1 // Copyright (c) 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 #include "chrome/browser/speech/tts_android.h"
9 #include "base/android/jni_string.h"
10 #include "base/memory/singleton.h"
11 #include "base/strings/utf_string_conversions.h"
12 #include "chrome/browser/speech/tts_controller.h"
13 #include "jni/TtsPlatformImpl_jni.h"
15 using base::android::AttachCurrentThread;
18 TtsPlatformImpl* TtsPlatformImpl::GetInstance() {
19 return TtsPlatformImplAndroid::GetInstance();
22 TtsPlatformImplAndroid::TtsPlatformImplAndroid()
24 JNIEnv* env = AttachCurrentThread();
26 Java_TtsPlatformImpl_create(env,
27 reinterpret_cast<jint>(this),
28 base::android::GetApplicationContext()));
31 TtsPlatformImplAndroid::~TtsPlatformImplAndroid() {
32 JNIEnv* env = AttachCurrentThread();
33 Java_TtsPlatformImpl_destroy(env, java_ref_.obj());
36 bool TtsPlatformImplAndroid::PlatformImplAvailable() {
40 bool TtsPlatformImplAndroid::Speak(
42 const std::string& utterance,
43 const std::string& lang,
44 const VoiceData& voice,
45 const UtteranceContinuousParameters& params) {
46 JNIEnv* env = AttachCurrentThread();
47 if (!Java_TtsPlatformImpl_isInitialized(env, java_ref_.obj()))
50 jboolean success = Java_TtsPlatformImpl_speak(
53 base::android::ConvertUTF8ToJavaString(env, utterance).Release(),
54 base::android::ConvertUTF8ToJavaString(env, lang).Release(),
55 params.rate, params.pitch, params.volume);
59 utterance_ = utterance;
60 utterance_id_ = utterance_id;
64 bool TtsPlatformImplAndroid::StopSpeaking() {
65 JNIEnv* env = AttachCurrentThread();
66 Java_TtsPlatformImpl_stop(env, java_ref_.obj());
72 void TtsPlatformImplAndroid::Pause() {
76 void TtsPlatformImplAndroid::Resume() {
79 bool TtsPlatformImplAndroid::IsSpeaking() {
80 return (utterance_id_ != 0);
83 void TtsPlatformImplAndroid::GetVoices(
84 std::vector<VoiceData>* out_voices) {
85 JNIEnv* env = AttachCurrentThread();
86 if (!Java_TtsPlatformImpl_isInitialized(env, java_ref_.obj()))
89 int count = Java_TtsPlatformImpl_getVoiceCount(env, java_ref_.obj());
90 for (int i = 0; i < count; ++i) {
91 out_voices->push_back(VoiceData());
92 VoiceData& data = out_voices->back();
94 data.name = base::android::ConvertJavaStringToUTF8(
95 Java_TtsPlatformImpl_getVoiceName(env, java_ref_.obj(), i));
96 data.lang = base::android::ConvertJavaStringToUTF8(
97 Java_TtsPlatformImpl_getVoiceLanguage(env, java_ref_.obj(), i));
98 data.gender = TTS_GENDER_NONE;
99 data.events.insert(TTS_EVENT_START);
100 data.events.insert(TTS_EVENT_END);
101 data.events.insert(TTS_EVENT_ERROR);
105 void TtsPlatformImplAndroid::VoicesChanged(JNIEnv* env, jobject obj) {
106 TtsController::GetInstance()->VoicesChanged();
109 void TtsPlatformImplAndroid::OnEndEvent(
110 JNIEnv* env, jobject obj, jint utterance_id) {
111 SendFinalTtsEvent(utterance_id, TTS_EVENT_END,
112 static_cast<int>(utterance_.size()));
115 void TtsPlatformImplAndroid::OnErrorEvent(
116 JNIEnv* env, jobject obj, jint utterance_id) {
117 SendFinalTtsEvent(utterance_id, TTS_EVENT_ERROR, 0);
120 void TtsPlatformImplAndroid::OnStartEvent(
121 JNIEnv* env, jobject obj, jint utterance_id) {
122 if (utterance_id != utterance_id_)
125 TtsController::GetInstance()->OnTtsEvent(
126 utterance_id_, TTS_EVENT_START, 0, std::string());
129 void TtsPlatformImplAndroid::SendFinalTtsEvent(
130 int utterance_id, TtsEventType event_type, int char_index) {
131 if (utterance_id != utterance_id_)
134 TtsController::GetInstance()->OnTtsEvent(
135 utterance_id_, event_type, char_index, std::string());
141 TtsPlatformImplAndroid* TtsPlatformImplAndroid::GetInstance() {
142 return Singleton<TtsPlatformImplAndroid>::get();
146 bool TtsPlatformImplAndroid::Register(JNIEnv* env) {
147 return RegisterNativesImpl(env);