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Filename : images-loaded.js
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/*!
 * imagesLoaded PACKAGED v4.1.1
 * JavaScript is all like "You images are done yet or what?"
 * MIT License
 */

! function(t, e) {
    "function" == typeof define && define.amd ? define("ev-emitter/ev-emitter", e) : "object" == typeof module && module.exports ? module.exports = e() : t.EvEmitter = e()
}("undefined" != typeof window ? window : this, function() {
    function t() {}
    var e = t.prototype;
    return e.on = function(t, e) {
        if (t && e) {
            var i = this._events = this._events || {},
                n = i[t] = i[t] || [];
            return -1 == n.indexOf(e) && n.push(e), this
        }
    }, e.once = function(t, e) {
        if (t && e) {
            this.on(t, e);
            var i = this._onceEvents = this._onceEvents || {},
                n = i[t] = i[t] || {};
            return n[e] = !0, this
        }
    }, e.off = function(t, e) {
        var i = this._events && this._events[t];
        if (i && i.length) {
            var n = i.indexOf(e);
            return -1 != n && i.splice(n, 1), this
        }
    }, e.emitEvent = function(t, e) {
        var i = this._events && this._events[t];
        if (i && i.length) {
            var n = 0,
                o = i[n];
            e = e || [];
            for (var r = this._onceEvents && this._onceEvents[t]; o;) {
                var s = r && r[o];
                s && (this.off(t, o), delete r[o]), o.apply(this, e), n += s ? 0 : 1, o = i[n]
            }
            return this
        }
    }, t
}),
function(t, e) {
    "use strict";
    "function" == typeof define && define.amd ? define(["ev-emitter/ev-emitter"], function(i) {
        return e(t, i)
    }) : "object" == typeof module && module.exports ? module.exports = e(t, require("ev-emitter")) : t.imagesLoaded = e(t, t.EvEmitter)
}(window, function(t, e) {
    function i(t, e) {
        for (var i in e) t[i] = e[i];
        return t
    }

    function n(t) {
        var e = [];
        if (Array.isArray(t)) e = t;
        else if ("number" == typeof t.length)
            for (var i = 0; i < t.length; i++) e.push(t[i]);
        else e.push(t);
        return e
    }

    function o(t, e, r) {
        return this instanceof o ? ("string" == typeof t && (t = document.querySelectorAll(t)), this.elements = n(t), this.options = i({}, this.options), "function" == typeof e ? r = e : i(this.options, e), r && this.on("always", r), this.getImages(), h && (this.jqDeferred = new h.Deferred), void setTimeout(function() {
            this.check()
        }.bind(this))) : new o(t, e, r)
    }

    function r(t) {
        this.img = t
    }

    function s(t, e) {
        this.url = t, this.element = e, this.img = new Image
    }
    var h = t.jQuery,
        a = t.console;
    o.prototype = Object.create(e.prototype), o.prototype.options = {}, o.prototype.getImages = function() {
        this.images = [], this.elements.forEach(this.addElementImages, this)
    }, o.prototype.addElementImages = function(t) {
        "IMG" == t.nodeName && this.addImage(t), this.options.background === !0 && this.addElementBackgroundImages(t);
        var e = t.nodeType;
        if (e && d[e]) {
            for (var i = t.querySelectorAll("img"), n = 0; n < i.length; n++) {
                var o = i[n];
                this.addImage(o)
            }
            if ("string" == typeof this.options.background) {
                var r = t.querySelectorAll(this.options.background);
                for (n = 0; n < r.length; n++) {
                    var s = r[n];
                    this.addElementBackgroundImages(s)
                }
            }
        }
    };
    var d = {
        1: !0,
        9: !0,
        11: !0
    };
    return o.prototype.addElementBackgroundImages = function(t) {
        var e = getComputedStyle(t);
        if (e)
            for (var i = /url\((['"])?(.*?)\1\)/gi, n = i.exec(e.backgroundImage); null !== n;) {
                var o = n && n[2];
                o && this.addBackground(o, t), n = i.exec(e.backgroundImage)
            }
    }, o.prototype.addImage = function(t) {
        var e = new r(t);
        this.images.push(e)
    }, o.prototype.addBackground = function(t, e) {
        var i = new s(t, e);
        this.images.push(i)
    }, o.prototype.check = function() {
        function t(t, i, n) {
            setTimeout(function() {
                e.progress(t, i, n)
            })
        }
        var e = this;
        return this.progressedCount = 0, this.hasAnyBroken = !1, this.images.length ? void this.images.forEach(function(e) {
            e.once("progress", t), e.check()
        }) : void this.complete()
    }, o.prototype.progress = function(t, e, i) {
        this.progressedCount++, this.hasAnyBroken = this.hasAnyBroken || !t.isLoaded, this.emitEvent("progress", [this, t, e]), this.jqDeferred && this.jqDeferred.notify && this.jqDeferred.notify(this, t), this.progressedCount == this.images.length && this.complete(), this.options.debug && a && a.log("progress: " + i, t, e)
    }, o.prototype.complete = function() {
        var t = this.hasAnyBroken ? "fail" : "done";
        if (this.isComplete = !0, this.emitEvent(t, [this]), this.emitEvent("always", [this]), this.jqDeferred) {
            var e = this.hasAnyBroken ? "reject" : "resolve";
            this.jqDeferred[e](this)
        }
    }, r.prototype = Object.create(e.prototype), r.prototype.check = function() {
        var t = this.getIsImageComplete();
        return t ? void this.confirm(0 !== this.img.naturalWidth, "naturalWidth") : (this.proxyImage = new Image, this.proxyImage.addEventListener("load", this), this.proxyImage.addEventListener("error", this), this.img.addEventListener("load", this), this.img.addEventListener("error", this), void(this.proxyImage.src = this.img.src))
    }, r.prototype.getIsImageComplete = function() {
        return this.img.complete && void 0 !== this.img.naturalWidth
    }, r.prototype.confirm = function(t, e) {
        this.isLoaded = t, this.emitEvent("progress", [this, this.img, e])
    }, r.prototype.handleEvent = function(t) {
        var e = "on" + t.type;
        this[e] && this[e](t)
    }, r.prototype.onload = function() {
        this.confirm(!0, "onload"), this.unbindEvents()
    }, r.prototype.onerror = function() {
        this.confirm(!1, "onerror"), this.unbindEvents()
    }, r.prototype.unbindEvents = function() {
        this.proxyImage.removeEventListener("load", this), this.proxyImage.removeEventListener("error", this), this.img.removeEventListener("load", this), this.img.removeEventListener("error", this)
    }, s.prototype = Object.create(r.prototype), s.prototype.check = function() {
        this.img.addEventListener("load", this), this.img.addEventListener("error", this), this.img.src = this.url;
        var t = this.getIsImageComplete();
        t && (this.confirm(0 !== this.img.naturalWidth, "naturalWidth"), this.unbindEvents())
    }, s.prototype.unbindEvents = function() {
        this.img.removeEventListener("load", this), this.img.removeEventListener("error", this)
    }, s.prototype.confirm = function(t, e) {
        this.isLoaded = t, this.emitEvent("progress", [this, this.element, e])
    }, o.makeJQueryPlugin = function(e) {
        e = e || t.jQuery, e && (h = e, h.fn.imagesLoaded = function(t, e) {
            var i = new o(this, t, e);
            return i.jqDeferred.promise(h(this))
        })
    }, o.makeJQueryPlugin(), o
});