File indexing completed on 2024-04-21 04:57:32

 /* This file is part of the KDE libraries
    SPDX-FileCopyrightText: 2003 Carsten Pfeiffer <pfeiffer@kde.org>
    SPDX-FileCopyrightText: 2006 Matthias Kretz <kretz@kde.org>
 
    SPDX-License-Identifier: LGPL-2.0-only
 */
 
 #include "kfileaudiopreview.h"
 
 #include <QCheckBox>
 #include <QGroupBox>
 #include <QLayout>
 
 #define TRANSLATION_DOMAIN "kfileaudiopreview6"
 #include <KConfig>
 #include <KConfigGroup>
 #include <KLocalizedString>
 #include <KPluginFactory>
 #include <KSharedConfig>
 
 #include "mediacontrols.h"
 #include <phonon/audiooutput.h>
 #include <phonon/backendcapabilities.h>
 #include <phonon/mediaobject.h>
 #include <phonon/path.h>
 #include <phonon/videowidget.h>
 
 K_PLUGIN_FACTORY(KFileAudioPreviewFactory, registerPlugin<KFileAudioPreview>();)
 
 #define ConfigGroup QStringLiteral("Audio Preview Settings")
 
 ///////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////
 
 using namespace Phonon;
 
 class KFileAudioPreview::Private
 {
 public:
     Private()
         : player(nullptr)
         , audioOutput(nullptr)
         , videoWidget(nullptr)
     {
     }
 
     MediaObject *player;
     AudioOutput *audioOutput;
     VideoWidget *videoWidget;
     MediaControls *controls;
 };
 
 KFileAudioPreview::KFileAudioPreview(QWidget *parent, const QVariantList &)
     : KPreviewWidgetBase(parent)
     , d(new Private)
 {
     setSupportedMimeTypes(BackendCapabilities::availableMimeTypes());
 
     d->audioOutput = new AudioOutput(Phonon::NoCategory, this);
 
     d->videoWidget = new VideoWidget(this);
     d->videoWidget->hide();
 
     d->controls = new MediaControls(this);
     d->controls->setEnabled(false);
     d->controls->setAudioOutput(d->audioOutput);
 
     m_autoPlay = new QCheckBox(i18n("Play &automatically"), this);
     KConfigGroup config(KSharedConfig::openConfig(), ConfigGroup);
     m_autoPlay->setChecked(config.readEntry("Autoplay", false));
     connect(m_autoPlay, &QCheckBox::toggled, this, &KFileAudioPreview::toggleAuto);
 
     QVBoxLayout *layout = new QVBoxLayout(this);
     layout->setContentsMargins(0, 0, 0, 0);
     layout->addWidget(d->videoWidget);
     layout->addWidget(d->controls);
     layout->addWidget(m_autoPlay, 0, Qt::AlignHCenter);
     layout->addStretch();
 }
 
 KFileAudioPreview::~KFileAudioPreview()
 {
     KConfigGroup config(KSharedConfig::openConfig(), ConfigGroup);
     config.writeEntry("Autoplay", m_autoPlay->isChecked());
 
     delete d;
 }
 
 void KFileAudioPreview::stateChanged(Phonon::State newstate, Phonon::State oldstate)
 {
     if (oldstate == Phonon::LoadingState && newstate != Phonon::ErrorState) {
         d->controls->setEnabled(true);
     }
 }
 
 void KFileAudioPreview::showPreview(const QUrl &url)
 {
     d->controls->setEnabled(false);
     if (!d->player) {
         d->player = new MediaObject(this);
         Phonon::createPath(d->player, d->videoWidget);
         Phonon::createPath(d->player, d->audioOutput);
         connect(d->player, &MediaObject::stateChanged, this, &KFileAudioPreview::stateChanged);
         d->videoWidget->setVisible(d->player->hasVideo());
         connect(d->player, SIGNAL(hasVideoChanged(bool)), d->videoWidget, SLOT(setVisible(bool)));
         d->controls->setMediaObject(d->player);
     }
     d->player->setCurrentSource(url);
 
     if (m_autoPlay->isChecked()) {
         d->player->play();
     }
 }
 
 void KFileAudioPreview::clearPreview()
 {
     if (d->player) {
         delete d->player;
         d->player = nullptr;
         d->controls->setEnabled(false);
     }
 }
 
 void KFileAudioPreview::toggleAuto(bool on)
 {
     if (!d->player) {
         return;
     }
 
     if (on && d->controls->isEnabled()) {
         d->player->play();
     } else {
         d->player->stop();
     }
 }
 
 #include "kfileaudiopreview.moc"
 #include "moc_kfileaudiopreview.cpp"