[Webkit-unassigned] [Bug 266523] New: Invalid coordinates on gesture (and resulting wheel) events inside iframe

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=266523

            Bug ID: 266523
           Summary: Invalid coordinates on gesture (and resulting wheel)
                    events inside iframe
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: InRadar
          Severity: Normal
          Priority: P2
         Component: UI Events
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: a_protyasha at apple.com
                CC: a_protyasha at apple.com,
                    webkit-bug-importer at group.apple.com

`gesture*` events (and resulting wheel events) originating from an embedded iframe have incorrect coordinates. Notably, these coordinates do not account for the transformation between the iframe's coordinate space and the parent document's coordinate space. This is because we do not pass gesture events to subframe event handlers. Let's fix that.

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