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desktop-shell: do not forget to reset pending config size after resizes

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During interactive resizes, we progressively change the size of the
client surface and send config events with these sizes to the client.
After that, the toplevel->pending.size keeps the size of the last config
event that we've sent, i.e. the surface size after the resize is over.

Later, if the client spontaneously resize (by attaching a buffer with a
different size or setting the viewport destination, for instance), their
surface size will change, but toplevel->pending.size continues being
that old size from after the resize. If something happens and Weston
decides to send a config event, clients may re-allocate to that old
size, resulting in a sudden resize.

This does not happen when a client goes from fullscreen/maximized to
windowed mode because in such cases we are resetting
toplevel->pending.size to zero. So in the next config event that clients
receive they are allowed to attach buffers with the size that they
prefer.

So do the same after a resize: set the pending config size to zero.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
This commit is contained in:
Leandro Ribeiro 2023-02-06 15:55:18 -03:00 committed by Pekka Paalanen
parent 7c1492216e
commit ba82af938a
1 changed files with 2 additions and 0 deletions
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2
desktop-shell/shell.c
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@ -1219,6 +1219,7 @@ resize_grab_button(struct weston_pointer_grab *grab,
resize->base.shsurf->desktop_surface;
weston_desktop_surface_set_resizing(desktop_surface,
false);
weston_desktop_surface_set_size(desktop_surface, 0, 0);
}
shell_grab_end(&resize->base);
@ -1235,6 +1236,7 @@ resize_grab_cancel(struct weston_pointer_grab *grab)
struct weston_desktop_surface *desktop_surface =
resize->base.shsurf->desktop_surface;
weston_desktop_surface_set_resizing(desktop_surface, false);
weston_desktop_surface_set_size(desktop_surface, 0, 0);
}
shell_grab_end(&resize->base);