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@@ -0,0 +1,29 @@
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.box {
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width: 300px;
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height: 300px;
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margin: 0 20px 20px 0;
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border: 1px solid;
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display: inline-block;
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}
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.orange-tree {
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background: url('http://i.imgur.com/bwy74ok.jpg');
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background-size: cover;
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}
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.thunder-cloud {
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background: url('../../../test/img/thunder-cloud.jpg');
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background-size: contain;
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}
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.multi1 {
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background:
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url("http://i.imgur.com/ZAVN3.png"),
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url('http://i.imgur.com/6UdOxeB.png') bottom right,
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url(http://i.imgur.com/LkmcILl.jpg);
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background-size: cover;
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}
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.blue {
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background: #09F;
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}
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@@ -0,0 +1,51 @@
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<!doctype html>
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<html>
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width" />
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<title>background</title>
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<!-- put in separate folder so JS path is different from CSS path -->
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<link rel="stylesheet" href="css/background.css" >
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</head>
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<body>
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<h1>background</h1>
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<div class="box orange-tree"></div>
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<div class="box thunder-cloud"></div>
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<div class="box multi1"></div>
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<div class="box blue"></div>
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<script src="../../bower_components/ev-emitter/ev-emitter.js"></script>
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<script src="../../imagesloaded.js"></script>
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<script>
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var imgLoad0 = imagesLoaded( '.orange-tree', { background: true }, function() {
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console.log('orange tree bg images loaded', imgLoad0.images.length );
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});
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var imgLoad1 = imagesLoaded( '.thunder-cloud', { background: true }, function() {
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console.log('thunder cloud bg images loaded', imgLoad1.images.length);
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});
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var imgLoad2 = imagesLoaded( '.multi1', { background: true }, function() {
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console.log('multi1 bg images loaded', imgLoad2.images.length);
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});
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var imgLoad3 = imagesLoaded( '.box', { background: true }, function() {
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console.log('.box bg images loaded', imgLoad3.images.length);
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});
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imgLoad3.on('progress', function( instance, image, element ) {
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console.log( 'progress on .box', image.img.src, element.className );
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});
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</script>
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</body>
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</html>
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@@ -0,0 +1,89 @@
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<!doctype html>
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<html>
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width" />
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<title>progress</title>
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<style>
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#image-container img {
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max-height: 140px;
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}
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li {
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height: 140px;
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min-width: 100px;
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display: block;
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float: left;
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list-style: none;
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margin: 0 5px 5px 0;
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background-color: black;
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background-position: center center;
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background-repeat: no-repeat;
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}
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li img,
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#status {
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-webkit-transition: opacity 0.4s;
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-moz-transition: opacity 0.4s;
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-ms-transition: opacity 0.4s;
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transition: opacity 0.4s;
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}
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li.is-loading {
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background-color: black;
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background-image: url('http://desandro.github.io/imagesloaded/assets/loading.gif');
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}
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li.is-broken {
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background-image: url('http://desandro.github.io/imagesloaded/assets/broken.png');
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background-color: #be3730;
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width: 120px;
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}
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li.is-loading img,
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li.is-broken img {
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opacity: 0;
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}
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.buttons { margin-bottom: 1.0em; }
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button {
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font-size: 18px;
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padding: 0.4em 0.8em;
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font-family: sans-serif;
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}
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#status {
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opacity: 0;
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position: fixed;
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right: 20px;
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top: 20px;
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background: hsla( 0, 0%, 0%, 0.8);
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padding: 20px;
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border-radius: 10px;
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z-index: 2; /* over other stuff */
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}
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</style>
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</head>
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<body>
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<h1>progress</h1>
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<div class="buttons">
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<button id="add">Add images</button>
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<button id="reset">Reset</button>
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</div>
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<div id="status">
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<progress max="7" value="0"></progress>
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</div>
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<div id="image-container"></div>
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<script src="../../bower_components/ev-emitter/ev-emitter.js"></script>
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<script src="../../imagesloaded.js"></script>
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<script src="progress.js"></script>
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</body>
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</html>
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@@ -0,0 +1,111 @@
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/* jshint strict: false */
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var progressElem, statusElem;
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var supportsProgress;
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var loadedImageCount, imageCount;
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var container = document.querySelector('#image-container');
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statusElem = document.querySelector('#status');
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progressElem = document.querySelector('progress');
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supportsProgress = progressElem &&
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// IE does not support progress
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progressElem.toString().indexOf('Unknown') === -1;
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document.querySelector('#add').onclick = function() {
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// add new images
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var fragment = getItemsFragment();
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container.insertBefore( fragment, container.firstChild );
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// use ImagesLoaded
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var imgLoad = imagesLoaded( container );
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imgLoad.on( 'progress', onProgress );
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imgLoad.on( 'always', onAlways );
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// reset progress counter
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imageCount = imgLoad.images.length;
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resetProgress();
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updateProgress( 0 );
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};
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// reset container
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document.querySelector('#reset').onclick = function() {
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empty( container );
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};
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// ----- set text helper ----- //
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var docElem = document.documentElement;
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var textSetter = docElem.textContent !== undefined ? 'textContent' : 'innerText';
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function setText( elem, value ) {
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elem[ textSetter ] = value;
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}
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function empty( elem ) {
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while ( elem.firstChild ) {
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elem.removeChild( elem.firstChild );
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}
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}
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// ----- ----- //
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// return doc fragment with
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function getItemsFragment() {
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var fragment = document.createDocumentFragment();
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for ( var i = 0; i < 7; i++ ) {
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var item = getImageItem();
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fragment.appendChild( item );
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}
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return fragment;
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}
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// return an <li> with a <img> in it
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function getImageItem() {
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var item = document.createElement('li');
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item.className = 'is-loading';
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var img = document.createElement('img');
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var size = Math.random() * 3 + 1;
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var width = Math.random() * 110 + 100;
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width = Math.round( width * size );
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var height = Math.round( 140 * size );
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var rando = Math.ceil( Math.random() * 1000 );
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// 10% chance of broken image src
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// random parameter to prevent cached images
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img.src = rando < 100 ? '//foo/broken-' + rando + '.jpg' :
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// use picsum for great random images
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'https://picsum.photos/' + width + '/' + height + '/' + '?random';
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item.appendChild( img );
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return item;
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}
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// ----- ----- //
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function resetProgress() {
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statusElem.style.opacity = 1;
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loadedImageCount = 0;
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if ( supportsProgress ) {
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progressElem.setAttribute( 'max', imageCount );
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}
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}
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function updateProgress( value ) {
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if ( supportsProgress ) {
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progressElem.setAttribute( 'value', value );
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} else {
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// if you don't support progress elem
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setText( statusElem, value + ' / ' + imageCount );
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}
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}
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// triggered after each item is loaded
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function onProgress( imgLoad, image ) {
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// change class if the image is loaded or broken
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image.img.parentNode.className = image.isLoaded ? '' : 'is-broken';
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// update progress element
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loadedImageCount++;
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updateProgress( loadedImageCount );
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}
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// hide status when done
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function onAlways() {
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statusElem.style.opacity = 0;
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}
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