How to make gwt's RichTextArea detect content pasting and cutting events?

[Alex Luya]

Blew code can make RichTextArea auto-grow-or-shrink vertically based on
KeyUp event,and question is how to do same thing when user paste or cut
content in or out(Google plus has implemented this).MouseUp and
CONTEXTMENU events have been tried,got no luck.Can anybody give a
solution?Thanks.

public AutoResizeTextArea()
{
    new Timer()
    {
        @Override
        public void run()
        {
            (doc = ((FrameElement)
getElement().cast()).getContentDocument()).getBody()
                    .setAttribute("style",
"word-wrap:break-word;overflow:hidden;");
        }
    }.schedule(100);
}


@Override
public void onBrowserEvent(Event event)
{
    switch (DOM.eventGetType(event))
    {
        case Event.ONKEYUP:
            adjustHeight();
            break;
    }
}

private void adjustHeight()
{
    if (doc.getDocumentElement()
            .getOffsetHeight() != doc.getClientHeight())
    {
        setHeight((doc.getDocumentElement()
                .getOffsetHeight() + 19) + "px");
    }
}

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