File indexing completed on 2024-05-12 17:18:50

 /*
   SPDX-FileCopyrightText: 2007 Matthias Kretz <kretz@kde.org>
 
   SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "phononwidget.h"
 
 #include <KLocalizedString>
 #include <phonon/AudioOutput>
 #include <phonon/MediaObject>
 #include <phonon/SeekSlider>
 #include <phonon/VideoWidget>
 
 #include <QShowEvent>
 #include <QStyle>
 #include <QToolButton>
 #include <QVBoxLayout>
 
 class EmbeddedVideoPlayer : public Phonon::VideoWidget
 {
     Q_OBJECT
 
 public:
     EmbeddedVideoPlayer(QWidget *parent = nullptr)
         : Phonon::VideoWidget(parent)
     {
     }
 
     void setSizeHint(const QSize &size)
     {
         m_sizeHint = size;
         updateGeometry();
     }
 
     QSize sizeHint() const override
     {
         return m_sizeHint.isValid() ? m_sizeHint : Phonon::VideoWidget::sizeHint();
     }
 
 private:
     QSize m_sizeHint;
 };
 
 PhononWidget::PhononWidget(QWidget *parent)
     : QWidget(parent)
     , m_url()
     , m_playButton(nullptr)
     , m_pauseButton(nullptr)
     , m_topLayout(nullptr)
     , m_media(nullptr)
     , m_seekSlider(nullptr)
     , m_audioOutput(nullptr)
     , m_videoPlayer(nullptr)
 {
 }
 
 void PhononWidget::setUrl(const QUrl &url, MediaKind kind)
 {
     if (m_url != url) {
         m_url = url;
         m_isVideo = kind == MediaKind::Video;
     }
     if (m_autoPlay) {
         play();
     } else {
         stop();
     }
 }
 
 void PhononWidget::setAutoPlay(bool autoPlay)
 {
     m_autoPlay = autoPlay;
     if (!m_url.isEmpty() && (m_media == nullptr || m_media->state() != Phonon::State::PlayingState) && m_autoPlay && isVisible()) {
         play();
     }
 }
 
 QUrl PhononWidget::url() const
 {
     return m_url;
 }
 
 void PhononWidget::clearUrl()
 {
     m_url.clear();
 }
 
 void PhononWidget::togglePlayback()
 {
     if (m_media && m_media->state() == Phonon::State::PlayingState) {
         m_media->pause();
     } else {
         play();
     }
 }
 
 bool PhononWidget::eventFilter(QObject *object, QEvent *event)
 {
     Q_UNUSED(object)
     if (event->type() == QEvent::MouseButtonPress) {
         const QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
         if (mouseEvent->button() == Qt::LeftButton) {
             // toggle playback
             togglePlayback();
             return true;
         }
     }
     return false;
 }
 
 void PhononWidget::setVideoSize(const QSize &size)
 {
     if (m_videoSize != size) {
         m_videoSize = size;
         applyVideoSize();
     }
 }
 
 QSize PhononWidget::videoSize() const
 {
     return m_videoSize;
 }
 
 void PhononWidget::showEvent(QShowEvent *event)
 {
     if (event->spontaneous()) {
         QWidget::showEvent(event);
         return;
     }
 
     if (!m_topLayout) {
         m_topLayout = new QVBoxLayout(this);
         m_topLayout->setContentsMargins(0, 0, 0, 0);
 
         QHBoxLayout *controlsLayout = new QHBoxLayout();
         controlsLayout->setContentsMargins(0, 0, 0, 0);
         controlsLayout->setSpacing(0);
 
         m_playButton = new QToolButton(this);
         m_pauseButton = new QToolButton(this);
         m_seekSlider = new Phonon::SeekSlider(this);
 
         controlsLayout->addWidget(m_playButton);
         controlsLayout->addWidget(m_pauseButton);
         controlsLayout->addWidget(m_seekSlider);
 
         m_topLayout->addLayout(controlsLayout);
 
         const int smallIconSize = style()->pixelMetric(QStyle::PM_SmallIconSize);
         const QSize buttonSize(smallIconSize, smallIconSize);
 
         m_playButton->setToolTip(i18n("play"));
         m_playButton->setIconSize(buttonSize);
         m_playButton->setIcon(QIcon::fromTheme(QStringLiteral("media-playback-start")));
         m_playButton->setAutoRaise(true);
         connect(m_playButton, &QToolButton::clicked, this, &PhononWidget::play);
 
         m_pauseButton->setToolTip(i18n("pause"));
         m_pauseButton->setIconSize(buttonSize);
         m_pauseButton->setIcon(QIcon::fromTheme(QStringLiteral("media-playback-pause")));
         m_pauseButton->setAutoRaise(true);
         m_pauseButton->hide();
         connect(m_pauseButton, &QToolButton::clicked, this, &PhononWidget::togglePlayback);
 
         m_seekSlider->setIconVisible(false);
 
         // Creating an audio player or video player instance might take up to
         // 2 seconds when doing it the first time. To prevent that the user
         // interface gets noticeable blocked, the creation is delayed until
         // the play button has been pressed (see PhononWidget::play()).
     }
 }
 
 void PhononWidget::hideEvent(QHideEvent *event)
 {
     QWidget::hideEvent(event);
     if (!event->spontaneous()) {
         stop();
     }
 }
 
 void PhononWidget::stateChanged(Phonon::State newstate)
 {
     setUpdatesEnabled(false);
     switch (newstate) {
     case Phonon::PlayingState:
     case Phonon::BufferingState:
         m_playButton->hide();
         m_pauseButton->show();
         break;
     default:
         m_pauseButton->hide();
         m_playButton->show();
         break;
     }
     setUpdatesEnabled(true);
 }
 
 void PhononWidget::play()
 {
     if (!m_media) {
         m_media = new Phonon::MediaObject(this);
         connect(m_media, &Phonon::MediaObject::stateChanged, this, &PhononWidget::stateChanged);
         connect(m_media, &Phonon::MediaObject::finished, this, &PhononWidget::finished);
         m_seekSlider->setMediaObject(m_media);
     }
 
     if (!m_videoPlayer) {
         m_videoPlayer = new EmbeddedVideoPlayer(this);
         m_videoPlayer->setCursor(Qt::PointingHandCursor);
         m_videoPlayer->installEventFilter(this);
         m_topLayout->insertWidget(0, m_videoPlayer);
         Phonon::createPath(m_media, m_videoPlayer);
         applyVideoSize();
     }
 
     if (!m_audioOutput) {
         m_audioOutput = new Phonon::AudioOutput(Phonon::MusicCategory, this);
         Phonon::createPath(m_media, m_audioOutput);
     }
 
     if (m_isVideo) {
         Q_EMIT hasVideoChanged(true);
     }
 
     if (m_url != m_media->currentSource().url()) {
         m_media->setCurrentSource(m_url);
     }
     m_media->play();
 
     m_videoPlayer->setVisible(m_isVideo);
 }
 
 void PhononWidget::finished()
 {
     if (m_isVideo) {
         m_videoPlayer->hide();
         Q_EMIT hasVideoChanged(false);
     }
 }
 
 Phonon::State PhononWidget::state() const
 {
     return m_media == nullptr ? Phonon::State::StoppedState : m_media->state();
 }
 
 void PhononWidget::stop()
 {
     if (m_media) {
         m_media->stop();
         m_videoPlayer->hide();
         Q_EMIT hasVideoChanged(false);
     }
 }
 
 void PhononWidget::applyVideoSize()
 {
     if ((m_videoPlayer) && m_videoSize.isValid()) {
         m_videoPlayer->setSizeHint(m_videoSize);
     }
 }
 
 #include "moc_phononwidget.cpp"
 #include "phononwidget.moc"