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31 #ifndef SpeechInputClient_h
32 #define SpeechInputClient_h
34 #include <wtf/Forward.h>
36 #if ENABLE(INPUT_SPEECH)
42 class SpeechInputListener;
45 // Provides an interface for SpeechInput to call into the embedder.
46 class SpeechInputClient {
48 // This is the first call made by a listener, registering itself for future callbacks.
49 // When the listener no longer needs speech input (for e.g. when it gets destroyed),
50 // it should set a null listener to stop receiving callbacks.
51 // The client does not take ownership of the pointer.
52 virtual void setListener(SpeechInputListener*) = 0;
54 // Starts speech recognition and audio recording.
55 virtual bool startRecognition(int requestId, const IntRect& elementRect, const AtomicString& language, const String& grammar, SecurityOrigin*) = 0;
57 // Stops audio recording and performs recognition with the audio recorded until now
58 // (does not discard audio).
59 virtual void stopRecording(int requestId) = 0;
61 // Cancels an ongoing recognition and discards any audio recorded so far. No partial
62 // recognition results are returned to the listener.
63 virtual void cancelRecognition(int requestId) = 0;
66 virtual ~SpeechInputClient() { }
69 void provideSpeechInputTo(Page*, SpeechInputClient*);
71 } // namespace WebCore
73 #endif // ENABLE(INPUT_SPEECH)
75 #endif // SpeechInputClient_h