src/third_party/WebKit/Source/web/SpeechRecognitionClientProxy.h

   1 /*
   2  * Copyright (C) 2012 Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  *  * Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  *  * Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef SpeechRecognitionClientProxy_h
  27 #define SpeechRecognitionClientProxy_h
  28
  29 #include "modules/speech/SpeechRecognitionClient.h"
  30 #include "public/web/WebSpeechRecognizerClient.h"
  31 #include "wtf/Compiler.h"
  32 #include "wtf/PassOwnPtr.h"
  33 #include "wtf/text/WTFString.h"
  34
  35 namespace blink {
  36
  37 class WebSpeechRecognizer;
  38 class WebString;
  39
  40 class SpeechRecognitionClientProxy FINAL : public WebCore::SpeechRecognitionClient, public WebSpeechRecognizerClient {
  41 public:
  42     virtual ~SpeechRecognitionClientProxy();
  43
  44     // Constructing a proxy object with a 0 WebSpeechRecognizer is safe in
  45     // itself, but attempting to call start/stop/abort on it will crash.
  46     static PassOwnPtr<SpeechRecognitionClientProxy> create(WebSpeechRecognizer*);
  47
  48     // WebCore::SpeechRecognitionClient:
  49     virtual void start(WebCore::SpeechRecognition*, const WebCore::SpeechGrammarList*, const String& lang, bool continuous, bool interimResults, unsigned long maxAlternatives) OVERRIDE;
  50     virtual void stop(WebCore::SpeechRecognition*) OVERRIDE;
  51     virtual void abort(WebCore::SpeechRecognition*) OVERRIDE;
  52
  53     // WebSpeechRecognizerClient:
  54     virtual void didStartAudio(const WebSpeechRecognitionHandle&) OVERRIDE;
  55     virtual void didStartSound(const WebSpeechRecognitionHandle&) OVERRIDE;
  56     virtual void didEndSound(const WebSpeechRecognitionHandle&) OVERRIDE;
  57     virtual void didEndAudio(const WebSpeechRecognitionHandle&) OVERRIDE;
  58     virtual void didReceiveResults(const WebSpeechRecognitionHandle&, const WebVector<WebSpeechRecognitionResult>& newFinalResults, const WebVector<WebSpeechRecognitionResult>& currentInterimResults) OVERRIDE;
  59     virtual void didReceiveNoMatch(const WebSpeechRecognitionHandle&, const WebSpeechRecognitionResult&) OVERRIDE;
  60     virtual void didReceiveError(const WebSpeechRecognitionHandle&, const WebString& message, WebSpeechRecognizerClient::ErrorCode) OVERRIDE;
  61     virtual void didStart(const WebSpeechRecognitionHandle&) OVERRIDE;
  62     virtual void didEnd(const WebSpeechRecognitionHandle&) OVERRIDE;
  63
  64 private:
  65     SpeechRecognitionClientProxy(WebSpeechRecognizer*);
  66
  67     WebSpeechRecognizer* m_recognizer;
  68 };
  69
  70 }; // namespace blink
  71
  72 #endif // SpeechRecognitionClientProxy_h