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Editorial Team
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Asked: 2026-06-13T05:08:53+00:00

I’m trying to capture dragover and drop events. Right now I’m capturing those events

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I’m trying to capture dragover and drop events. Right now I’m capturing those events adding a dom handler to my RootLayoutPanel:

dragOverHandler = RootLayoutPanel.get().addBitlessDomHandler(this, DragOverEvent.getType());
dropHandler = RootLayoutPanel.get().addBitlessDomHandler(this, DropEvent.getType());

The problem is this code does not capture the events when showing a popup and the drag/drop is over the popup itself or the glass around it.

I have also tried using a native preview handler, but it seems it is not called on dragover nor drop events:

Event.addNativePreviewHandler(new Event.NativePreviewHandler() {            
    @Override
    public void onPreviewNativeEvent(NativePreviewEvent event) {
        GWT.log(event.getNativeEvent().getType());  
    }
});

Is there a straight way to capture all dragover and drop events in my app?

Thanks

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1 Answer

  1. Editorial Team

    Try using RootPanel.get() instead of RootLayoutPanel.get().

    FYI, RootLayoutPanel.get() adds the RootLayoutPanel singleton to the RootPanel.get(); RootPanel.get() wraps the document’s <body> inside a RootPanel, so it should capture everything (provided the body fills the viewport, which the RootLayoutPanel ensures).

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