Geolocation Interface
Methods
Code void clearWatch(int watchId) #
clearWatch() method is called, the watch() process stops calling for new position identifiers and cease invoking callbacks.
void clearWatch(int watchId);
Code void getCurrentPosition(PositionCallback successCallback, [PositionErrorCallback errorCallback, Object options]) #
Acquires the user's current position via a new position object. If this fails, errorCallback is invoked with an nsIDOMGeoPositionError argument.
Parameters
successCallback- An
nsIDOMGeoPositionCallbackto be called when the current position is available.
errorCallback- An
nsIDOMGeoPositionErrorCallbackthat is called if an error occurs while retrieving the position; this parameter is optional.
options- An
nsIDOMGeoPositionOptionsobject specifying options; this parameter is optional.
void getCurrentPosition(PositionCallback successCallback, [PositionErrorCallback errorCallback, Object options]);
Code int watchPosition(PositionCallback successCallback, [PositionErrorCallback errorCallback, Object options]) #
Similar to getCurrentPosition(), except it continues to call the callback with updated position information periodically until clearWatch() is called.
Parameters
successCallback- An
nsIDOMGeoPositionCallbackthat is to be called whenever new position information is available.
errorCallback- An
nsIDOMGeoPositionErrorCallbackto call when an error occurs; this is an optional parameter.
options- An
nsIDOMGeoPositionOptionsobject specifying options; this parameter is optional.
Return value
An ID number that can be used to reference the watcher in the future when calling clearWatch().
int watchPosition(PositionCallback successCallback, [PositionErrorCallback errorCallback, Object options]);
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