Indicate that the client can accept the given mime type, or
NULL for not accepted.
For objects of version 2 or older, this request is used by the
client to give feedback whether the client can receive the given
mime type, or NULL if none is accepted; the feedback does not
determine whether the drag-and-drop operation succeeds or not.
For objects of version 3 or newer, this request determines the
final result of the drag-and-drop operation. If the end result
is that no mime types were accepted, the drag-and-drop operation
will be cancelled and the corresponding drag source will receive
wl_data_source.cancelled. Clients may still use this event in
conjunction with wl_data_source.action for feedback.
accept one of the offered mime types
Indicate that the client can accept the given mime type, or NULL for not accepted.
For objects of version 2 or older, this request is used by the client to give feedback whether the client can receive the given mime type, or NULL if none is accepted; the feedback does not determine whether the drag-and-drop operation succeeds or not.
For objects of version 3 or newer, this request determines the final result of the drag-and-drop operation. If the end result is that no mime types were accepted, the drag-and-drop operation will be cancelled and the corresponding drag source will receive wl_data_source.cancelled. Clients may still use this event in conjunction with wl_data_source.action for feedback.