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Java Source Code / Java Documentation » IDE Eclipse » ui » org.eclipse.ui.navigator

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Class Diagram

Java Document (Java Doc)

org.eclipse.ui.navigator .INavigatorDnDService

All known Subclasses:   org.eclipse.ui.internal.navigator.dnd .NavigatorDnDService,
INavigatorDnDService
public interface INavigatorDnDService (Code)
Provides instances of CommonDragAdapterAssistant and CommonDropAdapterAssistant for the associated INavigatorContentService .
Clients should only take note of this Service they are are using the INavigatorContentService in the context of a viewer which is not or does not extend CommonViewer . Clients should take a look at the initialization of the DND support in the CommonViewer if they wish to support this capability in their own viewers.

This interface is not intended to be implemented by clients.

See Also:   CommonDragAdapter
See Also:   CommonDragAdapterAssistant
See Also:   CommonDropAdapter
See Also:   CommonDropAdapterAssistant
See Also:   CommonViewer
See Also:   INavigatorContentService.getDnDService
See Also:    Drag * and Drop: Adding Drag and Drop to an SWT Application
See Also:    Drag * and Drop in the Eclipse UI (Custom Transfer Types)
since:
   3.2

Method Summary
void bindDragAssistant(CommonDragAdapterAssistant anAssistant)
     Clients may choose to programmatically bind drag assistants to an instance of the DND Service.
CommonDropAdapterAssistant[] findCommonDropAdapterAssistants(Object aDropTarget, TransferData theTransferType)
     This method returns an array of CommonDropAdapterAssistant from content extensions that are visible and active for the associated INavigatorContentService .
CommonDropAdapterAssistant[] findCommonDropAdapterAssistants(Object aDropTarget, IStructuredSelection theDragSelection)
     This method returns an array of CommonDropAdapterAssistant from content extensions that are visible and active for the associated INavigatorContentService .
The array should be processed from the first element to the last, asking each extension to CommonDropAdapterAssistant.validateDrop(Objectintorg.eclipse.swt.dnd.TransferData) . The first to successfully validate the drop operation will have the opportunity to CommonDropAdapterAssistant.handleDrop(CommonDropAdapterorg.eclipse.swt.dnd.DropTargetEventObject) handle the drop

Parameters:
  aDropTarget - The target element in the viewer of the drop operation.
Parameters:
  theDragSelection - The drag selection of the current drop operation.
CommonDragAdapterAssistant[] getCommonDragAssistants()
     As part of the org.eclipse.ui.navigator.viewer extension point, clients may explicit extend the support Transfer Types of a particular viewer using the dragAssistant element.

Method Detail
bindDragAssistant
void bindDragAssistant(CommonDragAdapterAssistant anAssistant)(Code)
Clients may choose to programmatically bind drag assistants to an instance of the DND Service. A programmatic binding is not persisted between sessions and is not propagated to other instances of INavigatorContentService with the same id.
Parameters:
  anAssistant - The assistant to bind.

findCommonDropAdapterAssistants
CommonDropAdapterAssistant[] findCommonDropAdapterAssistants(Object aDropTarget, TransferData theTransferType)(Code)
This method returns an array of CommonDropAdapterAssistant from content extensions that are visible and active for the associated INavigatorContentService . The array is sorted by priority, with overrides taken into account.
The array should be processed from the first element to the last, asking each extension to CommonDropAdapterAssistant.validateDrop(Objectintorg.eclipse.swt.dnd.TransferData) . The first to successfully validate the drop operation will have the opportunity to CommonDropAdapterAssistant.handleDrop(CommonDropAdapterorg.eclipse.swt.dnd.DropTargetEventObject) handle the drop

Parameters:
  aDropTarget - The target element in the viewer of the drop operation.
Parameters:
  theTransferType - The transfer type of the current drop operation. An array of CommonDropAdapterAssistants that are definedby the set oforg.eclipse.ui.navigator.navigatorContent/navigatorContentextensions that provide a possibleChildren expressionthat matches the given drop target.

findCommonDropAdapterAssistants
CommonDropAdapterAssistant[] findCommonDropAdapterAssistants(Object aDropTarget, IStructuredSelection theDragSelection)(Code)
This method returns an array of CommonDropAdapterAssistant from content extensions that are visible and active for the associated INavigatorContentService .
The array should be processed from the first element to the last, asking each extension to CommonDropAdapterAssistant.validateDrop(Objectintorg.eclipse.swt.dnd.TransferData) . The first to successfully validate the drop operation will have the opportunity to CommonDropAdapterAssistant.handleDrop(CommonDropAdapterorg.eclipse.swt.dnd.DropTargetEventObject) handle the drop

Parameters:
  aDropTarget - The target element in the viewer of the drop operation.
Parameters:
  theDragSelection - The drag selection of the current drop operation. An array of CommonDropAdapterAssistants that are definedby the set oforg.eclipse.ui.navigator.navigatorContent/navigatorContentextensions that provide a possibleChildren expressionthat matches the given drop target.

getCommonDragAssistants
CommonDragAdapterAssistant[] getCommonDragAssistants()(Code)
As part of the org.eclipse.ui.navigator.viewer extension point, clients may explicit extend the support Transfer Types of a particular viewer using the dragAssistant element. This element defines a class which extends CommonDragAdapterAssistant and can direct the viewer on how to provide different kinds of DND Transfer Types. The array is returned in no particular order. An array of CommonDragAdapterAssistant or an empty array.

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