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[TR-3] - preparing structure for tests, first test
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Michał Sajnóg
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Oct 17, 2015
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| var core = function (window) { | ||
| var document = window.document; | ||
|
|
||
| /** | ||
| * Modules & helpers | ||
| */ | ||
| var _throttle = require('lodash.throttle'); | ||
| var _debounce = require('lodash.debounce'); | ||
| var _extend = require('lodash.assign'); | ||
|
|
||
| var observe = require('./libs/observer')(window); | ||
| var classListShim = require('./libs/classList-shim')(window); | ||
|
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| var detect = require('./helpers/detector'); | ||
| var calculateOffset = require('./helpers/calculateOffset'); | ||
| var handleScroll = require('./helpers/handleScroll'); | ||
| var prepare = require('./helpers/prepare'); | ||
| var elements = require('./helpers/elements'); | ||
|
|
||
| /** | ||
| * Private variables | ||
| */ | ||
| var $aosElements = []; | ||
| var initialized = false; | ||
|
|
||
| /** | ||
| * Default options | ||
| */ | ||
| var options = { | ||
| offset: 120, | ||
| delay: 0, | ||
| easing: 'ease', | ||
| duration: 400, | ||
| disable: false, | ||
| once: false, | ||
| startEvent: 'DOMContentLoaded' | ||
| }; | ||
|
|
||
| /** | ||
| * Refresh AOS | ||
| */ | ||
| var refresh = function() { | ||
| // Allow refresh only when it was first initialized on startEvent | ||
| if (initialized) { | ||
| // Extend elements objects in $aosElements with their positions | ||
| $aosElements = prepare($aosElements); | ||
| // Perform scroll event, to refresh view and show/hide elements | ||
| handleScroll($aosElements, options.once); | ||
| } | ||
| }; | ||
|
|
||
| /** | ||
| * Initializing AOS | ||
| * - Create options merging defaults with user defined options | ||
| * - Set attributes on <body> as global setting - css relies on it | ||
| * - Attach preparing elements to options.startEvent, | ||
| * window resize and orientation change | ||
| * - Attach function that handle scroll and everything connected to it | ||
| * to window scroll event and fire once document is ready to set initial state | ||
| */ | ||
| var init = function(settings) { | ||
| options = _extend(options, settings); | ||
|
|
||
| // Create initial array with elements -> to be fullfilled later with prepare() | ||
| $aosElements = elements(); | ||
|
|
||
| /** | ||
| * Check options.disable | ||
| * and do not init plugin if conditions are true | ||
| */ | ||
| if (options.disable) { | ||
| if ( | ||
| options.disable === true || | ||
| (options.disable === 'mobile' && detect.mobile()) || | ||
| (options.disable === 'phone' && detect.phone()) || | ||
| (options.disable === 'tablet' && detect.tablet()) || | ||
| (typeof options.disable === 'function' && options.disable() === true) | ||
| ) { | ||
| [].forEach.call($aosElements, function(el, i) { | ||
| el.node.removeAttribute('aos'); | ||
| el.node.removeAttribute('aos-easing'); | ||
| el.node.removeAttribute('aos-duration'); | ||
| el.node.removeAttribute('aos-delay'); | ||
| }); | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Set global settings on body, based on options | ||
| * so CSS can use it | ||
| */ | ||
| document.querySelector('body').setAttribute('aos-easing', options.easing); | ||
| document.querySelector('body').setAttribute('aos-duration', options.duration); | ||
| document.querySelector('body').setAttribute('aos-delay', options.delay); | ||
|
|
||
| /** | ||
| * Listen to options.startEvent and fire first refresh | ||
| */ | ||
| document.addEventListener(options.startEvent, function() { | ||
| initialized = true; | ||
| refresh(); | ||
| }); | ||
|
|
||
| /** | ||
| * Refresh plugin on window resize or orientation change | ||
| */ | ||
| window.addEventListener('resize orientationchange', _debounce(refresh, 50, true)); | ||
|
|
||
| /** | ||
| * Handle scroll event to animate elements on scroll | ||
| */ | ||
| window.addEventListener('scroll', _throttle(function() { | ||
| handleScroll($aosElements, options.once); | ||
| }, 99)); | ||
|
|
||
| /** | ||
| * Watch if nodes are removed | ||
| * If so refresh plugin | ||
| */ | ||
| document.addEventListener('DOMNodeRemoved', function(event) { | ||
| var el = event.target; | ||
| if (el && el.nodeType === 1 && el.hasAttribute && event.target.hasAttribute('aos')) { | ||
| _debounce(refresh, 50, true) | ||
| } | ||
| }); | ||
|
|
||
| /** | ||
| * Observe [aos] elements | ||
| * If something is loaded by AJAX | ||
| * it'll refresh plugin automatically | ||
| */ | ||
| observe('[aos]', refresh); | ||
|
|
||
| }; | ||
|
|
||
| /** | ||
| * Public API | ||
| */ | ||
| var AOS = { | ||
| init: init, | ||
| refresh: refresh | ||
| }; | ||
|
|
||
| return AOS; | ||
| } | ||
|
|
||
| module.exports = core; |
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