[Webkit-unassigned] [Bug 193084] New: [iOS] REGRESSION (r239441): Tab cycling to offscreen <select> may not scroll it into view

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=193084

            Bug ID: 193084
           Summary: [iOS] REGRESSION (r239441): Tab cycling to offscreen
                    <select> may not scroll it into view
           Product: WebKit
           Version: WebKit Local Build
          Hardware: iPhone / iPad
                OS: iOS 12
            Status: NEW
          Keywords: NeedsRadar
          Severity: Normal
          Priority: P1
         Component: WebKit Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dbates at webkit.org
                CC: thorton at apple.com,
                    webkit-bug-importer at group.apple.com,
                    wenson_hsieh at apple.com
        Depends on: 192802

Created attachment 358192

  --> https://bugs.webkit.org/attachment.cgi?id=358192&action=review

Test

Seen with iOS WebKit using a 6th generation iPad in landscape orientation with a hardware keyboard attached. We may not scroll an offscreen <select> into view following r23944.

Steps to reproduce:

1. Open the attached test case.
2. Press the tab key on the hardware keyboard four times.

Then the bottom-most <select> (whose selected item is "Fifth") should be selected the view scrolled to show it. But the view is scrolled to the top of the page.

For some reason we will scroll the <select>s in the middle of the page into view (why?).


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=192802
[Bug 192802] [iOS] Focusing an editable element should scroll to reveal the selection
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