| // Copyright 2016 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 COMPONENTS_ARC_AUDIO_ARC_AUDIO_BRIDGE_H_ |
| #define COMPONENTS_ARC_AUDIO_ARC_AUDIO_BRIDGE_H_ |
| |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "chromeos/audio/cras_audio_handler.h" |
| #include "components/arc/common/audio.mojom.h" |
| #include "components/arc/session/connection_observer.h" |
| #include "components/keyed_service/core/keyed_service.h" |
| |
| namespace content { |
| class BrowserContext; |
| } // namespace content |
| |
| namespace arc { |
| |
| class ArcBridgeService; |
| |
| class ArcAudioBridge : public KeyedService, |
| public ConnectionObserver<mojom::AudioInstance>, |
| public mojom::AudioHost, |
| public chromeos::CrasAudioHandler::AudioObserver { |
| public: |
| // Returns singleton instance for the given BrowserContext, |
| // or nullptr if the browser |context| is not allowed to use ARC. |
| static ArcAudioBridge* GetForBrowserContext(content::BrowserContext* context); |
| |
| ArcAudioBridge(content::BrowserContext* context, |
| ArcBridgeService* bridge_service); |
| ~ArcAudioBridge() override; |
| |
| // ConnectionObserver<mojom::AudioInstance> overrides. |
| void OnConnectionReady() override; |
| void OnConnectionClosed() override; |
| |
| // mojom::AudioHost overrides. |
| void ShowVolumeControls() override; |
| void OnSystemVolumeUpdateRequest(int32_t percent) override; |
| |
| private: |
| // chromeos::CrasAudioHandler::AudioObserver overrides. |
| void OnAudioNodesChanged() override; |
| void OnOutputNodeVolumeChanged(uint64_t node_id, int volume) override; |
| void OnOutputMuteChanged(bool mute_on) override; |
| |
| void SendSwitchState(bool headphone_inserted, bool microphone_inserted); |
| void SendVolumeState(); |
| |
| ArcBridgeService* const arc_bridge_service_; // Owned by ArcServiceManager. |
| |
| chromeos::CrasAudioHandler* cras_audio_handler_ = nullptr; |
| |
| int volume_ = 0; // Volume range: 0-100. |
| bool muted_ = false; |
| |
| // Avoids sending requests when the instance is unavailable. |
| // TODO(crbug.com/549195): Remove once the root cause is fixed. |
| bool available_ = false; |
| |
| DISALLOW_COPY_AND_ASSIGN(ArcAudioBridge); |
| }; |
| |
| } // namespace arc |
| |
| #endif // COMPONENTS_ARC_AUDIO_ARC_AUDIO_BRIDGE_H_ |