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Initial Revision.
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zoltan-dulac committed Jan 16, 2012
0 parents commit b2cab2e
Showing 1 changed file with 57 additions and 0 deletions.
57 changes: 57 additions & 0 deletions imageCache.js
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/**
* imageCache.js - image caching framework.
* Zoltan Hawryluk - http://www.useragentman.com/
* MIT License.
*/

var imageCache = new function () {
var me = this;

var cache = [];
var root = document.location.href.split('/');

root.pop();
root = root.join('/') + '/';

me.push = function (src, loadEvent) {

if (!src.match(/^http/)) {
src = root + src;
}

var item = new Image();


if (cache[src] && loadEvent) {
loadEvent(src);
} else {
if (loadEvent) {
item.onload = loadEvent;
item.onerror = loadEvent;
}
cache[src]=item;
}

item.src = src;
}

me.pushArray = function (array, imageLoadEvent, imagesLoadEvent) {
var numLoaded = 0;
var arrayLength = array.length;
for (var i=0; i<arrayLength; i++) {
me.push(array[i], function (e) {
if (imageLoadEvent) {
imageLoadEvent(e);
}
numLoaded++;
if (numLoaded == arrayLength) {
setTimeout(function () {
imagesLoadEvent(e);
}, 1)

}
})
}
}

}

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