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// Copyright (c) 2012 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 DEVICE_GEOLOCATION_LOCATION_ARBITRATOR_H_
#define DEVICE_GEOLOCATION_LOCATION_ARBITRATOR_H_
#include "device/geolocation/geolocation_export.h"
namespace device {
// This class is responsible for handling updates from multiple underlying
// providers and resolving them to a single 'best' location fix at any given
// moment.
class DEVICE_GEOLOCATION_EXPORT LocationArbitrator {
public:
virtual ~LocationArbitrator(){};
// See more details in geolocation_provider.
virtual void StartProviders(bool enable_high_accuracy) = 0;
virtual void StopProviders() = 0;
// Called everytime permission is granted to a page for using geolocation.
// This may either be through explicit user action (e.g. responding to the
// infobar prompt) or inferred from a persisted site permission.
// The arbitrator will inform all providers of this, which may in turn use
// this information to modify their internal policy.
virtual void OnPermissionGranted() = 0;
// Returns true if this arbitrator has received at least one call to
// OnPermissionGranted().
virtual bool HasPermissionBeenGranted() const = 0;
};
} // namespace device
#endif // DEVICE_GEOLOCATION_LOCATION_ARBITRATOR_H_