(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); wow = new WOW( { animateClass: "animated", offset: 100, callback: function(box) { console.log("WOW: animating ") } } ); wow.init(); document.getElementById("moar").onclick = function() { var section = document.createElement("section"); section.className = "section--purple wow fadeInDown"; this.parentNode.insertBefore(section, this); };