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Google Web Toolkit Solutions: More Cool Useful Stuff by Rob Gordon, David Geary

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Solution 6. Drag and Drop

The ultimate in user interactivity, drag and drop is taken for granted in desktop applications but is a litmus test of sorts for web applications: If you can easily implement drag and drop with your web application framework, then you know you’ve got something special.

Until now, drag and drop for web applications has, for the most part, been limited to specialized JavaScript frameworks such as Script.aculo.us and Rico.[1] No more. With the advent of GWT, we have drag-and-drop capabilities in a Java-based web application framework. Although GWT does not explicitly support drag and drop (drag and drop is an anticipated feature in the future), it provides us with all the necessary ingredients to make our own drag-and-drop ...

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