> I'm trying to use the provided PopupPanel.center() method to center a
> popup panel on the screen. This works fine on Opera and Safari
> centering the popup relative to the browser window. In Firefox though
> it centers the popup relative to the entire page.

> I've tried to implement my own center method as follows:

> private void center() {
>         popup.setPopupPositionAndShow(new PositionCallback() {

>                 public void setPosition(int offsetWidth, int offsetHeight)
>                 {
>                         int[] winSize = windowSize();
>                         int left = (winSize[0] - offsetWidth) >> 1;
>                         int top = (winSize[1] - offsetHeight) >> 1;
>                         popup.setPopupPosition(Window.getScrollLeft() + left,
> Window.getScrollTop() + top);
>                 }

>         });

> }

> public final native int[] windowSize() /*-{
>         var myWidth = 0, myHeight = 0;
>         if (typeof(window.innerWidth) == 'number') {
>                 //Non-IE
>                 myWidth = window.innerWidth;
>                 myHeight = window.innerHeight;
>         } else if (document.documentElement &&
>                 (document.documentElement.clientWidth ||
> document.documentElement.clientHeight)) {
>                 //IE 6+ in 'standards compliant mode'
>                 myWidth = document.documentElement.clientWidth;
>                 myHeight = document.documentElement.clientHeight;
>         } else if (document.body && (document.body.clientWidth ||
> document.body.clientHeight)) {
>                 //IE 4 compatible
>                 myWidth = document.body.clientWidth;
>                 myHeight = document.body.clientHeight;
>         }
>         return [myWidth, myHeight];

> }-*/;

> But this doesn't work as the windowSize() method returns 0 for reasons
> I don't know.

> > Hi All,

> > I'm trying to use the provided PopupPanel.center() method tocentera
> > popup panel on the screen. This works fine on Opera and Safari
> > centering the popup relative to the browser window. In Firefox though
> > it centers the popup relative to the entire page.

> > I've tried to implement my owncentermethod as follows:

> > private voidcenter() {
> >         popup.setPopupPositionAndShow(new PositionCallback() {

> >                 public void setPosition(int offsetWidth, int offsetHeight)
> >                 {
> >                         int[] winSize = windowSize();
> >                         int left = (winSize[0] - offsetWidth) >> 1;
> >                         int top = (winSize[1] - offsetHeight) >> 1;
> >                         popup.setPopupPosition(Window.getScrollLeft() + left,
> > Window.getScrollTop() + top);
> >                 }

> >         });

> > }

> > public final native int[] windowSize() /*-{
> >         var myWidth = 0, myHeight = 0;
> >         if (typeof(window.innerWidth) == 'number') {
> >                 //Non-IE
> >                 myWidth = window.innerWidth;
> >                 myHeight = window.innerHeight;
> >         } else if (document.documentElement &&
> >                 (document.documentElement.clientWidth ||
> > document.documentElement.clientHeight)) {
> >                 //IE 6+ in 'standards compliant mode'
> >                 myWidth = document.documentElement.clientWidth;
> >                 myHeight = document.documentElement.clientHeight;
> >         } else if (document.body && (document.body.clientWidth ||
> > document.body.clientHeight)) {
> >                 //IE 4 compatible
> >                 myWidth = document.body.clientWidth;
> >                 myHeight = document.body.clientHeight;
> >         }
> >         return [myWidth, myHeight];

> > }-*/;

> > But this doesn't work as the windowSize() method returns 0 for reasons
> > I don't know.

> You use 'window' and 'document', which refer to the hidden iframe's
> window and document your GWT code is loaded in (your
> <permutation>.cache.html). You should always use $wnd and $doc in JSNI
> code.

> (and I agree PopupPanel.center() should use window.innerHeight/Width
> where possible; at least when the document is smaller than the window;
> have you filed a bug?)

> (and I agree PopupPanel.center() should use window.innerHeight/Width
> where possible; at least when the document is smaller than the window;
> have you filed a bug?)

> > (and I agree PopupPanel.center() should use window.innerHeight/Width
> > where possible; at least when the document is smaller than the window;
> > have you filed a bug?)

> I just changed some popups (DialogBox) from setPosition+show tocenter
> () and they display correctly in FF3.5, even when the document is
> smaller than the window.
> The page is in "standards mode", in case it changes something (which I
> believe it could). And I'm using GWT 2.0 RC2 (I'm setting
> setGlassEnabled(true) and the glass correctly overlays everything: the
> whole viewport when the document is small than the window, or the
> whole document when there's a scrollbar)