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// Copyright (c) 2012 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_SPEECH_CHROME_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
#define CHROME_BROWSER_SPEECH_CHROME_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "chrome/browser/speech/speech_recognition_bubble_controller.h"
#include "content/public/browser/speech_recognition_event_listener.h"
#include "content/public/browser/speech_recognition_manager_delegate.h"
#include "content/public/browser/speech_recognition_session_config.h"
class SpeechRecognitionTrayIconController;
namespace speech {
// This is Chrome's implementation of the SpeechRecognitionManagerDelegate
// interface.
class ChromeSpeechRecognitionManagerDelegate
: NON_EXPORTED_BASE(public content::SpeechRecognitionManagerDelegate),
public content::SpeechRecognitionEventListener,
public SpeechRecognitionBubbleControllerDelegate {
public:
ChromeSpeechRecognitionManagerDelegate();
virtual ~ChromeSpeechRecognitionManagerDelegate();
protected:
// SpeechRecognitionBubbleControllerDelegate methods.
virtual void InfoBubbleButtonClicked(
int session_id, SpeechRecognitionBubble::Button button) OVERRIDE;
virtual void InfoBubbleFocusChanged(int session_id) OVERRIDE;
// SpeechRecognitionEventListener methods.
virtual void OnRecognitionStart(int session_id) OVERRIDE;
virtual void OnAudioStart(int session_id) OVERRIDE;
virtual void OnEnvironmentEstimationComplete(int session_id) OVERRIDE;
virtual void OnSoundStart(int session_id) OVERRIDE;
virtual void OnSoundEnd(int session_id) OVERRIDE;
virtual void OnAudioEnd(int session_id) OVERRIDE;
virtual void OnRecognitionEnd(int session_id) OVERRIDE;
virtual void OnRecognitionResults(
int session_id, const content::SpeechRecognitionResults& result) OVERRIDE;
virtual void OnRecognitionError(
int session_id, const content::SpeechRecognitionError& error) OVERRIDE;
virtual void OnAudioLevelsChange(int session_id, float volume,
float noise_volume) OVERRIDE;
// SpeechRecognitionManagerDelegate methods.
virtual void GetDiagnosticInformation(bool* can_report_metrics,
std::string* hardware_info) OVERRIDE;
virtual void CheckRecognitionIsAllowed(
int session_id,
base::Callback<void(bool ask_user, bool is_allowed)> callback) OVERRIDE;
virtual content::SpeechRecognitionEventListener* GetEventListener() OVERRIDE;
private:
class OptionalRequestInfo;
class TabWatcher;
// Shows the recognition tray icon for a given |context_name|, eventually
// with a notification balloon. The balloon is shown only once per profile
// for a given context_name. |render_process_id| is required to lookup the
// profile associated with the renderer that initiated the recognition.
static void ShowTrayIconOnUIThread(
const std::string& context_name,
int render_process_id,
scoped_refptr<SpeechRecognitionTrayIconController> tray_icon_controller);
// Checks for VIEW_TYPE_TAB_CONTENTS host in the UI thread and notifies back
// the result in the IO thread through |callback|.
static void CheckRenderViewType(
base::Callback<void(bool ask_user, bool is_allowed)> callback,
int render_process_id,
int render_view_id,
bool js_api);
// Starts a new recognition session, using the config of the last one
// (which is copied into |last_session_config_|). Used for "try again".
void RestartLastSession();
// Callback called by |tab_watcher_| on the IO thread to signal tab closure.
void TabClosedCallback(int render_process_id, int render_view_id);
// Lazy initializers for bubble and tray icon controller.
SpeechRecognitionBubbleController* GetBubbleController();
SpeechRecognitionTrayIconController* GetTrayIconController();
scoped_refptr<SpeechRecognitionBubbleController> bubble_controller_;
scoped_refptr<SpeechRecognitionTrayIconController> tray_icon_controller_;
scoped_refptr<OptionalRequestInfo> optional_request_info_;
scoped_ptr<content::SpeechRecognitionSessionConfig> last_session_config_;
scoped_refptr<TabWatcher> tab_watcher_;
DISALLOW_COPY_AND_ASSIGN(ChromeSpeechRecognitionManagerDelegate);
};
} // namespace speech
#endif // CHROME_BROWSER_SPEECH_CHROME_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
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