| // Copyright 2014 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 CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_SPEECH_MONITOR_H_ |
| #define CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_SPEECH_MONITOR_H_ |
| |
| #include <deque> |
| |
| #include "base/memory/ref_counted.h" |
| #include "chrome/browser/speech/tts_platform.h" |
| #include "content/public/test/test_utils.h" |
| |
| namespace chromeos { |
| |
| // For testing purpose installs itself as the platform speech synthesis engine, |
| // allowing it to intercept all speech calls, and then provides a method to |
| // block until the next utterance is spoken. |
| class SpeechMonitor : public TtsPlatformImpl { |
| public: |
| SpeechMonitor(); |
| virtual ~SpeechMonitor(); |
| |
| // Blocks until the next utterance is spoken, and returns its text. |
| std::string GetNextUtterance(); |
| |
| // Wait for next utterance and return true if next utterance is ChromeVox |
| // enabled message. |
| bool SkipChromeVoxEnabledMessage(); |
| |
| // TtsPlatformImpl implementation. |
| virtual bool PlatformImplAvailable() OVERRIDE; |
| virtual bool Speak( |
| int utterance_id, |
| const std::string& utterance, |
| const std::string& lang, |
| const VoiceData& voice, |
| const UtteranceContinuousParameters& params) OVERRIDE; |
| virtual bool StopSpeaking() OVERRIDE; |
| virtual bool IsSpeaking() OVERRIDE; |
| virtual void GetVoices(std::vector<VoiceData>* out_voices) OVERRIDE; |
| virtual void Pause() OVERRIDE {} |
| virtual void Resume() OVERRIDE {} |
| virtual std::string error() OVERRIDE; |
| virtual void clear_error() OVERRIDE {} |
| virtual void set_error(const std::string& error) OVERRIDE {} |
| virtual void WillSpeakUtteranceWithVoice( |
| const Utterance* utterance, const VoiceData& voice_data) OVERRIDE; |
| |
| private: |
| scoped_refptr<content::MessageLoopRunner> loop_runner_; |
| std::deque<std::string> utterance_queue_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SpeechMonitor); |
| }; |
| |
| } // namespace chromeos |
| |
| #endif // CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_SPEECH_MONITOR_H_ |