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Merge branch 'xdg-surface-shape' into 'main'

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staging: add xdg-surface-shape-v1

See merge request wayland/wayland-protocols!449
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Victoria Brekenfeld 2025-12-16 15:33:50 +01:00
commit c9ed685712
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@ -70,6 +70,7 @@ staging_protocols = {
'tearing-control': ['v1'],
'xdg-activation': ['v1'],
'xdg-dialog': ['v1'],
'xdg-surface-shape': ['v1'],
'xdg-system-bell': ['v1'],
'xdg-toplevel-drag': ['v1'],
'xdg-toplevel-icon': ['v1'],

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staging/xdg-surface-shape/README Normal file
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@ -0,0 +1,4 @@
Surface shape
Maintainers:
Victoria Brekenfeld <victoria@system76.com> (@drakulix)

168
staging/xdg-surface-shape/xdg-surface-shape-v1.xml Normal file
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<?xml version="1.0" encoding="UTF-8" ?>
<protocol name="xdg_surface_shape_v1">
<copyright>
Copyright © 2025 Victoria Brekenfeld
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
</copyright>
<description summary="communicate the shape of an xdg surface">
This protocol provides a way for clients to communicate the
shape of their surface, for example the radii of rounded corners.
This hint can then be used by the compositor to draw fitting outlines
or prevent overdrawing of other server-side drawn interfaces.
</description>
<interface name="xdg_surface_shape_manager_v1" version="1">
<description summary="surface shape global">
Manager for creating surface shape objects for existing xdg-surfaces
</description>
<request name="destroy" type="destructor">
<description summary="Destroy the global">
Informs the server that the client will no longer use this global.
Any previously created surface-shape objects remain valid until destroyed.
</description>
</request>
<request name="get_surface_shape">
<description
summary="Create a new surface-shape object for a xdg_surface"
>
Instantiate an interface extension for the given xdg_surface to specify its shape.
If the given xdg_surface already has a xdg_surface_shape_v1 object associated,
the surface_shape_exists protocol error will be raised.
</description>
<arg
name="id"
type="new_id"
interface="xdg_surface_shape_v1"
summary="the new xdg_surface_shape_v1 object"
/>
<arg
name="surface"
type="object"
interface="xdg_surface"
summary="the xdg-surface"
/>
</request>
<enum name="error">
<entry
name="surface_shape_exists"
value="0"
summary="the surface already has a surface_shape object"
/>
</enum>
</interface>
<interface name="xdg_surface_shape_v1" version="1">
<description summary="surface shape extension">
The surface-shape object provides a way to specify the shape of
its associated xdg_surface to the compositor.
If the xdg_surface associated with the xdg_surface_shape_v1
object has been destroyed, any further requests to this object
other than destroy will raise the surface_destroyed protocol error.
</description>
<request name="destroy" type="destructor">
<description summary="Destroy the surface-shape object">
Informs the server that the client will no longer be using this protocol
object. The surface-shape state will be unset on the next commit.
</description>
</request>
<request name="set_corner_radii">
<description summary="Set corner radii">
This request sets the hinted corner radii values for windows
whose geometry is shaped as a rounded rectangle.
The corner radii hint is double-buffered and will be applied on
the next wl_surface.commit.
The values are in logical pixels and define the corner radii of the window
geometry of associated xdg_surface (see xdg_surface.set_window_geometry).
If any value exceeds half of either dimension of the window geometry
the radius_too_large protocol error is raised.
If your surface's visual geometry shape isn't a rounded rectangle,
then you shouldn't use this request to set the corner radii,
as the shape won't match what the compositor expects.
For example, do not use this request if your surface:
- is freeform or has a custom shape
- is a rounded rectangle, but this rectangle doesn't exactly match
your xdg_surface window geometry
If your surface's geometry is a rounded rectangle, but not for every corner
(e.g. only one of the corners is a free-form shape), then you can set that
corner's value to 0 (implying a square corner) or to some reasonable
approximation of a circle corner.
If your surface's geometry is a rectangle with square corners, it is still
useful to explicitly set the radii to 0, since that lets the compositor
differentiate known-square windows from freeform windows.
For known-square windows the compositor can draw a border around the window,
whereas for freeform windows the compositor may need to draw a solid
background, since the window shape is unknown.
</description>
<arg name="top_left" type="uint" summary="top-left corner radius" />
<arg name="top_right" type="uint" summary="top-right corner radius" />
<arg
name="bottom_right"
type="uint"
summary="bottom-right corner radius"
/>
<arg name="bottom_left" type="uint" summary="bottom-left corner radius" />
</request>
<request name="unset_radii">
<description summary="Unset corner radii">
Unsets any previously hinted corner radii values without invalidating
the object for later use. Can be used by clients that have temporary
irregular shapes.
The corner radii hint is double-buffered, meaning the previous state
will still apply until the next wl_surface.commit.
Compositors should treat a surface with an unset-radii the same as surface
with a freshly created xdg_surface_shape_v1 that has no radii set yet or
any surface without an xdg_surface_shape_v1 object for that matter.
</description>
</request>
<enum name="error">
<entry
name="surface_destroyed"
value="0"
summary="the associated xdg-surface object has been already destroyed"
/>
<entry
name="radius_too_large"
value="1"
summary="the associated xdg-surface's window geometry isn't large enough for a requested radius"
/>
</enum>
</interface>
</protocol>