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// Copyright 2014 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 SERVICES_DEVICE_GEOLOCATION_GEOLOCATION_IMPL_H_
#define SERVICES_DEVICE_GEOLOCATION_GEOLOCATION_IMPL_H_
#include <memory>
#include "base/macros.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "services/device/geolocation/geolocation_provider_impl.h"
#include "services/device/public/mojom/geolocation.mojom.h"
namespace device {
class GeolocationProvider;
class GeolocationContext;
// Implements the Geolocation Mojo interface.
class GeolocationImpl : public mojom::Geolocation {
public:
// |context| must outlive this object.
GeolocationImpl(mojo::PendingReceiver<mojom::Geolocation> receiver,
GeolocationContext* context);
~GeolocationImpl() override;
// Starts listening for updates.
void StartListeningForUpdates();
// Pauses and resumes sending updates to the client of this instance.
void PauseUpdates();
void ResumeUpdates();
// Enables and disables geolocation override.
void SetOverride(const mojom::Geoposition& position);
void ClearOverride();
private:
// mojom::Geolocation:
void SetHighAccuracy(bool high_accuracy) override;
void QueryNextPosition(QueryNextPositionCallback callback) override;
void OnConnectionError();
void OnLocationUpdate(const mojom::Geoposition& position);
void ReportCurrentPosition();
// The binding between this object and the other end of the pipe.
mojo::Receiver<mojom::Geolocation> receiver_;
// Owns this object.
GeolocationContext* context_;
// Token that unsubscribes from GeolocationProvider updates when destroyed.
std::unique_ptr<GeolocationProvider::Subscription> geolocation_subscription_;
// The callback passed to QueryNextPosition.
QueryNextPositionCallback position_callback_;
// Valid if SetOverride() has been called and ClearOverride() has not
// subsequently been called.
mojom::Geoposition position_override_;
mojom::Geoposition current_position_;
// Whether this instance is currently observing location updates with high
// accuracy.
bool high_accuracy_;
bool has_position_to_report_;
DISALLOW_COPY_AND_ASSIGN(GeolocationImpl);
};
} // namespace device
#endif // SERVICES_DEVICE_GEOLOCATION_GEOLOCATION_IMPL_H_
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