diff --git a/app.js b/app.js index 3484d9a126727c7c078294c9de9d65dc77b095f9..a3facf39216654bd8b04c0e503794bcaf7224a79 100644 --- a/app.js +++ b/app.js @@ -9,7 +9,6 @@ var lessMiddleware = require('less-middleware'); var index = require('./routes/index'); var organisation = require('./routes/organisation'); var users = require('./routes/users'); - var app = express(); // view engine setup @@ -24,6 +23,7 @@ app.use(bodyParser.urlencoded({ extended: false })); app.use(cookieParser()); app.use(lessMiddleware(path.join(__dirname, 'public'))); app.use(express.static(path.join(__dirname, 'public'))); +app.use(express.static(path.join(__dirname, 'public'))); app.use('/', index); app.use('/users', users); diff --git a/node_modules/emitter-component/.npmignore b/node_modules/emitter-component/.npmignore new file mode 100644 index 0000000000000000000000000000000000000000..3c3629e647f5ddf82548912e337bea9826b434af --- /dev/null +++ b/node_modules/emitter-component/.npmignore @@ -0,0 +1 @@ +node_modules diff --git a/node_modules/emitter-component/.travis.yml b/node_modules/emitter-component/.travis.yml new file mode 100644 index 0000000000000000000000000000000000000000..8750e3bc213d9986c692d9317575fc0322ccb9c0 --- /dev/null +++ b/node_modules/emitter-component/.travis.yml @@ -0,0 +1,4 @@ +node_js: +- "0.8" +- "0.10" +language: node_js \ No newline at end of file diff --git a/node_modules/emitter-component/History.md b/node_modules/emitter-component/History.md new file mode 100644 index 0000000000000000000000000000000000000000..8dc9ba27f4814c327cd10b5b9c193d742936789a --- /dev/null +++ b/node_modules/emitter-component/History.md @@ -0,0 +1,35 @@ +1.1.0 / 2013-10-20 +================== + + * add `.addEventListener()` and `.removeEventListener()` aliases + +1.0.1 / 2013-06-27 +================== + + * add support for legacy ie + +1.0.0 / 2013-02-26 +================== + + * add `.off()` support for removing all listeners + +0.0.6 / 2012-10-08 +================== + + * add `this._callbacks` initialization to prevent funky gotcha + +0.0.5 / 2012-09-07 +================== + + * fix `Emitter.call(this)` usage + +0.0.3 / 2012-07-11 +================== + + * add `.listeners()` + * rename `.has()` to `.hasListeners()` + +0.0.2 / 2012-06-28 +================== + + * fix `.off()` with `.once()`-registered callbacks diff --git a/node_modules/emitter-component/Makefile b/node_modules/emitter-component/Makefile new file mode 100644 index 0000000000000000000000000000000000000000..4e9c8d36ebcd2f63843cf5a534e4db3459b2d637 --- /dev/null +++ b/node_modules/emitter-component/Makefile @@ -0,0 +1,7 @@ + +test: + @./node_modules/.bin/mocha \ + --require should \ + --reporter spec + +.PHONY: test \ No newline at end of file diff --git a/node_modules/emitter-component/Readme.md b/node_modules/emitter-component/Readme.md new file mode 100644 index 0000000000000000000000000000000000000000..49c3b709064a4221b531734549639ec083fc4d27 --- /dev/null +++ b/node_modules/emitter-component/Readme.md @@ -0,0 +1,70 @@ +# Emitter [![Build Status](https://travis-ci.org/component/emitter.png)](https://travis-ci.org/component/emitter) + + Event emitter component. + +## Installation + +``` +$ component install component/emitter +``` + +## API + +### Emitter(obj) + + The `Emitter` may also be used as a mixin. For example + a "plain" object may become an emitter, or you may + extend an existing prototype. + + As an `Emitter` instance: + +```js +var Emitter = require('emitter'); +var emitter = new Emitter; +emitter.emit('something'); +``` + + As a mixin: + +```js +var Emitter = require('emitter'); +var user = { name: 'tobi' }; +Emitter(user); + +user.emit('im a user'); +``` + + As a prototype mixin: + +```js +var Emitter = require('emitter'); +Emitter(User.prototype); +``` + +### Emitter#on(event, fn) + + Register an `event` handler `fn`. + +### Emitter#once(event, fn) + + Register a single-shot `event` handler `fn`, + removed immediately after it is invoked the + first time. + +### Emitter#off(event, fn) + + * Pass `event` and `fn` to remove a listener. + * Pass `event` to remove all listeners on that event. + * Pass nothing to remove all listeners on all events. + +### Emitter#emit(event, ...) + + Emit an `event` with variable option args. + +### Emitter#listeners(event) + + Return an array of callbacks, or an empty array. + +### Emitter#hasListeners(event) + + Check if this emitter has `event` handlers. diff --git a/node_modules/emitter-component/bower.json b/node_modules/emitter-component/bower.json new file mode 100644 index 0000000000000000000000000000000000000000..2a59fa403512b9b77da39df8fdb0837a42ec6084 --- /dev/null +++ b/node_modules/emitter-component/bower.json @@ -0,0 +1,21 @@ +{ + "name": "emitter", + "description": "Event emitter", + "keywords": [ + "emitter", + "events" + ], + "version": "1.1.1", + "license": "MIT", + "main": "index.js", + "homepage": "https://github.com/component/emitter", + "ignore": [ + "**/.*", + "node_modules", + "bower_components", + "test", + "Makefile", + "package.json", + "component.json" + ] +} diff --git a/node_modules/emitter-component/component.json b/node_modules/emitter-component/component.json new file mode 100644 index 0000000000000000000000000000000000000000..ddccee0dc72cc92bd83f0760560e15525230c475 --- /dev/null +++ b/node_modules/emitter-component/component.json @@ -0,0 +1,9 @@ +{ + "name": "emitter", + "repo": "component/emitter", + "description": "Event emitter", + "keywords": ["emitter", "events"], + "version": "1.1.1", + "scripts": ["index.js"], + "license": "MIT" +} diff --git a/node_modules/emitter-component/index.js b/node_modules/emitter-component/index.js new file mode 100644 index 0000000000000000000000000000000000000000..ad711633ae4ba1a846021eb9b379029735c3ee9d --- /dev/null +++ b/node_modules/emitter-component/index.js @@ -0,0 +1,164 @@ + +/** + * Expose `Emitter`. + */ + +module.exports = Emitter; + +/** + * Initialize a new `Emitter`. + * + * @api public + */ + +function Emitter(obj) { + if (obj) return mixin(obj); +}; + +/** + * Mixin the emitter properties. + * + * @param {Object} obj + * @return {Object} + * @api private + */ + +function mixin(obj) { + for (var key in Emitter.prototype) { + obj[key] = Emitter.prototype[key]; + } + return obj; +} + +/** + * Listen on the given `event` with `fn`. + * + * @param {String} event + * @param {Function} fn + * @return {Emitter} + * @api public + */ + +Emitter.prototype.on = +Emitter.prototype.addEventListener = function(event, fn){ + this._callbacks = this._callbacks || {}; + (this._callbacks[event] = this._callbacks[event] || []) + .push(fn); + return this; +}; + +/** + * Adds an `event` listener that will be invoked a single + * time then automatically removed. + * + * @param {String} event + * @param {Function} fn + * @return {Emitter} + * @api public + */ + +Emitter.prototype.once = function(event, fn){ + var self = this; + this._callbacks = this._callbacks || {}; + + function on() { + self.off(event, on); + fn.apply(this, arguments); + } + + on.fn = fn; + this.on(event, on); + return this; +}; + +/** + * Remove the given callback for `event` or all + * registered callbacks. + * + * @param {String} event + * @param {Function} fn + * @return {Emitter} + * @api public + */ + +Emitter.prototype.off = +Emitter.prototype.removeListener = +Emitter.prototype.removeAllListeners = +Emitter.prototype.removeEventListener = function(event, fn){ + this._callbacks = this._callbacks || {}; + + // all + if (0 == arguments.length) { + this._callbacks = {}; + return this; + } + + // specific event + var callbacks = this._callbacks[event]; + if (!callbacks) return this; + + // remove all handlers + if (1 == arguments.length) { + delete this._callbacks[event]; + return this; + } + + // remove specific handler + var cb; + for (var i = 0; i < callbacks.length; i++) { + cb = callbacks[i]; + if (cb === fn || cb.fn === fn) { + callbacks.splice(i, 1); + break; + } + } + return this; +}; + +/** + * Emit `event` with the given args. + * + * @param {String} event + * @param {Mixed} ... + * @return {Emitter} + */ + +Emitter.prototype.emit = function(event){ + this._callbacks = this._callbacks || {}; + var args = [].slice.call(arguments, 1) + , callbacks = this._callbacks[event]; + + if (callbacks) { + callbacks = callbacks.slice(0); + for (var i = 0, len = callbacks.length; i < len; ++i) { + callbacks[i].apply(this, args); + } + } + + return this; +}; + +/** + * Return array of callbacks for `event`. + * + * @param {String} event + * @return {Array} + * @api public + */ + +Emitter.prototype.listeners = function(event){ + this._callbacks = this._callbacks || {}; + return this._callbacks[event] || []; +}; + +/** + * Check if this emitter has `event` handlers. + * + * @param {String} event + * @return {Boolean} + * @api public + */ + +Emitter.prototype.hasListeners = function(event){ + return !! this.listeners(event).length; +}; diff --git a/node_modules/emitter-component/package.json b/node_modules/emitter-component/package.json new file mode 100644 index 0000000000000000000000000000000000000000..ba41b4da84572ca798af46341873e2f1aa22345f --- /dev/null +++ b/node_modules/emitter-component/package.json @@ -0,0 +1,50 @@ +{ + "_from": "emitter-component@^1.1.1", + "_id": "emitter-component@1.1.1", + "_inBundle": false, + "_integrity": "sha1-Bl4tvtaVm/RwZ57avq95gdEAOrY=", + "_location": "/emitter-component", + "_phantomChildren": {}, + "_requested": { + "type": "range", + "registry": true, + "raw": "emitter-component@^1.1.1", + "name": "emitter-component", + "escapedName": "emitter-component", + "rawSpec": "^1.1.1", + "saveSpec": null, + "fetchSpec": "^1.1.1" + }, + "_requiredBy": [ + "/vis" + ], + "_resolved": "https://registry.npmjs.org/emitter-component/-/emitter-component-1.1.1.tgz", + "_shasum": "065e2dbed6959bf470679edabeaf7981d1003ab6", + "_spec": "emitter-component@^1.1.1", + "_where": "D:\\git\\cmdb-gui\\node_modules\\vis", + "bugs": { + "url": "https://github.com/component/emitter/issues" + }, + "bundleDependencies": false, + "component": { + "scripts": { + "emitter": "index.js" + } + }, + "deprecated": false, + "description": "Event emitter", + "devDependencies": { + "mocha": "*", + "should": "*" + }, + "homepage": "https://github.com/component/emitter#readme", + "name": "emitter-component", + "repository": { + "type": "git", + "url": "git+https://github.com/component/emitter.git" + }, + "scripts": { + "test": "make test" + }, + "version": "1.1.1" +} diff --git a/node_modules/emitter-component/test/emitter.js b/node_modules/emitter-component/test/emitter.js new file mode 100644 index 0000000000000000000000000000000000000000..91ea483c07f9cf0d563e8f536cab16c91b4db779 --- /dev/null +++ b/node_modules/emitter-component/test/emitter.js @@ -0,0 +1,195 @@ + +var Emitter = require('..'); + +function Custom() { + Emitter.call(this) +} + +Custom.prototype.__proto__ = Emitter.prototype; + +describe('Custom', function(){ + describe('with Emitter.call(this)', function(){ + it('should work', function(done){ + var emitter = new Custom; + emitter.on('foo', done); + emitter.emit('foo'); + }) + }) +}) + +describe('Emitter', function(){ + describe('.on(event, fn)', function(){ + it('should add listeners', function(){ + var emitter = new Emitter; + var calls = []; + + emitter.on('foo', function(val){ + calls.push('one', val); + }); + + emitter.on('foo', function(val){ + calls.push('two', val); + }); + + emitter.emit('foo', 1); + emitter.emit('bar', 1); + emitter.emit('foo', 2); + + calls.should.eql([ 'one', 1, 'two', 1, 'one', 2, 'two', 2 ]); + }) + }) + + describe('.once(event, fn)', function(){ + it('should add a single-shot listener', function(){ + var emitter = new Emitter; + var calls = []; + + emitter.once('foo', function(val){ + calls.push('one', val); + }); + + emitter.emit('foo', 1); + emitter.emit('foo', 2); + emitter.emit('foo', 3); + emitter.emit('bar', 1); + + calls.should.eql([ 'one', 1 ]); + }) + }) + + describe('.off(event, fn)', function(){ + it('should remove a listener', function(){ + var emitter = new Emitter; + var calls = []; + + function one() { calls.push('one'); } + function two() { calls.push('two'); } + + emitter.on('foo', one); + emitter.on('foo', two); + emitter.off('foo', two); + + emitter.emit('foo'); + + calls.should.eql([ 'one' ]); + }) + + it('should work with .once()', function(){ + var emitter = new Emitter; + var calls = []; + + function one() { calls.push('one'); } + + emitter.once('foo', one); + emitter.once('fee', one); + emitter.off('foo', one); + + emitter.emit('foo'); + + calls.should.eql([]); + }) + + it('should work when called from an event', function(){ + var emitter = new Emitter + , called + function b () { + called = true; + } + emitter.on('tobi', function () { + emitter.off('tobi', b); + }); + emitter.on('tobi', b); + emitter.emit('tobi'); + called.should.be.true; + called = false; + emitter.emit('tobi'); + called.should.be.false; + }); + }) + + describe('.off(event)', function(){ + it('should remove all listeners for an event', function(){ + var emitter = new Emitter; + var calls = []; + + function one() { calls.push('one'); } + function two() { calls.push('two'); } + + emitter.on('foo', one); + emitter.on('foo', two); + emitter.off('foo'); + + emitter.emit('foo'); + emitter.emit('foo'); + + calls.should.eql([]); + }) + }) + + describe('.off()', function(){ + it('should remove all listeners', function(){ + var emitter = new Emitter; + var calls = []; + + function one() { calls.push('one'); } + function two() { calls.push('two'); } + + emitter.on('foo', one); + emitter.on('bar', two); + + emitter.emit('foo'); + emitter.emit('bar'); + + emitter.off(); + + emitter.emit('foo'); + emitter.emit('bar'); + + calls.should.eql(['one', 'two']); + }) + }) + + describe('.listeners(event)', function(){ + describe('when handlers are present', function(){ + it('should return an array of callbacks', function(){ + var emitter = new Emitter; + function foo(){} + emitter.on('foo', foo); + emitter.listeners('foo').should.eql([foo]); + }) + }) + + describe('when no handlers are present', function(){ + it('should return an empty array', function(){ + var emitter = new Emitter; + emitter.listeners('foo').should.eql([]); + }) + }) + }) + + describe('.hasListeners(event)', function(){ + describe('when handlers are present', function(){ + it('should return true', function(){ + var emitter = new Emitter; + emitter.on('foo', function(){}); + emitter.hasListeners('foo').should.be.true; + }) + }) + + describe('when no handlers are present', function(){ + it('should return false', function(){ + var emitter = new Emitter; + emitter.hasListeners('foo').should.be.false; + }) + }) + }) +}) + +describe('Emitter(obj)', function(){ + it('should mixin', function(done){ + var proto = {}; + Emitter(proto); + proto.on('something', done); + proto.emit('something'); + }) +}) diff --git a/node_modules/hammerjs/.bowerrc b/node_modules/hammerjs/.bowerrc new file mode 100644 index 0000000000000000000000000000000000000000..a3731bd2c5f20a2f5b7f87e8ade328f7b4579af0 --- /dev/null +++ b/node_modules/hammerjs/.bowerrc @@ -0,0 +1,3 @@ +{ + "json": "bower.json" +} \ No newline at end of file diff --git a/node_modules/hammerjs/.jscsrc b/node_modules/hammerjs/.jscsrc new file mode 100644 index 0000000000000000000000000000000000000000..168677b828e24393b3b46f4261fe777d6f7adcee --- /dev/null +++ b/node_modules/hammerjs/.jscsrc @@ -0,0 +1,95 @@ +{ + "excludeFiles": [ + "*.js", + "tests/**/assets", + "node_modules/**" + ], + "requireCurlyBraces": [ + "if", + "else", + "for", + "while", + "do", + "try", + "catch" + ], + "requireOperatorBeforeLineBreak": true, + "requireCamelCaseOrUpperCaseIdentifiers": true, + "maximumLineLength": { + "value": 120, + "allowComments": true, + "allowRegex": true + }, + "validateIndentation": 4, + "validateQuoteMarks": "'", + "disallowMultipleLineStrings": true, + "disallowMixedSpacesAndTabs": true, + "disallowTrailingWhitespace": true, + "disallowSpaceAfterPrefixUnaryOperators": true, + "requireSpaceAfterKeywords": [ + "if", + "else", + "for", + "while", + "do", + "switch", + "return", + "try", + "catch" + ], + "requireSpaceBeforeBinaryOperators": [ + "=", + "+=", + "-=", + "*=", + "/=", + "%=", + "<<=", + ">>=", + ">>>=", + "&=", + "|=", + "^=", + "+=", + "+", + "-", + "*", + "/", + "%", + "<<", + ">>", + ">>>", + "&", + "|", + "^", + "&&", + "||", + "===", + "==", + ">=", + "<=", + "<", + ">", + "!=", + "!==" + ], + "requireSpaceAfterBinaryOperators": true, + "requireSpacesInConditionalExpression": true, + "requireSpaceBeforeBlockStatements": true, + "requireLineFeedAtFileEnd": true, + "requireSpacesInFunctionExpression": { + "beforeOpeningCurlyBrace": true + }, + "disallowSpacesInAnonymousFunctionExpression": { + "beforeOpeningRoundBrace": true + }, + "disallowSpacesInsideObjectBrackets": "all", + "disallowSpacesInsideArrayBrackets": "all", + "disallowSpacesInsideParentheses": true, + "validateJSDoc": { + "checkParamNames": true, + "requireParamTypes": true + }, + "disallowMultipleLineBreaks": true, + "disallowNewlineBeforeBlockStatements": true +} \ No newline at end of file diff --git a/node_modules/hammerjs/.jshintrc b/node_modules/hammerjs/.jshintrc new file mode 100644 index 0000000000000000000000000000000000000000..925e528b52bf1e2f286d0f7c30affdcfca7b5e7d --- /dev/null +++ b/node_modules/hammerjs/.jshintrc @@ -0,0 +1,22 @@ +{ + "browser": true, + "curly": true, + "eqnull": true, + "expr": true, + "maxerr": 100, + "freeze": true, + "newcap": true, + "node": true, + "quotmark": "single", + "strict": true, + "sub": true, + "trailing": true, + "undef": true, + "unused": true, + "camelcase": true, + "indent": 4, + "validthis": true, + "globals": { + "define": false + } +} diff --git a/node_modules/hammerjs/.npmignore b/node_modules/hammerjs/.npmignore new file mode 100644 index 0000000000000000000000000000000000000000..391688ff93de1791aa336f1d3c75a10a2ee60b7d --- /dev/null +++ b/node_modules/hammerjs/.npmignore @@ -0,0 +1,21 @@ +# ide +.idea +.iml + +# node +lib-cov +*.seed +*.log +*.csv +*.dat +*.out +*.pid +*.gz + +pids +logs +results +tests/build.js + +npm-debug.log +node_modules diff --git a/node_modules/hammerjs/.travis.yml b/node_modules/hammerjs/.travis.yml new file mode 100644 index 0000000000000000000000000000000000000000..308d9a6e8676e188ed8789dd8bbbd3460b3a6f08 --- /dev/null +++ b/node_modules/hammerjs/.travis.yml @@ -0,0 +1,11 @@ +language: node_js +node_js: + - "0.10" + +sudo: false + +before_script: + - npm install -g grunt-cli + +script: + - grunt test-travis \ No newline at end of file diff --git a/node_modules/hammerjs/CHANGELOG.md b/node_modules/hammerjs/CHANGELOG.md new file mode 100644 index 0000000000000000000000000000000000000000..d3bc17db6c12d6a03c09d6718233728064f2928f --- /dev/null +++ b/node_modules/hammerjs/CHANGELOG.md @@ -0,0 +1,54 @@ +# Changelog + +### 2.0.6, 2015-12-23 +- Add Assign method and deprecate merge and extend ([#895](https://github.com/hammerjs/hammer.js/pull/895)[fc01eae](https://github.com/hammerjs/hammer.js/commit/fc01eaea678acc430c664eb374555fbe3d403bdd)) +- Expose Hammer on window or self if either is defined to avoid issues when AMD is present but not used. ( [356f795](https://github.com/hammerjs/hammer.js/commit/356f7955b01f3679c29d6c45931679256b45036e)) +- Add support for PointerEvent instead of MSPointerEvent if supported. ([#754](https://github.com/hammerjs/hammer.js/issues/754), [439c7a6](https://github.com/hammerjs/hammer.js/commit/439c7a6c46978ab387b4b8289399e904d1c49535)) +- Fixed moz-prefix, prefix should be Moz not moz. ([3ea47f3](https://github.com/hammerjs/hammer.js/commit/3ea47f3aebadc9d3bb6bf52bc8402cad135ef8a9)) +- Removed non-existant recognizer ([f1c2d3b](https://github.com/hammerjs/hammer.js/commit/f1c2d3bf05f530ae092ecfc2335fceeff0e9eec9)) +- Fixed config leaking between instances([189098f](https://github.com/hammerjs/hammer.js/commit/189098ff7736f6ed2fce9a3d3e1f5a3afee085ba)) +- Fixed gaps in gesture configs and update tests to match ([70c2902](https://github.com/hammerjs/hammer.js/commit/70c2902d773a750e92ce8c423f8a4165c07eab97)) +- Fixed Manager off method ([#768](https://github.com/hammerjs/hammer.js/issues/768), [da49a27](https://github.com/hammerjs/hammer.js/commit/da49a2730779ecc3b4dd147cc418a0df7c70fad9)) +- Added compatibility with requirejs optimizer namespaces ( [70075f2](https://github.com/hammerjs/hammer.js/commit/70075f2df1b855f7c6d8d3caac49b9276b88c8d6)) +- Made touchaction test zoomable ( [50264a7](https://github.com/hammerjs/hammer.js/commit/50264a70251ca88bbaf7b666401e527eee616de5)) +- Fixed preventing default when for `pan-x pan-y` case ( [95eaafa](https://github.com/hammerjs/hammer.js/commit/95eaafadad27bd1b25d20cf976811a451922f1c4)) +- Fixed incorrect touch action pan direction ( [a81da57](https://github.com/hammerjs/hammer.js/commit/a81da57a82ebf37e695e7c443e4e2715e7f32856)) +- Fixed combined pan-x pan-y to resolve to none ( [fdae07b](https://github.com/hammerjs/hammer.js/commit/fdae07bc2ba3c90aad28da6791b3d5df627bc612)) +- Fixed inverted touch-action for pan recognizer ([#728](https://github.com/hammerjs/hammer.js/issues/728), [605bd3b](https://github.com/hammerjs/hammer.js/commit/605bd3beca780be91dd43f9da8b809d155a43d1a)) +- Fixed dependency on non standard touch list ordering ([#610](https://github.com/hammerjs/hammer.js/issues/610), [#791](https://github.com/hammerjs/hammer.js/issues/791), [287720a](https://github.com/hammerjs/hammer.js/commit/287720a6e5067e7f28be8b8b3b266d22905361c4)) +- Fixed swipe to not trigger after multitouch gesture ([#640](https://github.com/hammerjs/hammer.js/issues/640), [711d8a1](https://github.com/hammerjs/hammer.js/commit/711d8a1df1aa5057ecb536454a36257e3c0d6d91)) +- Fixed swipe recognizer to use overall gesture direction and velocity ( [963fe69](https://github.com/hammerjs/hammer.js/commit/963fe697515273fee508414bc29e2656465cea55)) +- Fixed getDirection returning reversed direction ( [e40dcde](https://github.com/hammerjs/hammer.js/commit/e40dcde43bdac7a74c8ce5c05a4f62121089cd91)) +- Fixed detection of tap when multi touch gestures are present ( [c46cbba](https://github.com/hammerjs/hammer.js/commit/c46cbba1c2cbbf874b59913416858d9dae297e64)) +- Fixed incorrect event order ([#824](https://github.com/hammerjs/hammer.js/issues/824), [92f2d76](https://github.com/hammerjs/hammer.js/commit/92f2d76188480d967e738a19cd508d0b94a31329)) +- Fixed leaking options between recognizer instances ([#813](https://github.com/hammerjs/hammer.js/issues/813), [af32c9b](https://github.com/hammerjs/hammer.js/commit/af32c9bace3f04bb34bee852ff56a33cc8fc27cd)) +- Fixed detection when element has no style attribute ( [5ca6d8c](https://github.com/hammerjs/hammer.js/commit/5ca6d8cbead02c71929a8073e95ddf98e11c0e06)) + +### 2.0.4, 2014-09-28 +- Fix IE pointer issue. [#665](https://github.com/hammerjs/hammer.js/pull/665) +- Fix multi-touch at different elements. [#668](https://github.com/hammerjs/hammer.js/pull/668) +- Added experimental [single-user Touch input handler](src/input/singletouch.js). This to improve performance/ux when only a single user has to be supported. Plans are to release 2.1 with this as default, and a settings to enable the multi-user handler. + +### 2.0.3, 2014-09-10 +- Manager.set improvements. +- Fix requireFailure() call in Manager.options.recognizers. +- Make DIRECTION_ALL for pan and swipe gestures less blocking. +- Fix Swipe recognizer threshold option. +- Expose the Input classes. +- Added the option `inputClass` to set the used input handler. + +### 2.0.2, 2014-07-26 +- Improved mouse and pointer-events input, now able to move outside the window. +- Added the export name (`Hammer`) as an argument to the wrapper. +- Add the option *experimental* `inputTarget` to change the element that receives the events. +- Improved performance when only one touch being active. +- Fixed the jumping deltaXY bug when going from single to multi-touch. +- Improved velocity calculations. + +### 2.0.1, 2014-07-15 +- Fix issue when no document.body is available +- Added pressup event for the press recognizer +- Removed alternative for Object.create + +### 2.0.0, 2014-07-11 +- Full rewrite of the library. diff --git a/node_modules/hammerjs/CONTRIBUTING.md b/node_modules/hammerjs/CONTRIBUTING.md new file mode 100644 index 0000000000000000000000000000000000000000..b1934de6b781fc77492d1c1a6e50e9535809cbca --- /dev/null +++ b/node_modules/hammerjs/CONTRIBUTING.md @@ -0,0 +1,41 @@ +# Contributing to Hammer.js + +Looking to contribute something to Hammer.js? **Here's how you can help.** + + +## Reporting issues + +We only accept issues that are bug reports or feature requests. Bugs must be +isolated and reproducible problems that can be fixed within the Hammer.js. +Please read the following guidelines before opening any issue. + +1. [**Read the documentation**](https://hammerjs.github.io) + +2. **Search for existing issues.** We get a lot of duplicate issues, and you'd +help us out a lot by first checking if someone else has reported the same issue. +Moreover, the issue may have already been resolved with a fix available. Also +take a look if your problem is explained at the Wiki. + +3. **Create an isolated and reproducible test case.** Be sure the problem exists +in Hammer's code with a reduced test case that should be included in each bug +report. + +4. **Include a live example.** Make use of jsFiddle or jsBin to share your +isolated test cases. Also, a screen capture would work, with tools like LICEcap. + +5. **Share as much information as possible.** Include operating system and +version, browser and version, version of Hammer.js, customized or vanilla build, +etc. where appropriate. Also include steps to reproduce the bug. + +## Pull requests + +1. Changes must be done in `/src` files, never just the compiled files. Also, don't +commit the compiled files. + +2. Try not to pollute your pull request with unintended changes. Keep them simple +and small + +3. Try to share which browsers your code has been tested in before submitting a +pull request + +4. Write tests for your code, these can be found in `/tests`. diff --git a/node_modules/hammerjs/Gruntfile.coffee b/node_modules/hammerjs/Gruntfile.coffee new file mode 100644 index 0000000000000000000000000000000000000000..739af0c56cf6b6d2663b60a8e1f3a67c6c57f6dc --- /dev/null +++ b/node_modules/hammerjs/Gruntfile.coffee @@ -0,0 +1,124 @@ +module.exports = (grunt) -> + grunt.initConfig + pkg: grunt.file.readJSON 'package.json' + + usebanner: + taskName: + options: + position: 'top' + banner: ' +/*! <%= pkg.title || pkg.name %> - v<%= pkg.version %> - <%= grunt.template.today("yyyy-mm-dd") %>\n + * <%= pkg.homepage %>\n + *\n + * Copyright (c) <%= grunt.template.today("yyyy") %> <%= pkg.author.name %>;\n + * Licensed under the <%= pkg.license %> license */' + linebreak: true + files: + src: ['./hammer.js','./hammer.min.js'] + + concat: + build: + src: [ + 'src/hammer.prefix.js' + 'src/utils.js' + 'src/input.js' + 'src/input/*.js' + 'src/touchaction.js' + 'src/recognizer.js' + 'src/recognizers/*.js' + 'src/hammer.js' + 'src/manager.js' + 'src/expose.js' + 'src/hammer.suffix.js'] + dest: 'hammer.js' + + uglify: + min: + options: + report: 'gzip' + sourceMap: 'hammer.min.map' + files: + 'hammer.min.js': ['hammer.js'] + # special test build that exposes everything so it's testable + test: + options: + wrap: "$H" + comments: 'all' + exportAll: true + mangle: false + beautify: true + compress: + global_defs: + exportName: 'Hammer' + files: + 'tests/build.js': [ + 'src/utils.js' + 'src/input.js' + 'src/input/*.js' + 'src/touchaction.js' + 'src/recognizer.js' + 'src/recognizers/*.js' + 'src/hammer.js' + 'src/manager.js' + 'src/expose.js'] + + 'string-replace': + version: + files: + 'hammer.js': 'hammer.js' + options: + replacements: [ + pattern: '{{PKG_VERSION}}' + replacement: '<%= pkg.version %>' + ] + + jshint: + options: + jshintrc: true + build: + src: ['hammer.js'] + + jscs: + src: [ + 'src/**/*.js', + '!src/hammer.prefix.js', + '!src/hammer.suffix.js' + ] + options: + config: "./.jscsrc" + force: true + + watch: + scripts: + files: ['src/**/*.js'] + tasks: ['concat','string-replace','uglify','jshint','jscs'] + options: + interrupt: true + + connect: + server: + options: + hostname: "0.0.0.0" + port: 8000 + + qunit: + all: ['tests/unit/index.html'] + + + # Load tasks + grunt.loadNpmTasks 'grunt-contrib-concat' + grunt.loadNpmTasks 'grunt-contrib-uglify' + grunt.loadNpmTasks 'grunt-contrib-qunit' + grunt.loadNpmTasks 'grunt-contrib-watch' + grunt.loadNpmTasks 'grunt-contrib-jshint' + grunt.loadNpmTasks 'grunt-contrib-connect' + grunt.loadNpmTasks 'grunt-string-replace' + grunt.loadNpmTasks 'grunt-banner' + grunt.loadNpmTasks 'grunt-jscs' + + # Default task(s) + grunt.registerTask 'default', ['connect', 'watch'] + grunt.registerTask 'default-test', ['connect', 'uglify:test', 'watch'] + grunt.registerTask 'build', ['concat', 'string-replace', 'uglify:min', 'usebanner', 'test'] + grunt.registerTask 'test', ['jshint', 'jscs', 'uglify:test', 'qunit'] + grunt.registerTask 'test-travis', ['build'] diff --git a/node_modules/hammerjs/LICENSE.md b/node_modules/hammerjs/LICENSE.md new file mode 100644 index 0000000000000000000000000000000000000000..e067655d694c1341ea3fb268301facb61c645d88 --- /dev/null +++ b/node_modules/hammerjs/LICENSE.md @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (C) 2011-2014 by Jorik Tangelder (Eight Media) + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/node_modules/hammerjs/README.md b/node_modules/hammerjs/README.md new file mode 100644 index 0000000000000000000000000000000000000000..e7bf8b8f0497b9e3d2026f3a828ce25075adf859 --- /dev/null +++ b/node_modules/hammerjs/README.md @@ -0,0 +1,51 @@ +# Hammer.js 2.0.6 + +[![Build Status](https://travis-ci.org/hammerjs/hammer.js.svg)](https://travis-ci.org/hammerjs/hammer.js) + +## Support, Questions, and Collaboration + +[![Slack Status](https://hammerjs.herokuapp.com/badge.svg)](https://hammerjs.herokuapp.com/) + +## Documentation + +Visit [hammerjs.github.io](http://hammerjs.github.io) for detailed documentation. + +```js +// get a reference to an element +var stage = document.getElementById('stage'); + +// create a manager for that element +var mc = new Hammer.Manager(stage); + +// create a recognizer +var Rotate = new Hammer.Rotate(); + +// add the recognizer +mc.add(Rotate); + +// subscribe to events +mc.on('rotate', function(e) { + // do something cool + var rotation = Math.round(e.rotation); + stage.style.transform = 'rotate('+rotation+'deg)'; +}); +``` + +An advanced demo is available here: [http://codepen.io/runspired/full/ZQBGWd/](http://codepen.io/runspired/full/ZQBGWd/) + + +## Contributing + +Read the [contributing guidelines](./CONTRIBUTING.md). + +For PRs. + +- Use [Angular Style commit messages](https://github.com/angular/angular.js/blob/v1.4.8/CONTRIBUTING.md#commit) +- Rebase your PR branch when necessary +- If you add a feature or fix a bug, please add or fix any necessary tests. +- If a new feature, open a docs PR to go with. + +## Building + +You can get the pre-build versions from the Hammer.js website, or do this by yourself running +`npm install -g grunt-cli && npm install && grunt build` diff --git a/node_modules/hammerjs/bower.json b/node_modules/hammerjs/bower.json new file mode 100644 index 0000000000000000000000000000000000000000..f241608cdf58ddecedbd04b9a591abba917d5bee --- /dev/null +++ b/node_modules/hammerjs/bower.json @@ -0,0 +1,16 @@ +{ + "name": "hammerjs", + "main": "hammer.js", + "ignore": [ + "tests", + "src", + ".bowerrc", + ".gitignore", + ".jscsrc", + ".jshintrc", + ".travis.yml", + "component.json", + "Gruntfile.coffee", + "package.json" + ] +} diff --git a/node_modules/hammerjs/changelog.js b/node_modules/hammerjs/changelog.js new file mode 100644 index 0000000000000000000000000000000000000000..887a32926cb5ab774661ca7e900333c79edbd856 --- /dev/null +++ b/node_modules/hammerjs/changelog.js @@ -0,0 +1,71 @@ +var changelog = require( "changelogplease" ); +var gittags = require( "git-tags" ).get( function( error, tags ) { + if ( error ) { + throw error + } + console.log( tags[ 1 ] + ".." + tags[ 0 ] ); + var exclude = [ "Merge", "Whitespace", "Fixup", "Cleanup", "Formatting", "Ignore" ]; + changelog( { + ticketUrl: "https://github.com/hammerjs/hammer.js/issues/{id}", + commitUrl: "https://github.com/hammerjs/hammerjs/commit/{id}", + sort: false, + repo: "./", + committish: tags[ 1 ] + ".." + tags[ 0 ] + }, function( error, log ) { + if ( error ) { + throw error; + } + log = parseLog( log ); + console.log( log ); + } ); + function parseLog( log ) { + var lines = log.split( "\n" ); + var newLog = []; + var log = []; + var currentComponent; + + + lines.shift(); + lines.forEach( function( line ) { + var newLine = parseLine( line ); + if ( newLine ) { + log.push( line ); + } + } ); + var log = log.join( "\n" ); + return log.replace( /\*/g, "-" ).replace( /__TICKETREF__,/g, "" ); + } + function parseLine( line ) { + var parts = getParts( line ); + + if ( exclude.indexOf( parts.component ) > -1 ) { + return false; + } + return parts; + } + function getParts( line ) { + var parts = line.split( ":" ); + var component = ""; + var message; + var commits = line.match( /\{\{([A-Za-z0-9 ]){0,99}\}\}/ ) + + if ( parts.length > 1 && parts[ 0 ].length <= 20 ) { + component = parts[ 0 ]; + parts.shift(); + message = parts.join( ":" ); + } else { + parts = line.split( " " ); + component = parts[ 1 ]; + parts.shift(); + message = parts.join( " " ); + } + + if ( component ) { + component = component.replace( /\* |,/, "" ); + } + return { + component: component, + message: message + }; + } +} ); diff --git a/node_modules/hammerjs/component.json b/node_modules/hammerjs/component.json new file mode 100644 index 0000000000000000000000000000000000000000..4af3a335a4222f2be245fea1f2fe04e5188e4aba --- /dev/null +++ b/node_modules/hammerjs/component.json @@ -0,0 +1,8 @@ +{ + "name": "hammerjs", + "version": "2.0.6", + "main": "hammer.js", + "scripts": [ + "hammer.js" + ] +} diff --git a/node_modules/hammerjs/hammer.js b/node_modules/hammerjs/hammer.js new file mode 100644 index 0000000000000000000000000000000000000000..00d2965ebdb42c4ef17b2258fc5402cd26279266 --- /dev/null +++ b/node_modules/hammerjs/hammer.js @@ -0,0 +1,2643 @@ +/*! Hammer.JS - v2.0.7 - 2016-04-22 + * http://hammerjs.github.io/ + * + * Copyright (c) 2016 Jorik Tangelder; + * Licensed under the MIT license */ +(function(window, document, exportName, undefined) { + 'use strict'; + +var VENDOR_PREFIXES = ['', 'webkit', 'Moz', 'MS', 'ms', 'o']; +var TEST_ELEMENT = document.createElement('div'); + +var TYPE_FUNCTION = 'function'; + +var round = Math.round; +var abs = Math.abs; +var now = Date.now; + +/** + * set a timeout with a given scope + * @param {Function} fn + * @param {Number} timeout + * @param {Object} context + * @returns {number} + */ +function setTimeoutContext(fn, timeout, context) { + return setTimeout(bindFn(fn, context), timeout); +} + +/** + * if the argument is an array, we want to execute the fn on each entry + * if it aint an array we don't want to do a thing. + * this is used by all the methods that accept a single and array argument. + * @param {*|Array} arg + * @param {String} fn + * @param {Object} [context] + * @returns {Boolean} + */ +function invokeArrayArg(arg, fn, context) { + if (Array.isArray(arg)) { + each(arg, context[fn], context); + return true; + } + return false; +} + +/** + * walk objects and arrays + * @param {Object} obj + * @param {Function} iterator + * @param {Object} context + */ +function each(obj, iterator, context) { + var i; + + if (!obj) { + return; + } + + if (obj.forEach) { + obj.forEach(iterator, context); + } else if (obj.length !== undefined) { + i = 0; + while (i < obj.length) { + iterator.call(context, obj[i], i, obj); + i++; + } + } else { + for (i in obj) { + obj.hasOwnProperty(i) && iterator.call(context, obj[i], i, obj); + } + } +} + +/** + * wrap a method with a deprecation warning and stack trace + * @param {Function} method + * @param {String} name + * @param {String} message + * @returns {Function} A new function wrapping the supplied method. + */ +function deprecate(method, name, message) { + var deprecationMessage = 'DEPRECATED METHOD: ' + name + '\n' + message + ' AT \n'; + return function() { + var e = new Error('get-stack-trace'); + var stack = e && e.stack ? e.stack.replace(/^[^\(]+?[\n$]/gm, '') + .replace(/^\s+at\s+/gm, '') + .replace(/^Object.\s*\(/gm, '{anonymous}()@') : 'Unknown Stack Trace'; + + var log = window.console && (window.console.warn || window.console.log); + if (log) { + log.call(window.console, deprecationMessage, stack); + } + return method.apply(this, arguments); + }; +} + +/** + * extend object. + * means that properties in dest will be overwritten by the ones in src. + * @param {Object} target + * @param {...Object} objects_to_assign + * @returns {Object} target + */ +var assign; +if (typeof Object.assign !== 'function') { + assign = function assign(target) { + if (target === undefined || target === null) { + throw new TypeError('Cannot convert undefined or null to object'); + } + + var output = Object(target); + for (var index = 1; index < arguments.length; index++) { + var source = arguments[index]; + if (source !== undefined && source !== null) { + for (var nextKey in source) { + if (source.hasOwnProperty(nextKey)) { + output[nextKey] = source[nextKey]; + } + } + } + } + return output; + }; +} else { + assign = Object.assign; +} + +/** + * extend object. + * means that properties in dest will be overwritten by the ones in src. + * @param {Object} dest + * @param {Object} src + * @param {Boolean} [merge=false] + * @returns {Object} dest + */ +var extend = deprecate(function extend(dest, src, merge) { + var keys = Object.keys(src); + var i = 0; + while (i < keys.length) { + if (!merge || (merge && dest[keys[i]] === undefined)) { + dest[keys[i]] = src[keys[i]]; + } + i++; + } + return dest; +}, 'extend', 'Use `assign`.'); + +/** + * merge the values from src in the dest. + * means that properties that exist in dest will not be overwritten by src + * @param {Object} dest + * @param {Object} src + * @returns {Object} dest + */ +var merge = deprecate(function merge(dest, src) { + return extend(dest, src, true); +}, 'merge', 'Use `assign`.'); + +/** + * simple class inheritance + * @param {Function} child + * @param {Function} base + * @param {Object} [properties] + */ +function inherit(child, base, properties) { + var baseP = base.prototype, + childP; + + childP = child.prototype = Object.create(baseP); + childP.constructor = child; + childP._super = baseP; + + if (properties) { + assign(childP, properties); + } +} + +/** + * simple function bind + * @param {Function} fn + * @param {Object} context + * @returns {Function} + */ +function bindFn(fn, context) { + return function boundFn() { + return fn.apply(context, arguments); + }; +} + +/** + * let a boolean value also be a function that must return a boolean + * this first item in args will be used as the context + * @param {Boolean|Function} val + * @param {Array} [args] + * @returns {Boolean} + */ +function boolOrFn(val, args) { + if (typeof val == TYPE_FUNCTION) { + return val.apply(args ? args[0] || undefined : undefined, args); + } + return val; +} + +/** + * use the val2 when val1 is undefined + * @param {*} val1 + * @param {*} val2 + * @returns {*} + */ +function ifUndefined(val1, val2) { + return (val1 === undefined) ? val2 : val1; +} + +/** + * addEventListener with multiple events at once + * @param {EventTarget} target + * @param {String} types + * @param {Function} handler + */ +function addEventListeners(target, types, handler) { + each(splitStr(types), function(type) { + target.addEventListener(type, handler, false); + }); +} + +/** + * removeEventListener with multiple events at once + * @param {EventTarget} target + * @param {String} types + * @param {Function} handler + */ +function removeEventListeners(target, types, handler) { + each(splitStr(types), function(type) { + target.removeEventListener(type, handler, false); + }); +} + +/** + * find if a node is in the given parent + * @method hasParent + * @param {HTMLElement} node + * @param {HTMLElement} parent + * @return {Boolean} found + */ +function hasParent(node, parent) { + while (node) { + if (node == parent) { + return true; + } + node = node.parentNode; + } + return false; +} + +/** + * small indexOf wrapper + * @param {String} str + * @param {String} find + * @returns {Boolean} found + */ +function inStr(str, find) { + return str.indexOf(find) > -1; +} + +/** + * split string on whitespace + * @param {String} str + * @returns {Array} words + */ +function splitStr(str) { + return str.trim().split(/\s+/g); +} + +/** + * find if a array contains the object using indexOf or a simple polyFill + * @param {Array} src + * @param {String} find + * @param {String} [findByKey] + * @return {Boolean|Number} false when not found, or the index + */ +function inArray(src, find, findByKey) { + if (src.indexOf && !findByKey) { + return src.indexOf(find); + } else { + var i = 0; + while (i < src.length) { + if ((findByKey && src[i][findByKey] == find) || (!findByKey && src[i] === find)) { + return i; + } + i++; + } + return -1; + } +} + +/** + * convert array-like objects to real arrays + * @param {Object} obj + * @returns {Array} + */ +function toArray(obj) { + return Array.prototype.slice.call(obj, 0); +} + +/** + * unique array with objects based on a key (like 'id') or just by the array's value + * @param {Array} src [{id:1},{id:2},{id:1}] + * @param {String} [key] + * @param {Boolean} [sort=False] + * @returns {Array} [{id:1},{id:2}] + */ +function uniqueArray(src, key, sort) { + var results = []; + var values = []; + var i = 0; + + while (i < src.length) { + var val = key ? src[i][key] : src[i]; + if (inArray(values, val) < 0) { + results.push(src[i]); + } + values[i] = val; + i++; + } + + if (sort) { + if (!key) { + results = results.sort(); + } else { + results = results.sort(function sortUniqueArray(a, b) { + return a[key] > b[key]; + }); + } + } + + return results; +} + +/** + * get the prefixed property + * @param {Object} obj + * @param {String} property + * @returns {String|Undefined} prefixed + */ +function prefixed(obj, property) { + var prefix, prop; + var camelProp = property[0].toUpperCase() + property.slice(1); + + var i = 0; + while (i < VENDOR_PREFIXES.length) { + prefix = VENDOR_PREFIXES[i]; + prop = (prefix) ? prefix + camelProp : property; + + if (prop in obj) { + return prop; + } + i++; + } + return undefined; +} + +/** + * get a unique id + * @returns {number} uniqueId + */ +var _uniqueId = 1; +function uniqueId() { + return _uniqueId++; +} + +/** + * get the window object of an element + * @param {HTMLElement} element + * @returns {DocumentView|Window} + */ +function getWindowForElement(element) { + var doc = element.ownerDocument || element; + return (doc.defaultView || doc.parentWindow || window); +} + +var MOBILE_REGEX = /mobile|tablet|ip(ad|hone|od)|android/i; + +var SUPPORT_TOUCH = ('ontouchstart' in window); +var SUPPORT_POINTER_EVENTS = prefixed(window, 'PointerEvent') !== undefined; +var SUPPORT_ONLY_TOUCH = SUPPORT_TOUCH && MOBILE_REGEX.test(navigator.userAgent); + +var INPUT_TYPE_TOUCH = 'touch'; +var INPUT_TYPE_PEN = 'pen'; +var INPUT_TYPE_MOUSE = 'mouse'; +var INPUT_TYPE_KINECT = 'kinect'; + +var COMPUTE_INTERVAL = 25; + +var INPUT_START = 1; +var INPUT_MOVE = 2; +var INPUT_END = 4; +var INPUT_CANCEL = 8; + +var DIRECTION_NONE = 1; +var DIRECTION_LEFT = 2; +var DIRECTION_RIGHT = 4; +var DIRECTION_UP = 8; +var DIRECTION_DOWN = 16; + +var DIRECTION_HORIZONTAL = DIRECTION_LEFT | DIRECTION_RIGHT; +var DIRECTION_VERTICAL = DIRECTION_UP | DIRECTION_DOWN; +var DIRECTION_ALL = DIRECTION_HORIZONTAL | DIRECTION_VERTICAL; + +var PROPS_XY = ['x', 'y']; +var PROPS_CLIENT_XY = ['clientX', 'clientY']; + +/** + * create new input type manager + * @param {Manager} manager + * @param {Function} callback + * @returns {Input} + * @constructor + */ +function Input(manager, callback) { + var self = this; + this.manager = manager; + this.callback = callback; + this.element = manager.element; + this.target = manager.options.inputTarget; + + // smaller wrapper around the handler, for the scope and the enabled state of the manager, + // so when disabled the input events are completely bypassed. + this.domHandler = function(ev) { + if (boolOrFn(manager.options.enable, [manager])) { + self.handler(ev); + } + }; + + this.init(); + +} + +Input.prototype = { + /** + * should handle the inputEvent data and trigger the callback + * @virtual + */ + handler: function() { }, + + /** + * bind the events + */ + init: function() { + this.evEl && addEventListeners(this.element, this.evEl, this.domHandler); + this.evTarget && addEventListeners(this.target, this.evTarget, this.domHandler); + this.evWin && addEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler); + }, + + /** + * unbind the events + */ + destroy: function() { + this.evEl && removeEventListeners(this.element, this.evEl, this.domHandler); + this.evTarget && removeEventListeners(this.target, this.evTarget, this.domHandler); + this.evWin && removeEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler); + } +}; + +/** + * create new input type manager + * called by the Manager constructor + * @param {Hammer} manager + * @returns {Input} + */ +function createInputInstance(manager) { + var Type; + var inputClass = manager.options.inputClass; + + if (inputClass) { + Type = inputClass; + } else if (SUPPORT_POINTER_EVENTS) { + Type = PointerEventInput; + } else if (SUPPORT_ONLY_TOUCH) { + Type = TouchInput; + } else if (!SUPPORT_TOUCH) { + Type = MouseInput; + } else { + Type = TouchMouseInput; + } + return new (Type)(manager, inputHandler); +} + +/** + * handle input events + * @param {Manager} manager + * @param {String} eventType + * @param {Object} input + */ +function inputHandler(manager, eventType, input) { + var pointersLen = input.pointers.length; + var changedPointersLen = input.changedPointers.length; + var isFirst = (eventType & INPUT_START && (pointersLen - changedPointersLen === 0)); + var isFinal = (eventType & (INPUT_END | INPUT_CANCEL) && (pointersLen - changedPointersLen === 0)); + + input.isFirst = !!isFirst; + input.isFinal = !!isFinal; + + if (isFirst) { + manager.session = {}; + } + + // source event is the normalized value of the domEvents + // like 'touchstart, mouseup, pointerdown' + input.eventType = eventType; + + // compute scale, rotation etc + computeInputData(manager, input); + + // emit secret event + manager.emit('hammer.input', input); + + manager.recognize(input); + manager.session.prevInput = input; +} + +/** + * extend the data with some usable properties like scale, rotate, velocity etc + * @param {Object} manager + * @param {Object} input + */ +function computeInputData(manager, input) { + var session = manager.session; + var pointers = input.pointers; + var pointersLength = pointers.length; + + // store the first input to calculate the distance and direction + if (!session.firstInput) { + session.firstInput = simpleCloneInputData(input); + } + + // to compute scale and rotation we need to store the multiple touches + if (pointersLength > 1 && !session.firstMultiple) { + session.firstMultiple = simpleCloneInputData(input); + } else if (pointersLength === 1) { + session.firstMultiple = false; + } + + var firstInput = session.firstInput; + var firstMultiple = session.firstMultiple; + var offsetCenter = firstMultiple ? firstMultiple.center : firstInput.center; + + var center = input.center = getCenter(pointers); + input.timeStamp = now(); + input.deltaTime = input.timeStamp - firstInput.timeStamp; + + input.angle = getAngle(offsetCenter, center); + input.distance = getDistance(offsetCenter, center); + + computeDeltaXY(session, input); + input.offsetDirection = getDirection(input.deltaX, input.deltaY); + + var overallVelocity = getVelocity(input.deltaTime, input.deltaX, input.deltaY); + input.overallVelocityX = overallVelocity.x; + input.overallVelocityY = overallVelocity.y; + input.overallVelocity = (abs(overallVelocity.x) > abs(overallVelocity.y)) ? overallVelocity.x : overallVelocity.y; + + input.scale = firstMultiple ? getScale(firstMultiple.pointers, pointers) : 1; + input.rotation = firstMultiple ? getRotation(firstMultiple.pointers, pointers) : 0; + + input.maxPointers = !session.prevInput ? input.pointers.length : ((input.pointers.length > + session.prevInput.maxPointers) ? input.pointers.length : session.prevInput.maxPointers); + + computeIntervalInputData(session, input); + + // find the correct target + var target = manager.element; + if (hasParent(input.srcEvent.target, target)) { + target = input.srcEvent.target; + } + input.target = target; +} + +function computeDeltaXY(session, input) { + var center = input.center; + var offset = session.offsetDelta || {}; + var prevDelta = session.prevDelta || {}; + var prevInput = session.prevInput || {}; + + if (input.eventType === INPUT_START || prevInput.eventType === INPUT_END) { + prevDelta = session.prevDelta = { + x: prevInput.deltaX || 0, + y: prevInput.deltaY || 0 + }; + + offset = session.offsetDelta = { + x: center.x, + y: center.y + }; + } + + input.deltaX = prevDelta.x + (center.x - offset.x); + input.deltaY = prevDelta.y + (center.y - offset.y); +} + +/** + * velocity is calculated every x ms + * @param {Object} session + * @param {Object} input + */ +function computeIntervalInputData(session, input) { + var last = session.lastInterval || input, + deltaTime = input.timeStamp - last.timeStamp, + velocity, velocityX, velocityY, direction; + + if (input.eventType != INPUT_CANCEL && (deltaTime > COMPUTE_INTERVAL || last.velocity === undefined)) { + var deltaX = input.deltaX - last.deltaX; + var deltaY = input.deltaY - last.deltaY; + + var v = getVelocity(deltaTime, deltaX, deltaY); + velocityX = v.x; + velocityY = v.y; + velocity = (abs(v.x) > abs(v.y)) ? v.x : v.y; + direction = getDirection(deltaX, deltaY); + + session.lastInterval = input; + } else { + // use latest velocity info if it doesn't overtake a minimum period + velocity = last.velocity; + velocityX = last.velocityX; + velocityY = last.velocityY; + direction = last.direction; + } + + input.velocity = velocity; + input.velocityX = velocityX; + input.velocityY = velocityY; + input.direction = direction; +} + +/** + * create a simple clone from the input used for storage of firstInput and firstMultiple + * @param {Object} input + * @returns {Object} clonedInputData + */ +function simpleCloneInputData(input) { + // make a simple copy of the pointers because we will get a reference if we don't + // we only need clientXY for the calculations + var pointers = []; + var i = 0; + while (i < input.pointers.length) { + pointers[i] = { + clientX: round(input.pointers[i].clientX), + clientY: round(input.pointers[i].clientY) + }; + i++; + } + + return { + timeStamp: now(), + pointers: pointers, + center: getCenter(pointers), + deltaX: input.deltaX, + deltaY: input.deltaY + }; +} + +/** + * get the center of all the pointers + * @param {Array} pointers + * @return {Object} center contains `x` and `y` properties + */ +function getCenter(pointers) { + var pointersLength = pointers.length; + + // no need to loop when only one touch + if (pointersLength === 1) { + return { + x: round(pointers[0].clientX), + y: round(pointers[0].clientY) + }; + } + + var x = 0, y = 0, i = 0; + while (i < pointersLength) { + x += pointers[i].clientX; + y += pointers[i].clientY; + i++; + } + + return { + x: round(x / pointersLength), + y: round(y / pointersLength) + }; +} + +/** + * calculate the velocity between two points. unit is in px per ms. + * @param {Number} deltaTime + * @param {Number} x + * @param {Number} y + * @return {Object} velocity `x` and `y` + */ +function getVelocity(deltaTime, x, y) { + return { + x: x / deltaTime || 0, + y: y / deltaTime || 0 + }; +} + +/** + * get the direction between two points + * @param {Number} x + * @param {Number} y + * @return {Number} direction + */ +function getDirection(x, y) { + if (x === y) { + return DIRECTION_NONE; + } + + if (abs(x) >= abs(y)) { + return x < 0 ? DIRECTION_LEFT : DIRECTION_RIGHT; + } + return y < 0 ? DIRECTION_UP : DIRECTION_DOWN; +} + +/** + * calculate the absolute distance between two points + * @param {Object} p1 {x, y} + * @param {Object} p2 {x, y} + * @param {Array} [props] containing x and y keys + * @return {Number} distance + */ +function getDistance(p1, p2, props) { + if (!props) { + props = PROPS_XY; + } + var x = p2[props[0]] - p1[props[0]], + y = p2[props[1]] - p1[props[1]]; + + return Math.sqrt((x * x) + (y * y)); +} + +/** + * calculate the angle between two coordinates + * @param {Object} p1 + * @param {Object} p2 + * @param {Array} [props] containing x and y keys + * @return {Number} angle + */ +function getAngle(p1, p2, props) { + if (!props) { + props = PROPS_XY; + } + var x = p2[props[0]] - p1[props[0]], + y = p2[props[1]] - p1[props[1]]; + return Math.atan2(y, x) * 180 / Math.PI; +} + +/** + * calculate the rotation degrees between two pointersets + * @param {Array} start array of pointers + * @param {Array} end array of pointers + * @return {Number} rotation + */ +function getRotation(start, end) { + return getAngle(end[1], end[0], PROPS_CLIENT_XY) + getAngle(start[1], start[0], PROPS_CLIENT_XY); +} + +/** + * calculate the scale factor between two pointersets + * no scale is 1, and goes down to 0 when pinched together, and bigger when pinched out + * @param {Array} start array of pointers + * @param {Array} end array of pointers + * @return {Number} scale + */ +function getScale(start, end) { + return getDistance(end[0], end[1], PROPS_CLIENT_XY) / getDistance(start[0], start[1], PROPS_CLIENT_XY); +} + +var MOUSE_INPUT_MAP = { + mousedown: INPUT_START, + mousemove: INPUT_MOVE, + mouseup: INPUT_END +}; + +var MOUSE_ELEMENT_EVENTS = 'mousedown'; +var MOUSE_WINDOW_EVENTS = 'mousemove mouseup'; + +/** + * Mouse events input + * @constructor + * @extends Input + */ +function MouseInput() { + this.evEl = MOUSE_ELEMENT_EVENTS; + this.evWin = MOUSE_WINDOW_EVENTS; + + this.pressed = false; // mousedown state + + Input.apply(this, arguments); +} + +inherit(MouseInput, Input, { + /** + * handle mouse events + * @param {Object} ev + */ + handler: function MEhandler(ev) { + var eventType = MOUSE_INPUT_MAP[ev.type]; + + // on start we want to have the left mouse button down + if (eventType & INPUT_START && ev.button === 0) { + this.pressed = true; + } + + if (eventType & INPUT_MOVE && ev.which !== 1) { + eventType = INPUT_END; + } + + // mouse must be down + if (!this.pressed) { + return; + } + + if (eventType & INPUT_END) { + this.pressed = false; + } + + this.callback(this.manager, eventType, { + pointers: [ev], + changedPointers: [ev], + pointerType: INPUT_TYPE_MOUSE, + srcEvent: ev + }); + } +}); + +var POINTER_INPUT_MAP = { + pointerdown: INPUT_START, + pointermove: INPUT_MOVE, + pointerup: INPUT_END, + pointercancel: INPUT_CANCEL, + pointerout: INPUT_CANCEL +}; + +// in IE10 the pointer types is defined as an enum +var IE10_POINTER_TYPE_ENUM = { + 2: INPUT_TYPE_TOUCH, + 3: INPUT_TYPE_PEN, + 4: INPUT_TYPE_MOUSE, + 5: INPUT_TYPE_KINECT // see https://twitter.com/jacobrossi/status/480596438489890816 +}; + +var POINTER_ELEMENT_EVENTS = 'pointerdown'; +var POINTER_WINDOW_EVENTS = 'pointermove pointerup pointercancel'; + +// IE10 has prefixed support, and case-sensitive +if (window.MSPointerEvent && !window.PointerEvent) { + POINTER_ELEMENT_EVENTS = 'MSPointerDown'; + POINTER_WINDOW_EVENTS = 'MSPointerMove MSPointerUp MSPointerCancel'; +} + +/** + * Pointer events input + * @constructor + * @extends Input + */ +function PointerEventInput() { + this.evEl = POINTER_ELEMENT_EVENTS; + this.evWin = POINTER_WINDOW_EVENTS; + + Input.apply(this, arguments); + + this.store = (this.manager.session.pointerEvents = []); +} + +inherit(PointerEventInput, Input, { + /** + * handle mouse events + * @param {Object} ev + */ + handler: function PEhandler(ev) { + var store = this.store; + var removePointer = false; + + var eventTypeNormalized = ev.type.toLowerCase().replace('ms', ''); + var eventType = POINTER_INPUT_MAP[eventTypeNormalized]; + var pointerType = IE10_POINTER_TYPE_ENUM[ev.pointerType] || ev.pointerType; + + var isTouch = (pointerType == INPUT_TYPE_TOUCH); + + // get index of the event in the store + var storeIndex = inArray(store, ev.pointerId, 'pointerId'); + + // start and mouse must be down + if (eventType & INPUT_START && (ev.button === 0 || isTouch)) { + if (storeIndex < 0) { + store.push(ev); + storeIndex = store.length - 1; + } + } else if (eventType & (INPUT_END | INPUT_CANCEL)) { + removePointer = true; + } + + // it not found, so the pointer hasn't been down (so it's probably a hover) + if (storeIndex < 0) { + return; + } + + // update the event in the store + store[storeIndex] = ev; + + this.callback(this.manager, eventType, { + pointers: store, + changedPointers: [ev], + pointerType: pointerType, + srcEvent: ev + }); + + if (removePointer) { + // remove from the store + store.splice(storeIndex, 1); + } + } +}); + +var SINGLE_TOUCH_INPUT_MAP = { + touchstart: INPUT_START, + touchmove: INPUT_MOVE, + touchend: INPUT_END, + touchcancel: INPUT_CANCEL +}; + +var SINGLE_TOUCH_TARGET_EVENTS = 'touchstart'; +var SINGLE_TOUCH_WINDOW_EVENTS = 'touchstart touchmove touchend touchcancel'; + +/** + * Touch events input + * @constructor + * @extends Input + */ +function SingleTouchInput() { + this.evTarget = SINGLE_TOUCH_TARGET_EVENTS; + this.evWin = SINGLE_TOUCH_WINDOW_EVENTS; + this.started = false; + + Input.apply(this, arguments); +} + +inherit(SingleTouchInput, Input, { + handler: function TEhandler(ev) { + var type = SINGLE_TOUCH_INPUT_MAP[ev.type]; + + // should we handle the touch events? + if (type === INPUT_START) { + this.started = true; + } + + if (!this.started) { + return; + } + + var touches = normalizeSingleTouches.call(this, ev, type); + + // when done, reset the started state + if (type & (INPUT_END | INPUT_CANCEL) && touches[0].length - touches[1].length === 0) { + this.started = false; + } + + this.callback(this.manager, type, { + pointers: touches[0], + changedPointers: touches[1], + pointerType: INPUT_TYPE_TOUCH, + srcEvent: ev + }); + } +}); + +/** + * @this {TouchInput} + * @param {Object} ev + * @param {Number} type flag + * @returns {undefined|Array} [all, changed] + */ +function normalizeSingleTouches(ev, type) { + var all = toArray(ev.touches); + var changed = toArray(ev.changedTouches); + + if (type & (INPUT_END | INPUT_CANCEL)) { + all = uniqueArray(all.concat(changed), 'identifier', true); + } + + return [all, changed]; +} + +var TOUCH_INPUT_MAP = { + touchstart: INPUT_START, + touchmove: INPUT_MOVE, + touchend: INPUT_END, + touchcancel: INPUT_CANCEL +}; + +var TOUCH_TARGET_EVENTS = 'touchstart touchmove touchend touchcancel'; + +/** + * Multi-user touch events input + * @constructor + * @extends Input + */ +function TouchInput() { + this.evTarget = TOUCH_TARGET_EVENTS; + this.targetIds = {}; + + Input.apply(this, arguments); +} + +inherit(TouchInput, Input, { + handler: function MTEhandler(ev) { + var type = TOUCH_INPUT_MAP[ev.type]; + var touches = getTouches.call(this, ev, type); + if (!touches) { + return; + } + + this.callback(this.manager, type, { + pointers: touches[0], + changedPointers: touches[1], + pointerType: INPUT_TYPE_TOUCH, + srcEvent: ev + }); + } +}); + +/** + * @this {TouchInput} + * @param {Object} ev + * @param {Number} type flag + * @returns {undefined|Array} [all, changed] + */ +function getTouches(ev, type) { + var allTouches = toArray(ev.touches); + var targetIds = this.targetIds; + + // when there is only one touch, the process can be simplified + if (type & (INPUT_START | INPUT_MOVE) && allTouches.length === 1) { + targetIds[allTouches[0].identifier] = true; + return [allTouches, allTouches]; + } + + var i, + targetTouches, + changedTouches = toArray(ev.changedTouches), + changedTargetTouches = [], + target = this.target; + + // get target touches from touches + targetTouches = allTouches.filter(function(touch) { + return hasParent(touch.target, target); + }); + + // collect touches + if (type === INPUT_START) { + i = 0; + while (i < targetTouches.length) { + targetIds[targetTouches[i].identifier] = true; + i++; + } + } + + // filter changed touches to only contain touches that exist in the collected target ids + i = 0; + while (i < changedTouches.length) { + if (targetIds[changedTouches[i].identifier]) { + changedTargetTouches.push(changedTouches[i]); + } + + // cleanup removed touches + if (type & (INPUT_END | INPUT_CANCEL)) { + delete targetIds[changedTouches[i].identifier]; + } + i++; + } + + if (!changedTargetTouches.length) { + return; + } + + return [ + // merge targetTouches with changedTargetTouches so it contains ALL touches, including 'end' and 'cancel' + uniqueArray(targetTouches.concat(changedTargetTouches), 'identifier', true), + changedTargetTouches + ]; +} + +/** + * Combined touch and mouse input + * + * Touch has a higher priority then mouse, and while touching no mouse events are allowed. + * This because touch devices also emit mouse events while doing a touch. + * + * @constructor + * @extends Input + */ + +var DEDUP_TIMEOUT = 2500; +var DEDUP_DISTANCE = 25; + +function TouchMouseInput() { + Input.apply(this, arguments); + + var handler = bindFn(this.handler, this); + this.touch = new TouchInput(this.manager, handler); + this.mouse = new MouseInput(this.manager, handler); + + this.primaryTouch = null; + this.lastTouches = []; +} + +inherit(TouchMouseInput, Input, { + /** + * handle mouse and touch events + * @param {Hammer} manager + * @param {String} inputEvent + * @param {Object} inputData + */ + handler: function TMEhandler(manager, inputEvent, inputData) { + var isTouch = (inputData.pointerType == INPUT_TYPE_TOUCH), + isMouse = (inputData.pointerType == INPUT_TYPE_MOUSE); + + if (isMouse && inputData.sourceCapabilities && inputData.sourceCapabilities.firesTouchEvents) { + return; + } + + // when we're in a touch event, record touches to de-dupe synthetic mouse event + if (isTouch) { + recordTouches.call(this, inputEvent, inputData); + } else if (isMouse && isSyntheticEvent.call(this, inputData)) { + return; + } + + this.callback(manager, inputEvent, inputData); + }, + + /** + * remove the event listeners + */ + destroy: function destroy() { + this.touch.destroy(); + this.mouse.destroy(); + } +}); + +function recordTouches(eventType, eventData) { + if (eventType & INPUT_START) { + this.primaryTouch = eventData.changedPointers[0].identifier; + setLastTouch.call(this, eventData); + } else if (eventType & (INPUT_END | INPUT_CANCEL)) { + setLastTouch.call(this, eventData); + } +} + +function setLastTouch(eventData) { + var touch = eventData.changedPointers[0]; + + if (touch.identifier === this.primaryTouch) { + var lastTouch = {x: touch.clientX, y: touch.clientY}; + this.lastTouches.push(lastTouch); + var lts = this.lastTouches; + var removeLastTouch = function() { + var i = lts.indexOf(lastTouch); + if (i > -1) { + lts.splice(i, 1); + } + }; + setTimeout(removeLastTouch, DEDUP_TIMEOUT); + } +} + +function isSyntheticEvent(eventData) { + var x = eventData.srcEvent.clientX, y = eventData.srcEvent.clientY; + for (var i = 0; i < this.lastTouches.length; i++) { + var t = this.lastTouches[i]; + var dx = Math.abs(x - t.x), dy = Math.abs(y - t.y); + if (dx <= DEDUP_DISTANCE && dy <= DEDUP_DISTANCE) { + return true; + } + } + return false; +} + +var PREFIXED_TOUCH_ACTION = prefixed(TEST_ELEMENT.style, 'touchAction'); +var NATIVE_TOUCH_ACTION = PREFIXED_TOUCH_ACTION !== undefined; + +// magical touchAction value +var TOUCH_ACTION_COMPUTE = 'compute'; +var TOUCH_ACTION_AUTO = 'auto'; +var TOUCH_ACTION_MANIPULATION = 'manipulation'; // not implemented +var TOUCH_ACTION_NONE = 'none'; +var TOUCH_ACTION_PAN_X = 'pan-x'; +var TOUCH_ACTION_PAN_Y = 'pan-y'; +var TOUCH_ACTION_MAP = getTouchActionProps(); + +/** + * Touch Action + * sets the touchAction property or uses the js alternative + * @param {Manager} manager + * @param {String} value + * @constructor + */ +function TouchAction(manager, value) { + this.manager = manager; + this.set(value); +} + +TouchAction.prototype = { + /** + * set the touchAction value on the element or enable the polyfill + * @param {String} value + */ + set: function(value) { + // find out the touch-action by the event handlers + if (value == TOUCH_ACTION_COMPUTE) { + value = this.compute(); + } + + if (NATIVE_TOUCH_ACTION && this.manager.element.style && TOUCH_ACTION_MAP[value]) { + this.manager.element.style[PREFIXED_TOUCH_ACTION] = value; + } + this.actions = value.toLowerCase().trim(); + }, + + /** + * just re-set the touchAction value + */ + update: function() { + this.set(this.manager.options.touchAction); + }, + + /** + * compute the value for the touchAction property based on the recognizer's settings + * @returns {String} value + */ + compute: function() { + var actions = []; + each(this.manager.recognizers, function(recognizer) { + if (boolOrFn(recognizer.options.enable, [recognizer])) { + actions = actions.concat(recognizer.getTouchAction()); + } + }); + return cleanTouchActions(actions.join(' ')); + }, + + /** + * this method is called on each input cycle and provides the preventing of the browser behavior + * @param {Object} input + */ + preventDefaults: function(input) { + var srcEvent = input.srcEvent; + var direction = input.offsetDirection; + + // if the touch action did prevented once this session + if (this.manager.session.prevented) { + srcEvent.preventDefault(); + return; + } + + var actions = this.actions; + var hasNone = inStr(actions, TOUCH_ACTION_NONE) && !TOUCH_ACTION_MAP[TOUCH_ACTION_NONE]; + var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_Y]; + var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_X]; + + if (hasNone) { + //do not prevent defaults if this is a tap gesture + + var isTapPointer = input.pointers.length === 1; + var isTapMovement = input.distance < 2; + var isTapTouchTime = input.deltaTime < 250; + + if (isTapPointer && isTapMovement && isTapTouchTime) { + return; + } + } + + if (hasPanX && hasPanY) { + // `pan-x pan-y` means browser handles all scrolling/panning, do not prevent + return; + } + + if (hasNone || + (hasPanY && direction & DIRECTION_HORIZONTAL) || + (hasPanX && direction & DIRECTION_VERTICAL)) { + return this.preventSrc(srcEvent); + } + }, + + /** + * call preventDefault to prevent the browser's default behavior (scrolling in most cases) + * @param {Object} srcEvent + */ + preventSrc: function(srcEvent) { + this.manager.session.prevented = true; + srcEvent.preventDefault(); + } +}; + +/** + * when the touchActions are collected they are not a valid value, so we need to clean things up. * + * @param {String} actions + * @returns {*} + */ +function cleanTouchActions(actions) { + // none + if (inStr(actions, TOUCH_ACTION_NONE)) { + return TOUCH_ACTION_NONE; + } + + var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X); + var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y); + + // if both pan-x and pan-y are set (different recognizers + // for different directions, e.g. horizontal pan but vertical swipe?) + // we need none (as otherwise with pan-x pan-y combined none of these + // recognizers will work, since the browser would handle all panning + if (hasPanX && hasPanY) { + return TOUCH_ACTION_NONE; + } + + // pan-x OR pan-y + if (hasPanX || hasPanY) { + return hasPanX ? TOUCH_ACTION_PAN_X : TOUCH_ACTION_PAN_Y; + } + + // manipulation + if (inStr(actions, TOUCH_ACTION_MANIPULATION)) { + return TOUCH_ACTION_MANIPULATION; + } + + return TOUCH_ACTION_AUTO; +} + +function getTouchActionProps() { + if (!NATIVE_TOUCH_ACTION) { + return false; + } + var touchMap = {}; + var cssSupports = window.CSS && window.CSS.supports; + ['auto', 'manipulation', 'pan-y', 'pan-x', 'pan-x pan-y', 'none'].forEach(function(val) { + + // If css.supports is not supported but there is native touch-action assume it supports + // all values. This is the case for IE 10 and 11. + touchMap[val] = cssSupports ? window.CSS.supports('touch-action', val) : true; + }); + return touchMap; +} + +/** + * Recognizer flow explained; * + * All recognizers have the initial state of POSSIBLE when a input session starts. + * The definition of a input session is from the first input until the last input, with all it's movement in it. * + * Example session for mouse-input: mousedown -> mousemove -> mouseup + * + * On each recognizing cycle (see Manager.recognize) the .recognize() method is executed + * which determines with state it should be. + * + * If the recognizer has the state FAILED, CANCELLED or RECOGNIZED (equals ENDED), it is reset to + * POSSIBLE to give it another change on the next cycle. + * + * Possible + * | + * +-----+---------------+ + * | | + * +-----+-----+ | + * | | | + * Failed Cancelled | + * +-------+------+ + * | | + * Recognized Began + * | + * Changed + * | + * Ended/Recognized + */ +var STATE_POSSIBLE = 1; +var STATE_BEGAN = 2; +var STATE_CHANGED = 4; +var STATE_ENDED = 8; +var STATE_RECOGNIZED = STATE_ENDED; +var STATE_CANCELLED = 16; +var STATE_FAILED = 32; + +/** + * Recognizer + * Every recognizer needs to extend from this class. + * @constructor + * @param {Object} options + */ +function Recognizer(options) { + this.options = assign({}, this.defaults, options || {}); + + this.id = uniqueId(); + + this.manager = null; + + // default is enable true + this.options.enable = ifUndefined(this.options.enable, true); + + this.state = STATE_POSSIBLE; + + this.simultaneous = {}; + this.requireFail = []; +} + +Recognizer.prototype = { + /** + * @virtual + * @type {Object} + */ + defaults: {}, + + /** + * set options + * @param {Object} options + * @return {Recognizer} + */ + set: function(options) { + assign(this.options, options); + + // also update the touchAction, in case something changed about the directions/enabled state + this.manager && this.manager.touchAction.update(); + return this; + }, + + /** + * recognize simultaneous with an other recognizer. + * @param {Recognizer} otherRecognizer + * @returns {Recognizer} this + */ + recognizeWith: function(otherRecognizer) { + if (invokeArrayArg(otherRecognizer, 'recognizeWith', this)) { + return this; + } + + var simultaneous = this.simultaneous; + otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this); + if (!simultaneous[otherRecognizer.id]) { + simultaneous[otherRecognizer.id] = otherRecognizer; + otherRecognizer.recognizeWith(this); + } + return this; + }, + + /** + * drop the simultaneous link. it doesnt remove the link on the other recognizer. + * @param {Recognizer} otherRecognizer + * @returns {Recognizer} this + */ + dropRecognizeWith: function(otherRecognizer) { + if (invokeArrayArg(otherRecognizer, 'dropRecognizeWith', this)) { + return this; + } + + otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this); + delete this.simultaneous[otherRecognizer.id]; + return this; + }, + + /** + * recognizer can only run when an other is failing + * @param {Recognizer} otherRecognizer + * @returns {Recognizer} this + */ + requireFailure: function(otherRecognizer) { + if (invokeArrayArg(otherRecognizer, 'requireFailure', this)) { + return this; + } + + var requireFail = this.requireFail; + otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this); + if (inArray(requireFail, otherRecognizer) === -1) { + requireFail.push(otherRecognizer); + otherRecognizer.requireFailure(this); + } + return this; + }, + + /** + * drop the requireFailure link. it does not remove the link on the other recognizer. + * @param {Recognizer} otherRecognizer + * @returns {Recognizer} this + */ + dropRequireFailure: function(otherRecognizer) { + if (invokeArrayArg(otherRecognizer, 'dropRequireFailure', this)) { + return this; + } + + otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this); + var index = inArray(this.requireFail, otherRecognizer); + if (index > -1) { + this.requireFail.splice(index, 1); + } + return this; + }, + + /** + * has require failures boolean + * @returns {boolean} + */ + hasRequireFailures: function() { + return this.requireFail.length > 0; + }, + + /** + * if the recognizer can recognize simultaneous with an other recognizer + * @param {Recognizer} otherRecognizer + * @returns {Boolean} + */ + canRecognizeWith: function(otherRecognizer) { + return !!this.simultaneous[otherRecognizer.id]; + }, + + /** + * You should use `tryEmit` instead of `emit` directly to check + * that all the needed recognizers has failed before emitting. + * @param {Object} input + */ + emit: function(input) { + var self = this; + var state = this.state; + + function emit(event) { + self.manager.emit(event, input); + } + + // 'panstart' and 'panmove' + if (state < STATE_ENDED) { + emit(self.options.event + stateStr(state)); + } + + emit(self.options.event); // simple 'eventName' events + + if (input.additionalEvent) { // additional event(panleft, panright, pinchin, pinchout...) + emit(input.additionalEvent); + } + + // panend and pancancel + if (state >= STATE_ENDED) { + emit(self.options.event + stateStr(state)); + } + }, + + /** + * Check that all the require failure recognizers has failed, + * if true, it emits a gesture event, + * otherwise, setup the state to FAILED. + * @param {Object} input + */ + tryEmit: function(input) { + if (this.canEmit()) { + return this.emit(input); + } + // it's failing anyway + this.state = STATE_FAILED; + }, + + /** + * can we emit? + * @returns {boolean} + */ + canEmit: function() { + var i = 0; + while (i < this.requireFail.length) { + if (!(this.requireFail[i].state & (STATE_FAILED | STATE_POSSIBLE))) { + return false; + } + i++; + } + return true; + }, + + /** + * update the recognizer + * @param {Object} inputData + */ + recognize: function(inputData) { + // make a new copy of the inputData + // so we can change the inputData without messing up the other recognizers + var inputDataClone = assign({}, inputData); + + // is is enabled and allow recognizing? + if (!boolOrFn(this.options.enable, [this, inputDataClone])) { + this.reset(); + this.state = STATE_FAILED; + return; + } + + // reset when we've reached the end + if (this.state & (STATE_RECOGNIZED | STATE_CANCELLED | STATE_FAILED)) { + this.state = STATE_POSSIBLE; + } + + this.state = this.process(inputDataClone); + + // the recognizer has recognized a gesture + // so trigger an event + if (this.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED | STATE_CANCELLED)) { + this.tryEmit(inputDataClone); + } + }, + + /** + * return the state of the recognizer + * the actual recognizing happens in this method + * @virtual + * @param {Object} inputData + * @returns {Const} STATE + */ + process: function(inputData) { }, // jshint ignore:line + + /** + * return the preferred touch-action + * @virtual + * @returns {Array} + */ + getTouchAction: function() { }, + + /** + * called when the gesture isn't allowed to recognize + * like when another is being recognized or it is disabled + * @virtual + */ + reset: function() { } +}; + +/** + * get a usable string, used as event postfix + * @param {Const} state + * @returns {String} state + */ +function stateStr(state) { + if (state & STATE_CANCELLED) { + return 'cancel'; + } else if (state & STATE_ENDED) { + return 'end'; + } else if (state & STATE_CHANGED) { + return 'move'; + } else if (state & STATE_BEGAN) { + return 'start'; + } + return ''; +} + +/** + * direction cons to string + * @param {Const} direction + * @returns {String} + */ +function directionStr(direction) { + if (direction == DIRECTION_DOWN) { + return 'down'; + } else if (direction == DIRECTION_UP) { + return 'up'; + } else if (direction == DIRECTION_LEFT) { + return 'left'; + } else if (direction == DIRECTION_RIGHT) { + return 'right'; + } + return ''; +} + +/** + * get a recognizer by name if it is bound to a manager + * @param {Recognizer|String} otherRecognizer + * @param {Recognizer} recognizer + * @returns {Recognizer} + */ +function getRecognizerByNameIfManager(otherRecognizer, recognizer) { + var manager = recognizer.manager; + if (manager) { + return manager.get(otherRecognizer); + } + return otherRecognizer; +} + +/** + * This recognizer is just used as a base for the simple attribute recognizers. + * @constructor + * @extends Recognizer + */ +function AttrRecognizer() { + Recognizer.apply(this, arguments); +} + +inherit(AttrRecognizer, Recognizer, { + /** + * @namespace + * @memberof AttrRecognizer + */ + defaults: { + /** + * @type {Number} + * @default 1 + */ + pointers: 1 + }, + + /** + * Used to check if it the recognizer receives valid input, like input.distance > 10. + * @memberof AttrRecognizer + * @param {Object} input + * @returns {Boolean} recognized + */ + attrTest: function(input) { + var optionPointers = this.options.pointers; + return optionPointers === 0 || input.pointers.length === optionPointers; + }, + + /** + * Process the input and return the state for the recognizer + * @memberof AttrRecognizer + * @param {Object} input + * @returns {*} State + */ + process: function(input) { + var state = this.state; + var eventType = input.eventType; + + var isRecognized = state & (STATE_BEGAN | STATE_CHANGED); + var isValid = this.attrTest(input); + + // on cancel input and we've recognized before, return STATE_CANCELLED + if (isRecognized && (eventType & INPUT_CANCEL || !isValid)) { + return state | STATE_CANCELLED; + } else if (isRecognized || isValid) { + if (eventType & INPUT_END) { + return state | STATE_ENDED; + } else if (!(state & STATE_BEGAN)) { + return STATE_BEGAN; + } + return state | STATE_CHANGED; + } + return STATE_FAILED; + } +}); + +/** + * Pan + * Recognized when the pointer is down and moved in the allowed direction. + * @constructor + * @extends AttrRecognizer + */ +function PanRecognizer() { + AttrRecognizer.apply(this, arguments); + + this.pX = null; + this.pY = null; +} + +inherit(PanRecognizer, AttrRecognizer, { + /** + * @namespace + * @memberof PanRecognizer + */ + defaults: { + event: 'pan', + threshold: 10, + pointers: 1, + direction: DIRECTION_ALL + }, + + getTouchAction: function() { + var direction = this.options.direction; + var actions = []; + if (direction & DIRECTION_HORIZONTAL) { + actions.push(TOUCH_ACTION_PAN_Y); + } + if (direction & DIRECTION_VERTICAL) { + actions.push(TOUCH_ACTION_PAN_X); + } + return actions; + }, + + directionTest: function(input) { + var options = this.options; + var hasMoved = true; + var distance = input.distance; + var direction = input.direction; + var x = input.deltaX; + var y = input.deltaY; + + // lock to axis? + if (!(direction & options.direction)) { + if (options.direction & DIRECTION_HORIZONTAL) { + direction = (x === 0) ? DIRECTION_NONE : (x < 0) ? DIRECTION_LEFT : DIRECTION_RIGHT; + hasMoved = x != this.pX; + distance = Math.abs(input.deltaX); + } else { + direction = (y === 0) ? DIRECTION_NONE : (y < 0) ? DIRECTION_UP : DIRECTION_DOWN; + hasMoved = y != this.pY; + distance = Math.abs(input.deltaY); + } + } + input.direction = direction; + return hasMoved && distance > options.threshold && direction & options.direction; + }, + + attrTest: function(input) { + return AttrRecognizer.prototype.attrTest.call(this, input) && + (this.state & STATE_BEGAN || (!(this.state & STATE_BEGAN) && this.directionTest(input))); + }, + + emit: function(input) { + + this.pX = input.deltaX; + this.pY = input.deltaY; + + var direction = directionStr(input.direction); + + if (direction) { + input.additionalEvent = this.options.event + direction; + } + this._super.emit.call(this, input); + } +}); + +/** + * Pinch + * Recognized when two or more pointers are moving toward (zoom-in) or away from each other (zoom-out). + * @constructor + * @extends AttrRecognizer + */ +function PinchRecognizer() { + AttrRecognizer.apply(this, arguments); +} + +inherit(PinchRecognizer, AttrRecognizer, { + /** + * @namespace + * @memberof PinchRecognizer + */ + defaults: { + event: 'pinch', + threshold: 0, + pointers: 2 + }, + + getTouchAction: function() { + return [TOUCH_ACTION_NONE]; + }, + + attrTest: function(input) { + return this._super.attrTest.call(this, input) && + (Math.abs(input.scale - 1) > this.options.threshold || this.state & STATE_BEGAN); + }, + + emit: function(input) { + if (input.scale !== 1) { + var inOut = input.scale < 1 ? 'in' : 'out'; + input.additionalEvent = this.options.event + inOut; + } + this._super.emit.call(this, input); + } +}); + +/** + * Press + * Recognized when the pointer is down for x ms without any movement. + * @constructor + * @extends Recognizer + */ +function PressRecognizer() { + Recognizer.apply(this, arguments); + + this._timer = null; + this._input = null; +} + +inherit(PressRecognizer, Recognizer, { + /** + * @namespace + * @memberof PressRecognizer + */ + defaults: { + event: 'press', + pointers: 1, + time: 251, // minimal time of the pointer to be pressed + threshold: 9 // a minimal movement is ok, but keep it low + }, + + getTouchAction: function() { + return [TOUCH_ACTION_AUTO]; + }, + + process: function(input) { + var options = this.options; + var validPointers = input.pointers.length === options.pointers; + var validMovement = input.distance < options.threshold; + var validTime = input.deltaTime > options.time; + + this._input = input; + + // we only allow little movement + // and we've reached an end event, so a tap is possible + if (!validMovement || !validPointers || (input.eventType & (INPUT_END | INPUT_CANCEL) && !validTime)) { + this.reset(); + } else if (input.eventType & INPUT_START) { + this.reset(); + this._timer = setTimeoutContext(function() { + this.state = STATE_RECOGNIZED; + this.tryEmit(); + }, options.time, this); + } else if (input.eventType & INPUT_END) { + return STATE_RECOGNIZED; + } + return STATE_FAILED; + }, + + reset: function() { + clearTimeout(this._timer); + }, + + emit: function(input) { + if (this.state !== STATE_RECOGNIZED) { + return; + } + + if (input && (input.eventType & INPUT_END)) { + this.manager.emit(this.options.event + 'up', input); + } else { + this._input.timeStamp = now(); + this.manager.emit(this.options.event, this._input); + } + } +}); + +/** + * Rotate + * Recognized when two or more pointer are moving in a circular motion. + * @constructor + * @extends AttrRecognizer + */ +function RotateRecognizer() { + AttrRecognizer.apply(this, arguments); +} + +inherit(RotateRecognizer, AttrRecognizer, { + /** + * @namespace + * @memberof RotateRecognizer + */ + defaults: { + event: 'rotate', + threshold: 0, + pointers: 2 + }, + + getTouchAction: function() { + return [TOUCH_ACTION_NONE]; + }, + + attrTest: function(input) { + return this._super.attrTest.call(this, input) && + (Math.abs(input.rotation) > this.options.threshold || this.state & STATE_BEGAN); + } +}); + +/** + * Swipe + * Recognized when the pointer is moving fast (velocity), with enough distance in the allowed direction. + * @constructor + * @extends AttrRecognizer + */ +function SwipeRecognizer() { + AttrRecognizer.apply(this, arguments); +} + +inherit(SwipeRecognizer, AttrRecognizer, { + /** + * @namespace + * @memberof SwipeRecognizer + */ + defaults: { + event: 'swipe', + threshold: 10, + velocity: 0.3, + direction: DIRECTION_HORIZONTAL | DIRECTION_VERTICAL, + pointers: 1 + }, + + getTouchAction: function() { + return PanRecognizer.prototype.getTouchAction.call(this); + }, + + attrTest: function(input) { + var direction = this.options.direction; + var velocity; + + if (direction & (DIRECTION_HORIZONTAL | DIRECTION_VERTICAL)) { + velocity = input.overallVelocity; + } else if (direction & DIRECTION_HORIZONTAL) { + velocity = input.overallVelocityX; + } else if (direction & DIRECTION_VERTICAL) { + velocity = input.overallVelocityY; + } + + return this._super.attrTest.call(this, input) && + direction & input.offsetDirection && + input.distance > this.options.threshold && + input.maxPointers == this.options.pointers && + abs(velocity) > this.options.velocity && input.eventType & INPUT_END; + }, + + emit: function(input) { + var direction = directionStr(input.offsetDirection); + if (direction) { + this.manager.emit(this.options.event + direction, input); + } + + this.manager.emit(this.options.event, input); + } +}); + +/** + * A tap is ecognized when the pointer is doing a small tap/click. Multiple taps are recognized if they occur + * between the given interval and position. The delay option can be used to recognize multi-taps without firing + * a single tap. + * + * The eventData from the emitted event contains the property `tapCount`, which contains the amount of + * multi-taps being recognized. + * @constructor + * @extends Recognizer + */ +function TapRecognizer() { + Recognizer.apply(this, arguments); + + // previous time and center, + // used for tap counting + this.pTime = false; + this.pCenter = false; + + this._timer = null; + this._input = null; + this.count = 0; +} + +inherit(TapRecognizer, Recognizer, { + /** + * @namespace + * @memberof PinchRecognizer + */ + defaults: { + event: 'tap', + pointers: 1, + taps: 1, + interval: 300, // max time between the multi-tap taps + time: 250, // max time of the pointer to be down (like finger on the screen) + threshold: 9, // a minimal movement is ok, but keep it low + posThreshold: 10 // a multi-tap can be a bit off the initial position + }, + + getTouchAction: function() { + return [TOUCH_ACTION_MANIPULATION]; + }, + + process: function(input) { + var options = this.options; + + var validPointers = input.pointers.length === options.pointers; + var validMovement = input.distance < options.threshold; + var validTouchTime = input.deltaTime < options.time; + + this.reset(); + + if ((input.eventType & INPUT_START) && (this.count === 0)) { + return this.failTimeout(); + } + + // we only allow little movement + // and we've reached an end event, so a tap is possible + if (validMovement && validTouchTime && validPointers) { + if (input.eventType != INPUT_END) { + return this.failTimeout(); + } + + var validInterval = this.pTime ? (input.timeStamp - this.pTime < options.interval) : true; + var validMultiTap = !this.pCenter || getDistance(this.pCenter, input.center) < options.posThreshold; + + this.pTime = input.timeStamp; + this.pCenter = input.center; + + if (!validMultiTap || !validInterval) { + this.count = 1; + } else { + this.count += 1; + } + + this._input = input; + + // if tap count matches we have recognized it, + // else it has began recognizing... + var tapCount = this.count % options.taps; + if (tapCount === 0) { + // no failing requirements, immediately trigger the tap event + // or wait as long as the multitap interval to trigger + if (!this.hasRequireFailures()) { + return STATE_RECOGNIZED; + } else { + this._timer = setTimeoutContext(function() { + this.state = STATE_RECOGNIZED; + this.tryEmit(); + }, options.interval, this); + return STATE_BEGAN; + } + } + } + return STATE_FAILED; + }, + + failTimeout: function() { + this._timer = setTimeoutContext(function() { + this.state = STATE_FAILED; + }, this.options.interval, this); + return STATE_FAILED; + }, + + reset: function() { + clearTimeout(this._timer); + }, + + emit: function() { + if (this.state == STATE_RECOGNIZED) { + this._input.tapCount = this.count; + this.manager.emit(this.options.event, this._input); + } + } +}); + +/** + * Simple way to create a manager with a default set of recognizers. + * @param {HTMLElement} element + * @param {Object} [options] + * @constructor + */ +function Hammer(element, options) { + options = options || {}; + options.recognizers = ifUndefined(options.recognizers, Hammer.defaults.preset); + return new Manager(element, options); +} + +/** + * @const {string} + */ +Hammer.VERSION = '2.0.7'; + +/** + * default settings + * @namespace + */ +Hammer.defaults = { + /** + * set if DOM events are being triggered. + * But this is slower and unused by simple implementations, so disabled by default. + * @type {Boolean} + * @default false + */ + domEvents: false, + + /** + * The value for the touchAction property/fallback. + * When set to `compute` it will magically set the correct value based on the added recognizers. + * @type {String} + * @default compute + */ + touchAction: TOUCH_ACTION_COMPUTE, + + /** + * @type {Boolean} + * @default true + */ + enable: true, + + /** + * EXPERIMENTAL FEATURE -- can be removed/changed + * Change the parent input target element. + * If Null, then it is being set the to main element. + * @type {Null|EventTarget} + * @default null + */ + inputTarget: null, + + /** + * force an input class + * @type {Null|Function} + * @default null + */ + inputClass: null, + + /** + * Default recognizer setup when calling `Hammer()` + * When creating a new Manager these will be skipped. + * @type {Array} + */ + preset: [ + // RecognizerClass, options, [recognizeWith, ...], [requireFailure, ...] + [RotateRecognizer, {enable: false}], + [PinchRecognizer, {enable: false}, ['rotate']], + [SwipeRecognizer, {direction: DIRECTION_HORIZONTAL}], + [PanRecognizer, {direction: DIRECTION_HORIZONTAL}, ['swipe']], + [TapRecognizer], + [TapRecognizer, {event: 'doubletap', taps: 2}, ['tap']], + [PressRecognizer] + ], + + /** + * Some CSS properties can be used to improve the working of Hammer. + * Add them to this method and they will be set when creating a new Manager. + * @namespace + */ + cssProps: { + /** + * Disables text selection to improve the dragging gesture. Mainly for desktop browsers. + * @type {String} + * @default 'none' + */ + userSelect: 'none', + + /** + * Disable the Windows Phone grippers when pressing an element. + * @type {String} + * @default 'none' + */ + touchSelect: 'none', + + /** + * Disables the default callout shown when you touch and hold a touch target. + * On iOS, when you touch and hold a touch target such as a link, Safari displays + * a callout containing information about the link. This property allows you to disable that callout. + * @type {String} + * @default 'none' + */ + touchCallout: 'none', + + /** + * Specifies whether zooming is enabled. Used by IE10> + * @type {String} + * @default 'none' + */ + contentZooming: 'none', + + /** + * Specifies that an entire element should be draggable instead of its contents. Mainly for desktop browsers. + * @type {String} + * @default 'none' + */ + userDrag: 'none', + + /** + * Overrides the highlight color shown when the user taps a link or a JavaScript + * clickable element in iOS. This property obeys the alpha value, if specified. + * @type {String} + * @default 'rgba(0,0,0,0)' + */ + tapHighlightColor: 'rgba(0,0,0,0)' + } +}; + +var STOP = 1; +var FORCED_STOP = 2; + +/** + * Manager + * @param {HTMLElement} element + * @param {Object} [options] + * @constructor + */ +function Manager(element, options) { + this.options = assign({}, Hammer.defaults, options || {}); + + this.options.inputTarget = this.options.inputTarget || element; + + this.handlers = {}; + this.session = {}; + this.recognizers = []; + this.oldCssProps = {}; + + this.element = element; + this.input = createInputInstance(this); + this.touchAction = new TouchAction(this, this.options.touchAction); + + toggleCssProps(this, true); + + each(this.options.recognizers, function(item) { + var recognizer = this.add(new (item[0])(item[1])); + item[2] && recognizer.recognizeWith(item[2]); + item[3] && recognizer.requireFailure(item[3]); + }, this); +} + +Manager.prototype = { + /** + * set options + * @param {Object} options + * @returns {Manager} + */ + set: function(options) { + assign(this.options, options); + + // Options that need a little more setup + if (options.touchAction) { + this.touchAction.update(); + } + if (options.inputTarget) { + // Clean up existing event listeners and reinitialize + this.input.destroy(); + this.input.target = options.inputTarget; + this.input.init(); + } + return this; + }, + + /** + * stop recognizing for this session. + * This session will be discarded, when a new [input]start event is fired. + * When forced, the recognizer cycle is stopped immediately. + * @param {Boolean} [force] + */ + stop: function(force) { + this.session.stopped = force ? FORCED_STOP : STOP; + }, + + /** + * run the recognizers! + * called by the inputHandler function on every movement of the pointers (touches) + * it walks through all the recognizers and tries to detect the gesture that is being made + * @param {Object} inputData + */ + recognize: function(inputData) { + var session = this.session; + if (session.stopped) { + return; + } + + // run the touch-action polyfill + this.touchAction.preventDefaults(inputData); + + var recognizer; + var recognizers = this.recognizers; + + // this holds the recognizer that is being recognized. + // so the recognizer's state needs to be BEGAN, CHANGED, ENDED or RECOGNIZED + // if no recognizer is detecting a thing, it is set to `null` + var curRecognizer = session.curRecognizer; + + // reset when the last recognizer is recognized + // or when we're in a new session + if (!curRecognizer || (curRecognizer && curRecognizer.state & STATE_RECOGNIZED)) { + curRecognizer = session.curRecognizer = null; + } + + var i = 0; + while (i < recognizers.length) { + recognizer = recognizers[i]; + + // find out if we are allowed try to recognize the input for this one. + // 1. allow if the session is NOT forced stopped (see the .stop() method) + // 2. allow if we still haven't recognized a gesture in this session, or the this recognizer is the one + // that is being recognized. + // 3. allow if the recognizer is allowed to run simultaneous with the current recognized recognizer. + // this can be setup with the `recognizeWith()` method on the recognizer. + if (session.stopped !== FORCED_STOP && ( // 1 + !curRecognizer || recognizer == curRecognizer || // 2 + recognizer.canRecognizeWith(curRecognizer))) { // 3 + recognizer.recognize(inputData); + } else { + recognizer.reset(); + } + + // if the recognizer has been recognizing the input as a valid gesture, we want to store this one as the + // current active recognizer. but only if we don't already have an active recognizer + if (!curRecognizer && recognizer.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED)) { + curRecognizer = session.curRecognizer = recognizer; + } + i++; + } + }, + + /** + * get a recognizer by its event name. + * @param {Recognizer|String} recognizer + * @returns {Recognizer|Null} + */ + get: function(recognizer) { + if (recognizer instanceof Recognizer) { + return recognizer; + } + + var recognizers = this.recognizers; + for (var i = 0; i < recognizers.length; i++) { + if (recognizers[i].options.event == recognizer) { + return recognizers[i]; + } + } + return null; + }, + + /** + * add a recognizer to the manager + * existing recognizers with the same event name will be removed + * @param {Recognizer} recognizer + * @returns {Recognizer|Manager} + */ + add: function(recognizer) { + if (invokeArrayArg(recognizer, 'add', this)) { + return this; + } + + // remove existing + var existing = this.get(recognizer.options.event); + if (existing) { + this.remove(existing); + } + + this.recognizers.push(recognizer); + recognizer.manager = this; + + this.touchAction.update(); + return recognizer; + }, + + /** + * remove a recognizer by name or instance + * @param {Recognizer|String} recognizer + * @returns {Manager} + */ + remove: function(recognizer) { + if (invokeArrayArg(recognizer, 'remove', this)) { + return this; + } + + recognizer = this.get(recognizer); + + // let's make sure this recognizer exists + if (recognizer) { + var recognizers = this.recognizers; + var index = inArray(recognizers, recognizer); + + if (index !== -1) { + recognizers.splice(index, 1); + this.touchAction.update(); + } + } + + return this; + }, + + /** + * bind event + * @param {String} events + * @param {Function} handler + * @returns {EventEmitter} this + */ + on: function(events, handler) { + if (events === undefined) { + return; + } + if (handler === undefined) { + return; + } + + var handlers = this.handlers; + each(splitStr(events), function(event) { + handlers[event] = handlers[event] || []; + handlers[event].push(handler); + }); + return this; + }, + + /** + * unbind event, leave emit blank to remove all handlers + * @param {String} events + * @param {Function} [handler] + * @returns {EventEmitter} this + */ + off: function(events, handler) { + if (events === undefined) { + return; + } + + var handlers = this.handlers; + each(splitStr(events), function(event) { + if (!handler) { + delete handlers[event]; + } else { + handlers[event] && handlers[event].splice(inArray(handlers[event], handler), 1); + } + }); + return this; + }, + + /** + * emit event to the listeners + * @param {String} event + * @param {Object} data + */ + emit: function(event, data) { + // we also want to trigger dom events + if (this.options.domEvents) { + triggerDomEvent(event, data); + } + + // no handlers, so skip it all + var handlers = this.handlers[event] && this.handlers[event].slice(); + if (!handlers || !handlers.length) { + return; + } + + data.type = event; + data.preventDefault = function() { + data.srcEvent.preventDefault(); + }; + + var i = 0; + while (i < handlers.length) { + handlers[i](data); + i++; + } + }, + + /** + * destroy the manager and unbinds all events + * it doesn't unbind dom events, that is the user own responsibility + */ + destroy: function() { + this.element && toggleCssProps(this, false); + + this.handlers = {}; + this.session = {}; + this.input.destroy(); + this.element = null; + } +}; + +/** + * add/remove the css properties as defined in manager.options.cssProps + * @param {Manager} manager + * @param {Boolean} add + */ +function toggleCssProps(manager, add) { + var element = manager.element; + if (!element.style) { + return; + } + var prop; + each(manager.options.cssProps, function(value, name) { + prop = prefixed(element.style, name); + if (add) { + manager.oldCssProps[prop] = element.style[prop]; + element.style[prop] = value; + } else { + element.style[prop] = manager.oldCssProps[prop] || ''; + } + }); + if (!add) { + manager.oldCssProps = {}; + } +} + +/** + * trigger dom event + * @param {String} event + * @param {Object} data + */ +function triggerDomEvent(event, data) { + var gestureEvent = document.createEvent('Event'); + gestureEvent.initEvent(event, true, true); + gestureEvent.gesture = data; + data.target.dispatchEvent(gestureEvent); +} + +assign(Hammer, { + INPUT_START: INPUT_START, + INPUT_MOVE: INPUT_MOVE, + INPUT_END: INPUT_END, + INPUT_CANCEL: INPUT_CANCEL, + + STATE_POSSIBLE: STATE_POSSIBLE, + STATE_BEGAN: STATE_BEGAN, + STATE_CHANGED: STATE_CHANGED, + STATE_ENDED: STATE_ENDED, + STATE_RECOGNIZED: STATE_RECOGNIZED, + STATE_CANCELLED: STATE_CANCELLED, + STATE_FAILED: STATE_FAILED, + + DIRECTION_NONE: DIRECTION_NONE, + DIRECTION_LEFT: DIRECTION_LEFT, + DIRECTION_RIGHT: DIRECTION_RIGHT, + DIRECTION_UP: DIRECTION_UP, + DIRECTION_DOWN: DIRECTION_DOWN, + DIRECTION_HORIZONTAL: DIRECTION_HORIZONTAL, + DIRECTION_VERTICAL: DIRECTION_VERTICAL, + DIRECTION_ALL: DIRECTION_ALL, + + Manager: Manager, + Input: Input, + TouchAction: TouchAction, + + TouchInput: TouchInput, + MouseInput: MouseInput, + PointerEventInput: PointerEventInput, + TouchMouseInput: TouchMouseInput, + SingleTouchInput: SingleTouchInput, + + Recognizer: Recognizer, + AttrRecognizer: AttrRecognizer, + Tap: TapRecognizer, + Pan: PanRecognizer, + Swipe: SwipeRecognizer, + Pinch: PinchRecognizer, + Rotate: RotateRecognizer, + Press: PressRecognizer, + + on: addEventListeners, + off: removeEventListeners, + each: each, + merge: merge, + extend: extend, + assign: assign, + inherit: inherit, + bindFn: bindFn, + prefixed: prefixed +}); + +// this prevents errors when Hammer is loaded in the presence of an AMD +// style loader but by script tag, not by the loader. +var freeGlobal = (typeof window !== 'undefined' ? window : (typeof self !== 'undefined' ? self : {})); // jshint ignore:line +freeGlobal.Hammer = Hammer; + +if (typeof define === 'function' && define.amd) { + define(function() { + return Hammer; + }); +} else if (typeof module != 'undefined' && module.exports) { + module.exports = Hammer; +} else { + window[exportName] = Hammer; +} + +})(window, document, 'Hammer'); diff --git a/node_modules/hammerjs/hammer.min.js b/node_modules/hammerjs/hammer.min.js new file mode 100644 index 0000000000000000000000000000000000000000..34a8c86fb4b4e6551a0fc8972cf1e38c06802c9b --- /dev/null +++ b/node_modules/hammerjs/hammer.min.js @@ -0,0 +1,7 @@ +/*! 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a=_(a,this),-1===r(b,a)&&(b.push(a),a.requireFailure(this)),this},dropRequireFailure:function(a){if(f(a,"dropRequireFailure",this))return this;a=_(a,this);var b=r(this.requireFail,a);return b>-1&&this.requireFail.splice(b,1),this},hasRequireFailures:function(){return this.requireFail.length>0},canRecognizeWith:function(a){return!!this.simultaneous[a.id]},emit:function(a){function b(b){c.manager.emit(b,a)}var c=this,d=this.state;qb>d&&b(c.options.event+Z(d)),b(c.options.event),a.additionalEvent&&b(a.additionalEvent),d>=qb&&b(c.options.event+Z(d))},tryEmit:function(a){return this.canEmit()?this.emit(a):void(this.state=tb)},canEmit:function(){for(var a=0;af?Ja:Ka,c=f!=this.pX,d=Math.abs(a.deltaX)):(e=0===g?Ia:0>g?La:Ma,c=g!=this.pY,d=Math.abs(a.deltaY))),a.direction=e,c&&d>b.threshold&&e&b.direction},attrTest:function(a){return aa.prototype.attrTest.call(this,a)&&(this.state&ob||!(this.state&ob)&&this.directionTest(a))},emit:function(a){this.pX=a.deltaX,this.pY=a.deltaY;var b=$(a.direction);b&&(a.additionalEvent=this.options.event+b),this._super.emit.call(this,a)}}),i(ca,aa,{defaults:{event:"pinch",threshold:0,pointers:2},getTouchAction:function(){return[jb]},attrTest:function(a){return this._super.attrTest.call(this,a)&&(Math.abs(a.scale-1)>this.options.threshold||this.state&ob)},emit:function(a){if(1!==a.scale){var b=a.scale<1?"in":"out";a.additionalEvent=this.options.event+b}this._super.emit.call(this,a)}}),i(da,Y,{defaults:{event:"press",pointers:1,time:251,threshold:9},getTouchAction:function(){return[hb]},process:function(a){var b=this.options,c=a.pointers.length===b.pointers,d=a.distanceb.time;if(this._input=a,!d||!c||a.eventType&(Ga|Ha)&&!f)this.reset();else if(a.eventType&Ea)this.reset(),this._timer=e(function(){this.state=rb,this.tryEmit()},b.time,this);else if(a.eventType&Ga)return rb;return tb},reset:function(){clearTimeout(this._timer)},emit:function(a){this.state===rb&&(a&&a.eventType&Ga?this.manager.emit(this.options.event+"up",a):(this._input.timeStamp=ra(),this.manager.emit(this.options.event,this._input)))}}),i(ea,aa,{defaults:{event:"rotate",threshold:0,pointers:2},getTouchAction:function(){return[jb]},attrTest:function(a){return this._super.attrTest.call(this,a)&&(Math.abs(a.rotation)>this.options.threshold||this.state&ob)}}),i(fa,aa,{defaults:{event:"swipe",threshold:10,velocity:.3,direction:Na|Oa,pointers:1},getTouchAction:function(){return ba.prototype.getTouchAction.call(this)},attrTest:function(a){var b,c=this.options.direction;return c&(Na|Oa)?b=a.overallVelocity:c&Na?b=a.overallVelocityX:c&Oa&&(b=a.overallVelocityY),this._super.attrTest.call(this,a)&&c&a.offsetDirection&&a.distance>this.options.threshold&&a.maxPointers==this.options.pointers&&qa(b)>this.options.velocity&&a.eventType&Ga},emit:function(a){var b=$(a.offsetDirection);b&&this.manager.emit(this.options.event+b,a),this.manager.emit(this.options.event,a)}}),i(ga,Y,{defaults:{event:"tap",pointers:1,taps:1,interval:300,time:250,threshold:9,posThreshold:10},getTouchAction:function(){return[ib]},process:function(a){var b=this.options,c=a.pointers.length===b.pointers,d=a.distance=0.8.0" + }, + "homepage": "http://hammerjs.github.io/", + "keywords": [ + "touch", + "gestures" + ], + "license": "MIT", + "main": "hammer.js", + "name": "hammerjs", + "repository": { + "type": "git", + "url": "git://github.com/hammerjs/hammer.js.git" + }, + "scripts": { + "test": "grunt test" + }, + "title": "Hammer.JS", + "version": "2.0.8" +} diff --git a/node_modules/hammerjs/src/expose.js b/node_modules/hammerjs/src/expose.js new file mode 100644 index 0000000000000000000000000000000000000000..1fe14db252b88c45753dac6e123a9b647bd4cfc6 --- /dev/null +++ b/node_modules/hammerjs/src/expose.js @@ -0,0 +1,67 @@ +assign(Hammer, { + INPUT_START: INPUT_START, + INPUT_MOVE: INPUT_MOVE, + INPUT_END: INPUT_END, + INPUT_CANCEL: INPUT_CANCEL, + + STATE_POSSIBLE: STATE_POSSIBLE, + STATE_BEGAN: STATE_BEGAN, + STATE_CHANGED: STATE_CHANGED, + STATE_ENDED: STATE_ENDED, + STATE_RECOGNIZED: STATE_RECOGNIZED, + STATE_CANCELLED: STATE_CANCELLED, + STATE_FAILED: STATE_FAILED, + + DIRECTION_NONE: DIRECTION_NONE, + DIRECTION_LEFT: DIRECTION_LEFT, + DIRECTION_RIGHT: DIRECTION_RIGHT, + DIRECTION_UP: DIRECTION_UP, + DIRECTION_DOWN: DIRECTION_DOWN, + DIRECTION_HORIZONTAL: DIRECTION_HORIZONTAL, + DIRECTION_VERTICAL: DIRECTION_VERTICAL, + DIRECTION_ALL: DIRECTION_ALL, + + Manager: Manager, + Input: Input, + TouchAction: TouchAction, + + TouchInput: TouchInput, + MouseInput: MouseInput, + PointerEventInput: PointerEventInput, + TouchMouseInput: TouchMouseInput, + SingleTouchInput: SingleTouchInput, + + Recognizer: Recognizer, + AttrRecognizer: AttrRecognizer, + Tap: TapRecognizer, + Pan: PanRecognizer, + Swipe: SwipeRecognizer, + Pinch: PinchRecognizer, + Rotate: RotateRecognizer, + Press: PressRecognizer, + + on: addEventListeners, + off: removeEventListeners, + each: each, + merge: merge, + extend: extend, + assign: assign, + inherit: inherit, + bindFn: bindFn, + prefixed: prefixed +}); + +// this prevents errors when Hammer is loaded in the presence of an AMD +// style loader but by script tag, not by the loader. +var freeGlobal = (typeof window !== 'undefined' ? window : (typeof self !== 'undefined' ? self : {})); // jshint ignore:line +freeGlobal.Hammer = Hammer; + +if (typeof define === 'function' && define.amd) { + define(function() { + return Hammer; + }); +} else if (typeof module != 'undefined' && module.exports) { + module.exports = Hammer; +} else { + window[exportName] = Hammer; +} diff --git a/node_modules/hammerjs/src/hammer.js b/node_modules/hammerjs/src/hammer.js new file mode 100644 index 0000000000000000000000000000000000000000..f3ace1f61eb3463326b963fc72f28aa77a13c299 --- /dev/null +++ b/node_modules/hammerjs/src/hammer.js @@ -0,0 +1,128 @@ +/** + * Simple way to create a manager with a default set of recognizers. + * @param {HTMLElement} element + * @param {Object} [options] + * @constructor + */ +function Hammer(element, options) { + options = options || {}; + options.recognizers = ifUndefined(options.recognizers, Hammer.defaults.preset); + return new Manager(element, options); +} + +/** + * @const {string} + */ +Hammer.VERSION = '{{PKG_VERSION}}'; + +/** + * default settings + * @namespace + */ +Hammer.defaults = { + /** + * set if DOM events are being triggered. + * But this is slower and unused by simple implementations, so disabled by default. + * @type {Boolean} + * @default false + */ + domEvents: false, + + /** + * The value for the touchAction property/fallback. + * When set to `compute` it will magically set the correct value based on the added recognizers. + * @type {String} + * @default compute + */ + touchAction: TOUCH_ACTION_COMPUTE, + + /** + * @type {Boolean} + * @default true + */ + enable: true, + + /** + * EXPERIMENTAL FEATURE -- can be removed/changed + * Change the parent input target element. + * If Null, then it is being set the to main element. + * @type {Null|EventTarget} + * @default null + */ + inputTarget: null, + + /** + * force an input class + * @type {Null|Function} + * @default null + */ + inputClass: null, + + /** + * Default recognizer setup when calling `Hammer()` + * When creating a new Manager these will be skipped. + * @type {Array} + */ + preset: [ + // RecognizerClass, options, [recognizeWith, ...], [requireFailure, ...] + [RotateRecognizer, {enable: false}], + [PinchRecognizer, {enable: false}, ['rotate']], + [SwipeRecognizer, {direction: DIRECTION_HORIZONTAL}], + [PanRecognizer, {direction: DIRECTION_HORIZONTAL}, ['swipe']], + [TapRecognizer], + [TapRecognizer, {event: 'doubletap', taps: 2}, ['tap']], + [PressRecognizer] + ], + + /** + * Some CSS properties can be used to improve the working of Hammer. + * Add them to this method and they will be set when creating a new Manager. + * @namespace + */ + cssProps: { + /** + * Disables text selection to improve the dragging gesture. Mainly for desktop browsers. + * @type {String} + * @default 'none' + */ + userSelect: 'none', + + /** + * Disable the Windows Phone grippers when pressing an element. + * @type {String} + * @default 'none' + */ + touchSelect: 'none', + + /** + * Disables the default callout shown when you touch and hold a touch target. + * On iOS, when you touch and hold a touch target such as a link, Safari displays + * a callout containing information about the link. This property allows you to disable that callout. + * @type {String} + * @default 'none' + */ + touchCallout: 'none', + + /** + * Specifies whether zooming is enabled. Used by IE10> + * @type {String} + * @default 'none' + */ + contentZooming: 'none', + + /** + * Specifies that an entire element should be draggable instead of its contents. Mainly for desktop browsers. + * @type {String} + * @default 'none' + */ + userDrag: 'none', + + /** + * Overrides the highlight color shown when the user taps a link or a JavaScript + * clickable element in iOS. This property obeys the alpha value, if specified. + * @type {String} + * @default 'rgba(0,0,0,0)' + */ + tapHighlightColor: 'rgba(0,0,0,0)' + } +}; diff --git a/node_modules/hammerjs/src/hammer.prefix.js b/node_modules/hammerjs/src/hammer.prefix.js new file mode 100644 index 0000000000000000000000000000000000000000..debc7fff278773424333da3ab765173ad713d981 --- /dev/null +++ b/node_modules/hammerjs/src/hammer.prefix.js @@ -0,0 +1,2 @@ +(function(window, document, exportName, undefined) { + 'use strict'; diff --git a/node_modules/hammerjs/src/hammer.suffix.js b/node_modules/hammerjs/src/hammer.suffix.js new file mode 100644 index 0000000000000000000000000000000000000000..41bfecfc2e0c93decef8c61665c82aba15975a75 --- /dev/null +++ b/node_modules/hammerjs/src/hammer.suffix.js @@ -0,0 +1 @@ +})(window, document, 'Hammer'); diff --git a/node_modules/hammerjs/src/input.js b/node_modules/hammerjs/src/input.js new file mode 100644 index 0000000000000000000000000000000000000000..e9601ca687698349eea16d1e719e64ef4367d64e --- /dev/null +++ b/node_modules/hammerjs/src/input.js @@ -0,0 +1,394 @@ +var MOBILE_REGEX = /mobile|tablet|ip(ad|hone|od)|android/i; + +var SUPPORT_TOUCH = ('ontouchstart' in window); +var SUPPORT_POINTER_EVENTS = prefixed(window, 'PointerEvent') !== undefined; +var SUPPORT_ONLY_TOUCH = SUPPORT_TOUCH && MOBILE_REGEX.test(navigator.userAgent); + +var INPUT_TYPE_TOUCH = 'touch'; +var INPUT_TYPE_PEN = 'pen'; +var INPUT_TYPE_MOUSE = 'mouse'; +var INPUT_TYPE_KINECT = 'kinect'; + +var COMPUTE_INTERVAL = 25; + +var INPUT_START = 1; +var INPUT_MOVE = 2; +var INPUT_END = 4; +var INPUT_CANCEL = 8; + +var DIRECTION_NONE = 1; +var DIRECTION_LEFT = 2; +var DIRECTION_RIGHT = 4; +var DIRECTION_UP = 8; +var DIRECTION_DOWN = 16; + +var DIRECTION_HORIZONTAL = DIRECTION_LEFT | DIRECTION_RIGHT; +var DIRECTION_VERTICAL = DIRECTION_UP | DIRECTION_DOWN; +var DIRECTION_ALL = DIRECTION_HORIZONTAL | DIRECTION_VERTICAL; + +var PROPS_XY = ['x', 'y']; +var PROPS_CLIENT_XY = ['clientX', 'clientY']; + +/** + * create new input type manager + * @param {Manager} manager + * @param {Function} callback + * @returns {Input} + * @constructor + */ +function Input(manager, callback) { + var self = this; + this.manager = manager; + this.callback = callback; + this.element = manager.element; + this.target = manager.options.inputTarget; + + // smaller wrapper around the handler, for the scope and the enabled state of the manager, + // so when disabled the input events are completely bypassed. + this.domHandler = function(ev) { + if (boolOrFn(manager.options.enable, [manager])) { + self.handler(ev); + } + }; + + this.init(); + +} + +Input.prototype = { + /** + * should handle the inputEvent data and trigger the callback + * @virtual + */ + handler: function() { }, + + /** + * bind the events + */ + init: function() { + this.evEl && addEventListeners(this.element, this.evEl, this.domHandler); + this.evTarget && addEventListeners(this.target, this.evTarget, this.domHandler); + this.evWin && addEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler); + }, + + /** + * unbind the events + */ + destroy: function() { + this.evEl && removeEventListeners(this.element, this.evEl, this.domHandler); + this.evTarget && removeEventListeners(this.target, this.evTarget, this.domHandler); + this.evWin && removeEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler); + } +}; + +/** + * create new input type manager + * called by the Manager constructor + * @param {Hammer} manager + * @returns {Input} + */ +function createInputInstance(manager) { + var Type; + var inputClass = manager.options.inputClass; + + if (inputClass) { + Type = inputClass; + } else if (SUPPORT_POINTER_EVENTS) { + Type = PointerEventInput; + } else if (SUPPORT_ONLY_TOUCH) { + Type = TouchInput; + } else if (!SUPPORT_TOUCH) { + Type = MouseInput; + } else { + Type = TouchMouseInput; + } + return new (Type)(manager, inputHandler); +} + +/** + * handle input events + * @param {Manager} manager + * @param {String} eventType + * @param {Object} input + */ +function inputHandler(manager, eventType, input) { + var pointersLen = input.pointers.length; + var changedPointersLen = input.changedPointers.length; + var isFirst = (eventType & INPUT_START && (pointersLen - changedPointersLen === 0)); + var isFinal = (eventType & (INPUT_END | INPUT_CANCEL) && (pointersLen - changedPointersLen === 0)); + + input.isFirst = !!isFirst; + input.isFinal = !!isFinal; + + if (isFirst) { + manager.session = {}; + } + + // source event is the normalized value of the domEvents + // like 'touchstart, mouseup, pointerdown' + input.eventType = eventType; + + // compute scale, rotation etc + computeInputData(manager, input); + + // emit secret event + manager.emit('hammer.input', input); + + manager.recognize(input); + manager.session.prevInput = input; +} + +/** + * extend the data with some usable properties like scale, rotate, velocity etc + * @param {Object} manager + * @param {Object} input + */ +function computeInputData(manager, input) { + var session = manager.session; + var pointers = input.pointers; + var pointersLength = pointers.length; + + // store the first input to calculate the distance and direction + if (!session.firstInput) { + session.firstInput = simpleCloneInputData(input); + } + + // to compute scale and rotation we need to store the multiple touches + if (pointersLength > 1 && !session.firstMultiple) { + session.firstMultiple = simpleCloneInputData(input); + } else if (pointersLength === 1) { + session.firstMultiple = false; + } + + var firstInput = session.firstInput; + var firstMultiple = session.firstMultiple; + var offsetCenter = firstMultiple ? firstMultiple.center : firstInput.center; + + var center = input.center = getCenter(pointers); + input.timeStamp = now(); + input.deltaTime = input.timeStamp - firstInput.timeStamp; + + input.angle = getAngle(offsetCenter, center); + input.distance = getDistance(offsetCenter, center); + + computeDeltaXY(session, input); + input.offsetDirection = getDirection(input.deltaX, input.deltaY); + + var overallVelocity = getVelocity(input.deltaTime, input.deltaX, input.deltaY); + input.overallVelocityX = overallVelocity.x; + input.overallVelocityY = overallVelocity.y; + input.overallVelocity = (abs(overallVelocity.x) > abs(overallVelocity.y)) ? overallVelocity.x : overallVelocity.y; + + input.scale = firstMultiple ? getScale(firstMultiple.pointers, pointers) : 1; + input.rotation = firstMultiple ? getRotation(firstMultiple.pointers, pointers) : 0; + + input.maxPointers = !session.prevInput ? input.pointers.length : ((input.pointers.length > + session.prevInput.maxPointers) ? input.pointers.length : session.prevInput.maxPointers); + + computeIntervalInputData(session, input); + + // find the correct target + var target = manager.element; + if (hasParent(input.srcEvent.target, target)) { + target = input.srcEvent.target; + } + input.target = target; +} + +function computeDeltaXY(session, input) { + var center = input.center; + var offset = session.offsetDelta || {}; + var prevDelta = session.prevDelta || {}; + var prevInput = session.prevInput || {}; + + if (input.eventType === INPUT_START || prevInput.eventType === INPUT_END) { + prevDelta = session.prevDelta = { + x: prevInput.deltaX || 0, + y: prevInput.deltaY || 0 + }; + + offset = session.offsetDelta = { + x: center.x, + y: center.y + }; + } + + input.deltaX = prevDelta.x + (center.x - offset.x); + input.deltaY = prevDelta.y + (center.y - offset.y); +} + +/** + * velocity is calculated every x ms + * @param {Object} session + * @param {Object} input + */ +function computeIntervalInputData(session, input) { + var last = session.lastInterval || input, + deltaTime = input.timeStamp - last.timeStamp, + velocity, velocityX, velocityY, direction; + + if (input.eventType != INPUT_CANCEL && (deltaTime > COMPUTE_INTERVAL || last.velocity === undefined)) { + var deltaX = input.deltaX - last.deltaX; + var deltaY = input.deltaY - last.deltaY; + + var v = getVelocity(deltaTime, deltaX, deltaY); + velocityX = v.x; + velocityY = v.y; + velocity = (abs(v.x) > abs(v.y)) ? v.x : v.y; + direction = getDirection(deltaX, deltaY); + + session.lastInterval = input; + } else { + // use latest velocity info if it doesn't overtake a minimum period + velocity = last.velocity; + velocityX = last.velocityX; + velocityY = last.velocityY; + direction = last.direction; + } + + input.velocity = velocity; + input.velocityX = velocityX; + input.velocityY = velocityY; + input.direction = direction; +} + +/** + * create a simple clone from the input used for storage of firstInput and firstMultiple + * @param {Object} input + * @returns {Object} clonedInputData + */ +function simpleCloneInputData(input) { + // make a simple copy of the pointers because we will get a reference if we don't + // we only need clientXY for the calculations + var pointers = []; + var i = 0; + while (i < input.pointers.length) { + pointers[i] = { + clientX: round(input.pointers[i].clientX), + clientY: round(input.pointers[i].clientY) + }; + i++; + } + + return { + timeStamp: now(), + pointers: pointers, + center: getCenter(pointers), + deltaX: input.deltaX, + deltaY: input.deltaY + }; +} + +/** + * get the center of all the pointers + * @param {Array} pointers + * @return {Object} center contains `x` and `y` properties + */ +function getCenter(pointers) { + var pointersLength = pointers.length; + + // no need to loop when only one touch + if (pointersLength === 1) { + return { + x: round(pointers[0].clientX), + y: round(pointers[0].clientY) + }; + } + + var x = 0, y = 0, i = 0; + while (i < pointersLength) { + x += pointers[i].clientX; + y += pointers[i].clientY; + i++; + } + + return { + x: round(x / pointersLength), + y: round(y / pointersLength) + }; +} + +/** + * calculate the velocity between two points. unit is in px per ms. + * @param {Number} deltaTime + * @param {Number} x + * @param {Number} y + * @return {Object} velocity `x` and `y` + */ +function getVelocity(deltaTime, x, y) { + return { + x: x / deltaTime || 0, + y: y / deltaTime || 0 + }; +} + +/** + * get the direction between two points + * @param {Number} x + * @param {Number} y + * @return {Number} direction + */ +function getDirection(x, y) { + if (x === y) { + return DIRECTION_NONE; + } + + if (abs(x) >= abs(y)) { + return x < 0 ? DIRECTION_LEFT : DIRECTION_RIGHT; + } + return y < 0 ? DIRECTION_UP : DIRECTION_DOWN; +} + +/** + * calculate the absolute distance between two points + * @param {Object} p1 {x, y} + * @param {Object} p2 {x, y} + * @param {Array} [props] containing x and y keys + * @return {Number} distance + */ +function getDistance(p1, p2, props) { + if (!props) { + props = PROPS_XY; + } + var x = p2[props[0]] - p1[props[0]], + y = p2[props[1]] - p1[props[1]]; + + return Math.sqrt((x * x) + (y * y)); +} + +/** + * calculate the angle between two coordinates + * @param {Object} p1 + * @param {Object} p2 + * @param {Array} [props] containing x and y keys + * @return {Number} angle + */ +function getAngle(p1, p2, props) { + if (!props) { + props = PROPS_XY; + } + var x = p2[props[0]] - p1[props[0]], + y = p2[props[1]] - p1[props[1]]; + return Math.atan2(y, x) * 180 / Math.PI; +} + +/** + * calculate the rotation degrees between two pointersets + * @param {Array} start array of pointers + * @param {Array} end array of pointers + * @return {Number} rotation + */ +function getRotation(start, end) { + return getAngle(end[1], end[0], PROPS_CLIENT_XY) + getAngle(start[1], start[0], PROPS_CLIENT_XY); +} + +/** + * calculate the scale factor between two pointersets + * no scale is 1, and goes down to 0 when pinched together, and bigger when pinched out + * @param {Array} start array of pointers + * @param {Array} end array of pointers + * @return {Number} scale + */ +function getScale(start, end) { + return getDistance(end[0], end[1], PROPS_CLIENT_XY) / getDistance(start[0], start[1], PROPS_CLIENT_XY); +} diff --git a/node_modules/hammerjs/src/input/mouse.js b/node_modules/hammerjs/src/input/mouse.js new file mode 100644 index 0000000000000000000000000000000000000000..6e27ef5ff035aa6cc94cc621680c021d1aea9edc --- /dev/null +++ b/node_modules/hammerjs/src/input/mouse.js @@ -0,0 +1,57 @@ +var MOUSE_INPUT_MAP = { + mousedown: INPUT_START, + mousemove: INPUT_MOVE, + mouseup: INPUT_END +}; + +var MOUSE_ELEMENT_EVENTS = 'mousedown'; +var MOUSE_WINDOW_EVENTS = 'mousemove mouseup'; + +/** + * Mouse events input + * @constructor + * @extends Input + */ +function MouseInput() { + this.evEl = MOUSE_ELEMENT_EVENTS; + this.evWin = MOUSE_WINDOW_EVENTS; + + this.pressed = false; // mousedown state + + Input.apply(this, arguments); +} + +inherit(MouseInput, Input, { + /** + * handle mouse events + * @param {Object} ev + */ + handler: function MEhandler(ev) { + var eventType = MOUSE_INPUT_MAP[ev.type]; + + // on start we want to have the left mouse button down + if (eventType & INPUT_START && ev.button === 0) { + this.pressed = true; + } + + if (eventType & INPUT_MOVE && ev.which !== 1) { + eventType = INPUT_END; + } + + // mouse must be down + if (!this.pressed) { + return; + } + + if (eventType & INPUT_END) { + this.pressed = false; + } + + this.callback(this.manager, eventType, { + pointers: [ev], + changedPointers: [ev], + pointerType: INPUT_TYPE_MOUSE, + srcEvent: ev + }); + } +}); diff --git a/node_modules/hammerjs/src/input/pointerevent.js b/node_modules/hammerjs/src/input/pointerevent.js new file mode 100644 index 0000000000000000000000000000000000000000..ec810b5fb9e18d1f70eb78040c5ed09a0ffc95e4 --- /dev/null +++ b/node_modules/hammerjs/src/input/pointerevent.js @@ -0,0 +1,88 @@ +var POINTER_INPUT_MAP = { + pointerdown: INPUT_START, + pointermove: INPUT_MOVE, + pointerup: INPUT_END, + pointercancel: INPUT_CANCEL, + pointerout: INPUT_CANCEL +}; + +// in IE10 the pointer types is defined as an enum +var IE10_POINTER_TYPE_ENUM = { + 2: INPUT_TYPE_TOUCH, + 3: INPUT_TYPE_PEN, + 4: INPUT_TYPE_MOUSE, + 5: INPUT_TYPE_KINECT // see https://twitter.com/jacobrossi/status/480596438489890816 +}; + +var POINTER_ELEMENT_EVENTS = 'pointerdown'; +var POINTER_WINDOW_EVENTS = 'pointermove pointerup pointercancel'; + +// IE10 has prefixed support, and case-sensitive +if (window.MSPointerEvent && !window.PointerEvent) { + POINTER_ELEMENT_EVENTS = 'MSPointerDown'; + POINTER_WINDOW_EVENTS = 'MSPointerMove MSPointerUp MSPointerCancel'; +} + +/** + * Pointer events input + * @constructor + * @extends Input + */ +function PointerEventInput() { + this.evEl = POINTER_ELEMENT_EVENTS; + this.evWin = POINTER_WINDOW_EVENTS; + + Input.apply(this, arguments); + + this.store = (this.manager.session.pointerEvents = []); +} + +inherit(PointerEventInput, Input, { + /** + * handle mouse events + * @param {Object} ev + */ + handler: function PEhandler(ev) { + var store = this.store; + var removePointer = false; + + var eventTypeNormalized = ev.type.toLowerCase().replace('ms', ''); + var eventType = POINTER_INPUT_MAP[eventTypeNormalized]; + var pointerType = IE10_POINTER_TYPE_ENUM[ev.pointerType] || ev.pointerType; + + var isTouch = (pointerType == INPUT_TYPE_TOUCH); + + // get index of the event in the store + var storeIndex = inArray(store, ev.pointerId, 'pointerId'); + + // start and mouse must be down + if (eventType & INPUT_START && (ev.button === 0 || isTouch)) { + if (storeIndex < 0) { + store.push(ev); + storeIndex = store.length - 1; + } + } else if (eventType & (INPUT_END | INPUT_CANCEL)) { + removePointer = true; + } + + // it not found, so the pointer hasn't been down (so it's probably a hover) + if (storeIndex < 0) { + return; + } + + // update the event in the store + store[storeIndex] = ev; + + this.callback(this.manager, eventType, { + pointers: store, + changedPointers: [ev], + pointerType: pointerType, + srcEvent: ev + }); + + if (removePointer) { + // remove from the store + store.splice(storeIndex, 1); + } + } +}); diff --git a/node_modules/hammerjs/src/input/singletouch.js b/node_modules/hammerjs/src/input/singletouch.js new file mode 100644 index 0000000000000000000000000000000000000000..cbe9ec086a38ddc3c82336b443e16138ed094d59 --- /dev/null +++ b/node_modules/hammerjs/src/input/singletouch.js @@ -0,0 +1,68 @@ +var SINGLE_TOUCH_INPUT_MAP = { + touchstart: INPUT_START, + touchmove: INPUT_MOVE, + touchend: INPUT_END, + touchcancel: INPUT_CANCEL +}; + +var SINGLE_TOUCH_TARGET_EVENTS = 'touchstart'; +var SINGLE_TOUCH_WINDOW_EVENTS = 'touchstart touchmove touchend touchcancel'; + +/** + * Touch events input + * @constructor + * @extends Input + */ +function SingleTouchInput() { + this.evTarget = SINGLE_TOUCH_TARGET_EVENTS; + this.evWin = SINGLE_TOUCH_WINDOW_EVENTS; + this.started = false; + + Input.apply(this, arguments); +} + +inherit(SingleTouchInput, Input, { + handler: function TEhandler(ev) { + var type = SINGLE_TOUCH_INPUT_MAP[ev.type]; + + // should we handle the touch events? + if (type === INPUT_START) { + this.started = true; + } + + if (!this.started) { + return; + } + + var touches = normalizeSingleTouches.call(this, ev, type); + + // when done, reset the started state + if (type & (INPUT_END | INPUT_CANCEL) && touches[0].length - touches[1].length === 0) { + this.started = false; + } + + this.callback(this.manager, type, { + pointers: touches[0], + changedPointers: touches[1], + pointerType: INPUT_TYPE_TOUCH, + srcEvent: ev + }); + } +}); + +/** + * @this {TouchInput} + * @param {Object} ev + * @param {Number} type flag + * @returns {undefined|Array} [all, changed] + */ +function normalizeSingleTouches(ev, type) { + var all = toArray(ev.touches); + var changed = toArray(ev.changedTouches); + + if (type & (INPUT_END | INPUT_CANCEL)) { + all = uniqueArray(all.concat(changed), 'identifier', true); + } + + return [all, changed]; +} diff --git a/node_modules/hammerjs/src/input/touch.js b/node_modules/hammerjs/src/input/touch.js new file mode 100644 index 0000000000000000000000000000000000000000..4ac2dd598829dfc3ee599724c32e812e1c2514d0 --- /dev/null +++ b/node_modules/hammerjs/src/input/touch.js @@ -0,0 +1,98 @@ +var TOUCH_INPUT_MAP = { + touchstart: INPUT_START, + touchmove: INPUT_MOVE, + touchend: INPUT_END, + touchcancel: INPUT_CANCEL +}; + +var TOUCH_TARGET_EVENTS = 'touchstart touchmove touchend touchcancel'; + +/** + * Multi-user touch events input + * @constructor + * @extends Input + */ +function TouchInput() { + this.evTarget = TOUCH_TARGET_EVENTS; + this.targetIds = {}; + + Input.apply(this, arguments); +} + +inherit(TouchInput, Input, { + handler: function MTEhandler(ev) { + var type = TOUCH_INPUT_MAP[ev.type]; + var touches = getTouches.call(this, ev, type); + if (!touches) { + return; + } + + this.callback(this.manager, type, { + pointers: touches[0], + changedPointers: touches[1], + pointerType: INPUT_TYPE_TOUCH, + srcEvent: ev + }); + } +}); + +/** + * @this {TouchInput} + * @param {Object} ev + * @param {Number} type flag + * @returns {undefined|Array} [all, changed] + */ +function getTouches(ev, type) { + var allTouches = toArray(ev.touches); + var targetIds = this.targetIds; + + // when there is only one touch, the process can be simplified + if (type & (INPUT_START | INPUT_MOVE) && allTouches.length === 1) { + targetIds[allTouches[0].identifier] = true; + return [allTouches, allTouches]; + } + + var i, + targetTouches, + changedTouches = toArray(ev.changedTouches), + changedTargetTouches = [], + target = this.target; + + // get target touches from touches + targetTouches = allTouches.filter(function(touch) { + return hasParent(touch.target, target); + }); + + // collect touches + if (type === INPUT_START) { + i = 0; + while (i < targetTouches.length) { + targetIds[targetTouches[i].identifier] = true; + i++; + } + } + + // filter changed touches to only contain touches that exist in the collected target ids + i = 0; + while (i < changedTouches.length) { + if (targetIds[changedTouches[i].identifier]) { + changedTargetTouches.push(changedTouches[i]); + } + + // cleanup removed touches + if (type & (INPUT_END | INPUT_CANCEL)) { + delete targetIds[changedTouches[i].identifier]; + } + i++; + } + + if (!changedTargetTouches.length) { + return; + } + + return [ + // merge targetTouches with changedTargetTouches so it contains ALL touches, including 'end' and 'cancel' + uniqueArray(targetTouches.concat(changedTargetTouches), 'identifier', true), + changedTargetTouches + ]; +} diff --git a/node_modules/hammerjs/src/input/touchmouse.js b/node_modules/hammerjs/src/input/touchmouse.js new file mode 100644 index 0000000000000000000000000000000000000000..b110d2397b80c2e17d5ed3a82c60ff32aabd7527 --- /dev/null +++ b/node_modules/hammerjs/src/input/touchmouse.js @@ -0,0 +1,95 @@ +/** + * Combined touch and mouse input + * + * Touch has a higher priority then mouse, and while touching no mouse events are allowed. + * This because touch devices also emit mouse events while doing a touch. + * + * @constructor + * @extends Input + */ + +var DEDUP_TIMEOUT = 2500; +var DEDUP_DISTANCE = 25; + +function TouchMouseInput() { + Input.apply(this, arguments); + + var handler = bindFn(this.handler, this); + this.touch = new TouchInput(this.manager, handler); + this.mouse = new MouseInput(this.manager, handler); + + this.primaryTouch = null; + this.lastTouches = []; +} + +inherit(TouchMouseInput, Input, { + /** + * handle mouse and touch events + * @param {Hammer} manager + * @param {String} inputEvent + * @param {Object} inputData + */ + handler: function TMEhandler(manager, inputEvent, inputData) { + var isTouch = (inputData.pointerType == INPUT_TYPE_TOUCH), + isMouse = (inputData.pointerType == INPUT_TYPE_MOUSE); + + if (isMouse && inputData.sourceCapabilities && inputData.sourceCapabilities.firesTouchEvents) { + return; + } + + // when we're in a touch event, record touches to de-dupe synthetic mouse event + if (isTouch) { + recordTouches.call(this, inputEvent, inputData); + } else if (isMouse && isSyntheticEvent.call(this, inputData)) { + return; + } + + this.callback(manager, inputEvent, inputData); + }, + + /** + * remove the event listeners + */ + destroy: function destroy() { + this.touch.destroy(); + this.mouse.destroy(); + } +}); + +function recordTouches(eventType, eventData) { + if (eventType & INPUT_START) { + this.primaryTouch = eventData.changedPointers[0].identifier; + setLastTouch.call(this, eventData); + } else if (eventType & (INPUT_END | INPUT_CANCEL)) { + setLastTouch.call(this, eventData); + } +} + +function setLastTouch(eventData) { + var touch = eventData.changedPointers[0]; + + if (touch.identifier === this.primaryTouch) { + var lastTouch = {x: touch.clientX, y: touch.clientY}; + this.lastTouches.push(lastTouch); + var lts = this.lastTouches; + var removeLastTouch = function() { + var i = lts.indexOf(lastTouch); + if (i > -1) { + lts.splice(i, 1); + } + }; + setTimeout(removeLastTouch, DEDUP_TIMEOUT); + } +} + +function isSyntheticEvent(eventData) { + var x = eventData.srcEvent.clientX, y = eventData.srcEvent.clientY; + for (var i = 0; i < this.lastTouches.length; i++) { + var t = this.lastTouches[i]; + var dx = Math.abs(x - t.x), dy = Math.abs(y - t.y); + if (dx <= DEDUP_DISTANCE && dy <= DEDUP_DISTANCE) { + return true; + } + } + return false; +} diff --git a/node_modules/hammerjs/src/manager.js b/node_modules/hammerjs/src/manager.js new file mode 100644 index 0000000000000000000000000000000000000000..5a5e97e4e6ca1b7a25c14a6cc84f6a09cc5d9a6b --- /dev/null +++ b/node_modules/hammerjs/src/manager.js @@ -0,0 +1,312 @@ +var STOP = 1; +var FORCED_STOP = 2; + +/** + * Manager + * @param {HTMLElement} element + * @param {Object} [options] + * @constructor + */ +function Manager(element, options) { + this.options = assign({}, Hammer.defaults, options || {}); + + this.options.inputTarget = this.options.inputTarget || element; + + this.handlers = {}; + this.session = {}; + this.recognizers = []; + this.oldCssProps = {}; + + this.element = element; + this.input = createInputInstance(this); + this.touchAction = new TouchAction(this, this.options.touchAction); + + toggleCssProps(this, true); + + each(this.options.recognizers, function(item) { + var recognizer = this.add(new (item[0])(item[1])); + item[2] && recognizer.recognizeWith(item[2]); + item[3] && recognizer.requireFailure(item[3]); + }, this); +} + +Manager.prototype = { + /** + * set options + * @param {Object} options + * @returns {Manager} + */ + set: function(options) { + assign(this.options, options); + + // Options that need a little more setup + if (options.touchAction) { + this.touchAction.update(); + } + if (options.inputTarget) { + // Clean up existing event listeners and reinitialize + this.input.destroy(); + this.input.target = options.inputTarget; + this.input.init(); + } + return this; + }, + + /** + * stop recognizing for this session. + * This session will be discarded, when a new [input]start event is fired. + * When forced, the recognizer cycle is stopped immediately. + * @param {Boolean} [force] + */ + stop: function(force) { + this.session.stopped = force ? FORCED_STOP : STOP; + }, + + /** + * run the recognizers! + * called by the inputHandler function on every movement of the pointers (touches) + * it walks through all the recognizers and tries to detect the gesture that is being made + * @param {Object} inputData + */ + recognize: function(inputData) { + var session = this.session; + if (session.stopped) { + return; + } + + // run the touch-action polyfill + this.touchAction.preventDefaults(inputData); + + var recognizer; + var recognizers = this.recognizers; + + // this holds the recognizer that is being recognized. + // so the recognizer's state needs to be BEGAN, CHANGED, ENDED or RECOGNIZED + // if no recognizer is detecting a thing, it is set to `null` + var curRecognizer = session.curRecognizer; + + // reset when the last recognizer is recognized + // or when we're in a new session + if (!curRecognizer || (curRecognizer && curRecognizer.state & STATE_RECOGNIZED)) { + curRecognizer = session.curRecognizer = null; + } + + var i = 0; + while (i < recognizers.length) { + recognizer = recognizers[i]; + + // find out if we are allowed try to recognize the input for this one. + // 1. allow if the session is NOT forced stopped (see the .stop() method) + // 2. allow if we still haven't recognized a gesture in this session, or the this recognizer is the one + // that is being recognized. + // 3. allow if the recognizer is allowed to run simultaneous with the current recognized recognizer. + // this can be setup with the `recognizeWith()` method on the recognizer. + if (session.stopped !== FORCED_STOP && ( // 1 + !curRecognizer || recognizer == curRecognizer || // 2 + recognizer.canRecognizeWith(curRecognizer))) { // 3 + recognizer.recognize(inputData); + } else { + recognizer.reset(); + } + + // if the recognizer has been recognizing the input as a valid gesture, we want to store this one as the + // current active recognizer. but only if we don't already have an active recognizer + if (!curRecognizer && recognizer.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED)) { + curRecognizer = session.curRecognizer = recognizer; + } + i++; + } + }, + + /** + * get a recognizer by its event name. + * @param {Recognizer|String} recognizer + * @returns {Recognizer|Null} + */ + get: function(recognizer) { + if (recognizer instanceof Recognizer) { + return recognizer; + } + + var recognizers = this.recognizers; + for (var i = 0; i < recognizers.length; i++) { + if (recognizers[i].options.event == recognizer) { + return recognizers[i]; + } + } + return null; + }, + + /** + * add a recognizer to the manager + * existing recognizers with the same event name will be removed + * @param {Recognizer} recognizer + * @returns {Recognizer|Manager} + */ + add: function(recognizer) { + if (invokeArrayArg(recognizer, 'add', this)) { + return this; + } + + // remove existing + var existing = this.get(recognizer.options.event); + if (existing) { + this.remove(existing); + } + + this.recognizers.push(recognizer); + recognizer.manager = this; + + this.touchAction.update(); + return recognizer; + }, + + /** + * remove a recognizer by name or instance + * @param {Recognizer|String} recognizer + * @returns {Manager} + */ + remove: function(recognizer) { + if (invokeArrayArg(recognizer, 'remove', this)) { + return this; + } + + recognizer = this.get(recognizer); + + // let's make sure this recognizer exists + if (recognizer) { + var recognizers = this.recognizers; + var index = inArray(recognizers, recognizer); + + if (index !== -1) { + recognizers.splice(index, 1); + this.touchAction.update(); + } + } + + return this; + }, + + /** + * bind event + * @param {String} events + * @param {Function} handler + * @returns {EventEmitter} this + */ + on: function(events, handler) { + if (events === undefined) { + return; + } + if (handler === undefined) { + return; + } + + var handlers = this.handlers; + each(splitStr(events), function(event) { + handlers[event] = handlers[event] || []; + handlers[event].push(handler); + }); + return this; + }, + + /** + * unbind event, leave emit blank to remove all handlers + * @param {String} events + * @param {Function} [handler] + * @returns {EventEmitter} this + */ + off: function(events, handler) { + if (events === undefined) { + return; + } + + var handlers = this.handlers; + each(splitStr(events), function(event) { + if (!handler) { + delete handlers[event]; + } else { + handlers[event] && handlers[event].splice(inArray(handlers[event], handler), 1); + } + }); + return this; + }, + + /** + * emit event to the listeners + * @param {String} event + * @param {Object} data + */ + emit: function(event, data) { + // we also want to trigger dom events + if (this.options.domEvents) { + triggerDomEvent(event, data); + } + + // no handlers, so skip it all + var handlers = this.handlers[event] && this.handlers[event].slice(); + if (!handlers || !handlers.length) { + return; + } + + data.type = event; + data.preventDefault = function() { + data.srcEvent.preventDefault(); + }; + + var i = 0; + while (i < handlers.length) { + handlers[i](data); + i++; + } + }, + + /** + * destroy the manager and unbinds all events + * it doesn't unbind dom events, that is the user own responsibility + */ + destroy: function() { + this.element && toggleCssProps(this, false); + + this.handlers = {}; + this.session = {}; + this.input.destroy(); + this.element = null; + } +}; + +/** + * add/remove the css properties as defined in manager.options.cssProps + * @param {Manager} manager + * @param {Boolean} add + */ +function toggleCssProps(manager, add) { + var element = manager.element; + if (!element.style) { + return; + } + var prop; + each(manager.options.cssProps, function(value, name) { + prop = prefixed(element.style, name); + if (add) { + manager.oldCssProps[prop] = element.style[prop]; + element.style[prop] = value; + } else { + element.style[prop] = manager.oldCssProps[prop] || ''; + } + }); + if (!add) { + manager.oldCssProps = {}; + } +} + +/** + * trigger dom event + * @param {String} event + * @param {Object} data + */ +function triggerDomEvent(event, data) { + var gestureEvent = document.createEvent('Event'); + gestureEvent.initEvent(event, true, true); + gestureEvent.gesture = data; + data.target.dispatchEvent(gestureEvent); +} diff --git a/node_modules/hammerjs/src/recognizer.js b/node_modules/hammerjs/src/recognizer.js new file mode 100644 index 0000000000000000000000000000000000000000..b0dd9fa0472911a3bbc80940d6b1d8fb045ab0ce --- /dev/null +++ b/node_modules/hammerjs/src/recognizer.js @@ -0,0 +1,327 @@ +/** + * Recognizer flow explained; * + * All recognizers have the initial state of POSSIBLE when a input session starts. + * The definition of a input session is from the first input until the last input, with all it's movement in it. * + * Example session for mouse-input: mousedown -> mousemove -> mouseup + * + * On each recognizing cycle (see Manager.recognize) the .recognize() method is executed + * which determines with state it should be. + * + * If the recognizer has the state FAILED, CANCELLED or RECOGNIZED (equals ENDED), it is reset to + * POSSIBLE to give it another change on the next cycle. + * + * Possible + * | + * +-----+---------------+ + * | | + * +-----+-----+ | + * | | | + * Failed Cancelled | + * +-------+------+ + * | | + * Recognized Began + * | + * Changed + * | + * Ended/Recognized + */ +var STATE_POSSIBLE = 1; +var STATE_BEGAN = 2; +var STATE_CHANGED = 4; +var STATE_ENDED = 8; +var STATE_RECOGNIZED = STATE_ENDED; +var STATE_CANCELLED = 16; +var STATE_FAILED = 32; + +/** + * Recognizer + * Every recognizer needs to extend from this class. + * @constructor + * @param {Object} options + */ +function Recognizer(options) { + this.options = assign({}, this.defaults, options || {}); + + this.id = uniqueId(); + + this.manager = null; + + // default is enable true + this.options.enable = ifUndefined(this.options.enable, true); + + this.state = STATE_POSSIBLE; + + this.simultaneous = {}; + this.requireFail = []; +} + +Recognizer.prototype = { + /** + * @virtual + * @type {Object} + */ + defaults: {}, + + /** + * set options + * @param {Object} options + * @return {Recognizer} + */ + set: function(options) { + assign(this.options, options); + + // also update the touchAction, in case something changed about the directions/enabled state + this.manager && this.manager.touchAction.update(); + return this; + }, + + /** + * recognize simultaneous with an other recognizer. + * @param {Recognizer} otherRecognizer + * @returns {Recognizer} this + */ + recognizeWith: function(otherRecognizer) { + if (invokeArrayArg(otherRecognizer, 'recognizeWith', this)) { + return this; + } + + var simultaneous = this.simultaneous; + otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this); + if (!simultaneous[otherRecognizer.id]) { + simultaneous[otherRecognizer.id] = otherRecognizer; + otherRecognizer.recognizeWith(this); + } + return this; + }, + + /** + * drop the simultaneous link. it doesnt remove the link on the other recognizer. + * @param {Recognizer} otherRecognizer + * @returns {Recognizer} this + */ + dropRecognizeWith: function(otherRecognizer) { + if (invokeArrayArg(otherRecognizer, 'dropRecognizeWith', this)) { + return this; + } + + otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this); + delete this.simultaneous[otherRecognizer.id]; + return this; + }, + + /** + * recognizer can only run when an other is failing + * @param {Recognizer} otherRecognizer + * @returns {Recognizer} this + */ + requireFailure: function(otherRecognizer) { + if (invokeArrayArg(otherRecognizer, 'requireFailure', this)) { + return this; + } + + var requireFail = this.requireFail; + otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this); + if (inArray(requireFail, otherRecognizer) === -1) { + requireFail.push(otherRecognizer); + otherRecognizer.requireFailure(this); + } + return this; + }, + + /** + * drop the requireFailure link. it does not remove the link on the other recognizer. + * @param {Recognizer} otherRecognizer + * @returns {Recognizer} this + */ + dropRequireFailure: function(otherRecognizer) { + if (invokeArrayArg(otherRecognizer, 'dropRequireFailure', this)) { + return this; + } + + otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this); + var index = inArray(this.requireFail, otherRecognizer); + if (index > -1) { + this.requireFail.splice(index, 1); + } + return this; + }, + + /** + * has require failures boolean + * @returns {boolean} + */ + hasRequireFailures: function() { + return this.requireFail.length > 0; + }, + + /** + * if the recognizer can recognize simultaneous with an other recognizer + * @param {Recognizer} otherRecognizer + * @returns {Boolean} + */ + canRecognizeWith: function(otherRecognizer) { + return !!this.simultaneous[otherRecognizer.id]; + }, + + /** + * You should use `tryEmit` instead of `emit` directly to check + * that all the needed recognizers has failed before emitting. + * @param {Object} input + */ + emit: function(input) { + var self = this; + var state = this.state; + + function emit(event) { + self.manager.emit(event, input); + } + + // 'panstart' and 'panmove' + if (state < STATE_ENDED) { + emit(self.options.event + stateStr(state)); + } + + emit(self.options.event); // simple 'eventName' events + + if (input.additionalEvent) { // additional event(panleft, panright, pinchin, pinchout...) + emit(input.additionalEvent); + } + + // panend and pancancel + if (state >= STATE_ENDED) { + emit(self.options.event + stateStr(state)); + } + }, + + /** + * Check that all the require failure recognizers has failed, + * if true, it emits a gesture event, + * otherwise, setup the state to FAILED. + * @param {Object} input + */ + tryEmit: function(input) { + if (this.canEmit()) { + return this.emit(input); + } + // it's failing anyway + this.state = STATE_FAILED; + }, + + /** + * can we emit? + * @returns {boolean} + */ + canEmit: function() { + var i = 0; + while (i < this.requireFail.length) { + if (!(this.requireFail[i].state & (STATE_FAILED | STATE_POSSIBLE))) { + return false; + } + i++; + } + return true; + }, + + /** + * update the recognizer + * @param {Object} inputData + */ + recognize: function(inputData) { + // make a new copy of the inputData + // so we can change the inputData without messing up the other recognizers + var inputDataClone = assign({}, inputData); + + // is is enabled and allow recognizing? + if (!boolOrFn(this.options.enable, [this, inputDataClone])) { + this.reset(); + this.state = STATE_FAILED; + return; + } + + // reset when we've reached the end + if (this.state & (STATE_RECOGNIZED | STATE_CANCELLED | STATE_FAILED)) { + this.state = STATE_POSSIBLE; + } + + this.state = this.process(inputDataClone); + + // the recognizer has recognized a gesture + // so trigger an event + if (this.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED | STATE_CANCELLED)) { + this.tryEmit(inputDataClone); + } + }, + + /** + * return the state of the recognizer + * the actual recognizing happens in this method + * @virtual + * @param {Object} inputData + * @returns {Const} STATE + */ + process: function(inputData) { }, // jshint ignore:line + + /** + * return the preferred touch-action + * @virtual + * @returns {Array} + */ + getTouchAction: function() { }, + + /** + * called when the gesture isn't allowed to recognize + * like when another is being recognized or it is disabled + * @virtual + */ + reset: function() { } +}; + +/** + * get a usable string, used as event postfix + * @param {Const} state + * @returns {String} state + */ +function stateStr(state) { + if (state & STATE_CANCELLED) { + return 'cancel'; + } else if (state & STATE_ENDED) { + return 'end'; + } else if (state & STATE_CHANGED) { + return 'move'; + } else if (state & STATE_BEGAN) { + return 'start'; + } + return ''; +} + +/** + * direction cons to string + * @param {Const} direction + * @returns {String} + */ +function directionStr(direction) { + if (direction == DIRECTION_DOWN) { + return 'down'; + } else if (direction == DIRECTION_UP) { + return 'up'; + } else if (direction == DIRECTION_LEFT) { + return 'left'; + } else if (direction == DIRECTION_RIGHT) { + return 'right'; + } + return ''; +} + +/** + * get a recognizer by name if it is bound to a manager + * @param {Recognizer|String} otherRecognizer + * @param {Recognizer} recognizer + * @returns {Recognizer} + */ +function getRecognizerByNameIfManager(otherRecognizer, recognizer) { + var manager = recognizer.manager; + if (manager) { + return manager.get(otherRecognizer); + } + return otherRecognizer; +} diff --git a/node_modules/hammerjs/src/recognizers/attribute.js b/node_modules/hammerjs/src/recognizers/attribute.js new file mode 100644 index 0000000000000000000000000000000000000000..0d7fff4c6e8ac075476f2ab1f88bce49836b9b42 --- /dev/null +++ b/node_modules/hammerjs/src/recognizers/attribute.js @@ -0,0 +1,60 @@ +/** + * This recognizer is just used as a base for the simple attribute recognizers. + * @constructor + * @extends Recognizer + */ +function AttrRecognizer() { + Recognizer.apply(this, arguments); +} + +inherit(AttrRecognizer, Recognizer, { + /** + * @namespace + * @memberof AttrRecognizer + */ + defaults: { + /** + * @type {Number} + * @default 1 + */ + pointers: 1 + }, + + /** + * Used to check if it the recognizer receives valid input, like input.distance > 10. + * @memberof AttrRecognizer + * @param {Object} input + * @returns {Boolean} recognized + */ + attrTest: function(input) { + var optionPointers = this.options.pointers; + return optionPointers === 0 || input.pointers.length === optionPointers; + }, + + /** + * Process the input and return the state for the recognizer + * @memberof AttrRecognizer + * @param {Object} input + * @returns {*} State + */ + process: function(input) { + var state = this.state; + var eventType = input.eventType; + + var isRecognized = state & (STATE_BEGAN | STATE_CHANGED); + var isValid = this.attrTest(input); + + // on cancel input and we've recognized before, return STATE_CANCELLED + if (isRecognized && (eventType & INPUT_CANCEL || !isValid)) { + return state | STATE_CANCELLED; + } else if (isRecognized || isValid) { + if (eventType & INPUT_END) { + return state | STATE_ENDED; + } else if (!(state & STATE_BEGAN)) { + return STATE_BEGAN; + } + return state | STATE_CHANGED; + } + return STATE_FAILED; + } +}); diff --git a/node_modules/hammerjs/src/recognizers/pan.js b/node_modules/hammerjs/src/recognizers/pan.js new file mode 100644 index 0000000000000000000000000000000000000000..8cc3398e4ea8e6a15538409201690b6171cbf8a2 --- /dev/null +++ b/node_modules/hammerjs/src/recognizers/pan.js @@ -0,0 +1,79 @@ +/** + * Pan + * Recognized when the pointer is down and moved in the allowed direction. + * @constructor + * @extends AttrRecognizer + */ +function PanRecognizer() { + AttrRecognizer.apply(this, arguments); + + this.pX = null; + this.pY = null; +} + +inherit(PanRecognizer, AttrRecognizer, { + /** + * @namespace + * @memberof PanRecognizer + */ + defaults: { + event: 'pan', + threshold: 10, + pointers: 1, + direction: DIRECTION_ALL + }, + + getTouchAction: function() { + var direction = this.options.direction; + var actions = []; + if (direction & DIRECTION_HORIZONTAL) { + actions.push(TOUCH_ACTION_PAN_Y); + } + if (direction & DIRECTION_VERTICAL) { + actions.push(TOUCH_ACTION_PAN_X); + } + return actions; + }, + + directionTest: function(input) { + var options = this.options; + var hasMoved = true; + var distance = input.distance; + var direction = input.direction; + var x = input.deltaX; + var y = input.deltaY; + + // lock to axis? + if (!(direction & options.direction)) { + if (options.direction & DIRECTION_HORIZONTAL) { + direction = (x === 0) ? DIRECTION_NONE : (x < 0) ? DIRECTION_LEFT : DIRECTION_RIGHT; + hasMoved = x != this.pX; + distance = Math.abs(input.deltaX); + } else { + direction = (y === 0) ? DIRECTION_NONE : (y < 0) ? DIRECTION_UP : DIRECTION_DOWN; + hasMoved = y != this.pY; + distance = Math.abs(input.deltaY); + } + } + input.direction = direction; + return hasMoved && distance > options.threshold && direction & options.direction; + }, + + attrTest: function(input) { + return AttrRecognizer.prototype.attrTest.call(this, input) && + (this.state & STATE_BEGAN || (!(this.state & STATE_BEGAN) && this.directionTest(input))); + }, + + emit: function(input) { + + this.pX = input.deltaX; + this.pY = input.deltaY; + + var direction = directionStr(input.direction); + + if (direction) { + input.additionalEvent = this.options.event + direction; + } + this._super.emit.call(this, input); + } +}); diff --git a/node_modules/hammerjs/src/recognizers/pinch.js b/node_modules/hammerjs/src/recognizers/pinch.js new file mode 100644 index 0000000000000000000000000000000000000000..cc19b3075df67ecebb44887f60a61ed4532f13dd --- /dev/null +++ b/node_modules/hammerjs/src/recognizers/pinch.js @@ -0,0 +1,38 @@ +/** + * Pinch + * Recognized when two or more pointers are moving toward (zoom-in) or away from each other (zoom-out). + * @constructor + * @extends AttrRecognizer + */ +function PinchRecognizer() { + AttrRecognizer.apply(this, arguments); +} + +inherit(PinchRecognizer, AttrRecognizer, { + /** + * @namespace + * @memberof PinchRecognizer + */ + defaults: { + event: 'pinch', + threshold: 0, + pointers: 2 + }, + + getTouchAction: function() { + return [TOUCH_ACTION_NONE]; + }, + + attrTest: function(input) { + return this._super.attrTest.call(this, input) && + (Math.abs(input.scale - 1) > this.options.threshold || this.state & STATE_BEGAN); + }, + + emit: function(input) { + if (input.scale !== 1) { + var inOut = input.scale < 1 ? 'in' : 'out'; + input.additionalEvent = this.options.event + inOut; + } + this._super.emit.call(this, input); + } +}); diff --git a/node_modules/hammerjs/src/recognizers/press.js b/node_modules/hammerjs/src/recognizers/press.js new file mode 100644 index 0000000000000000000000000000000000000000..d52f830cf36aec62d39e8e858b8937984794b44e --- /dev/null +++ b/node_modules/hammerjs/src/recognizers/press.js @@ -0,0 +1,70 @@ +/** + * Press + * Recognized when the pointer is down for x ms without any movement. + * @constructor + * @extends Recognizer + */ +function PressRecognizer() { + Recognizer.apply(this, arguments); + + this._timer = null; + this._input = null; +} + +inherit(PressRecognizer, Recognizer, { + /** + * @namespace + * @memberof PressRecognizer + */ + defaults: { + event: 'press', + pointers: 1, + time: 251, // minimal time of the pointer to be pressed + threshold: 9 // a minimal movement is ok, but keep it low + }, + + getTouchAction: function() { + return [TOUCH_ACTION_AUTO]; + }, + + process: function(input) { + var options = this.options; + var validPointers = input.pointers.length === options.pointers; + var validMovement = input.distance < options.threshold; + var validTime = input.deltaTime > options.time; + + this._input = input; + + // we only allow little movement + // and we've reached an end event, so a tap is possible + if (!validMovement || !validPointers || (input.eventType & (INPUT_END | INPUT_CANCEL) && !validTime)) { + this.reset(); + } else if (input.eventType & INPUT_START) { + this.reset(); + this._timer = setTimeoutContext(function() { + this.state = STATE_RECOGNIZED; + this.tryEmit(); + }, options.time, this); + } else if (input.eventType & INPUT_END) { + return STATE_RECOGNIZED; + } + return STATE_FAILED; + }, + + reset: function() { + clearTimeout(this._timer); + }, + + emit: function(input) { + if (this.state !== STATE_RECOGNIZED) { + return; + } + + if (input && (input.eventType & INPUT_END)) { + this.manager.emit(this.options.event + 'up', input); + } else { + this._input.timeStamp = now(); + this.manager.emit(this.options.event, this._input); + } + } +}); diff --git a/node_modules/hammerjs/src/recognizers/rotate.js b/node_modules/hammerjs/src/recognizers/rotate.js new file mode 100644 index 0000000000000000000000000000000000000000..2079824060674e7524ed65782eecdec012b49444 --- /dev/null +++ b/node_modules/hammerjs/src/recognizers/rotate.js @@ -0,0 +1,30 @@ +/** + * Rotate + * Recognized when two or more pointer are moving in a circular motion. + * @constructor + * @extends AttrRecognizer + */ +function RotateRecognizer() { + AttrRecognizer.apply(this, arguments); +} + +inherit(RotateRecognizer, AttrRecognizer, { + /** + * @namespace + * @memberof RotateRecognizer + */ + defaults: { + event: 'rotate', + threshold: 0, + pointers: 2 + }, + + getTouchAction: function() { + return [TOUCH_ACTION_NONE]; + }, + + attrTest: function(input) { + return this._super.attrTest.call(this, input) && + (Math.abs(input.rotation) > this.options.threshold || this.state & STATE_BEGAN); + } +}); diff --git a/node_modules/hammerjs/src/recognizers/swipe.js b/node_modules/hammerjs/src/recognizers/swipe.js new file mode 100644 index 0000000000000000000000000000000000000000..fb3d66c77fa9701aafd137d0c4af892df42f34b4 --- /dev/null +++ b/node_modules/hammerjs/src/recognizers/swipe.js @@ -0,0 +1,55 @@ +/** + * Swipe + * Recognized when the pointer is moving fast (velocity), with enough distance in the allowed direction. + * @constructor + * @extends AttrRecognizer + */ +function SwipeRecognizer() { + AttrRecognizer.apply(this, arguments); +} + +inherit(SwipeRecognizer, AttrRecognizer, { + /** + * @namespace + * @memberof SwipeRecognizer + */ + defaults: { + event: 'swipe', + threshold: 10, + velocity: 0.3, + direction: DIRECTION_HORIZONTAL | DIRECTION_VERTICAL, + pointers: 1 + }, + + getTouchAction: function() { + return PanRecognizer.prototype.getTouchAction.call(this); + }, + + attrTest: function(input) { + var direction = this.options.direction; + var velocity; + + if (direction & (DIRECTION_HORIZONTAL | DIRECTION_VERTICAL)) { + velocity = input.overallVelocity; + } else if (direction & DIRECTION_HORIZONTAL) { + velocity = input.overallVelocityX; + } else if (direction & DIRECTION_VERTICAL) { + velocity = input.overallVelocityY; + } + + return this._super.attrTest.call(this, input) && + direction & input.offsetDirection && + input.distance > this.options.threshold && + input.maxPointers == this.options.pointers && + abs(velocity) > this.options.velocity && input.eventType & INPUT_END; + }, + + emit: function(input) { + var direction = directionStr(input.offsetDirection); + if (direction) { + this.manager.emit(this.options.event + direction, input); + } + + this.manager.emit(this.options.event, input); + } +}); diff --git a/node_modules/hammerjs/src/recognizers/tap.js b/node_modules/hammerjs/src/recognizers/tap.js new file mode 100644 index 0000000000000000000000000000000000000000..072d45c94613f3211e5620a118fc7613a559b54f --- /dev/null +++ b/node_modules/hammerjs/src/recognizers/tap.js @@ -0,0 +1,114 @@ +/** + * A tap is ecognized when the pointer is doing a small tap/click. Multiple taps are recognized if they occur + * between the given interval and position. The delay option can be used to recognize multi-taps without firing + * a single tap. + * + * The eventData from the emitted event contains the property `tapCount`, which contains the amount of + * multi-taps being recognized. + * @constructor + * @extends Recognizer + */ +function TapRecognizer() { + Recognizer.apply(this, arguments); + + // previous time and center, + // used for tap counting + this.pTime = false; + this.pCenter = false; + + this._timer = null; + this._input = null; + this.count = 0; +} + +inherit(TapRecognizer, Recognizer, { + /** + * @namespace + * @memberof PinchRecognizer + */ + defaults: { + event: 'tap', + pointers: 1, + taps: 1, + interval: 300, // max time between the multi-tap taps + time: 250, // max time of the pointer to be down (like finger on the screen) + threshold: 9, // a minimal movement is ok, but keep it low + posThreshold: 10 // a multi-tap can be a bit off the initial position + }, + + getTouchAction: function() { + return [TOUCH_ACTION_MANIPULATION]; + }, + + process: function(input) { + var options = this.options; + + var validPointers = input.pointers.length === options.pointers; + var validMovement = input.distance < options.threshold; + var validTouchTime = input.deltaTime < options.time; + + this.reset(); + + if ((input.eventType & INPUT_START) && (this.count === 0)) { + return this.failTimeout(); + } + + // we only allow little movement + // and we've reached an end event, so a tap is possible + if (validMovement && validTouchTime && validPointers) { + if (input.eventType != INPUT_END) { + return this.failTimeout(); + } + + var validInterval = this.pTime ? (input.timeStamp - this.pTime < options.interval) : true; + var validMultiTap = !this.pCenter || getDistance(this.pCenter, input.center) < options.posThreshold; + + this.pTime = input.timeStamp; + this.pCenter = input.center; + + if (!validMultiTap || !validInterval) { + this.count = 1; + } else { + this.count += 1; + } + + this._input = input; + + // if tap count matches we have recognized it, + // else it has began recognizing... + var tapCount = this.count % options.taps; + if (tapCount === 0) { + // no failing requirements, immediately trigger the tap event + // or wait as long as the multitap interval to trigger + if (!this.hasRequireFailures()) { + return STATE_RECOGNIZED; + } else { + this._timer = setTimeoutContext(function() { + this.state = STATE_RECOGNIZED; + this.tryEmit(); + }, options.interval, this); + return STATE_BEGAN; + } + } + } + return STATE_FAILED; + }, + + failTimeout: function() { + this._timer = setTimeoutContext(function() { + this.state = STATE_FAILED; + }, this.options.interval, this); + return STATE_FAILED; + }, + + reset: function() { + clearTimeout(this._timer); + }, + + emit: function() { + if (this.state == STATE_RECOGNIZED) { + this._input.tapCount = this.count; + this.manager.emit(this.options.event, this._input); + } + } +}); diff --git a/node_modules/hammerjs/src/touchaction.js b/node_modules/hammerjs/src/touchaction.js new file mode 100644 index 0000000000000000000000000000000000000000..55609012b187b5e016aacd4748c8a94a00341c11 --- /dev/null +++ b/node_modules/hammerjs/src/touchaction.js @@ -0,0 +1,164 @@ +var PREFIXED_TOUCH_ACTION = prefixed(TEST_ELEMENT.style, 'touchAction'); +var NATIVE_TOUCH_ACTION = PREFIXED_TOUCH_ACTION !== undefined; + +// magical touchAction value +var TOUCH_ACTION_COMPUTE = 'compute'; +var TOUCH_ACTION_AUTO = 'auto'; +var TOUCH_ACTION_MANIPULATION = 'manipulation'; // not implemented +var TOUCH_ACTION_NONE = 'none'; +var TOUCH_ACTION_PAN_X = 'pan-x'; +var TOUCH_ACTION_PAN_Y = 'pan-y'; +var TOUCH_ACTION_MAP = getTouchActionProps(); + +/** + * Touch Action + * sets the touchAction property or uses the js alternative + * @param {Manager} manager + * @param {String} value + * @constructor + */ +function TouchAction(manager, value) { + this.manager = manager; + this.set(value); +} + +TouchAction.prototype = { + /** + * set the touchAction value on the element or enable the polyfill + * @param {String} value + */ + set: function(value) { + // find out the touch-action by the event handlers + if (value == TOUCH_ACTION_COMPUTE) { + value = this.compute(); + } + + if (NATIVE_TOUCH_ACTION && this.manager.element.style && TOUCH_ACTION_MAP[value]) { + this.manager.element.style[PREFIXED_TOUCH_ACTION] = value; + } + this.actions = value.toLowerCase().trim(); + }, + + /** + * just re-set the touchAction value + */ + update: function() { + this.set(this.manager.options.touchAction); + }, + + /** + * compute the value for the touchAction property based on the recognizer's settings + * @returns {String} value + */ + compute: function() { + var actions = []; + each(this.manager.recognizers, function(recognizer) { + if (boolOrFn(recognizer.options.enable, [recognizer])) { + actions = actions.concat(recognizer.getTouchAction()); + } + }); + return cleanTouchActions(actions.join(' ')); + }, + + /** + * this method is called on each input cycle and provides the preventing of the browser behavior + * @param {Object} input + */ + preventDefaults: function(input) { + var srcEvent = input.srcEvent; + var direction = input.offsetDirection; + + // if the touch action did prevented once this session + if (this.manager.session.prevented) { + srcEvent.preventDefault(); + return; + } + + var actions = this.actions; + var hasNone = inStr(actions, TOUCH_ACTION_NONE) && !TOUCH_ACTION_MAP[TOUCH_ACTION_NONE]; + var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_Y]; + var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_X]; + + if (hasNone) { + //do not prevent defaults if this is a tap gesture + + var isTapPointer = input.pointers.length === 1; + var isTapMovement = input.distance < 2; + var isTapTouchTime = input.deltaTime < 250; + + if (isTapPointer && isTapMovement && isTapTouchTime) { + return; + } + } + + if (hasPanX && hasPanY) { + // `pan-x pan-y` means browser handles all scrolling/panning, do not prevent + return; + } + + if (hasNone || + (hasPanY && direction & DIRECTION_HORIZONTAL) || + (hasPanX && direction & DIRECTION_VERTICAL)) { + return this.preventSrc(srcEvent); + } + }, + + /** + * call preventDefault to prevent the browser's default behavior (scrolling in most cases) + * @param {Object} srcEvent + */ + preventSrc: function(srcEvent) { + this.manager.session.prevented = true; + srcEvent.preventDefault(); + } +}; + +/** + * when the touchActions are collected they are not a valid value, so we need to clean things up. * + * @param {String} actions + * @returns {*} + */ +function cleanTouchActions(actions) { + // none + if (inStr(actions, TOUCH_ACTION_NONE)) { + return TOUCH_ACTION_NONE; + } + + var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X); + var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y); + + // if both pan-x and pan-y are set (different recognizers + // for different directions, e.g. horizontal pan but vertical swipe?) + // we need none (as otherwise with pan-x pan-y combined none of these + // recognizers will work, since the browser would handle all panning + if (hasPanX && hasPanY) { + return TOUCH_ACTION_NONE; + } + + // pan-x OR pan-y + if (hasPanX || hasPanY) { + return hasPanX ? TOUCH_ACTION_PAN_X : TOUCH_ACTION_PAN_Y; + } + + // manipulation + if (inStr(actions, TOUCH_ACTION_MANIPULATION)) { + return TOUCH_ACTION_MANIPULATION; + } + + return TOUCH_ACTION_AUTO; +} + +function getTouchActionProps() { + if (!NATIVE_TOUCH_ACTION) { + return false; + } + var touchMap = {}; + var cssSupports = window.CSS && window.CSS.supports; + ['auto', 'manipulation', 'pan-y', 'pan-x', 'pan-x pan-y', 'none'].forEach(function(val) { + + // If css.supports is not supported but there is native touch-action assume it supports + // all values. This is the case for IE 10 and 11. + touchMap[val] = cssSupports ? window.CSS.supports('touch-action', val) : true; + }); + return touchMap; +} diff --git a/node_modules/hammerjs/src/utils.js b/node_modules/hammerjs/src/utils.js new file mode 100644 index 0000000000000000000000000000000000000000..c923ce53342db7f1b579b5326fbe4b8f3e77c6ee --- /dev/null +++ b/node_modules/hammerjs/src/utils.js @@ -0,0 +1,371 @@ +var VENDOR_PREFIXES = ['', 'webkit', 'Moz', 'MS', 'ms', 'o']; +var TEST_ELEMENT = document.createElement('div'); + +var TYPE_FUNCTION = 'function'; + +var round = Math.round; +var abs = Math.abs; +var now = Date.now; + +/** + * set a timeout with a given scope + * @param {Function} fn + * @param {Number} timeout + * @param {Object} context + * @returns {number} + */ +function setTimeoutContext(fn, timeout, context) { + return setTimeout(bindFn(fn, context), timeout); +} + +/** + * if the argument is an array, we want to execute the fn on each entry + * if it aint an array we don't want to do a thing. + * this is used by all the methods that accept a single and array argument. + * @param {*|Array} arg + * @param {String} fn + * @param {Object} [context] + * @returns {Boolean} + */ +function invokeArrayArg(arg, fn, context) { + if (Array.isArray(arg)) { + each(arg, context[fn], context); + return true; + } + return false; +} + +/** + * walk objects and arrays + * @param {Object} obj + * @param {Function} iterator + * @param {Object} context + */ +function each(obj, iterator, context) { + var i; + + if (!obj) { + return; + } + + if (obj.forEach) { + obj.forEach(iterator, context); + } else if (obj.length !== undefined) { + i = 0; + while (i < obj.length) { + iterator.call(context, obj[i], i, obj); + i++; + } + } else { + for (i in obj) { + obj.hasOwnProperty(i) && iterator.call(context, obj[i], i, obj); + } + } +} + +/** + * wrap a method with a deprecation warning and stack trace + * @param {Function} method + * @param {String} name + * @param {String} message + * @returns {Function} A new function wrapping the supplied method. + */ +function deprecate(method, name, message) { + var deprecationMessage = 'DEPRECATED METHOD: ' + name + '\n' + message + ' AT \n'; + return function() { + var e = new Error('get-stack-trace'); + var stack = e && e.stack ? e.stack.replace(/^[^\(]+?[\n$]/gm, '') + .replace(/^\s+at\s+/gm, '') + .replace(/^Object.\s*\(/gm, '{anonymous}()@') : 'Unknown Stack Trace'; + + var log = window.console && (window.console.warn || window.console.log); + if (log) { + log.call(window.console, deprecationMessage, stack); + } + return method.apply(this, arguments); + }; +} + +/** + * extend object. + * means that properties in dest will be overwritten by the ones in src. + * @param {Object} target + * @param {...Object} objects_to_assign + * @returns {Object} target + */ +var assign; +if (typeof Object.assign !== 'function') { + assign = function assign(target) { + if (target === undefined || target === null) { + throw new TypeError('Cannot convert undefined or null to object'); + } + + var output = Object(target); + for (var index = 1; index < arguments.length; index++) { + var source = arguments[index]; + if (source !== undefined && source !== null) { + for (var nextKey in source) { + if (source.hasOwnProperty(nextKey)) { + output[nextKey] = source[nextKey]; + } + } + } + } + return output; + }; +} else { + assign = Object.assign; +} + +/** + * extend object. + * means that properties in dest will be overwritten by the ones in src. + * @param {Object} dest + * @param {Object} src + * @param {Boolean} [merge=false] + * @returns {Object} dest + */ +var extend = deprecate(function extend(dest, src, merge) { + var keys = Object.keys(src); + var i = 0; + while (i < keys.length) { + if (!merge || (merge && dest[keys[i]] === undefined)) { + dest[keys[i]] = src[keys[i]]; + } + i++; + } + return dest; +}, 'extend', 'Use `assign`.'); + +/** + * merge the values from src in the dest. + * means that properties that exist in dest will not be overwritten by src + * @param {Object} dest + * @param {Object} src + * @returns {Object} dest + */ +var merge = deprecate(function merge(dest, src) { + return extend(dest, src, true); +}, 'merge', 'Use `assign`.'); + +/** + * simple class inheritance + * @param {Function} child + * @param {Function} base + * @param {Object} [properties] + */ +function inherit(child, base, properties) { + var baseP = base.prototype, + childP; + + childP = child.prototype = Object.create(baseP); + childP.constructor = child; + childP._super = baseP; + + if (properties) { + assign(childP, properties); + } +} + +/** + * simple function bind + * @param {Function} fn + * @param {Object} context + * @returns {Function} + */ +function bindFn(fn, context) { + return function boundFn() { + return fn.apply(context, arguments); + }; +} + +/** + * let a boolean value also be a function that must return a boolean + * this first item in args will be used as the context + * @param {Boolean|Function} val + * @param {Array} [args] + * @returns {Boolean} + */ +function boolOrFn(val, args) { + if (typeof val == TYPE_FUNCTION) { + return val.apply(args ? args[0] || undefined : undefined, args); + } + return val; +} + +/** + * use the val2 when val1 is undefined + * @param {*} val1 + * @param {*} val2 + * @returns {*} + */ +function ifUndefined(val1, val2) { + return (val1 === undefined) ? val2 : val1; +} + +/** + * addEventListener with multiple events at once + * @param {EventTarget} target + * @param {String} types + * @param {Function} handler + */ +function addEventListeners(target, types, handler) { + each(splitStr(types), function(type) { + target.addEventListener(type, handler, false); + }); +} + +/** + * removeEventListener with multiple events at once + * @param {EventTarget} target + * @param {String} types + * @param {Function} handler + */ +function removeEventListeners(target, types, handler) { + each(splitStr(types), function(type) { + target.removeEventListener(type, handler, false); + }); +} + +/** + * find if a node is in the given parent + * @method hasParent + * @param {HTMLElement} node + * @param {HTMLElement} parent + * @return {Boolean} found + */ +function hasParent(node, parent) { + while (node) { + if (node == parent) { + return true; + } + node = node.parentNode; + } + return false; +} + +/** + * small indexOf wrapper + * @param {String} str + * @param {String} find + * @returns {Boolean} found + */ +function inStr(str, find) { + return str.indexOf(find) > -1; +} + +/** + * split string on whitespace + * @param {String} str + * @returns {Array} words + */ +function splitStr(str) { + return str.trim().split(/\s+/g); +} + +/** + * find if a array contains the object using indexOf or a simple polyFill + * @param {Array} src + * @param {String} find + * @param {String} [findByKey] + * @return {Boolean|Number} false when not found, or the index + */ +function inArray(src, find, findByKey) { + if (src.indexOf && !findByKey) { + return src.indexOf(find); + } else { + var i = 0; + while (i < src.length) { + if ((findByKey && src[i][findByKey] == find) || (!findByKey && src[i] === find)) { + return i; + } + i++; + } + return -1; + } +} + +/** + * convert array-like objects to real arrays + * @param {Object} obj + * @returns {Array} + */ +function toArray(obj) { + return Array.prototype.slice.call(obj, 0); +} + +/** + * unique array with objects based on a key (like 'id') or just by the array's value + * @param {Array} src [{id:1},{id:2},{id:1}] + * @param {String} [key] + * @param {Boolean} [sort=False] + * @returns {Array} [{id:1},{id:2}] + */ +function uniqueArray(src, key, sort) { + var results = []; + var values = []; + var i = 0; + + while (i < src.length) { + var val = key ? src[i][key] : src[i]; + if (inArray(values, val) < 0) { + results.push(src[i]); + } + values[i] = val; + i++; + } + + if (sort) { + if (!key) { + results = results.sort(); + } else { + results = results.sort(function sortUniqueArray(a, b) { + return a[key] > b[key]; + }); + } + } + + return results; +} + +/** + * get the prefixed property + * @param {Object} obj + * @param {String} property + * @returns {String|Undefined} prefixed + */ +function prefixed(obj, property) { + var prefix, prop; + var camelProp = property[0].toUpperCase() + property.slice(1); + + var i = 0; + while (i < VENDOR_PREFIXES.length) { + prefix = VENDOR_PREFIXES[i]; + prop = (prefix) ? prefix + camelProp : property; + + if (prop in obj) { + return prop; + } + i++; + } + return undefined; +} + +/** + * get a unique id + * @returns {number} uniqueId + */ +var _uniqueId = 1; +function uniqueId() { + return _uniqueId++; +} + +/** + * get the window object of an element + * @param {HTMLElement} element + * @returns {DocumentView|Window} + */ +function getWindowForElement(element) { + var doc = element.ownerDocument || element; + return (doc.defaultView || doc.parentWindow || window); +} diff --git a/node_modules/hammerjs/tests/manual/assets/style.css b/node_modules/hammerjs/tests/manual/assets/style.css new file mode 100644 index 0000000000000000000000000000000000000000..332c999ff8b97042045c80e9f2f9e206e97a0427 --- /dev/null +++ b/node_modules/hammerjs/tests/manual/assets/style.css @@ -0,0 +1,42 @@ +@import url(http://fonts.googleapis.com/css?family=Open+Sans); + +*, *:after, *:before { + box-sizing: border-box; + -moz-box-sizing: border-box; +} + +html, body { + margin: 0; + padding: 0; + height: 100%; + min-height: 100%; + background: #eee; + font: 13px/1.5em 'Open Sans', Helvetica, Arial, sans-serif; +} + +a { + color: #4986e7; +} + +.bg1, .green { background: #42d692; } +.bg2, .blue { background: #4986e7; } +.bg3, .red { background: #d06b64; } +.bg4, .purple { background: #cd74e6; } +.bg5, .azure { background: #9fe1e7; } + +body { + margin: 20px; +} + +pre { + background: #fff; + padding: 20px; + margin-bottom: 20px; +} + +.container { + max-width: 900px; + margin: 0 auto; +} + +.clear { clear: both; } diff --git a/node_modules/hammerjs/tests/manual/compute_touch_action.html b/node_modules/hammerjs/tests/manual/compute_touch_action.html new file mode 100644 index 0000000000000000000000000000000000000000..28e2a25f1c354d1f572a44529f701e0ae39baa38 --- /dev/null +++ b/node_modules/hammerjs/tests/manual/compute_touch_action.html @@ -0,0 +1,18 @@ + + + + + + + + Open the inspector and play a bit with the touchAction property. + + + + diff --git a/node_modules/hammerjs/tests/manual/input.html b/node_modules/hammerjs/tests/manual/input.html new file mode 100644 index 0000000000000000000000000000000000000000..2889e457b7c9a920625fefc8df939e64d1c7bca5 --- /dev/null +++ b/node_modules/hammerjs/tests/manual/input.html @@ -0,0 +1,51 @@ + + + + + + + + Hammer.js + + +
+
+
+ + 

+
+        

+    

+    
+    
+
+
diff --git a/node_modules/hammerjs/tests/manual/log.html b/node_modules/hammerjs/tests/manual/log.html
new file mode 100644
index 0000000000000000000000000000000000000000..36518eb22b5cf0f64ee57c28665a5ccb314ae2d4
--- /dev/null
+++ b/node_modules/hammerjs/tests/manual/log.html
@@ -0,0 +1,61 @@
+
+
+
+    
+    
+    
+    Hammer.js
+
+
+    

+
+        

+            
+        

+
+        

+
+        

+
+    

+    
+    
+
+
diff --git a/node_modules/hammerjs/tests/manual/multiple.html b/node_modules/hammerjs/tests/manual/multiple.html
new file mode 100644
index 0000000000000000000000000000000000000000..be1dc319880f9202a2eec467d2c429e39b537709
--- /dev/null
+++ b/node_modules/hammerjs/tests/manual/multiple.html
@@ -0,0 +1,73 @@
+
+
+
+    
+    
+    
+    Hammer.js
+    
+
+
+    

+        

+        
+
+        

+
+        
Multiple instances the same time

+        
You can run multiple instances of Hammer on your page and they will recognize each completely isolated
+            from each other. This makes it possible to build multi-user interfaces.

+
+    

+    
+    
+
+
diff --git a/node_modules/hammerjs/tests/manual/nested.html b/node_modules/hammerjs/tests/manual/nested.html
new file mode 100644
index 0000000000000000000000000000000000000000..5f03c5123b54364bc17184bde288744a65f7721a
--- /dev/null
+++ b/node_modules/hammerjs/tests/manual/nested.html
@@ -0,0 +1,217 @@
+
+
+
+    
+    
+    
+    
+    Hammer.js
+    
+
+
+
+
+    

+        

+            

+                
1.1

+                
1.2

+                
1.3

+                
1.4

+                
1.5

+            

+        

+        

+            

+                
2.1

+                
2.2

+                
2.3

+                
2.4

+                
2.5

+            

+        

+        

+            

+                
3.1

+                
3.2

+                
3.3

+                
3.4

+                
3.5

+            

+        

+        

+            

+                
4.1

+                
4.2

+                
4.3

+                
4.4

+                
4.5

+            

+        

+        

+            

+                
5.1

+                
5.2

+                
5.3

+                
5.4

+                
5.5

+            

+        

+    

+
+    

+        
Nested Pan recognizers

+
+        
Nested recognizers are possible with some threshold and with use of requireFailure().

+    

+
+    
+    
+
+
+
diff --git a/node_modules/hammerjs/tests/manual/simulator-googlemaps.html b/node_modules/hammerjs/tests/manual/simulator-googlemaps.html
new file mode 100644
index 0000000000000000000000000000000000000000..6100621f60cefb1098fc576ae0a2f6bec278fd08
--- /dev/null
+++ b/node_modules/hammerjs/tests/manual/simulator-googlemaps.html
@@ -0,0 +1,100 @@
+
+
+
+    
+    
+    Hammer.js
+
+
+
+

+    

+
+    
Gestures simulator

+    
Used for unit-testing Hammer.js. To test it on the Google Maps view, you should open your
+        
+        Inspector and emulate a touch-screen.
+        Or just open it on your touch-device.

+    
Currently, it only triggers touchEvents.

+

+
+
+
+
+
+
+
diff --git a/node_modules/hammerjs/tests/manual/simulator.html b/node_modules/hammerjs/tests/manual/simulator.html
new file mode 100644
index 0000000000000000000000000000000000000000..47c06780dd1cc3bb6af3d7d0448d0b4529b3f902
--- /dev/null
+++ b/node_modules/hammerjs/tests/manual/simulator.html
@@ -0,0 +1,118 @@
+
+
+
+    
+    
+    Hammer.js
+
+
+
+

+
+    

+    

+
+    

+
+    

+
+

+
+
+
+
+
+
+
diff --git a/node_modules/hammerjs/tests/manual/touchaction.html b/node_modules/hammerjs/tests/manual/touchaction.html
new file mode 100644
index 0000000000000000000000000000000000000000..4c68be03b9556da8e702f64d6951e396c05ff5b4
--- /dev/null
+++ b/node_modules/hammerjs/tests/manual/touchaction.html
@@ -0,0 +1,91 @@
+
+
+
+    
+    
+    Hammer.js
+
+    
+
+
+
+    

+        
Hammer provides a kind of polyfill
+            for the browsers that don't support the touch-action property.

+
+        
Your browser has support for the touch-action property!

+        
Your browser doesn't support the touch-action property,
+            so we use the polyfill.

+
+        
touch-action: auto

+        
Should prevent nothing.

+        

+
+        
touch-action: pan-y

+        
Should prevent scrolling on horizontal movement. This is set by default when creating a Hammer instance.

+        

+
+        
touch-action: pan-x

+        
Should prevent scrolling on vertical movement.

+        

+
+        
touch-action: pan-x pan-y

+        
Should not prevent any scrolling on any movement. Horizontal and vertical scrolling handled by the browser directly.

+        

+
+        
touch-action: none

+        
Should prevent all.

+        

+    

+    
+    
+
+    

+    
hi.

+
+
+
diff --git a/node_modules/hammerjs/tests/manual/visual.html b/node_modules/hammerjs/tests/manual/visual.html
new file mode 100644
index 0000000000000000000000000000000000000000..f0f7de13cd187939248dbfc8076c6f11edeefaa4
--- /dev/null
+++ b/node_modules/hammerjs/tests/manual/visual.html
@@ -0,0 +1,211 @@
+
+
+
+    
+    
+    Hammer.js
+
+    
+
+
+
+

+

+
+
+
+
+
+
diff --git a/node_modules/hammerjs/tests/unit/assets/blanket.js b/node_modules/hammerjs/tests/unit/assets/blanket.js
new file mode 100644
index 0000000000000000000000000000000000000000..fc0bc731517bdbb5fff5444990b74fbc10754de0
--- /dev/null
+++ b/node_modules/hammerjs/tests/unit/assets/blanket.js
@@ -0,0 +1,5447 @@
+/*! blanket - v1.1.5 */
+
+if (typeof QUnit !== 'undefined'){ QUnit.config.autostart = false; }
+(function(define){
+/*
+  Copyright (C) 2012 Ariya Hidayat 
+  Copyright (C) 2012 Mathias Bynens 
+  Copyright (C) 2012 Joost-Wim Boekesteijn 
+  Copyright (C) 2012 Kris Kowal 
+  Copyright (C) 2012 Yusuke Suzuki 
+  Copyright (C) 2012 Arpad Borsos 
+  Copyright (C) 2011 Ariya Hidayat 
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL  BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*jslint bitwise:true plusplus:true */
+/*global esprima:true, define:true, exports:true, window: true,
+throwError: true, createLiteral: true, generateStatement: true,
+parseAssignmentExpression: true, parseBlock: true, parseExpression: true,
+parseFunctionDeclaration: true, parseFunctionExpression: true,
+parseFunctionSourceElements: true, parseVariableIdentifier: true,
+parseLeftHandSideExpression: true,
+parseStatement: true, parseSourceElement: true */
+
+(function (root, factory) {
+    'use strict';
+
+    // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js,
+    // Rhino, and plain browser loading.
+    if (typeof define === 'function' && define.amd) {
+        define(['exports'], factory);
+    } else if (typeof exports !== 'undefined') {
+        factory(exports);
+    } else {
+        factory((root.esprima = {}));
+    }
+}(this, function (exports) {
+    'use strict';
+
+    var Token,
+        TokenName,
+        Syntax,
+        PropertyKind,
+        Messages,
+        Regex,
+        source,
+        strict,
+        index,
+        lineNumber,
+        lineStart,
+        length,
+        buffer,
+        state,
+        extra;
+
+    Token = {
+        BooleanLiteral: 1,
+        EOF: 2,
+        Identifier: 3,
+        Keyword: 4,
+        NullLiteral: 5,
+        NumericLiteral: 6,
+        Punctuator: 7,
+        StringLiteral: 8
+    };
+
+    TokenName = {};
+    TokenName[Token.BooleanLiteral] = 'Boolean';
+    TokenName[Token.EOF] = '';
+    TokenName[Token.Identifier] = 'Identifier';
+    TokenName[Token.Keyword] = 'Keyword';
+    TokenName[Token.NullLiteral] = 'Null';
+    TokenName[Token.NumericLiteral] = 'Numeric';
+    TokenName[Token.Punctuator] = 'Punctuator';
+    TokenName[Token.StringLiteral] = 'String';
+
+    Syntax = {
+        AssignmentExpression: 'AssignmentExpression',
+        ArrayExpression: 'ArrayExpression',
+        BlockStatement: 'BlockStatement',
+        BinaryExpression: 'BinaryExpression',
+        BreakStatement: 'BreakStatement',
+        CallExpression: 'CallExpression',
+        CatchClause: 'CatchClause',
+        ConditionalExpression: 'ConditionalExpression',
+        ContinueStatement: 'ContinueStatement',
+        DoWhileStatement: 'DoWhileStatement',
+        DebuggerStatement: 'DebuggerStatement',
+        EmptyStatement: 'EmptyStatement',
+        ExpressionStatement: 'ExpressionStatement',
+        ForStatement: 'ForStatement',
+        ForInStatement: 'ForInStatement',
+        FunctionDeclaration: 'FunctionDeclaration',
+        FunctionExpression: 'FunctionExpression',
+        Identifier: 'Identifier',
+        IfStatement: 'IfStatement',
+        Literal: 'Literal',
+        LabeledStatement: 'LabeledStatement',
+        LogicalExpression: 'LogicalExpression',
+        MemberExpression: 'MemberExpression',
+        NewExpression: 'NewExpression',
+        ObjectExpression: 'ObjectExpression',
+        Program: 'Program',
+        Property: 'Property',
+        ReturnStatement: 'ReturnStatement',
+        SequenceExpression: 'SequenceExpression',
+        SwitchStatement: 'SwitchStatement',
+        SwitchCase: 'SwitchCase',
+        ThisExpression: 'ThisExpression',
+        ThrowStatement: 'ThrowStatement',
+        TryStatement: 'TryStatement',
+        UnaryExpression: 'UnaryExpression',
+        UpdateExpression: 'UpdateExpression',
+        VariableDeclaration: 'VariableDeclaration',
+        VariableDeclarator: 'VariableDeclarator',
+        WhileStatement: 'WhileStatement',
+        WithStatement: 'WithStatement'
+    };
+
+    PropertyKind = {
+        Data: 1,
+        Get: 2,
+        Set: 4
+    };
+
+    // Error messages should be identical to V8.
+    Messages = {
+        UnexpectedToken:  'Unexpected token %0',
+        UnexpectedNumber:  'Unexpected number',
+        UnexpectedString:  'Unexpected string',
+        UnexpectedIdentifier:  'Unexpected identifier',
+        UnexpectedReserved:  'Unexpected reserved word',
+        UnexpectedEOS:  'Unexpected end of input',
+        NewlineAfterThrow:  'Illegal newline after throw',
+        InvalidRegExp: 'Invalid regular expression',
+        UnterminatedRegExp:  'Invalid regular expression: missing /',
+        InvalidLHSInAssignment:  'Invalid left-hand side in assignment',
+        InvalidLHSInForIn:  'Invalid left-hand side in for-in',
+        MultipleDefaultsInSwitch: 'More than one default clause in switch statement',
+        NoCatchOrFinally:  'Missing catch or finally after try',
+        UnknownLabel: 'Undefined label \'%0\'',
+        Redeclaration: '%0 \'%1\' has already been declared',
+        IllegalContinue: 'Illegal continue statement',
+        IllegalBreak: 'Illegal break statement',
+        IllegalReturn: 'Illegal return statement',
+        StrictModeWith:  'Strict mode code may not include a with statement',
+        StrictCatchVariable:  'Catch variable may not be eval or arguments in strict mode',
+        StrictVarName:  'Variable name may not be eval or arguments in strict mode',
+        StrictParamName:  'Parameter name eval or arguments is not allowed in strict mode',
+        StrictParamDupe: 'Strict mode function may not have duplicate parameter names',
+        StrictFunctionName:  'Function name may not be eval or arguments in strict mode',
+        StrictOctalLiteral:  'Octal literals are not allowed in strict mode.',
+        StrictDelete:  'Delete of an unqualified identifier in strict mode.',
+        StrictDuplicateProperty:  'Duplicate data property in object literal not allowed in strict mode',
+        AccessorDataProperty:  'Object literal may not have data and accessor property with the same name',
+        AccessorGetSet:  'Object literal may not have multiple get/set accessors with the same name',
+        StrictLHSAssignment:  'Assignment to eval or arguments is not allowed in strict mode',
+        StrictLHSPostfix:  'Postfix increment/decrement may not have eval or arguments operand in strict mode',
+        StrictLHSPrefix:  'Prefix increment/decrement may not have eval or arguments operand in strict mode',
+        StrictReservedWord:  'Use of future reserved word in strict mode'
+    };
+
+    // See also tools/generate-unicode-regex.py.
+    Regex = {
+        NonAsciiIdentifierStart: new RegExp('[\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05d0-\u05ea\u05f0-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u08a0\u08a2-\u08ac\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097f\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d\u0c58\u0c59\u0c60\u0c61\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d60\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1877\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191c\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19c1-\u19c7\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1ce9-\u1cec\u1cee-\u1cf1\u1cf5\u1cf6\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2e2f\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua697\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa80-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]'),
+        NonAsciiIdentifierPart: new RegExp('[\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0300-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u0483-\u0487\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u05d0-\u05ea\u05f0-\u05f2\u0610-\u061a\u0620-\u0669\u066e-\u06d3\u06d5-\u06dc\u06df-\u06e8\u06ea-\u06fc\u06ff\u0710-\u074a\u074d-\u07b1\u07c0-\u07f5\u07fa\u0800-\u082d\u0840-\u085b\u08a0\u08a2-\u08ac\u08e4-\u08fe\u0900-\u0963\u0966-\u096f\u0971-\u0977\u0979-\u097f\u0981-\u0983\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bc-\u09c4\u09c7\u09c8\u09cb-\u09ce\u09d7\u09dc\u09dd\u09df-\u09e3\u09e6-\u09f1\u0a01-\u0a03\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a59-\u0a5c\u0a5e\u0a66-\u0a75\u0a81-\u0a83\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abc-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ad0\u0ae0-\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3c-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b5c\u0b5d\u0b5f-\u0b63\u0b66-\u0b6f\u0b71\u0b82\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd0\u0bd7\u0be6-\u0bef\u0c01-\u0c03\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c58\u0c59\u0c60-\u0c63\u0c66-\u0c6f\u0c82\u0c83\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbc-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0cde\u0ce0-\u0ce3\u0ce6-\u0cef\u0cf1\u0cf2\u0d02\u0d03\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d-\u0d44\u0d46-\u0d48\u0d4a-\u0d4e\u0d57\u0d60-\u0d63\u0d66-\u0d6f\u0d7a-\u0d7f\u0d82\u0d83\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0df2\u0df3\u0e01-\u0e3a\u0e40-\u0e4e\u0e50-\u0e59\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb9\u0ebb-\u0ebd\u0ec0-\u0ec4\u0ec6\u0ec8-\u0ecd\u0ed0-\u0ed9\u0edc-\u0edf\u0f00\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e-\u0f47\u0f49-\u0f6c\u0f71-\u0f84\u0f86-\u0f97\u0f99-\u0fbc\u0fc6\u1000-\u1049\u1050-\u109d\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u135d-\u135f\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176c\u176e-\u1770\u1772\u1773\u1780-\u17d3\u17d7\u17dc\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u1820-\u1877\u1880-\u18aa\u18b0-\u18f5\u1900-\u191c\u1920-\u192b\u1930-\u193b\u1946-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u19d0-\u19d9\u1a00-\u1a1b\u1a20-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1aa7\u1b00-\u1b4b\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1bf3\u1c00-\u1c37\u1c40-\u1c49\u1c4d-\u1c7d\u1cd0-\u1cd2\u1cd4-\u1cf6\u1d00-\u1de6\u1dfc-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u200c\u200d\u203f\u2040\u2054\u2071\u207f\u2090-\u209c\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d7f-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2de0-\u2dff\u2e2f\u3005-\u3007\u3021-\u302f\u3031-\u3035\u3038-\u303c\u3041-\u3096\u3099\u309a\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua62b\ua640-\ua66f\ua674-\ua67d\ua67f-\ua697\ua69f-\ua6f1\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua827\ua840-\ua873\ua880-\ua8c4\ua8d0-\ua8d9\ua8e0-\ua8f7\ua8fb\ua900-\ua92d\ua930-\ua953\ua960-\ua97c\ua980-\ua9c0\ua9cf-\ua9d9\uaa00-\uaa36\uaa40-\uaa4d\uaa50-\uaa59\uaa60-\uaa76\uaa7a\uaa7b\uaa80-\uaac2\uaadb-\uaadd\uaae0-\uaaef\uaaf2-\uaaf6\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabea\uabec\uabed\uabf0-\uabf9\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe00-\ufe0f\ufe20-\ufe26\ufe33\ufe34\ufe4d-\ufe4f\ufe70-\ufe74\ufe76-\ufefc\uff10-\uff19\uff21-\uff3a\uff3f\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]')
+    };
+
+    // Ensure the condition is true, otherwise throw an error.
+    // This is only to have a better contract semantic, i.e. another safety net
+    // to catch a logic error. The condition shall be fulfilled in normal case.
+    // Do NOT use this to enforce a certain condition on any user input.
+
+    function assert(condition, message) {
+        if (!condition) {
+            throw new Error('ASSERT: ' + message);
+        }
+    }
+
+    function sliceSource(from, to) {
+        return source.slice(from, to);
+    }
+
+    if (typeof 'esprima'[0] === 'undefined') {
+        sliceSource = function sliceArraySource(from, to) {
+            return source.slice(from, to).join('');
+        };
+    }
+
+    function isDecimalDigit(ch) {
+        return '0123456789'.indexOf(ch) >= 0;
+    }
+
+    function isHexDigit(ch) {
+        return '0123456789abcdefABCDEF'.indexOf(ch) >= 0;
+    }
+
+    function isOctalDigit(ch) {
+        return '01234567'.indexOf(ch) >= 0;
+    }
+
+
+    // 7.2 White Space
+
+    function isWhiteSpace(ch) {
+        return (ch === ' ') || (ch === '\u0009') || (ch === '\u000B') ||
+            (ch === '\u000C') || (ch === '\u00A0') ||
+            (ch.charCodeAt(0) >= 0x1680 &&
+             '\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\uFEFF'.indexOf(ch) >= 0);
+    }
+
+    // 7.3 Line Terminators
+
+    function isLineTerminator(ch) {
+        return (ch === '\n' || ch === '\r' || ch === '\u2028' || ch === '\u2029');
+    }
+
+    // 7.6 Identifier Names and Identifiers
+
+    function isIdentifierStart(ch) {
+        return (ch === '$') || (ch === '_') || (ch === '\\') ||
+            (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') ||
+            ((ch.charCodeAt(0) >= 0x80) && Regex.NonAsciiIdentifierStart.test(ch));
+    }
+
+    function isIdentifierPart(ch) {
+        return (ch === '$') || (ch === '_') || (ch === '\\') ||
+            (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') ||
+            ((ch >= '0') && (ch <= '9')) ||
+            ((ch.charCodeAt(0) >= 0x80) && Regex.NonAsciiIdentifierPart.test(ch));
+    }
+
+    // 7.6.1.2 Future Reserved Words
+
+    function isFutureReservedWord(id) {
+        switch (id) {
+
+        // Future reserved words.
+        case 'class':
+        case 'enum':
+        case 'export':
+        case 'extends':
+        case 'import':
+        case 'super':
+            return true;
+        }
+
+        return false;
+    }
+
+    function isStrictModeReservedWord(id) {
+        switch (id) {
+
+        // Strict Mode reserved words.
+        case 'implements':
+        case 'interface':
+        case 'package':
+        case 'private':
+        case 'protected':
+        case 'public':
+        case 'static':
+        case 'yield':
+        case 'let':
+            return true;
+        }
+
+        return false;
+    }
+
+    function isRestrictedWord(id) {
+        return id === 'eval' || id === 'arguments';
+    }
+
+    // 7.6.1.1 Keywords
+
+    function isKeyword(id) {
+        var keyword = false;
+        switch (id.length) {
+        case 2:
+            keyword = (id === 'if') || (id === 'in') || (id === 'do');
+            break;
+        case 3:
+            keyword = (id === 'var') || (id === 'for') || (id === 'new') || (id === 'try');
+            break;
+        case 4:
+            keyword = (id === 'this') || (id === 'else') || (id === 'case') || (id === 'void') || (id === 'with');
+            break;
+        case 5:
+            keyword = (id === 'while') || (id === 'break') || (id === 'catch') || (id === 'throw');
+            break;
+        case 6:
+            keyword = (id === 'return') || (id === 'typeof') || (id === 'delete') || (id === 'switch');
+            break;
+        case 7:
+            keyword = (id === 'default') || (id === 'finally');
+            break;
+        case 8:
+            keyword = (id === 'function') || (id === 'continue') || (id === 'debugger');
+            break;
+        case 10:
+            keyword = (id === 'instanceof');
+            break;
+        }
+
+        if (keyword) {
+            return true;
+        }
+
+        switch (id) {
+        // Future reserved words.
+        // 'const' is specialized as Keyword in V8.
+        case 'const':
+            return true;
+
+        // For compatiblity to SpiderMonkey and ES.next
+        case 'yield':
+        case 'let':
+            return true;
+        }
+
+        if (strict && isStrictModeReservedWord(id)) {
+            return true;
+        }
+
+        return isFutureReservedWord(id);
+    }
+
+    // 7.4 Comments
+
+    function skipComment() {
+        var ch, blockComment, lineComment;
+
+        blockComment = false;
+        lineComment = false;
+
+        while (index < length) {
+            ch = source[index];
+
+            if (lineComment) {
+                ch = source[index++];
+                if (isLineTerminator(ch)) {
+                    lineComment = false;
+                    if (ch === '\r' && source[index] === '\n') {
+                        ++index;
+                    }
+                    ++lineNumber;
+                    lineStart = index;
+                }
+            } else if (blockComment) {
+                if (isLineTerminator(ch)) {
+                    if (ch === '\r' && source[index + 1] === '\n') {
+                        ++index;
+                    }
+                    ++lineNumber;
+                    ++index;
+                    lineStart = index;
+                    if (index >= length) {
+                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+                    }
+                } else {
+                    ch = source[index++];
+                    if (index >= length) {
+                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+                    }
+                    if (ch === '*') {
+                        ch = source[index];
+                        if (ch === '/') {
+                            ++index;
+                            blockComment = false;
+                        }
+                    }
+                }
+            } else if (ch === '/') {
+                ch = source[index + 1];
+                if (ch === '/') {
+                    index += 2;
+                    lineComment = true;
+                } else if (ch === '*') {
+                    index += 2;
+                    blockComment = true;
+                    if (index >= length) {
+                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+                    }
+                } else {
+                    break;
+                }
+            } else if (isWhiteSpace(ch)) {
+                ++index;
+            } else if (isLineTerminator(ch)) {
+                ++index;
+                if (ch ===  '\r' && source[index] === '\n') {
+                    ++index;
+                }
+                ++lineNumber;
+                lineStart = index;
+            } else {
+                break;
+            }
+        }
+    }
+
+    function scanHexEscape(prefix) {
+        var i, len, ch, code = 0;
+
+        len = (prefix === 'u') ? 4 : 2;
+        for (i = 0; i < len; ++i) {
+            if (index < length && isHexDigit(source[index])) {
+                ch = source[index++];
+                code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
+            } else {
+                return '';
+            }
+        }
+        return String.fromCharCode(code);
+    }
+
+    function scanIdentifier() {
+        var ch, start, id, restore;
+
+        ch = source[index];
+        if (!isIdentifierStart(ch)) {
+            return;
+        }
+
+        start = index;
+        if (ch === '\\') {
+            ++index;
+            if (source[index] !== 'u') {
+                return;
+            }
+            ++index;
+            restore = index;
+            ch = scanHexEscape('u');
+            if (ch) {
+                if (ch === '\\' || !isIdentifierStart(ch)) {
+                    return;
+                }
+                id = ch;
+            } else {
+                index = restore;
+                id = 'u';
+            }
+        } else {
+            id = source[index++];
+        }
+
+        while (index < length) {
+            ch = source[index];
+            if (!isIdentifierPart(ch)) {
+                break;
+            }
+            if (ch === '\\') {
+                ++index;
+                if (source[index] !== 'u') {
+                    return;
+                }
+                ++index;
+                restore = index;
+                ch = scanHexEscape('u');
+                if (ch) {
+                    if (ch === '\\' || !isIdentifierPart(ch)) {
+                        return;
+                    }
+                    id += ch;
+                } else {
+                    index = restore;
+                    id += 'u';
+                }
+            } else {
+                id += source[index++];
+            }
+        }
+
+        // There is no keyword or literal with only one character.
+        // Thus, it must be an identifier.
+        if (id.length === 1) {
+            return {
+                type: Token.Identifier,
+                value: id,
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [start, index]
+            };
+        }
+
+        if (isKeyword(id)) {
+            return {
+                type: Token.Keyword,
+                value: id,
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [start, index]
+            };
+        }
+
+        // 7.8.1 Null Literals
+
+        if (id === 'null') {
+            return {
+                type: Token.NullLiteral,
+                value: id,
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [start, index]
+            };
+        }
+
+        // 7.8.2 Boolean Literals
+
+        if (id === 'true' || id === 'false') {
+            return {
+                type: Token.BooleanLiteral,
+                value: id,
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [start, index]
+            };
+        }
+
+        return {
+            type: Token.Identifier,
+            value: id,
+            lineNumber: lineNumber,
+            lineStart: lineStart,
+            range: [start, index]
+        };
+    }
+
+    // 7.7 Punctuators
+
+    function scanPunctuator() {
+        var start = index,
+            ch1 = source[index],
+            ch2,
+            ch3,
+            ch4;
+
+        // Check for most common single-character punctuators.
+
+        if (ch1 === ';' || ch1 === '{' || ch1 === '}') {
+            ++index;
+            return {
+                type: Token.Punctuator,
+                value: ch1,
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [start, index]
+            };
+        }
+
+        if (ch1 === ',' || ch1 === '(' || ch1 === ')') {
+            ++index;
+            return {
+                type: Token.Punctuator,
+                value: ch1,
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [start, index]
+            };
+        }
+
+        // Dot (.) can also start a floating-point number, hence the need
+        // to check the next character.
+
+        ch2 = source[index + 1];
+        if (ch1 === '.' && !isDecimalDigit(ch2)) {
+            return {
+                type: Token.Punctuator,
+                value: source[index++],
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [start, index]
+            };
+        }
+
+        // Peek more characters.
+
+        ch3 = source[index + 2];
+        ch4 = source[index + 3];
+
+        // 4-character punctuator: >>>=
+
+        if (ch1 === '>' && ch2 === '>' && ch3 === '>') {
+            if (ch4 === '=') {
+                index += 4;
+                return {
+                    type: Token.Punctuator,
+                    value: '>>>=',
+                    lineNumber: lineNumber,
+                    lineStart: lineStart,
+                    range: [start, index]
+                };
+            }
+        }
+
+        // 3-character punctuators: === !== >>> <<= >>=
+
+        if (ch1 === '=' && ch2 === '=' && ch3 === '=') {
+            index += 3;
+            return {
+                type: Token.Punctuator,
+                value: '===',
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [start, index]
+            };
+        }
+
+        if (ch1 === '!' && ch2 === '=' && ch3 === '=') {
+            index += 3;
+            return {
+                type: Token.Punctuator,
+                value: '!==',
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [start, index]
+            };
+        }
+
+        if (ch1 === '>' && ch2 === '>' && ch3 === '>') {
+            index += 3;
+            return {
+                type: Token.Punctuator,
+                value: '>>>',
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [start, index]
+            };
+        }
+
+        if (ch1 === '<' && ch2 === '<' && ch3 === '=') {
+            index += 3;
+            return {
+                type: Token.Punctuator,
+                value: '<<=',
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [start, index]
+            };
+        }
+
+        if (ch1 === '>' && ch2 === '>' && ch3 === '=') {
+            index += 3;
+            return {
+                type: Token.Punctuator,
+                value: '>>=',
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [start, index]
+            };
+        }
+
+        // 2-character punctuators: <= >= == != ++ -- << >> && ||
+        // += -= *= %= &= |= ^= /=
+
+        if (ch2 === '=') {
+            if ('<>=!+-*%&|^/'.indexOf(ch1) >= 0) {
+                index += 2;
+                return {
+                    type: Token.Punctuator,
+                    value: ch1 + ch2,
+                    lineNumber: lineNumber,
+                    lineStart: lineStart,
+                    range: [start, index]
+                };
+            }
+        }
+
+        if (ch1 === ch2 && ('+-<>&|'.indexOf(ch1) >= 0)) {
+            if ('+-<>&|'.indexOf(ch2) >= 0) {
+                index += 2;
+                return {
+                    type: Token.Punctuator,
+                    value: ch1 + ch2,
+                    lineNumber: lineNumber,
+                    lineStart: lineStart,
+                    range: [start, index]
+                };
+            }
+        }
+
+        // The remaining 1-character punctuators.
+
+        if ('[]<>+-*%&|^!~?:=/'.indexOf(ch1) >= 0) {
+            return {
+                type: Token.Punctuator,
+                value: source[index++],
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [start, index]
+            };
+        }
+    }
+
+    // 7.8.3 Numeric Literals
+
+    function scanNumericLiteral() {
+        var number, start, ch;
+
+        ch = source[index];
+        assert(isDecimalDigit(ch) || (ch === '.'),
+            'Numeric literal must start with a decimal digit or a decimal point');
+
+        start = index;
+        number = '';
+        if (ch !== '.') {
+            number = source[index++];
+            ch = source[index];
+
+            // Hex number starts with '0x'.
+            // Octal number starts with '0'.
+            if (number === '0') {
+                if (ch === 'x' || ch === 'X') {
+                    number += source[index++];
+                    while (index < length) {
+                        ch = source[index];
+                        if (!isHexDigit(ch)) {
+                            break;
+                        }
+                        number += source[index++];
+                    }
+
+                    if (number.length <= 2) {
+                        // only 0x
+                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+                    }
+
+                    if (index < length) {
+                        ch = source[index];
+                        if (isIdentifierStart(ch)) {
+                            throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+                        }
+                    }
+                    return {
+                        type: Token.NumericLiteral,
+                        value: parseInt(number, 16),
+                        lineNumber: lineNumber,
+                        lineStart: lineStart,
+                        range: [start, index]
+                    };
+                } else if (isOctalDigit(ch)) {
+                    number += source[index++];
+                    while (index < length) {
+                        ch = source[index];
+                        if (!isOctalDigit(ch)) {
+                            break;
+                        }
+                        number += source[index++];
+                    }
+
+                    if (index < length) {
+                        ch = source[index];
+                        if (isIdentifierStart(ch) || isDecimalDigit(ch)) {
+                            throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+                        }
+                    }
+                    return {
+                        type: Token.NumericLiteral,
+                        value: parseInt(number, 8),
+                        octal: true,
+                        lineNumber: lineNumber,
+                        lineStart: lineStart,
+                        range: [start, index]
+                    };
+                }
+
+                // decimal number starts with '0' such as '09' is illegal.
+                if (isDecimalDigit(ch)) {
+                    throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+                }
+            }
+
+            while (index < length) {
+                ch = source[index];
+                if (!isDecimalDigit(ch)) {
+                    break;
+                }
+                number += source[index++];
+            }
+        }
+
+        if (ch === '.') {
+            number += source[index++];
+            while (index < length) {
+                ch = source[index];
+                if (!isDecimalDigit(ch)) {
+                    break;
+                }
+                number += source[index++];
+            }
+        }
+
+        if (ch === 'e' || ch === 'E') {
+            number += source[index++];
+
+            ch = source[index];
+            if (ch === '+' || ch === '-') {
+                number += source[index++];
+            }
+
+            ch = source[index];
+            if (isDecimalDigit(ch)) {
+                number += source[index++];
+                while (index < length) {
+                    ch = source[index];
+                    if (!isDecimalDigit(ch)) {
+                        break;
+                    }
+                    number += source[index++];
+                }
+            } else {
+                ch = 'character ' + ch;
+                if (index >= length) {
+                    ch = '';
+                }
+                throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+            }
+        }
+
+        if (index < length) {
+            ch = source[index];
+            if (isIdentifierStart(ch)) {
+                throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+            }
+        }
+
+        return {
+            type: Token.NumericLiteral,
+            value: parseFloat(number),
+            lineNumber: lineNumber,
+            lineStart: lineStart,
+            range: [start, index]
+        };
+    }
+
+    // 7.8.4 String Literals
+
+    function scanStringLiteral() {
+        var str = '', quote, start, ch, code, unescaped, restore, octal = false;
+
+        quote = source[index];
+        assert((quote === '\'' || quote === '"'),
+            'String literal must starts with a quote');
+
+        start = index;
+        ++index;
+
+        while (index < length) {
+            ch = source[index++];
+
+            if (ch === quote) {
+                quote = '';
+                break;
+            } else if (ch === '\\') {
+                ch = source[index++];
+                if (!isLineTerminator(ch)) {
+                    switch (ch) {
+                    case 'n':
+                        str += '\n';
+                        break;
+                    case 'r':
+                        str += '\r';
+                        break;
+                    case 't':
+                        str += '\t';
+                        break;
+                    case 'u':
+                    case 'x':
+                        restore = index;
+                        unescaped = scanHexEscape(ch);
+                        if (unescaped) {
+                            str += unescaped;
+                        } else {
+                            index = restore;
+                            str += ch;
+                        }
+                        break;
+                    case 'b':
+                        str += '\b';
+                        break;
+                    case 'f':
+                        str += '\f';
+                        break;
+                    case 'v':
+                        str += '\x0B';
+                        break;
+
+                    default:
+                        if (isOctalDigit(ch)) {
+                            code = '01234567'.indexOf(ch);
+
+                            // \0 is not octal escape sequence
+                            if (code !== 0) {
+                                octal = true;
+                            }
+
+                            if (index < length && isOctalDigit(source[index])) {
+                                octal = true;
+                                code = code * 8 + '01234567'.indexOf(source[index++]);
+
+                                // 3 digits are only allowed when string starts
+                                // with 0, 1, 2, 3
+                                if ('0123'.indexOf(ch) >= 0 &&
+                                        index < length &&
+                                        isOctalDigit(source[index])) {
+                                    code = code * 8 + '01234567'.indexOf(source[index++]);
+                                }
+                            }
+                            str += String.fromCharCode(code);
+                        } else {
+                            str += ch;
+                        }
+                        break;
+                    }
+                } else {
+                    ++lineNumber;
+                    if (ch ===  '\r' && source[index] === '\n') {
+                        ++index;
+                    }
+                }
+            } else if (isLineTerminator(ch)) {
+                break;
+            } else {
+                str += ch;
+            }
+        }
+
+        if (quote !== '') {
+            throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+        }
+
+        return {
+            type: Token.StringLiteral,
+            value: str,
+            octal: octal,
+            lineNumber: lineNumber,
+            lineStart: lineStart,
+            range: [start, index]
+        };
+    }
+
+    function scanRegExp() {
+        var str, ch, start, pattern, flags, value, classMarker = false, restore, terminated = false;
+
+        buffer = null;
+        skipComment();
+
+        start = index;
+        ch = source[index];
+        assert(ch === '/', 'Regular expression literal must start with a slash');
+        str = source[index++];
+
+        while (index < length) {
+            ch = source[index++];
+            str += ch;
+            if (ch === '\\') {
+                ch = source[index++];
+                // ECMA-262 7.8.5
+                if (isLineTerminator(ch)) {
+                    throwError({}, Messages.UnterminatedRegExp);
+                }
+                str += ch;
+            } else if (classMarker) {
+                if (ch === ']') {
+                    classMarker = false;
+                }
+            } else {
+                if (ch === '/') {
+                    terminated = true;
+                    break;
+                } else if (ch === '[') {
+                    classMarker = true;
+                } else if (isLineTerminator(ch)) {
+                    throwError({}, Messages.UnterminatedRegExp);
+                }
+            }
+        }
+
+        if (!terminated) {
+            throwError({}, Messages.UnterminatedRegExp);
+        }
+
+        // Exclude leading and trailing slash.
+        pattern = str.substr(1, str.length - 2);
+
+        flags = '';
+        while (index < length) {
+            ch = source[index];
+            if (!isIdentifierPart(ch)) {
+                break;
+            }
+
+            ++index;
+            if (ch === '\\' && index < length) {
+                ch = source[index];
+                if (ch === 'u') {
+                    ++index;
+                    restore = index;
+                    ch = scanHexEscape('u');
+                    if (ch) {
+                        flags += ch;
+                        str += '\\u';
+                        for (; restore < index; ++restore) {
+                            str += source[restore];
+                        }
+                    } else {
+                        index = restore;
+                        flags += 'u';
+                        str += '\\u';
+                    }
+                } else {
+                    str += '\\';
+                }
+            } else {
+                flags += ch;
+                str += ch;
+            }
+        }
+
+        try {
+            value = new RegExp(pattern, flags);
+        } catch (e) {
+            throwError({}, Messages.InvalidRegExp);
+        }
+
+        return {
+            literal: str,
+            value: value,
+            range: [start, index]
+        };
+    }
+
+    function isIdentifierName(token) {
+        return token.type === Token.Identifier ||
+            token.type === Token.Keyword ||
+            token.type === Token.BooleanLiteral ||
+            token.type === Token.NullLiteral;
+    }
+
+    function advance() {
+        var ch, token;
+
+        skipComment();
+
+        if (index >= length) {
+            return {
+                type: Token.EOF,
+                lineNumber: lineNumber,
+                lineStart: lineStart,
+                range: [index, index]
+            };
+        }
+
+        token = scanPunctuator();
+        if (typeof token !== 'undefined') {
+            return token;
+        }
+
+        ch = source[index];
+
+        if (ch === '\'' || ch === '"') {
+            return scanStringLiteral();
+        }
+
+        if (ch === '.' || isDecimalDigit(ch)) {
+            return scanNumericLiteral();
+        }
+
+        token = scanIdentifier();
+        if (typeof token !== 'undefined') {
+            return token;
+        }
+
+        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+    }
+
+    function lex() {
+        var token;
+
+        if (buffer) {
+            index = buffer.range[1];
+            lineNumber = buffer.lineNumber;
+            lineStart = buffer.lineStart;
+            token = buffer;
+            buffer = null;
+            return token;
+        }
+
+        buffer = null;
+        return advance();
+    }
+
+    function lookahead() {
+        var pos, line, start;
+
+        if (buffer !== null) {
+            return buffer;
+        }
+
+        pos = index;
+        line = lineNumber;
+        start = lineStart;
+        buffer = advance();
+        index = pos;
+        lineNumber = line;
+        lineStart = start;
+
+        return buffer;
+    }
+
+    // Return true if there is a line terminator before the next token.
+
+    function peekLineTerminator() {
+        var pos, line, start, found;
+
+        pos = index;
+        line = lineNumber;
+        start = lineStart;
+        skipComment();
+        found = lineNumber !== line;
+        index = pos;
+        lineNumber = line;
+        lineStart = start;
+
+        return found;
+    }
+
+    // Throw an exception
+
+    function throwError(token, messageFormat) {
+        var error,
+            args = Array.prototype.slice.call(arguments, 2),
+            msg = messageFormat.replace(
+                /%(\d)/g,
+                function (whole, index) {
+                    return args[index] || '';
+                }
+            );
+
+        if (typeof token.lineNumber === 'number') {
+            error = new Error('Line ' + token.lineNumber + ': ' + msg);
+            error.index = token.range[0];
+            error.lineNumber = token.lineNumber;
+            error.column = token.range[0] - lineStart + 1;
+        } else {
+            error = new Error('Line ' + lineNumber + ': ' + msg);
+            error.index = index;
+            error.lineNumber = lineNumber;
+            error.column = index - lineStart + 1;
+        }
+
+        throw error;
+    }
+
+    function throwErrorTolerant() {
+        try {
+            throwError.apply(null, arguments);
+        } catch (e) {
+            if (extra.errors) {
+                extra.errors.push(e);
+            } else {
+                throw e;
+            }
+        }
+    }
+
+
+    // Throw an exception because of the token.
+
+    function throwUnexpected(token) {
+        if (token.type === Token.EOF) {
+            throwError(token, Messages.UnexpectedEOS);
+        }
+
+        if (token.type === Token.NumericLiteral) {
+            throwError(token, Messages.UnexpectedNumber);
+        }
+
+        if (token.type === Token.StringLiteral) {
+            throwError(token, Messages.UnexpectedString);
+        }
+
+        if (token.type === Token.Identifier) {
+            throwError(token, Messages.UnexpectedIdentifier);
+        }
+
+        if (token.type === Token.Keyword) {
+            if (isFutureReservedWord(token.value)) {
+                throwError(token, Messages.UnexpectedReserved);
+            } else if (strict && isStrictModeReservedWord(token.value)) {
+                throwErrorTolerant(token, Messages.StrictReservedWord);
+                return;
+            }
+            throwError(token, Messages.UnexpectedToken, token.value);
+        }
+
+        // BooleanLiteral, NullLiteral, or Punctuator.
+        throwError(token, Messages.UnexpectedToken, token.value);
+    }
+
+    // Expect the next token to match the specified punctuator.
+    // If not, an exception will be thrown.
+
+    function expect(value) {
+        var token = lex();
+        if (token.type !== Token.Punctuator || token.value !== value) {
+            throwUnexpected(token);
+        }
+    }
+
+    // Expect the next token to match the specified keyword.
+    // If not, an exception will be thrown.
+
+    function expectKeyword(keyword) {
+        var token = lex();
+        if (token.type !== Token.Keyword || token.value !== keyword) {
+            throwUnexpected(token);
+        }
+    }
+
+    // Return true if the next token matches the specified punctuator.
+
+    function match(value) {
+        var token = lookahead();
+        return token.type === Token.Punctuator && token.value === value;
+    }
+
+    // Return true if the next token matches the specified keyword
+
+    function matchKeyword(keyword) {
+        var token = lookahead();
+        return token.type === Token.Keyword && token.value === keyword;
+    }
+
+    // Return true if the next token is an assignment operator
+
+    function matchAssign() {
+        var token = lookahead(),
+            op = token.value;
+
+        if (token.type !== Token.Punctuator) {
+            return false;
+        }
+        return op === '=' ||
+            op === '*=' ||
+            op === '/=' ||
+            op === '%=' ||
+            op === '+=' ||
+            op === '-=' ||
+            op === '<<=' ||
+            op === '>>=' ||
+            op === '>>>=' ||
+            op === '&=' ||
+            op === '^=' ||
+            op === '|=';
+    }
+
+    function consumeSemicolon() {
+        var token, line;
+
+        // Catch the very common case first.
+        if (source[index] === ';') {
+            lex();
+            return;
+        }
+
+        line = lineNumber;
+        skipComment();
+        if (lineNumber !== line) {
+            return;
+        }
+
+        if (match(';')) {
+            lex();
+            return;
+        }
+
+        token = lookahead();
+        if (token.type !== Token.EOF && !match('}')) {
+            throwUnexpected(token);
+        }
+    }
+
+    // Return true if provided expression is LeftHandSideExpression
+
+    function isLeftHandSide(expr) {
+        return expr.type === Syntax.Identifier || expr.type === Syntax.MemberExpression;
+    }
+
+    // 11.1.4 Array Initialiser
+
+    function parseArrayInitialiser() {
+        var elements = [];
+
+        expect('[');
+
+        while (!match(']')) {
+            if (match(',')) {
+                lex();
+                elements.push(null);
+            } else {
+                elements.push(parseAssignmentExpression());
+
+                if (!match(']')) {
+                    expect(',');
+                }
+            }
+        }
+
+        expect(']');
+
+        return {
+            type: Syntax.ArrayExpression,
+            elements: elements
+        };
+    }
+
+    // 11.1.5 Object Initialiser
+
+    function parsePropertyFunction(param, first) {
+        var previousStrict, body;
+
+        previousStrict = strict;
+        body = parseFunctionSourceElements();
+        if (first && strict && isRestrictedWord(param[0].name)) {
+            throwErrorTolerant(first, Messages.StrictParamName);
+        }
+        strict = previousStrict;
+
+        return {
+            type: Syntax.FunctionExpression,
+            id: null,
+            params: param,
+            defaults: [],
+            body: body,
+            rest: null,
+            generator: false,
+            expression: false
+        };
+    }
+
+    function parseObjectPropertyKey() {
+        var token = lex();
+
+        // Note: This function is called only from parseObjectProperty(), where
+        // EOF and Punctuator tokens are already filtered out.
+
+        if (token.type === Token.StringLiteral || token.type === Token.NumericLiteral) {
+            if (strict && token.octal) {
+                throwErrorTolerant(token, Messages.StrictOctalLiteral);
+            }
+            return createLiteral(token);
+        }
+
+        return {
+            type: Syntax.Identifier,
+            name: token.value
+        };
+    }
+
+    function parseObjectProperty() {
+        var token, key, id, param;
+
+        token = lookahead();
+
+        if (token.type === Token.Identifier) {
+
+            id = parseObjectPropertyKey();
+
+            // Property Assignment: Getter and Setter.
+
+            if (token.value === 'get' && !match(':')) {
+                key = parseObjectPropertyKey();
+                expect('(');
+                expect(')');
+                return {
+                    type: Syntax.Property,
+                    key: key,
+                    value: parsePropertyFunction([]),
+                    kind: 'get'
+                };
+            } else if (token.value === 'set' && !match(':')) {
+                key = parseObjectPropertyKey();
+                expect('(');
+                token = lookahead();
+                if (token.type !== Token.Identifier) {
+                    expect(')');
+                    throwErrorTolerant(token, Messages.UnexpectedToken, token.value);
+                    return {
+                        type: Syntax.Property,
+                        key: key,
+                        value: parsePropertyFunction([]),
+                        kind: 'set'
+                    };
+                } else {
+                    param = [ parseVariableIdentifier() ];
+                    expect(')');
+                    return {
+                        type: Syntax.Property,
+                        key: key,
+                        value: parsePropertyFunction(param, token),
+                        kind: 'set'
+                    };
+                }
+            } else {
+                expect(':');
+                return {
+                    type: Syntax.Property,
+                    key: id,
+                    value: parseAssignmentExpression(),
+                    kind: 'init'
+                };
+            }
+        } else if (token.type === Token.EOF || token.type === Token.Punctuator) {
+            throwUnexpected(token);
+        } else {
+            key = parseObjectPropertyKey();
+            expect(':');
+            return {
+                type: Syntax.Property,
+                key: key,
+                value: parseAssignmentExpression(),
+                kind: 'init'
+            };
+        }
+    }
+
+    function parseObjectInitialiser() {
+        var properties = [], property, name, kind, map = {}, toString = String;
+
+        expect('{');
+
+        while (!match('}')) {
+            property = parseObjectProperty();
+
+            if (property.key.type === Syntax.Identifier) {
+                name = property.key.name;
+            } else {
+                name = toString(property.key.value);
+            }
+            kind = (property.kind === 'init') ? PropertyKind.Data : (property.kind === 'get') ? PropertyKind.Get : PropertyKind.Set;
+            if (Object.prototype.hasOwnProperty.call(map, name)) {
+                if (map[name] === PropertyKind.Data) {
+                    if (strict && kind === PropertyKind.Data) {
+                        throwErrorTolerant({}, Messages.StrictDuplicateProperty);
+                    } else if (kind !== PropertyKind.Data) {
+                        throwErrorTolerant({}, Messages.AccessorDataProperty);
+                    }
+                } else {
+                    if (kind === PropertyKind.Data) {
+                        throwErrorTolerant({}, Messages.AccessorDataProperty);
+                    } else if (map[name] & kind) {
+                        throwErrorTolerant({}, Messages.AccessorGetSet);
+                    }
+                }
+                map[name] |= kind;
+            } else {
+                map[name] = kind;
+            }
+
+            properties.push(property);
+
+            if (!match('}')) {
+                expect(',');
+            }
+        }
+
+        expect('}');
+
+        return {
+            type: Syntax.ObjectExpression,
+            properties: properties
+        };
+    }
+
+    // 11.1.6 The Grouping Operator
+
+    function parseGroupExpression() {
+        var expr;
+
+        expect('(');
+
+        expr = parseExpression();
+
+        expect(')');
+
+        return expr;
+    }
+
+
+    // 11.1 Primary Expressions
+
+    function parsePrimaryExpression() {
+        var token = lookahead(),
+            type = token.type;
+
+        if (type === Token.Identifier) {
+            return {
+                type: Syntax.Identifier,
+                name: lex().value
+            };
+        }
+
+        if (type === Token.StringLiteral || type === Token.NumericLiteral) {
+            if (strict && token.octal) {
+                throwErrorTolerant(token, Messages.StrictOctalLiteral);
+            }
+            return createLiteral(lex());
+        }
+
+        if (type === Token.Keyword) {
+            if (matchKeyword('this')) {
+                lex();
+                return {
+                    type: Syntax.ThisExpression
+                };
+            }
+
+            if (matchKeyword('function')) {
+                return parseFunctionExpression();
+            }
+        }
+
+        if (type === Token.BooleanLiteral) {
+            lex();
+            token.value = (token.value === 'true');
+            return createLiteral(token);
+        }
+
+        if (type === Token.NullLiteral) {
+            lex();
+            token.value = null;
+            return createLiteral(token);
+        }
+
+        if (match('[')) {
+            return parseArrayInitialiser();
+        }
+
+        if (match('{')) {
+            return parseObjectInitialiser();
+        }
+
+        if (match('(')) {
+            return parseGroupExpression();
+        }
+
+        if (match('/') || match('/=')) {
+            return createLiteral(scanRegExp());
+        }
+
+        return throwUnexpected(lex());
+    }
+
+    // 11.2 Left-Hand-Side Expressions
+
+    function parseArguments() {
+        var args = [];
+
+        expect('(');
+
+        if (!match(')')) {
+            while (index < length) {
+                args.push(parseAssignmentExpression());
+                if (match(')')) {
+                    break;
+                }
+                expect(',');
+            }
+        }
+
+        expect(')');
+
+        return args;
+    }
+
+    function parseNonComputedProperty() {
+        var token = lex();
+
+        if (!isIdentifierName(token)) {
+            throwUnexpected(token);
+        }
+
+        return {
+            type: Syntax.Identifier,
+            name: token.value
+        };
+    }
+
+    function parseNonComputedMember() {
+        expect('.');
+
+        return parseNonComputedProperty();
+    }
+
+    function parseComputedMember() {
+        var expr;
+
+        expect('[');
+
+        expr = parseExpression();
+
+        expect(']');
+
+        return expr;
+    }
+
+    function parseNewExpression() {
+        var expr;
+
+        expectKeyword('new');
+
+        expr = {
+            type: Syntax.NewExpression,
+            callee: parseLeftHandSideExpression(),
+            'arguments': []
+        };
+
+        if (match('(')) {
+            expr['arguments'] = parseArguments();
+        }
+
+        return expr;
+    }
+
+    function parseLeftHandSideExpressionAllowCall() {
+        var expr;
+
+        expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
+
+        while (match('.') || match('[') || match('(')) {
+            if (match('(')) {
+                expr = {
+                    type: Syntax.CallExpression,
+                    callee: expr,
+                    'arguments': parseArguments()
+                };
+            } else if (match('[')) {
+                expr = {
+                    type: Syntax.MemberExpression,
+                    computed: true,
+                    object: expr,
+                    property: parseComputedMember()
+                };
+            } else {
+                expr = {
+                    type: Syntax.MemberExpression,
+                    computed: false,
+                    object: expr,
+                    property: parseNonComputedMember()
+                };
+            }
+        }
+
+        return expr;
+    }
+
+
+    function parseLeftHandSideExpression() {
+        var expr;
+
+        expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
+
+        while (match('.') || match('[')) {
+            if (match('[')) {
+                expr = {
+                    type: Syntax.MemberExpression,
+                    computed: true,
+                    object: expr,
+                    property: parseComputedMember()
+                };
+            } else {
+                expr = {
+                    type: Syntax.MemberExpression,
+                    computed: false,
+                    object: expr,
+                    property: parseNonComputedMember()
+                };
+            }
+        }
+
+        return expr;
+    }
+
+    // 11.3 Postfix Expressions
+
+    function parsePostfixExpression() {
+        var expr = parseLeftHandSideExpressionAllowCall(), token;
+
+        token = lookahead();
+        if (token.type !== Token.Punctuator) {
+            return expr;
+        }
+
+        if ((match('++') || match('--')) && !peekLineTerminator()) {
+            // 11.3.1, 11.3.2
+            if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
+                throwErrorTolerant({}, Messages.StrictLHSPostfix);
+            }
+            if (!isLeftHandSide(expr)) {
+                throwErrorTolerant({}, Messages.InvalidLHSInAssignment);
+            }
+
+            expr = {
+                type: Syntax.UpdateExpression,
+                operator: lex().value,
+                argument: expr,
+                prefix: false
+            };
+        }
+
+        return expr;
+    }
+
+    // 11.4 Unary Operators
+
+    function parseUnaryExpression() {
+        var token, expr;
+
+        token = lookahead();
+        if (token.type !== Token.Punctuator && token.type !== Token.Keyword) {
+            return parsePostfixExpression();
+        }
+
+        if (match('++') || match('--')) {
+            token = lex();
+            expr = parseUnaryExpression();
+            // 11.4.4, 11.4.5
+            if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
+                throwErrorTolerant({}, Messages.StrictLHSPrefix);
+            }
+
+            if (!isLeftHandSide(expr)) {
+                throwErrorTolerant({}, Messages.InvalidLHSInAssignment);
+            }
+
+            expr = {
+                type: Syntax.UpdateExpression,
+                operator: token.value,
+                argument: expr,
+                prefix: true
+            };
+            return expr;
+        }
+
+        if (match('+') || match('-') || match('~') || match('!')) {
+            expr = {
+                type: Syntax.UnaryExpression,
+                operator: lex().value,
+                argument: parseUnaryExpression(),
+                prefix: true
+            };
+            return expr;
+        }
+
+        if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) {
+            expr = {
+                type: Syntax.UnaryExpression,
+                operator: lex().value,
+                argument: parseUnaryExpression(),
+                prefix: true
+            };
+            if (strict && expr.operator === 'delete' && expr.argument.type === Syntax.Identifier) {
+                throwErrorTolerant({}, Messages.StrictDelete);
+            }
+            return expr;
+        }
+
+        return parsePostfixExpression();
+    }
+
+    // 11.5 Multiplicative Operators
+
+    function parseMultiplicativeExpression() {
+        var expr = parseUnaryExpression();
+
+        while (match('*') || match('/') || match('%')) {
+            expr = {
+                type: Syntax.BinaryExpression,
+                operator: lex().value,
+                left: expr,
+                right: parseUnaryExpression()
+            };
+        }
+
+        return expr;
+    }
+
+    // 11.6 Additive Operators
+
+    function parseAdditiveExpression() {
+        var expr = parseMultiplicativeExpression();
+
+        while (match('+') || match('-')) {
+            expr = {
+                type: Syntax.BinaryExpression,
+                operator: lex().value,
+                left: expr,
+                right: parseMultiplicativeExpression()
+            };
+        }
+
+        return expr;
+    }
+
+    // 11.7 Bitwise Shift Operators
+
+    function parseShiftExpression() {
+        var expr = parseAdditiveExpression();
+
+        while (match('<<') || match('>>') || match('>>>')) {
+            expr = {
+                type: Syntax.BinaryExpression,
+                operator: lex().value,
+                left: expr,
+                right: parseAdditiveExpression()
+            };
+        }
+
+        return expr;
+    }
+    // 11.8 Relational Operators
+
+    function parseRelationalExpression() {
+        var expr, previousAllowIn;
+
+        previousAllowIn = state.allowIn;
+        state.allowIn = true;
+
+        expr = parseShiftExpression();
+
+        while (match('<') || match('>') || match('<=') || match('>=') || (previousAllowIn && matchKeyword('in')) || matchKeyword('instanceof')) {
+            expr = {
+                type: Syntax.BinaryExpression,
+                operator: lex().value,
+                left: expr,
+                right: parseShiftExpression()
+            };
+        }
+
+        state.allowIn = previousAllowIn;
+        return expr;
+    }
+
+    // 11.9 Equality Operators
+
+    function parseEqualityExpression() {
+        var expr = parseRelationalExpression();
+
+        while (match('==') || match('!=') || match('===') || match('!==')) {
+            expr = {
+                type: Syntax.BinaryExpression,
+                operator: lex().value,
+                left: expr,
+                right: parseRelationalExpression()
+            };
+        }
+
+        return expr;
+    }
+
+    // 11.10 Binary Bitwise Operators
+
+    function parseBitwiseANDExpression() {
+        var expr = parseEqualityExpression();
+
+        while (match('&')) {
+            lex();
+            expr = {
+                type: Syntax.BinaryExpression,
+                operator: '&',
+                left: expr,
+                right: parseEqualityExpression()
+            };
+        }
+
+        return expr;
+    }
+
+    function parseBitwiseXORExpression() {
+        var expr = parseBitwiseANDExpression();
+
+        while (match('^')) {
+            lex();
+            expr = {
+                type: Syntax.BinaryExpression,
+                operator: '^',
+                left: expr,
+                right: parseBitwiseANDExpression()
+            };
+        }
+
+        return expr;
+    }
+
+    function parseBitwiseORExpression() {
+        var expr = parseBitwiseXORExpression();
+
+        while (match('|')) {
+            lex();
+            expr = {
+                type: Syntax.BinaryExpression,
+                operator: '|',
+                left: expr,
+                right: parseBitwiseXORExpression()
+            };
+        }
+
+        return expr;
+    }
+
+    // 11.11 Binary Logical Operators
+
+    function parseLogicalANDExpression() {
+        var expr = parseBitwiseORExpression();
+
+        while (match('&&')) {
+            lex();
+            expr = {
+                type: Syntax.LogicalExpression,
+                operator: '&&',
+                left: expr,
+                right: parseBitwiseORExpression()
+            };
+        }
+
+        return expr;
+    }
+
+    function parseLogicalORExpression() {
+        var expr = parseLogicalANDExpression();
+
+        while (match('||')) {
+            lex();
+            expr = {
+                type: Syntax.LogicalExpression,
+                operator: '||',
+                left: expr,
+                right: parseLogicalANDExpression()
+            };
+        }
+
+        return expr;
+    }
+
+    // 11.12 Conditional Operator
+
+    function parseConditionalExpression() {
+        var expr, previousAllowIn, consequent;
+
+        expr = parseLogicalORExpression();
+
+        if (match('?')) {
+            lex();
+            previousAllowIn = state.allowIn;
+            state.allowIn = true;
+            consequent = parseAssignmentExpression();
+            state.allowIn = previousAllowIn;
+            expect(':');
+
+            expr = {
+                type: Syntax.ConditionalExpression,
+                test: expr,
+                consequent: consequent,
+                alternate: parseAssignmentExpression()
+            };
+        }
+
+        return expr;
+    }
+
+    // 11.13 Assignment Operators
+
+    function parseAssignmentExpression() {
+        var token, expr;
+
+        token = lookahead();
+        expr = parseConditionalExpression();
+
+        if (matchAssign()) {
+            // LeftHandSideExpression
+            if (!isLeftHandSide(expr)) {
+                throwErrorTolerant({}, Messages.InvalidLHSInAssignment);
+            }
+
+            // 11.13.1
+            if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
+                throwErrorTolerant(token, Messages.StrictLHSAssignment);
+            }
+
+            expr = {
+                type: Syntax.AssignmentExpression,
+                operator: lex().value,
+                left: expr,
+                right: parseAssignmentExpression()
+            };
+        }
+
+        return expr;
+    }
+
+    // 11.14 Comma Operator
+
+    function parseExpression() {
+        var expr = parseAssignmentExpression();
+
+        if (match(',')) {
+            expr = {
+                type: Syntax.SequenceExpression,
+                expressions: [ expr ]
+            };
+
+            while (index < length) {
+                if (!match(',')) {
+                    break;
+                }
+                lex();
+                expr.expressions.push(parseAssignmentExpression());
+            }
+
+        }
+        return expr;
+    }
+
+    // 12.1 Block
+
+    function parseStatementList() {
+        var list = [],
+            statement;
+
+        while (index < length) {
+            if (match('}')) {
+                break;
+            }
+            statement = parseSourceElement();
+            if (typeof statement === 'undefined') {
+                break;
+            }
+            list.push(statement);
+        }
+
+        return list;
+    }
+
+    function parseBlock() {
+        var block;
+
+        expect('{');
+
+        block = parseStatementList();
+
+        expect('}');
+
+        return {
+            type: Syntax.BlockStatement,
+            body: block
+        };
+    }
+
+    // 12.2 Variable Statement
+
+    function parseVariableIdentifier() {
+        var token = lex();
+
+        if (token.type !== Token.Identifier) {
+            throwUnexpected(token);
+        }
+
+        return {
+            type: Syntax.Identifier,
+            name: token.value
+        };
+    }
+
+    function parseVariableDeclaration(kind) {
+        var id = parseVariableIdentifier(),
+            init = null;
+
+        // 12.2.1
+        if (strict && isRestrictedWord(id.name)) {
+            throwErrorTolerant({}, Messages.StrictVarName);
+        }
+
+        if (kind === 'const') {
+            expect('=');
+            init = parseAssignmentExpression();
+        } else if (match('=')) {
+            lex();
+            init = parseAssignmentExpression();
+        }
+
+        return {
+            type: Syntax.VariableDeclarator,
+            id: id,
+            init: init
+        };
+    }
+
+    function parseVariableDeclarationList(kind) {
+        var list = [];
+
+        do {
+            list.push(parseVariableDeclaration(kind));
+            if (!match(',')) {
+                break;
+            }
+            lex();
+        } while (index < length);
+
+        return list;
+    }
+
+    function parseVariableStatement() {
+        var declarations;
+
+        expectKeyword('var');
+
+        declarations = parseVariableDeclarationList();
+
+        consumeSemicolon();
+
+        return {
+            type: Syntax.VariableDeclaration,
+            declarations: declarations,
+            kind: 'var'
+        };
+    }
+
+    // kind may be `const` or `let`
+    // Both are experimental and not in the specification yet.
+    // see http://wiki.ecmascript.org/doku.php?id=harmony:const
+    // and http://wiki.ecmascript.org/doku.php?id=harmony:let
+    function parseConstLetDeclaration(kind) {
+        var declarations;
+
+        expectKeyword(kind);
+
+        declarations = parseVariableDeclarationList(kind);
+
+        consumeSemicolon();
+
+        return {
+            type: Syntax.VariableDeclaration,
+            declarations: declarations,
+            kind: kind
+        };
+    }
+
+    // 12.3 Empty Statement
+
+    function parseEmptyStatement() {
+        expect(';');
+
+        return {
+            type: Syntax.EmptyStatement
+        };
+    }
+
+    // 12.4 Expression Statement
+
+    function parseExpressionStatement() {
+        var expr = parseExpression();
+
+        consumeSemicolon();
+
+        return {
+            type: Syntax.ExpressionStatement,
+            expression: expr
+        };
+    }
+
+    // 12.5 If statement
+
+    function parseIfStatement() {
+        var test, consequent, alternate;
+
+        expectKeyword('if');
+
+        expect('(');
+
+        test = parseExpression();
+
+        expect(')');
+
+        consequent = parseStatement();
+
+        if (matchKeyword('else')) {
+            lex();
+            alternate = parseStatement();
+        } else {
+            alternate = null;
+        }
+
+        return {
+            type: Syntax.IfStatement,
+            test: test,
+            consequent: consequent,
+            alternate: alternate
+        };
+    }
+
+    // 12.6 Iteration Statements
+
+    function parseDoWhileStatement() {
+        var body, test, oldInIteration;
+
+        expectKeyword('do');
+
+        oldInIteration = state.inIteration;
+        state.inIteration = true;
+
+        body = parseStatement();
+
+        state.inIteration = oldInIteration;
+
+        expectKeyword('while');
+
+        expect('(');
+
+        test = parseExpression();
+
+        expect(')');
+
+        if (match(';')) {
+            lex();
+        }
+
+        return {
+            type: Syntax.DoWhileStatement,
+            body: body,
+            test: test
+        };
+    }
+
+    function parseWhileStatement() {
+        var test, body, oldInIteration;
+
+        expectKeyword('while');
+
+        expect('(');
+
+        test = parseExpression();
+
+        expect(')');
+
+        oldInIteration = state.inIteration;
+        state.inIteration = true;
+
+        body = parseStatement();
+
+        state.inIteration = oldInIteration;
+
+        return {
+            type: Syntax.WhileStatement,
+            test: test,
+            body: body
+        };
+    }
+
+    function parseForVariableDeclaration() {
+        var token = lex();
+
+        return {
+            type: Syntax.VariableDeclaration,
+            declarations: parseVariableDeclarationList(),
+            kind: token.value
+        };
+    }
+
+    function parseForStatement() {
+        var init, test, update, left, right, body, oldInIteration;
+
+        init = test = update = null;
+
+        expectKeyword('for');
+
+        expect('(');
+
+        if (match(';')) {
+            lex();
+        } else {
+            if (matchKeyword('var') || matchKeyword('let')) {
+                state.allowIn = false;
+                init = parseForVariableDeclaration();
+                state.allowIn = true;
+
+                if (init.declarations.length === 1 && matchKeyword('in')) {
+                    lex();
+                    left = init;
+                    right = parseExpression();
+                    init = null;
+                }
+            } else {
+                state.allowIn = false;
+                init = parseExpression();
+                state.allowIn = true;
+
+                if (matchKeyword('in')) {
+                    // LeftHandSideExpression
+                    if (!isLeftHandSide(init)) {
+                        throwErrorTolerant({}, Messages.InvalidLHSInForIn);
+                    }
+
+                    lex();
+                    left = init;
+                    right = parseExpression();
+                    init = null;
+                }
+            }
+
+            if (typeof left === 'undefined') {
+                expect(';');
+            }
+        }
+
+        if (typeof left === 'undefined') {
+
+            if (!match(';')) {
+                test = parseExpression();
+            }
+            expect(';');
+
+            if (!match(')')) {
+                update = parseExpression();
+            }
+        }
+
+        expect(')');
+
+        oldInIteration = state.inIteration;
+        state.inIteration = true;
+
+        body = parseStatement();
+
+        state.inIteration = oldInIteration;
+
+        if (typeof left === 'undefined') {
+            return {
+                type: Syntax.ForStatement,
+                init: init,
+                test: test,
+                update: update,
+                body: body
+            };
+        }
+
+        return {
+            type: Syntax.ForInStatement,
+            left: left,
+            right: right,
+            body: body,
+            each: false
+        };
+    }
+
+    // 12.7 The continue statement
+
+    function parseContinueStatement() {
+        var token, label = null;
+
+        expectKeyword('continue');
+
+        // Optimize the most common form: 'continue;'.
+        if (source[index] === ';') {
+            lex();
+
+            if (!state.inIteration) {
+                throwError({}, Messages.IllegalContinue);
+            }
+
+            return {
+                type: Syntax.ContinueStatement,
+                label: null
+            };
+        }
+
+        if (peekLineTerminator()) {
+            if (!state.inIteration) {
+                throwError({}, Messages.IllegalContinue);
+            }
+
+            return {
+                type: Syntax.ContinueStatement,
+                label: null
+            };
+        }
+
+        token = lookahead();
+        if (token.type === Token.Identifier) {
+            label = parseVariableIdentifier();
+
+            if (!Object.prototype.hasOwnProperty.call(state.labelSet, label.name)) {
+                throwError({}, Messages.UnknownLabel, label.name);
+            }
+        }
+
+        consumeSemicolon();
+
+        if (label === null && !state.inIteration) {
+            throwError({}, Messages.IllegalContinue);
+        }
+
+        return {
+            type: Syntax.ContinueStatement,
+            label: label
+        };
+    }
+
+    // 12.8 The break statement
+
+    function parseBreakStatement() {
+        var token, label = null;
+
+        expectKeyword('break');
+
+        // Optimize the most common form: 'break;'.
+        if (source[index] === ';') {
+            lex();
+
+            if (!(state.inIteration || state.inSwitch)) {
+                throwError({}, Messages.IllegalBreak);
+            }
+
+            return {
+                type: Syntax.BreakStatement,
+                label: null
+            };
+        }
+
+        if (peekLineTerminator()) {
+            if (!(state.inIteration || state.inSwitch)) {
+                throwError({}, Messages.IllegalBreak);
+            }
+
+            return {
+                type: Syntax.BreakStatement,
+                label: null
+            };
+        }
+
+        token = lookahead();
+        if (token.type === Token.Identifier) {
+            label = parseVariableIdentifier();
+
+            if (!Object.prototype.hasOwnProperty.call(state.labelSet, label.name)) {
+                throwError({}, Messages.UnknownLabel, label.name);
+            }
+        }
+
+        consumeSemicolon();
+
+        if (label === null && !(state.inIteration || state.inSwitch)) {
+            throwError({}, Messages.IllegalBreak);
+        }
+
+        return {
+            type: Syntax.BreakStatement,
+            label: label
+        };
+    }
+
+    // 12.9 The return statement
+
+    function parseReturnStatement() {
+        var token, argument = null;
+
+        expectKeyword('return');
+
+        if (!state.inFunctionBody) {
+            throwErrorTolerant({}, Messages.IllegalReturn);
+        }
+
+        // 'return' followed by a space and an identifier is very common.
+        if (source[index] === ' ') {
+            if (isIdentifierStart(source[index + 1])) {
+                argument = parseExpression();
+                consumeSemicolon();
+                return {
+                    type: Syntax.ReturnStatement,
+                    argument: argument
+                };
+            }
+        }
+
+        if (peekLineTerminator()) {
+            return {
+                type: Syntax.ReturnStatement,
+                argument: null
+            };
+        }
+
+        if (!match(';')) {
+            token = lookahead();
+            if (!match('}') && token.type !== Token.EOF) {
+                argument = parseExpression();
+            }
+        }
+
+        consumeSemicolon();
+
+        return {
+            type: Syntax.ReturnStatement,
+            argument: argument
+        };
+    }
+
+    // 12.10 The with statement
+
+    function parseWithStatement() {
+        var object, body;
+
+        if (strict) {
+            throwErrorTolerant({}, Messages.StrictModeWith);
+        }
+
+        expectKeyword('with');
+
+        expect('(');
+
+        object = parseExpression();
+
+        expect(')');
+
+        body = parseStatement();
+
+        return {
+            type: Syntax.WithStatement,
+            object: object,
+            body: body
+        };
+    }
+
+    // 12.10 The swith statement
+
+    function parseSwitchCase() {
+        var test,
+            consequent = [],
+            statement;
+
+        if (matchKeyword('default')) {
+            lex();
+            test = null;
+        } else {
+            expectKeyword('case');
+            test = parseExpression();
+        }
+        expect(':');
+
+        while (index < length) {
+            if (match('}') || matchKeyword('default') || matchKeyword('case')) {
+                break;
+            }
+            statement = parseStatement();
+            if (typeof statement === 'undefined') {
+                break;
+            }
+            consequent.push(statement);
+        }
+
+        return {
+            type: Syntax.SwitchCase,
+            test: test,
+            consequent: consequent
+        };
+    }
+
+    function parseSwitchStatement() {
+        var discriminant, cases, clause, oldInSwitch, defaultFound;
+
+        expectKeyword('switch');
+
+        expect('(');
+
+        discriminant = parseExpression();
+
+        expect(')');
+
+        expect('{');
+
+        cases = [];
+
+        if (match('}')) {
+            lex();
+            return {
+                type: Syntax.SwitchStatement,
+                discriminant: discriminant,
+                cases: cases
+            };
+        }
+
+        oldInSwitch = state.inSwitch;
+        state.inSwitch = true;
+        defaultFound = false;
+
+        while (index < length) {
+            if (match('}')) {
+                break;
+            }
+            clause = parseSwitchCase();
+            if (clause.test === null) {
+                if (defaultFound) {
+                    throwError({}, Messages.MultipleDefaultsInSwitch);
+                }
+                defaultFound = true;
+            }
+            cases.push(clause);
+        }
+
+        state.inSwitch = oldInSwitch;
+
+        expect('}');
+
+        return {
+            type: Syntax.SwitchStatement,
+            discriminant: discriminant,
+            cases: cases
+        };
+    }
+
+    // 12.13 The throw statement
+
+    function parseThrowStatement() {
+        var argument;
+
+        expectKeyword('throw');
+
+        if (peekLineTerminator()) {
+            throwError({}, Messages.NewlineAfterThrow);
+        }
+
+        argument = parseExpression();
+
+        consumeSemicolon();
+
+        return {
+            type: Syntax.ThrowStatement,
+            argument: argument
+        };
+    }
+
+    // 12.14 The try statement
+
+    function parseCatchClause() {
+        var param;
+
+        expectKeyword('catch');
+
+        expect('(');
+        if (match(')')) {
+            throwUnexpected(lookahead());
+        }
+
+        param = parseVariableIdentifier();
+        // 12.14.1
+        if (strict && isRestrictedWord(param.name)) {
+            throwErrorTolerant({}, Messages.StrictCatchVariable);
+        }
+
+        expect(')');
+
+        return {
+            type: Syntax.CatchClause,
+            param: param,
+            body: parseBlock()
+        };
+    }
+
+    function parseTryStatement() {
+        var block, handlers = [], finalizer = null;
+
+        expectKeyword('try');
+
+        block = parseBlock();
+
+        if (matchKeyword('catch')) {
+            handlers.push(parseCatchClause());
+        }
+
+        if (matchKeyword('finally')) {
+            lex();
+            finalizer = parseBlock();
+        }
+
+        if (handlers.length === 0 && !finalizer) {
+            throwError({}, Messages.NoCatchOrFinally);
+        }
+
+        return {
+            type: Syntax.TryStatement,
+            block: block,
+            guardedHandlers: [],
+            handlers: handlers,
+            finalizer: finalizer
+        };
+    }
+
+    // 12.15 The debugger statement
+
+    function parseDebuggerStatement() {
+        expectKeyword('debugger');
+
+        consumeSemicolon();
+
+        return {
+            type: Syntax.DebuggerStatement
+        };
+    }
+
+    // 12 Statements
+
+    function parseStatement() {
+        var token = lookahead(),
+            expr,
+            labeledBody;
+
+        if (token.type === Token.EOF) {
+            throwUnexpected(token);
+        }
+
+        if (token.type === Token.Punctuator) {
+            switch (token.value) {
+            case ';':
+                return parseEmptyStatement();
+            case '{':
+                return parseBlock();
+            case '(':
+                return parseExpressionStatement();
+            default:
+                break;
+            }
+        }
+
+        if (token.type === Token.Keyword) {
+            switch (token.value) {
+            case 'break':
+                return parseBreakStatement();
+            case 'continue':
+                return parseContinueStatement();
+            case 'debugger':
+                return parseDebuggerStatement();
+            case 'do':
+                return parseDoWhileStatement();
+            case 'for':
+                return parseForStatement();
+            case 'function':
+                return parseFunctionDeclaration();
+            case 'if':
+                return parseIfStatement();
+            case 'return':
+                return parseReturnStatement();
+            case 'switch':
+                return parseSwitchStatement();
+            case 'throw':
+                return parseThrowStatement();
+            case 'try':
+                return parseTryStatement();
+            case 'var':
+                return parseVariableStatement();
+            case 'while':
+                return parseWhileStatement();
+            case 'with':
+                return parseWithStatement();
+            default:
+                break;
+            }
+        }
+
+        expr = parseExpression();
+
+        // 12.12 Labelled Statements
+        if ((expr.type === Syntax.Identifier) && match(':')) {
+            lex();
+
+            if (Object.prototype.hasOwnProperty.call(state.labelSet, expr.name)) {
+                throwError({}, Messages.Redeclaration, 'Label', expr.name);
+            }
+
+            state.labelSet[expr.name] = true;
+            labeledBody = parseStatement();
+            delete state.labelSet[expr.name];
+
+            return {
+                type: Syntax.LabeledStatement,
+                label: expr,
+                body: labeledBody
+            };
+        }
+
+        consumeSemicolon();
+
+        return {
+            type: Syntax.ExpressionStatement,
+            expression: expr
+        };
+    }
+
+    // 13 Function Definition
+
+    function parseFunctionSourceElements() {
+        var sourceElement, sourceElements = [], token, directive, firstRestricted,
+            oldLabelSet, oldInIteration, oldInSwitch, oldInFunctionBody;
+
+        expect('{');
+
+        while (index < length) {
+            token = lookahead();
+            if (token.type !== Token.StringLiteral) {
+                break;
+            }
+
+            sourceElement = parseSourceElement();
+            sourceElements.push(sourceElement);
+            if (sourceElement.expression.type !== Syntax.Literal) {
+                // this is not directive
+                break;
+            }
+            directive = sliceSource(token.range[0] + 1, token.range[1] - 1);
+            if (directive === 'use strict') {
+                strict = true;
+                if (firstRestricted) {
+                    throwErrorTolerant(firstRestricted, Messages.StrictOctalLiteral);
+                }
+            } else {
+                if (!firstRestricted && token.octal) {
+                    firstRestricted = token;
+                }
+            }
+        }
+
+        oldLabelSet = state.labelSet;
+        oldInIteration = state.inIteration;
+        oldInSwitch = state.inSwitch;
+        oldInFunctionBody = state.inFunctionBody;
+
+        state.labelSet = {};
+        state.inIteration = false;
+        state.inSwitch = false;
+        state.inFunctionBody = true;
+
+        while (index < length) {
+            if (match('}')) {
+                break;
+            }
+            sourceElement = parseSourceElement();
+            if (typeof sourceElement === 'undefined') {
+                break;
+            }
+            sourceElements.push(sourceElement);
+        }
+
+        expect('}');
+
+        state.labelSet = oldLabelSet;
+        state.inIteration = oldInIteration;
+        state.inSwitch = oldInSwitch;
+        state.inFunctionBody = oldInFunctionBody;
+
+        return {
+            type: Syntax.BlockStatement,
+            body: sourceElements
+        };
+    }
+
+    function parseFunctionDeclaration() {
+        var id, param, params = [], body, token, stricted, firstRestricted, message, previousStrict, paramSet;
+
+        expectKeyword('function');
+        token = lookahead();
+        id = parseVariableIdentifier();
+        if (strict) {
+            if (isRestrictedWord(token.value)) {
+                throwErrorTolerant(token, Messages.StrictFunctionName);
+            }
+        } else {
+            if (isRestrictedWord(token.value)) {
+                firstRestricted = token;
+                message = Messages.StrictFunctionName;
+            } else if (isStrictModeReservedWord(token.value)) {
+                firstRestricted = token;
+                message = Messages.StrictReservedWord;
+            }
+        }
+
+        expect('(');
+
+        if (!match(')')) {
+            paramSet = {};
+            while (index < length) {
+                token = lookahead();
+                param = parseVariableIdentifier();
+                if (strict) {
+                    if (isRestrictedWord(token.value)) {
+                        stricted = token;
+                        message = Messages.StrictParamName;
+                    }
+                    if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) {
+                        stricted = token;
+                        message = Messages.StrictParamDupe;
+                    }
+                } else if (!firstRestricted) {
+                    if (isRestrictedWord(token.value)) {
+                        firstRestricted = token;
+                        message = Messages.StrictParamName;
+                    } else if (isStrictModeReservedWord(token.value)) {
+                        firstRestricted = token;
+                        message = Messages.StrictReservedWord;
+                    } else if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) {
+                        firstRestricted = token;
+                        message = Messages.StrictParamDupe;
+                    }
+                }
+                params.push(param);
+                paramSet[param.name] = true;
+                if (match(')')) {
+                    break;
+                }
+                expect(',');
+            }
+        }
+
+        expect(')');
+
+        previousStrict = strict;
+        body = parseFunctionSourceElements();
+        if (strict && firstRestricted) {
+            throwError(firstRestricted, message);
+        }
+        if (strict && stricted) {
+            throwErrorTolerant(stricted, message);
+        }
+        strict = previousStrict;
+
+        return {
+            type: Syntax.FunctionDeclaration,
+            id: id,
+            params: params,
+            defaults: [],
+            body: body,
+            rest: null,
+            generator: false,
+            expression: false
+        };
+    }
+
+    function parseFunctionExpression() {
+        var token, id = null, stricted, firstRestricted, message, param, params = [], body, previousStrict, paramSet;
+
+        expectKeyword('function');
+
+        if (!match('(')) {
+            token = lookahead();
+            id = parseVariableIdentifier();
+            if (strict) {
+                if (isRestrictedWord(token.value)) {
+                    throwErrorTolerant(token, Messages.StrictFunctionName);
+                }
+            } else {
+                if (isRestrictedWord(token.value)) {
+                    firstRestricted = token;
+                    message = Messages.StrictFunctionName;
+                } else if (isStrictModeReservedWord(token.value)) {
+                    firstRestricted = token;
+                    message = Messages.StrictReservedWord;
+                }
+            }
+        }
+
+        expect('(');
+
+        if (!match(')')) {
+            paramSet = {};
+            while (index < length) {
+                token = lookahead();
+                param = parseVariableIdentifier();
+                if (strict) {
+                    if (isRestrictedWord(token.value)) {
+                        stricted = token;
+                        message = Messages.StrictParamName;
+                    }
+                    if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) {
+                        stricted = token;
+                        message = Messages.StrictParamDupe;
+                    }
+                } else if (!firstRestricted) {
+                    if (isRestrictedWord(token.value)) {
+                        firstRestricted = token;
+                        message = Messages.StrictParamName;
+                    } else if (isStrictModeReservedWord(token.value)) {
+                        firstRestricted = token;
+                        message = Messages.StrictReservedWord;
+                    } else if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) {
+                        firstRestricted = token;
+                        message = Messages.StrictParamDupe;
+                    }
+                }
+                params.push(param);
+                paramSet[param.name] = true;
+                if (match(')')) {
+                    break;
+                }
+                expect(',');
+            }
+        }
+
+        expect(')');
+
+        previousStrict = strict;
+        body = parseFunctionSourceElements();
+        if (strict && firstRestricted) {
+            throwError(firstRestricted, message);
+        }
+        if (strict && stricted) {
+            throwErrorTolerant(stricted, message);
+        }
+        strict = previousStrict;
+
+        return {
+            type: Syntax.FunctionExpression,
+            id: id,
+            params: params,
+            defaults: [],
+            body: body,
+            rest: null,
+            generator: false,
+            expression: false
+        };
+    }
+
+    // 14 Program
+
+    function parseSourceElement() {
+        var token = lookahead();
+
+        if (token.type === Token.Keyword) {
+            switch (token.value) {
+            case 'const':
+            case 'let':
+                return parseConstLetDeclaration(token.value);
+            case 'function':
+                return parseFunctionDeclaration();
+            default:
+                return parseStatement();
+            }
+        }
+
+        if (token.type !== Token.EOF) {
+            return parseStatement();
+        }
+    }
+
+    function parseSourceElements() {
+        var sourceElement, sourceElements = [], token, directive, firstRestricted;
+
+        while (index < length) {
+            token = lookahead();
+            if (token.type !== Token.StringLiteral) {
+                break;
+            }
+
+            sourceElement = parseSourceElement();
+            sourceElements.push(sourceElement);
+            if (sourceElement.expression.type !== Syntax.Literal) {
+                // this is not directive
+                break;
+            }
+            directive = sliceSource(token.range[0] + 1, token.range[1] - 1);
+            if (directive === 'use strict') {
+                strict = true;
+                if (firstRestricted) {
+                    throwErrorTolerant(firstRestricted, Messages.StrictOctalLiteral);
+                }
+            } else {
+                if (!firstRestricted && token.octal) {
+                    firstRestricted = token;
+                }
+            }
+        }
+
+        while (index < length) {
+            sourceElement = parseSourceElement();
+            if (typeof sourceElement === 'undefined') {
+                break;
+            }
+            sourceElements.push(sourceElement);
+        }
+        return sourceElements;
+    }
+
+    function parseProgram() {
+        var program;
+        strict = false;
+        program = {
+            type: Syntax.Program,
+            body: parseSourceElements()
+        };
+        return program;
+    }
+
+    // The following functions are needed only when the option to preserve
+    // the comments is active.
+
+    function addComment(type, value, start, end, loc) {
+        assert(typeof start === 'number', 'Comment must have valid position');
+
+        // Because the way the actual token is scanned, often the comments
+        // (if any) are skipped twice during the lexical analysis.
+        // Thus, we need to skip adding a comment if the comment array already
+        // handled it.
+        if (extra.comments.length > 0) {
+            if (extra.comments[extra.comments.length - 1].range[1] > start) {
+                return;
+            }
+        }
+
+        extra.comments.push({
+            type: type,
+            value: value,
+            range: [start, end],
+            loc: loc
+        });
+    }
+
+    function scanComment() {
+        var comment, ch, loc, start, blockComment, lineComment;
+
+        comment = '';
+        blockComment = false;
+        lineComment = false;
+
+        while (index < length) {
+            ch = source[index];
+
+            if (lineComment) {
+                ch = source[index++];
+                if (isLineTerminator(ch)) {
+                    loc.end = {
+                        line: lineNumber,
+                        column: index - lineStart - 1
+                    };
+                    lineComment = false;
+                    addComment('Line', comment, start, index - 1, loc);
+                    if (ch === '\r' && source[index] === '\n') {
+                        ++index;
+                    }
+                    ++lineNumber;
+                    lineStart = index;
+                    comment = '';
+                } else if (index >= length) {
+                    lineComment = false;
+                    comment += ch;
+                    loc.end = {
+                        line: lineNumber,
+                        column: length - lineStart
+                    };
+                    addComment('Line', comment, start, length, loc);
+                } else {
+                    comment += ch;
+                }
+            } else if (blockComment) {
+                if (isLineTerminator(ch)) {
+                    if (ch === '\r' && source[index + 1] === '\n') {
+                        ++index;
+                        comment += '\r\n';
+                    } else {
+                        comment += ch;
+                    }
+                    ++lineNumber;
+                    ++index;
+                    lineStart = index;
+                    if (index >= length) {
+                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+                    }
+                } else {
+                    ch = source[index++];
+                    if (index >= length) {
+                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+                    }
+                    comment += ch;
+                    if (ch === '*') {
+                        ch = source[index];
+                        if (ch === '/') {
+                            comment = comment.substr(0, comment.length - 1);
+                            blockComment = false;
+                            ++index;
+                            loc.end = {
+                                line: lineNumber,
+                                column: index - lineStart
+                            };
+                            addComment('Block', comment, start, index, loc);
+                            comment = '';
+                        }
+                    }
+                }
+            } else if (ch === '/') {
+                ch = source[index + 1];
+                if (ch === '/') {
+                    loc = {
+                        start: {
+                            line: lineNumber,
+                            column: index - lineStart
+                        }
+                    };
+                    start = index;
+                    index += 2;
+                    lineComment = true;
+                    if (index >= length) {
+                        loc.end = {
+                            line: lineNumber,
+                            column: index - lineStart
+                        };
+                        lineComment = false;
+                        addComment('Line', comment, start, index, loc);
+                    }
+                } else if (ch === '*') {
+                    start = index;
+                    index += 2;
+                    blockComment = true;
+                    loc = {
+                        start: {
+                            line: lineNumber,
+                            column: index - lineStart - 2
+                        }
+                    };
+                    if (index >= length) {
+                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+                    }
+                } else {
+                    break;
+                }
+            } else if (isWhiteSpace(ch)) {
+                ++index;
+            } else if (isLineTerminator(ch)) {
+                ++index;
+                if (ch ===  '\r' && source[index] === '\n') {
+                    ++index;
+                }
+                ++lineNumber;
+                lineStart = index;
+            } else {
+                break;
+            }
+        }
+    }
+
+    function filterCommentLocation() {
+        var i, entry, comment, comments = [];
+
+        for (i = 0; i < extra.comments.length; ++i) {
+            entry = extra.comments[i];
+            comment = {
+                type: entry.type,
+                value: entry.value
+            };
+            if (extra.range) {
+                comment.range = entry.range;
+            }
+            if (extra.loc) {
+                comment.loc = entry.loc;
+            }
+            comments.push(comment);
+        }
+
+        extra.comments = comments;
+    }
+
+    function collectToken() {
+        var start, loc, token, range, value;
+
+        skipComment();
+        start = index;
+        loc = {
+            start: {
+                line: lineNumber,
+                column: index - lineStart
+            }
+        };
+
+        token = extra.advance();
+        loc.end = {
+            line: lineNumber,
+            column: index - lineStart
+        };
+
+        if (token.type !== Token.EOF) {
+            range = [token.range[0], token.range[1]];
+            value = sliceSource(token.range[0], token.range[1]);
+            extra.tokens.push({
+                type: TokenName[token.type],
+                value: value,
+                range: range,
+                loc: loc
+            });
+        }
+
+        return token;
+    }
+
+    function collectRegex() {
+        var pos, loc, regex, token;
+
+        skipComment();
+
+        pos = index;
+        loc = {
+            start: {
+                line: lineNumber,
+                column: index - lineStart
+            }
+        };
+
+        regex = extra.scanRegExp();
+        loc.end = {
+            line: lineNumber,
+            column: index - lineStart
+        };
+
+        // Pop the previous token, which is likely '/' or '/='
+        if (extra.tokens.length > 0) {
+            token = extra.tokens[extra.tokens.length - 1];
+            if (token.range[0] === pos && token.type === 'Punctuator') {
+                if (token.value === '/' || token.value === '/=') {
+                    extra.tokens.pop();
+                }
+            }
+        }
+
+        extra.tokens.push({
+            type: 'RegularExpression',
+            value: regex.literal,
+            range: [pos, index],
+            loc: loc
+        });
+
+        return regex;
+    }
+
+    function filterTokenLocation() {
+        var i, entry, token, tokens = [];
+
+        for (i = 0; i < extra.tokens.length; ++i) {
+            entry = extra.tokens[i];
+            token = {
+                type: entry.type,
+                value: entry.value
+            };
+            if (extra.range) {
+                token.range = entry.range;
+            }
+            if (extra.loc) {
+                token.loc = entry.loc;
+            }
+            tokens.push(token);
+        }
+
+        extra.tokens = tokens;
+    }
+
+    function createLiteral(token) {
+        return {
+            type: Syntax.Literal,
+            value: token.value
+        };
+    }
+
+    function createRawLiteral(token) {
+        return {
+            type: Syntax.Literal,
+            value: token.value,
+            raw: sliceSource(token.range[0], token.range[1])
+        };
+    }
+
+    function createLocationMarker() {
+        var marker = {};
+
+        marker.range = [index, index];
+        marker.loc = {
+            start: {
+                line: lineNumber,
+                column: index - lineStart
+            },
+            end: {
+                line: lineNumber,
+                column: index - lineStart
+            }
+        };
+
+        marker.end = function () {
+            this.range[1] = index;
+            this.loc.end.line = lineNumber;
+            this.loc.end.column = index - lineStart;
+        };
+
+        marker.applyGroup = function (node) {
+            if (extra.range) {
+                node.groupRange = [this.range[0], this.range[1]];
+            }
+            if (extra.loc) {
+                node.groupLoc = {
+                    start: {
+                        line: this.loc.start.line,
+                        column: this.loc.start.column
+                    },
+                    end: {
+                        line: this.loc.end.line,
+                        column: this.loc.end.column
+                    }
+                };
+            }
+        };
+
+        marker.apply = function (node) {
+            if (extra.range) {
+                node.range = [this.range[0], this.range[1]];
+            }
+            if (extra.loc) {
+                node.loc = {
+                    start: {
+                        line: this.loc.start.line,
+                        column: this.loc.start.column
+                    },
+                    end: {
+                        line: this.loc.end.line,
+                        column: this.loc.end.column
+                    }
+                };
+            }
+        };
+
+        return marker;
+    }
+
+    function trackGroupExpression() {
+        var marker, expr;
+
+        skipComment();
+        marker = createLocationMarker();
+        expect('(');
+
+        expr = parseExpression();
+
+        expect(')');
+
+        marker.end();
+        marker.applyGroup(expr);
+
+        return expr;
+    }
+
+    function trackLeftHandSideExpression() {
+        var marker, expr;
+
+        skipComment();
+        marker = createLocationMarker();
+
+        expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
+
+        while (match('.') || match('[')) {
+            if (match('[')) {
+                expr = {
+                    type: Syntax.MemberExpression,
+                    computed: true,
+                    object: expr,
+                    property: parseComputedMember()
+                };
+                marker.end();
+                marker.apply(expr);
+            } else {
+                expr = {
+                    type: Syntax.MemberExpression,
+                    computed: false,
+                    object: expr,
+                    property: parseNonComputedMember()
+                };
+                marker.end();
+                marker.apply(expr);
+            }
+        }
+
+        return expr;
+    }
+
+    function trackLeftHandSideExpressionAllowCall() {
+        var marker, expr;
+
+        skipComment();
+        marker = createLocationMarker();
+
+        expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
+
+        while (match('.') || match('[') || match('(')) {
+            if (match('(')) {
+                expr = {
+                    type: Syntax.CallExpression,
+                    callee: expr,
+                    'arguments': parseArguments()
+                };
+                marker.end();
+                marker.apply(expr);
+            } else if (match('[')) {
+                expr = {
+                    type: Syntax.MemberExpression,
+                    computed: true,
+                    object: expr,
+                    property: parseComputedMember()
+                };
+                marker.end();
+                marker.apply(expr);
+            } else {
+                expr = {
+                    type: Syntax.MemberExpression,
+                    computed: false,
+                    object: expr,
+                    property: parseNonComputedMember()
+                };
+                marker.end();
+                marker.apply(expr);
+            }
+        }
+
+        return expr;
+    }
+
+    function filterGroup(node) {
+        var n, i, entry;
+
+        n = (Object.prototype.toString.apply(node) === '[object Array]') ? [] : {};
+        for (i in node) {
+            if (node.hasOwnProperty(i) && i !== 'groupRange' && i !== 'groupLoc') {
+                entry = node[i];
+                if (entry === null || typeof entry !== 'object' || entry instanceof RegExp) {
+                    n[i] = entry;
+                } else {
+                    n[i] = filterGroup(entry);
+                }
+            }
+        }
+        return n;
+    }
+
+    function wrapTrackingFunction(range, loc) {
+
+        return function (parseFunction) {
+
+            function isBinary(node) {
+                return node.type === Syntax.LogicalExpression ||
+                    node.type === Syntax.BinaryExpression;
+            }
+
+            function visit(node) {
+                var start, end;
+
+                if (isBinary(node.left)) {
+                    visit(node.left);
+                }
+                if (isBinary(node.right)) {
+                    visit(node.right);
+                }
+
+                if (range) {
+                    if (node.left.groupRange || node.right.groupRange) {
+                        start = node.left.groupRange ? node.left.groupRange[0] : node.left.range[0];
+                        end = node.right.groupRange ? node.right.groupRange[1] : node.right.range[1];
+                        node.range = [start, end];
+                    } else if (typeof node.range === 'undefined') {
+                        start = node.left.range[0];
+                        end = node.right.range[1];
+                        node.range = [start, end];
+                    }
+                }
+                if (loc) {
+                    if (node.left.groupLoc || node.right.groupLoc) {
+                        start = node.left.groupLoc ? node.left.groupLoc.start : node.left.loc.start;
+                        end = node.right.groupLoc ? node.right.groupLoc.end : node.right.loc.end;
+                        node.loc = {
+                            start: start,
+                            end: end
+                        };
+                    } else if (typeof node.loc === 'undefined') {
+                        node.loc = {
+                            start: node.left.loc.start,
+                            end: node.right.loc.end
+                        };
+                    }
+                }
+            }
+
+            return function () {
+                var marker, node;
+
+                skipComment();
+
+                marker = createLocationMarker();
+                node = parseFunction.apply(null, arguments);
+                marker.end();
+
+                if (range && typeof node.range === 'undefined') {
+                    marker.apply(node);
+                }
+
+                if (loc && typeof node.loc === 'undefined') {
+                    marker.apply(node);
+                }
+
+                if (isBinary(node)) {
+                    visit(node);
+                }
+
+                return node;
+            };
+        };
+    }
+
+    function patch() {
+
+        var wrapTracking;
+
+        if (extra.comments) {
+            extra.skipComment = skipComment;
+            skipComment = scanComment;
+        }
+
+        if (extra.raw) {
+            extra.createLiteral = createLiteral;
+            createLiteral = createRawLiteral;
+        }
+
+        if (extra.range || extra.loc) {
+
+            extra.parseGroupExpression = parseGroupExpression;
+            extra.parseLeftHandSideExpression = parseLeftHandSideExpression;
+            extra.parseLeftHandSideExpressionAllowCall = parseLeftHandSideExpressionAllowCall;
+            parseGroupExpression = trackGroupExpression;
+            parseLeftHandSideExpression = trackLeftHandSideExpression;
+            parseLeftHandSideExpressionAllowCall = trackLeftHandSideExpressionAllowCall;
+
+            wrapTracking = wrapTrackingFunction(extra.range, extra.loc);
+
+            extra.parseAdditiveExpression = parseAdditiveExpression;
+            extra.parseAssignmentExpression = parseAssignmentExpression;
+            extra.parseBitwiseANDExpression = parseBitwiseANDExpression;
+            extra.parseBitwiseORExpression = parseBitwiseORExpression;
+            extra.parseBitwiseXORExpression = parseBitwiseXORExpression;
+            extra.parseBlock = parseBlock;
+            extra.parseFunctionSourceElements = parseFunctionSourceElements;
+            extra.parseCatchClause = parseCatchClause;
+            extra.parseComputedMember = parseComputedMember;
+            extra.parseConditionalExpression = parseConditionalExpression;
+            extra.parseConstLetDeclaration = parseConstLetDeclaration;
+            extra.parseEqualityExpression = parseEqualityExpression;
+            extra.parseExpression = parseExpression;
+            extra.parseForVariableDeclaration = parseForVariableDeclaration;
+            extra.parseFunctionDeclaration = parseFunctionDeclaration;
+            extra.parseFunctionExpression = parseFunctionExpression;
+            extra.parseLogicalANDExpression = parseLogicalANDExpression;
+            extra.parseLogicalORExpression = parseLogicalORExpression;
+            extra.parseMultiplicativeExpression = parseMultiplicativeExpression;
+            extra.parseNewExpression = parseNewExpression;
+            extra.parseNonComputedProperty = parseNonComputedProperty;
+            extra.parseObjectProperty = parseObjectProperty;
+            extra.parseObjectPropertyKey = parseObjectPropertyKey;
+            extra.parsePostfixExpression = parsePostfixExpression;
+            extra.parsePrimaryExpression = parsePrimaryExpression;
+            extra.parseProgram = parseProgram;
+            extra.parsePropertyFunction = parsePropertyFunction;
+            extra.parseRelationalExpression = parseRelationalExpression;
+            extra.parseStatement = parseStatement;
+            extra.parseShiftExpression = parseShiftExpression;
+            extra.parseSwitchCase = parseSwitchCase;
+            extra.parseUnaryExpression = parseUnaryExpression;
+            extra.parseVariableDeclaration = parseVariableDeclaration;
+            extra.parseVariableIdentifier = parseVariableIdentifier;
+
+            parseAdditiveExpression = wrapTracking(extra.parseAdditiveExpression);
+            parseAssignmentExpression = wrapTracking(extra.parseAssignmentExpression);
+            parseBitwiseANDExpression = wrapTracking(extra.parseBitwiseANDExpression);
+            parseBitwiseORExpression = wrapTracking(extra.parseBitwiseORExpression);
+            parseBitwiseXORExpression = wrapTracking(extra.parseBitwiseXORExpression);
+            parseBlock = wrapTracking(extra.parseBlock);
+            parseFunctionSourceElements = wrapTracking(extra.parseFunctionSourceElements);
+            parseCatchClause = wrapTracking(extra.parseCatchClause);
+            parseComputedMember = wrapTracking(extra.parseComputedMember);
+            parseConditionalExpression = wrapTracking(extra.parseConditionalExpression);
+            parseConstLetDeclaration = wrapTracking(extra.parseConstLetDeclaration);
+            parseEqualityExpression = wrapTracking(extra.parseEqualityExpression);
+            parseExpression = wrapTracking(extra.parseExpression);
+            parseForVariableDeclaration = wrapTracking(extra.parseForVariableDeclaration);
+            parseFunctionDeclaration = wrapTracking(extra.parseFunctionDeclaration);
+            parseFunctionExpression = wrapTracking(extra.parseFunctionExpression);
+            parseLeftHandSideExpression = wrapTracking(parseLeftHandSideExpression);
+            parseLogicalANDExpression = wrapTracking(extra.parseLogicalANDExpression);
+            parseLogicalORExpression = wrapTracking(extra.parseLogicalORExpression);
+            parseMultiplicativeExpression = wrapTracking(extra.parseMultiplicativeExpression);
+            parseNewExpression = wrapTracking(extra.parseNewExpression);
+            parseNonComputedProperty = wrapTracking(extra.parseNonComputedProperty);
+            parseObjectProperty = wrapTracking(extra.parseObjectProperty);
+            parseObjectPropertyKey = wrapTracking(extra.parseObjectPropertyKey);
+            parsePostfixExpression = wrapTracking(extra.parsePostfixExpression);
+            parsePrimaryExpression = wrapTracking(extra.parsePrimaryExpression);
+            parseProgram = wrapTracking(extra.parseProgram);
+            parsePropertyFunction = wrapTracking(extra.parsePropertyFunction);
+            parseRelationalExpression = wrapTracking(extra.parseRelationalExpression);
+            parseStatement = wrapTracking(extra.parseStatement);
+            parseShiftExpression = wrapTracking(extra.parseShiftExpression);
+            parseSwitchCase = wrapTracking(extra.parseSwitchCase);
+            parseUnaryExpression = wrapTracking(extra.parseUnaryExpression);
+            parseVariableDeclaration = wrapTracking(extra.parseVariableDeclaration);
+            parseVariableIdentifier = wrapTracking(extra.parseVariableIdentifier);
+        }
+
+        if (typeof extra.tokens !== 'undefined') {
+            extra.advance = advance;
+            extra.scanRegExp = scanRegExp;
+
+            advance = collectToken;
+            scanRegExp = collectRegex;
+        }
+    }
+
+    function unpatch() {
+        if (typeof extra.skipComment === 'function') {
+            skipComment = extra.skipComment;
+        }
+
+        if (extra.raw) {
+            createLiteral = extra.createLiteral;
+        }
+
+        if (extra.range || extra.loc) {
+            parseAdditiveExpression = extra.parseAdditiveExpression;
+            parseAssignmentExpression = extra.parseAssignmentExpression;
+            parseBitwiseANDExpression = extra.parseBitwiseANDExpression;
+            parseBitwiseORExpression = extra.parseBitwiseORExpression;
+            parseBitwiseXORExpression = extra.parseBitwiseXORExpression;
+            parseBlock = extra.parseBlock;
+            parseFunctionSourceElements = extra.parseFunctionSourceElements;
+            parseCatchClause = extra.parseCatchClause;
+            parseComputedMember = extra.parseComputedMember;
+            parseConditionalExpression = extra.parseConditionalExpression;
+            parseConstLetDeclaration = extra.parseConstLetDeclaration;
+            parseEqualityExpression = extra.parseEqualityExpression;
+            parseExpression = extra.parseExpression;
+            parseForVariableDeclaration = extra.parseForVariableDeclaration;
+            parseFunctionDeclaration = extra.parseFunctionDeclaration;
+            parseFunctionExpression = extra.parseFunctionExpression;
+            parseGroupExpression = extra.parseGroupExpression;
+            parseLeftHandSideExpression = extra.parseLeftHandSideExpression;
+            parseLeftHandSideExpressionAllowCall = extra.parseLeftHandSideExpressionAllowCall;
+            parseLogicalANDExpression = extra.parseLogicalANDExpression;
+            parseLogicalORExpression = extra.parseLogicalORExpression;
+            parseMultiplicativeExpression = extra.parseMultiplicativeExpression;
+            parseNewExpression = extra.parseNewExpression;
+            parseNonComputedProperty = extra.parseNonComputedProperty;
+            parseObjectProperty = extra.parseObjectProperty;
+            parseObjectPropertyKey = extra.parseObjectPropertyKey;
+            parsePrimaryExpression = extra.parsePrimaryExpression;
+            parsePostfixExpression = extra.parsePostfixExpression;
+            parseProgram = extra.parseProgram;
+            parsePropertyFunction = extra.parsePropertyFunction;
+            parseRelationalExpression = extra.parseRelationalExpression;
+            parseStatement = extra.parseStatement;
+            parseShiftExpression = extra.parseShiftExpression;
+            parseSwitchCase = extra.parseSwitchCase;
+            parseUnaryExpression = extra.parseUnaryExpression;
+            parseVariableDeclaration = extra.parseVariableDeclaration;
+            parseVariableIdentifier = extra.parseVariableIdentifier;
+        }
+
+        if (typeof extra.scanRegExp === 'function') {
+            advance = extra.advance;
+            scanRegExp = extra.scanRegExp;
+        }
+    }
+
+    function stringToArray(str) {
+        var length = str.length,
+            result = [],
+            i;
+        for (i = 0; i < length; ++i) {
+            result[i] = str.charAt(i);
+        }
+        return result;
+    }
+
+    function parse(code, options) {
+        var program, toString;
+
+        toString = String;
+        if (typeof code !== 'string' && !(code instanceof String)) {
+            code = toString(code);
+        }
+
+        source = code;
+        index = 0;
+        lineNumber = (source.length > 0) ? 1 : 0;
+        lineStart = 0;
+        length = source.length;
+        buffer = null;
+        state = {
+            allowIn: true,
+            labelSet: {},
+            inFunctionBody: false,
+            inIteration: false,
+            inSwitch: false
+        };
+
+        extra = {};
+        if (typeof options !== 'undefined') {
+            extra.range = (typeof options.range === 'boolean') && options.range;
+            extra.loc = (typeof options.loc === 'boolean') && options.loc;
+            extra.raw = (typeof options.raw === 'boolean') && options.raw;
+            if (typeof options.tokens === 'boolean' && options.tokens) {
+                extra.tokens = [];
+            }
+            if (typeof options.comment === 'boolean' && options.comment) {
+                extra.comments = [];
+            }
+            if (typeof options.tolerant === 'boolean' && options.tolerant) {
+                extra.errors = [];
+            }
+        }
+
+        if (length > 0) {
+            if (typeof source[0] === 'undefined') {
+                // Try first to convert to a string. This is good as fast path
+                // for old IE which understands string indexing for string
+                // literals only and not for string object.
+                if (code instanceof String) {
+                    source = code.valueOf();
+                }
+
+                // Force accessing the characters via an array.
+                if (typeof source[0] === 'undefined') {
+                    source = stringToArray(code);
+                }
+            }
+        }
+
+        patch();
+        try {
+            program = parseProgram();
+            if (typeof extra.comments !== 'undefined') {
+                filterCommentLocation();
+                program.comments = extra.comments;
+            }
+            if (typeof extra.tokens !== 'undefined') {
+                filterTokenLocation();
+                program.tokens = extra.tokens;
+            }
+            if (typeof extra.errors !== 'undefined') {
+                program.errors = extra.errors;
+            }
+            if (extra.range || extra.loc) {
+                program.body = filterGroup(program.body);
+            }
+        } catch (e) {
+            throw e;
+        } finally {
+            unpatch();
+            extra = {};
+        }
+
+        return program;
+    }
+
+    // Sync with package.json.
+    exports.version = '1.0.4';
+
+    exports.parse = parse;
+
+    // Deep copy.
+    exports.Syntax = (function () {
+        var name, types = {};
+
+        if (typeof Object.create === 'function') {
+            types = Object.create(null);
+        }
+
+        for (name in Syntax) {
+            if (Syntax.hasOwnProperty(name)) {
+                types[name] = Syntax[name];
+            }
+        }
+
+        if (typeof Object.freeze === 'function') {
+            Object.freeze(types);
+        }
+
+        return types;
+    }());
+
+}));
+/* vim: set sw=4 ts=4 et tw=80 : */
+
+})(null);
+/*!
+ * falafel (c) James Halliday / MIT License
+ * https://github.com/substack/node-falafel
+ */
+
+(function(require,module){
+var parse = require('esprima').parse;
+var objectKeys = Object.keys || function (obj) {
+    var keys = [];
+    for (var key in obj) keys.push(key);
+    return keys;
+};
+var forEach = function (xs, fn) {
+    if (xs.forEach) return xs.forEach(fn);
+    for (var i = 0; i < xs.length; i++) {
+        fn.call(xs, xs[i], i, xs);
+    }
+};
+
+var isArray = Array.isArray || function (xs) {
+    return Object.prototype.toString.call(xs) === '[object Array]';
+};
+
+module.exports = function (src, opts, fn) {
+    if (typeof opts === 'function') {
+        fn = opts;
+        opts = {};
+    }
+    if (typeof src === 'object') {
+        opts = src;
+        src = opts.source;
+        delete opts.source;
+    }
+    src = src === undefined ? opts.source : src;
+    opts.range = true;
+    if (typeof src !== 'string') src = String(src);
+
+    var ast = parse(src, opts);
+
+    var result = {
+        chunks : src.split(''),
+        toString : function () { return result.chunks.join('') },
+        inspect : function () { return result.toString() }
+    };
+    var index = 0;
+
+    (function walk (node, parent) {
+        insertHelpers(node, parent, result.chunks);
+
+        forEach(objectKeys(node), function (key) {
+            if (key === 'parent') return;
+
+            var child = node[key];
+            if (isArray(child)) {
+                forEach(child, function (c) {
+                    if (c && typeof c.type === 'string') {
+                        walk(c, node);
+                    }
+                });
+            }
+            else if (child && typeof child.type === 'string') {
+                insertHelpers(child, node, result.chunks);
+                walk(child, node);
+            }
+        });
+        fn(node);
+    })(ast, undefined);
+
+    return result;
+};
+
+function insertHelpers (node, parent, chunks) {
+    if (!node.range) return;
+
+    node.parent = parent;
+
+    node.source = function () {
+        return chunks.slice(
+            node.range[0], node.range[1]
+        ).join('');
+    };
+
+    if (node.update && typeof node.update === 'object') {
+        var prev = node.update;
+        forEach(objectKeys(prev), function (key) {
+            update[key] = prev[key];
+        });
+        node.update = update;
+    }
+    else {
+        node.update = update;
+    }
+
+    function update (s) {
+        chunks[node.range[0]] = s;
+        for (var i = node.range[0] + 1; i < node.range[1]; i++) {
+            chunks[i] = '';
+        }
+    };
+}
+
+window.falafel = module.exports;})(function(){return {parse: esprima.parse};},{exports: {}});
+var inBrowser = typeof window !== 'undefined' && this === window;
+var parseAndModify = (inBrowser ? window.falafel : require("falafel"));
+
+(inBrowser ? window : exports).blanket = (function(){
+    var linesToAddTracking = [
+        "ExpressionStatement",
+        "BreakStatement"   ,
+        "ContinueStatement" ,
+        "VariableDeclaration",
+        "ReturnStatement"   ,
+        "ThrowStatement"   ,
+        "TryStatement"     ,
+        "FunctionDeclaration"    ,
+        "IfStatement"       ,
+        "WhileStatement"    ,
+        "DoWhileStatement"   ,
+        "ForStatement"   ,
+        "ForInStatement"  ,
+        "SwitchStatement"  ,
+        "WithStatement"
+    ],
+    linesToAddBrackets = [
+        "IfStatement"       ,
+        "WhileStatement"    ,
+        "DoWhileStatement"     ,
+        "ForStatement"   ,
+        "ForInStatement"  ,
+        "WithStatement"
+    ],
+    __blanket,
+    copynumber = Math.floor(Math.random()*1000),
+    coverageInfo = {},options = {
+        reporter: null,
+        adapter:null,
+        filter: null,
+        customVariable: null,
+        loader: null,
+        ignoreScriptError: false,
+        existingRequireJS:false,
+        autoStart: false,
+        timeout: 180,
+        ignoreCors: false,
+        branchTracking: false,
+        sourceURL: false,
+        debug:false,
+        engineOnly:false,
+        testReadyCallback:null,
+        commonJS:false,
+        instrumentCache:false,
+        modulePattern: null
+    };
+
+    if (inBrowser && typeof window.blanket !== 'undefined'){
+        __blanket = window.blanket.noConflict();
+    }
+
+    _blanket = {
+        noConflict: function(){
+            if (__blanket){
+                return __blanket;
+            }
+            return _blanket;
+        },
+        _getCopyNumber: function(){
+            //internal method
+            //for differentiating between instances
+            return copynumber;
+        },
+        extend: function(obj) {
+            //borrowed from underscore
+            _blanket._extend(_blanket,obj);
+        },
+        _extend: function(dest,source){
+          if (source) {
+            for (var prop in source) {
+              if ( dest[prop] instanceof Object && typeof dest[prop] !== "function"){
+                _blanket._extend(dest[prop],source[prop]);
+              }else{
+                  dest[prop] = source[prop];
+              }
+            }
+          }
+        },
+        getCovVar: function(){
+            var opt = _blanket.options("customVariable");
+            if (opt){
+                if (_blanket.options("debug")) {console.log("BLANKET-Using custom tracking variable:",opt);}
+                return inBrowser ? "window."+opt : opt;
+            }
+            return inBrowser ?   "window._$blanket" : "_$jscoverage";
+        },
+        options: function(key,value){
+            if (typeof key !== "string"){
+                _blanket._extend(options,key);
+            }else if (typeof value === 'undefined'){
+                return options[key];
+            }else{
+                options[key]=value;
+            }
+        },
+        instrument: function(config, next){
+            //check instrumented hash table,
+            //return instrumented code if available.
+            var inFile = config.inputFile,
+                inFileName = config.inputFileName;
+            //check instrument cache
+           if (_blanket.options("instrumentCache") && sessionStorage && sessionStorage.getItem("blanket_instrument_store-"+inFileName)){
+                if (_blanket.options("debug")) {console.log("BLANKET-Reading instrumentation from cache: ",inFileName);}
+                next(sessionStorage.getItem("blanket_instrument_store-"+inFileName));
+            }else{
+                var sourceArray = _blanket._prepareSource(inFile);
+                _blanket._trackingArraySetup=[];
+                //remove shebang
+                inFile = inFile.replace(/^\#\!.*/, "");
+                var instrumented =  parseAndModify(inFile,{loc:true,comment:true}, _blanket._addTracking(inFileName));
+                instrumented = _blanket._trackingSetup(inFileName,sourceArray)+instrumented;
+                if (_blanket.options("sourceURL")){
+                    instrumented += "\n//@ sourceURL="+inFileName.replace("http://","");
+                }
+                if (_blanket.options("debug")) {console.log("BLANKET-Instrumented file: ",inFileName);}
+                if (_blanket.options("instrumentCache") && sessionStorage){
+                    if (_blanket.options("debug")) {console.log("BLANKET-Saving instrumentation to cache: ",inFileName);}
+                    sessionStorage.setItem("blanket_instrument_store-"+inFileName,instrumented);
+                }
+                next(instrumented);
+            }
+        },
+        _trackingArraySetup: [],
+        _branchingArraySetup: [],
+        _prepareSource: function(source){
+            return source.replace(/\\/g,"\\\\").replace(/'/g,"\\'").replace(/(\r\n|\n|\r)/gm,"\n").split('\n');
+        },
+        _trackingSetup: function(filename,sourceArray){
+            var branches = _blanket.options("branchTracking");
+            var sourceString = sourceArray.join("',\n'");
+            var intro = "";
+            var covVar = _blanket.getCovVar();
+
+            intro += "if (typeof "+covVar+" === 'undefined') "+covVar+" = {};\n";
+            if (branches){
+                intro += "var _$branchFcn=function(f,l,c,r){ ";
+                intro += "if (!!r) { ";
+                intro += covVar+"[f].branchData[l][c][0] = "+covVar+"[f].branchData[l][c][0] || [];";
+                intro += covVar+"[f].branchData[l][c][0].push(r); }";
+                intro += "else { ";
+                intro += covVar+"[f].branchData[l][c][1] = "+covVar+"[f].branchData[l][c][1] || [];";
+                intro += covVar+"[f].branchData[l][c][1].push(r); }";
+                intro += "return r;};\n";
+            }
+            intro += "if (typeof "+covVar+"['"+filename+"'] === 'undefined'){";
+
+            intro += covVar+"['"+filename+"']=[];\n";
+            if (branches){
+                intro += covVar+"['"+filename+"'].branchData=[];\n";
+            }
+            intro += covVar+"['"+filename+"'].source=['"+sourceString+"'];\n";
+            //initialize array values
+            _blanket._trackingArraySetup.sort(function(a,b){
+                return parseInt(a,10) > parseInt(b,10);
+            }).forEach(function(item){
+                intro += covVar+"['"+filename+"']["+item+"]=0;\n";
+            });
+            if (branches){
+                _blanket._branchingArraySetup.sort(function(a,b){
+                    return a.line > b.line;
+                }).sort(function(a,b){
+                    return a.column > b.column;
+                }).forEach(function(item){
+                    if (item.file === filename){
+                        intro += "if (typeof "+ covVar+"['"+filename+"'].branchData["+item.line+"] === 'undefined'){\n";
+                        intro += covVar+"['"+filename+"'].branchData["+item.line+"]=[];\n";
+                        intro += "}";
+                        intro += covVar+"['"+filename+"'].branchData["+item.line+"]["+item.column+"] = [];\n";
+                        intro += covVar+"['"+filename+"'].branchData["+item.line+"]["+item.column+"].consequent = "+JSON.stringify(item.consequent)+";\n";
+                        intro += covVar+"['"+filename+"'].branchData["+item.line+"]["+item.column+"].alternate = "+JSON.stringify(item.alternate)+";\n";
+                    }
+                });
+            }
+            intro += "}";
+
+            return intro;
+        },
+        _blockifyIf: function(node){
+            if (linesToAddBrackets.indexOf(node.type) > -1){
+                var bracketsExistObject = node.consequent || node.body;
+                var bracketsExistAlt = node.alternate;
+                if( bracketsExistAlt && bracketsExistAlt.type !== "BlockStatement") {
+                    bracketsExistAlt.update("{\n"+bracketsExistAlt.source()+"}\n");
+                }
+                if( bracketsExistObject && bracketsExistObject.type !== "BlockStatement") {
+                    bracketsExistObject.update("{\n"+bracketsExistObject.source()+"}\n");
+                }
+            }
+        },
+        _trackBranch: function(node,filename){
+            //recursive on consequent and alternative
+            var line = node.loc.start.line;
+            var col = node.loc.start.column;
+
+            _blanket._branchingArraySetup.push({
+                line: line,
+                column: col,
+                file:filename,
+                consequent: node.consequent.loc,
+                alternate: node.alternate.loc
+            });
+
+            var updated = "_$branchFcn"+
+                          "('"+filename+"',"+line+","+col+","+node.test.source()+
+                          ")?"+node.consequent.source()+":"+node.alternate.source();
+            node.update(updated);
+        },
+        _addTracking: function (filename) {
+            //falafel doesn't take a file name
+            //so we include the filename in a closure
+            //and return the function to falafel
+            var covVar = _blanket.getCovVar();
+
+            return function(node){
+                _blanket._blockifyIf(node);
+
+                if (linesToAddTracking.indexOf(node.type) > -1 && node.parent.type !== "LabeledStatement") {
+                    _blanket._checkDefs(node,filename);
+                    if (node.type === "VariableDeclaration" &&
+                        (node.parent.type === "ForStatement" || node.parent.type === "ForInStatement")){
+                        return;
+                    }
+                    if (node.loc && node.loc.start){
+                        node.update(covVar+"['"+filename+"']["+node.loc.start.line+"]++;\n"+node.source());
+                        _blanket._trackingArraySetup.push(node.loc.start.line);
+                    }else{
+                        //I don't think we can handle a node with no location
+                        throw new Error("The instrumenter encountered a node with no location: "+Object.keys(node));
+                    }
+                }else if (_blanket.options("branchTracking") && node.type === "ConditionalExpression"){
+                    _blanket._trackBranch(node,filename);
+                }
+            };
+        },
+        _checkDefs: function(node,filename){
+            // Make sure developers don't redefine window. if they do, inform them it is wrong.
+            if (inBrowser){
+                if (node.type === "VariableDeclaration" && node.declarations) {
+                    node.declarations.forEach(function(declaration) {
+                        if (declaration.id.name === "window") {
+                            throw new Error("Instrumentation error, you cannot redefine the 'window' variable in  " + filename + ":" + node.loc.start.line);
+                        }
+                    });
+                }
+                if (node.type === "FunctionDeclaration" && node.params) {
+                    node.params.forEach(function(param) {
+                        if (param.name === "window") {
+                            throw new Error("Instrumentation error, you cannot redefine the 'window' variable in  " + filename + ":" + node.loc.start.line);
+                        }
+                    });
+                }
+                //Make sure developers don't redefine the coverage variable
+                if (node.type === "ExpressionStatement" &&
+                    node.expression && node.expression.left &&
+                    node.expression.left.object && node.expression.left.property &&
+                    node.expression.left.object.name +
+                        "." + node.expression.left.property.name === _blanket.getCovVar()) {
+                    throw new Error("Instrumentation error, you cannot redefine the coverage variable in  " + filename + ":" + node.loc.start.line);
+                }
+            }else{
+                //Make sure developers don't redefine the coverage variable in node
+                if (node.type === "ExpressionStatement" &&
+                    node.expression && node.expression.left &&
+                    !node.expression.left.object && !node.expression.left.property &&
+                    node.expression.left.name === _blanket.getCovVar()) {
+                    throw new Error("Instrumentation error, you cannot redefine the coverage variable in  " + filename + ":" + node.loc.start.line);
+                }
+            }
+        },
+        setupCoverage: function(){
+            coverageInfo.instrumentation = "blanket";
+            coverageInfo.stats = {
+                "suites": 0,
+                "tests": 0,
+                "passes": 0,
+                "pending": 0,
+                "failures": 0,
+                "start": new Date()
+            };
+        },
+        _checkIfSetup: function(){
+            if (!coverageInfo.stats){
+                throw new Error("You must call blanket.setupCoverage() first.");
+            }
+        },
+        onTestStart: function(){
+            if (_blanket.options("debug")) {console.log("BLANKET-Test event started");}
+            this._checkIfSetup();
+            coverageInfo.stats.tests++;
+            coverageInfo.stats.pending++;
+        },
+        onTestDone: function(total,passed){
+            this._checkIfSetup();
+            if(passed === total){
+                coverageInfo.stats.passes++;
+            }else{
+                coverageInfo.stats.failures++;
+            }
+            coverageInfo.stats.pending--;
+        },
+        onModuleStart: function(){
+            this._checkIfSetup();
+            coverageInfo.stats.suites++;
+        },
+        onTestsDone: function(){
+            if (_blanket.options("debug")) {console.log("BLANKET-Test event done");}
+            this._checkIfSetup();
+            coverageInfo.stats.end = new Date();
+
+            if (inBrowser){
+                this.report(coverageInfo);
+            }else{
+                if (!_blanket.options("branchTracking")){
+                    delete (inBrowser ? window : global)[_blanket.getCovVar()].branchFcn;
+                }
+                this.options("reporter").call(this,coverageInfo);
+            }
+        }
+    };
+    return _blanket;
+})();
+
+(function(_blanket){
+    var oldOptions = _blanket.options;
+_blanket.extend({
+    outstandingRequireFiles:[],
+    options: function(key,value){
+        var newVal={};
+
+        if (typeof key !== "string"){
+            //key is key/value map
+            oldOptions(key);
+            newVal = key;
+        }else if (typeof value === 'undefined'){
+            //accessor
+            return oldOptions(key);
+        }else{
+            //setter
+            oldOptions(key,value);
+            newVal[key] = value;
+        }
+
+        if (newVal.adapter){
+            _blanket._loadFile(newVal.adapter);
+        }
+        if (newVal.loader){
+            _blanket._loadFile(newVal.loader);
+        }
+    },
+    requiringFile: function(filename,done){
+        if (typeof filename === "undefined"){
+            _blanket.outstandingRequireFiles=[];
+        }else if (typeof done === "undefined"){
+            _blanket.outstandingRequireFiles.push(filename);
+        }else{
+            _blanket.outstandingRequireFiles.splice(_blanket.outstandingRequireFiles.indexOf(filename),1);
+        }
+    },
+    requireFilesLoaded: function(){
+        return _blanket.outstandingRequireFiles.length === 0;
+    },
+    showManualLoader: function(){
+        if (document.getElementById("blanketLoaderDialog")){
+            return;
+        }
+        //copied from http://blog.avtex.com/2012/01/26/cross-browser-css-only-modal-box/
+        var loader = "
";
+            loader += " 
";
+            loader += "
";
+            loader += "
";
+            loader += "Error: Blanket.js encountered a cross origin request error while instrumenting the source files.  ";
+            loader += "

This is likely caused by the source files being referenced locally (using the file:// protocol). ";
+            loader += "

Some solutions include starting Chrome with special flags, running a server locally, or using a browser without these CORS restrictions (Safari).";
+            loader += "
";
+            if (typeof FileReader !== "undefined"){
+                loader += "
Or, try the experimental loader.  When prompted, simply click on the directory containing all the source files you want covered.";
+                loader += "Start Loader";
+                loader += "";
+            }
+            loader += "
Close";
+            loader += "
";
+            loader += "
";
+
+        var css = ".blanketDialogWrapper {";
+            css += "display:block;";
+            css += "position:fixed;";
+            css += "z-index:40001; }";
+
+            css += ".blanketDialogOverlay {";
+            css += "position:fixed;";
+            css += "width:100%;";
+            css += "height:100%;";
+            css += "background-color:black;";
+            css += "opacity:.5; ";
+            css += "-ms-filter:'progid:DXImageTransform.Microsoft.Alpha(Opacity=50)'; ";
+            css += "filter:alpha(opacity=50); ";
+            css += "z-index:40001; }";
+
+            css += ".blanketDialogVerticalOffset { ";
+            css += "position:fixed;";
+            css += "top:30%;";
+            css += "width:100%;";
+            css += "z-index:40002; }";
+
+            css += ".blanketDialogBox { ";
+            css += "width:405px; ";
+            css += "position:relative;";
+            css += "margin:0 auto;";
+            css += "background-color:white;";
+            css += "padding:10px;";
+            css += "border:1px solid black; }";
+
+        var dom = document.createElement("style");
+        dom.innerHTML = css;
+        document.head.appendChild(dom);
+
+        var div = document.createElement("div");
+        div.id = "blanketLoaderDialog";
+        div.className = "blanketDialogWrapper";
+        div.innerHTML = loader;
+        document.body.insertBefore(div,document.body.firstChild);
+
+    },
+    manualFileLoader: function(files){
+        var toArray =Array.prototype.slice;
+        files = toArray.call(files).filter(function(item){
+            return item.type !== "";
+        });
+        var sessionLength = files.length-1;
+        var sessionIndx=0;
+        var sessionArray = {};
+        if (sessionStorage["blanketSessionLoader"]){
+            sessionArray = JSON.parse(sessionStorage["blanketSessionLoader"]);
+        }
+
+
+        var fileLoader = function(event){
+            var fileContent = event.currentTarget.result;
+            var file = files[sessionIndx];
+            var filename = file.webkitRelativePath && file.webkitRelativePath !== '' ? file.webkitRelativePath : file.name;
+            sessionArray[filename] = fileContent;
+            sessionIndx++;
+            if (sessionIndx === sessionLength){
+                sessionStorage.setItem("blanketSessionLoader", JSON.stringify(sessionArray));
+                document.location.reload();
+            }else{
+                readFile(files[sessionIndx]);
+            }
+        };
+        function readFile(file){
+            var reader = new FileReader();
+            reader.onload = fileLoader;
+            reader.readAsText(file);
+        }
+        readFile(files[sessionIndx]);
+    },
+    _loadFile: function(path){
+        if (typeof path !== "undefined"){
+            var request = new XMLHttpRequest();
+            request.open('GET', path, false);
+            request.send();
+            _blanket._addScript(request.responseText);
+        }
+    },
+    _addScript: function(data){
+        var script = document.createElement("script");
+        script.type = "text/javascript";
+        script.text = data;
+        (document.body || document.getElementsByTagName('head')[0]).appendChild(script);
+    },
+    hasAdapter: function(callback){
+        return _blanket.options("adapter") !== null;
+    },
+    report: function(coverage_data){
+        if (!document.getElementById("blanketLoaderDialog")){
+            //all found, clear it
+            _blanket.blanketSession = null;
+        }
+        coverage_data.files = window._$blanket;
+        var require = blanket.options("commonJS") ? blanket._commonjs.require : window.require;
+
+        // Check if we have any covered files that requires reporting
+        // otherwise just exit gracefully.
+        if (!coverage_data.files || !Object.keys(coverage_data.files).length) {
+            if (_blanket.options("debug")) {console.log("BLANKET-Reporting No files were instrumented.");}
+            return;
+        }
+
+        if (typeof coverage_data.files.branchFcn !== "undefined"){
+            delete coverage_data.files.branchFcn;
+        }
+        if (typeof _blanket.options("reporter") === "string"){
+            _blanket._loadFile(_blanket.options("reporter"));
+            _blanket.customReporter(coverage_data,_blanket.options("reporter_options"));
+        }else if (typeof _blanket.options("reporter") === "function"){
+            _blanket.options("reporter")(coverage_data,_blanket.options("reporter_options"));
+        }else if (typeof _blanket.defaultReporter === 'function'){
+            _blanket.defaultReporter(coverage_data,_blanket.options("reporter_options"));
+        }else{
+            throw new Error("no reporter defined.");
+        }
+    },
+    _bindStartTestRunner: function(bindEvent,startEvent){
+        if (bindEvent){
+            bindEvent(startEvent);
+        }else{
+            window.addEventListener("load",startEvent,false);
+        }
+    },
+    _loadSourceFiles: function(callback){
+        var require = blanket.options("commonJS") ? blanket._commonjs.require : window.require;
+        function copy(o){
+          var _copy = Object.create( Object.getPrototypeOf(o) );
+          var propNames = Object.getOwnPropertyNames(o);
+
+          propNames.forEach(function(name){
+            var desc = Object.getOwnPropertyDescriptor(o, name);
+            Object.defineProperty(_copy, name, desc);
+          });
+
+          return _copy;
+        }
+        if (_blanket.options("debug")) {console.log("BLANKET-Collecting page scripts");}
+        var scripts = _blanket.utils.collectPageScripts();
+        //_blanket.options("filter",scripts);
+        if (scripts.length === 0){
+            callback();
+        }else{
+
+            //check session state
+            if (sessionStorage["blanketSessionLoader"]){
+                _blanket.blanketSession = JSON.parse(sessionStorage["blanketSessionLoader"]);
+            }
+
+            scripts.forEach(function(file,indx){
+                _blanket.utils.cache[file]={
+                    loaded:false
+                };
+            });
+
+            var currScript=-1;
+            _blanket.utils.loadAll(function(test){
+                if (test){
+                  return typeof scripts[currScript+1] !== 'undefined';
+                }
+                currScript++;
+                if (currScript >= scripts.length){
+                  return null;
+                }
+                return scripts[currScript];
+            },callback);
+        }
+    },
+    beforeStartTestRunner: function(opts){
+        opts = opts || {};
+        opts.checkRequirejs = typeof opts.checkRequirejs === "undefined" ? true : opts.checkRequirejs;
+        opts.callback = opts.callback || function() {  };
+        opts.coverage = typeof opts.coverage === "undefined" ? true : opts.coverage;
+        if (opts.coverage) {
+            _blanket._bindStartTestRunner(opts.bindEvent,
+            function(){
+                _blanket._loadSourceFiles(function() {
+
+                    var allLoaded = function(){
+                        return opts.condition ? opts.condition() : _blanket.requireFilesLoaded();
+                    };
+                    var check = function() {
+                        if (allLoaded()) {
+                            if (_blanket.options("debug")) {console.log("BLANKET-All files loaded, init start test runner callback.");}
+                            var cb = _blanket.options("testReadyCallback");
+
+                            if (cb){
+                                if (typeof cb === "function"){
+                                    cb(opts.callback);
+                                }else if (typeof cb === "string"){
+                                    _blanket._addScript(cb);
+                                    opts.callback();
+                                }
+                            }else{
+                                opts.callback();
+                            }
+                        } else {
+                            setTimeout(check, 13);
+                        }
+                    };
+                    check();
+                });
+            });
+        }else{
+            opts.callback();
+        }
+    },
+    utils: {
+        qualifyURL: function (url) {
+            //http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
+            var a = document.createElement('a');
+            a.href = url;
+            return a.href;
+        }
+    }
+});
+
+})(blanket);
+
+blanket.defaultReporter = function(coverage){
+    var cssSytle = "#blanket-main {margin:2px;background:#EEE;color:#333;clear:both;font-family:'Helvetica Neue Light', 'HelveticaNeue-Light', 'Helvetica Neue', Calibri, Helvetica, Arial, sans-serif; font-size:17px;} #blanket-main a {color:#333;text-decoration:none;}  #blanket-main a:hover {text-decoration:underline;} .blanket {margin:0;padding:5px;clear:both;border-bottom: 1px solid #FFFFFF;} .bl-error {color:red;}.bl-success {color:#5E7D00;} .bl-file{width:auto;} .bl-cl{float:left;} .blanket div.rs {margin-left:50px; width:150px; float:right} .bl-nb {padding-right:10px;} #blanket-main a.bl-logo {color: #EB1764;cursor: pointer;font-weight: bold;text-decoration: none} .bl-source{ overflow-x:scroll; background-color: #FFFFFF; border: 1px solid #CBCBCB; color: #363636; margin: 25px 20px; width: 80%;} .bl-source div{white-space: pre;font-family: monospace;} .bl-source > div > span:first-child{background-color: #EAEAEA;color: #949494;display: inline-block;padding: 0 10px;text-align: center;width: 30px;} .bl-source .miss{background-color:#e6c3c7} .bl-source span.branchWarning{color:#000;background-color:yellow;} .bl-source span.branchOkay{color:#000;background-color:transparent;}",
+        successRate = 60,
+        head = document.head,
+        fileNumber = 0,
+        body = document.body,
+        headerContent,
+        hasBranchTracking = Object.keys(coverage.files).some(function(elem){
+          return typeof coverage.files[elem].branchData !== 'undefined';
+        }),
+        bodyContent = "
 results
Coverage (%)
Covered/Total Smts.
"+(hasBranchTracking ? "
Covered/Total Branches
":"")+"
",
+        fileTemplate = "
{{fileNumber}}.{{file}}
{{percentage}} %
{{numberCovered}}/{{totalSmts}}
"+( hasBranchTracking ? "
{{passedBranches}}/{{totalBranches}}
" : "" )+"
";
+        grandTotalTemplate = "
{{rowTitle}}
{{percentage}} %
{{numberCovered}}/{{totalSmts}}
"+( hasBranchTracking ? "
{{passedBranches}}/{{totalBranches}}
" : "" ) + "
";
+
+    function blanket_toggleSource(id) {
+        var element = document.getElementById(id);
+        if(element.style.display === 'block') {
+            element.style.display = 'none';
+        } else {
+            element.style.display = 'block';
+        }
+    }
+
+
+    var script = document.createElement("script");
+    script.type = "text/javascript";
+    script.text = blanket_toggleSource.toString().replace('function ' + blanket_toggleSource.name, 'function blanket_toggleSource');
+    body.appendChild(script);
+
+    var percentage = function(number, total) {
+        return (Math.round(((number/total) * 100)*100)/100);
+    };
+
+    var appendTag = function (type, el, str) {
+        var dom = document.createElement(type);
+        dom.innerHTML = str;
+        el.appendChild(dom);
+    };
+
+    function escapeInvalidXmlChars(str) {
+        return str.replace(/\&/g, "&")
+            .replace(//g, ">")
+            .replace(/\"/g, """)
+            .replace(/\'/g, "'");
+    }
+
+    function isBranchFollowed(data,bool){
+        var mode = bool ? 0 : 1;
+        if (typeof data === 'undefined' ||
+            typeof data === null ||
+            typeof data[mode] === 'undefined'){
+            return false;
+        }
+        return data[mode].length > 0;
+    }
+
+    var branchStack = [];
+
+    function branchReport(colsIndex,src,cols,offset,lineNum){
+      var newsrc="";
+       var postfix="";
+      if (branchStack.length > 0){
+        newsrc += "";
+        if (branchStack[0][0].end.line === lineNum){
+          newsrc += escapeInvalidXmlChars(src.slice(0,branchStack[0][0].end.column)) + "";
+          src = src.slice(branchStack[0][0].end.column);
+          branchStack.shift();
+          if (branchStack.length > 0){
+            newsrc += "";
+            if (branchStack[0][0].end.line === lineNum){
+              newsrc += escapeInvalidXmlChars(src.slice(0,branchStack[0][0].end.column)) + "";
+              src = src.slice(branchStack[0][0].end.column);
+              branchStack.shift();
+              if (!cols){
+                return {src: newsrc + escapeInvalidXmlChars(src) ,cols:cols};
+              }
+            }
+            else if (!cols){
+              return {src: newsrc + escapeInvalidXmlChars(src) + "",cols:cols};
+            }
+            else{
+              postfix = "";
+            }
+          }else if (!cols){
+            return {src: newsrc + escapeInvalidXmlChars(src) ,cols:cols};
+          }
+        }else if(!cols){
+          return {src: newsrc + escapeInvalidXmlChars(src) + "",cols:cols};
+        }else{
+          postfix = "";
+        }
+      }
+      var thisline = cols[colsIndex];
+      //consequent
+
+      var cons = thisline.consequent;
+      if (cons.start.line > lineNum){
+        branchStack.unshift([thisline.alternate,thisline]);
+        branchStack.unshift([cons,thisline]);
+        src = escapeInvalidXmlChars(src);
+      }else{
+        var style = "";
+        newsrc += escapeInvalidXmlChars(src.slice(0,cons.start.column-offset)) + style;
+
+        if (cols.length > colsIndex+1 &&
+          cols[colsIndex+1].consequent.start.line === lineNum &&
+          cols[colsIndex+1].consequent.start.column-offset < cols[colsIndex].consequent.end.column-offset)
+        {
+          var res = branchReport(colsIndex+1,src.slice(cons.start.column-offset,cons.end.column-offset),cols,cons.start.column-offset,lineNum);
+          newsrc += res.src;
+          cols = res.cols;
+          cols[colsIndex+1] = cols[colsIndex+2];
+          cols.length--;
+        }else{
+          newsrc += escapeInvalidXmlChars(src.slice(cons.start.column-offset,cons.end.column-offset));
+        }
+        newsrc += "";
+
+        var alt = thisline.alternate;
+        if (alt.start.line > lineNum){
+          newsrc += escapeInvalidXmlChars(src.slice(cons.end.column-offset));
+          branchStack.unshift([alt,thisline]);
+        }else{
+          newsrc += escapeInvalidXmlChars(src.slice(cons.end.column-offset,alt.start.column-offset));
+          style = "";
+          newsrc +=  style;
+          if (cols.length > colsIndex+1 &&
+            cols[colsIndex+1].consequent.start.line === lineNum &&
+            cols[colsIndex+1].consequent.start.column-offset < cols[colsIndex].alternate.end.column-offset)
+          {
+            var res2 = branchReport(colsIndex+1,src.slice(alt.start.column-offset,alt.end.column-offset),cols,alt.start.column-offset,lineNum);
+            newsrc += res2.src;
+            cols = res2.cols;
+            cols[colsIndex+1] = cols[colsIndex+2];
+            cols.length--;
+          }else{
+            newsrc += escapeInvalidXmlChars(src.slice(alt.start.column-offset,alt.end.column-offset));
+          }
+          newsrc += "";
+          newsrc += escapeInvalidXmlChars(src.slice(alt.end.column-offset));
+          src = newsrc;
+        }
+      }
+      return {src:src+postfix, cols:cols};
+    }
+
+    var isUndefined =  function(item){
+            return typeof item !== 'undefined';
+      };
+
+    var files = coverage.files;
+    var totals = {
+      totalSmts: 0,
+      numberOfFilesCovered: 0,
+      passedBranches: 0,
+      totalBranches: 0,
+      moduleTotalStatements : {},
+      moduleTotalCoveredStatements : {},
+      moduleTotalBranches : {},
+      moduleTotalCoveredBranches : {}
+    };
+
+    // check if a data-cover-modulepattern was provided for per-module coverage reporting
+    var modulePattern = _blanket.options("modulePattern");
+    var modulePatternRegex = ( modulePattern ? new RegExp(modulePattern) : null );
+
+    for(var file in files)
+    {
+        fileNumber++;
+
+        var statsForFile = files[file],
+            totalSmts = 0,
+            numberOfFilesCovered = 0,
+            code = [],
+            i;
+
+
+        var end = [];
+        for(i = 0; i < statsForFile.source.length; i +=1){
+            var src = statsForFile.source[i];
+
+            if (branchStack.length > 0 ||
+                typeof statsForFile.branchData !== 'undefined')
+            {
+                if (typeof statsForFile.branchData[i+1] !== 'undefined')
+                {
+                  var cols = statsForFile.branchData[i+1].filter(isUndefined);
+                  var colsIndex=0;
+
+
+                  src = branchReport(colsIndex,src,cols,0,i+1).src;
+
+                }else if (branchStack.length){
+                  src = branchReport(0,src,null,0,i+1).src;
+                }else{
+                  src = escapeInvalidXmlChars(src);
+                }
+              }else{
+                src = escapeInvalidXmlChars(src);
+              }
+              var lineClass="";
+              if(statsForFile[i+1]) {
+                numberOfFilesCovered += 1;
+                totalSmts += 1;
+                lineClass = 'hit';
+              }else{
+                if(statsForFile[i+1] === 0){
+                    totalSmts++;
+                    lineClass = 'miss';
+                }
+              }
+              code[i + 1] = "
"+(i + 1)+""+src+"
";
+        }
+        totals.totalSmts += totalSmts;
+        totals.numberOfFilesCovered += numberOfFilesCovered;
+        var totalBranches=0;
+        var passedBranches=0;
+        if (typeof statsForFile.branchData !== 'undefined'){
+          for(var j=0;j 0 &&
+                    typeof statsForFile.branchData[j][k][1] !== 'undefined' &&
+                    statsForFile.branchData[j][k][1].length > 0){
+                    passedBranches++;
+                  }
+                }
+              }
+            }
+          }
+        }
+        totals.passedBranches += passedBranches;
+        totals.totalBranches += totalBranches;
+
+        // if "data-cover-modulepattern" was provided,
+        // track totals per module name as well as globally
+        if (modulePatternRegex) {
+            var moduleName = file.match(modulePatternRegex)[1];
+
+            if(!totals.moduleTotalStatements.hasOwnProperty(moduleName)) {
+                totals.moduleTotalStatements[moduleName] = 0;
+                totals.moduleTotalCoveredStatements[moduleName] = 0;
+            }
+
+            totals.moduleTotalStatements[moduleName] += totalSmts;
+            totals.moduleTotalCoveredStatements[moduleName] += numberOfFilesCovered;
+
+            if(!totals.moduleTotalBranches.hasOwnProperty(moduleName)) {
+                totals.moduleTotalBranches[moduleName] = 0;
+                totals.moduleTotalCoveredBranches[moduleName] = 0;
+            }
+
+            totals.moduleTotalBranches[moduleName] += totalBranches;
+            totals.moduleTotalCoveredBranches[moduleName] += passedBranches;
+        }
+
+        var result = percentage(numberOfFilesCovered, totalSmts);
+
+        var output = fileTemplate.replace("{{file}}", file)
+                                 .replace("{{percentage}}",result)
+                                 .replace("{{numberCovered}}", numberOfFilesCovered)
+                                 .replace(/\{\{fileNumber\}\}/g, fileNumber)
+                                 .replace("{{totalSmts}}", totalSmts)
+                                 .replace("{{totalBranches}}", totalBranches)
+                                 .replace("{{passedBranches}}", passedBranches)
+                                 .replace("{{source}}", code.join(" "));
+        if(result < successRate)
+        {
+            output = output.replace("{{statusclass}}", "bl-error");
+        } else {
+            output = output.replace("{{statusclass}}", "bl-success");
+        }
+        bodyContent += output;
+    }
+
+    // create temporary function for use by the global totals reporter,
+    // as well as the per-module totals reporter
+    var createAggregateTotal = function(numSt, numCov, numBranch, numCovBr, moduleName) {
+
+        var totalPercent = percentage(numCov, numSt);
+        var statusClass = totalPercent < successRate ? "bl-error" : "bl-success";
+        var rowTitle = ( moduleName ? "Total for module: " + moduleName : "Global total" );
+        var totalsOutput = grandTotalTemplate.replace("{{rowTitle}}", rowTitle)
+            .replace("{{percentage}}", totalPercent)
+            .replace("{{numberCovered}}", numCov)
+            .replace("{{totalSmts}}", numSt)
+            .replace("{{passedBranches}}", numCovBr)
+            .replace("{{totalBranches}}", numBranch)
+            .replace("{{statusclass}}", statusClass);
+
+        bodyContent += totalsOutput;
+    };
+
+    // if "data-cover-modulepattern" was provided,
+    // output the per-module totals alongside the global totals
+    if (modulePatternRegex) {
+        for (var thisModuleName in totals.moduleTotalStatements) {
+            if (totals.moduleTotalStatements.hasOwnProperty(thisModuleName)) {
+
+                var moduleTotalSt = totals.moduleTotalStatements[thisModuleName];
+                var moduleTotalCovSt = totals.moduleTotalCoveredStatements[thisModuleName];
+
+                var moduleTotalBr = totals.moduleTotalBranches[thisModuleName];
+                var moduleTotalCovBr = totals.moduleTotalCoveredBranches[thisModuleName];
+
+                createAggregateTotal(moduleTotalSt, moduleTotalCovSt, moduleTotalBr, moduleTotalCovBr, thisModuleName);
+            }
+        }
+    }
+
+    createAggregateTotal(totals.totalSmts, totals.numberOfFilesCovered, totals.totalBranches, totals.passedBranches, null);
+    bodyContent += "
"; //closing main
+
+
+    appendTag('style', head, cssSytle);
+    //appendStyle(body, headerContent);
+    if (document.getElementById("blanket-main")){
+        document.getElementById("blanket-main").innerHTML=
+            bodyContent.slice(23,-6);
+    }else{
+        appendTag('div', body, bodyContent);
+    }
+    //appendHtml(body, '');
+};
+
+(function(){
+    var newOptions={};
+    //http://stackoverflow.com/a/2954896
+    var toArray =Array.prototype.slice;
+    var scripts = toArray.call(document.scripts);
+    toArray.call(scripts[scripts.length - 1].attributes)
+                    .forEach(function(es){
+                        if(es.nodeName === "data-cover-only"){
+                            newOptions.filter = es.nodeValue;
+                        }
+                        if(es.nodeName === "data-cover-never"){
+                            newOptions.antifilter = es.nodeValue;
+                        }
+                        if(es.nodeName === "data-cover-reporter"){
+                            newOptions.reporter = es.nodeValue;
+                        }
+                        if (es.nodeName === "data-cover-adapter"){
+                            newOptions.adapter = es.nodeValue;
+                        }
+                        if (es.nodeName === "data-cover-loader"){
+                            newOptions.loader = es.nodeValue;
+                        }
+                        if (es.nodeName === "data-cover-timeout"){
+                            newOptions.timeout = es.nodeValue;
+                        }
+                        if (es.nodeName === "data-cover-modulepattern") {
+                            newOptions.modulePattern = es.nodeValue;
+                        }
+                        if (es.nodeName === "data-cover-reporter-options"){
+                            try{
+                                newOptions.reporter_options = JSON.parse(es.nodeValue);
+                            }catch(e){
+                                if (blanket.options("debug")){
+                                    throw new Error("Invalid reporter options.  Must be a valid stringified JSON object.");
+                                }
+                            }
+                        }
+                        if (es.nodeName === "data-cover-testReadyCallback"){
+                            newOptions.testReadyCallback = es.nodeValue;
+                        }
+                        if (es.nodeName === "data-cover-customVariable"){
+                            newOptions.customVariable = es.nodeValue;
+                        }
+                        if (es.nodeName === "data-cover-flags"){
+                            var flags = " "+es.nodeValue+" ";
+                            if (flags.indexOf(" ignoreError ") > -1){
+                                newOptions.ignoreScriptError = true;
+                            }
+                            if (flags.indexOf(" autoStart ") > -1){
+                                newOptions.autoStart = true;
+                            }
+                            if (flags.indexOf(" ignoreCors ") > -1){
+                                newOptions.ignoreCors = true;
+                            }
+                            if (flags.indexOf(" branchTracking ") > -1){
+                                newOptions.branchTracking = true;
+                            }
+                            if (flags.indexOf(" sourceURL ") > -1){
+                                newOptions.sourceURL = true;
+                            }
+                            if (flags.indexOf(" debug ") > -1){
+                                newOptions.debug = true;
+                            }
+                            if (flags.indexOf(" engineOnly ") > -1){
+                                newOptions.engineOnly = true;
+                            }
+                            if (flags.indexOf(" commonJS ") > -1){
+                                newOptions.commonJS = true;
+                            }
+                             if (flags.indexOf(" instrumentCache ") > -1){
+                                newOptions.instrumentCache = true;
+                            }
+                        }
+                    });
+    blanket.options(newOptions);
+
+    if (typeof requirejs !== 'undefined'){
+        blanket.options("existingRequireJS",true);
+    }
+    /* setup requirejs loader, if needed */
+
+    if (blanket.options("commonJS")){
+        blanket._commonjs = {};
+    }
+})();
+(function(_blanket){
+_blanket.extend({
+    utils: {
+        normalizeBackslashes: function(str) {
+            return str.replace(/\\/g, '/');
+        },
+        matchPatternAttribute: function(filename,pattern){
+            if (typeof pattern === 'string'){
+                if (pattern.indexOf("[") === 0){
+                    //treat as array
+                    var pattenArr = pattern.slice(1,pattern.length-1).split(",");
+                    return pattenArr.some(function(elem){
+                        return _blanket.utils.matchPatternAttribute(filename,_blanket.utils.normalizeBackslashes(elem.slice(1,-1)));
+                        //return filename.indexOf(_blanket.utils.normalizeBackslashes(elem.slice(1,-1))) > -1;
+                    });
+                }else if ( pattern.indexOf("//") === 0){
+                    var ex = pattern.slice(2,pattern.lastIndexOf('/'));
+                    var mods = pattern.slice(pattern.lastIndexOf('/')+1);
+                    var regex = new RegExp(ex,mods);
+                    return regex.test(filename);
+                }else if (pattern.indexOf("#") === 0){
+                    return window[pattern.slice(1)].call(window,filename);
+                }else{
+                    return filename.indexOf(_blanket.utils.normalizeBackslashes(pattern)) > -1;
+                }
+            }else if ( pattern instanceof Array ){
+                return pattern.some(function(elem){
+                    return _blanket.utils.matchPatternAttribute(filename,elem);
+                });
+            }else if (pattern instanceof RegExp){
+                return pattern.test(filename);
+            }else if (typeof pattern === "function"){
+                return pattern.call(window,filename);
+            }
+        },
+        blanketEval: function(data){
+            _blanket._addScript(data);
+        },
+        collectPageScripts: function(){
+            var toArray = Array.prototype.slice;
+            var scripts = toArray.call(document.scripts);
+            var selectedScripts=[],scriptNames=[];
+            var filter = _blanket.options("filter");
+            if(filter != null){
+                //global filter in place, data-cover-only
+                var antimatch = _blanket.options("antifilter");
+                selectedScripts = toArray.call(document.scripts)
+                                .filter(function(s){
+                                    return toArray.call(s.attributes).filter(function(sn){
+                                        return sn.nodeName === "src" && _blanket.utils.matchPatternAttribute(sn.nodeValue,filter) &&
+                                            (typeof antimatch === "undefined" || !_blanket.utils.matchPatternAttribute(sn.nodeValue,antimatch));
+                                    }).length === 1;
+                                });
+            }else{
+                selectedScripts = toArray.call(document.querySelectorAll("script[data-cover]"));
+            }
+            scriptNames = selectedScripts.map(function(s){
+                                    return _blanket.utils.qualifyURL(
+                                        toArray.call(s.attributes).filter(
+                                            function(sn){
+                                                return sn.nodeName === "src";
+                                            })[0].nodeValue);
+                                    });
+            if (!filter){
+                _blanket.options("filter","['"+scriptNames.join("','")+"']");
+            }
+            return scriptNames;
+        },
+        loadAll: function(nextScript,cb,preprocessor){
+            /**
+             * load dependencies
+             * @param {nextScript} factory for priority level
+             * @param {cb} the done callback
+             */
+            var currScript=nextScript();
+            var isLoaded = _blanket.utils.scriptIsLoaded(
+                                currScript,
+                                _blanket.utils.ifOrdered,
+                                nextScript,
+                                cb
+                            );
+
+            if (!(_blanket.utils.cache[currScript] && _blanket.utils.cache[currScript].loaded)){
+                var attach = function(){
+                    if (_blanket.options("debug")) {console.log("BLANKET-Mark script:"+currScript+", as loaded and move to next script.");}
+                    isLoaded();
+                };
+                var whenDone = function(result){
+                    if (_blanket.options("debug")) {console.log("BLANKET-File loading finished");}
+                    if (typeof result !== 'undefined'){
+                        if (_blanket.options("debug")) {console.log("BLANKET-Add file to DOM.");}
+                        _blanket._addScript(result);
+                    }
+                    attach();
+                };
+
+                _blanket.utils.attachScript(
+                    {
+                        url: currScript
+                    },
+                    function (content){
+                        _blanket.utils.processFile(
+                            content,
+                            currScript,
+                            whenDone,
+                            whenDone
+                        );
+                    }
+                );
+            }else{
+                isLoaded();
+            }
+        },
+        attachScript: function(options,cb){
+           var timeout = _blanket.options("timeout") || 3000;
+           setTimeout(function(){
+                if (!_blanket.utils.cache[options.url].loaded){
+                    throw new Error("error loading source script");
+                }
+           },timeout);
+           _blanket.utils.getFile(
+                options.url,
+                cb,
+                function(){ throw new Error("error loading source script");}
+            );
+        },
+        ifOrdered: function(nextScript,cb){
+            /**
+             * ordered loading callback
+             * @param {nextScript} factory for priority level
+             * @param {cb} the done callback
+             */
+            var currScript = nextScript(true);
+            if (currScript){
+              _blanket.utils.loadAll(nextScript,cb);
+            }else{
+              cb(new Error("Error in loading chain."));
+            }
+        },
+        scriptIsLoaded: function(url,orderedCb,nextScript,cb){
+            /**
+           * returns a callback that checks a loading list to see if a script is loaded.
+           * @param {orderedCb} callback if ordered loading is being done
+           * @param {nextScript} factory for next priority level
+           * @param {cb} the done callback
+           */
+           if (_blanket.options("debug")) {console.log("BLANKET-Returning function");}
+            return function(){
+                if (_blanket.options("debug")) {console.log("BLANKET-Marking file as loaded: "+url);}
+
+                _blanket.utils.cache[url].loaded=true;
+
+                if (_blanket.utils.allLoaded()){
+                    if (_blanket.options("debug")) {console.log("BLANKET-All files loaded");}
+                    cb();
+                }else if (orderedCb){
+                    //if it's ordered we need to
+                    //traverse down to the next
+                    //priority level
+                    if (_blanket.options("debug")) {console.log("BLANKET-Load next file.");}
+                    orderedCb(nextScript,cb);
+                }
+            };
+        },
+        cache: {},
+        allLoaded: function (){
+            /**
+             * check if depdencies are loaded in cache
+             */
+            var cached = Object.keys(_blanket.utils.cache);
+            for (var i=0;i -1){
+                        callback(_blanket.blanketSession[key]);
+                        foundInSession=true;
+                        return;
+                    }
+                }
+            }
+            if (!foundInSession){
+                var xhr = _blanket.utils.createXhr();
+                xhr.open('GET', url, true);
+
+                //Allow overrides specified in config
+                if (onXhr) {
+                    onXhr(xhr, url);
+                }
+
+                xhr.onreadystatechange = function (evt) {
+                    var status, err;
+
+                    //Do not explicitly handle errors, those should be
+                    //visible via console output in the browser.
+                    if (xhr.readyState === 4) {
+                        status = xhr.status;
+                        if ((status > 399 && status < 600) /*||
+                            (status === 0 &&
+                                navigator.userAgent.toLowerCase().indexOf('firefox') > -1)
+                           */ ) {
+                            //An http 4xx or 5xx error. Signal an error.
+                            err = new Error(url + ' HTTP status: ' + status);
+                            err.xhr = xhr;
+                            errback(err);
+                        } else {
+                            callback(xhr.responseText);
+                        }
+                    }
+                };
+                try{
+                    xhr.send(null);
+                }catch(e){
+                    if (e.code && (e.code === 101 || e.code === 1012) && _blanket.options("ignoreCors") === false){
+                        //running locally and getting error from browser
+                        _blanket.showManualLoader();
+                    } else {
+                        throw e;
+                    }
+                }
+            }
+        }
+    }
+});
+
+(function(){
+    var require = blanket.options("commonJS") ? blanket._commonjs.require : window.require;
+    var requirejs = blanket.options("commonJS") ? blanket._commonjs.requirejs : window.requirejs;
+    if (!_blanket.options("engineOnly") && _blanket.options("existingRequireJS")){
+
+        _blanket.utils.oldloader = requirejs.load;
+
+        requirejs.load = function (context, moduleName, url) {
+            _blanket.requiringFile(url);
+            _blanket.utils.getFile(url,
+                function(content){
+                    _blanket.utils.processFile(
+                        content,
+                        url,
+                        function newLoader(){
+                            context.completeLoad(moduleName);
+                        },
+                        function oldLoader(){
+                            _blanket.utils.oldloader(context, moduleName, url);
+                        }
+                    );
+                }, function (err) {
+                _blanket.requiringFile();
+                throw err;
+            });
+        };
+    }
+    // Save the XHR constructor, just in case frameworks like Sinon would sandbox it.
+    _blanket.utils.cacheXhrConstructor();
+})();
+
+})(blanket);
+
+(function(){
+if (typeof QUnit !== 'undefined'){
+    //check to make sure requirejs is completed before we start the test runner
+    var allLoaded = function() {
+        return window.QUnit.config.queue.length > 0 && blanket.noConflict().requireFilesLoaded();
+    };
+
+    if (!QUnit.config.urlConfig[0].tooltip){
+        //older versions we run coverage automatically
+        //and we change how events are binded
+        QUnit.begin=function(){
+            blanket.noConflict().setupCoverage();
+        };
+
+        QUnit.done=function(failures, total) {
+            blanket.noConflict().onTestsDone();
+        };
+        QUnit.moduleStart=function( details ) {
+            blanket.noConflict().onModuleStart();
+        };
+        QUnit.testStart=function( details ) {
+            blanket.noConflict().onTestStart();
+        };
+        QUnit.testDone=function( details ) {
+            blanket.noConflict().onTestDone(details.total,details.passed);
+        };
+        blanket.beforeStartTestRunner({
+            condition: allLoaded,
+            callback: QUnit.start
+        });
+    }else{
+        QUnit.config.urlConfig.push({
+            id: "coverage",
+            label: "Enable coverage",
+            tooltip: "Enable code coverage."
+        });
+
+        if ( QUnit.urlParams.coverage || blanket.options("autoStart") ) {
+            QUnit.begin(function(){
+                blanket.noConflict().setupCoverage();
+            });
+
+            QUnit.done(function(failures, total) {
+                blanket.noConflict().onTestsDone();
+            });
+            QUnit.moduleStart(function( details ) {
+                blanket.noConflict().onModuleStart();
+            });
+            QUnit.testStart(function( details ) {
+                blanket.noConflict().onTestStart();
+            });
+            QUnit.testDone(function( details ) {
+                blanket.noConflict().onTestDone(details.total,details.passed);
+            });
+            blanket.noConflict().beforeStartTestRunner({
+                condition: allLoaded,
+                callback: function(){
+                    if (!(blanket.options("existingRequireJS") && !blanket.options("autoStart"))){
+                        QUnit.start();
+                    }
+                }
+            });
+        }else{
+            if (blanket.options("existingRequireJS")){ requirejs.load = _blanket.utils.oldloader; }
+            blanket.noConflict().beforeStartTestRunner({
+                condition: allLoaded,
+                callback: function(){
+                    if (!(blanket.options("existingRequireJS") && !blanket.options("autoStart"))){
+                        QUnit.start();
+                    }
+                },
+                coverage:false
+            });
+        }
+    }
+}
+})();
diff --git a/node_modules/hammerjs/tests/unit/assets/jquery.min.js b/node_modules/hammerjs/tests/unit/assets/jquery.min.js
new file mode 100644
index 0000000000000000000000000000000000000000..e5ace116b6f53cfec96eb5175ecd36f727ad4047
--- /dev/null
+++ b/node_modules/hammerjs/tests/unit/assets/jquery.min.js
@@ -0,0 +1,4 @@
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