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-rw-r--r--dom/media/webspeech/synth/nsSpeechTask.h128
1 files changed, 128 insertions, 0 deletions
diff --git a/dom/media/webspeech/synth/nsSpeechTask.h b/dom/media/webspeech/synth/nsSpeechTask.h
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+++ b/dom/media/webspeech/synth/nsSpeechTask.h
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+/* -*- 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 "SpeechSynthesisUtterance.h"
+#include "AudioChannelAgent.h"
+#include "nsISpeechService.h"
+#include "nsWeakReference.h"
+
+namespace mozilla {
+
+class SharedBuffer;
+
+namespace dom {
+
+class SpeechSynthesisUtterance;
+class SpeechSynthesis;
+
+class nsSpeechTask : public nsISpeechTask,
+ public nsIAudioChannelAgentCallback,
+ public nsSupportsWeakReference {
+ public:
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+ NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsSpeechTask, nsISpeechTask)
+
+ NS_DECL_NSISPEECHTASK
+ NS_DECL_NSIAUDIOCHANNELAGENTCALLBACK
+
+ explicit nsSpeechTask(SpeechSynthesisUtterance* aUtterance,
+ bool aShouldResistFingerprinting);
+ nsSpeechTask(float aVolume, const nsAString& aText,
+ bool aShouldResistFingerprinting);
+
+ virtual void Pause();
+
+ virtual void Resume();
+
+ virtual void Cancel();
+
+ virtual void ForceEnd();
+
+ void SetSpeechSynthesis(SpeechSynthesis* aSpeechSynthesis);
+
+ void Init();
+
+ void SetChosenVoiceURI(const nsAString& aUri);
+
+ virtual void SetAudioOutputVolume(float aVolume);
+
+ void ForceError(float aElapsedTime, uint32_t aCharIndex);
+
+ bool IsPreCanceled() { return mPreCanceled; };
+
+ bool IsPrePaused() { return mPrePaused; }
+
+ bool ShouldResistFingerprinting() { return mShouldResistFingerprinting; }
+
+ enum { STATE_PENDING, STATE_SPEAKING, STATE_ENDED };
+
+ uint32_t GetState() const { return mState; }
+
+ bool IsSpeaking() const { return mState == STATE_SPEAKING; }
+
+ bool IsPending() const { return mState == STATE_PENDING; }
+
+ 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,
+ uint32_t aCharLength, uint8_t argc);
+
+ 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 CreateAudioChannelAgent();
+
+ void DestroyAudioChannelAgent();
+
+ nsCOMPtr<nsISpeechTaskCallback> mCallback;
+
+ RefPtr<mozilla::dom::AudioChannelAgent> mAudioChannelAgent;
+
+ RefPtr<SpeechSynthesis> mSpeechSynthesis;
+
+ nsString mChosenVoiceURI;
+
+ bool mShouldResistFingerprinting;
+
+ uint32_t mState;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif