[Webkit-unassigned] [Bug 249976] New: WKWebView steals first responder when focused via VoiceOver

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=249976

            Bug ID: 249976
           Summary: WKWebView steals first responder when focused via
                    VoiceOver
           Product: WebKit
           Version: Safari 16
          Hardware: iPhone / iPad
                OS: iOS 16
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: saagar at saagarjha.com
                CC: andresg_22 at apple.com,
                    webkit-bug-importer at group.apple.com

https://bugs.webkit.org/show_bug.cgi?id=234885 adds behavior to WebKit to forcefully, and asynchronously, steal first responder when the web view is focused with VoiceOver. This breaks input in our app, iSH (https://ish.app), for users who rely on accessibility technologies. Our app implements a terminal view that is rendered in a web view, but with us handling text input. In other words, we (our native terminal code) intentionally request first responder, while handing the web view focus. On recent versions of iOS the web view immediately tries to steal first responder status if it receives focus via VoiceOver, which means the keyboard disappears and users can no longer enter text. We cannot have the web view be first responder because it doesn't provide all the APIs that UIKit does to control cursor movement and text editing. A way to disable this new behavior would be nice to have, or better yet, suggestions on how we can achieve the functionality we need with this in place :)

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