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31 #ifndef WebSpeechInputListener_h
32 #define WebSpeechInputListener_h
34 #include "WebSpeechInputResult.h"
40 // Provides a WebKit API called by the embedder.
41 // A typical sequence of calls to the listener would be
42 // 1 call to didCompleteRecording
43 // 0 or more calls to setRecognitionResult
44 // 1 call to didCompleteRecognition
45 class WebSpeechInputListener {
47 // Informs that audio recording has completed and recognition is underway. This gets invoked
48 // irrespective of whether recording was stopped automatically by the 'endpointer' or if
49 // WebSpeechInputController::stopRecording() was called.
50 // Typically after this call the listener would update the UI to reflect that recognition is
52 virtual void didCompleteRecording(int) { BLINK_ASSERT_NOT_REACHED(); }
54 // Gives results from speech recognition, either partial or the final results.
55 // This method can potentially get called multiple times if there are partial results
56 // available as the user keeps speaking. If the speech could not be recognized properly
57 // or if there was any other errors in the process, this method may never be called.
58 virtual void setRecognitionResult(int, const WebSpeechInputResultArray&) { BLINK_ASSERT_NOT_REACHED(); }
60 // Informs that speech recognition has completed. This gets invoked irrespective of whether
61 // recognition was succesful or not, whether setRecognitionResult() was invoked or not. The
62 // handler typically frees up any temporary resources allocated and waits for the next speech
63 // recognition request.
64 virtual void didCompleteRecognition(int) { BLINK_ASSERT_NOT_REACHED(); }
67 ~WebSpeechInputListener() { }
72 #endif // WebSpeechInputListener_h