Google I/O 2011: GWT + HTML5: A web developers dream!
Why Stack Overflow recommends it
Stack Overflow users link it as the main walkthrough for HTML5 drag and drop in GWT 2.4, including a specific segment around the 23-minute mark.
Recommended by 2 people across 2 different months, 2011 to 2013.
What it is
A 40-minute Google I/O 2011 session by John Labanca on using HTML5 features inside Google Web Toolkit (GWT) applications. It is demo-heavy, covering Canvas for visualizations, native drag and drop, CSS3 and more.
What people said
Recommends tim_a · 2011-05 · Stack Overflow · on “gwt : drag n drop tree”
In GWT 2.4 there will be drag and drop support I think. With this new feature you can add drag and drop support to almost every widget. Right now 2.4 is in bèta. At Google I/O there was a sessions about GWT and drag and drop. You can watch it here: [this video]
Recommends Andrea Boscolo · 2013-04 · Stack Overflow · on “in Gwt, there are 2 different packages (or 2 options) for doing drag n Drop? Which one is better?”
The GWT drag&drop implementation is based on the HTML5 D&D API [LINK] . Such API basically allows you to transfer data using native drag&drop. That means you can, for instance, drag things from outside the browser. Simplifing, you need to setup a drag element, a drop target and the DataTransfer object which will hold the actual data to transfer. I guess it can also be used to simulate drag&drop of DOM elements (say, widgets) within an app by creating&destroying (on dragstart and on dragend ), but its purpose is different. Since this API is rather new, not every browser natively support it. See [LINK] . See also this video [this video] along with its presentation [LINK] to get you started. On the
Cites Chan Le · 2011-07 · Stack Overflow · on “get drag object in GWT 2.4”
I heard that drag and drop feature has finally come to GWT 2.4, i know how to use it through this video [this video] However, that video only show using drag and drop to transfer string. I want to get the object that is being drag, is it possible to do so?
Cites Vinnie · 2012-01 · Stack Overflow · on “GWT draggable CellTable cells”
I have a GWT CellTable - it's a pretty simple table with just a single string column. What I'd like to do is drag rows of this table to a drop target (actually another table). I've been trying to figure out how to attach a draggable event as described at ~23:00 of this video [this video] . To which CellTable element can I set the draggable flag to TRUE. I haven't gotten this far yet, but I'm sure I'll soon face a similar issue in setting the drop handler on the target table. If someone could post an example or point me in the right direction, I'd be grateful.