mirror of
https://github.com/wahyd4/cdnjs.git
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Merge pull request #785 from melvinchien/master
Add jquery.lazyload.js 1.8.3
This commit is contained in:
Ryan Kirkman
@@ -0,0 +1,227 @@
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/*
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* Lazy Load - jQuery plugin for lazy loading images
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*
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* Copyright (c) 2007-2012 Mika Tuupola
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*
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* Licensed under the MIT license:
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* http://www.opensource.org/licenses/mit-license.php
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*
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* Project home:
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* http://www.appelsiini.net/projects/lazyload
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*
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* Version: 1.8.3
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*
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*/
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(function($, window, document, undefined) {
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var $window = $(window);
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$.fn.lazyload = function(options) {
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var elements = this;
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var $container;
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var settings = {
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threshold : 0,
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failure_limit : 0,
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event : "scroll",
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effect : "show",
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container : window,
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data_attribute : "original",
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skip_invisible : true,
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appear : null,
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load : null
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};
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function update() {
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var counter = 0;
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elements.each(function() {
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var $this = $(this);
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if (settings.skip_invisible && !$this.is(":visible")) {
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return;
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}
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if ($.abovethetop(this, settings) ||
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$.leftofbegin(this, settings)) {
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/* Nothing. */
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} else if (!$.belowthefold(this, settings) &&
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!$.rightoffold(this, settings)) {
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$this.trigger("appear");
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/* if we found an image we'll load, reset the counter */
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counter = 0;
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} else {
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if (++counter > settings.failure_limit) {
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return false;
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}
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}
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});
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}
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if(options) {
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/* Maintain BC for a couple of versions. */
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if (undefined !== options.failurelimit) {
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options.failure_limit = options.failurelimit;
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delete options.failurelimit;
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}
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if (undefined !== options.effectspeed) {
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options.effect_speed = options.effectspeed;
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delete options.effectspeed;
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}
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$.extend(settings, options);
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}
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/* Cache container as jQuery as object. */
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$container = (settings.container === undefined ||
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settings.container === window) ? $window : $(settings.container);
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/* Fire one scroll event per scroll. Not one scroll event per image. */
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if (0 === settings.event.indexOf("scroll")) {
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$container.bind(settings.event, function(event) {
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return update();
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});
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}
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this.each(function() {
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var self = this;
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var $self = $(self);
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self.loaded = false;
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/* When appear is triggered load original image. */
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$self.one("appear", function() {
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if (!this.loaded) {
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if (settings.appear) {
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var elements_left = elements.length;
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settings.appear.call(self, elements_left, settings);
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}
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$("<img />")
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.bind("load", function() {
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$self
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.hide()
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.attr("src", $self.data(settings.data_attribute))
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[settings.effect](settings.effect_speed);
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self.loaded = true;
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/* Remove image from array so it is not looped next time. */
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var temp = $.grep(elements, function(element) {
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return !element.loaded;
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});
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elements = $(temp);
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if (settings.load) {
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var elements_left = elements.length;
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settings.load.call(self, elements_left, settings);
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}
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})
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.attr("src", $self.data(settings.data_attribute));
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}
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});
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/* When wanted event is triggered load original image */
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/* by triggering appear. */
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if (0 !== settings.event.indexOf("scroll")) {
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$self.bind(settings.event, function(event) {
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if (!self.loaded) {
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$self.trigger("appear");
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}
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});
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}
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});
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/* Check if something appears when window is resized. */
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$window.bind("resize", function(event) {
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update();
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});
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/* With IOS5 force loading images when navigating with back button. */
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/* Non optimal workaround. */
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if ((/iphone|ipod|ipad.*os 5/gi).test(navigator.appVersion)) {
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$window.bind("pageshow", function(event) {
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if (event.originalEvent.persisted) {
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elements.each(function() {
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$(this).trigger("appear");
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});
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}
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});
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}
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/* Force initial check if images should appear. */
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$(window).load(function() {
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update();
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});
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return this;
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};
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/* Convenience methods in jQuery namespace. */
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/* Use as $.belowthefold(element, {threshold : 100, container : window}) */
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$.belowthefold = function(element, settings) {
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var fold;
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if (settings.container === undefined || settings.container === window) {
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fold = $window.height() + $window.scrollTop();
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} else {
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fold = $(settings.container).offset().top + $(settings.container).height();
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}
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return fold <= $(element).offset().top - settings.threshold;
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};
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$.rightoffold = function(element, settings) {
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var fold;
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if (settings.container === undefined || settings.container === window) {
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fold = $window.width() + $window.scrollLeft();
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} else {
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fold = $(settings.container).offset().left + $(settings.container).width();
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}
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return fold <= $(element).offset().left - settings.threshold;
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};
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$.abovethetop = function(element, settings) {
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var fold;
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if (settings.container === undefined || settings.container === window) {
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fold = $window.scrollTop();
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} else {
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fold = $(settings.container).offset().top;
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}
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return fold >= $(element).offset().top + settings.threshold + $(element).height();
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};
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$.leftofbegin = function(element, settings) {
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var fold;
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if (settings.container === undefined || settings.container === window) {
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fold = $window.scrollLeft();
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} else {
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fold = $(settings.container).offset().left;
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}
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return fold >= $(element).offset().left + settings.threshold + $(element).width();
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};
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$.inviewport = function(element, settings) {
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return !$.rightoffold(element, settings) && !$.leftofbegin(element, settings) &&
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!$.belowthefold(element, settings) && !$.abovethetop(element, settings);
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};
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/* Custom selectors for your convenience. */
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/* Use as $("img:below-the-fold").something() or */
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/* $("img").filter(":below-the-fold").something() which is faster */
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$.extend($.expr[':'], {
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"below-the-fold" : function(a) { return $.belowthefold(a, {threshold : 0}); },
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"above-the-top" : function(a) { return !$.belowthefold(a, {threshold : 0}); },
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"right-of-screen": function(a) { return $.rightoffold(a, {threshold : 0}); },
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"left-of-screen" : function(a) { return !$.rightoffold(a, {threshold : 0}); },
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"in-viewport" : function(a) { return $.inviewport(a, {threshold : 0}); },
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/* Maintain BC for couple of versions. */
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"above-the-fold" : function(a) { return !$.belowthefold(a, {threshold : 0}); },
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"right-of-fold" : function(a) { return $.rightoffold(a, {threshold : 0}); },
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"left-of-fold" : function(a) { return !$.rightoffold(a, {threshold : 0}); }
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});
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})(jQuery, window, document);
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@@ -0,0 +1,15 @@
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/*
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* Lazy Load - jQuery plugin for lazy loading images
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*
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* Copyright (c) 2007-2012 Mika Tuupola
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*
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* Licensed under the MIT license:
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* http://www.opensource.org/licenses/mit-license.php
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*
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* Project home:
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* http://www.appelsiini.net/projects/lazyload
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*
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* Version: 1.8.3
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*
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*/
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(function(a,b,c,d){var e=a(b);a.fn.lazyload=function(c){function i(){var b=0;f.each(function(){var c=a(this);if(h.skip_invisible&&!c.is(":visible"))return;if(!a.abovethetop(this,h)&&!a.leftofbegin(this,h))if(!a.belowthefold(this,h)&&!a.rightoffold(this,h))c.trigger("appear"),b=0;else if(++b>h.failure_limit)return!1})}var f=this,g,h={threshold:0,failure_limit:0,event:"scroll",effect:"show",container:b,data_attribute:"original",skip_invisible:!0,appear:null,load:null};return c&&(d!==c.failurelimit&&(c.failure_limit=c.failurelimit,delete c.failurelimit),d!==c.effectspeed&&(c.effect_speed=c.effectspeed,delete c.effectspeed),a.extend(h,c)),g=h.container===d||h.container===b?e:a(h.container),0===h.event.indexOf("scroll")&&g.bind(h.event,function(a){return i()}),this.each(function(){var b=this,c=a(b);b.loaded=!1,c.one("appear",function(){if(!this.loaded){if(h.appear){var d=f.length;h.appear.call(b,d,h)}a("<img />").bind("load",function(){c.hide().attr("src",c.data(h.data_attribute))[h.effect](h.effect_speed),b.loaded=!0;var d=a.grep(f,function(a){return!a.loaded});f=a(d);if(h.load){var e=f.length;h.load.call(b,e,h)}}).attr("src",c.data(h.data_attribute))}}),0!==h.event.indexOf("scroll")&&c.bind(h.event,function(a){b.loaded||c.trigger("appear")})}),e.bind("resize",function(a){i()}),/iphone|ipod|ipad.*os 5/gi.test(navigator.appVersion)&&e.bind("pageshow",function(b){b.originalEvent.persisted&&f.each(function(){a(this).trigger("appear")})}),a(b).load(function(){i()}),this},a.belowthefold=function(c,f){var g;return f.container===d||f.container===b?g=e.height()+e.scrollTop():g=a(f.container).offset().top+a(f.container).height(),g<=a(c).offset().top-f.threshold},a.rightoffold=function(c,f){var g;return f.container===d||f.container===b?g=e.width()+e.scrollLeft():g=a(f.container).offset().left+a(f.container).width(),g<=a(c).offset().left-f.threshold},a.abovethetop=function(c,f){var g;return f.container===d||f.container===b?g=e.scrollTop():g=a(f.container).offset().top,g>=a(c).offset().top+f.threshold+a(c).height()},a.leftofbegin=function(c,f){var g;return f.container===d||f.container===b?g=e.scrollLeft():g=a(f.container).offset().left,g>=a(c).offset().left+f.threshold+a(c).width()},a.inviewport=function(b,c){return!a.rightoffold(b,c)&&!a.leftofbegin(b,c)&&!a.belowthefold(b,c)&&!a.abovethetop(b,c)},a.extend(a.expr[":"],{"below-the-fold":function(b){return a.belowthefold(b,{threshold:0})},"above-the-top":function(b){return!a.belowthefold(b,{threshold:0})},"right-of-screen":function(b){return a.rightoffold(b,{threshold:0})},"left-of-screen":function(b){return!a.rightoffold(b,{threshold:0})},"in-viewport":function(b){return a.inviewport(b,{threshold:0})},"above-the-fold":function(b){return!a.belowthefold(b,{threshold:0})},"right-of-fold":function(b){return a.rightoffold(b,{threshold:0})},"left-of-fold":function(b){return!a.rightoffold(b,{threshold:0})}})})(jQuery,window,document)
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@@ -0,0 +1,27 @@
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{
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"name": "jquery.lazyload",
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"filename": "jquery.lazyload.min.js",
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"version": "1.8.3",
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"description": "Lazy Load delays loading of images in long web pages. Images outside of viewport wont be loaded before user scrolls to them.",
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"homepage": "http://www.appelsiini.net/projects/lazyload",
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"keywords": [
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"lazyload",
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"jquery",
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"image",
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"images",
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"loading",
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"delay"
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],
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"maintainers": [
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{
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"name": "Mika Tuupola",
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"web": "http://github.com/tuupola"
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}
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],
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"repositories": [
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{
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"type": "git",
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"url": "https://github.com/tuupola/jquery_lazyload.git"
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}
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]
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}
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