Add mac hot-switch implementations

SineStriker

2023-12-20 3871bfc5d3aff45e498fa2944c27e6eb5d146c8e

 examples/mainwindow/mainwindow.cpp

@@ -36,12 +36,10 @@
    clockWidget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    setCentralWidget(clockWidget);

    if (QFile qss(QStringLiteral(":/dark-style.qss")); qss.open(QIODevice::ReadOnly | QIODevice::Text)) {
        setStyleSheet(QString::fromUtf8(qss.readAll()));
    }
    loadStyleSheet(Dark);

    setWindowTitle(tr("Example MainWindow"));
    resize(640, 480);
    resize(800, 600);
}

static inline void emulateLeaveEvent(QWidget *widget) {
@@ -105,23 +103,51 @@
}

void MainWindow::installWindowAgent() {
    // 1. Setup window agent
    auto agent = new QWK::WidgetWindowAgent(this);
    if (!agent->setup(this)) {
        qFatal("QWK failed to initialize.");
    }
    agent->setup(this);

    auto menuBar = []() {
    // 2. Construct your title bar
    auto menuBar = [this, agent]() {
        auto menuBar = new QMenuBar();

        // Virtual menu
        auto file = new QMenu(tr("File(&F)"), menuBar);
        file->addAction(new QAction(tr("New(&N)"), menuBar));
        file->addAction(new QAction(tr("Open(&O)"), menuBar));
        file->addSeparator();

        auto edit = new QMenu(tr("Edit(&E)"), menuBar);
        edit->addAction(new QAction(tr("Undo(&U)"), menuBar));
        edit->addAction(new QAction(tr("Redo(&R)"), menuBar));

        // Theme action
        auto darkAction = new QAction(tr("Dark Theme"), menuBar);
        darkAction->setCheckable(true);
        connect(darkAction, &QAction::triggered, this, [this](bool checked) {
            loadStyleSheet(checked ? Dark : Light); //
        });
        connect(this, &MainWindow::themeChanged, darkAction, [this, darkAction]() {
            darkAction->setChecked(currentTheme == Dark); //
        });

        // Agent action
        auto framelessOnAction = new QAction(tr("Enable Frameless"), menuBar);
        framelessOnAction->setCheckable(true);
        framelessOnAction->setChecked(true);
        connect(framelessOnAction, &QAction::triggered, agent, &QWK::WindowAgentBase::setEnabled);
        connect(agent, &QWK::WindowAgentBase::enabledChanged, framelessOnAction,
                &QAction::setChecked);

        // Real menu
        auto settings = new QMenu(tr("Settings(&S)"), menuBar);
        settings->addAction(darkAction);
        settings->addSeparator();
        settings->addAction(framelessOnAction);

        menuBar->addMenu(file);
        menuBar->addMenu(edit);
        menuBar->addMenu(settings);
        return menuBar;
    }();
    menuBar->setObjectName(QStringLiteral("win-menu-bar"));
@@ -130,6 +156,7 @@
    titleLabel->setAlignment(Qt::AlignCenter);
    titleLabel->setObjectName(QStringLiteral("win-title-label"));

#ifndef Q_OS_MAC
    auto iconButton = new QWK::WindowButton();
    iconButton->setObjectName(QStringLiteral("icon-button"));
    iconButton->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
@@ -149,30 +176,38 @@
    closeButton->setObjectName(QStringLiteral("close-button"));
    closeButton->setProperty("system-button", true);
    closeButton->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
#endif

    auto windowBar = new QWK::WindowBar();
#ifndef Q_OS_MAC
    windowBar->setIconButton(iconButton);
    windowBar->setMinButton(minButton);
    windowBar->setMaxButton(maxButton);
    windowBar->setCloseButton(closeButton);
#endif
    windowBar->setMenuBar(menuBar);
    windowBar->setTitleLabel(titleLabel);
    windowBar->setHostWidget(this);

    agent->setTitleBar(windowBar);
#ifndef Q_OS_MAC
    agent->setSystemButton(QWK::WindowAgentBase::WindowIcon, iconButton);
    agent->setSystemButton(QWK::WindowAgentBase::Minimize, minButton);
    agent->setSystemButton(QWK::WindowAgentBase::Maximize, maxButton);
    agent->setSystemButton(QWK::WindowAgentBase::Close, closeButton);
#endif
    agent->setHitTestVisible(menuBar, true);

    setMenuWidget(windowBar);

    // 3. Adds simulated mouse events to the title bar buttons
#ifdef Q_OS_WINDOWS
    // Emulate Window system menu button behaviors
    connect(iconButton, &QAbstractButton::clicked, this, [iconButton, agent] {
    connect(iconButton, &QAbstractButton::clicked, agent, [iconButton, agent] {
        iconButton->setProperty("double-click-close", false);

        // Pick a suitable time threshold
        QTimer::singleShot(75, [iconButton, agent]() {
        QTimer::singleShot(75, agent, [iconButton, agent]() {
            if (iconButton->property("double-click-close").toBool())
                return;
            agent->showSystemMenu(iconButton->mapToGlobal(QPoint{0, iconButton->height()}));
@@ -184,6 +219,7 @@
    });
#endif

#ifndef Q_OS_MAC
    connect(windowBar, &QWK::WindowBar::minimizeRequested, this, &QWidget::showMinimized);
    connect(windowBar, &QWK::WindowBar::maximizeRequested, this, [this, maxButton](bool max) {
        if (max) {
@@ -198,5 +234,17 @@
        emulateLeaveEvent(maxButton);
    });
    connect(windowBar, &QWK::WindowBar::closeRequested, this, &QWidget::close);
    setMenuWidget(windowBar);
#endif
}

void MainWindow::loadStyleSheet(Theme theme) {
    if (!styleSheet().isEmpty() && theme == currentTheme)
        return;
    currentTheme = theme;
    if (QFile qss(theme == Dark ? QStringLiteral(":/dark-style.qss")
                                : QStringLiteral(":/light-style.qss"));
        qss.open(QIODevice::ReadOnly | QIODevice::Text)) {
        setStyleSheet(QString::fromUtf8(qss.readAll()));
        Q_EMIT themeChanged();
    }
}