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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_ARC_VMM_ARC_SYSTEM_STATE_BRIDGE_H_
#define CHROME_BROWSER_ASH_ARC_VMM_ARC_SYSTEM_STATE_BRIDGE_H_
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "base/observer_list_types.h"
#include "chromeos/ash/experiences/arc/mojom/system_state.mojom.h"
#include "components/keyed_service/core/keyed_service.h"
namespace content {
class BrowserContext;
} // namespace content
namespace arc {
class ArcBridgeService;
// This class handles ARC system state update from ARC side.
class ArcSystemStateBridge : public KeyedService,
public mojom::SystemStateHost {
public:
class Observer : public base::CheckedObserver {
public:
// Observer for ARC SystemAppRunningState change.
virtual void OnArcSystemAppRunningStateChange(
const mojom::SystemAppRunningState& state) {}
protected:
~Observer() override = default;
};
// Returns singleton instance for the given BrowserContext,
// or nullptr if the browser |context| is not allowed to use ARC.
static ArcSystemStateBridge* GetForBrowserContext(
content::BrowserContext* context);
static ArcSystemStateBridge* GetForBrowserContextForTesting(
content::BrowserContext* context);
static void EnsureFactoryBuilt();
ArcSystemStateBridge(content::BrowserContext* context,
ArcBridgeService* bridge_service);
ArcSystemStateBridge(const ArcSystemStateBridge&) = delete;
ArcSystemStateBridge& operator=(const ArcSystemStateBridge&) = delete;
~ArcSystemStateBridge() override;
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
const mojom::SystemAppRunningState& system_app_running_state() {
return *state_;
}
// mojom::SystemStateHost override:
void UpdateAppRunningState(mojom::SystemAppRunningStatePtr state) override;
private:
const raw_ptr<ArcBridgeService>
arc_bridge_service_; // Owned by ArcServiceManager.
mojom::SystemAppRunningStatePtr state_;
base::ObserverList<Observer> observer_list_;
base::WeakPtrFactory<ArcSystemStateBridge> weak_ptr_factory_{this};
};
} // namespace arc
#endif // CHROME_BROWSER_ASH_ARC_VMM_ARC_SYSTEM_STATE_BRIDGE_H_
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