Details
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Bug
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Resolution: Out of scope
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P3: Somewhat important
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None
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5.7.0
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None
Description
When setting a window fullscreen the output (QScreen) is not passed to the set_fullscreen call. Thus the Wayland compositor has no idea on which output to show the newly created window.
From qwaylandwlshellsurface.cpp:
void QWaylandWlShellSurface::setFullscreen()
{
m_fullscreen = true;
m_size = m_window->window()->geometry().size();
set_fullscreen(WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT, 0, 0);
}
This is a problem in case an application tries to create a fullscreen window for each output. Consider the following example from ksplahsqml (KDE application in plasma-workspace)
foreach(QScreen* screen, screens())
adoptScreen(screen);
void SplashApp::adoptScreen(QScreen* screen)
{
SplashWindow *w = new SplashWindow(m_testing, m_window);
w->setScreen(screen);
w->setGeometry(screen->geometry());
w->setStage(m_stage);
w->setVisible(true);
m_windows << w;
// snip unrelated code
}
A Wayland compositor might place them all on the first Output which is not what the application intends to do.