Host-side implementation of ARC audio bridge.

components/arc/arc_bridge_service.h

 // Copyright 2015 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_ARC_BRIDGE_SERVICE_H_
 #define COMPONENTS_ARC_ARC_BRIDGE_SERVICE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 59 matching lines @@
     // Called whenever the state of the bridge has changed.
     virtual void OnStateChanged(State state) {}
 
     // Called whenever ARC's availability has changed for this system.
     virtual void OnAvailableChanged(bool available) {}
 
     // Called whenever the ARC app interface state changes.
     virtual void OnAppInstanceReady() {}
     virtual void OnAppInstanceClosed() {}
 
+    // Called whenever the ARC audio interface state changes.
+    virtual void OnAudioInstanceReady() {}
+    virtual void OnAudioInstanceClosed() {}
+
     // Called whenever the ARC auth interface state changes.
     virtual void OnAuthInstanceReady() {}
     virtual void OnAuthInstanceClosed() {}
 
     // Called whenever the ARC clipboard interface state changes.
     virtual void OnClipboardInstanceReady() {}
     virtual void OnClipboardInstanceClosed() {}
 
     // Called whenever the ARC crash collector interface state changes.
     virtual void OnCrashCollectorInstanceReady() {}
@@ skipping 66 matching lines @@
   // Adds or removes observers. This can only be called on the thread that this
   // class was created on.
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
   // Gets the Mojo interface for all the instance services. This will return
   // nullptr if that particular service is not ready yet. Use an Observer if
   // you want to be notified when this is ready. This can only be called on the
   // thread that this class was created on.
   AppInstance* app_instance() { return app_ptr_.get(); }
+  AudioInstance* audio_instance() { return audio_ptr_.get(); }
   AuthInstance* auth_instance() { return auth_ptr_.get(); }
   ClipboardInstance* clipboard_instance() { return clipboard_ptr_.get(); }
   CrashCollectorInstance* crash_collector_instance() {
     return crash_collector_ptr_.get();
   }
   ImeInstance* ime_instance() { return ime_ptr_.get(); }
   InputInstance* input_instance() { return input_ptr_.get(); }
   IntentHelperInstance* intent_helper_instance() {
     return intent_helper_ptr_.get();
   }
   NetInstance* net_instance() { return net_ptr_.get(); }
   NotificationsInstance* notifications_instance() {
     return notifications_ptr_.get();
   }
   PolicyInstance* policy_instance() { return policy_ptr_.get(); }
   PowerInstance* power_instance() { return power_ptr_.get(); }
   ProcessInstance* process_instance() { return process_ptr_.get(); }
   VideoInstance* video_instance() { return video_ptr_.get(); }
 
   int32_t app_version() const { return app_ptr_.version(); }
+  int32_t audio_version() const { return audio_ptr_.version(); }
   int32_t auth_version() const { return auth_ptr_.version(); }
   int32_t clipboard_version() const { return clipboard_ptr_.version(); }
   int32_t crash_collector_version() const {
     return crash_collector_ptr_.version();
   }
   int32_t ime_version() const { return ime_ptr_.version(); }
   int32_t input_version() const { return input_ptr_.version(); }
   int32_t intent_helper_version() const { return intent_helper_ptr_.version(); }
   int32_t net_version() const { return net_ptr_.version(); }
   int32_t notifications_version() const { return notifications_ptr_.version(); }
   int32_t policy_version() const { return policy_ptr_.version(); }
   int32_t power_version() const { return power_ptr_.version(); }
   int32_t process_version() const { return process_ptr_.version(); }
   int32_t video_version() const { return video_ptr_.version(); }
 
   // ArcHost:
   void OnAppInstanceReady(AppInstancePtr app_ptr) override;
+  void OnAudioInstanceReady(AudioInstancePtr audio_ptr) override;
   void OnAuthInstanceReady(AuthInstancePtr auth_ptr) override;
   void OnClipboardInstanceReady(ClipboardInstancePtr clipboard_ptr) override;
   void OnCrashCollectorInstanceReady(
       CrashCollectorInstancePtr crash_collector_ptr) override;
   void OnImeInstanceReady(ImeInstancePtr ime_ptr) override;
   void OnInputInstanceReady(InputInstancePtr input_ptr) override;
   void OnIntentHelperInstanceReady(
       IntentHelperInstancePtr intent_helper_ptr) override;
   void OnNetInstanceReady(NetInstancePtr net_ptr) override;
   void OnNotificationsInstanceReady(
@@ skipping 27 matching lines @@
 
  private:
   friend class ArcBridgeTest;
   FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, Basic);
   FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, Prerequisites);
   FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, ShutdownMidStartup);
   FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, Restart);
 
   // Called when one of the individual channels is closed.
   void CloseAppChannel();
+  void CloseAudioChannel();
   void CloseAuthChannel();
   void CloseClipboardChannel();
   void CloseCrashCollectorChannel();
   void CloseImeChannel();
   void CloseInputChannel();
   void CloseIntentHelperChannel();
   void CloseNetChannel();
   void CloseNotificationsChannel();
   void ClosePolicyChannel();
   void ClosePowerChannel();
   void CloseProcessChannel();
   void CloseVideoChannel();
 
   // Callbacks for QueryVersion.
   void OnAppVersionReady(int32_t version);
+  void OnAudioVersionReady(int32_t version);
   void OnAuthVersionReady(int32_t version);
   void OnClipboardVersionReady(int32_t version);
   void OnCrashCollectorVersionReady(int32_t version);
   void OnImeVersionReady(int32_t version);
   void OnInputVersionReady(int32_t version);
   void OnIntentHelperVersionReady(int32_t version);
   void OnNetVersionReady(int32_t version);
   void OnNotificationsVersionReady(int32_t version);
   void OnPolicyVersionReady(int32_t version);
   void OnPowerVersionReady(int32_t version);
   void OnProcessVersionReady(int32_t version);
   void OnVideoVersionReady(int32_t version);
 
   // Mojo interfaces.
   AppInstancePtr app_ptr_;
+  AudioInstancePtr audio_ptr_;
   AuthInstancePtr auth_ptr_;
   ClipboardInstancePtr clipboard_ptr_;
   CrashCollectorInstancePtr crash_collector_ptr_;
   ImeInstancePtr ime_ptr_;
   InputInstancePtr input_ptr_;
   IntentHelperInstancePtr intent_helper_ptr_;
   NetInstancePtr net_ptr_;
   NotificationsInstancePtr notifications_ptr_;
   PolicyInstancePtr policy_ptr_;
   PowerInstancePtr power_ptr_;
   ProcessInstancePtr process_ptr_;
   VideoInstancePtr video_ptr_;
 
   // Temporary Mojo interfaces.  After a Mojo interface pointer has been
   // received from the other endpoint, we still need to asynchronously query
   // its version.  While that is going on, we should still return nullptr on
   // the xxx_instance() functions.
   // To keep the xxx_instance() functions being trivial, store the instance
   // pointer in a temporary variable to avoid losing its reference.
   AppInstancePtr temporary_app_ptr_;
+  AudioInstancePtr temporary_audio_ptr_;
   AuthInstancePtr temporary_auth_ptr_;
   ClipboardInstancePtr temporary_clipboard_ptr_;
   CrashCollectorInstancePtr temporary_crash_collector_ptr_;
   ImeInstancePtr temporary_ime_ptr_;
   InputInstancePtr temporary_input_ptr_;
   IntentHelperInstancePtr temporary_intent_helper_ptr_;
   NetInstancePtr temporary_net_ptr_;
   NotificationsInstancePtr temporary_notifications_ptr_;
   PolicyInstancePtr temporary_policy_ptr_;
   PowerInstancePtr temporary_power_ptr_;
@@ skipping 12 matching lines @@
 
   // WeakPtrFactory to use callbacks.
   base::WeakPtrFactory<ArcBridgeService> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ArcBridgeService);
 };
 
 }  // namespace arc
 
 #endif  // COMPONENTS_ARC_ARC_BRIDGE_SERVICE_H_