I've just added Chrstian's mixin which provides Drag & Drop capability to
TreeVirtual, to the legacy_0_7_x branch. The new demo TreeVirtual_6.html
shows how it works.
Note that qx.event.handler.DragAndDropHandler currently does not allow
displaying the drag pointer while over the source icon (at least in the
gecko-specific code). I think a new property should probably be added,
maybe to Widget, for "selfDropOk" which, if true, would allow a drop
operation from some source widget, on that source widget itself.
qx.event.handler.DragAndDropHandler would look at the widget's selfDropOk
property. I've noticed, however, that
qx.event.handler.DragAndDropHandlerhas been moved to a legacy
namespace, to be replaced by the new event
system, and the new event system does not have a DragAndDropHandler. I
don't know how this works in the new event system.
I don't have any more time now to work on incorporating this into trunk.
Sebastian, Fabian, or anyone else... if you want to pick up the ball and run
with it, feel free.
Cheers,
Derrell
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