(function() {
var MutationObserver, Util, WeakMap,
__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 custom) {
value = custom[key];
if (value != null) {
defaults[key] = value;
}
}
return defaults;
};
Util.prototype.isMobile = function(agent) {
return /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(agent);
};
return Util;
})();
WeakMap = this.WeakMap || this.MozWeakMap || (WeakMap = (function() {
function WeakMap() {
this.keys = [];
this.values = [];
}
WeakMap.prototype.get = function(key) {
var i, item, _i, _len, _ref;
_ref = this.keys;
for (i = _i = 0, _len = _ref.length; _i < _len; i = ++_i) {
item = _ref[i];
if (item === key) {
return this.values[i];
}
}
};
WeakMap.prototype.set = function(key, value) {
var i, item, _i, _len, _ref;
_ref = this.keys;
for (i = _i = 0, _len = _ref.length; _i < _len; i = ++_i) {
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() {
console.warn('MutationObserver is not supported by your browser.');
console.warn('WOW.js cannot detect dom mutations, please call .sync() after loading new content.');
}
MutationObserver.notSupported = true;
MutationObserver.prototype.observe = function() {};
return MutationObserver;
})());
this.WOW = (function() {
WOW.prototype.defaults = {
boxClass: 'wow',
animateClass: 'animated',
offset: 0,
mobile: true,
live: true
};
function WOW(options) {
if (options == null) {
options = {};
}
this.scrollCallback = __bind(this.scrollCallback, this);
this.scrollHandler = __bind(this.scrollHandler, this);
this.start = __bind(this.start, this);
this.scrolled = true;
this.config = this.util().extend(options, this.defaults);
this.animationNameCache = new WeakMap();
}
WOW.prototype.init = function() {
var _ref;
this.element = window.document.documentElement;
if ((_ref = document.readyState) === "interactive" || _ref === "complete") {
this.start();
} else {
document.addEventListener('DOMContentLoaded', this.start);
}
return this.finished = [];
};
WOW.prototype.start = function() {
var box, _i, _len, _ref;
this.stopped = false;
this.boxes = this.element.getElementsByClassName(this.config.boxClass);
this.all = (function() {
var _i, _len, _ref, _results;
_ref = this.boxes;
_results = [];
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
box = _ref[_i];
_results.push(box);
}
return _results;
}).call(this);
if (this.boxes.length) {
if (this.disabled()) {
this.resetStyle();
} else {
_ref = this.boxes;
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
box = _ref[_i];
this.applyStyle(box, true);
}
window.addEventListener('scroll', this.scrollHandler, false);
window.addEventListener('resize', this.scrollHandler, false);
this.interval = setInterval(this.scrollCallback, 50);
}
}
if (this.config.live) {
return new MutationObserver((function(_this) {
return function(records) {
var node, record, _j, _len1, _results;
_results = [];
for (_j = 0, _len1 = records.length; _j < _len1; _j++) {
record = records[_j];
_results.push((function() {
var _k, _len2, _ref1, _results1;
_ref1 = record.addedNodes || [];
_results1 = [];
for (_k = 0, _len2 = _ref1.length; _k < _len2; _k++) {
node = _ref1[_k];
_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;
window.removeEventListener('scroll', this.scrollHandler, false);
window.removeEventListener('resize', this.scrollHandler, false);
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, _i, _len, _ref, _results;
if (!this.stopped) {
element || (element = this.element);
element = element.parentNode || element;
_ref = element.getElementsByClassName(this.config.boxClass);
_results = [];
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
box = _ref[_i];
if (__indexOf.call(this.all, box) < 0) {
this.applyStyle(box, true);
this.boxes.push(box);
this.all.push(box);
_results.push(this.scrolled = true);
} else {
_results.push(void 0);
}
}
return _results;
}
};
WOW.prototype.show = function(box) {
this.applyStyle(box);
return box.className = "" + box.className + " " + this.config.animateClass;
};
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, _i, _len, _ref, _results;
_ref = this.boxes;
_results = [];
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
box = _ref[_i];
_results.push(box.setAttribute('style', 'visibility: visible;'));
}
return _results;
};
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, value, vendor, _results;
_results = [];
for (name in properties) {
value = properties[name];
elem["" + name] = value;
_results.push((function() {
var _i, _len, _ref, _results1;
_ref = this.vendors;
_results1 = [];
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
vendor = _ref[_i];
_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 result, style, vendor, _i, _len, _ref;
style = window.getComputedStyle(elem);
result = style.getPropertyCSSValue(property);
_ref = this.vendors;
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
vendor = _ref[_i];
result = result || style.getPropertyCSSValue("-" + vendor + "-" + property);
}
return result;
};
WOW.prototype.animationName = function(box) {
var animationName;
try {
animationName = this.vendorCSS(box, 'animation-name').cssText;
} catch (_error) {
animationName = window.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 _i, _len, _ref, _results;
_ref = this.boxes;
_results = [];
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
box = _ref[_i];
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 = window.pageYOffset;
viewBottom = viewTop + this.element.clientHeight - offset;
top = this.offsetTop(box);
bottom = top + box.clientHeight;
return top <= viewBottom && bottom >= viewTop;
};
WOW.prototype.util = function() {
return this._util || (this._util = new Util());
};
WOW.prototype.disabled = function() {
return !this.config.mobile && this.util().isMobile(navigator.userAgent);
};
return WOW;
})();
}).call(this);