File indexing completed on 2025-03-16 11:22:51

 /*
     SPDX-FileCopyrightText: 2018 Michail Vourlakos <mvourlakos@gmail.com>
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "screenedgeghostwindow.h"
 
 // local
 #include "../view.h"
 #include "../positioner.h"
 
 // Qt
 #include <QDebug>
 #include <QSurfaceFormat>
 #include <QQuickView>
 #include <QTimer>
 
 // KDE
 #include <KWayland/Client/plasmashell.h>
 #include <KWayland/Client/surface.h>
 #include <KWindowSystem>
 
 // X11
 #include <NETWM>
 
 namespace Latte {
 namespace ViewPart {
 
 ScreenEdgeGhostWindow::ScreenEdgeGhostWindow(Latte::View *view) :
     SubWindow(view, QString("Screen Ghost Window"))
 {
     if (m_debugMode) {
         m_showColor = QColor("purple");
         m_hideColor = QColor("blue");
     } else {
         m_showColor = QColor(Qt::transparent);
         m_hideColor = QColor(Qt::transparent);
 
         m_showColor.setAlpha(0);
         m_hideColor.setAlpha(1);
     }
 
     setColor(m_showColor);
 
     connect(m_latteView->positioner(), &Latte::ViewPart::Positioner::slideOffsetChanged, this, &ScreenEdgeGhostWindow::updateGeometry);
 
     //! this timer is used in order to avoid fast enter/exit signals during first
     //! appearing after edge activation
     m_delayedMouseTimer.setSingleShot(true);
     m_delayedMouseTimer.setInterval(50);
     connect(&m_delayedMouseTimer, &QTimer::timeout, this, [this]() {
         if (m_delayedContainsMouse) {
             setContainsMouse(true);
         } else {
             setContainsMouse(false);
         }
     });
 
     updateGeometry();
     hideWithMask();
 }
 
 ScreenEdgeGhostWindow::~ScreenEdgeGhostWindow()
 {
 }
 
 QString ScreenEdgeGhostWindow::validTitlePrefix() const
 {
     return QString("#subghostedge#");
 }
 
 void ScreenEdgeGhostWindow::updateGeometry()
 {
     if (m_latteView->positioner()->slideOffset() != 0) {
         return;
     }
 
     QRect newGeometry = m_latteView->absoluteGeometry();
 
     if (KWindowSystem::compositingActive()) {
         m_thickness = 6;
     } else {
         m_thickness = 2;
     }
 
     int length{30};
     int lengthDifference{0};
 
     if (m_latteView->formFactor() == Plasma::Types::Horizontal) {
         //! set minimum length to be 25% of screen width
         length = qMax(m_latteView->screenGeometry().width()/4,qMin(m_latteView->absoluteGeometry().width(), m_latteView->screenGeometry().width() - 1));
         lengthDifference = qMax(0,length - m_latteView->absoluteGeometry().width()) / 2;
     } else {
         //! set minimum length to be 25% of screen height
         length = qMax(m_latteView->screenGeometry().height()/4,qMin(m_latteView->absoluteGeometry().height(), m_latteView->screenGeometry().height() - 1));
         lengthDifference = qMax(0,length - m_latteView->absoluteGeometry().height()) / 2;
     }
 
     if (m_latteView->formFactor() == Plasma::Types::Horizontal) {
         int leftF = qMax(m_latteView->screenGeometry().left(), m_latteView->absoluteGeometry().left() - lengthDifference);
         int rightF = qMax(m_latteView->screenGeometry().left(), qMin(m_latteView->screenGeometry().right(), m_latteView->absoluteGeometry().right() + lengthDifference));
         newGeometry.setLeft(leftF);
         newGeometry.setRight(rightF);
     } else {
         int topF = qMax(m_latteView->screenGeometry().top(), m_latteView->absoluteGeometry().top() - lengthDifference);
         int bottomF = qMax(m_latteView->screenGeometry().top(), qMin(m_latteView->screenGeometry().bottom(), m_latteView->absoluteGeometry().bottom() + lengthDifference));
         newGeometry.setTop(topF);
         newGeometry.setBottom(bottomF);
     }
 
     if (m_latteView->location() == Plasma::Types::BottomEdge) {
         newGeometry.moveTop(m_latteView->screenGeometry().bottom() - m_thickness);
     } else if (m_latteView->location() == Plasma::Types::TopEdge) {
         newGeometry.moveTop(m_latteView->screenGeometry().top());
     } else if (m_latteView->location() == Plasma::Types::LeftEdge) {
         newGeometry.moveLeft(m_latteView->screenGeometry().left());
     } else if (m_latteView->location() == Plasma::Types::RightEdge) {        
         newGeometry.moveLeft(m_latteView->screenGeometry().right() - m_thickness);
     }
 
     if (m_latteView->formFactor() == Plasma::Types::Horizontal) {
         newGeometry.setHeight(m_thickness + 1);
     } else {
         newGeometry.setWidth(m_thickness + 1);
     }
 
     m_calculatedGeometry = newGeometry;
     emit calculatedGeometryChanged();
 }
 
 bool ScreenEdgeGhostWindow::containsMouse() const
 {
     return m_containsMouse;
 }
 
 void ScreenEdgeGhostWindow::setContainsMouse(bool contains)
 {
     if (m_containsMouse == contains) {
         return;
     }
 
     m_containsMouse = contains;
     emit containsMouseChanged(contains);
 }
 
 bool ScreenEdgeGhostWindow::event(QEvent *e)
 {
     if (e->type() == QEvent::DragEnter || e->type() == QEvent::DragMove) {
         if (!m_containsMouse) {
             m_delayedContainsMouse = false;
             m_delayedMouseTimer.stop();
             setContainsMouse(true);
             emit dragEntered();
         }
     } else if (e->type() == QEvent::Enter) {
         m_delayedContainsMouse = true;
         if (!m_delayedMouseTimer.isActive()) {
             m_delayedMouseTimer.start();
         }
     } else if (e->type() == QEvent::Leave || e->type() == QEvent::DragLeave) {
         m_delayedContainsMouse = false;
         if (!m_delayedMouseTimer.isActive()) {
             m_delayedMouseTimer.start();
         }
     }
 
     return SubWindow::event(e);
 }
 
 }
 }