MpvControls.cc

#include "MpvControls.hh"
#include "MpvContainer.hh"

using namespace Vivy;

MpvControls::MpvControls(MpvContainer *passedContainer, QWidget *parent) noexcept
    : QWidget(parent)
    , mpv(passedContainer)
{
    auto *progressBar          = new QSlider(this);
    auto *togglePlaybackButton = new QPushButton(playIcon, "", this); // Be default MPV is paused
    auto *reCreateMpvButton    = new QPushButton(
        reCreateMpvIcon, "", this); // Recreate the MPV context if something went wrong

    progressBar->setTracking(false);
    progressBar->setOrientation(Qt::Horizontal);

    mpv->registerMpvDurationCallback([progressBar, this](double time) noexcept -> void {
        timePosition = chrono::seconds::zero();
        timeDuration = chrono::seconds(static_cast<long>(time));
        progressBar->setMaximum(static_cast<int>(timeDuration.count()));
        progressBar->setValue(0);
    });

    mpv->registerMpvTimeCallback([progressBar, this](double time) noexcept -> void {
        if (!progressBar->isSliderDown()) {
            // The user is not pressing the slider
            timePosition = chrono::seconds(static_cast<long>(time));
            progressBar->setValue(static_cast<int>(timePosition.count()));
        }
    });

    connect(progressBar, &QAbstractSlider::sliderMoved, this,
            [this](int value) noexcept -> void { askedSliderPosition = value; });

    connect(progressBar, &QAbstractSlider::actionTriggered, this,
            [progressBar](int action) noexcept -> void {
                switch (static_cast<QAbstractSlider::SliderAction>(action)) {
                case QAbstractSlider::SliderSingleStepAdd:
                case QAbstractSlider::SliderSingleStepSub:
                case QAbstractSlider::SliderPageStepAdd:
                case QAbstractSlider::SliderPageStepSub:
                    progressBar->setSliderPosition(progressBar->value());
                    break;

                case QAbstractSlider::SliderAction::SliderMove:
                case QAbstractSlider::SliderNoAction:
                case QAbstractSlider::SliderToMinimum:
                case QAbstractSlider::SliderToMaximum: break;
                }
            });

    connect(progressBar, &QAbstractSlider::sliderReleased, this, [this]() noexcept -> void {
        qDebug() << "Slider set to" << askedSliderPosition << "max was" << timeDuration.count();
        timePosition = chrono::seconds(askedSliderPosition);
        mpv->seekInFile(timePosition);
    });

    connect(togglePlaybackButton, &QAbstractButton::clicked, mpv, &MpvContainer::mpvTogglePlayback);
    connect(reCreateMpvButton, &QAbstractButton::clicked, mpv, &MpvContainer::reCreateMpvContext);
    connect(mpv, &MpvContainer::mpvPlaybackToggled, this,
            [this, togglePlaybackButton](bool isPlay) noexcept -> void {
                togglePlaybackButton->setIcon(isPlay ? pauseIcon : playIcon);
            });

    auto *centralLayout = new QHBoxLayout(this);
    centralLayout->addWidget(togglePlaybackButton);
    centralLayout->addWidget(reCreateMpvButton);
    centralLayout->addWidget(progressBar, 1);
    setLayout(centralLayout);
}