[Webkit-unassigned] [Bug 47514] CSS transforms should affect scrolling

Tue Oct 12 12:49:22 PDT 2010

https://bugs.webkit.org/show_bug.cgi?id=47514

--- Comment #5 from Beth Dakin <bdakin at apple.com>  2010-10-12 12:49:22 PST ---
(In reply to comment #3)
> I wouldn't hesitate about fixing the scrollIntoView-transformed test. I think I wrote that, and wasn't completely sure it was testing everything I was trying to fix at the time.

Hi Dean! Thanks for the input. You did write that test, so it's good to know you didn't have something else in mind that is now broken.

(In reply to comment #4)
> I'm not so sure that transformed elements should always participate in the scrollbariness of content. I worry that this fix will cause elements that intentionally off the page to cause scrollbars to appear. eg. what will happen if I translateX(-1000px) ?
> 
> (note that I didn't apply the patch so I'm not sure if your fix will actually do what I fear :)

The patch only adds scrollbars when the transformed content moves off of the right or bottom edge of the screen. In this way, it matches, say, absolutely positioned content. If an element is positioned absolutely to start at a negative coordinate, then scrollbars are not added, but they are for positive coordinates that are beyond the current window. And that's what this patch does for transformed content as well.

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