This data source is no longer valid. There are several reasons why
this could happen:
- The data source has been replaced by another data source.
- The drag-and-drop operation was performed, but the drop destination
did not accept any of the mime types offered through
wl_data_source.target.
- The drag-and-drop operation was performed, but the drop destination
did not select any of the actions present in the mask offered through
wl_data_source.action.
- The drag-and-drop operation was performed but didn't happen over a
surface.
- The compositor cancelled the drag-and-drop operation (e.g. compositor
dependent timeouts to avoid stale drag-and-drop transfers).
The client should clean up and destroy this data source.
For objects of version 2 or older, wl_data_source.cancelled will
only be emitted if the data source was replaced by another data
source.
selection was cancelled
This data source is no longer valid. There are several reasons why this could happen:
- The data source has been replaced by another data source. - The drag-and-drop operation was performed, but the drop destination did not accept any of the mime types offered through wl_data_source.target. - The drag-and-drop operation was performed, but the drop destination did not select any of the actions present in the mask offered through wl_data_source.action. - The drag-and-drop operation was performed but didn't happen over a surface. - The compositor cancelled the drag-and-drop operation (e.g. compositor dependent timeouts to avoid stale drag-and-drop transfers).
The client should clean up and destroy this data source.
For objects of version 2 or older, wl_data_source.cancelled will only be emitted if the data source was replaced by another data source.