File indexing completed on 2024-09-01 05:13:42

 /*
  *   SPDX-FileCopyrightText: 2021 Aleix Pol Gonzalez <aleixpol@blue-systems.com>
  *   SPDX-FileCopyrightText: 2018 Drew DeVault <sir@cmpwn.com>
  *
  *   SPDX-License-Identifier: LGPL-3.0-or-later
  */
 
 #include "interfaces/window.h"
 #include "layershellqt_logging.h"
 #include "qwaylandlayersurface_p.h"
 #include "qwaylandxdgactivationv1_p.h"
 
 #include <QtWaylandClient/private/qwaylandscreen_p.h>
 #include <QtWaylandClient/private/qwaylandsurface_p.h>
 #include <QtWaylandClient/private/qwaylandwindow_p.h>
 
 #include <QGuiApplication>
 
 namespace LayerShellQt
 {
 QWaylandLayerSurface::QWaylandLayerSurface(QWaylandLayerShellIntegration *shell, QtWaylandClient::QWaylandWindow *window)
     : QtWaylandClient::QWaylandShellSurface(window)
     , QtWayland::zwlr_layer_surface_v1()
     , m_shell(shell)
     , m_interface(Window::get(window->window()))
 {
     wl_output *output = nullptr;
     if (m_interface->screenConfiguration() == Window::ScreenFromQWindow) {
         auto waylandScreen = dynamic_cast<QtWaylandClient::QWaylandScreen *>(window->window()->screen()->handle());
         // Qt will always assign a screen to a window, but if the compositor has no screens available a dummy QScreen object is created
         // this will not cast to a QWaylandScreen
         if (!waylandScreen) {
             qCWarning(LAYERSHELLQT) << "Creating a layer shell for placeholder screen. This will be positioned incorrectly";
         } else {
             output = waylandScreen->output();
         }
     }
     init(shell->get_layer_surface(window->waylandSurface()->object(), output, m_interface->layer(), m_interface->scope()));
     connect(m_interface, &Window::layerChanged, this, [this]() {
         setLayer(m_interface->layer());
     });
 
     set_anchor(m_interface->anchors());
     connect(m_interface, &Window::anchorsChanged, this, [this]() {
         set_anchor(m_interface->anchors());
     });
     setExclusiveZone(m_interface->exclusionZone());
     connect(m_interface, &Window::exclusionZoneChanged, this, [this]() {
         setExclusiveZone(m_interface->exclusionZone());
     });
     setExclusiveEdge(m_interface->exclusiveEdge());
     connect(m_interface, &Window::exclusiveEdgeChanged, this, [this]() {
         setExclusiveEdge(m_interface->exclusiveEdge());
     });
 
     setMargins(m_interface->margins());
     connect(m_interface, &Window::marginsChanged, this, [this]() {
         setMargins(m_interface->margins());
     });
 
     setKeyboardInteractivity(m_interface->keyboardInteractivity());
     connect(m_interface, &Window::keyboardInteractivityChanged, this, [this]() {
         setKeyboardInteractivity(m_interface->keyboardInteractivity());
     });
 
     QSize size = window->surfaceSize();
     const Window::Anchors anchors = m_interface->anchors();
     if ((anchors & Window::AnchorLeft) && (anchors & Window::AnchorRight)) {
         size.setWidth(0);
     }
     if ((anchors & Window::AnchorTop) && (anchors & Window::AnchorBottom)) {
         size.setHeight(0);
     }
     if (size.isValid() && size != QSize(0, 0)) {
         set_size(size.width(), size.height());
     }
 }
 
 QWaylandLayerSurface::~QWaylandLayerSurface()
 {
     destroy();
 }
 
 void QWaylandLayerSurface::zwlr_layer_surface_v1_closed()
 {
     if (m_interface->closeOnDismissed()) {
         window()->window()->close();
     }
 }
 
 void QWaylandLayerSurface::zwlr_layer_surface_v1_configure(uint32_t serial, uint32_t width, uint32_t height)
 {
     ack_configure(serial);
     m_pendingSize = QSize(width, height);
 
     if (!m_configured) {
         m_configured = true;
         window()->resizeFromApplyConfigure(m_pendingSize);
 #if QT_VERSION < QT_VERSION_CHECK(6, 7, 0)
         window()->handleExpose(QRect(QPoint(), m_pendingSize));
 #else
         window()->sendRecursiveExposeEvent();
 #endif
     } else {
         // Later configures are resizes, so we have to queue them up for a time when we
         // are not painting to the window.
         window()->applyConfigureWhenPossible();
     }
 }
 
 void QWaylandLayerSurface::attachPopup(QtWaylandClient::QWaylandShellSurface *popup)
 {
     std::any anyRole = popup->surfaceRole();
 
     if (auto role = std::any_cast<::xdg_popup *>(&anyRole)) {
         get_popup(*role);
     } else {
         qCWarning(LAYERSHELLQT) << "Cannot attach popup of unknown type";
     }
 }
 
 void QWaylandLayerSurface::applyConfigure()
 {
     window()->resizeFromApplyConfigure(m_pendingSize);
 }
 
 void QWaylandLayerSurface::setAnchor(uint anchor)
 {
     set_anchor(anchor);
     setWindowGeometry(window()->windowContentGeometry());
 }
 
 void QWaylandLayerSurface::setExclusiveZone(int32_t zone)
 {
     set_exclusive_zone(zone);
 }
 
 void QWaylandLayerSurface::setExclusiveEdge(uint32_t edge)
 {
     if (zwlr_layer_surface_v1_get_version(object()) >= ZWLR_LAYER_SURFACE_V1_SET_EXCLUSIVE_EDGE_SINCE_VERSION) {
         set_exclusive_edge(edge);
     }
 }
 
 void QWaylandLayerSurface::setMargins(const QMargins &margins)
 {
     set_margin(margins.top(), margins.right(), margins.bottom(), margins.left());
 }
 
 void QWaylandLayerSurface::setKeyboardInteractivity(uint32_t interactivity)
 {
     set_keyboard_interactivity(interactivity);
 }
 
 void QWaylandLayerSurface::setLayer(uint32_t layer)
 {
     if (zwlr_layer_surface_v1_get_version(object()) >= ZWLR_LAYER_SURFACE_V1_SET_LAYER_SINCE_VERSION)
         set_layer(layer);
 }
 
 void QWaylandLayerSurface::setWindowGeometry(const QRect &geometry)
 {
     const bool horizontallyConstrained = m_interface->anchors().testFlags({Window::AnchorLeft, Window::AnchorRight});
     const bool verticallyConstrained = m_interface->anchors().testFlags({Window::AnchorTop, Window::AnchorBottom});
 
     QSize size = geometry.size();
     if (horizontallyConstrained) {
         size.setWidth(0);
     }
     if (verticallyConstrained) {
         size.setHeight(0);
     }
     set_size(size.width(), size.height());
 }
 
 bool QWaylandLayerSurface::requestActivate()
 {
     QWaylandXdgActivationV1 *activation = m_shell->activation();
     if (!activation->isActive()) {
         return false;
     }
     if (!m_activationToken.isEmpty()) {
         activation->activate(m_activationToken, window()->wlSurface());
         m_activationToken = {};
         return true;
     } else {
         const auto focusWindow = QGuiApplication::focusWindow();
         const auto wlWindow = focusWindow ? static_cast<QtWaylandClient::QWaylandWindow*>(focusWindow->handle()) : window();
         if (const auto seat = wlWindow->display()->lastInputDevice()) {
             const auto tokenProvider = activation->requestXdgActivationToken(
                 wlWindow->display(), wlWindow->wlSurface(), 0, QString());
             connect(tokenProvider, &QWaylandXdgActivationTokenV1::done, this,
                     [this](const QString &token) {
                         m_shell->activation()->activate(token, window()->wlSurface());
                     });
             connect(tokenProvider, &QWaylandXdgActivationTokenV1::done, tokenProvider, &QObject::deleteLater);
             return true;
         }
     }
     return false;
 }
 
 void QWaylandLayerSurface::setXdgActivationToken(const QString &token)
 {
     m_activationToken = token;
 }
 
 void QWaylandLayerSurface::requestXdgActivationToken(quint32 serial)
 {
     QWaylandXdgActivationV1 *activation = m_shell->activation();
     if (!activation->isActive()) {
         return;
     }
     auto tokenProvider = activation->requestXdgActivationToken(
         window()->display(), window()->wlSurface(), serial, QString());
 
     connect(tokenProvider, &QWaylandXdgActivationTokenV1::done, this,
             [this](const QString &token) {
                 Q_EMIT window()->xdgActivationTokenCreated(token);
             });
     connect(tokenProvider, &QWaylandXdgActivationTokenV1::done, tokenProvider, &QObject::deleteLater);
 
 }
 
 }