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fix QApplciation with a QML popupWindow

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Since 6.8, QML has popupWindow. When in popupModeMode,
it does not necessarily have a popupWidget.

Not checking whether popWidget is nullptr will cause the
program to crash.

Fixes: QTBUG-131664
Pick-to: 6.8
Change-Id: I624b62ef7185f0ab35215c2c34b0d6e9c80539a0
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
This commit is contained in:
Liu Heng 2024-11-27 17:55:15 +08:00
parent b3c0b08eb0
commit 706d54eefe
1 changed files with 4 additions and 7 deletions
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11
src/widgets/kernel/qwidgetwindow.cpp
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@ -505,8 +505,7 @@ void QWidgetWindow::handleNonClientAreaMouseEvent(QMouseEvent *e)
void QWidgetWindow::handleMouseEvent(QMouseEvent *event)
{
if (QApplicationPrivate::inPopupMode()) {
QPointer<QWidget> activePopupWidget = QApplication::activePopupWidget();
if (auto *activePopupWidget = QApplication::activePopupWidget()) {
QPointF mapped = event->position();
if (activePopupWidget != m_widget)
mapped = activePopupWidget->mapFromGlobal(event->globalPosition());
@ -682,7 +681,7 @@ void QWidgetWindow::handleTouchEvent(QTouchEvent *event)
if (event->type() == QEvent::TouchCancel) {
QApplicationPrivate::translateTouchCancel(event->pointingDevice(), event->timestamp());
event->accept();
} else if (QApplicationPrivate::inPopupMode()) {
} else if (QApplication::activePopupWidget()) {
// Ignore touch events for popups. This will cause QGuiApplication to synthesise mouse
// events instead, which QWidgetWindow::handleMouseEvent will forward correctly:
event->ignore();
@ -697,8 +696,7 @@ void QWidgetWindow::handleKeyEvent(QKeyEvent *event)
return;
QObject *receiver = QWidget::keyboardGrabber();
if (!receiver && QApplicationPrivate::inPopupMode()) {
QWidget *popup = QApplication::activePopupWidget();
if (auto *popup = QApplication::activePopupWidget(); !receiver && popup) {
QWidget *popupFocusWidget = popup->focusWidget();
receiver = popupFocusWidget ? popupFocusWidget : popup;
}
@ -1151,8 +1149,7 @@ void QWidgetWindow::handleGestureEvent(QNativeGestureEvent *e)
{
// copy-pasted code to find correct widget follows:
QObject *receiver = nullptr;
if (QApplicationPrivate::inPopupMode()) {
QWidget *popup = QApplication::activePopupWidget();
if (auto *popup = QApplication::activePopupWidget()) {
QWidget *popupFocusWidget = popup->focusWidget();
receiver = popupFocusWidget ? popupFocusWidget : popup;
}