Bug 182590 – Evernote device management web view sometimes displays at the wrong scale

• Component: New Bugs
• Status: RESOLVED FIXED

[Tim Horton]

Evernote device management web view sometimes displays at the wrong scale

[Tim Horton]

Created attachment 333342 [details]
Patch

[Tim Horton]

<rdar://problem/36633687>

[Simon Fraser (smfr)]

Comment on attachment 333342 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=333342&action=review

> Source/WebKit/ChangeLog:25
> +        Evernote implements the WKWebView's scroll view's delegate method
> +        viewForZoomingInScrollView: and returns null. This results in
> +        WKScrollView's zoomScale always returning 1, no matter what the
> +        WKContentView's actual scale is. This will result in us never updating
> +        the WKContentView's scale to 1. When loading a page that has a few
> +        scale changes during load but ends up at scale 1, we get stuck at whatever
> +        intermediate scale immediately preceded settling on 1.
> +
> +        Fix this by not forwarding viewForZoomingInScrollView: to the external
> +        WKScrollView delegate; we are in charge of the contents of the scroll
> +        view (including which view scrollView's zoomScale should track), and
> +        overriding viewForZoomingInScrollView: is only ever going to lead to
> +        a broken WebKit.

Put all this above the function names. Also null -> nil says mitz.

> Tools/TestWebKitAPI/Tests/ios/WKScrollViewDelegate.mm:2
> + * Copyright (C) 2016 Apple Inc. All rights reserved.

2016-2018 i guess.

[Tim Horton]

https://trac.webkit.org/changeset/228253/webkit