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protocol: add seat missing_capability error

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The protocol says:

> It is a protocol violation to issue this request on a seat that
> has never had the pointer capability.

But never defines an error code.

Signed-off-by: Simon Ser <contact@emersion.fr>
Closes: https://gitlab.freedesktop.org/wayland/wayland/-/issues/165
This commit is contained in:
Simon Ser 2020-05-28 10:00:12 +02:00 • committed by Daniel Stone
parent cf20f24140
commit 21fad23a47
1 changed files with 14 additions and 3 deletions
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17
protocol/wayland.xml
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@ -1743,6 +1743,14 @@
<entry name="touch" value="4" summary="the seat has touch devices"/>
</enum>
<enum name="error">
<description summary="wl_seat error values">
These errors can be emitted in response to wl_seat requests.
</description>
<entry name="missing_capability" value="0"
summary="get_pointer, get_keyboard or get_touch called on seat without the matching capability"/>
</enum>
<event name="capabilities">
<description summary="seat capabilities changed">
This is emitted whenever a seat gains or loses the pointer,
@ -1781,7 +1789,8 @@
This request only takes effect if the seat has the pointer
capability, or has had the pointer capability in the past.
It is a protocol violation to issue this request on a seat that has
never had the pointer capability.
never had the pointer capability. The missing_capability error will
be sent in this case.
</description>
<arg name="id" type="new_id" interface="wl_pointer" summary="seat pointer"/>
</request>
@ -1794,7 +1803,8 @@
This request only takes effect if the seat has the keyboard
capability, or has had the keyboard capability in the past.
It is a protocol violation to issue this request on a seat that has
never had the keyboard capability.
never had the keyboard capability. The missing_capability error will
be sent in this case.
</description>
<arg name="id" type="new_id" interface="wl_keyboard" summary="seat keyboard"/>
</request>
@ -1807,7 +1817,8 @@
This request only takes effect if the seat has the touch
capability, or has had the touch capability in the past.
It is a protocol violation to issue this request on a seat that has
never had the touch capability.
never had the touch capability. The missing_capability error will
be sent in this case.
</description>
<arg name="id" type="new_id" interface="wl_touch" summary="seat touch interface"/>
</request>