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// Copyright (c) 2011 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_INPUT_MANAGER_H_
#define CHROME_BROWSER_SPEECH_CHROME_SPEECH_INPUT_MANAGER_H_
#include <map>
#include "base/memory/ref_counted.h"
#include "base/memory/singleton.h"
#include "chrome/browser/speech/speech_input_bubble_controller.h"
#include "content/browser/speech/speech_input_manager.h"
#include "content/browser/speech/speech_recognizer.h"
namespace speech_input {
// This is Chrome's implementation of the SpeechInputManager interface. This
// class is a singleton and accessed via the Get method.
class ChromeSpeechInputManager : public SpeechInputManager,
public SpeechInputBubbleControllerDelegate,
public SpeechRecognizerDelegate {
public:
static ChromeSpeechInputManager* GetInstance();
// SpeechInputManager methods.
virtual void StartRecognition(SpeechInputManagerDelegate* delegate,
int caller_id,
int render_process_id,
int render_view_id,
const gfx::Rect& element_rect,
const std::string& language,
const std::string& grammar,
const std::string& origin_url);
virtual void CancelRecognition(int caller_id);
virtual void StopRecording(int caller_id);
virtual void CancelAllRequestsWithDelegate(
SpeechInputManagerDelegate* delegate);
// SpeechRecognizer::Delegate methods.
virtual void DidStartReceivingAudio(int caller_id);
virtual void SetRecognitionResult(int caller_id,
bool error,
const SpeechInputResultArray& result);
virtual void DidCompleteRecording(int caller_id);
virtual void DidCompleteRecognition(int caller_id);
virtual void OnRecognizerError(int caller_id,
SpeechRecognizer::ErrorCode error);
virtual void DidCompleteEnvironmentEstimation(int caller_id);
virtual void SetInputVolume(int caller_id, float volume, float noise_volume);
// SpeechInputBubbleController::Delegate methods.
virtual void InfoBubbleButtonClicked(int caller_id,
SpeechInputBubble::Button button);
virtual void InfoBubbleFocusChanged(int caller_id);
private:
class OptionalRequestInfo;
struct SpeechInputRequest {
SpeechInputRequest();
~SpeechInputRequest();
SpeechInputManagerDelegate* delegate;
scoped_refptr<SpeechRecognizer> recognizer;
bool is_active; // Set to true when recording or recognition is going on.
};
// Private constructor to enforce singleton.
friend struct DefaultSingletonTraits<ChromeSpeechInputManager>;
ChromeSpeechInputManager();
virtual ~ChromeSpeechInputManager();
bool HasPendingRequest(int caller_id) const;
SpeechInputManagerDelegate* GetDelegate(int caller_id) const;
void CancelRecognitionAndInformDelegate(int caller_id);
// Starts/restarts recognition for an existing request.
void StartRecognitionForRequest(int caller_id);
typedef std::map<int, SpeechInputRequest> SpeechRecognizerMap;
SpeechRecognizerMap requests_;
int recording_caller_id_;
scoped_refptr<SpeechInputBubbleController> bubble_controller_;
scoped_refptr<OptionalRequestInfo> optional_request_info_;
DISALLOW_COPY_AND_ASSIGN(ChromeSpeechInputManager);
};
} // namespace speech_input
#endif // CHROME_BROWSER_SPEECH_CHROME_SPEECH_INPUT_MANAGER_H_
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