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ash / components / arc / chrome_feature_flags / arc_chrome_feature_flags_bridge.h [blame]

// 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 ASH_COMPONENTS_ARC_CHROME_FEATURE_FLAGS_ARC_CHROME_FEATURE_FLAGS_BRIDGE_H_
#define ASH_COMPONENTS_ARC_CHROME_FEATURE_FLAGS_ARC_CHROME_FEATURE_FLAGS_BRIDGE_H_

#include "ash/components/arc/mojom/chrome_feature_flags.mojom.h"
#include "ash/components/arc/session/connection_observer.h"
#include "base/memory/raw_ptr.h"
#include "base/threading/thread_checker.h"
#include "components/keyed_service/core/keyed_service.h"

namespace content {
class BrowserContext;
}  // namespace content

namespace arc {

class ArcBridgeService;

// This class notifies the Chrome feature flag states to the ARC.
class ArcChromeFeatureFlagsBridge
    : public KeyedService,
      public ConnectionObserver<mojom::ChromeFeatureFlagsInstance> {
 public:
  // Returns singleton instance for the given BrowserContext,
  // or nullptr if the browser |context| is not allowed to use ARC.
  static ArcChromeFeatureFlagsBridge* GetForBrowserContext(
      content::BrowserContext* context);
  static ArcChromeFeatureFlagsBridge* GetForBrowserContextForTesting(
      content::BrowserContext* context);

  ArcChromeFeatureFlagsBridge(content::BrowserContext* context,
                              ArcBridgeService* bridge_service);

  ArcChromeFeatureFlagsBridge(const ArcChromeFeatureFlagsBridge&) = delete;
  ArcChromeFeatureFlagsBridge& operator=(const ArcChromeFeatureFlagsBridge&) =
      delete;

  ~ArcChromeFeatureFlagsBridge() override;

  // ConnectionObserver<mojom::ChromeFeatureFlagsInstance> overrides:
  void OnConnectionReady() override;

  static void EnsureFactoryBuilt();

 private:
  THREAD_CHECKER(thread_checker_);

  void NotifyFeatureFlags();

  const raw_ptr<ArcBridgeService>
      arc_bridge_service_;  // Owned by ArcServiceManager.
};

}  // namespace arc

#endif  // ASH_COMPONENTS_ARC_CHROME_FEATURE_FLAGS_ARC_CHROME_FEATURE_FLAGS_BRIDGE_H_