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I consider this a very dangerous change. We don't have unit tests for this specific code, it's an unlikely code path to be taken and we won't notice regressions. Personally I don't see a problem with having a dependency on QApplication. KWindowSystem links against Qt::Widgets that makes it obvious to any user that it requires a QApplication. If we want to make it work with QGuiApplication, then we need to make sure that we also get rid of Qt::Widgets dependency. Otherwise I think we are still in undefined behavior area if someone uses KWindowSystem without a QApplication. So overall from my side rather a -1 to this change. Risk of breakage too high for little benefit. - Martin Gräßlin On Nov. 1, 2015, 11:58 p.m., David Edmundson wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://git.reviewboard.kde.org/r/125915/ > ----------------------------------------------------------- > > (Updated Nov. 1, 2015, 11:58 p.m.) > > > Review request for KDE Frameworks and Albert Astals Cid. > > > Repository: kwindowsystem > > > Description > ------- > > QDesktopWidget was used which is broken for applications using > QGuiApplication. > > QDesktopWidget is now just a thin wrapper over QScreen so we can use that > directly. > > QApplication::activeWindow is ported to QGuiApplication::topLevelWindows > and then itterating to see if one is active. > > > Diffs > ----- > > src/platforms/xcb/kwindowsystem.cpp > 9d287043c24894ca3c29c439c7939b139da055e8 > > Diff: https://git.reviewboard.kde.org/r/125915/diff/ > > > Testing > ------- > > > Thanks, > > David Edmundson > >
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