As its name suggests, PreviewNativeEvent *previews* the events, so it indeed runs before the event is dispatched to your code.
-- You'll want to listen to events that bubble up to the uppermost level (without being stopped by other handlers in between, such as your widget).
You can easily listen at the <body> level using RootPanel.get().addDomHandler(new KeyDownListener() { … }, KeyDownEvent.getType()) and hope it's enough (listening at the document or window level would require JSNI or using the experimental Elemental library)
On Thursday, April 17, 2014 10:59:58 AM UTC+2, Alex Ph wrote:
On Thursday, April 17, 2014 10:59:58 AM UTC+2, Alex Ph wrote:
Hi all,
I have some widgets with keyDown-Bindings (e.g. F11). These keyDown bindings only work when the widget got the focus. If the user leaves the focus F11 triggers the browser behaviour (fullscreen).
Now I tried to deactivate the global keybindings by adding this code inside the EntryPoint:Event.addNativePreviewHandler(new Event.NativePreviewHandler() {
@Override
public void onPreviewNativeEvent(final NativePreviewEvent event) {
if (BrowserEvents.KEYDOWN.equals(event.getNativeEvent(). getType())) { //cancel event if KeyCode = F11 } }
});
For global stuff this works fine. But if I hit a key inside my widgets the PreviewNativeEvent will be called first. If I cancel events inside this event now, my local keybinding are not called. Thats how it work "by design".
Therefore my question: Could I hang an eventhandler between GWT-Eventhandling and Browser?
I found new SchedulerImpl().scheduleFinally(new ScheduledCommand()...) but I cannot trigger an event here.
Best Regards
Alex
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