File indexing completed on 2024-04-28 16:52:24

 /*
  *  SPDX-FileCopyrightText: 2014 Antonis Tsiapaliokas <antonis.tsiapaliokas@kde.org>
  *  SPDX-FileCopyrightText: 2022 Devin Lin <devin@kde.org>
  *
  *  SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #include "windowutil.h"
 
 #include <QGuiApplication>
 
 constexpr int ACTIVE_WINDOW_UPDATE_INVERVAL = 0;
 
 WindowUtil::WindowUtil(QObject *parent)
     : QObject{parent}
     , m_activeWindowTimer{new QTimer{this}}
 {
     // use 0 tick timer to update active window to ensure window state has finished changing
     m_activeWindowTimer->setSingleShot(true);
     m_activeWindowTimer->setInterval(ACTIVE_WINDOW_UPDATE_INVERVAL);
     connect(m_activeWindowTimer, &QTimer::timeout, this, &WindowUtil::updateActiveWindow);
 
     connect(this, &WindowUtil::activeWindowChanged, this, &WindowUtil::updateActiveWindowIsShell);
 
     initWayland();
 }
 
 WindowUtil *WindowUtil::instance()
 {
     static WindowUtil *inst = new WindowUtil();
     return inst;
 }
 
 bool WindowUtil::isShowingDesktop() const
 {
     return m_showingDesktop;
 }
 
 bool WindowUtil::allWindowsMinimized() const
 {
     return m_allWindowsMinimized;
 }
 
 bool WindowUtil::allWindowsMinimizedExcludingShell() const
 {
     return m_allWindowsMinimizedExcludingShell;
 }
 
 bool WindowUtil::activeWindowIsShell() const
 {
     return m_activeWindowIsShell;
 }
 
 void WindowUtil::initWayland()
 {
     if (!QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive)) {
         qWarning() << "Plasma Mobile must use wayland! The current platform detected is:" << QGuiApplication::platformName();
         return;
     }
 
     using namespace KWayland::Client;
     ConnectionThread *connection = ConnectionThread::fromApplication(this);
 
     if (!connection) {
         return;
     }
 
     auto *registry = new Registry(this);
     registry->create(connection);
 
     connect(registry, &Registry::plasmaWindowManagementAnnounced, this, [this, registry](quint32 name, quint32 version) {
         m_windowManagement = registry->createPlasmaWindowManagement(name, version, this);
         qRegisterMetaType<QVector<int>>("QVector<int>");
 
         connect(m_windowManagement, &KWayland::Client::PlasmaWindowManagement::windowCreated, this, [this](KWayland::Client::PlasmaWindow *window) {
             Q_EMIT windowCreated(window);
         });
         connect(m_windowManagement, &KWayland::Client::PlasmaWindowManagement::windowCreated, this, &WindowUtil::windowCreatedSlot);
 
         connect(m_windowManagement, &PlasmaWindowManagement::showingDesktopChanged, this, &WindowUtil::updateShowingDesktop);
         connect(m_windowManagement, &PlasmaWindowManagement::activeWindowChanged, m_activeWindowTimer, qOverload<>(&QTimer::start));
 
         m_activeWindowTimer->start();
     });
 
     registry->setup();
     connection->roundtrip();
 }
 
 void WindowUtil::updateActiveWindow()
 {
     if (!m_windowManagement || m_activeWindow == m_windowManagement->activeWindow()) {
         return;
     }
 
     using namespace KWayland::Client;
     if (m_activeWindow) {
         disconnect(m_activeWindow.data(), &PlasmaWindow::closeableChanged, this, &WindowUtil::hasCloseableActiveWindowChanged);
         disconnect(m_activeWindow.data(), &PlasmaWindow::unmapped, this, &WindowUtil::forgetActiveWindow);
     }
     m_activeWindow = m_windowManagement->activeWindow();
     Q_EMIT activeWindowChanged();
 
     if (m_activeWindow) {
         connect(m_activeWindow.data(), &PlasmaWindow::closeableChanged, this, &WindowUtil::hasCloseableActiveWindowChanged);
         connect(m_activeWindow.data(), &PlasmaWindow::unmapped, this, &WindowUtil::forgetActiveWindow);
     }
 
     // loop through windows
     bool newAllMinimized = true;
     bool newAllMinimizedExcludingShell = true;
     for (auto *w : m_windowManagement->windows()) {
         if (!w->isMinimized() && !w->skipTaskbar() && !w->isFullscreen()) {
             newAllMinimized = false;
 
             if (w->appId() != QStringLiteral("org.kde.plasmashell")) {
                 newAllMinimizedExcludingShell = false;
             }
         }
     }
 
     if (newAllMinimized != m_allWindowsMinimized) {
         m_allWindowsMinimized = newAllMinimized;
         Q_EMIT allWindowsMinimizedChanged();
     }
     if (newAllMinimizedExcludingShell != m_allWindowsMinimizedExcludingShell) {
         m_allWindowsMinimizedExcludingShell = newAllMinimizedExcludingShell;
         Q_EMIT allWindowsMinimizedExcludingShellChanged();
     }
 
     // TODO: connect to closeableChanged, not needed right now as KWin doesn't provide this changeable
     Q_EMIT hasCloseableActiveWindowChanged();
 }
 
 bool WindowUtil::hasCloseableActiveWindow() const
 {
     return m_activeWindow && m_activeWindow->isCloseable() /*&& !m_activeWindow->isMinimized()*/;
 }
 
 void WindowUtil::closeActiveWindow()
 {
     if (m_activeWindow) {
         m_activeWindow->requestClose();
     }
 }
 
 void WindowUtil::requestShowingDesktop(bool showingDesktop)
 {
     if (!m_windowManagement) {
         return;
     }
     m_windowManagement->setShowingDesktop(showingDesktop);
 }
 
 void WindowUtil::minimizeAll()
 {
     if (!m_windowManagement) {
         qWarning() << "Ignoring request for minimizing all windows since window management hasn't been announced yet!";
         return;
     }
 
     for (auto *w : m_windowManagement->windows()) {
         if (!w->isMinimized()) {
             w->requestToggleMinimized();
         }
     }
 }
 
 void WindowUtil::unsetAllMinimizedGeometries(QQuickItem *parent)
 {
     if (!m_windowManagement) {
         qWarning() << "Ignoring request for minimizing all windows since window management hasn't been announced yet!";
         return;
     }
 
     if (!parent) {
         return;
     }
 
     QWindow *window = parent->window();
     if (!window) {
         return;
     }
 
     KWayland::Client::Surface *surface = KWayland::Client::Surface::fromWindow(window);
     if (!surface) {
         return;
     }
 
     for (auto *w : m_windowManagement->windows()) {
         w->unsetMinimizedGeometry(surface);
     }
 }
 
 void WindowUtil::updateShowingDesktop(bool showing)
 {
     if (showing != m_showingDesktop) {
         m_showingDesktop = showing;
         Q_EMIT showingDesktopChanged(m_showingDesktop);
     }
 }
 
 void WindowUtil::updateActiveWindowIsShell()
 {
     if (m_activeWindow) {
         if (m_activeWindow->appId() == QStringLiteral("org.kde.plasmashell") && !m_activeWindowIsShell) {
             m_activeWindowIsShell = true;
             Q_EMIT activeWindowIsShellChanged();
         } else if (m_activeWindow->appId() != QStringLiteral("org.kde.plasmashell") && m_activeWindowIsShell) {
             m_activeWindowIsShell = false;
             Q_EMIT activeWindowIsShellChanged();
         }
     }
 }
 
 void WindowUtil::forgetActiveWindow()
 {
     using namespace KWayland::Client;
     if (m_activeWindow) {
         disconnect(m_activeWindow.data(), &PlasmaWindow::closeableChanged, this, &WindowUtil::hasCloseableActiveWindowChanged);
         disconnect(m_activeWindow.data(), &PlasmaWindow::unmapped, this, &WindowUtil::forgetActiveWindow);
     }
     m_activeWindow.clear();
     Q_EMIT hasCloseableActiveWindowChanged();
 }
 
 QList<KWayland::Client::PlasmaWindow *> WindowUtil::windowsFromStorageId(const QString &storageId) const
 {
     if (!m_windows.contains(storageId)) {
         return {};
     }
     return m_windows[storageId];
 }
 
 void WindowUtil::windowCreatedSlot(KWayland::Client::PlasmaWindow *window)
 {
     QString storageId = window->appId() + QStringLiteral(".desktop");
 
     // ignore empty windows
     if (storageId == ".desktop" || storageId == "org.kde.plasmashell.desktop") {
         return;
     }
 
     if (!m_windows.contains(storageId)) {
         m_windows[storageId] = {};
     }
     m_windows[storageId].push_back(window);
 
     // listen for window close
     connect(window, &KWayland::Client::PlasmaWindow::unmapped, this, [this, storageId]() {
         m_windows.remove(storageId);
         Q_EMIT windowChanged(storageId);
     });
 
     Q_EMIT windowChanged(storageId);
 }