import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/speakermanager/SpeakerManagerService.h

@@ -0,0 +1,79 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_SpeakerManagerService_h__
+#define mozilla_dom_SpeakerManagerService_h__
+
+#include "nsIObserver.h"
+#include "nsTArray.h"
+#include "SpeakerManager.h"
+#include "nsIAudioManager.h"
+#include "nsCheapSets.h"
+#include "nsHashKeys.h"
+
+namespace mozilla {
+namespace dom {
+
+class SpeakerManagerService : public nsIObserver
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIOBSERVER
+  /*
+   * Return null or instance which has been created.
+   */
+  static SpeakerManagerService* GetSpeakerManagerService();
+  /*
+   * Return SpeakerManagerService instance.
+   * If SpeakerManagerService is not exist, create and return new one.
+   */
+  static SpeakerManagerService* GetOrCreateSpeakerManagerService();
+  virtual void ForceSpeaker(bool aEnable, bool aVisible);
+  virtual bool GetSpeakerStatus();
+  virtual void SetAudioChannelActive(bool aIsActive);
+  // Called by child
+  void ForceSpeaker(bool enable, uint64_t aChildid);
+  // Register the SpeakerManager to service for notify the speakerforcedchange event
+  void RegisterSpeakerManager(SpeakerManager* aSpeakerManager)
+  {
+    mRegisteredSpeakerManagers.AppendElement(aSpeakerManager);
+  }
+  void UnRegisterSpeakerManager(SpeakerManager* aSpeakerManager)
+  {
+    mRegisteredSpeakerManagers.RemoveElement(aSpeakerManager);
+  }
+
+protected:
+  SpeakerManagerService();
+
+  virtual ~SpeakerManagerService();
+  // Notify to UA if device speaker status changed
+  virtual void Notify();
+
+  void TurnOnSpeaker(bool aEnable);
+
+  /**
+   * Shutdown the singleton.
+   */
+  static void Shutdown();
+
+  nsTArray<RefPtr<SpeakerManager> > mRegisteredSpeakerManagers;
+  // Set for remember all the child speaker status
+  nsCheapSet<nsUint64HashKey> mSpeakerStatusSet;
+  // The Speaker status assign by UA
+  bool mOrgSpeakerStatus;
+
+  bool mVisible;
+  // This is needed for IPC communication between
+  // SpeakerManagerServiceChild and this class.
+  friend class ContentParent;
+  friend class ContentChild;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif