Add Android support for supported locales and voices5.10

This patch adds support for availableLocales() and availableVoices()
to the Android QtSpeech module.

[ChangeLog][Android] Added support for availableLocales,
availableVoices and setting voices on Android.

Task-number: QTBUG-65930
Change-Id: I7457cecb69a07f1e2926c861658a0894cc154a85
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>

3 files changed, 101 insertions, 4 deletions

diff --git a/src/plugins/tts/android/jar/src/org/qtproject/qt5/android/speech/QtTextToSpeech.java b/src/plugins/tts/android/jar/src/org/qtproject/qt5/android/speech/QtTextToSpeech.java
index a6e6091..83332fc 100644
--- a/src/plugins/tts/android/jar/src/org/qtproject/qt5/android/speech/QtTextToSpeech.java
+++ b/src/plugins/tts/android/jar/src/org/qtproject/qt5/android/speech/QtTextToSpeech.java
@@ -50,6 +50,8 @@ import android.util.Log;
 import java.lang.Float;
 import java.util.HashMap;
 import java.util.Locale;
+import java.util.List;
+import java.util.ArrayList;
 
 public class QtTextToSpeech
 {
@@ -60,6 +62,7 @@ public class QtTextToSpeech
 
     private TextToSpeech mTts;
     private final long mId;
+    private boolean mInitialized = false;
     private float mPitch = 1.0f;
     private float mRate = 1.0f;
     private float mVolume = 1.0f;
@@ -70,8 +73,10 @@ public class QtTextToSpeech
         public void onInit(int status) {
             Log.w("QtTextToSpeech", "tts initialized");
             if (status == TextToSpeech.SUCCESS) {
+                mInitialized = true;
                 notifyReady(mId);
             } else {
+                mInitialized = false;
                 notifyError(mId);
             }
         }
@@ -206,4 +211,54 @@ public class QtTextToSpeech
         return (result != TextToSpeech.LANG_NOT_SUPPORTED) && (result != TextToSpeech.LANG_MISSING_DATA);
     }
 
+    public List<Object> getAvailableVoices()
+    {
+        if (mInitialized && android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
+            //Log.d("QtTextToSpeech", "Voices: " + mTts.getVoices());
+            return new ArrayList<Object>(mTts.getVoices());
+        }
+        return new ArrayList<Object>();
+    }
+
+    public List<Locale> getAvailableLocales()
+    {
+        if (mInitialized && android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
+            //Log.d("QtTextToSpeech", "Locales: " + mTts.getAvailableLanguages());
+            return new ArrayList<Locale>(mTts.getAvailableLanguages());
+        }
+        return new ArrayList<Locale>();
+    }
+
+    public Locale getLocale()
+    {
+        //Log.d("QtTextToSpeech", "getLocale: " + mLocale);
+        return mTts.getLanguage();
+    }
+
+    public Object getVoice()
+    {
+        if (mInitialized && android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
+            return mTts.getVoice();
+        }
+        return null;
+    }
+
+    public boolean setVoice(String voiceName)
+    {
+        if (!mInitialized)
+            return false;
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
+             for (android.speech.tts.Voice voice : mTts.getVoices()) {
+                 if (voice.getName().equals(voiceName)) {
+                     int result = mTts.setVoice(voice);
+                     if (result == TextToSpeech.SUCCESS) {
+                         //Log.d("QtTextToSpeech", "setVoice: " + voice);
+                         return true;
+                     }
+                     break;
+                 }
+             }
+        }
+        return false;
+    }
 }
diff --git a/src/plugins/tts/android/src/qtexttospeech_android.cpp b/src/plugins/tts/android/src/qtexttospeech_android.cpp
index a3cac58..b4bb006 100644
--- a/src/plugins/tts/android/src/qtexttospeech_android.cpp
+++ b/src/plugins/tts/android/src/qtexttospeech_android.cpp
@@ -250,7 +250,16 @@ bool QTextToSpeechEngineAndroid::setVolume(double volume)
 
 QVector<QLocale> QTextToSpeechEngineAndroid::availableLocales() const
 {
-    return QVector<QLocale>();
+    auto locales = m_speech.callObjectMethod("getAvailableLocales", "()Ljava/util/List;");
+    int count = locales.callMethod<jint>("size");
+    QVector<QLocale> result;
+    result.reserve(count);
+    for (int i = 0; i < count; ++i) {
+        auto locale = locales.callObjectMethod("get", "(I)Ljava/lang/Object;", i);
+        auto localeName = locale.callObjectMethod<jstring>("toString").toString();
+        result << QLocale(localeName);
+    }
+    return result;
 }
 
 bool QTextToSpeechEngineAndroid::setLocale(const QLocale &locale)
@@ -272,21 +281,53 @@ bool QTextToSpeechEngineAndroid::setLocale(const QLocale &locale)
 
 QLocale QTextToSpeechEngineAndroid::locale() const
 {
+    auto locale = m_speech.callObjectMethod("getLocale", "()Ljava/util/Locale;");
+    if (locale.isValid()) {
+        auto localeName = locale.callObjectMethod<jstring>("toString").toString();
+        return QLocale(localeName);
+    }
     return QLocale();
 }
 
+QVoice QTextToSpeechEngineAndroid::javaVoiceObjectToQVoice(QJNIObjectPrivate &obj) const
+{
+    auto voiceName = obj.callObjectMethod<jstring>("getName").toString();
+    QVoice::Gender gender;
+    if (voiceName.contains(QStringLiteral("#male"))) {
+        gender = QVoice::Male;
+    } else if (voiceName.contains(QStringLiteral("#female"))) {
+        gender = QVoice::Female;
+    } else {
+        gender = QVoice::Unknown;
+    }
+    return createVoice(voiceName, gender, QVoice::Other, voiceName);
+}
+
 QVector<QVoice> QTextToSpeechEngineAndroid::availableVoices() const
 {
-    return QVector<QVoice>();
+    auto voices = m_speech.callObjectMethod("getAvailableVoices", "()Ljava/util/List;");
+    int count = voices.callMethod<jint>("size");
+    QVector<QVoice> result;
+    result.reserve(count);
+    for (int i = 0; i < count; ++i) {
+        auto voice = voices.callObjectMethod("get", "(I)Ljava/lang/Object;", i);
+        result << javaVoiceObjectToQVoice(voice);
+    }
+    return result;
 }
 
-bool QTextToSpeechEngineAndroid::setVoice(const QVoice & /* voice */)
+bool QTextToSpeechEngineAndroid::setVoice(const QVoice &voice)
 {
-    return false;
+    return m_speech.callMethod<jboolean>("setVoice", "(Ljava/lang/String;)Z",
+                                         QJNIObjectPrivate::fromString(voiceData(voice).toString()).object());
 }
 
 QVoice QTextToSpeechEngineAndroid::voice() const
 {
+    auto voice = m_speech.callObjectMethod("getVoice", "()Ljava/lang/Object;");
+    if (voice.isValid()) {
+        return javaVoiceObjectToQVoice(voice);
+    }
     return QVoice();
 }
 
diff --git a/src/plugins/tts/android/src/qtexttospeech_android.h b/src/plugins/tts/android/src/qtexttospeech_android.h
index 60cb32d..94c59f5 100644
--- a/src/plugins/tts/android/src/qtexttospeech_android.h
+++ b/src/plugins/tts/android/src/qtexttospeech_android.h
@@ -81,6 +81,7 @@ public Q_SLOTS:
 
 private:
     void setState(QTextToSpeech::State state);
+    QVoice javaVoiceObjectToQVoice(QJNIObjectPrivate &obj) const;
 
     QJNIObjectPrivate m_speech;
     QTextToSpeech::State m_state;