Question

There is a website which has an iframe including a web application. Let’s assume that the application has a height of 1000px. At the bottom of the application (1000px) there is button. If the user presses the button, then the application changes its view and the new length is only 20px (the rage 20px to 1000px is therefore just white (blank page) ).

My goal is now that when someone presses on that button then the browser should scroll its page to the top (meaning that the scrolling happens outside the iframe. Does anyone know a solution how to do that in gwt (without setting an anchor in the page holding the iframe)?

Many thx in advance!

Answer 1

Finally I found the solution. Set at the top of your iframe an anchor and call it with:

public static native void scrollToTop()  /*-{

    $wnd.location.href = '#anchorName';

}-*/;

This will also force the parent window (the window holding the iframe) to scroll to that anchor.