[Webkit-unassigned] [Bug 205158] Double tap to zoom out doesn't work after upgrading to iOS 13

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=205158

--- Comment #17 from Antoine Quint <graouts at webkit.org> ---
We disable double-tap to zoom when double-tapping and already zoomed in because we enter this branch:

    auto initialScale = [self _initialScaleFactor];
    if (std::min(targetScale, initialScale) / std::max(targetScale, initialScale) > fasterTapSignificantZoomThreshold) {
        RELEASE_LOG(ViewGestures, "Potential tap would not cause a significant zoom. Trigger click. (%p)", self);
        [self _setDoubleTapGesturesEnabled:NO];
        return;
    }

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