CrossBrowdy - Examples

Device

Battery

This is an example managing battery:

index.html:

<!DOCTYPE html>
<html>
	<head>
		<meta http-equiv="content-type" content="text/html; charset=utf-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no" />
		<title>Device: Battery - Example</title>
		<!-- Loads the needed CSS files: -->
		<link rel="stylesheet" type="text/css" href="main.css" />
		<!-- Loads CrossBrowdy.js (main file): -->
		<script src="CrossBrowdy/CrossBrowdy.js" type="text/javascript" language="javascript"></script><!-- "type" and "language" parameters for legacy clients. -->
		<!-- Loads the other needed script files: -->
		<script src="main.js" type="text/javascript" language="javascript"></script>
	</head>
	<body>
		Battery Status API support: <span id="battery_api"></span><br />
		Battery Status API object: <span id="battery_api_object">No data</span><br />
		Level: <span id="battery_level">Unknown</span><br />
		Charging: <span id="battery_charging">Unknown</span><br />
		Charging time: <span id="battery_charging_time">Unknown</span><br />
		Discharging time: <span id="battery_discharging_time">Unknown</span><br />
		Penultimate event: <span id="battery_penultimate_event">No data</span><br />
		Last event: <span id="battery_last_event">No data</span><br />
		<br />
		Cordova's Battery Status plugin - Penultimate event: <span id="cordova_battery_penultimate_event">No data</span><br />
		Cordova's Battery Status plugin - Last event: <span id="cordova_battery_last_event">No data</span>
		<br />
		<!-- The "CB_console" element will be used automatically in the case that the client does not support console: -->
		<div id="CB_console" style="visibility:hidden; overflow:scroll;">
			<span style="font-weight:bold;">Console:</span><br />
		</div>
		<div id="crossbrowdy_info"><a href="/guides#examples" target="_blank">CrossBrowdy.com</a> example</div>
	</body>
</html>

main.css:

body { background-color:#aaddee; word-wrap:break-word; }
#crossbrowdy_info { position:fixed; bottom:2px; right:2px; }
#crossbrowdy_info a { color:#00aadd; }
#crossbrowdy_info a:hover { color:#0033aa; }
span { color:#aa0000; }

main.js:

CB_init(main); //It will call the "main" function when ready.


//This function will be called when CrossBrowdy is ready:
function main()
{
	//Battery management through the Battery Status API or compatible ones:
	if (CB_Device.Battery.isSupported())
	{
		CB_console("The battery management is supported through the Battery Status API or compatible ones.");
		CB_Elements.insertContentById("battery_api", "Yes");

		//Shows the object which contains information about the battery status:
		showBatteryInformation();

		//Checks whether the battery is charging or not:
		CB_Device.Battery.isCharging
		(
			function(isCharging)
			{
				if (isCharging) { CB_console("The battery is charging"); CB_Elements.insertContentById("battery_charging", "Yes"); }
				else { CB_console("The battery is not charging"); CB_Elements.insertContentById("battery_charging", "No"); }
			}
		);

		//Shows the battery charging level:
		CB_Device.Battery.getLevel(function(level) { CB_console("Battery level: " + level); CB_Elements.insertContentById("battery_level", level); });

		//Shows the battery charging time:
		CB_Device.Battery.getChargingTime(function(chargingTime) { CB_console("Battery charging time: " + chargingTime); CB_Elements.insertContentById("battery_charging_time", chargingTime); });

		//Shows the battery discharging time:
		CB_Device.Battery.getDischargingTime(function(dischargingTime) { CB_console("Battery discharging time: " + dischargingTime); CB_Elements.insertContentById("battery_discharging_time", dischargingTime); });

		//Managing battery events (the first parameter received, 'batteryObject', can be used to get the battery information):
		CB_Device.Battery.onChargingChange
		(
			function(batteryObject, eventName, e)
			{
				showBatteryEventsInformation("Charging status changed (probably charger was plugged/unplugged)!");
				CB_Elements.insertContentById("battery_charging", batteryObject.charging ? "Yes" : "No");
			}
		);
		CB_Device.Battery.onLevelChange
		(
			function(batteryObject, eventName, e) { showBatteryEventsInformation("Level changed! Level: " + batteryObject.level); CB_Elements.insertContentById("battery_level", batteryObject.level); }
		);
		var updateChargingDischargingTime = function(batteryObject)
		{
			CB_Elements.insertContentById("battery_charging_time", batteryObject.chargingTime);
			CB_Elements.insertContentById("battery_discharging_time", batteryObject.dischargingTime);
		}
		CB_Device.Battery.onChargingTimeChange(function(batteryObject, eventName, e) { showBatteryEventsInformation("Charging time changed!"); updateChargingDischargingTime(batteryObject); });
		CB_Device.Battery.onDischargingTimeChange(function(batteryObject, eventName, e) { showBatteryEventsInformation("Discharging time changed!"); updateChargingDischargingTime(batteryObject); });
	}
	else
	{
		CB_console("The battery management is not supported through the Battery Status API or compatible ones.");
		CB_Elements.insertContentById("battery_api", "No");
	}
	
	
	//Battery management through the Apache Cordova's Battery Status plugin:
	CB_Device.Battery.cordova_onChange
	(
		function(cordova_batteryObject)
		{
			if (cordova_batteryObject.isPlugged) { showCordovaBatteryEventsInformation("Battery status changed! The battery is charging (charger plugged)."); }
			else { showCordovaBatteryEventsInformation("Battery status changed! The battery is not charging (charger not plugged)."); }
		}
	);
	CB_Device.Battery.cordova_onLow
	(
		function(cordova_batteryObject) { showCordovaBatteryEventsInformation("Battery level is low! Level: " + cordova_batteryObject.level); }
	);
	CB_Device.Battery.cordova_onCritical
	(
		function(cordova_batteryObject) { showCordovaBatteryEventsInformation("Battery level is critical! Level: " + cordova_batteryObject.level); }
	);
}


//Shows battery info:
var currentBatteryObject = null;
var lastOutput = "";
var batteryObjectUpdatedTimes = 1;
function showBatteryInformation()
{
	if (!currentBatteryObject) { CB_Elements.insertContentById("battery_api_object", "No data"); }
	else
	{
		var output = "{ ";
		output += "level: " + currentBatteryObject.level + ", ";
		output += "charging: " + currentBatteryObject.charging + ", ";
		output += "chargingTime: " + currentBatteryObject.chargingTime + ", ";
		output += "dischargingTime: " + currentBatteryObject.dischargingTime;
		output += " }";
		if (output !== lastOutput)
		{
			CB_console("Battery Status API object got: ");
			CB_console(output);
			CB_Elements.insertContentById("battery_api_object", output + " [batteryObjectUpdatedTimes=" + (batteryObjectUpdatedTimes++) + "]");
			lastOutput = output;
		}
	}
	
	//Gets the object which contains information about the battery status:	
	CB_Device.Battery.get(function(batteryObject) { currentBatteryObject = batteryObject; setTimeout(showBatteryInformation, 1); });
}


//Shows battery events information:
function showBatteryEventsInformation(message)
{
	//Updates battery events information:
	CB_Elements.insertContentById("battery_penultimate_event", CB_Elements.id("battery_last_event").innerHTML);
	CB_Elements.insertContentById("battery_last_event", message);
	CB_console(message);
}


//Shows Apache Cordova's Battery Status plugin battery events information:
function showCordovaBatteryEventsInformation(message)
{
	//Updates Apache Cordova's Battery Status plugin battery events information:
	CB_Elements.insertContentById("cordova_battery_penultimate_event", CB_Elements.id("cordova_battery_last_event").innerHTML);
	CB_Elements.insertContentById("cordova_battery_last_event", message);
	CB_console(message);
}

Try this example

You can check the Guides & Tutorials category as well as the API documentation in the case you need more information.

Go back to Guides & Tutorials

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CrossBrowdy by Joan Alba Maldonado