File indexing completed on 2024-11-10 04:57:17

 /*
     SPDX-FileCopyrightText: 2021 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "desktopbackgrounditem.h"
 #include "core/output.h"
 #include "window.h"
 #if KWIN_BUILD_ACTIVITIES
 #include "activities.h"
 #endif
 #include "core/outputbackend.h"
 #include "main.h"
 #include "scripting_logging.h"
 #include "virtualdesktops.h"
 #include "workspace.h"
 
 namespace KWin
 {
 
 DesktopBackgroundItem::DesktopBackgroundItem(QQuickItem *parent)
     : WindowThumbnailItem(parent)
 {
 }
 
 void DesktopBackgroundItem::componentComplete()
 {
     WindowThumbnailItem::componentComplete();
     updateWindow();
 }
 
 QString DesktopBackgroundItem::outputName() const
 {
     return m_output ? m_output->name() : QString();
 }
 
 void DesktopBackgroundItem::setOutputName(const QString &name)
 {
     setOutput(kwinApp()->outputBackend()->findOutput(name));
 }
 
 Output *DesktopBackgroundItem::output() const
 {
     return m_output;
 }
 
 void DesktopBackgroundItem::setOutput(Output *output)
 {
     if (m_output != output) {
         m_output = output;
         updateWindow();
         Q_EMIT outputChanged();
     }
 }
 
 VirtualDesktop *DesktopBackgroundItem::desktop() const
 {
     return m_desktop;
 }
 
 void DesktopBackgroundItem::setDesktop(VirtualDesktop *desktop)
 {
     if (m_desktop != desktop) {
         m_desktop = desktop;
         updateWindow();
         Q_EMIT desktopChanged();
     }
 }
 
 QString DesktopBackgroundItem::activity() const
 {
     return m_activity;
 }
 
 void DesktopBackgroundItem::setActivity(const QString &activity)
 {
     if (m_activity != activity) {
         m_activity = activity;
         updateWindow();
         Q_EMIT activityChanged();
     }
 }
 
 void DesktopBackgroundItem::updateWindow()
 {
     if (!isComponentComplete()) {
         return;
     }
 
     if (Q_UNLIKELY(!m_output)) {
         qCWarning(KWIN_SCRIPTING) << "DesktopBackgroundItem.output is required";
         return;
     }
 
     VirtualDesktop *desktop = m_desktop;
     if (!desktop) {
         desktop = VirtualDesktopManager::self()->currentDesktop();
     }
 
     QString activity = m_activity;
     if (activity.isEmpty()) {
 #if KWIN_BUILD_ACTIVITIES
         activity = Workspace::self()->activities()->current();
 #endif
     }
 
     Window *clientCandidate = nullptr;
 
     const auto clients = workspace()->windows();
     for (Window *client : clients) {
         if (client->isDesktop() && client->isOnOutput(m_output) && client->isOnDesktop(desktop) && client->isOnActivity(activity)) {
             // In the unlikely event there are multiple desktop windows (e.g. conky's floating panel is of type "desktop")
             // choose the one which matches the ouptut size, if possible.
             if (!clientCandidate || client->size() == m_output->geometry().size()) {
                 clientCandidate = client;
             }
         }
     }
 
     setClient(clientCandidate);
 }
 
 } // namespace KWin
 
 #include "moc_desktopbackgrounditem.cpp"