5ef4ad0af2
When updating the overall screen size, Xwayland would first walk the window tree then update both the xwl_screen and screen size. As a result, if any ResizeWindow() handler tries to use the xwl_screen size, it would get the old (wrong) size instead of the new one. Make sure to update the xwl_screen size first, prior to traverse the window tree. This is preparation work for Xwayland fullscreen mode. Signed-off-by: Olivier Fourdan <ofourdan@redhat.com> Reviewed-by: Adam Jackson <ajax@redhat.com>
X Server
The X server accepts requests from client applications to create windows, which are (normally rectangular) "virtual screens" that the client program can draw into.
Windows are then composed on the actual screen by the X server (or by a separate composite manager) as directed by the window manager, which usually communicates with the user via graphical controls such as buttons and draggable titlebars and borders.
For a comprehensive overview of X Server and X Window System, consult the following article: https://en.wikipedia.org/wiki/X_server
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