Interface IDragAndDropService


  • public interface IDragAndDropService
    This interface specifies the API for a service to be used by part authors to access methods which provide support for Drag and Drop operations within the workbench.

    Authors should access this service using the PartSite's getService method, passing this interface as the argument.

    NOTE: This interface it not expected to be implemented by clients; it is provided only to allow access to the service's methods.

    Since:
    3.3
    • Method Detail

      • addMergedDropTarget

        void addMergedDropTarget​(Control control,
                                 int ops,
                                 Transfer[] transfers,
                                 DropTargetListener listener)
        Causes a drop target to be added to the given control that respects the existing site's drop behaviour in addition to the behaviour being specified for the given control.

        If a transfer type specified for the control matches one used by the site then the control's listener is called (the client is overriding the existing site behaviour which will no longer work).

        NOTE: Site authors must use this method to add drop behaviour; directly adding drop targets using SWT onto a site will cause the standard site behaviour (i.e. dragging files / markers into the EditorSite...) to not work when that editor is active.

        Note that this method may be used more than once should the part author wish to register different drop targets for internal controls (i.e. to support internal DnD).

        Parameters:
        control - The control to add the drop behaviour to
        ops - The Drop operations used by this target
        transfers - The TransferTypes used by this target
        listener - The listener controlling the target's behaviour
      • removeMergedDropTarget

        void removeMergedDropTarget​(Control control)
        Remove any previously 'merged' drop target for this Control
        Parameters:
        control - The control to remove the drop target for