watchPosition: function()

in www/geolocation.js [160:201]

• 8 lines of code
• 1 McCabe index (conditional complexity)

    watchPosition: function (successCallback, errorCallback, options) {
        argscheck.checkArgs('fFO', 'geolocation.getCurrentPosition', arguments);
        options = parseParameters(options);

        const id = utils.createUUID();

        // Tell device to get a position ASAP, and also retrieve a reference to the timeout timer generated in getCurrentPosition
        timers[id] = geolocation.getCurrentPosition(successCallback, errorCallback, options);

        const fail = function (e) {
            clearTimeout(timers[id].timer);
            const err = new PositionError(e.code, e.message);
            if (errorCallback) {
                errorCallback(err);
            }
        };

        const win = function (p) {
            clearTimeout(timers[id].timer);
            if (options.timeout !== Infinity) {
                timers[id].timer = createTimeout(fail, options.timeout);
            }
            const pos = new Position(
                {
                    latitude: p.latitude,
                    longitude: p.longitude,
                    altitude: p.altitude,
                    accuracy: p.accuracy,
                    heading: p.heading,
                    velocity: p.velocity,
                    altitudeAccuracy: p.altitudeAccuracy
                },
                p.timestamp
            );
            geolocation.lastPosition = pos;
            successCallback(pos);
        };

        exec(win, fail, 'Geolocation', 'addWatch', [id, options.enableHighAccuracy]);

        return id;
    },