Alarms

From WebOS101

Example code that uses the alarm service to run a synchronization after some period of time. Note that you can set the delay period to fractions of a minute for testing purposes...

See also the section on Multi-Stage Applications for info on responding to the alarm service in your AppAssistant's handleLaunch method.

Note: If using the 'in' parameter for the alarm service the minimum (as of 1.4.5) is 5 minutes. If you use the 'at' parameter, you can set whatever time you want (in theory).

this.setSyncTimer = function(delayInMinutes){
		Mojo.Log.info("Delay: ", delayInMinutes);
		var d, mo, yr, hrs, mins, secs, myDateString, dStr, myDate;
		Mojo.Log.info("Starting Sync");
		dashInfo = {
			title: MyAPP.appName + " Starting Sync!",
			message: "Swipe to Cancel",
			count: 1
		};
 
		//For testing purposes ONLY, set delay to 0.5 minutes!
		//delayInMinutes = 0.5;
 
		d = new Date();
		d.setTime(d.getTime() + delayInMinutes * 60 * 1000);
		mo = d.getUTCMonth() + 1;
		if (mo < 10) {
			mo = '0' + mo;
		}
		myDate = d.getUTCDate();
		if (myDate < 10) {
			myDate = '0' + myDate;
		}
		yr = d.getUTCFullYear();
		//get hours according to GMT
		hrs = d.getUTCHours();
		if (hrs < 10) {
			hrs = '0' + hrs;
		}
		mins = d.getUTCMinutes();
		if (mins < 10) {
			mins = '0' + mins;
		}
		secs = d.getUTCSeconds();
		if (secs < 10) {
			secs = '0' + secs;
		}
		myDateString = mo + "/" + date + "/" + yr + " " + hrs + ":" + mins + ":" + secs;
		Mojo.Log.info("Date String", myDateString);
 
		dStr = Mojo.Format.formatDate(d, 'medium');
		Mojo.Log.info("Time is", dStr);
 
 
		syncTimerId = new Mojo.Service.Request("palm://com.palm.power/timeout", {
			method: 'set',
			parameters: {
				key: MyAPP.appId + '.sync',
				//'in': 	'00:05:00',
				at: myDateString,
				wakeup: true,
				uri: 'palm://com.palm.applicationManager/open',
				params: {
					'id': MyAPP.appId,
					'params': {
						action: 'sync',
					}
				}
			},
			onSuccess: function(){
				Mojo.Log.info("Success in Setting up Sync!!! at", dStr);
			}.bind(this)
		});
	};
 
	this.clearSyncTimer = function(timerId){
		if (timerId) {
			new Mojo.Service.Request("palm://com.palm.power/timeout", {
				method: "clear",
				parameters: {
					"key": MyAPP.appId + '.sync'
				},
				onSuccess: function(){
					Mojo.Log.info("Cleared Sync Timer!");
				}
			});
		}
	};
}