1 files changed, 139 insertions, 0 deletions
diff --git a/dom/media/webspeech/synth/nsSpeechTask.h b/dom/media/webspeech/synth/nsSpeechTask.h
new file mode 100644
index 000000000..c2c5dba84
--- /dev/null
+++ b/dom/media/webspeech/synth/nsSpeechTask.h
@@ -0,0 +1,139 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* 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_nsSpeechTask_h
+#define mozilla_dom_nsSpeechTask_h
+
+#include "MediaStreamGraph.h"
+#include "SpeechSynthesisUtterance.h"
+#include "nsIAudioChannelAgent.h"
+#include "nsISpeechService.h"
+
+namespace mozilla {
+
+class SharedBuffer;
+
+namespace dom {
+
+class SpeechSynthesisUtterance;
+class SpeechSynthesis;
+class SynthStreamListener;
+
+class nsSpeechTask : public nsISpeechTask
+                   , public nsIAudioChannelAgentCallback
+                   , public nsSupportsWeakReference
+{
+  friend class SynthStreamListener;
+
+public:
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsSpeechTask, nsISpeechTask)
+
+  NS_DECL_NSISPEECHTASK
+  NS_DECL_NSIAUDIOCHANNELAGENTCALLBACK
+
+  explicit nsSpeechTask(SpeechSynthesisUtterance* aUtterance);
+  nsSpeechTask(float aVolume, const nsAString& aText);
+
+  virtual void Pause();
+
+  virtual void Resume();
+
+  virtual void Cancel();
+
+  virtual void ForceEnd();
+
+  float GetCurrentTime();
+
+  uint32_t GetCurrentCharOffset();
+
+  void SetSpeechSynthesis(SpeechSynthesis* aSpeechSynthesis);
+
+  void InitDirectAudio();
+  void InitIndirectAudio();
+
+  void SetChosenVoiceURI(const nsAString& aUri);
+
+  virtual void SetAudioOutputVolume(float aVolume);
+
+  bool IsPreCanceled()
+  {
+    return mPreCanceled;
+  };
+
+  bool IsPrePaused()
+  {
+    return mPrePaused;
+  }
+
+protected:
+  virtual ~nsSpeechTask();
+
+  nsresult DispatchStartImpl();
+
+  virtual nsresult DispatchStartImpl(const nsAString& aUri);
+
+  virtual nsresult DispatchEndImpl(float aElapsedTime, uint32_t aCharIndex);
+
+  virtual nsresult DispatchPauseImpl(float aElapsedTime, uint32_t aCharIndex);
+
+  virtual nsresult DispatchResumeImpl(float aElapsedTime, uint32_t aCharIndex);
+
+  virtual nsresult DispatchErrorImpl(float aElapsedTime, uint32_t aCharIndex);
+
+  virtual nsresult DispatchBoundaryImpl(const nsAString& aName,
+                                        float aElapsedTime,
+                                        uint32_t aCharIndex);
+
+  virtual nsresult DispatchMarkImpl(const nsAString& aName,
+                                    float aElapsedTime, uint32_t aCharIndex);
+
+  RefPtr<SpeechSynthesisUtterance> mUtterance;
+
+  float mVolume;
+
+  nsString mText;
+
+  bool mInited;
+
+  bool mPrePaused;
+
+  bool mPreCanceled;
+
+private:
+  void End();
+
+  void SendAudioImpl(RefPtr<mozilla::SharedBuffer>& aSamples, uint32_t aDataLen);
+
+  nsresult DispatchStartInner();
+
+  nsresult DispatchEndInner(float aElapsedTime, uint32_t aCharIndex);
+
+  void CreateAudioChannelAgent();
+
+  void DestroyAudioChannelAgent();
+
+  RefPtr<SourceMediaStream> mStream;
+
+  RefPtr<MediaInputPort> mPort;
+
+  nsCOMPtr<nsISpeechTaskCallback> mCallback;
+
+  nsCOMPtr<nsIAudioChannelAgent> mAudioChannelAgent;
+
+  uint32_t mChannels;
+
+  RefPtr<SpeechSynthesis> mSpeechSynthesis;
+
+  bool mIndirectAudio;
+
+  nsString mChosenVoiceURI;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif