Trigger button on ENTER inside a TextBox?

[membersound]

Hi,

I have a popup with a bunch of TextBox and TextArea fields. Also 3 Buttons like Save, Cancel, Reset.
For the TextBoxes I would like to trigger the Save action if ENTER is hit while inside a TextBox (not for the TextAreas).

Would I have to register a KeyDownHandler for all the TextBoxes (which would be lots of boilerplate code)? Or is there anything native in GWT catching ENTER key in TextBoxes?

[Jens]

Do you use UiBinder for the DialogBox content widget? If so you can add more than one widget to @UiHandler:

@UiHandler({"box1", "box2", "box3"})

void maybeTriggerSave(KeyUpEvent event) {

  //check for ENTER and trigger save

}

Without UiBinder the above is equivalent to:

KeyUpHandler maybeTriggerSaveOnKeyUp = new KeyUpHanlder() { ...... };

box1.addKeyUpHandler(maybeTriggerSaveOnKeyUp);

box2.addKeyUpHandler(...)

....

If you instantiate the TextBoxes yourself you could replace "new TextBox()" with "createTextBox()" and add the key handler inside that method.

Alternatively you could listen for Key events on your content widget (addDomHandler()) of your DialogBox and then figure out if the event source was a TextBox and not a TextArea.

-- J.

[K vfdsdfbsdb]

sure you must add keyListener for all TextBox .
But if you create one method,it 's smart.

example for

private void addListeners(List<TextBox> textboxs ,Listener listener){
for(int i=0;i<textboxs.size;i++){
     textboxs.get(i).addKeyListener(listener);
}
}

2013/03/14 7:02 "membersound" <kodyr...@gmail.com>:

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[Kody]

Thanks Jens. Yes I use uibinder, did not know I can register more than one widget to the same handler method. Will go for this approach.

2013/3/14 K vfdsdfbsdb <kazu...@gmail.com>

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