OK, thanks for the fast answer Thomas. I guess it's not good news though.
Any recommendations on how to distinguish between objects being dragged
over a widget using the dragovervent?
On Friday, 27 July 2012 15:52:29 UTC+2, Thomas Lefort wrote:
>
> I have an issue with DragOverEvent.
>
> At drag start I set my event data to a certain value, as follows:
>
> panel.addDomHandler(new DragStartHandler() {
> @Override
> public void onDragStart(DragStartEvent event) {
> event.setData("text", ResourceWidget.this.resource.getClass().getName());
> event.getDataTransfer().setDragImage(panel.getElement(), 10, 10);
> ... some more code
> }
> }, DragStartEvent.getType());
>
> On hover and on drop I test the value of the event data as follows:
>
> campaignMap.addDomHandler(new DragOverHandler() {
> @Override
> public void onDragOver(DragOverEvent event) {
> event.preventDefault();
> if(event.getData("text") != null) {
> (1) ... some more code
> }
> }
> }, DragOverEvent.getType());
> campaignMap.addDomHandler(new DropHandler() {
> @Override
> public void onDrop(DropEvent event) {
> event.preventDefault();
> if(event.getData("text") != null) {
> (2) ... some more code
> }
> }
> }, DropEvent.getType());
> The issue is that with the hover event I get always null for my data value
> whilst for the drop I get the right value, ie (1) is never run and (2) runs.
>
> In the end the drag and drop works, but I would also like to make use of
> the drag event to display some information based on the value of the data.
>
> Any idea? is this a bug?
>
> Thanks,
>
> Thomas
>
>
--
You received this message because you are subscribed to the Google Groups
"Google Web Toolkit" group.
To view this discussion on the web visit
https://groups.google.com/d/msg/google-web-toolkit/-/pf6K4GpXNQ4J.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/google-web-toolkit?hl=en.
