Auto-grow / Auto-size TextArea with GwtQuery

Question

This is my code for a TextArea that auto resize (I'm using Errai so TextArea is injected btw):

@Inject
@DataField
TextArea content;

@AfterInitialization
public void afterInit(){
content.getElement().setAttribute("wrap","off");

        content.addKeyUpHandler(new KeyUpHandler() {
            @Override
            public void onKeyUp(KeyUpEvent event) {
                $(content)
                        .css("overflow-y", "hidden")
                        .css("overflow-x", "auto")
                        .css(CSS.HEIGHT, "300px")
                        .css(CSS.HEIGHT, DOM.getElementPropertyInt(content.getElement(),"scrollHeight")  + "px");
            }
        });

        content.addValueChangeHandler(new ValueChangeHandler<String>() {
            @Override
            public void onValueChange(ValueChangeEvent<String> event) {
                $(content)
                        .css("overflow-y", "hidden")
                        .css("overflow-x", "auto")
                        .css(CSS.HEIGHT, "300px")
                        .css(CSS.HEIGHT, DOM.getElementPropertyInt(content.getElement(),"scrollHeight")  + "px");
            }
        });

        content.addMouseUpHandler(new MouseUpHandler() {
            @Override
            public void onMouseUp(MouseUpEvent event) {
                $(content)
                        .css("overflow-y", "hidden")
                        .css("overflow-x", "auto")
                        .css(CSS.HEIGHT, "300px")
                        .css(CSS.HEIGHT, DOM.getElementPropertyInt(content.getElement(),"scrollHeight")  + "px");
            }
        });
}

This code works fine with few problems I want to take note:

• The code does not look elegant, code is redundant, is there a way to simplify it
• Typing makes the TextArea auto-grow, also CTRL + V command also makes it grow with the content, however RIGHT-CLICK + Paste item in context menu does not auto grow you have to click again the TextArea the second time to trigger it to grow.
• When the TextArea grows it's quite steep, is it possible to have a smooth effect?