CODEWITHSUNDEEP
gwtdrag-and-dropfirefox-addon
weijenli
weijenli

Reputation: 75

Gwt DragStartHandler does not work in IE and Firefox

I have a FocusPanel in which contains a Label. And then I add the DragStartHandler to FocusPanel like the code below:

focusPanel.addDomHandler(new DragStartHandler() {
            @Override
            public void onDragStart(DragStartEvent event)
            {
                focusPanel.getElement().getStyle().setBackgroundColor("yellow");
                event.getDataTransfer().setDragImage(focusPanel.getElement(), 10, 10);
                dragSourceIndex = getFocusPanelIndex(focusPanel);
            }
        }, DragStartEvent.getType());

I can drag this in Chrome, but cannot do this in IE and Firefox. Moreover, if I highlight the focuspanel's text first, then I can drag when it's highlighted.

Does anyone know what is wrong?

Thanks.

Upvotes: 1

Views: 161

Answers (1)

weijenli
weijenli

Reputation: 75

I make a go-around by adding highlight on MouseDownEvent.

focusPanel.addMouseDownHandler(new MouseDownHandler() {

            @Override
            public void onMouseDown(MouseDownEvent event)
            {
                markText(focusPanel.getWidget().getElement());
            }
        });

The markText method is learn from here: Set selected text in GWT (in order to make copy paste easier)

This is a hacking but at least works. Now the issue is, the "drop" events are not happening in IE. I use IE 11.

Upvotes: 1

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