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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,180 @@ | ||
| /*! | ||
| * Lazy Load - JavaScript plugin for lazy loading images | ||
| * | ||
| * Copyright (c) 2007-2019 Mika Tuupola | ||
| * | ||
| * Licensed under the MIT license: | ||
| * http://www.opensource.org/licenses/mit-license.php | ||
| * | ||
| * Project home: | ||
| * https://appelsiini.net/projects/lazyload | ||
| * | ||
| * Version: 2.0.0-rc.2 | ||
| * | ||
| */ | ||
|
|
||
| (function (root, factory) { | ||
| if (typeof exports === "object") { | ||
| module.exports = factory(root); | ||
| } else if (typeof define === "function" && define.amd) { | ||
| define([], factory); | ||
| } else { | ||
| root.LazyLoad = factory(root); | ||
| } | ||
| }) (typeof global !== "undefined" ? global : this.window || this.global, function (root) { | ||
|
|
||
| "use strict"; | ||
|
|
||
| if (typeof define === "function" && define.amd){ | ||
| root = window; | ||
| } | ||
|
|
||
| const defaults = { | ||
| src: "data-src", | ||
| srcset: "data-srcset", | ||
| selector: ".lazyload", | ||
| root: null, | ||
| rootMargin: "0px", | ||
| threshold: 0 | ||
| }; | ||
|
|
||
| /** | ||
| * Merge two or more objects. Returns a new object. | ||
| * @private | ||
| * @param {Boolean} deep If true, do a deep (or recursive) merge [optional] | ||
| * @param {Object} objects The objects to merge together | ||
| * @returns {Object} Merged values of defaults and options | ||
| */ | ||
| const extend = function () { | ||
|
|
||
| let extended = {}; | ||
| let deep = false; | ||
| let i = 0; | ||
| let length = arguments.length; | ||
|
|
||
| /* Check if a deep merge */ | ||
| if (Object.prototype.toString.call(arguments[0]) === "[object Boolean]") { | ||
| deep = arguments[0]; | ||
| i++; | ||
| } | ||
|
|
||
| /* Merge the object into the extended object */ | ||
| let merge = function (obj) { | ||
| for (let prop in obj) { | ||
| if (Object.prototype.hasOwnProperty.call(obj, prop)) { | ||
| /* If deep merge and property is an object, merge properties */ | ||
| if (deep && Object.prototype.toString.call(obj[prop]) === "[object Object]") { | ||
| extended[prop] = extend(true, extended[prop], obj[prop]); | ||
| } else { | ||
| extended[prop] = obj[prop]; | ||
| } | ||
| } | ||
| } | ||
| }; | ||
|
|
||
| /* Loop through each object and conduct a merge */ | ||
| for (; i < length; i++) { | ||
| let obj = arguments[i]; | ||
| merge(obj); | ||
| } | ||
|
|
||
| return extended; | ||
| }; | ||
|
|
||
| function LazyLoad(images, options) { | ||
| this.settings = extend(defaults, options || {}); | ||
| this.images = images || document.querySelectorAll(this.settings.selector); | ||
| this.observer = null; | ||
| this.init(); | ||
| } | ||
|
|
||
| LazyLoad.prototype = { | ||
| init: function() { | ||
|
|
||
| /* Without observers load everything and bail out early. */ | ||
| if (!root.IntersectionObserver) { | ||
| this.loadImages(); | ||
| return; | ||
| } | ||
|
|
||
| let self = this; | ||
| let observerConfig = { | ||
| root: this.settings.root, | ||
| rootMargin: this.settings.rootMargin, | ||
| threshold: [this.settings.threshold] | ||
| }; | ||
|
|
||
| this.observer = new IntersectionObserver(function(entries) { | ||
| Array.prototype.forEach.call(entries, function (entry) { | ||
| if (entry.isIntersecting) { | ||
| self.observer.unobserve(entry.target); | ||
| let src = entry.target.getAttribute(self.settings.src); | ||
| let srcset = entry.target.getAttribute(self.settings.srcset); | ||
| if ("img" === entry.target.tagName.toLowerCase()) { | ||
| if (src) { | ||
| entry.target.src = src; | ||
| } | ||
| if (srcset) { | ||
| entry.target.srcset = srcset; | ||
| } | ||
| } else { | ||
| entry.target.style.backgroundImage = "url(" + src + ")"; | ||
| } | ||
| } | ||
| }); | ||
| }, observerConfig); | ||
|
|
||
| Array.prototype.forEach.call(this.images, function (image) { | ||
| self.observer.observe(image); | ||
| }); | ||
| }, | ||
|
|
||
| loadAndDestroy: function () { | ||
| if (!this.settings) { return; } | ||
| this.loadImages(); | ||
| this.destroy(); | ||
| }, | ||
|
|
||
| loadImages: function () { | ||
| if (!this.settings) { return; } | ||
|
|
||
| let self = this; | ||
| Array.prototype.forEach.call(this.images, function (image) { | ||
| let src = image.getAttribute(self.settings.src); | ||
| let srcset = image.getAttribute(self.settings.srcset); | ||
| if ("img" === image.tagName.toLowerCase()) { | ||
| if (src) { | ||
| image.src = src; | ||
| } | ||
| if (srcset) { | ||
| image.srcset = srcset; | ||
| } | ||
| } else { | ||
| image.style.backgroundImage = "url('" + src + "')"; | ||
| } | ||
| }); | ||
| }, | ||
|
|
||
| destroy: function () { | ||
| if (!this.settings) { return; } | ||
| this.observer.disconnect(); | ||
| this.settings = null; | ||
| } | ||
| }; | ||
|
|
||
| root.lazyload = function(images, options) { | ||
| return new LazyLoad(images, options); | ||
| }; | ||
|
|
||
| if (root.jQuery) { | ||
| const $ = root.jQuery; | ||
| $.fn.lazyload = function (options) { | ||
| options = options || {}; | ||
| options.attribute = options.attribute || "data-src"; | ||
| new LazyLoad($.makeArray(this), options); | ||
| return this; | ||
| }; | ||
| } | ||
|
|
||
| return LazyLoad; | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -7,7 +7,7 @@ | |
| <title>PP制造计划 开源表情包</title> | ||
| </head> | ||
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| <script src="https://cdn.bootcdn.net/ajax/libs/jquery/1.10.0/jquery.min.js"></script> | ||
| <script src="./cdn/jquery.min.js"></script> | ||
| <script src="https://cdn.jsdelivr.net/npm/[email protected]/lazyload.js"></script> | ||
| <script src="./cdn/clipboard.min.js"></script> | ||
| <!-- <script data-ad-client="ca-pub-4504000699134547" async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> --> | ||
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