[Webkit-unassigned] [Bug 42815] getBoundingClientRect Broken for SVG Elements

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=42815


Cosmin Truta <ctruta at chromium.org> changed:

           What    |Removed                     |Added
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  Attachment #69153|                            |review?, commit-queue?
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--- Comment #19 from Cosmin Truta <ctruta at chromium.org>  2010-09-28 19:12:11 PST ---
Created an attachment (id=69153)
 --> (https://bugs.webkit.org/attachment.cgi?id=69153)
Fix and layout test for zoomed elements

getBoundingClientRect finally works correctly with zooming.

There are still off-by-one errors when zoomed arbitrarily. I'm pretty sure that's because the bounding rectangle is adjusted for absolute zoom *after* it is converted to IntRect. The roundoff errors are significant enough to cause off-by-one, and sometimes even off-by-two errors from time to time. The layout test that I included is okay, though, because zooming is done at well-behaved ratios (50% and 200%).

I placed the layout test in the css3/ directory, rather than in an svg/ subdirectory, because I discovered that the zoom attribute hasn't been tested with getBoundingC..., not even for HTML elements.

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