1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_IMPL_ANDROID_H_
6 #define CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_IMPL_ANDROID_H_
10 #include "base/android/scoped_java_ref.h"
11 #include "base/memory/ref_counted.h"
12 #include "base/memory/scoped_ptr.h"
13 #include "content/browser/speech/speech_recognizer.h"
14 #include "content/public/common/speech_recognition_error.h"
15 #include "content/public/common/speech_recognition_result.h"
19 class SpeechRecognitionEventListener
;
21 class CONTENT_EXPORT SpeechRecognizerImplAndroid
: public SpeechRecognizer
{
23 SpeechRecognizerImplAndroid(SpeechRecognitionEventListener
* listener
,
26 // SpeechRecognizer methods.
27 virtual void StartRecognition(const std::string
& device_id
) OVERRIDE
;
28 virtual void AbortRecognition() OVERRIDE
;
29 virtual void StopAudioCapture() OVERRIDE
;
30 virtual bool IsActive() const OVERRIDE
;
31 virtual bool IsCapturingAudio() const OVERRIDE
;
33 // Called from Java methods via JNI.
34 void OnAudioStart(JNIEnv
* env
, jobject obj
);
35 void OnSoundStart(JNIEnv
* env
, jobject obj
);
36 void OnSoundEnd(JNIEnv
* env
, jobject obj
);
37 void OnAudioEnd(JNIEnv
* env
, jobject obj
);
38 void OnRecognitionResults(JNIEnv
* env
, jobject obj
, jobjectArray strings
,
39 jfloatArray floats
, jboolean interim
);
40 void OnRecognitionError(JNIEnv
* env
, jobject obj
, jint error
);
41 void OnRecognitionEnd(JNIEnv
* env
, jobject obj
);
43 static bool RegisterSpeechRecognizer(JNIEnv
* env
);
48 STATE_CAPTURING_AUDIO
,
49 STATE_AWAITING_FINAL_RESULT
52 void StartRecognitionOnUIThread(
53 std::string language
, bool continuous
, bool interim_results
);
54 void OnRecognitionResultsOnIOThread(SpeechRecognitionResults
const &results
);
56 virtual ~SpeechRecognizerImplAndroid();
58 base::android::ScopedJavaGlobalRef
<jobject
> j_recognition_
;
61 DISALLOW_COPY_AND_ASSIGN(SpeechRecognizerImplAndroid
);
64 } // namespace content
66 #endif // CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_IMPL_ANDROID_H_