Is it possible maximize the window without JSNI

I'm using this function to maximize the window:

/**
* Resize the principal window
*/
public static native void resizeWindow() /*-{
      top.window.moveTo(0,0);
      top.window.resizeTo(screen.availWidth,s开发者_如何学Pythoncreen.availHeight);
}-*/;

is it possible to maximize the browser window without JSNI ?

Check out the built in Window.moveTo(), and Window.resizeTo()