1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_APP_LIST_SPEECH_UI_MODEL_H_ 6 #define UI_APP_LIST_SPEECH_UI_MODEL_H_ 7 8 #include "base/basictypes.h" 9 #include "base/observer_list.h" 10 #include "base/strings/string16.h" 11 #include "ui/app_list/app_list_export.h" 12 #include "ui/app_list/speech_ui_model_observer.h" 13 #include "ui/gfx/image/image_skia.h" 14 15 namespace app_list { 16 17 // SpeechUIModel provides the interface to update the UI for speech recognition. 18 class APP_LIST_EXPORT SpeechUIModel { 19 public: 20 explicit SpeechUIModel(SpeechRecognitionState initial_state); 21 virtual ~SpeechUIModel(); 22 23 void SetSpeechResult(const base::string16& result, bool is_final); 24 void UpdateSoundLevel(int16 level); 25 void SetSpeechRecognitionState(SpeechRecognitionState new_state); 26 27 void AddObserver(SpeechUIModelObserver* observer); 28 void RemoveObserver(SpeechUIModelObserver* observer); 29 30 const base::string16& result() const { return result_; } 31 bool is_final() const { return is_final_; } 32 int16 sound_level() const { return sound_level_; } 33 SpeechRecognitionState state() const { return state_; } 34 const gfx::ImageSkia& logo() const { return logo_; } 35 void set_logo(const gfx::ImageSkia& logo) { logo_ = logo; } 36 37 private: 38 base::string16 result_; 39 bool is_final_; 40 int16 sound_level_; 41 SpeechRecognitionState state_; 42 43 // The logo image which the speech UI will show at the top-left. 44 gfx::ImageSkia logo_; 45 46 // The sound level range to compute visible sound-level. 47 int16 minimum_sound_level_; 48 int16 maximum_sound_level_; 49 50 ObserverList<SpeechUIModelObserver> observers_; 51 52 DISALLOW_COPY_AND_ASSIGN(SpeechUIModel); 53 }; 54 55 } // namespace app_list 56 57 #endif // UI_APP_LIST_SPEECH_UI_MODEL_H_ 58
