xdg-shell: Specify the meaning of 0x0 window geometry in configure
Some times the compositor needs to send a configure request but without
having any clue about what size the surface should have. Examples
include unmaximizing a surface that was mapped as maximized, or an
initial state which doesn't have any size expectations.
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
diff --git a/protocol/xdg-shell.xml b/protocol/xdg-shell.xml
index 50ffd9c..85aa748 100644
--- a/protocol/xdg-shell.xml
+++ b/protocol/xdg-shell.xml
@@ -317,6 +317,11 @@
about how its surface should be resized in window geometry
coordinates. See set_window_geometry.
+ If the width or height arguments are zero, it means the client
+ should decide its own window dimension. This may happen when the
+ compositor need to configure the state of the surface but doesn't
+ have any information about any previous or expected dimension.
+
The states listed in the event specify how the width/height
arguments should be interpreted, and possibly how it should be
drawn.