// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Specification at:
// https://w3c.github.io/sensors/#sensor0

enum SensorState {
  "idle",
  "activating",
  "active",
  "errored"
};

[
    ActiveScriptWrappable,
    DependentLifetime,
    RuntimeEnabled=Sensor,
] interface Sensor : EventTarget {
    readonly attribute SensorState state;
    readonly attribute SensorReading? reading;

    [CallWith=ScriptState, RaisesException, MeasureAs=GenericSensorStart] void start();
    [CallWith=ScriptState, RaisesException, MeasureAs=GenericSensorStop] void stop();

    attribute EventHandler onerror;
    attribute EventHandler onchange;
    attribute EventHandler onstatechange;
};