[Webkit-unassigned] [Bug 150248] New: Extend fast-clicking behavior to trigger on elements that have negligible zoom

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=150248

            Bug ID: 150248
           Summary: Extend fast-clicking behavior to trigger on elements
                    that have negligible zoom
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: wenson_hsieh at apple.com

Created attachment 263313
  --> https://bugs.webkit.org/attachment.cgi?id=263313&action=review
Test page for zoom-dependent fast clicking

We will want websites with scalable viewports to also benefit from fast-click behavior when applicable. One idea is to use the double-tap zoom factor as a heuristic to determine whether an element should quickly fire a click when tapped or wait for the double tap gesture to fail. If double tapping on an element will not cause the viewport to zoom very much, we should make single taps on it trigger fast clicking, since double-tapping will offer little value.

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