514 lines
15 KiB
JavaScript
514 lines
15 KiB
JavaScript
(function() {
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var MutationObserver, Util, WeakMap, getComputedStyle, getComputedStyleRX,
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bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
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indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
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Util = (function() {
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function Util() {}
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Util.prototype.extend = function(custom, defaults) {
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var key, value;
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for (key in defaults) {
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value = defaults[key];
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if (custom[key] == null) {
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custom[key] = value;
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}
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}
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return custom;
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};
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Util.prototype.isMobile = function(agent) {
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return /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(agent);
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};
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Util.prototype.createEvent = function(event, bubble, cancel, detail) {
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var customEvent;
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if (bubble == null) {
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bubble = false;
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}
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if (cancel == null) {
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cancel = false;
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}
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if (detail == null) {
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detail = null;
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}
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if (document.createEvent != null) {
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customEvent = document.createEvent('CustomEvent');
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customEvent.initCustomEvent(event, bubble, cancel, detail);
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} else if (document.createEventObject != null) {
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customEvent = document.createEventObject();
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customEvent.eventType = event;
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} else {
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customEvent.eventName = event;
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}
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return customEvent;
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};
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Util.prototype.emitEvent = function(elem, event) {
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if (elem.dispatchEvent != null) {
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return elem.dispatchEvent(event);
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} else if (event in (elem != null)) {
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return elem[event]();
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} else if (("on" + event) in (elem != null)) {
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return elem["on" + event]();
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}
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};
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Util.prototype.addEvent = function(elem, event, fn) {
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if (elem.addEventListener != null) {
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return elem.addEventListener(event, fn, false);
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} else if (elem.attachEvent != null) {
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return elem.attachEvent("on" + event, fn);
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} else {
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return elem[event] = fn;
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}
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};
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Util.prototype.removeEvent = function(elem, event, fn) {
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if (elem.removeEventListener != null) {
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return elem.removeEventListener(event, fn, false);
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} else if (elem.detachEvent != null) {
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return elem.detachEvent("on" + event, fn);
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} else {
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return delete elem[event];
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}
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};
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Util.prototype.innerHeight = function() {
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if ('innerHeight' in window) {
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return window.innerHeight;
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} else {
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return document.documentElement.clientHeight;
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}
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};
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return Util;
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})();
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WeakMap = this.WeakMap || this.MozWeakMap || (WeakMap = (function() {
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function WeakMap() {
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this.keys = [];
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this.values = [];
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}
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WeakMap.prototype.get = function(key) {
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var i, item, j, len, ref;
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ref = this.keys;
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for (i = j = 0, len = ref.length; j < len; i = ++j) {
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item = ref[i];
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if (item === key) {
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return this.values[i];
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}
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}
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};
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WeakMap.prototype.set = function(key, value) {
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var i, item, j, len, ref;
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ref = this.keys;
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for (i = j = 0, len = ref.length; j < len; i = ++j) {
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item = ref[i];
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if (item === key) {
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this.values[i] = value;
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return;
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}
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}
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this.keys.push(key);
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return this.values.push(value);
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};
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return WeakMap;
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})());
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MutationObserver = this.MutationObserver || this.WebkitMutationObserver || this.MozMutationObserver || (MutationObserver = (function() {
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function MutationObserver() {
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if (typeof console !== "undefined" && console !== null) {
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console.warn('MutationObserver is not supported by your browser.');
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}
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if (typeof console !== "undefined" && console !== null) {
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console.warn('WOW.js cannot detect dom mutations, please call .sync() after loading new content.');
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}
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}
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MutationObserver.notSupported = true;
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MutationObserver.prototype.observe = function() {};
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return MutationObserver;
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})());
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getComputedStyle = this.getComputedStyle || function(el, pseudo) {
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this.getPropertyValue = function(prop) {
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var ref;
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if (prop === 'float') {
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prop = 'styleFloat';
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}
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if (getComputedStyleRX.test(prop)) {
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prop.replace(getComputedStyleRX, function(_, _char) {
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return _char.toUpperCase();
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});
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}
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return ((ref = el.currentStyle) != null ? ref[prop] : void 0) || null;
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};
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return this;
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};
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getComputedStyleRX = /(\-([a-z]){1})/g;
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this.WOW = (function() {
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WOW.prototype.defaults = {
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boxClass: 'wow',
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animateClass: 'animated',
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offset: 0,
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mobile: true,
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live: true,
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callback: null,
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scrollContainer: null
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};
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function WOW(options) {
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if (options == null) {
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options = {};
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}
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this.scrollCallback = bind(this.scrollCallback, this);
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this.scrollHandler = bind(this.scrollHandler, this);
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this.resetAnimation = bind(this.resetAnimation, this);
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this.start = bind(this.start, this);
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this.scrolled = true;
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this.config = this.util().extend(options, this.defaults);
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if (options.scrollContainer != null) {
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this.config.scrollContainer = document.querySelector(options.scrollContainer);
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}
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this.animationNameCache = new WeakMap();
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this.wowEvent = this.util().createEvent(this.config.boxClass);
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}
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WOW.prototype.init = function() {
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var ref;
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this.element = window.document.documentElement;
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if ((ref = document.readyState) === "interactive" || ref === "complete") {
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this.start();
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} else {
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this.util().addEvent(document, 'DOMContentLoaded', this.start);
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}
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return this.finished = [];
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};
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WOW.prototype.start = function() {
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var box, j, len, ref;
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this.stopped = false;
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this.boxes = (function() {
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var j, len, ref, results;
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ref = this.element.querySelectorAll("." + this.config.boxClass);
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results = [];
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for (j = 0, len = ref.length; j < len; j++) {
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box = ref[j];
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results.push(box);
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}
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return results;
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}).call(this);
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this.all = (function() {
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var j, len, ref, results;
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ref = this.boxes;
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results = [];
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for (j = 0, len = ref.length; j < len; j++) {
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box = ref[j];
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results.push(box);
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}
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return results;
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}).call(this);
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if (this.boxes.length) {
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if (this.disabled()) {
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this.resetStyle();
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} else {
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ref = this.boxes;
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for (j = 0, len = ref.length; j < len; j++) {
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box = ref[j];
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this.applyStyle(box, true);
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}
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}
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}
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if (!this.disabled()) {
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this.util().addEvent(this.config.scrollContainer || window, 'scroll', this.scrollHandler);
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this.util().addEvent(window, 'resize', this.scrollHandler);
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this.interval = setInterval(this.scrollCallback, 50);
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}
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if (this.config.live) {
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return new MutationObserver((function(_this) {
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return function(records) {
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var k, len1, node, record, results;
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results = [];
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for (k = 0, len1 = records.length; k < len1; k++) {
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record = records[k];
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results.push((function() {
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var l, len2, ref1, results1;
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ref1 = record.addedNodes || [];
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results1 = [];
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for (l = 0, len2 = ref1.length; l < len2; l++) {
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node = ref1[l];
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results1.push(this.doSync(node));
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}
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return results1;
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}).call(_this));
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}
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return results;
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};
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})(this)).observe(document.body, {
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childList: true,
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subtree: true
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});
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}
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};
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WOW.prototype.stop = function() {
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this.stopped = true;
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this.util().removeEvent(this.config.scrollContainer || window, 'scroll', this.scrollHandler);
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this.util().removeEvent(window, 'resize', this.scrollHandler);
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if (this.interval != null) {
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return clearInterval(this.interval);
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}
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};
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WOW.prototype.sync = function(element) {
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if (MutationObserver.notSupported) {
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return this.doSync(this.element);
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}
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};
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WOW.prototype.doSync = function(element) {
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var box, j, len, ref, results;
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if (element == null) {
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element = this.element;
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}
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if (element.nodeType !== 1) {
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return;
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}
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element = element.parentNode || element;
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ref = element.querySelectorAll("." + this.config.boxClass);
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results = [];
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for (j = 0, len = ref.length; j < len; j++) {
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box = ref[j];
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if (indexOf.call(this.all, box) < 0) {
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this.boxes.push(box);
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this.all.push(box);
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if (this.stopped || this.disabled()) {
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this.resetStyle();
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} else {
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this.applyStyle(box, true);
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}
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results.push(this.scrolled = true);
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} else {
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results.push(void 0);
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}
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}
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return results;
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};
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WOW.prototype.show = function(box) {
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this.applyStyle(box);
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box.className = box.className + " " + this.config.animateClass;
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if (this.config.callback != null) {
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this.config.callback(box);
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}
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this.util().emitEvent(box, this.wowEvent);
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this.util().addEvent(box, 'animationend', this.resetAnimation);
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this.util().addEvent(box, 'oanimationend', this.resetAnimation);
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this.util().addEvent(box, 'webkitAnimationEnd', this.resetAnimation);
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this.util().addEvent(box, 'MSAnimationEnd', this.resetAnimation);
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return box;
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};
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WOW.prototype.applyStyle = function(box, hidden) {
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var delay, duration, iteration;
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duration = box.getAttribute('data-wow-duration');
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delay = box.getAttribute('data-wow-delay');
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iteration = box.getAttribute('data-wow-iteration');
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return this.animate((function(_this) {
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return function() {
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return _this.customStyle(box, hidden, duration, delay, iteration);
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};
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})(this));
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};
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WOW.prototype.animate = (function() {
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if ('requestAnimationFrame' in window) {
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return function(callback) {
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return window.requestAnimationFrame(callback);
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};
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} else {
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return function(callback) {
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return callback();
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};
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}
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})();
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WOW.prototype.resetStyle = function() {
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var box, j, len, ref, results;
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ref = this.boxes;
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results = [];
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for (j = 0, len = ref.length; j < len; j++) {
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box = ref[j];
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results.push(box.style.visibility = 'visible');
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}
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return results;
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};
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WOW.prototype.resetAnimation = function(event) {
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var target;
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if (event.type.toLowerCase().indexOf('animationend') >= 0) {
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target = event.target || event.srcElement;
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return target.className = target.className.replace(this.config.animateClass, '').trim();
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}
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};
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WOW.prototype.customStyle = function(box, hidden, duration, delay, iteration) {
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if (hidden) {
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this.cacheAnimationName(box);
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}
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box.style.visibility = hidden ? 'hidden' : 'visible';
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if (duration) {
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this.vendorSet(box.style, {
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animationDuration: duration
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});
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}
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if (delay) {
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this.vendorSet(box.style, {
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animationDelay: delay
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});
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}
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if (iteration) {
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this.vendorSet(box.style, {
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animationIterationCount: iteration
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});
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}
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this.vendorSet(box.style, {
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animationName: hidden ? 'none' : this.cachedAnimationName(box)
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});
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return box;
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};
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WOW.prototype.vendors = ["moz", "webkit"];
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WOW.prototype.vendorSet = function(elem, properties) {
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var name, results, value, vendor;
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results = [];
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for (name in properties) {
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value = properties[name];
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elem["" + name] = value;
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results.push((function() {
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var j, len, ref, results1;
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ref = this.vendors;
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results1 = [];
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for (j = 0, len = ref.length; j < len; j++) {
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vendor = ref[j];
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results1.push(elem["" + vendor + (name.charAt(0).toUpperCase()) + (name.substr(1))] = value);
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}
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return results1;
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}).call(this));
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}
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return results;
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};
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WOW.prototype.vendorCSS = function(elem, property) {
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var j, len, ref, result, style, vendor;
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style = getComputedStyle(elem);
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result = style.getPropertyCSSValue(property);
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ref = this.vendors;
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for (j = 0, len = ref.length; j < len; j++) {
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vendor = ref[j];
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result = result || style.getPropertyCSSValue("-" + vendor + "-" + property);
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}
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return result;
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};
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WOW.prototype.animationName = function(box) {
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var animationName, error;
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try {
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animationName = this.vendorCSS(box, 'animation-name').cssText;
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} catch (error) {
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animationName = getComputedStyle(box).getPropertyValue('animation-name');
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}
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if (animationName === 'none') {
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return '';
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} else {
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return animationName;
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}
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};
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WOW.prototype.cacheAnimationName = function(box) {
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return this.animationNameCache.set(box, this.animationName(box));
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};
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WOW.prototype.cachedAnimationName = function(box) {
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return this.animationNameCache.get(box);
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};
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WOW.prototype.scrollHandler = function() {
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return this.scrolled = true;
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};
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WOW.prototype.scrollCallback = function() {
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var box;
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if (this.scrolled) {
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this.scrolled = false;
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this.boxes = (function() {
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var j, len, ref, results;
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ref = this.boxes;
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results = [];
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for (j = 0, len = ref.length; j < len; j++) {
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box = ref[j];
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if (!(box)) {
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continue;
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}
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if (this.isVisible(box)) {
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this.show(box);
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continue;
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}
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results.push(box);
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}
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return results;
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}).call(this);
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if (!(this.boxes.length || this.config.live)) {
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return this.stop();
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}
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}
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};
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WOW.prototype.offsetTop = function(element) {
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var top;
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while (element.offsetTop === void 0) {
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element = element.parentNode;
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}
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top = element.offsetTop;
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while (element = element.offsetParent) {
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top += element.offsetTop;
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}
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return top;
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};
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WOW.prototype.isVisible = function(box) {
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var bottom, offset, top, viewBottom, viewTop;
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offset = box.getAttribute('data-wow-offset') || this.config.offset;
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viewTop = (this.config.scrollContainer && this.config.scrollContainer.scrollTop) || window.pageYOffset;
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viewBottom = viewTop + Math.min(this.element.clientHeight, this.util().innerHeight()) - offset;
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top = this.offsetTop(box);
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bottom = top + box.clientHeight;
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return top <= viewBottom && bottom >= viewTop;
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};
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WOW.prototype.util = function() {
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return this._util != null ? this._util : this._util = new Util();
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};
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WOW.prototype.disabled = function() {
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return !this.config.mobile && this.util().isMobile(navigator.userAgent);
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};
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return WOW;
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})();
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}).call(this);
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