<?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"),
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="4">
+ <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>
<enum name="error">
<entry name="right" value="3"/>
</enum>
+ <enum name="app_state" since="3">
+ <entry name="started" value="0"/>
+ <entry name="terminated" value="1"/>
+ <entry name="activated" value="2"/>
+ <entry name="deactivated" value="3"/>
+ </enum>
+
<request name="ready">
<description summary="client is ready to be shown">
Tell the server that this client is ready to be shown. The server
<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>
+
+ <request name="destroy" type="destructor" since="2">
+ <description summary="destroys the factory object">
+ </description>
+ </request>
+
+ <event name="app_state" since="3">
+ <description summary="event sent when an application suffered state modification">
+ Informs the client that an application has changed its state to another,
+ specified by the app_state enum. Client can use this event to track
+ current application state. For instance to know when the application has
+ started, or when terminated/stopped.
+ </description>
+ <arg name="app_id" type="string"/>
+ <arg name="state" type="uint" enum="app_state"/>
+ </event>
+
+ <request name="set_activate_region" since="4">
+ <description summary="sets a specific region to activate">
+ A hint for the compositor to use a custom area, rather than
+ inferring the activation area. If any panels are used
+ the compositor computes the activation area by subtracting the
+ panels geometry area. If no panels are used then the entire output
+ is being used. This request changes that as to hint the compositor
+ to use the supplied rectangle and ignore any potential panels
+ that might been set-up previously.
+
+ In order for this request to take effect it will need to happen
+ before the 'ready' request in order for the compositor to make use of it.
+ Note that any 'set_panel' request be will not be honored, if this request
+ has been called.
+
+ The x and y coordinates use the top-left corner as the origin. The
+ rectangle area shouldn't exceed the output area, while an area smaller
+ than the output, would basically result in showing up the background
+ surface.
+ </description>
+ <arg name="output" type="object" interface="wl_output"/>
+ <arg name="x" type="int" summary="x position of rectangle"/>
+ <arg name="y" type="int" summary="y position of rectangle"/>
+ <arg name="width" type="int" summary="width of rectangle"/>
+ <arg name="height" type="int" summary="height of rectangle"/>
+ </request>
+ </interface>
+
+ <interface name="agl_shell_ext" version="1">
+ <description summary="extended user interface for Automotive Grade Linux platform">
+ This interface allows another client bind to the agl_shell interface,
+ while there's another shell client already present.
+
+ The client should first bind to this interface and then inform the
+ compositor with the 'doas_shell_client' request and it wants to bind to
+ the agl_shell interface. The client is still expected, if using a new
+ version of the agl_shell interface, to wait for the 'bound_ok' and
+ 'bound_fail' events before issueing any other requests/events.
+
+ Note that this interface has its limitations, and the compositor would
+ still refuse the act for 'set_panel' or 'set_background' requests
+ of the agl_shell interface if there's already a client that used them.
+
+ Any other requests or events should be delievered and handled as it would
+ a client bound to the agl_shell interface.
+ </description>
+
+ <enum name="doas_shell_client_status">
+ <entry name="success" value="0"/>
+ <entry name="failed" value="1"/>
+ </enum>
+
+ <request name="destroy" type="destructor">
+ <description summary="destroys the factory object">
+ Call the destructor once you're ready with agl_shell_ext interface.
+ This would reset the state and would make any requests made
+ on the agl_shell interface be terminated. The client would need
+ to bind again the agl_shell_ext and issue a 'doas_shell_client'
+ request.
+ </description>
+ </request>
+
+ <request name="doas_shell_client">
+ <description summary="Informs the compositor it wants to bind to the
+ agl_shell interface">
+ Prior to binding to agl_shell interface, this request would inform
+ the compositor that it wants to gain access the agl_shell interface.
+ The client is expected to wait for 'doas_shell_client_done' event and
+ check for a successful status before going further with binding to
+ the agl_shell interface.
+ </description>
+ </request>
+
+ <event name="doas_done">
+ <description summary="event sent as a reply to doas_shell_client">
+ The client should check the status event to verify that the
+ compositor was able to handle the request.
+ </description>
+ <arg name="status" type="uint" enum="doas_shell_client_status"/>
+ </event>
</interface>
</protocol>
Code Review / src / agl-compositor.git / blobdiff