JSNI to access the "types" property of the DataTransfer object?
(along with using specific types to distinguish different types of data,
rather than inferring from the content for a single type)
On Friday, July 27, 2012 5:27:22 PM UTC+2, Thomas Lefort wrote:
>
> 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
>>
>>
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