137 lines
3.3 KiB
JavaScript
137 lines
3.3 KiB
JavaScript
/**
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* ownCloud
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*
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* @author Juan Pablo Villafañez Ramos <jvillafanez@owncloud.com>
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* @author Jesus Macias Portela <jesus@owncloud.com>
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* @copyright (C) 2014 ownCloud, Inc.
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*
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* This file is licensed under the Affero General Public License version 3
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* or later.
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*
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* See the COPYING-README file.
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*
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*/
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(function(){
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/**
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* Launch several functions at thee same time. The number of functions
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* running at the same time is controlled by the queueWindow param
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*
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* The function list come in the following format:
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*
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* var flist = [
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* {
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* funcName: function () {
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* var d = $.Deferred();
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* setTimeout(function(){d.resolve();}, 1000);
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* return d;
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* }
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* },
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* {
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* funcName: $.get,
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* funcArgs: [
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* OC.filePath('files_external', 'ajax', 'connectivityCheck.php'),
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* {},
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* function () {
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* console.log('titoooo');
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* }
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* ]
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* },
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* {
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* funcName: $.get,
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* funcArgs: [
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* OC.filePath('files_external', 'ajax', 'connectivityCheck.php')
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* ],
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* done: function () {
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* console.log('yuupi');
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* },
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* always: function () {
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* console.log('always done');
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* }
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* }
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*];
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*
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* functions MUST implement the deferred interface
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*
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* @param functionList list of functions that the queue will run
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* (check example above for the expected format)
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* @param queueWindow specify the number of functions that will
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* be executed at the same time
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*/
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var RollingQueue = function (functionList, queueWindow, callback) {
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this.queueWindow = queueWindow || 1;
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this.functionList = functionList;
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this.callback = callback;
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this.counter = 0;
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this.runQueue = function() {
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this.callbackCalled = false;
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this.deferredsList = [];
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if (!$.isArray(this.functionList)) {
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throw "functionList must be an array";
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}
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for (var i = 0; i < this.queueWindow; i++) {
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this.launchNext();
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}
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};
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this.hasNext = function() {
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return (this.counter in this.functionList);
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};
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this.launchNext = function() {
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var currentCounter = this.counter++;
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if (currentCounter in this.functionList) {
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var funcData = this.functionList[currentCounter];
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if ($.isFunction(funcData.funcName)) {
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var defObj = funcData.funcName.apply(funcData.funcName, funcData.funcArgs);
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this.deferredsList.push(defObj);
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if ($.isFunction(funcData.done)) {
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defObj.done(funcData.done);
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}
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if ($.isFunction(funcData.fail)) {
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defObj.fail(funcData.fail);
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}
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if ($.isFunction(funcData.always)) {
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defObj.always(funcData.always);
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}
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if (this.hasNext()) {
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var self = this;
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defObj.always(function(){
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_.defer($.proxy(function(){
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self.launchNext();
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}, self));
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});
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} else {
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if (!this.callbackCalled) {
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this.callbackCalled = true;
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if ($.isFunction(this.callback)) {
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$.when.apply($, this.deferredsList)
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.always($.proxy(function(){
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this.callback();
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}, this)
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);
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}
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}
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}
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return defObj;
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}
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}
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return false;
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};
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};
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if (!OCA.External) {
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OCA.External = {};
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}
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if (!OCA.External.StatusManager) {
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OCA.External.StatusManager = {};
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}
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OCA.External.StatusManager.RollingQueue = RollingQueue;
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})();
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