Jonas Ådahl cda26b493e wayland: Only use async configured geometry if actually changed
When (un)maximizing, (un)fullscreening, the move/resize action is
flagged with 'ACTION_MOVE' and 'ACTION_RESIZE' , while e.g.
'appears-focus' does not.

When a client misbehaved and didn't immediately reply to a configure
request with a commit with the corresponding ack_configure, the
following commit would trigger a oddly timed move, making the window
appear to move back to a previous position.

Avoid this issue by only carrying over the target window position if the
configuration actually contained a new position.

We cannot only rely on the flags however, as e.g. a new position should
be respected during interactive resize, even though only 'ACTION_RESIZE'
is passed in such scenarios.

Do the same for the size, except if the window state dictates that the
size is fixed to a certain size, e.g. being fullscreen or maximized.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1445>
2021-01-30 09:49:13 +00:00
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