Thursday, January 19, 2012

Drag and Drop API in GWT 2.4

I am glad to see that GWT team has introduced Drag and Drop support in
GWT 2.4. We have been using SmartGWT just for Drag and Drop
functionality in one module. We are just switching to GWT 2.4 and
tried to implement DnD functionality using GWT 2.4 API. Most of the
API seems pretty friendly. But I am highly surprised to learn that
none of the panels (except SimplePanel) supports drag & drop. Panels
(Absolute, Vertical, etc.) play an extremely importat role in GWT. Was
it an oversight not support drag and drop for complex panels? In our
requirements, panels act as drop targets.

I understand GWT drag and drop is still an experimental/developmental
API. I hope my above coments would help improve it further.

Can anybody suggest any panel or widget that could act as drop target
and also can hold (as parent) for several child widgets?
Alternatively, is there a simple way to introduce drag and drop
behavior to AbsolutePanel?

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