File indexing completed on 2024-12-22 05:25:49

 /*
  * Copyright 2018 Kai Uwe Broulik <kde@broulik.de>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *    http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  */
 
 #include "speechintent.h"
 
 #ifdef Q_OS_ANDROID
 #include <QtAndroid>
 #include <QAndroidActivityResultReceiver>
 #endif
 
 
 #ifdef Q_OS_ANDROID
 
 static int s_receiverRequestCode = 42;
 
 class SpeechIntentResultReceiver : public QAndroidActivityResultReceiver
 {
 public:
     SpeechIntentResultReceiver(SpeechIntent *q);
     void handleActivityResult(int receiverRequestCode, int resultCode, const QAndroidJniObject &data) override;
 
 private:
     SpeechIntent *q;
 
 };
 
 SpeechIntentResultReceiver::SpeechIntentResultReceiver(SpeechIntent *q)
     : q(q)
 {
 
 }
 
 void SpeechIntentResultReceiver::handleActivityResult(int receiverRequestCode, int resultCode, const QAndroidJniObject &data)
 {
     if (!q) {
         return;
     }
 
     if (receiverRequestCode != s_receiverRequestCode) {
         return;
     }
 
     static int resultOk = QAndroidJniObject::getStaticField<jint>("android/app/Activity", "RESULT_OK");
     static int resultCanceled = QAndroidJniObject::getStaticField<jint>("android/app/Activity", "RESULT_CANCELED");
 
     if (resultCode == resultCanceled) {
         emit q->recognitionCanceled();
         return;
     }
 
     if (resultCode != resultOk) {
         emit q->recognitionFailed();
         return;
     }
 
     if (!data.isValid()) { // can this happen?
         emit q->recognitionFailed();
         return;
     }
 
     QAndroidJniObject extraResultsKey = QAndroidJniObject::getStaticObjectField<jstring>("android/speech/RecognizerIntent", "EXTRA_RESULTS");
     Q_ASSERT(extraResultsKey.isValid());
 
     QAndroidJniObject results = data.callObjectMethod("getStringArrayListExtra",
                                                       "(Ljava/lang/String;)Ljava/util/ArrayList;",
                                                       extraResultsKey.object());
 
     if (data.callMethod<jboolean>("isEmpty")) {
         emit q->nothingRecognized();
         return;
     }
 
     QAndroidJniObject firstResult = results.callObjectMethod("get", "(I)Ljava/lang/Object;", static_cast<jint>(0));
 
     const QString text = firstResult.toString();
     if (text.isEmpty()) {
         emit q->nothingRecognized();
         return;
     }
 
     emit q->speechRecognized(text);
 }
 #endif // Q_OS_ANDROID
 
 SpeechIntent::SpeechIntent(QObject *parent) : QObject(parent)
 {
 
 }
 
 SpeechIntent::~SpeechIntent() = default;
 
 QString SpeechIntent::title() const
 {
     return m_title;
 }
 
 void SpeechIntent::setTitle(const QString &title)
 {
     if (m_title != title) {
         m_title = title;
         emit titleChanged(title);
     }
 }
 
 bool SpeechIntent::isSupported() const
 {
 #ifdef Q_OS_ANDROID
     // TODO check for whether the intent class exists or permission or whatever?
     return true;
 #else
     return false;
 #endif
 }
 
 void SpeechIntent::start()
 {
 #ifdef Q_OS_ANDROID
     if (!m_receiver) {
         m_receiver.reset(new SpeechIntentResultReceiver(this));
     }
 
     QAndroidJniObject actionRecognizeSpeech = QAndroidJniObject::getStaticObjectField<jstring>("android/speech/RecognizerIntent", "ACTION_RECOGNIZE_SPEECH");
 
     QAndroidJniObject intent("android/content/Intent", "(Ljava/lang/String;)V", actionRecognizeSpeech.object());
 
     QAndroidJniObject extraLanguageModel = QAndroidJniObject::getStaticObjectField<jstring>("android/speech/RecognizerIntent", "EXTRA_LANGUAGE_MODEL");
     QAndroidJniObject langaugeModelFreeForm = QAndroidJniObject::getStaticObjectField<jstring>("android/speech/RecognizerIntent", "LANGUAGE_MODEL_FREE_FORM");
 
     intent.callObjectMethod("putExtra",
                             "(Ljava/lang/String;Ljava/lang/String;)Landroid/content/Intent;",
                             extraLanguageModel.object(),
                             langaugeModelFreeForm.object());
 
     if (!m_title.isEmpty()) {
         QAndroidJniObject extraPrompt = QAndroidJniObject::getStaticObjectField<jstring>("android/speech/RecognizerIntent", "EXTRA_PROMPT");
 
         intent.callObjectMethod("putExtra",
                                 "(Ljava/lang/String;Ljava/lang/String;)Landroid/content/Intent;",
                                 extraPrompt.object(),
                                 QAndroidJniObject::fromString(m_title).object());
     }
 
     QtAndroid::startActivity(intent, s_receiverRequestCode, m_receiver.data());
 #endif // Q_OS_ANDROID
 }