Drag and drop type?
Hey guys,
I'm contributing a section to Team Central and I would like to let people drag and drop work items into that section. When a work item is dropped into my section, I'll pull some information out of it. I've registered by drop target with DND.DROP_COPY | DND.DROP_DEFAULT but I get no notifications when I drop a RTC work item. Regular text works fine. Is there a new type of drop operation that RTC uses? Any help would be greatly appreciated. Thanks! Eric. |
7 answers
Getting feedback for a drop operation depends on the kinds of Transfer you support. Make sure to support LocalSelectionTransfer and URIReferenceTransfer. Those are commonly used in RTC to contain a reference (or the actual selection) of work items. You can find an example in com.ibm.team.fulltext.ide.ui.internal.search.ArtifactSearchResultPage.hookDropSupport().
Ben Foundation & Work Item |
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Great thanks for the help!
Sorry, really dumb question - when you say there is an example in com.ibm.team.fulltext.ide.ui.internal.search.ArtifactSearchResultPage.hookDropSupport what source code are you referring to and where do I get it? Thanks! Eric. |
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I couldn't find any references to URIReferenceTransfer, can you tell me what the fully qualified name of that class is?
Thanks! Eric. |
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Hmm, well I've been able to find a reference to that class and I added it. I didn't realize that the RTC source code was available for download as well - that is incredibly useful.
Unfortunately my drop event still won't fire. I wasn't able to find the exact code that was suggested, but I did find some of the chat code which I believe does the same thing. I pretty much copied the following: final DropTarget target= new DropTarget(fViewTabFolder, DND.DROP_LINK | DND.DROP_DEFAULT); target.setTransfer(new Transfer[] { URIReferenceTransfer.getInstance()}); target.addDropListener(new ChatMeetingDropTargetListener()); But my control does not appear to accept the drop. Am I missing anything? Thanks! Eric. |
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Maybe a better example for you is the com.ibm.team.workitem.rcp.ui.internal.activation.ActiveWorkItemControl.addDropSupport(Control) because it works on Work Items.
A simple example where I get a Link-Feedback when dragging a Work Item over my Table is this code: Table t= new Table(parent, SWT.BORDER); final DropTarget target= new DropTarget(t, DND.DROP_LINK); target.setTransfer(new Transfer[] { LocalSelectionTransfer.getTransfer() }); target.addDropListener(new DropTargetAdapter() { @Override public void dragEnter(final DropTargetEvent event) { validateDrop(event); } @Override public void dragOperationChanged(final DropTargetEvent event) { validateDrop(event); } @Override public void drop(final DropTargetEvent event) { performDrop(event); } @Override public void dropAccept(final DropTargetEvent event) { validateDrop(event); } private void performDrop(final DropTargetEvent event) { event.detail= DND.DROP_LINK; } private void validateDrop(final DropTargetEvent event) { event.detail= DND.DROP_LINK; } }); Ben |
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That worked!!! Thanks for your help, I really appreciate it!
I'm really amazed at how relatively easy it is to extend Eclipse/RTC. This was my first plug-in for Eclipse and all things considered it has been a really pleasant experience. Thanks! Eric. |
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Great to hear that, enjoy :)
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