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Bug 774580 - Send the Geolocation status to web content [r=vingtetun]

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This commit is contained in:
Fabrice Desré 2012-07-25 10:00:18 -07:00
parent a1206f42c8
commit 4425e23e2e
1 changed files with 20 additions and 0 deletions
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20
b2g/chrome/content/shell.js
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@ -613,3 +613,23 @@ Services.obs.addObserver(function ContentHandler(subject, topic, data) {
});
}, 'content-handler', false);
(function geolocationStatusTracker() {
gGeolocationActiveCount = 0;
Services.obs.addObserver(function(aSubject, aTopic, aData) {
let oldCount = gGeolocationActiveCount;
if (aData == "starting") {
gGeolocationActiveCount += 1;
} else if (aData == "shutdown") {
gGeolocationActiveCount -= 1;
}
// We need to track changes from 1 <-> 0
if (gGeolocationActiveCount + oldCount == 1) {
shell.sendChromeEvent({
type: 'geolocation-status',
active: (gGeolocationActiveCount == 1)
});
}
}, "geolocation-device-events", false);
})();