first commit

WebRoot/diagram-viewer/js/jquery/jquery.asyncqueue.js

@@ -0,0 +1,125 @@
+/*
+* 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);