Warning, /libraries/plasma-wayland-protocols/src/protocols/kde-lockscreen-overlay-v1.xml is written in an unsupported language. File is not indexed.

 <?xml version="1.0" encoding="UTF-8"?>
 <protocol name="kde_lockscreen_overlay_v1">
   <copyright><![CDATA[
     SPDX-FileCopyrightText: 2022 Aleix Pol Gonzalez <aleixpol@kde.org>
 
     SPDX-License-Identifier: LGPL-2.1-or-later
   ]]></copyright>
 
   <interface  name="kde_lockscreen_overlay_v1" version="1">
       <description summary="Allow surfaces over the lockscreen">
         Allows a client to request a surface to be visible when the system is locked.
 
         This is meant to be used for specific high urgency cases like phone calls or alarms.
       </description>
 
       <enum name="error">
           <entry name="invalid_surface_state" value="0" summary="the client provided an invalid surface state"/>
       </enum>
 
       <request name="allow">
         <description summary="Tell about which surface could be raised above the lockscreen">
           Informs the compositor that the surface could be shown when the screen is locked. This request should be called while the surface is unmapped.
         </description>
         <arg name="surface" type="object" interface="wl_surface"/>
     </request>
 
     <request name="destroy" type="destructor">
         <description summary="Destroy the kde_lockscreen_overlay_v1">
           This won't affect the surface previously marked with the allow request.
         </description>
     </request>
   </interface>
 </protocol>