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File Content: `wow.js`

(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.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, _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() {
            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
        };

        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 {
                this.util().addEvent(document, 'DOMContentLoaded', this.start);
            }
            return this.finished = [];
        };

        WOW.prototype.start = function() {
            var box, _i, _len, _ref;
            this.stopped = false;
            this.boxes = (function() {
                var _i, _len, _ref, _results;
                _ref = this.element.querySelectorAll("." + this.config.boxClass);
                _results = [];
                for (_i = 0, _len = _ref.length; _i < _len; _i++) {
                    box = _ref[_i];
                    _results.push(box);
                }
                return _results;
            }).call(this);
            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);
                    }
                    this.util().addEvent(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 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;
            this.util().removeEvent(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, _i, _len, _ref, _results;
            if (!this.stopped) {
                if (element == null) {
                    element = this.element;
                }
                if (element.nodeType !== 1) {
                    return;
                }
                element = element.parentNode || element;
                _ref = element.querySelectorAll("." + 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 = 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 = 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 + 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);
File Content: wow.js

File Content: `wow.js`
