cef/libcef/browser/speech_recognition_manager_...

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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 CEF_LIBCEF_BROWSER_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
#define CEF_LIBCEF_BROWSER_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "content/public/browser/speech_recognition_event_listener.h"
#include "content/public/browser/speech_recognition_manager_delegate.h"
// This is CEF's implementation of the SpeechRecognitionManagerDelegate
// interface. Based on chrome/browser/speech/
// chrome_speech_recognition_manager_delegate.[cc|h]
class CefSpeechRecognitionManagerDelegate
: NON_EXPORTED_BASE(public content::SpeechRecognitionManagerDelegate),
public content::SpeechRecognitionEventListener {
public:
CefSpeechRecognitionManagerDelegate();
virtual ~CefSpeechRecognitionManagerDelegate();
protected:
// 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;
virtual bool FilterProfanities(int render_process_id) OVERRIDE;
private:
class WebContentsWatcher;
// Callback called by |web_contents_watcher_| on the IO thread to signal
// web contents closure.
void WebContentsClosedCallback(int render_process_id, int render_view_id);
scoped_refptr<WebContentsWatcher> web_contents_watcher_;
bool filter_profanities_;
DISALLOW_COPY_AND_ASSIGN(CefSpeechRecognitionManagerDelegate);
};
#endif // CEF_LIBCEF_BROWSER_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_