[webkit-reviews] review requested: [Bug 34923] Incorrect client rects for blocks the span multiple columns and their descendants : [Attachment 48732] Allow offsetFromContainer() to return the right offset for a given point in the multi-column case, and pass it the point of interest

[bugzilla-daemon at webkit.org]

mitz at webkit.org has asked  for review:
Bug 34923: Incorrect client rects for blocks the span multiple columns and
their descendants
https://bugs.webkit.org/show_bug.cgi?id=34923

Attachment 48732: Allow offsetFromContainer() to return the right offset for a
given point in the multi-column case, and pass it the point of interest
https://bugs.webkit.org/attachment.cgi?id=48732&action=review

------- Additional Comments from mitz at webkit.org
This is obviously just a better approximation of correct behavior in the
multi-column case, as it still assumes that a quad is mapped to absolute
coordinates via a continuous transform. In the multi-column case, the transform
is only piecewise-continuous. So this just picks the piece that applies to some
point in the quad, rather than always picking the first piece.