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Security/Reviews/Gaia/SystemMessageHandler: Difference between revisions
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Security/Reviews/Gaia/SystemMessageHandler (view source)
Revision as of 18:12, 15 February 2013
, 15 February 2013→Components
| Line 25: | Line 25: | ||
boolean mozHasPendingMessage(in DOMString type); | boolean mozHasPendingMessage(in DOMString type); | ||
}; | }; | ||
The top level api, mozSetMessageHandler, is used by all system components and applications that need to receive messages. | |||
The most common use case is that applications (certified, privileged) use this API to listen to `activity` messages, which are received when another app initiated a MozActivity. For example, in the Camera: | |||
apps/camera/js/camera.js | |||
309 navigator.mozSetMessageHandler('activity', function(activity) { | |||
310 var name = activity.source.name; | |||
311 if (name === 'pick') { | |||
312 Camera.initPick(activity); | |||
313 } | |||
It is also used by system components to listen to more low level components that are not available to just any application. For example: | |||
apps/settings/js/bluetooth.js | |||
320: navigator.mozSetMessageHandler('bluetooth-requestconfirmation', | |||
326: navigator.mozSetMessageHandler('bluetooth-requestpincode', | |||
332: navigator.mozSetMessageHandler('bluetooth-requestpasskey', | |||
338: navigator.mozSetMessageHandler('bluetooth-cancel', | |||
344: navigator.mozSetMessageHandler('bluetooth-pairedstatuschanged', | |||
350: navigator.mozSetMessageHandler('bluetooth-hfp-status-changed', | |||
==== Relevant Documentation ==== | ==== Relevant Documentation ==== | ||