Retrieving system information using JSWrt object in Symbian Web Runtime

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This code snippet shows what data can be obtained through the little-known JSWrt object, a part of the widget object in WRT1.1.

Article Metadata

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Tested with

Devices(s): Nokia N97, Nokia N97 Mini, Nokia 5800 XpressMusic, Nokia 6710 Navigator

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Compatibility

Platform(s): S60 5th Edition, S60 3rd Edition FP2

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Article

Keywords: widget.wrt

Created: User:Kbwiki (29 Dec 2009)

Last edited: hamishwillee (06 May 2013)

JSWrt object

JSWrt object structure, properties, and sample return values:

• widget
  • wrt [JSWrt]
    • version
      • On devices using Browser 7.0, 1.1 is returned. On devices using Browser 7.1, browser version number is returned (for instance, BrowserNG/7.1.13841).
    • platform [JSWrtPlatform]
      • id
        • Platform identifier S60
      • romVersion
        • SW version and product type v 31.0.008 24-8-2009 RM-365 (C) NMP
      • manufacturer
        • Phone manufacturer Nokia
      • packageVersion
        • on 7.0 browser 7.00(0) and on 7.1 browser 7.01(0)
      • model
        • Phone model N97

Sample code

Required HTML elements

 <pre><div id="stdOut"></div></pre>

Required JavaScript code

Before accessing the JSWrt object, check if it exists by using the typeof operator.

	if(typeof widget.wrt == 'object'){..}

function init()
{
	if(typeof widget.wrt == 'object'){
 
		writelog(widget.wrt.version);
		writelog(widget.wrt.platform.id);
		writelog(widget.wrt.platform.romVersion);
		writelog(widget.wrt.platform.manufacturer);
		writelog(widget.wrt.platform.packageVersion);
		writelog(widget.wrt.platform.model);
	}		
}
 
function writelog(text){
	document.getElementById("stdOut").innerHTML += text +"<br/>";	
}