In ccd3bf0871 we introduced code that would
ensure that our call to QWidgetPrivate::setVisible() from QWidgetWindow
would not result in WA_WState_Hidden being set. This code was later
modified in 51300566ff to apply to
widgets that were explicitly shown/hidden.
Unfortunately, the reset of the Hidden and ExplicitShowHide attributes
would in some cases result in the widget having only ExplicitShowHide
after being hidden, which is an invalid state.
It also resulted in the widget having both Visible, Hidden, and
ExplicitShowHide, if first being hidden via QWidget, and then
shown via QWindow, which in turn prevented the widget from being
hidden via QWidget::hide().
As we no longer rely on the adjustments to Hidden/ExplicitShowHide
to fix QTBUG-73021, we can remove the entire logic. Any setVisible
call to QWidgetWindow will either come from outside, in which case
we should respect that and set Visible/Hidden via QWidgetPrivate,
or the setVisible call is a result of QWidget itself (or its parent)
showing the QWidgetWindow, in which case the QWidget visible state
is already up to date and we skip the QWidgetPrivate::setVisible
call.
Task-number: QTBUG-121398
Task-number: QTBUG-73021
Fixes: QTBUG-120316
Pick-to: 6.7
Change-Id: I3174ad66b7e10c55aa99b7cb433267632169ca8f
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>