X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/0494b8d9b9bb03ab6c22b34dae81261e3cd7e3e6..7a654f8d43fdb43d78b63d90528bed6e86b608cc:/src/ext-core/src/util/TaskMgr.js diff --git a/src/ext-core/src/util/TaskMgr.js b/src/ext-core/src/util/TaskMgr.js deleted file mode 100644 index 942d8617..00000000 --- a/src/ext-core/src/util/TaskMgr.js +++ /dev/null @@ -1,180 +0,0 @@ -/*! - * Ext JS Library 3.3.1 - * Copyright(c) 2006-2010 Sencha Inc. - * licensing@sencha.com - * http://www.sencha.com/license - */ -/** - * @class Ext.util.TaskRunner - * Provides the ability to execute one or more arbitrary tasks in a multithreaded - * manner. Generally, you can use the singleton {@link Ext.TaskMgr} instead, but - * if needed, you can create separate instances of TaskRunner. Any number of - * separate tasks can be started at any time and will run independently of each - * other. Example usage: - *
-// Start a simple clock task that updates a div once per second
-var updateClock = function(){
- Ext.fly('clock').update(new Date().format('g:i:s A'));
-}
-var task = {
- run: updateClock,
- interval: 1000 //1 second
-}
-var runner = new Ext.util.TaskRunner();
-runner.start(task);
-
-// equivalent using TaskMgr
-Ext.TaskMgr.start({
- run: updateClock,
- interval: 1000
-});
-
- *
- * See the {@link #start} method for details about how to configure a task object.
- * Also see {@link Ext.util.DelayedTask}. - * - * @constructor - * @param {Number} interval (optional) The minimum precision in milliseconds supported by this TaskRunner instance - * (defaults to 10) - */ -Ext.util.TaskRunner = function(interval){ - interval = interval || 10; - var tasks = [], - removeQueue = [], - id = 0, - running = false, - - // private - stopThread = function(){ - running = false; - clearInterval(id); - id = 0; - }, - - // private - startThread = function(){ - if(!running){ - running = true; - id = setInterval(runTasks, interval); - } - }, - - // private - removeTask = function(t){ - removeQueue.push(t); - if(t.onStop){ - t.onStop.apply(t.scope || t); - } - }, - - // private - runTasks = function(){ - var rqLen = removeQueue.length, - now = new Date().getTime(); - - if(rqLen > 0){ - for(var i = 0; i < rqLen; i++){ - tasks.remove(removeQueue[i]); - } - removeQueue = []; - if(tasks.length < 1){ - stopThread(); - return; - } - } - for(var i = 0, t, itime, rt, len = tasks.length; i < len; ++i){ - t = tasks[i]; - itime = now - t.taskRunTime; - if(t.interval <= itime){ - rt = t.run.apply(t.scope || t, t.args || [++t.taskRunCount]); - t.taskRunTime = now; - if(rt === false || t.taskRunCount === t.repeat){ - removeTask(t); - return; - } - } - if(t.duration && t.duration <= (now - t.taskStartTime)){ - removeTask(t); - } - } - }; - - /** - * Starts a new task. - * @method start - * @param {Object} taskA config object that supports the following properties:
run
: FunctionThe function to execute each time the task is invoked. The
- * function will be called at each interval and passed the args
argument if specified, and the
- * current invocation count if not.
If a particular scope (this
reference) is required, be sure to specify it using the scope
argument.
Return false
from this function to terminate the task.
interval
: Numberargs
: Arrayrun
. If not specified, the current invocation count is passed.scope
: Objectrun
function. Defaults to the task config object.duration
: Numberrepeat
: NumberBefore each invocation, Ext injects the property taskRunCount
into the task object so
- * that calculations based on the repeat count can be performed.
-// Start a simple clock task that updates a div once per second
-var task = {
- run: function(){
- Ext.fly('clock').update(new Date().format('g:i:s A'));
- },
- interval: 1000 //1 second
-}
-Ext.TaskMgr.start(task);
-
- * See the {@link #start} method for details about how to configure a task object.
- * @singleton - */ -Ext.TaskMgr = new Ext.util.TaskRunner(); \ No newline at end of file