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// Copyright (c) 2010 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_SPEECH_INPUT_DISPATCHER_HOST_H_
#define CHROME_BROWSER_SPEECH_SPEECH_INPUT_DISPATCHER_HOST_H_
#include "base/scoped_ptr.h"
#include "chrome/browser/browser_message_filter.h"
#include "chrome/browser/speech/speech_input_manager.h"
namespace speech_input {
// SpeechInputDispatcherHost is a delegate for Speech API messages used by
// RenderMessageFilter.
// It's the complement of SpeechInputDispatcher (owned by RenderView).
class SpeechInputDispatcherHost : public BrowserMessageFilter,
public SpeechInputManager::Delegate {
public:
class SpeechInputCallers;
explicit SpeechInputDispatcherHost(int render_process_id);
// SpeechInputManager::Delegate methods.
virtual void SetRecognitionResult(int caller_id,
const SpeechInputResultArray& result);
virtual void DidCompleteRecording(int caller_id);
virtual void DidCompleteRecognition(int caller_id);
// BrowserMessageFilter implementation.
virtual bool OnMessageReceived(const IPC::Message& message,
bool* message_was_ok);
// Singleton accessor setter useful for tests.
static void set_manager_accessor(SpeechInputManager::AccessorMethod* method) {
manager_accessor_ = method;
}
private:
virtual ~SpeechInputDispatcherHost();
void OnStartRecognition(int render_view_id, int request_id,
const gfx::Rect& element_rect,
const std::string& language,
const std::string& grammar);
void OnCancelRecognition(int render_view_id, int request_id);
void OnStopRecording(int render_view_id, int request_id);
// Returns the speech input manager to forward events to, creating one if
// needed.
SpeechInputManager* manager();
int render_process_id_;
static SpeechInputManager::AccessorMethod* manager_accessor_;
DISALLOW_COPY_AND_ASSIGN(SpeechInputDispatcherHost);
};
} // namespace speech_input
#endif // CHROME_BROWSER_SPEECH_SPEECH_INPUT_DISPATCHER_HOST_H_
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