├── .gitignore
├── CHANGELOG.md
├── .jshintrc
├── tasks
    ├── clean.js
    ├── bytesize.js
    ├── changelog.js
    ├── copy.js
    ├── markdox.js
    ├── uglify.js
    ├── watch.js
    ├── jscs.js
    ├── mocha.js
    ├── bump.js
    ├── jshint.js
    ├── copyright.js
    └── buildcontrol.js
├── .travis.yml
├── src
    ├── .jshintrc
    └── events.js
├── bower.json
├── tests
    ├── bower.json
    ├── index.html
    └── spec
    │   └── events.js
├── .jscsrc
├── Gruntfile.js
├── README.md
└── package.json


/.gitignore:
--------------------------------------------------------------------------------
1 | /node_modules
2 | /build
3 | /docs
4 | .DS_Store
5 | /tests/bower_components/
6 | 


--------------------------------------------------------------------------------
/CHANGELOG.md:
--------------------------------------------------------------------------------
1 | <a name="0.0.0"></a>
2 | ## 0.0.0 (2014-12-31)
3 | 
4 | 
5 | <a name="0.0.0"></a>
6 | ## 0.0.0 (2014-12-30)
7 | 
8 | 


--------------------------------------------------------------------------------
/.jshintrc:
--------------------------------------------------------------------------------
 1 | {
 2 |   "curly": true,
 3 |   "eqeqeq": true,
 4 |   "immed": true,
 5 |   "latedef": true,
 6 |   "newcap": true,
 7 |   "noarg": true,
 8 |   "sub": true,
 9 |   "undef": true,
10 |   "unused": "vars",
11 |   "boss": true,
12 |   "eqnull": true,
13 |   "node": true
14 | }
15 | 


--------------------------------------------------------------------------------
/tasks/clean.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   'use strict';
 7 | 
 8 |   grunt.config('clean', {
 9 |     build: ['build', 'docs']
10 |   });
11 | };
12 | 


--------------------------------------------------------------------------------
/.travis.yml:
--------------------------------------------------------------------------------
 1 | language: node_js
 2 | cache: node_modules
 3 | 
 4 | sudo: false
 5 | 
 6 | notifications:
 7 |   email:
 8 |     recipients:
 9 |       - shane@shanetomlinson.com
10 |     on_success: change
11 |     on_failure: always
12 | 
13 | node_js:
14 |   - 0.10.25
15 | 
16 | install:
17 |   - phantomjs --version
18 |   - travis_retry npm install --silent
19 |   - npm run-script setup-bower
20 | 
21 | script:
22 |   - npm test
23 | 
24 | 


--------------------------------------------------------------------------------
/tasks/bytesize.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   'use strict';
 7 | 
 8 |   grunt.config('bytesize', {
 9 |     all: {
10 |       src: ['build/events.js', 'build/events.min.js']
11 |     }
12 |   });
13 | };
14 | 


--------------------------------------------------------------------------------
/tasks/changelog.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   'use strict';
 7 | 
 8 |   grunt.config('changelog', {
 9 |     options: {
10 |       from: 'source-<%= pkgReadOnly.version %>'
11 |     }
12 |   });
13 | };
14 | 


--------------------------------------------------------------------------------
/tasks/copy.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   'use strict';
 7 | 
 8 |   grunt.config('copy', {
 9 |     dist: {
10 |       src: 'src/events.js',
11 |       dest: 'build/events.js'
12 |     }
13 |   });
14 | };
15 | 


--------------------------------------------------------------------------------
/src/.jshintrc:
--------------------------------------------------------------------------------
 1 | {
 2 |   "curly": true,
 3 |   "eqeqeq": true,
 4 |   "immed": true,
 5 |   "latedef": true,
 6 |   "newcap": false,
 7 |   "noarg": true,
 8 |   "node": false,
 9 |   "sub": true,
10 |   "undef": true,
11 |   "devel": true,
12 |   "unused": "vars",
13 |   "boss": true,
14 |   "eqnull": true,
15 |   "browser": true,
16 |   "globals": {
17 |     "define": false,
18 |     "require": false,
19 |     "module": false
20 |   },
21 |   "globalstrict": true
22 | }
23 | 


--------------------------------------------------------------------------------
/tasks/markdox.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   'use strict';
 7 | 
 8 |   grunt.config('markdox', {
 9 |     dist: {
10 |       files: [
11 |         { src: 'src/events.js', dest: 'docs/api.md' }
12 |       ]
13 |     }
14 |   });
15 | };
16 | 


--------------------------------------------------------------------------------
/tasks/uglify.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   'use strict';
 7 | 
 8 |   grunt.config('uglify', {
 9 |     options: {
10 |       sourceMap: true
11 |     },
12 |     dist: {
13 |       files: {
14 |         'build/events.min.js': ['build/events.js']
15 |       }
16 |     }
17 |   });
18 | };
19 | 


--------------------------------------------------------------------------------
/tasks/watch.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   'use strict';
 7 | 
 8 |   grunt.config('watch', {
 9 |     dev: {
10 |       options: {
11 |         atBegin: true
12 |       },
13 |       files: ['Gruntfile.js', 'src/**/*.js', 'tests/**/*.js'],
14 |       tasks: ['build', 'mocha']
15 |     }
16 |   });
17 | };
18 | 


--------------------------------------------------------------------------------
/tasks/jscs.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   'use strict';
 7 | 
 8 |   grunt.config('jscs', {
 9 |     src: [
10 |       '**/*.js',
11 |       '!node_modules/**',
12 |       '!build/**',
13 |       '!docs/**',
14 |       '!tests/**'
15 |     ],
16 |     options: {
17 |       config: '.jscsrc'
18 |     }
19 |   });
20 | };
21 | 


--------------------------------------------------------------------------------
/tasks/mocha.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   'use strict';
 7 | 
 8 |   grunt.config('mocha', {
 9 |     test: {
10 |       src: ['tests/index.html'],
11 |       options: {
12 |         run: true,
13 |         log: true,
14 |         logErrors: true,
15 |         timeout: 20000
16 |       }
17 |     }
18 |   });
19 | };
20 | 


--------------------------------------------------------------------------------
/tasks/bump.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   'use strict';
 7 | 
 8 |   grunt.config('bump', {
 9 |     options: {
10 |       files: ["package.json", "bower.json"],
11 |       push: false,
12 |       createTag: false,
13 |       commitFiles: ['-a'],
14 |       commitMessage: 'Start of release %VERSION%'
15 |     }
16 |   });
17 | };
18 | 


--------------------------------------------------------------------------------
/bower.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "events",
 3 |   "version": "0.0.1",
 4 |   "description": "A Backbone-like events system",
 5 |   "author": "Shane Tomlinson <shane@shanetomlinson.com>",
 6 |   "main": "events.js",
 7 |   "moduleType": [
 8 |     "amd",
 9 |     "globals",
10 |     "node"
11 |   ],
12 |   "keywords": [
13 |     "DOM",
14 |     "jQuery",
15 |     "mircolibrary",
16 |     "DOM",
17 |     "manipulation"
18 |   ],
19 |   "license": "MPL 2.0",
20 |   "ignore": [
21 |     "**/.*",
22 |     "node_modules",
23 |     "bower_components",
24 |     "test",
25 |     "tests"
26 |   ]
27 | }
28 | 


--------------------------------------------------------------------------------
/tests/bower.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "events-tests",
 3 |   "version": "0.0.0",
 4 |   "authors": [
 5 |     "Shane Tomlinson <stomlinson@mozilla.com>"
 6 |   ],
 7 |   "description": "The tests for events library",
 8 |   "moduleType": [
 9 |     "amd",
10 |     "es6"
11 |   ],
12 |   "license": "MPL 2.0",
13 |   "private": true,
14 |   "ignore": [
15 |     "**/.*",
16 |     "node_modules",
17 |     "bower_components",
18 |     "test",
19 |     "tests"
20 |   ],
21 |   "dependencies": {
22 |     "chai": "1.10.0",
23 |     "mocha": "2.1.0",
24 |     "sinon": "http://sinonjs.org/releases/sinon-1.12.2.js"
25 |   }
26 | }
27 | 


--------------------------------------------------------------------------------
/tasks/jshint.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   'use strict';
 7 | 
 8 |   grunt.config('jshint', {
 9 |     config: {
10 |       options: {jshintrc: '.jshintrc'},
11 |       src: ['Gruntfile.js', 'tasks/*.js', 'config/**/*.js', 'node/**/*.js']
12 |     },
13 |     app: {
14 |       options: {jshintrc: 'src/.jshintrc'},
15 |       src: ['src/*.js', 'src/lib/**/*']
16 |     }
17 |   });
18 | };
19 | 


--------------------------------------------------------------------------------
/tasks/copyright.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   'use strict';
 7 | 
 8 |   grunt.config('copyright', {
 9 |     app: {
10 |       options: {
11 |         pattern: /This Source Code Form is subject to the terms of the Mozilla Public/
12 |       },
13 |       src: [
14 |         '**/*.js',
15 |         '!tests/bower_components/**',
16 |         '!build/**',
17 |         '!node_modules/**',
18 |         '!docs/**'
19 |       ]
20 |     }
21 |   });
22 | };
23 | 


--------------------------------------------------------------------------------
/tests/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html>
 3 | <head>
 4 |   <meta charset="utf-8">
 5 |   <link rel="stylesheet" type="text/css" href="bower_components/mocha/mocha.css">
 6 | 
 7 | 	<script src="bower_components/mocha/mocha.js"></script>
 8 | 	<script src="bower_components/chai/chai.js"></script>
 9 | 	<script src="bower_components/sinon/index.js"></script>
10 | 
11 |   <script>
12 |     mocha.setup('bdd');
13 |   </script>
14 | 
15 | 
16 | 
17 | 	<script src="../src/events.js"></script>
18 | 	<script src="spec/events.js"></script>
19 | 
20 |   <title>Events Unit Tests</title>
21 | 
22 | </head>
23 | <body>
24 | 
25 |   <div id="mocha"></div>
26 | 
27 |   <script>
28 |     if (navigator.userAgent.indexOf('PhantomJS') < 0) {
29 |       mocha.run();
30 |     }
31 |   </script>
32 | 
33 | </body>
34 | </html>
35 | 


--------------------------------------------------------------------------------
/tasks/buildcontrol.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   'use strict';
 7 | 
 8 |   grunt.config('buildcontrol', {
 9 |     options: {
10 |       commit: true,
11 |       push: true,
12 |       remote: 'git@github.com:shane-tomlinson/events.git'
13 |     },
14 |     release: {
15 |       options: {
16 |         branch: 'release',
17 |         dir: 'build',
18 |         tag: '<%= pkg.version %>'
19 |       }
20 |     },
21 |     docs: {
22 |       options: {
23 |         branch: 'gh-pages',
24 |         dir: 'docs',
25 |         tag: 'docs-<%= pkg.version %>'
26 |       }
27 |     }
28 |   });
29 | };
30 | 


--------------------------------------------------------------------------------
/.jscsrc:
--------------------------------------------------------------------------------
 1 | {
 2 |     "disallowKeywords": ["with", "eval"],
 3 |     "disallowKeywordsOnNewLine": ["else"],
 4 |     "requireSpaceBeforeBinaryOperators": ["?", "-", "/", "*", "=", "==", "===", "!=", "!==", ">", ">=", "<", "<="],
 5 |     "disallowMultipleLineStrings": true,
 6 |     "requireSpaceAfterBinaryOperators": ["?", "/", "*", ":", "=", "==", "===", "!=", "!==", ">", ">=", "<", "<="],
 7 |     "disallowSpaceAfterObjectKeys": true,
 8 |     "disallowSpaceAfterPrefixUnaryOperators": ["++", "--", "+", "-"],
 9 |     "disallowSpaceBeforePostfixUnaryOperators": ["++", "--"],
10 |     "maximumLineLength": 420,
11 |     "requireCapitalizedConstructors": true,
12 |     "requireCurlyBraces": ["if", "else", "for", "while", "do"],
13 |     "requireLineFeedAtFileEnd": true,
14 |     "requireSpaceAfterKeywords": ["if", "else", "for", "while", "do", "switch", "return"],
15 |     "validateIndentation": 2,
16 |     "validateLineBreaks": "LF",
17 |     "validateQuoteMarks": true,
18 |     "validateJSDoc": {
19 |         "checkParamNames": true,
20 |         "checkRedundantParams": true,
21 |         "requireParamTypes": true
22 |     }
23 | }
24 | 


--------------------------------------------------------------------------------
/Gruntfile.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | module.exports = function (grunt) {
 6 |   // load all grunt tasks matching the `grunt-*` pattern
 7 |   require('load-grunt-tasks')(grunt);
 8 | 
 9 |   var pkg = grunt.file.readJSON('package.json');
10 | 
11 |   grunt.initConfig({
12 |     pkg: pkg,
13 |     pkgReadOnly: pkg
14 |   });
15 | 
16 |   // load local Grunt tasks
17 |   grunt.loadTasks('tasks');
18 | 
19 |   grunt.registerTask('build',
20 |     'Build compressed resources',
21 |     ['clean', 'lint', 'copy', 'uglify', 'bytesize']);
22 | 
23 |   grunt.registerTask('test',
24 |     'Run tests',
25 |     ['mocha']);
26 | 
27 |   grunt.registerTask('lint',
28 |     'Alias for jshint and jscs tasks',
29 |     ['jshint', 'jscs']);
30 | 
31 |   grunt.registerTask('default',
32 |     ['build']);
33 | 
34 |   grunt.registerTask('doc',
35 |     ['markdox']);
36 | 
37 |   grunt.registerTask('release',
38 |     ['build', 'bump-only', 'changelog', 'bump-commit', 'doc', 'buildcontrol']);
39 | };
40 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Events
 2 | 
 3 | A Backbone inspired events system.
 4 | 
 5 | ## API:
 6 | ### on(eventName, callback)
 7 | 
 8 | Add an event listener
 9 | 
10 | #### Params:
11 | 
12 | * **string** *eventName*
13 | * **function** *callback*
14 | 
15 | ### off(eventName, callback)
16 | 
17 | Remove an event listener
18 | 
19 | #### Params:
20 | 
21 | * **string** *eventName*
22 | * **function** *callback*
23 | 
24 | ### trigger(eventName, [arguments])
25 | 
26 | Trigger one or more event listeners.
27 | 
28 | #### Params:
29 | 
30 | * **string** *eventName*
31 | * **variant** *[arguments]*
32 | 
33 | , args...
34 | 
35 | ### once(eventName, callback)
36 | 
37 | Add an event listener that can be run at most one time.
38 | 
39 | #### Params:
40 | 
41 | * **string** *eventName*
42 | * **function** *callback*
43 | 
44 | ## Author:
45 | * Shane Tomlinson
46 | * shane@shanetomlinson.com
47 | * stomlinson@mozilla.com
48 | * set117@yahoo.com
49 | * https://shanetomlinson.com
50 | * https://github.com/shane-tomlinson
51 | * @shane_tomlinson
52 | 
53 | ## Get involved:
54 | 
55 | ## License:
56 | This software is available under version 2.0 of the MPL:
57 | 
58 |   https://www.mozilla.org/MPL/
59 | 
60 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "events",
 3 |   "version": "0.0.1",
 4 |   "description": "A Backbone-like events system",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "start": "grunt",
 8 |     "test": "grunt test",
 9 |     "setup": "npm install && npm run-script setup-bower",
10 |     "setup-bower": "cd tests && bower install && cd ..",
11 |     "contributors": "git shortlog -s | cut -c8- | sort -f > CONTRIBUTORS.md"
12 |   },
13 |   "directories": {
14 |     "test": "tests"
15 |   },
16 |   "author": "Shane Tomlinson <shane@shanetomlinson.com>",
17 |   "license": "MPL 2.0",
18 |   "devDependencies": {
19 |     "bower": "1.3.12",
20 |     "grunt": "0.4.5",
21 |     "grunt-build-control": "git://github.com/robwierzbowski/grunt-build-control#274952",
22 |     "grunt-bump": "0.0.16",
23 |     "grunt-bytesize": "0.1.1",
24 |     "grunt-cli": "0.1.13",
25 |     "grunt-contrib-clean": "0.6.0",
26 |     "grunt-contrib-copy": "0.7.0",
27 |     "grunt-contrib-jshint": "0.10.0",
28 |     "grunt-contrib-uglify": "0.7.0",
29 |     "grunt-contrib-watch": "0.6.1",
30 |     "grunt-conventional-changelog": "1.1.0",
31 |     "grunt-copyright": "0.1.0",
32 |     "grunt-jscs": "1.1.0",
33 |     "grunt-markdox": "1.2.1",
34 |     "grunt-mocha": "0.4.11",
35 |     "load-grunt-tasks": "2.0.0"
36 |   },
37 |   "dependencies": {}
38 | }
39 | 


--------------------------------------------------------------------------------
/tests/spec/events.js:
--------------------------------------------------------------------------------
 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | 
 6 | describe('events', function () {
 7 |   'use strict';
 8 | 
 9 |   var assert = chai.assert;
10 | 
11 |   var testObj;
12 | 
13 |   beforeEach(function () {
14 |     testObj = Object.create(Events);
15 |   });
16 | 
17 |   describe('on/trigger/off', function () {
18 |     it('on attaches an event handler, trigger triggers an event, off stops listening', function () {
19 |       var spy = sinon.spy();
20 | 
21 |       testObj.on('listen-for', spy);
22 |       testObj.trigger('listen-for', 1, 2, 3);
23 |       testObj.trigger('listen-for', 4, 5, 6);
24 |       testObj.off('listen-for', spy);
25 |       testObj.trigger('listen-for', 7, 8, 9);
26 | 
27 |       assert.isTrue(spy.calledTwice);
28 |       assert.isTrue(spy.calledWith(1, 2, 3));
29 |       assert.isTrue(spy.calledWith(4, 5, 6));
30 |       assert.isFalse(spy.calledWith(7, 8, 9));
31 |     });
32 |   });
33 | 
34 |   describe('once/trigger', function () {
35 |     it('only triggers an event once', function () {
36 |       var spy = sinon.spy();
37 | 
38 |       testObj.once('listen-for', spy);
39 |       testObj.trigger('listen-for', 1, 2, 3);
40 |       testObj.trigger('listen-for', 4, 5, 6);
41 | 
42 |       assert.isTrue(spy.calledOnce);
43 |       assert.isTrue(spy.calledWith(1, 2, 3));
44 |       assert.isFalse(spy.calledWith(4, 5, 6));
45 |     });
46 | 
47 |     it('can be removed before being triggered', function () {
48 |       var spy = sinon.spy();
49 | 
50 |       testObj.once('listen-for', spy);
51 |       testObj.off('listen-for', spy);
52 | 
53 |       testObj.trigger('listen-for', 1, 2, 3);
54 | 
55 |       assert.isFalse(spy.called);
56 |     });
57 |   });
58 | });
59 | 
60 | 


--------------------------------------------------------------------------------
/src/events.js:
--------------------------------------------------------------------------------
 1 | // This Source Code Form is subject to the terms of the Mozilla Public
 2 | // License, v. 2.0. If a copy of the MPL was not distributed with this
 3 | // file, You can obtain one at http://mozilla.org/MPL/2.0/.
 4 | 
 5 | /**
 6 |  * @class Events
 7 |  * @author Shane Tomlinson shane@shanetomlinson.com
 8 |  * @version 0.0.0
 9 |  */
10 | 
11 | // jscs: disable
12 | // jshint ignore:start
13 | ;(function(define){define(function(require,exports,module){
14 | // jshint ignore:end
15 | // jscs: enable
16 |   'use strict';
17 | 
18 |   function hasHandler(handlers, eventName) {
19 |     return eventName in handlers;
20 |   }
21 | 
22 |   module.exports = {
23 |     /**
24 |      * Add an event listener
25 |      * @method on
26 |      * @param {string} eventName
27 |      * @param {function} callback
28 |      */
29 |     on: function (eventName, callback) {
30 |       if (! this._handlers) {
31 |         this._handlers = {};
32 |       }
33 | 
34 |       this._handlers[eventName] = this._handlers[eventName] || [];
35 |       this._handlers[eventName].push(callback);
36 |     },
37 | 
38 |     /**
39 |      * Remove an event listener
40 |      * @method off
41 |      * @param {string} eventName
42 |      * @param {function} callback
43 |      */
44 |     off: function (eventName, callback) {
45 |       if (! hasHandler(this._handlers, eventName)) {
46 |         return;
47 |       }
48 | 
49 |       this._handlers[eventName] = this._handlers[eventName].filter(function(handler) {
50 |         return (! (handler === callback || handler.__wraps === callback));
51 |       });
52 |     },
53 | 
54 |     /**
55 |      * Trigger one or more event listeners.
56 |      * @method trigger
57 |      * @param {string} eventName
58 |      */
59 |     trigger: function (eventName/*, args...*/) {
60 |       if (! hasHandler(this._handlers, eventName)) {
61 |         return;
62 |       }
63 | 
64 |       var args = [].slice.call(arguments, 1);
65 |       this._handlers[eventName].forEach(function(func) {
66 |         func.apply(null, args);
67 |       });
68 |     },
69 | 
70 |     /**
71 |      * Add an event listener that can be run at most one time.
72 |      * @method once
73 |      * @param {string} eventName
74 |      * @param {function} callback
75 |      */
76 |     once: function (eventName, callback) {
77 |       var self = this;
78 |       var handler = function () {
79 |         self.off(eventName, handler);
80 |         var args = [].slice.call(arguments, 0);
81 |         callback.apply(null, args);
82 |       };
83 |       // used to remove the handler before being triggered.
84 |       handler.__wraps = callback;
85 | 
86 |       self.on(eventName, handler);
87 |     }
88 |   };
89 | 
90 | // jscs: disable
91 | // jshint ignore:start
92 | });})(typeof define=='function'&&define.amd?define
93 | :(function(n,w){'use strict';return typeof module=='object'?function(c){
94 | c(require,exports,module);}:function(c){var m={exports:{}};c(function(n){
95 | return w[n];},m.exports,m);w[n]=m.exports;};})('Events',this));
96 | // jshint ignore:end
97 | // jscs: enable
98 | 
99 | 


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