Creates a new gtk.drop_target_async.DropTargetAsync object.
Connect to Accept signal.
Connect to DragEnter signal.
Connect to DragLeave signal.
Connect to DragMotion signal.
Connect to Drop signal.
Gets the actions that this drop target supports.
Gets the data formats that this drop target accepts.
Sets the drop as not accepted on this drag site.
Sets the actions that this drop target supports.
Sets the data formats that this drop target will accept.
Returns the event that is currently being handled by the controller.
Returns the device of the event that is currently being handled by the controller.
Returns the modifier state of the event that is currently being handled by the controller.
Returns the timestamp of the event that is currently being handled by the controller.
Gets the name of controller.
Gets the propagation limit of the event controller.
Gets the propagation phase at which controller handles events.
Returns the gtk.widget.Widget this controller relates to.
Resets the controller to a clean state.
Sets a name on the controller that can be used for debugging.
Sets the event propagation limit on the event controller.
Sets the propagation phase at which a controller handles events.
Sets a name on the controller that can be used for debugging.
gtk.drop_target_async.DropTargetAsync is an event controller to receive Drag-and-Drop operations, asynchronously.
It is the more complete but also more complex method of handling drop operations compared to gtk.drop_target.DropTarget, and you should only use it if gtk.drop_target.DropTarget doesn't provide all the features you need.
To use a gtk.drop_target_async.DropTargetAsync to receive drops on a widget, you create a gtk.drop_target_async.DropTargetAsync object, configure which data formats and actions you support, connect to its signals, and then attach it to the widget with gtk.widget.Widget.addController.
During a drag operation, the first signal that a gtk.drop_target_async.DropTargetAsync emits is gtk.drop_target_async.DropTargetAsync.accept, which is meant to determine whether the target is a possible drop site for the ongoing drop. The default handler for the ::accept signal accepts the drop if it finds a compatible data format and an action that is supported on both sides.
If it is, and the widget becomes a target, you will receive a signal@Gtk.DropTargetAsync::drag-enter signal, followed by signal@Gtk.DropTargetAsync::drag-motion signals as the pointer moves, optionally a gtk.drop_target_async.DropTargetAsync.drop signal when a drop happens, and finally a signal@Gtk.DropTargetAsync::drag-leave signal when the pointer moves off the widget.
The ::drag-enter and ::drag-motion handler return a gdk.types.DragAction to update the status of the ongoing operation. The ::drop handler should decide if it ultimately accepts the drop and if it does, it should initiate the data transfer and finish the operation by calling gdk.drop.Drop.finish.
Between the ::drag-enter and ::drag-leave signals the widget is a current drop target, and will receive the gtk.types.StateFlags.DropActive state, which can be used by themes to style the widget as a drop target.