| // Copyright (c) 2020 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_UI_CAPTION_BUBBLE_CONTROLLER_H_ |
| #define CHROME_BROWSER_UI_CAPTION_BUBBLE_CONTROLLER_H_ |
| |
| #include <memory> |
| #include <string> |
| |
| #include "media/mojo/mojom/speech_recognition_service.mojom.h" |
| #include "ui/native_theme/caption_style.h" |
| |
| namespace captions { |
| |
| class LiveCaptionSpeechRecognitionHost; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // Caption Bubble Controller |
| // |
| // The interface for the caption bubble controller. It controls the caption |
| // bubble. It is responsible for tasks such as post-processing of the text that |
| // might need to occur before it is displayed in the bubble, and hiding or |
| // showing the caption bubble when captions are received. There exists one |
| // caption bubble controller per profile. |
| // |
| class CaptionBubbleController { |
| public: |
| CaptionBubbleController() = default; |
| virtual ~CaptionBubbleController() = default; |
| CaptionBubbleController(const CaptionBubbleController&) = delete; |
| CaptionBubbleController& operator=(const CaptionBubbleController&) = delete; |
| |
| static std::unique_ptr<CaptionBubbleController> Create(); |
| |
| // Called when a transcription is received from the service. Returns whether |
| // the transcription result was set on the caption bubble successfully. |
| // Transcriptions will halt if this returns false. |
| virtual bool OnTranscription( |
| LiveCaptionSpeechRecognitionHost* live_caption_speech_recognition_host, |
| const media::mojom::SpeechRecognitionResultPtr& result) = 0; |
| |
| // Called when the speech service has an error. |
| virtual void OnError(LiveCaptionSpeechRecognitionHost* |
| live_caption_speech_recognition_host) = 0; |
| |
| // Called when the audio stream has ended. |
| virtual void OnAudioStreamEnd(LiveCaptionSpeechRecognitionHost* |
| live_caption_speech_recognition_host) = 0; |
| |
| // Called when the caption style changes. |
| virtual void UpdateCaptionStyle( |
| absl::optional<ui::CaptionStyle> caption_style) = 0; |
| |
| private: |
| friend class LiveCaptionControllerTest; |
| |
| virtual bool IsWidgetVisibleForTesting() = 0; |
| virtual std::string GetBubbleLabelTextForTesting() = 0; |
| }; |
| |
| } // namespace captions |
| |
| #endif // CHROME_BROWSER_UI_CAPTION_BUBBLE_CONTROLLER_H_ |