client: Synthesize enter/leave event for popup in xdg-shell

Fixes: QTBUG-100148
Change-Id: I45e3156d7942cff9968674c0b253d15be7235921
Reviewed-by: Tang Haixiang <tanghaixiang@uniontech.com>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
(cherry picked from commit 73d35d3117722cef8e94f0d2036c56ad0a5ddae9)
Reviewed-by: Liang Qi <liang.qi@qt.io>

1 files changed, 27 insertions, 0 deletions

diff --git a/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell.cpp b/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell.cpp
index ac5d50a13..e11745505 100644
--- a/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell.cpp
+++ b/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell.cpp
@@ -220,6 +220,16 @@ QWaylandXdgSurface::Popup::~Popup()
         auto *shell = m_xdgSurface->m_shell;
         Q_ASSERT(shell->m_topmostGrabbingPopup == this);
         shell->m_topmostGrabbingPopup = m_parent->m_popup;
+        m_grabbing = false;
+
+        // Synthesize Qt enter/leave events for popup
+        QWindow *leave = nullptr;
+        if (m_xdgSurface && m_xdgSurface->window())
+            leave = m_xdgSurface->window()->window();
+        QWindowSystemInterface::handleLeaveEvent(leave);
+
+        if (QWindow *enter = QGuiApplication::topLevelAt(QCursor::pos()))
+            QWindowSystemInterface::handleEnterEvent(enter, enter->mapFromGlobal(QCursor::pos()), QCursor::pos());
     }
 }
 
@@ -441,6 +451,23 @@ void QWaylandXdgSurface::setGrabPopup(QWaylandWindow *parent, QWaylandInputDevic
     }
     setPopup(parent);
     m_popup->grab(device, serial);
+
+    // Synthesize Qt enter/leave events for popup
+    if (!parent)
+        return;
+    QWindow *current = QGuiApplication::topLevelAt(QCursor::pos());
+    QWindow *leave = parent->window();
+    if (current != leave)
+        return;
+
+    QWindowSystemInterface::handleLeaveEvent(leave);
+
+    QWindow *enter = nullptr;
+    if (m_popup && m_popup->m_xdgSurface && m_popup->m_xdgSurface->window())
+        enter = m_popup->m_xdgSurface->window()->window();
+
+    if (enter)
+        QWindowSystemInterface::handleEnterEvent(enter, enter->mapFromGlobal(QCursor::pos()), QCursor::pos());
 }
 
 void QWaylandXdgSurface::xdg_surface_configure(uint32_t serial)