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157 lines
4.7 KiB
C++
157 lines
4.7 KiB
C++
#include "qdbusmenubar_p.h"
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QT_BEGIN_NAMESPACE
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/* note: do not change these to QStringLiteral;
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we are unloaded before QtDBus is done using the strings.
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*/
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#define REGISTRAR_SERVICE QLatin1String("com.canonical.AppMenu.Registrar")
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#define REGISTRAR_PATH QLatin1String("/com/canonical/AppMenu/Registrar")
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QDBusMenuBar::QDBusMenuBar()
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: QPlatformMenuBar()
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, m_menu(new QDBusPlatformMenu())
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, m_menuAdaptor(new QDBusMenuAdaptor(m_menu))
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{
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QDBusMenuItem::registerDBusTypes();
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connect(m_menu, &QDBusPlatformMenu::propertiesUpdated,
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m_menuAdaptor, &QDBusMenuAdaptor::ItemsPropertiesUpdated);
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connect(m_menu, &QDBusPlatformMenu::updated,
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m_menuAdaptor, &QDBusMenuAdaptor::LayoutUpdated);
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// This signal is new in Qt 5.8 but distros might have backported it, hence a runtime look-up
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if (m_menu->metaObject()->indexOfSignal("popupRequested(int,uint)") != -1) {
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connect(m_menu, SIGNAL(popupRequested(int,uint)), m_menuAdaptor, SIGNAL(ItemActivationRequested(int,uint)));
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}
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}
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QDBusMenuBar::~QDBusMenuBar()
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{
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unregisterMenuBar();
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delete m_menuAdaptor;
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delete m_menu;
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qDeleteAll(m_menuItems);
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}
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QDBusPlatformMenuItem *QDBusMenuBar::menuItemForMenu(QPlatformMenu *menu)
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{
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if (!menu)
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return nullptr;
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quintptr tag = menu->tag();
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const auto it = m_menuItems.constFind(tag);
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if (it != m_menuItems.cend()) {
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return *it;
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} else {
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QDBusPlatformMenuItem *item = new QDBusPlatformMenuItem;
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updateMenuItem(item, menu);
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m_menuItems.insert(tag, item);
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return item;
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}
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}
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void QDBusMenuBar::updateMenuItem(QDBusPlatformMenuItem *item, QPlatformMenu *menu)
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{
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const QDBusPlatformMenu *ourMenu = qobject_cast<const QDBusPlatformMenu *>(menu);
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item->setText(ourMenu->text());
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item->setIcon(ourMenu->icon());
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item->setEnabled(ourMenu->isEnabled());
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item->setVisible(ourMenu->isVisible());
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item->setMenu(menu);
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}
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void QDBusMenuBar::insertMenu(QPlatformMenu *menu, QPlatformMenu *before)
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{
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QDBusPlatformMenuItem *menuItem = menuItemForMenu(menu);
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QDBusPlatformMenuItem *beforeItem = menuItemForMenu(before);
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m_menu->insertMenuItem(menuItem, beforeItem);
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m_menu->emitUpdated();
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}
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void QDBusMenuBar::removeMenu(QPlatformMenu *menu)
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{
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QDBusPlatformMenuItem *menuItem = menuItemForMenu(menu);
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m_menu->removeMenuItem(menuItem);
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m_menu->emitUpdated();
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}
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void QDBusMenuBar::syncMenu(QPlatformMenu *menu)
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{
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QDBusPlatformMenuItem *menuItem = menuItemForMenu(menu);
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updateMenuItem(menuItem, menu);
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}
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void QDBusMenuBar::handleReparent(QWindow *newParentWindow)
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{
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if (newParentWindow == m_window) {
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return;
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}
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QWindow *oldWindow = m_window;
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unregisterMenuBar();
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m_window = newParentWindow;
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if (newParentWindow) {
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registerMenuBar();
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}
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emit windowChanged(newParentWindow, oldWindow);
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}
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QPlatformMenu *QDBusMenuBar::menuForTag(quintptr tag) const
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{
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QDBusPlatformMenuItem *menuItem = m_menuItems.value(tag);
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if (menuItem)
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return const_cast<QPlatformMenu *>(menuItem->menu());
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return nullptr;
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}
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QPlatformMenu *QDBusMenuBar::createMenu() const
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{
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return new QDBusPlatformMenu;
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}
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void QDBusMenuBar::registerMenuBar()
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{
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static uint menuBarId = 0;
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if (!m_window) {
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qWarning("Cannot register window menu without window");
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return;
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}
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QDBusConnection connection = QDBusConnection::sessionBus();
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m_objectPath = QStringLiteral("/MenuBar/%1").arg(++menuBarId);
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if (!connection.registerObject(m_objectPath, m_menu))
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return;
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QDBusMenuRegistrarInterface registrar(REGISTRAR_SERVICE, REGISTRAR_PATH, connection, this);
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QDBusPendingReply<> r = registrar.RegisterWindow(static_cast<uint>(window()->winId()), QDBusObjectPath(m_objectPath));
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r.waitForFinished();
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if (r.isError()) {
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qWarning("Failed to register window menu, reason: %s (\"%s\")",
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qUtf8Printable(r.error().name()), qUtf8Printable(r.error().message()));
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connection.unregisterObject(m_objectPath);
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}
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}
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void QDBusMenuBar::unregisterMenuBar()
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{
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QDBusConnection connection = QDBusConnection::sessionBus();
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if (m_window) {
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QDBusMenuRegistrarInterface registrar(REGISTRAR_SERVICE, REGISTRAR_PATH, connection, this);
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QDBusPendingReply<> r = registrar.UnregisterWindow(static_cast<uint>(window()->winId()));
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r.waitForFinished();
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if (r.isError())
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qWarning("Failed to unregister window menu, reason: %s (\"%s\")",
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qUtf8Printable(r.error().name()), qUtf8Printable(r.error().message()));
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}
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if (!m_objectPath.isEmpty())
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connection.unregisterObject(m_objectPath);
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}
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QT_END_NAMESPACE
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