[Webkit-unassigned] [Bug 259424] New: [IFC] Modern path of RenderBlockFlow::paintInlineChildren should respect subtreePaintRoot

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=259424

            Bug ID: 259424
           Summary: [IFC] Modern path of
                    RenderBlockFlow::paintInlineChildren should respect
                    subtreePaintRoot
           Product: WebKit
           Version: Safari 16
          Hardware: All
                OS: macOS 13
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: bunnnywong at gmail.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Created attachment 467090

  --> https://bugs.webkit.org/attachment.cgi?id=467090&action=review

text recognition results causing incorrect drag preview images

Possibly related bugs:
* https://bugs.webkit.org/show_bug.cgi?id=227630
* https://bugs.webkit.org/show_bug.cgi?id=237446

The modern path of RenderBlockFlow::paintInlineChildren should respect subtreePaintRoot.

As demonstrated by the attached screen recording, one of the specific behaviors caused by this issue is that text recognition results causing incorrect drag preview images for elements with draggable="true". It happens due to the results are rendered as large text and then shrinked down by transforms.

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