[Webkit-unassigned] [Bug 90670] Vertically center non-anchored <dialog> elements

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=90670


Ojan Vafai <ojan at chromium.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jchaffraix at webkit.org,
                   |                            |tony at chromium.org




--- Comment #7 from Ojan Vafai <ojan at chromium.org>  2012-07-31 13:43:36 PST ---
(In reply to comment #6)
> It's looking tricky to get a non-fixed position element to be positioned like a fixed element.

Why is it not a fixed position element? Don't we set position:fixed in html.css?

> Now I'm trying to alter code that gets called during layout like RenderBox::computePositionedLogicalHeight to use an effective top value for getting the dialog to be centered. This will mean triggering layout on a scroll, for dialog elements.

I think you probably need a RenderDialog class that subclasses RenderBlock and overrides layout to set the static inline/block positions (e.g. see adjustPositionedBlock) and the continue with RenderBlock's regular layout.

You might need to do some more to get it to reposition on resizing the window. Actually, it is supposed to reposition when you resize the window?

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