vanilla-lazyload - npm Package Compare versions

Comparing version 6.2.0 to 6.2.1

__test__/lazyload.test.js

@@ -0,0 +0,0 @@ const LazyLoad = require('../src/lazyLoad');

bower.json

@@ -0,0 +0,0 @@ {

CONTRIBUTING.md

@@ -0,0 +0,0 @@ Thank you for taking the time to contribute!

demos/perf/jquery.lazyload.min.js

 /*! Lazy Load 1.9.3 - MIT license - Copyright 2010-2013 Mika Tuupola */
 !function(a,b,c,d){var e=a(b);a.fn.lazyload=function(f){function g(){var b=0;i.each(function(){var c=a(this);if(!j.skip_invisible||c.is(":visible"))if(a.abovethetop(this,j)||a.leftofbegin(this,j));else if(a.belowthefold(this,j)||a.rightoffold(this,j)){if(++b>j.failure_limit)return!1}else c.trigger("appear"),b=0})}var h,i=this,j={threshold:0,failure_limit:0,event:"scroll",effect:"show",container:b,data_attribute:"original",skip_invisible:!0,appear:null,load:null,placeholder:"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC"};return f&&(d!==f.failurelimit&&(f.failure_limit=f.failurelimit,delete f.failurelimit),d!==f.effectspeed&&(f.effect_speed=f.effectspeed,delete f.effectspeed),a.extend(j,f)),h=j.container===d||j.container===b?e:a(j.container),0===j.event.indexOf("scroll")&&h.bind(j.event,function(){return g()}),this.each(function(){var b=this,c=a(b);b.loaded=!1,(c.attr("src")===d||c.attr("src")===!1)&&c.is("img")&&c.attr("src",j.placeholder),c.one("appear",function(){if(!this.loaded){if(j.appear){var d=i.length;j.appear.call(b,d,j)}a("<img />").bind("load",function(){var d=c.attr("data-"+j.data_attribute);c.hide(),c.is("img")?c.attr("src",d):c.css("background-image","url('"+d+"')"),c[j.effect](j.effect_speed),b.loaded=!0;var e=a.grep(i,function(a){return!a.loaded});if(i=a(e),j.load){var f=i.length;j.load.call(b,f,j)}}).attr("src",c.attr("data-"+j.data_attribute))}}),0!==j.event.indexOf("scroll")&&c.bind(j.event,function(){b.loaded||c.trigger("appear")})}),e.bind("resize",function(){g()}),/(?:iphone|ipod|ipad).*os 5/gi.test(navigator.appVersion)&&e.bind("pageshow",function(b){b.originalEvent&&b.originalEvent.persisted&&i.each(function(){a(this).trigger("appear")})}),a(c).ready(function(){g()}),this},a.belowthefold=function(c,f){var g;return g=f.container===d||f.container===b?(b.innerHeight?b.innerHeight:e.height())+e.scrollTop():a(f.container).offset().top+a(f.container).height(),g<=a(c).offset().top-f.threshold},a.rightoffold=function(c,f){var g;return g=f.container===d||f.container===b?e.width()+e.scrollLeft():a(f.container).offset().left+a(f.container).width(),g<=a(c).offset().left-f.threshold},a.abovethetop=function(c,f){var g;return g=f.container===d||f.container===b?e.scrollTop():a(f.container).offset().top,g>=a(c).offset().top+f.threshold+a(c).height()},a.leftofbegin=function(c,f){var g;return g=f.container===d||f.container===b?e.scrollLeft():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);

dist/lazyload.transpiled.js

@@ -265,24 +265,28 @@ 'use strict';
             value: function handleScroll() {
+                var _this = this;
+
                 var throttle = this._settings.throttle;
 
                 if (throttle !== 0) {
-                    var getTime = function getTime() {
-                        new Date().getTime();
-                    };
-                    var now = getTime();
-                    var remainingTime = throttle - (now - this._previousLoopTime);
-                    if (remainingTime <= 0 || remainingTime > throttle) {
-                        if (this._loopTimeout) {
-                            clearTimeout(this._loopTimeout);
-                            this._loopTimeout = null;
+                    (function () {
+                        var getTime = function getTime() {
+                            new Date().getTime();
+                        };
+                        var now = getTime();
+                        var remainingTime = throttle - (now - _this._previousLoopTime);
+                        if (remainingTime <= 0 || remainingTime > throttle) {
+                            if (_this._loopTimeout) {
+                                clearTimeout(_this._loopTimeout);
+                                _this._loopTimeout = null;
+                            }
+                            _this._previousLoopTime = now;
+                            _this._loopThroughElements();
+                        } else if (!_this._loopTimeout) {
+                            _this._loopTimeout = setTimeout(function () {
+                                this._previousLoopTime = getTime();
+                                this._loopTimeout = null;
+                                this._loopThroughElements();
+                            }.bind(_this), remainingTime);
                         }
-                        this._previousLoopTime = now;
-                        this._loopThroughElements();
-                    } else if (!this._loopTimeout) {
-                        this._loopTimeout = setTimeout(function () {
-                            this._previousLoopTime = getTime();
-                            this._loopTimeout = null;
-                            this._loopThroughElements();
-                        }.bind(this), remainingTime);
-                    }
+                    })();
                 } else {
@@ -289,0 +293,0 @@ this._loopThroughElements();

dist/lazyload.transpiled.min.js

@@ -1,2 +0,2 @@
-"use strict";function _classCallCheck(a,b){if(!(a instanceof b))throw new TypeError("Cannot call a class as a function")}var _extends=Object.assign||function(a){for(var b=1;b<arguments.length;b++){var c=arguments[b];for(var d in c)Object.prototype.hasOwnProperty.call(c,d)&&(a[d]=c[d])}return a},_createClass=function(){function a(a,b){for(var c=0;c<b.length;c++){var d=b[c];d.enumerable=d.enumerable||!1,d.configurable=!0,"value"in d&&(d.writable=!0),Object.defineProperty(a,d.key,d)}}return function(b,c,d){return c&&a(b.prototype,c),d&&a(b,d),b}}(),_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(a){return typeof a}:function(a){return a&&"function"==typeof Symbol&&a.constructor===Symbol&&a!==Symbol.prototype?"symbol":typeof a};!function(a,b){"function"==typeof define&&define.amd?define([],b):"object"===("undefined"==typeof exports?"undefined":_typeof(exports))?module.exports=b():a.LazyLoad=b()}(window,function(){var a=!("onscroll"in window)||/glebot/.test(navigator.userAgent),b=function(a){return a.getBoundingClientRect().top+window.pageYOffset-a.ownerDocument.documentElement.clientTop},c=function(a,c,d){return(c===window?window.innerHeight+window.pageYOffset:b(c)+c.offsetHeight)<=b(a)-d},d=function(a){return a.getBoundingClientRect().left+window.pageXOffset-a.ownerDocument.documentElement.clientLeft},e=function(a,b,c){var e=window.innerWidth;return(b===window?e+window.pageXOffset:d(b)+e)<=d(a)-c},f=function(a,c,d){return(c===window?window.pageYOffset:b(c))>=b(a)+d+a.offsetHeight},g=function(a,b,c){return(b===window?window.pageXOffset:d(b))>=d(a)+c+a.offsetWidth},h=function(a,b,d){return!(c(a,b,d)||f(a,b,d)||e(a,b,d)||g(a,b,d))},i=function(a,b){a&&a(b)},j=function(a){var b=new l(a),c=new CustomEvent("LazyLoad::Initialized",{detail:{instance:b}});window.dispatchEvent(c)},k={elements_selector:"img",container:window,threshold:300,throttle:150,data_src:"original",data_srcset:"original-set",class_loading:"loading",class_loaded:"loaded",class_error:"error",skip_invisible:!0,callback_load:null,callback_error:null,callback_set:null,callback_processed:null},l=function(){function b(a){_classCallCheck(this,b),this._settings=_extends({},k,a),this._queryOriginNode=this._settings.container===window?document:this._settings.container,this._previousLoopTime=0,this._loopTimeout=null,this._boundHandleScroll=this.handleScroll.bind(this),window.addEventListener("resize",this._boundHandleScroll),this.update()}return _createClass(b,[{key:"_setSourcesForPicture",value:function(a,b){var c=a.parentElement;if("PICTURE"===c.tagName)for(var d=0;d<c.children.length;d++){var e=c.children[d];if("SOURCE"===e.tagName){var f=e.getAttribute("data-"+b);f&&e.setAttribute("srcset",f)}}}},{key:"_setSources",value:function(a,b,c){var d=a.tagName,e=a.getAttribute("data-"+c);if("IMG"===d){this._setSourcesForPicture(a,b);var f=a.getAttribute("data-"+b);return f&&a.setAttribute("srcset",f),void(e&&a.setAttribute("src",e))}if("IFRAME"===d)return void(e&&a.setAttribute("src",e));e&&(a.style.backgroundImage="url("+e+")")}},{key:"_showOnAppear",value:function(a){var b=this._settings,c=function c(){b&&(a.removeEventListener("load",d),a.removeEventListener("error",c),a.classList.remove(b.class_loading),a.classList.add(b.class_error),i(b.callback_error,a))},d=function d(){b&&(a.classList.remove(b.class_loading),a.classList.add(b.class_loaded),a.removeEventListener("load",d),a.removeEventListener("error",c),i(b.callback_load,a))};"IMG"!==a.tagName&&"IFRAME"!==a.tagName||(a.addEventListener("load",d),a.addEventListener("error",c),a.classList.add(b.class_loading)),this._setSources(a,b.data_srcset,b.data_src),i(b.callback_set,a)}},{key:"_loopThroughElements",value:function(){var b=this._settings,c=this._elements,d=c?c.length:0,e=void 0,f=[];for(e=0;e<d;e++){var g=c[e];b.skip_invisible&&null===g.offsetParent||(a||h(g,b.container,b.threshold))&&(this._showOnAppear(g),f.push(e),g.wasProcessed=!0)}for(;f.length>0;)c.splice(f.pop(),1),i(b.callback_processed,c.length);0===d&&this._stopScrollHandler()}},{key:"_purgeElements",value:function(){var a=this._elements,b=a.length,c=void 0,d=[];for(c=0;c<b;c++){a[c].wasProcessed&&d.push(c)}for(;d.length>0;)a.splice(d.pop(),1)}},{key:"_startScrollHandler",value:function(){this._isHandlingScroll||(this._isHandlingScroll=!0,this._settings.container.addEventListener("scroll",this._boundHandleScroll))}},{key:"_stopScrollHandler",value:function(){this._isHandlingScroll&&(this._isHandlingScroll=!1,this._settings.container.removeEventListener("scroll",this._boundHandleScroll))}},{key:"handleScroll",value:function(){var a=this._settings.throttle;if(0!==a){var b=function(){(new Date).getTime()},c=b(),d=a-(c-this._previousLoopTime);d<=0||d>a?(this._loopTimeout&&(clearTimeout(this._loopTimeout),this._loopTimeout=null),this._previousLoopTime=c,this._loopThroughElements()):this._loopTimeout||(this._loopTimeout=setTimeout(function(){this._previousLoopTime=b(),this._loopTimeout=null,this._loopThroughElements()}.bind(this),d))}else this._loopThroughElements()}},{key:"update",value:function(){this._elements=Array.prototype.slice.call(this._queryOriginNode.querySelectorAll(this._settings.elements_selector)),this._purgeElements(),this._loopThroughElements(),this._startScrollHandler()}},{key:"destroy",value:function(){window.removeEventListener("resize",this._boundHandleScroll),this._loopTimeout&&(clearTimeout(this._loopTimeout),this._loopTimeout=null),this._stopScrollHandler(),this._elements=null,this._queryOriginNode=null,this._settings=null}}]),b}(),m=window.lazyLoadOptions;return m&&function(a){var b=a.length;if(b)for(var c=0;c<b;c++)j(a[c]);else j(a)}(m),l});
+"use strict";function _classCallCheck(a,b){if(!(a instanceof b))throw new TypeError("Cannot call a class as a function")}var _extends=Object.assign||function(a){for(var b=1;b<arguments.length;b++){var c=arguments[b];for(var d in c)Object.prototype.hasOwnProperty.call(c,d)&&(a[d]=c[d])}return a},_createClass=function(){function a(a,b){for(var c=0;c<b.length;c++){var d=b[c];d.enumerable=d.enumerable||!1,d.configurable=!0,"value"in d&&(d.writable=!0),Object.defineProperty(a,d.key,d)}}return function(b,c,d){return c&&a(b.prototype,c),d&&a(b,d),b}}(),_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(a){return typeof a}:function(a){return a&&"function"==typeof Symbol&&a.constructor===Symbol&&a!==Symbol.prototype?"symbol":typeof a};!function(a,b){"function"==typeof define&&define.amd?define([],b):"object"===("undefined"==typeof exports?"undefined":_typeof(exports))?module.exports=b():a.LazyLoad=b()}(window,function(){var a=!("onscroll"in window)||/glebot/.test(navigator.userAgent),b=function(a){return a.getBoundingClientRect().top+window.pageYOffset-a.ownerDocument.documentElement.clientTop},c=function(a,c,d){return(c===window?window.innerHeight+window.pageYOffset:b(c)+c.offsetHeight)<=b(a)-d},d=function(a){return a.getBoundingClientRect().left+window.pageXOffset-a.ownerDocument.documentElement.clientLeft},e=function(a,b,c){var e=window.innerWidth;return(b===window?e+window.pageXOffset:d(b)+e)<=d(a)-c},f=function(a,c,d){return(c===window?window.pageYOffset:b(c))>=b(a)+d+a.offsetHeight},g=function(a,b,c){return(b===window?window.pageXOffset:d(b))>=d(a)+c+a.offsetWidth},h=function(a,b,d){return!(c(a,b,d)||f(a,b,d)||e(a,b,d)||g(a,b,d))},i=function(a,b){a&&a(b)},j=function(a){var b=new l(a),c=new CustomEvent("LazyLoad::Initialized",{detail:{instance:b}});window.dispatchEvent(c)},k={elements_selector:"img",container:window,threshold:300,throttle:150,data_src:"original",data_srcset:"original-set",class_loading:"loading",class_loaded:"loaded",class_error:"error",skip_invisible:!0,callback_load:null,callback_error:null,callback_set:null,callback_processed:null},l=function(){function b(a){_classCallCheck(this,b),this._settings=_extends({},k,a),this._queryOriginNode=this._settings.container===window?document:this._settings.container,this._previousLoopTime=0,this._loopTimeout=null,this._boundHandleScroll=this.handleScroll.bind(this),window.addEventListener("resize",this._boundHandleScroll),this.update()}return _createClass(b,[{key:"_setSourcesForPicture",value:function(a,b){var c=a.parentElement;if("PICTURE"===c.tagName)for(var d=0;d<c.children.length;d++){var e=c.children[d];if("SOURCE"===e.tagName){var f=e.getAttribute("data-"+b);f&&e.setAttribute("srcset",f)}}}},{key:"_setSources",value:function(a,b,c){var d=a.tagName,e=a.getAttribute("data-"+c);if("IMG"===d){this._setSourcesForPicture(a,b);var f=a.getAttribute("data-"+b);return f&&a.setAttribute("srcset",f),void(e&&a.setAttribute("src",e))}if("IFRAME"===d)return void(e&&a.setAttribute("src",e));e&&(a.style.backgroundImage="url("+e+")")}},{key:"_showOnAppear",value:function(a){var b=this._settings,c=function c(){b&&(a.removeEventListener("load",d),a.removeEventListener("error",c),a.classList.remove(b.class_loading),a.classList.add(b.class_error),i(b.callback_error,a))},d=function d(){b&&(a.classList.remove(b.class_loading),a.classList.add(b.class_loaded),a.removeEventListener("load",d),a.removeEventListener("error",c),i(b.callback_load,a))};"IMG"!==a.tagName&&"IFRAME"!==a.tagName||(a.addEventListener("load",d),a.addEventListener("error",c),a.classList.add(b.class_loading)),this._setSources(a,b.data_srcset,b.data_src),i(b.callback_set,a)}},{key:"_loopThroughElements",value:function(){var b=this._settings,c=this._elements,d=c?c.length:0,e=void 0,f=[];for(e=0;e<d;e++){var g=c[e];b.skip_invisible&&null===g.offsetParent||(a||h(g,b.container,b.threshold))&&(this._showOnAppear(g),f.push(e),g.wasProcessed=!0)}for(;f.length>0;)c.splice(f.pop(),1),i(b.callback_processed,c.length);0===d&&this._stopScrollHandler()}},{key:"_purgeElements",value:function(){var a=this._elements,b=a.length,c=void 0,d=[];for(c=0;c<b;c++){a[c].wasProcessed&&d.push(c)}for(;d.length>0;)a.splice(d.pop(),1)}},{key:"_startScrollHandler",value:function(){this._isHandlingScroll||(this._isHandlingScroll=!0,this._settings.container.addEventListener("scroll",this._boundHandleScroll))}},{key:"_stopScrollHandler",value:function(){this._isHandlingScroll&&(this._isHandlingScroll=!1,this._settings.container.removeEventListener("scroll",this._boundHandleScroll))}},{key:"handleScroll",value:function(){var a=this,b=this._settings.throttle;0!==b?function(){var c=function(){(new Date).getTime()},d=c(),e=b-(d-a._previousLoopTime);e<=0||e>b?(a._loopTimeout&&(clearTimeout(a._loopTimeout),a._loopTimeout=null),a._previousLoopTime=d,a._loopThroughElements()):a._loopTimeout||(a._loopTimeout=setTimeout(function(){this._previousLoopTime=c(),this._loopTimeout=null,this._loopThroughElements()}.bind(a),e))}():this._loopThroughElements()}},{key:"update",value:function(){this._elements=Array.prototype.slice.call(this._queryOriginNode.querySelectorAll(this._settings.elements_selector)),this._purgeElements(),this._loopThroughElements(),this._startScrollHandler()}},{key:"destroy",value:function(){window.removeEventListener("resize",this._boundHandleScroll),this._loopTimeout&&(clearTimeout(this._loopTimeout),this._loopTimeout=null),this._stopScrollHandler(),this._elements=null,this._queryOriginNode=null,this._settings=null}}]),b}(),m=window.lazyLoadOptions;return m&&function(a){var b=a.length;if(b)for(var c=0;c<b;c++)j(a[c]);else j(a)}(m),l});
 //# sourceMappingURL=lazyload.transpiled.min.js.map

Gruntfile.js

@@ -0,0 +0,0 @@ module.exports = function (grunt) {

license.md

@@ -0,0 +0,0 @@ The MIT License (MIT)

package.json

 {
   "name": "vanilla-lazyload",
-  "version": "6.2.0",
+  "version": "6.2.1",
   "description": "A fast, lightweight script to load images as they enter the viewport. SEO friendly, it supports responsive images (both srcset + sizes and picture) and progressive JPEG",
@@ -5,0 +5,0 @@ "main": "dist/lazyload.transpiled.min.js",

README.md

@@ -84,11 +84,21 @@ # LazyLoad (aka Vanilla LazyLoad)
 
-Include the following scripts in your HTML page.
+Include the following scripts **at the end of** your HTML page, before the `</body>` tag.
 
 ```html
-<script>
-window.lazyLoadOptions = {/* your settings here, or an empty object, or true */};
-</script>
+<script>window.lazyLoadOptions = {/* your settings or array of settings */};</script>
 <script async src="../src/lazyload.js"></script>
 ```
 
+LazyLoad is then downloaded and automatically **initialized right after** with the options you passed in `window.lazyLoadOptions`.
+
+Please note that if you put the script at the beginning of your HTML page, LazyLoad will probably initialized before the DOM ready event. In that case, you need to get the instance and use the `update` method on it. This will make it check the DOM again.
+
+To get an auto-initialized instance of LazyLoad:
+
+```js
+window.addEventListener('LazyLoad::Initialized', function (e) {
+    lazyLoadInstance = e.detail.instance;
+}, false);
+```
+
 #### HTML - `script` tag
@@ -95,0 +105,0 @@

src/lazyload.js

@@ -0,0 +0,0 @@ (function (root, factory) {

todo.md

@@ -0,0 +0,0 @@ TODO

typings/lazyload.d.ts

@@ -10,2 +10,3 @@ interface ILazyLoadOptions {
     class_loaded?: string;
+    class_error?: string;
     skip_invisible?: boolean;
@@ -15,2 +16,3 @@ show_while_loading?: boolean;
     callback_load?: (elt:HTMLImageElement) => void;
+    callback_error?: (elt:HTMLImageElement) => void;
     callback_processed?: (elts:HTMLImageElement[]) => void;
@@ -17,0 +19,0 @@ placeholder?: string;

No alert changes

Improved metrics

Lines of code

971

0.52%

Number of lines in readme file

328

3.14%

Worsened metrics

Total package byte prevSize

919538

-0.62%

No dependency changes