[Webkit-unassigned] [Bug 173833] New: [iOS] Adjust layer hierarchy to handle touch events

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Jun 26 08:18:33 PDT 2017


            Bug ID: 173833
           Summary: [iOS] Adjust layer hierarchy to handle touch events
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Frames
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fred.wang at free.fr
            Blocks: 149264

22:56:07 - fredw : My final question was about UIScrollView
22:56:29 - fredw : for overflow:auto you use LayerTypeScrollingLayer which creates UIScrollView
22:57:01 - fredw : but it seems that for frames we'll use LayerTypeTiledBackingTileLayer which currently creates WKCompositingView (which is a UIView)
22:57:25 - fredw : what kind of adjustment should be done here?
22:57:37 - smfr : LayerTypeTiledBackingTileLayer will live inside the scrolling layer
22:57:52 - smfr : so scrolling iframes will need some special treatment for iOS
22:58:13 - smfr : on iOS WkWebView has a UIScrollView inside it already, so the root UIScrollVIew is taken care of
22:58:43 - smfr : for subframes, we'll probably want a LayerTypeScrollingLayer which contains a LayerTypeTiledBackingTileLayer

Referenced Bugs:

[Bug 149264] IFrame scrolling=yes is ignored in iOS Safari
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