data-control-v1: update protocol to allow NULL selections
All objects created by the manager will still remain valid, until their
appropriate destroy request has been called.
</description>
- <arg name="source" type="object" interface="zwlr_data_control_source_v1"/>
+ <arg name="source" type="object" interface="zwlr_data_control_source_v1"
+ allow-null="true"/>
</request>
<request name="destroy" type="destructor">
previous selection wlr_data_control_offer, if any, upon receiving this
event.
</description>
- <arg name="id" type="object" interface="zwlr_data_control_offer_v1"/>
+ <arg name="id" type="object" interface="zwlr_data_control_offer_v1"
+ allow-null="true"/>
</event>
<event name="finished">
