[Pointer Events] Scroll indicators should not show for scrollable content with touch-action: none

[Antoine Quint]

[Pointer Events] Scroll indicators should not show for scrollable content with touch-action: none

[Antoine Quint]

Created attachment 373714 [details]
Patch

[Antoine Quint]

@smfr: is there a better way to determine a given UIGestureRecognizer is the pan gesture recognizer of a UIScrollView created by WebKit but isn't the WKWebView's UIScrollView's? Looking at its delegate's class works fine, but maybe there's a clearer way?

[Simon Fraser (smfr)]

Comment on attachment 373714 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=373714&action=review

> Source/WebKit/UIProcess/ios/WKContentViewInteraction.mm:1402
> +        if ([view isKindOfClass:[UIScrollView class]]) {
> +            if (auto* delegate = ((UIScrollView*)view).delegate)
> +                return [delegate isKindOfClass:[WKScrollingNodeScrollViewDelegate class]];
> +        }

You could just check that the UIScrollView is a WKChildScrollView?

[Antoine Quint]

Committed r247265: <https://trac.webkit.org/changeset/247265>

[Radar WebKit Bug Importer]

<rdar://problem/52844700>