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getBoxObjectFor deprecated
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arenev...@fdn.fr  
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 More options Mar 4 2008, 1:46 pm
Newsgroups: mozilla.dev.tech.xul
From: arenev...@fdn.fr
Date: Tue, 04 Mar 2008 12:46:29 -0600
Local: Tues, Mar 4 2008 1:46 pm
Subject: getBoxObjectFor deprecated
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Hi,
I need, from firefox chrome, to get screen position of an element in a web
page (to show a popup to a position dependent of that element).  Therefore, I
use:

var doc = element.ownerDocument;
var x = element.getBoundingClientRect().right
        + doc.getBoxObjectFor(doc.documentElement).screenX
        + doc.documentElement.scrollLeft;

and I get right border position.

but firefox3 outputs in console:

> Warning: Use of getBoxObjectFor() is deprecated. Try to use
> element.getBoundingClientRect() if possible.

Problem is getBoundingClientRect will not get screenX. Should I still use
getBoxObjectFor even if deprecated for html elements, or is there anothery way
to get screen position of an element ?

thanks


 
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Neil  
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 More options Mar 5 2008, 6:42 am
Newsgroups: mozilla.dev.tech.xul
From: Neil <n...@parkwaycc.co.uk>
Date: Wed, 05 Mar 2008 11:42:36 +0000
Local: Wed, Mar 5 2008 6:42 am
Subject: Re: getBoxObjectFor deprecated
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arenev...@fdn.fr wrote:
>Problem is getBoundingClientRect will not get screenX. Should I still use getBoxObjectFor even if deprecated for html elements, or is there anothery way to get screen position of an element ?

Are you opening the popup as a result of a mouse event? Perhaps you
could use the screen and client coordinates of the mouse to calculate
the screen position of the element.

--
Warning: May contain traces of nuts.


 
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Neil Deakin  
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 More options Mar 5 2008, 7:54 am
Newsgroups: mozilla.dev.tech.xul
From: Neil Deakin <enndea...@sympatico.ca>
Date: Wed, 05 Mar 2008 07:54:40 -0500
Local: Wed, Mar 5 2008 7:54 am
Subject: Re: getBoxObjectFor deprecated
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arenev...@fdn.fr wrote:
> Hi,
> I need, from firefox chrome, to get screen position of an element in a web
> page (to show a popup to a position dependent of that element).  Therefore, I
> use:

> var doc = element.ownerDocument;
> var x = element.getBoundingClientRect().right
>         + doc.getBoxObjectFor(doc.documentElement).screenX
>         + doc.documentElement.scrollLeft;

> and I get right border position.

It would be better to just use the menupopup's openPopup method which
can position popups relative to other elements for you. The following
opens and aligns a popup with the right edge of an element:

popup.openPopup(element, "end_before");


 
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arenev...@fdn.fr  
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 More options Mar 5 2008, 9:29 am
Newsgroups: mozilla.dev.tech.xul
From: arenev...@fdn.fr
Date: Wed, 05 Mar 2008 08:29:50 -0600
Local: Wed, Mar 5 2008 9:29 am
Subject: Re: getBoxObjectFor deprecated
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Thanks,
at first, I did not want to use openPopup because I want the popup to be
"inside" element, and there is no position argument that can do that.

----------------------
|                    |
| element            |
|               _____|
|_______________|____| <- popup

But I had not noticed aX and aY arguments to that function. So now, I use:

popup.openPopup(element, "end_after", 0 - popupwidth);

I get popupwidth in popupshowing event first time popup appears.

Thanks for your help

arno


 
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