third_party/WebKit/Source/modules/sensor/SensorReading.h

// 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.

#ifndef SensorReading_h
#define SensorReading_h

#include "bindings/core/v8/ScriptWrappable.h"
#include "core/dom/DOMHighResTimeStamp.h"
#include "core/dom/DOMTimeStamp.h"
#include "modules/sensor/SensorProxy.h"

namespace blink {

class ExecutionContext;
class ScriptState;

class SensorReading
    : public GarbageCollectedFinalized<SensorReading>
    , public ScriptWrappable {
    DEFINE_WRAPPERTYPEINFO();
public:
    DECLARE_VIRTUAL_TRACE();

    DOMHighResTimeStamp timeStamp(ScriptState*) const;

    // Returns 'true' if the current reading value is different than the given
    // previous one; otherwise returns 'false'.
    virtual bool isReadingUpdated(const SensorProxy::Reading& previous) const = 0;

    virtual ~SensorReading();

protected:
    explicit SensorReading(SensorProxy*);

protected:
    Member<SensorProxy> m_sensorProxy;
};

} // namepsace blink

#endif // SensorReading_h