GWT onFocus event not getting triggered on text box

Question

onFocus event is not getting triggered on the text box. I have below code, i am using GWT 2.6.0

When i used the focus handler on text box then its working properly but i also have on browser event where i am not able to trigger focus event.Below is the code for on browser.

@Override
    public void onBrowserEvent( Context context, Element parent, String value, NativeEvent event,
            ValueUpdater<String> valueUpdater )
    {
        String eventType = event.getType();     

      if( BrowserEvents.FOCUS.equals( eventType ) )
        {
           //Do what you want on focus
        }

Answer 1

You should use the methods provided (for your ease) by GWT:

textBox.addFocusHandler(new FocusHandler() {
    @Override
    public void onFocus(FocusEvent event) {
        //Do some operation onFocus event
    }
});

It's part of the HasFocusHandlers which is implemented by quite a few of GWT's widgets. Similar handlers can be found for mouse, keyboard, blur, etc. events.

For completeness sake: if you need to listen directly on the DOM ONFOCUS event on any Widget, you need to call the sinkEvents method first with the appropriate bits/flags (or override it in your widget). You can find the relevant flags in the Event class.