Question

I tried to implement ProvidesResize interface to com.google.gwt.user.client.ui.AbsolutePanel. Then I implemented RequiresResize to its supposed childs but it seems like method onResize() fails to be called or I didn’t get it 🙁

So my question is… How to catch was an AbsolutePanel child widget resized or not and is it possible to?

P.S.
GWT 2.2/2.3

Answer 1

Your panel itself could implement the RequiresResize interface and have the onResize() method do something like this (copied from DeckLayoutPanel):

  public void onResize() {
    for (Widget child : getChildren()) {
      if (child instanceof RequiresResize) {
        ((RequiresResize) child).onResize();
      }
    }
  }

Now if you make your panel a child of a ProvidesResize widget, the chain of onResize() calls should propagate through your panel to the children of your panel.