Is there a way to know if geolocation is enabled for the current domain?

javascript, w3c-geolocation

Solution

If the user does not allow your app to use the Geolocation API the methods `getCurrentPosition` and `watchPosition` will return an PositionError object via the error callback:

void getCurrentPosition(successCallback,
                        errorCallback,
                        options);

long watchPosition(successCallback,
                   errorCallback,
                   options);

The PositionError looks like:

PositionError {
    code;
    message;
};

where the possibles values of code are:

PositionError.PERMISSION_DENIED = 1;
PositionError.POSITION_UNAVAILABLE = 2;
PositionError.TIMEOUT = 3;

And more specific:

- PERMISSION_DENIED (numeric value 1) The location acquisition process failed because the document does not have permission to use the Geolocation API.

The documentation here.

Problem

The website I'm working on uses HTML5 geolocation api. It works fine, but I need to know if the feature has been authorized. `navigator.geolocation` only tells if the feature is available. What I want to know is whether the user has enabled it already. Basically, I need to know if the browser will request permission to use the feature. Is it possible?

Original source