18751 – [Transforms] Textfields behave badly with transforms (caret, focus ring, redraw)

NEW 18751

[Transforms] Textfields behave badly with transforms (caret, focus ring, redraw)

https://bugs.webkit.org/show_bug.cgi?id=18751

Summary [Transforms] Textfields behave badly with transforms (caret, focus ring, redraw)

Dave Hyatt

Reported 2008-04-25 20:33:41 PDT

When you transform a textfield, e.g., rotate it 10 degrees, you see horrible repaint problems. (1) The caret doesn't blink properly. (2) You see two focus rings, one offset from the other (3) The contents don't always update right

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Add attachment proposed patch, testcase, etc.

Simon Fraser (smfr)

Comment 1 2008-10-24 14:40:14 PDT

*** Bug 20772 has been marked as a duplicate of this bug. ***

Simon Fraser (smfr)

Comment 2 2008-10-24 14:40:24 PDT

Bug 20772 has a testcase.

Simon Fraser (smfr)

Comment 3 2008-10-27 15:34:15 PDT

Split off focus ring drawing into bug 21906.

Simon Fraser (smfr)

Comment 4 2008-10-27 15:45:07 PDT

Split off caret drawing into bug 21907.

Simon Fraser (smfr)

Comment 5 2008-11-06 18:15:03 PST

Content updating is broken by LayoutState issues. When typing in a textarea, FrameView::layout() is laying out a subtree, in which case it pushes a LayoutState for the root (which is ignoring transforms). RenderBox::computeAbsoluteRepaintRect() then picks up that LayoutState and gets an offset that ignores transforms.

Simon Fraser (smfr)

Comment 6 2012-05-16 10:11:36 PDT

*** Bug 86626 has been marked as a duplicate of this bug. ***

Radar WebKit Bug Importer

Comment 7 2012-08-23 10:11:35 PDT

<rdar://problem/12160675>

Simon Fraser (smfr)

Comment 8 2012-08-28 16:26:37 PDT