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| 1 /* | |
| 2 * Copyright (C) 2010 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 are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #ifndef WebSpeechInputController_h | |
| 32 #define WebSpeechInputController_h | |
| 33 | |
| 34 #include "../platform/WebCommon.h" | |
| 35 | |
| 36 namespace WebKit { | |
| 37 | |
| 38 struct WebRect; | |
| 39 class WebSecurityOrigin; | |
| 40 class WebString; | |
| 41 | |
| 42 // Provides an embedder API called by WebKit. | |
| 43 class WebSpeechInputController { | |
| 44 public: | |
| 45 // Starts speech recognition. Speech will get recorded until the endpointer
detects silence, | |
| 46 // runs to the limit or stopRecording is called. Progress indications and th
e recognized | |
| 47 // text are returned via the listener interface. elementRect is the position | |
| 48 // of the element where the user clicked in the RootView coordinate system. | |
| 49 virtual bool startRecognition(int requestId, const WebRect& elementRect, con
st WebString& language, const WebString& grammar, const WebSecurityOrigin& origi
n) | |
| 50 { | |
| 51 WEBKIT_ASSERT_NOT_REACHED(); | |
| 52 return false; | |
| 53 } | |
| 54 | |
| 55 // Cancels an ongoing recognition and discards any audio recorded so far. No
partial | |
| 56 // recognition results are returned to the listener. | |
| 57 virtual void cancelRecognition(int) { WEBKIT_ASSERT_NOT_REACHED(); } | |
| 58 | |
| 59 // Stops audio recording and performs recognition with the audio recorded un
til now | |
| 60 // (does not discard audio). This is an optional call and is typically invok
ed if the user | |
| 61 // wants to stop recording audio as soon as they finished speaking. Otherwis
e, the speech | |
| 62 // recording 'endpointer' should detect silence in the input and stop record
ing automatically. | |
| 63 // Call startRecognition() to record audio and recognize speech again. | |
| 64 virtual void stopRecording(int) { WEBKIT_ASSERT_NOT_REACHED(); } | |
| 65 | |
| 66 protected: | |
| 67 virtual ~WebSpeechInputController() { } | |
| 68 }; | |
| 69 | |
| 70 } // namespace WebKit | |
| 71 | |
| 72 #endif // WebSpeechInputController_h | |
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