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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.
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "content/browser/geolocation/geolocation_provider_impl.h"
#include "content/common/geolocation_service.mojom.h"
#include "content/public/common/mojo_geoposition.mojom.h"
#include "mojo/public/cpp/bindings/binding.h"
#ifndef CONTENT_BROWSER_GEOLOCATION_GEOLOCATION_SERVICE_IMPL_H_
#define CONTENT_BROWSER_GEOLOCATION_GEOLOCATION_SERVICE_IMPL_H_
namespace content {
class GeolocationProvider;
class GeolocationServiceContext;
// Implements the GeolocationService Mojo interface.
class GeolocationServiceImpl : public mojom::GeolocationService {
public:
// |context| must outlive this object. |update_callback| will be called when
// location updates are sent, allowing the client to know when the service
// is being used.
GeolocationServiceImpl(
mojo::InterfaceRequest<mojom::GeolocationService> request,
GeolocationServiceContext* context,
const base::Closure& update_callback);
~GeolocationServiceImpl() 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 Geoposition& position);
void ClearOverride();
private:
typedef mojo::Callback<void(mojom::MojoGeopositionPtr)> PositionCallback;
// GeolocationService:
void SetHighAccuracy(bool high_accuracy) override;
void QueryNextPosition(const PositionCallback& callback) override;
void OnConnectionError();
void OnLocationUpdate(const Geoposition& position);
void ReportCurrentPosition();
// The binding between this object and the other end of the pipe.
mojo::Binding<mojom::GeolocationService> binding_;
// Owns this object.
GeolocationServiceContext* context_;
scoped_ptr<GeolocationProvider::Subscription> geolocation_subscription_;
// Callback that allows the instantiator of this class to be notified on
// position updates.
base::Closure update_callback_;
// The callback passed to QueryNextPosition.
PositionCallback position_callback_;
// Valid iff SetOverride() has been called and ClearOverride() has not
// subsequently been called.
Geoposition position_override_;
mojom::MojoGeoposition 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(GeolocationServiceImpl);
};
} // namespace content
#endif // CONTENT_BROWSER_GEOLOCATION_GEOLOCATION_SERVICE_IMPL_H_
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