c956eb8edd
When a QWidget was reparented, we would take care to reparent its backing QWidgetWindow as well, into the nearest QWindow of the new QWidget parent. However we would only do this for the reparented widget itself, and not any of its child widgets. In the case where the widget has native children with their own QWindows, the widget itself may not (yet) be native, e.g. if it hasn't been shown yet, or if the user has set Qt::WA_DontCreateNativeAncestors. In these scenarios, we would be left with dangling QWindows, still hanging off their original QWindow parents, which would eventually lead to crashes. We now reparent both the QWindow of the reparented widget (as long as it's not about to be destroyed), and any QQWindow children we can reach. For each child hierarchy we can stop once we reach a QWindow, as the QWindow children of that window will follow along once we reparent the QWindow. QWindowContainer widgets don't usually have their own windowHandle(), but still manage a QWindow inside their parent widget hierarchy. These will not be reparented during QWidgetPrivate::setParent_sys(), but instead do their own reparenting later in QWidget::setParent via QWindowContainer::parentWasChanged(). The only exception to this is when the top level is about to be destroyed, in which case we let the window container know during QWidgetPrivate::setParent_sys(). Finally, although there should not be any leftover QWindows in the reparented widget once we have done the QWidgetWindow and QWindowContainer reparenting, we still do a pass over any remaining QWindows and reparent those too, since the original code included this as a possibility. We could make further improvements in this areas, such as moving the QWindowContainer::parentWasChanged() call, but the goal was to keep this change as minimal as possible so we can back-port it. Fixes: QTBUG-122747 Pick-to: 6.7.0 6.7 6.6 6.5 Change-Id: I4d1217fce4c3c48cf5f7bfbe9d561ab408ceebb2 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io> |
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| .. | ||
| auto | ||
| baseline | ||
| benchmarks | ||
| global | ||
| libfuzzer | ||
| manual | ||
| shared | ||
| testserver | ||
| CMakeLists.txt | ||
| README | ||
README
This directory contains autotests and benchmarks based on Qt Test. In order
to run the autotests reliably, you need to configure a desktop to match the
test environment that these tests are written for.
Linux X11:
* The user must be logged in to an active desktop; you can't run the
autotests without a valid DISPLAY that allows X11 connections.
* The tests are run against a KDE3 or KDE4 desktop.
* Window manager uses "click to focus", and not "focus follows mouse". Many
tests move the mouse cursor around and expect this to not affect focus
and activation.
* Disable "click to activate", i.e., when a window is opened, the window
manager should automatically activate it (give it input focus) and not
wait for the user to click the window.