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Unified Diff: content/renderer/speech_recognition_dispatcher.h

Issue 10273006: Introduced SpeechRecognitionDispatcher(Host) classes, handling dispatch of IPC messages for continu… (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Rebased (because of CL1.11 reverted and recommitted) Created 8 years, 7 months ago
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Index: content/renderer/speech_recognition_dispatcher.h
diff --git a/content/renderer/speech_recognition_dispatcher.h b/content/renderer/speech_recognition_dispatcher.h
new file mode 100644
index 0000000000000000000000000000000000000000..3e3b1416d75fa49963aa7946af0769e4a97876f5
--- /dev/null
+++ b/content/renderer/speech_recognition_dispatcher.h
@@ -0,0 +1,70 @@
+// 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 CONTENT_RENDERER_SPEECH_RECOGNITION_DISPATCHER_H_
+#define CONTENT_RENDERER_SPEECH_RECOGNITION_DISPATCHER_H_
+#pragma once
+
+#include <map>
+
+#include "base/basictypes.h"
+#include "content/public/renderer/render_view_observer.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebVector.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebSpeechRecognitionHandle.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebSpeechRecognizer.h"
+
+class RenderViewImpl;
+
+namespace content {
+struct SpeechRecognitionError;
+struct SpeechRecognitionResult;
+}
+
+// SpeechRecognitionDispatcher is a delegate for methods used by WebKit for
+// scripted JS speech APIs. It's the complement of
+// SpeechRecognitionDispatcherHost (owned by RenderViewHost).
+class SpeechRecognitionDispatcher : public content::RenderViewObserver,
+ public WebKit::WebSpeechRecognizer {
+ public:
+ explicit SpeechRecognitionDispatcher(RenderViewImpl* render_view);
+ virtual ~SpeechRecognitionDispatcher();
+
+ private:
+ // RenderViewObserver implementation.
+ virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+
+ // WebKit::WebSpeechRecognizer implementation.
+ virtual void start(const WebKit::WebSpeechRecognitionHandle&,
+ const WebKit::WebSpeechRecognitionParams&,
+ WebKit::WebSpeechRecognizerClient*) OVERRIDE;
+ virtual void stop(const WebKit::WebSpeechRecognitionHandle&,
+ WebKit::WebSpeechRecognizerClient*) OVERRIDE;
+ virtual void abort(const WebKit::WebSpeechRecognitionHandle&,
+ WebKit::WebSpeechRecognizerClient*) OVERRIDE;
+
+ void OnRecognitionStarted(int request_id);
+ void OnAudioStarted(int request_id);
+ void OnSoundStarted(int request_id);
+ void OnSoundEnded(int request_id);
+ void OnAudioEnded(int request_id);
+ void OnErrorOccurred(int request_id,
+ const content::SpeechRecognitionError& error);
+ void OnRecognitionEnded(int request_id);
+ void OnResultRetrieved(int request_id,
+ const content::SpeechRecognitionResult& result);
+
+ int GetIDForHandle(const WebKit::WebSpeechRecognitionHandle& handle);
+ const WebKit::WebSpeechRecognitionHandle& GetHandleFromID(int handle_id);
+
+ // The WebKit client class that we use to send events back to the JS world.
+ WebKit::WebSpeechRecognizerClient* recognizer_client_;
+
+ typedef std::map<int, WebKit::WebSpeechRecognitionHandle> HandleMap;
+ HandleMap handle_map_;
+ int next_id_;
+
+ DISALLOW_COPY_AND_ASSIGN(SpeechRecognitionDispatcher);
+};
+
+#endif // CONTENT_RENDERER_SPEECH_RECOGNITION_DISPATCHER_H_
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