[PATCH v6 wayland-protocols] virtual-keyboard: Add new virtual keyboard protocol

Peter Hutterer peter.hutterer at who-t.net
Tue Sep 24 22:32:50 UTC 2019


On Fri, Aug 03, 2018 at 07:12:29PM +0200, Dorota Czaplejewicz wrote:
> Provides the ability to emulate keyboards by applications. Complementary to input-method protocol.
> 
> The interface is a mirror copy of wl_keyboard, with removed serials, and added seat binding.
> ---
> Hello,
> 
> this is the change I wanted to send previously (sorry).
> 
> Regards,
> Dorota Czaplejewicz
> 
>  Makefile.am                                        |   1 +
>  unstable/virtual-keyboard/README                   |   2 +
>  .../virtual-keyboard-unstable-v1.xml               | 114 +++++++++++++++++++++
>  3 files changed, 117 insertions(+)
>  create mode 100644 unstable/virtual-keyboard/README
>  create mode 100644 unstable/virtual-keyboard/virtual-keyboard-unstable-v1.xml
> 
> diff --git a/Makefile.am b/Makefile.am
> index 6394e26..d67aa1b 100644
> --- a/Makefile.am
> +++ b/Makefile.am
> @@ -20,6 +20,7 @@ unstable_protocols =								\
>  	unstable/keyboard-shortcuts-inhibit/keyboard-shortcuts-inhibit-unstable-v1.xml \
>  	unstable/xdg-output/xdg-output-unstable-v1.xml				\
>  	unstable/input-timestamps/input-timestamps-unstable-v1.xml	\
> +	unstable/virtual-keyboard/virtual-keyboard-unstable-v1.xml	\
>  	unstable/xdg-decoration/xdg-decoration-unstable-v1.xml	\
>  	$(NULL)
>  
> diff --git a/unstable/virtual-keyboard/README b/unstable/virtual-keyboard/README
> new file mode 100644
> index 0000000..a2c646d
> --- /dev/null
> +++ b/unstable/virtual-keyboard/README
> @@ -0,0 +1,2 @@
> +Virtual keyboard protocol
> +
> diff --git a/unstable/virtual-keyboard/virtual-keyboard-unstable-v1.xml b/unstable/virtual-keyboard/virtual-keyboard-unstable-v1.xml
> new file mode 100644
> index 0000000..9eae804
> --- /dev/null
> +++ b/unstable/virtual-keyboard/virtual-keyboard-unstable-v1.xml
> @@ -0,0 +1,114 @@
> +<?xml version="1.0" encoding="UTF-8"?>
> +<protocol name="virtual_keyboard_unstable_v1">
> +  <copyright>
> +    Copyright © 2008-2011  Kristian Høgsberg
> +    Copyright © 2010-2013  Intel Corporation
> +    Copyright © 2012-2013  Collabora, Ltd.
> +    Copyright © 2018       Purism SPC
> +
> +    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>
> +
> +  <interface name="zwp_virtual_keyboard_v1" version="1">
> +    <description summary="virtual keyboard">
> +      The virtual keyboard provides an application with requests which emulate
> +      the behaviour of a physical keyboard.
> +
> +      This interface can be used by clients on its own to provide raw input
> +      events, or it can accompany the input method protocol.
> +    </description>
> +
> +    <request name="keymap">
> +      <description summary="keyboard mapping">
> +        Provide a file descriptor to the compositor which can be memory-mapped
> +        to provide a keyboard mapping description.

I suspect this needs the MAP_PRIVATE comment from wayland.xml as well. 
And in general a comment about the life time of that fd (until destroy, but
it's nice to spell this out).

> +      </description>
> +      <arg name="format" type="uint" enum="wl_keyboard.keymap_format"
> +        summary="keymap format"/>
> +      <arg name="fd" type="fd" summary="keymap file descriptor"/>
> +      <arg name="size" type="uint" summary="keymap size, in bytes"/>
> +    </request>
> +    
> +    <enum name="error">
> +      <entry name="no_keymap" value="0" summary="No keymap was set"/>
> +    </enum>
> +
> +    <request name="key">
> +      <description summary="key event">
> +        A key was pressed or released.
> +
> +        The time argument is a timestamp with millisecond granularity, with an
> +        undefined base. All requests regarding a single object must share the
> +        same clock.
> +
> +        Keymap must be set before issuing this request.

... or else what happens? :)

> +      </description>
> +      <arg name="time" type="uint"
> +        summary="timestamp with millisecond granularity"/>
> +      <arg name="key" type="uint" summary="key that produced the event"/>
> +      <arg name="state" type="uint" enum="wl_keyboard.key_state"
> +        summary="physical state of the key"/>
> +    </request>
> +
> +    <request name="modifiers">
> +      <description summary="modifier and group state">
> +        Notifies the compositor that the modifier and/or group state has
> +        changed, and it should update state.
> +
> +        Keymap must be set before issuing this request.

as above

Other than that, this looks good, thanks!

Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>

Cheers,
   Peter

> +      </description>
> +      <arg name="mods_depressed" type="uint" summary="depressed modifiers"/>
> +      <arg name="mods_latched" type="uint" summary="latched modifiers"/>
> +      <arg name="mods_locked" type="uint" summary="locked modifiers"/>
> +      <arg name="group" type="uint" summary="keyboard layout"/>
> +    </request>
> +
> +    <request name="destroy" type="destructor">
> +      <description summary="destroy the virtual keyboard object"/>
> +    </request>
> +  </interface>
> +
> +  <interface name="zwp_virtual_keyboard_manager_v1" version="1">
> +    <description summary="virtual keyboard manager">
> +      A virtual keyboard manager allows an application to provide keyboard
> +      input events as if they came from a physical keyboard.
> +
> +      If the compositor enables a keyboard to perform arbitrary actions, it
> +      should prevent untrusted clients from using this interface.
> +    </description>
> +
> +    <request name="create_virtual_keyboard">
> +      <description summary="create a new virtual keyboard">
> +        Creates a new virtual keyboard associated to a seat.
> +      </description>
> +      <arg name="seat" type="object" interface="wl_seat"/>
> +      <arg name="id" type="new_id" interface="zwp_virtual_keyboard_v1"
> +        summary="the id of the newly created virtual keyboard"/>
> +    </request>
> +
> +    <request name="destroy" type="destructor">
> +      <description summary="destroy the virtual keyboard manager object">
> +        Destroys the virtual keyboard manager.
> +
> +        Existing zwp_virtual_keyboard_v1 objects remain valid.
> +      </description>
> +    </request>
> +  </interface>
> +</protocol>
> -- 
> 2.14.4
> 
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