[Webkit-unassigned] [Bug 157190] New: AX: CharacterOffset not working correctly with composed characters and collapsed white spaces

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=157190

            Bug ID: 157190
           Summary: AX: CharacterOffset not working correctly with
                    composed characters and collapsed white spaces
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: n_wang at apple.com
                CC: n_wang at apple.com, webkit-bug-importer at group.apple.com

When navigating emoji by character, CharacterOffset is using wrong offset to create Range and result in the bad behavior.
Same goes for collapsed white spaces, we should use the real space sequence length to create Range.

<rdar://problem/25919648>

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