jquery.asyncqueue.js
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/*
* This file is part of the jquery plugin "asyncQueue".
*
* (c) Sebastien Roch <roch.sebastien@gmail.com>
* @author (parallel) Dmitry Farafonov
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
(function($){
$.AsyncQueue = function() {
var that = this,
queue = [],
completeFunc,
failureFunc,
paused = false,
lastCallbackData,
_run,
_complete,
inQueue = 0,
defaultTimeOut = 10;
_run = function() {
var f = queue.shift();
if (f) {
inQueue++;
setTimeout(function(){
f.fn.apply(that, [that]);
if (!f.isParallel)
if (paused === false) {
_run();
}
inQueue --;
if (inQueue == 0 && queue.length == 0)
_complete();
}, f.timeOut);
if (f.isParallel)
if (paused === false) {
_run();
}
}
};
_complete = function(){
if (completeFunc)
completeFunc.apply(that, [that]);
};
this.onComplete = function(func) {
completeFunc = func;
};
this.onFailure = function(func) {
failureFunc = func;
};
this.add = function(func) {
// TODO: add callback for queue[i] complete
var obj = arguments[0];
if (obj && Object.prototype.toString.call(obj) === "[object Array]") {
var fn = arguments[1];
var timeOut = (typeof(arguments[2]) != "undefined")? arguments[2] : defaultTimeOut;
if (typeof(fn) == "function") {
for(var i = 0; i < obj.length; i++) {
var f = function(objx){
queue.push({isParallel: true, fn: function(){fn.apply(that, [that, objx]);}, timeOut: timeOut});
}(obj[i])
}
}
} else {
var fn = arguments[0];
var timeOut = (typeof(arguments[1]) != "undefined")? arguments[2] : defaultTimeOut;
queue.push({isParallel: false, fn: func, timeOut: timeOut});
}
return this;
};
this.addParallel = function(func, timeOut) {
// TODO: add callback for queue[i] complete
queue.push({isParallel: true, fn: func, timeOut: timeOut});
return this;
};
this.storeData = function(dataObject) {
lastCallbackData = dataObject;
return this;
};
this.lastCallbackData = function () {
return lastCallbackData;
};
this.run = function() {
paused = false;
_run();
};
this.pause = function () {
paused = true;
return this;
};
this.failure = function() {
paused = true;
if (failureFunc) {
var args = [that];
for(i = 0; i < arguments.length; i++) {
args.push(arguments[i]);
}
failureFunc.apply(that, args);
}
};
this.size = function(){
return queue.length;
};
return this;
}
})(jQuery);