Add fallback to qt window context

Sine Striker

2023-12-19 7e132b345cc2b2515838c387a76ccc9f29705ba6

 src/core/contexts/qtwindowcontext.cpp

@@ -2,6 +2,8 @@

#include <QtCore/QDebug>

#include "qwkglobal_p.h"

namespace QWK {

    static constexpr const quint8 kDefaultResizeBorderThickness = 8;
@@ -74,6 +76,125 @@
#endif
    }

#ifdef Q_OS_LINUX
    class WindowMoveManipulator : public QObject {
    public:
        explicit WindowMoveManipulator(QWindow *targetWindow)
            : QObject(targetWindow), target(targetWindow), initialMousePosition(QCursor::pos()),
              initialWindowPosition(targetWindow->position()) {
            target->installEventFilter(this);
        }

    protected:
        bool eventFilter(QObject *obj, QEvent *event) override {
            switch (event->type()) {
                case QEvent::MouseMove: {
                    auto mouseEvent = static_cast<QMouseEvent *>(event);
                    QPoint delta = getMouseEventGlobalPos(mouseEvent) - initialMousePosition;
                    target->setPosition(initialWindowPosition + delta);
                    return true;
                }

                case QEvent::MouseButtonRelease: {
                    if (target->y() < 0) {
                        target->setPosition(target->x(), 0);
                    }
                    target->removeEventFilter(this);
                    this->deleteLater();
                }

                default:
                    break;
            }
            return false;
        }

    private:
        QWindow *target;
        QPoint initialMousePosition;
        QPoint initialWindowPosition;
    };
#endif

#if defined(Q_OS_MAC) || defined(Q_OS_LINUX)
    class WindowResizeManipulator : public QObject {
    public:
        WindowResizeManipulator(QWindow *targetWindow, Qt::Edges edges)
            : QObject(targetWindow), target(targetWindow), resizeEdges(edges),
              initialMousePosition(QCursor::pos()), initialWindowRect(target->geometry()) {
            target->installEventFilter(this);
        }

    protected:
        bool eventFilter(QObject *obj, QEvent *event) override {
            switch (event->type()) {
                case QEvent::MouseMove: {
                    auto mouseEvent = static_cast<QMouseEvent *>(event);
                    QPoint globalMousePos = getMouseEventGlobalPos(mouseEvent);
                    QRect windowRect = initialWindowRect;

                    if (resizeEdges & Qt::LeftEdge) {
                        int delta = globalMousePos.x() - initialMousePosition.x();
                        windowRect.setLeft(initialWindowRect.left() + delta);
                    }
                    if (resizeEdges & Qt::RightEdge) {
                        int delta = globalMousePos.x() - initialMousePosition.x();
                        windowRect.setRight(initialWindowRect.right() + delta);
                    }
                    if (resizeEdges & Qt::TopEdge) {
                        int delta = globalMousePos.y() - initialMousePosition.y();
                        windowRect.setTop(initialWindowRect.top() + delta);
                    }
                    if (resizeEdges & Qt::BottomEdge) {
                        int delta = globalMousePos.y() - initialMousePosition.y();
                        windowRect.setBottom(initialWindowRect.bottom() + delta);
                    }

                    target->setGeometry(windowRect);
                    return true;
                }

                case QEvent::MouseButtonRelease: {
                    target->removeEventFilter(this);
                    this->deleteLater();
                }

                default:
                    break;
            }
            return false;
        }

    private:
        QWindow *target;
        QPoint initialMousePosition;
        QRect initialWindowRect;
        Qt::Edges resizeEdges;
    };
#endif

    static inline void startSystemMove(QWindow *window) {
#ifdef Q_OS_LINUX
        if (window->startSystemMove()) {
            return;
        }
        std::ignore = new WindowMoveManipulator(window);
#else
        window->startSystemMove();
#endif
    }

    static inline void startSystemResize(QWindow *window, Qt::Edges edges) {
#if defined(Q_OS_MAC) || defined(Q_OS_LINUX)
        if (window->startSystemResize(edges)) {
            return;
        }
        std::ignore = new WindowResizeManipulator(window, edges);
#else
        window->startSystemResize(edges);
#endif
    }

    class QtWindowEventFilter : public QObject {
    public:
        explicit QtWindowEventFilter(AbstractWindowContext *context, QObject *parent = nullptr);
@@ -114,13 +235,10 @@
        WindowItemDelegate *delegate = m_context->delegate();
        bool fixedSize = delegate->isHostSizeFixed(host);
        auto me = static_cast<const QMouseEvent *>(event);
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
        QPoint scenePos = me->scenePosition().toPoint();
        QPoint globalPos = me->globalPosition().toPoint();
#else
        QPoint scenePos = me->windowPos().toPoint();
        QPoint globalPos = me->screenPos().toPoint();
#endif

        QPoint scenePos = getMouseEventScenePos(me);
        QPoint globalPos = getMouseEventGlobalPos(me);

        bool inTitleBar = m_context->isInTitleBarDraggableArea(scenePos);
        switch (type) {
            case QEvent::MouseButtonPress: {
@@ -130,7 +248,7 @@
                            Qt::Edges edges = calculateWindowEdges(window, scenePos);
                            if (edges != Qt::Edges()) {
                                m_windowStatus = Resizing;
                                window->startSystemResize(edges);
                                startSystemResize(window, edges);
                                event->accept();
                                return true;
                            }
@@ -143,7 +261,6 @@
                            event->accept();
                            return true;
                        }
                        m_windowStatus = WaitingRelease;
                        break;
                    }
                    case Qt::RightButton: {
@@ -153,6 +270,7 @@
                    default:
                        break;
                }
                m_windowStatus = WaitingRelease;
                break;
            }

@@ -187,7 +305,7 @@
                    }
                    case PreparingMove: {
                        m_windowStatus = Moving;
                        window->startSystemMove();
                        startSystemMove(window);
                        event->accept();
                        return true;
                    }