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