agl-shell: Add bound_ok and bound_fail events and a default destructor

[src/agl-compositor.git] / protocol / agl-shell.xml

diff --git a/protocol/agl-shell.xml b/protocol/agl-shell.xml
index 1096c64..84a423c 100644 (file)
--- a/protocol/agl-shell.xml
+++ b/protocol/agl-shell.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <protocol name="agl_shell">
   <copyright>
 <?xml version="1.0" encoding="UTF-8"?>
 <protocol name="agl_shell">
   <copyright>

-    Copyright © 2019 Collabora, Ltd.
+    Copyright © 2019, 2022 Collabora, Ltd.

 
     Permission is hereby granted, free of charge, to any person obtaining a
     copy of this software and associated documentation files (the "Software"),
 
     Permission is hereby granted, free of charge, to any person obtaining a
     copy of this software and associated documentation files (the "Software"),


@@ -22,10 +22,36 @@
     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     DEALINGS IN THE SOFTWARE.
   </copyright>
     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     DEALINGS IN THE SOFTWARE.
   </copyright>

-  <interface name="agl_shell" version="1">
-    <description summary="user interface for weston-ivi">
+  <interface name="agl_shell" version="2">
+    <description summary="user interface for Automotive Grade Linux platform">
+      Starting with version 2 of the protocol, the client is required to wait
+      for the 'bound_ok' or 'bound_fail' events in order to proceed further.
+
+      In case the client gets a 'bound_fail' event then it should consider that
+      there's another client already bound to the agl_shell protocol.
+      A client that receives a 'bound_ok' event should consider that there's
+      no other client already bound to the interface and can proceed further.
+
+      If the client uses an older version of the protocol it will receive
+      automatically an error and the compositor will terminate the connection,
+      if there's another client already bound the interface.
+
+      If the client receives the 'bound_fail' event and attempts to use the
+      interface further it will receive an error and the compositor will
+      terminate the connection. After the 'bound_fail' event was received the
+      client should call the destructor, which has been added with version 2
+      of the protocol. The client is free to try at a later point in time to
+      see if it will receive the 'bound_ok' event, but there's no explicit way
+      of finding out when that event will be delivered.
+      It is assumed that it can infer that information through other
+      means/other channels.

     </description>
 
     </description>
 

+    <request name="destroy" type="destructor" since="2">
+      <description summary="destroys the factory object">
+      </description>
+    </request>
+

     <enum name="error">
       <entry name="invalid_argument" value="0"/>
       <entry name="background_exists" value="1"/>
     <enum name="error">
       <entry name="invalid_argument" value="0"/>
       <entry name="background_exists" value="1"/>


@@ -44,7 +70,7 @@
         Tell the server that this client is ready to be shown. The server
         will delay presentation during start-up until all shell clients are
         ready to be shown, and will display a black screen instead.
         Tell the server that this client is ready to be shown. The server
         will delay presentation during start-up until all shell clients are
         ready to be shown, and will display a black screen instead.

-        This gives the client an oppurtunity to set up and configure several
+        This gives the client an opportunity to set up and configure several

         surfaces into a coherent interface.
 
         The client that binds to this interface must send this request, otherwise
         surfaces into a coherent interface.
 
         The client that binds to this interface must send this request, otherwise


@@ -76,7 +102,7 @@
         Set the surface to act as a panel of an output. The 'edge' argument
         says what edge of the output the surface will be anchored to.
         After this request, the server will send a configure event with the
         Set the surface to act as a panel of an output. The 'edge' argument
         says what edge of the output the surface will be anchored to.
         After this request, the server will send a configure event with the

-        correponding width/height that the client should use, and 0 for the
+        corresponding width/height that the client should use, and 0 for the

         other dimension. E.g. if the edge is 'top', the width will be the
         output's width, and the height will be 0.
 
         other dimension. E.g. if the edge is 'top', the width will be the
         output's width, and the height will be 0.
 


@@ -113,5 +139,22 @@
       <arg name="app_id" type="string"/>
       <arg name="output" type="object" interface="wl_output"/>
     </request>
       <arg name="app_id" type="string"/>
       <arg name="output" type="object" interface="wl_output"/>
     </request>

+
+    <event name="bound_ok" since="2">
+     <description summary="event sent if binding was ok">
+        Informs the client that it was able to bind the agl_shell
+        interface succesfully. Clients are required to wait for this
+        event before continuing further.
+     </description>
+    </event>
+
+    <event name="bound_fail" since="2">
+      <description summary="event sent if binding was nok">
+        Informs the client that binding to the agl_shell interface was
+        unsuccesfull. Clients are required to wait for this event for
+        continuing further.
+      </description>
+    </event>
+

   </interface>
 </protocol>
   </interface>
 </protocol>