drag_action_requested
Description:
public signal int drag_action_requested (DragContext context, File dest_file, List<File> source_file_list)
When the user starts a drag-and-drop operation and the sidebar needs to ask the application for which drag action to perform, then the sidebar will emit this signal.
The application can evaluate the context for customary actions, or it can check the type of the files indicated by
source_file_list against the possible actions for the destination dest_file.
The drag action to use must be the return value of the signal handler.
Parameters:
| context |
DragContext with information about the drag operation |
| dest_file |
File with the tentative location that is being hovered for a drop |
| source_file_list |
List of File that are being dragged |
Returns:
|
The drag action to use, for example, COPY or
MOVE, or 0 if no action is allowed here (i.e. drops are not allowed in
the specified |