Question

i am pretty new to the gwt framework and i am using it for building the ui of my web site,
i would like to make the text box have a text in it that once the user clicks on it for the first time, the text disappears. and in the rest of the time it behaves like a normal text box

any ideas on how to do it?

Answer 1

When you create the textbox, set the default text and add a keyboard listener:

TextBox box = new TextBox();
box.setText("Default Text");
box.addKeyboardListener(this);
defaultValue = true; // this is a global boolean value

Then have your class implement KeyboardListener leaving them all blank except:

public void onKeyPress(Widget arg0, char arg1, int arg2) 
{
    if(defaultValue)
    {
        box.setText = "";
        defaultValue = false;
    }
}