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WebAPI/Inter App Communication Alt proposal: Difference between revisions
WebAPI/Inter App Communication Alt proposal (view source)
Revision as of 07:41, 19 July 2013
, 19 July 2013→Lockscreen and Music: Ditto.
(→Connection acknowledgement: Ditto.) |
(→Lockscreen and Music: Ditto.) |
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* display information about the currently played track from the Gaia Music app or any other 3rd party music privileged app. | * display information about the currently played track from the Gaia Music app or any other 3rd party music privileged app. | ||
In order to receive information about the currently played music track, the System app needs to add the following ' | In order to receive information about the currently played music track, the System app needs to add the following 'connections' field to its manifest | ||
{ | { | ||
'name': 'System', | 'name': 'System', | ||
/* ... */ | /* ... */ | ||
' | 'connections': { | ||
'musictrack': { | 'musictrack': { | ||
'description': 'Show the currently played music track information in the lockscreen' | 'description': 'Show the currently played music track information in the lockscreen' | ||
| Line 114: | Line 114: | ||
'name': 'Music', (or Songbirdy or iTunos) | 'name': 'Music', (or Songbirdy or iTunos) | ||
/* ... */ | /* ... */ | ||
' | 'connections': { | ||
'musicremotecontrol': { | 'musicremotecontrol': { | ||
'description': 'Play, pause and stop music tracks' | 'description': 'Play, pause and stop music tracks' | ||
| Line 158: | Line 158: | ||
The user allows the connection and a system message is sent to the lockscreen. The lockscreen only allows connections with privileged apps, so it checks that in the connection request handler, and set a handler for the messages sent through the MessagePort via ''MessagePort.onmessage'' | The user allows the connection and a system message is sent to the lockscreen. The lockscreen only allows connections with privileged apps, so it checks that in the connection request handler, and set a handler for the messages sent through the MessagePort via ''MessagePort.onmessage'' | ||
navigator.setMessageHandler(' | navigator.setMessageHandler('connection', function(connectionRequest) { | ||
if (connectionRequest.keyword !== 'musictrack') { | if (connectionRequest.keyword !== 'musictrack') { | ||
return; | return; | ||