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protocol: define error codes for role reassignment

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On the interfaces where it was missing:
- wl_data_device
- wl_shell
- wl_pointer
add an error code for requests that set a wl_surface role when the
wl_surface already has a different role.

This is needed for compositors to appropriately report wl_surface
role violations.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Jasper St. Pierre <jstpierre@mecheye.net>
Acked-by: Jason Ekstrand <jason.ekstrand@intel.com>
This commit is contained in:
Pekka Paalanen 2014-10-01 12:52:22 +03:00
parent aee813f1ff
commit 7a0b86ab22
1 changed files with 19 additions and 3 deletions
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22
protocol/wayland.xml
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@ -525,6 +525,11 @@
A wl_data_device provides access to inter-client data transfer
mechanisms such as copy-and-paste and drag-and-drop.
</description>
<enum name="error">
<entry name="role" value="0" summary="given wl_surface has another role"/>
</enum>
<request name="start_drag">
<description summary="start drag-and-drop operation">
This request asks the compositor to start a drag-and-drop
@ -546,7 +551,8 @@
hotspot, but subsequent wl_surface.attach request can move the
relative position. Attach requests must be confirmed with
wl_surface.commit as usual. The icon surface is given the role of
a drag-and-drop icon.
a drag-and-drop icon. If the icon surface already has another role,
it raises a protocol error.
The current and pending input regions of the icon wl_surface are
cleared, and wl_surface.set_input_region is ignored until the
@ -677,10 +683,15 @@
a basic surface.
</description>
<enum name="error">
<entry name="role" value="0" summary="given wl_surface has another role"/>
</enum>
<request name="get_shell_surface">
<description summary="create a shell surface from a surface">
Create a shell surface for an existing surface. This gives
the wl_surface the role of a shell surface.
the wl_surface the role of a shell surface. If the wl_surface
already has another role, it raises a protocol error.
Only one shell surface can be associated with a given surface.
</description>
@ -1393,11 +1404,16 @@
and scrolling.
</description>
<enum name="error">
<entry name="role" value="0" summary="given wl_surface has another role"/>
</enum>
<request name="set_cursor">
<description summary="set the pointer surface">
Set the pointer surface, i.e., the surface that contains the
pointer image (cursor). This request gives the surface the role
of a cursor.
of a cursor. If the surface already has another role, it raises
a protocol error.
The cursor actually changes only if the pointer
focus for this device is one of the requesting client's surfaces