[Webkit-unassigned] [Bug 275870] New: AX: lineTextMarkerRangeForTextMarker fails on first character of line in Google Docs

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Jun 25 13:44:13 PDT 2024


https://bugs.webkit.org/show_bug.cgi?id=275870

            Bug ID: 275870
           Summary: AX: lineTextMarkerRangeForTextMarker fails on first
                    character of line in Google Docs
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dm_mazzoni at apple.com
                CC: andresg_22 at apple.com,
                    webkit-bug-importer at group.apple.com

I created this minimal repro:

<div id="textcontrol" contenteditable="true">
  First line of text
  <span contenteditable="false"><br></span>
  Second line of text
  <span contenteditable="false"><br></span>
  Third line of text
  <span contenteditable="false"><br></span>
  Fourth line of text
</div>

If you arrow up and down this text with VoiceOver on, the correct line is not announced when you're on the first character of a line. At any other character index it works fine. The API that's failing is lineTextMarkerRangeForTextMarker, it's returning a range of length 0 or 1 when the marker is at the beginning of the line.

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