CODEWITHSUNDEEP
javagwt
Dragon
Dragon

Reputation: 2481

How to handle focus event of GWT TextInputCell?

I have a DataGrid with a column containing TextInputCell. When I focus on this cell a button must become active. In order to do this I have to catch some focus event.

TextInputCell API contains onBrowserEvent(Context context, Element parent, String value, NativeEvent event, ValueUpdater<String> valueUpdater). Great, I could catch any event with this, I thought. But the first problem I ran at is that onBrowseEvent is thrown many times in a row when I loose/get focus.

It seems that this problem is typical, but I couldn't either come to or find any solution to solve this. I'd appreciate any help with it.

Here is where I'm going to catch "focus" event:

MyTextInputCell cell = new MyTextInputCell() {
    @Override
    public void onBrowserEvent(Context context, Element parent, String value, NativeEvent event, ValueUpdater<String> valueUpdater) {
        super.onBrowserEvent(context, parent, value, event, valueUpdater);
        //Event handling is expected to be here
    }
};

Upvotes: 0

Views: 911

Answers (2)

maneesh
maneesh

Reputation: 1701

I would recommend adding a cell preview handler and then check the event type against the constants defined in BrowserEvents

Upvotes: 0

Suresh Atta
Suresh Atta

Reputation: 122026

Something like this ??

 String eventType = event.getType();
   if ("focus".equals(eventType)) {
       // dosomething           
  }

Upvotes: 1

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