Fix Finder split view tab activation regression

Ariver

2026-06-13 a2293c5609ee7b5b7bbfce3b4c0dc7ae365e31ff

 C1.source/Sources/Aligner/QuickSwitchRootView.swift

@@ -1347,6 +1347,15 @@
            if let card = waterfallCard(appGroupIndex: appGroupIndex, windowIndex: windowIndex) {
                clickWindowCard(card)
            }
        case "click-card-id" where parts.count == 2:
            guard let windowID = UInt32(parts[1]) else {
                recordMouseCommand("invalid:\(command)")
                return
            }
            recordMouseCommand("click-card-id:\(windowID)")
            if let card = waterfallCard(windowID: windowID) {
                clickWindowCard(card)
            }
        case "hover-card-close" where parts.count == 3:
            guard let appGroupIndex = Int(parts[1]), let windowIndex = Int(parts[2]) else {
                recordMouseCommand("invalid:\(command)")
@@ -3085,15 +3094,25 @@
            .first(where: { $0.item.windowIndex == windowIndex })
    }

    private func waterfallCard(windowID: UInt32) -> WaterfallCardLayers? {
        waterfallColumns
            .lazy
            .flatMap(\.cards)
            .first(where: { $0.item.window.id == windowID })
    }

    private func layoutSpaceLaneSegmentContents(_ segment: SpaceLaneSegmentLayers) {
        let bounds = segment.containerLayer.bounds
        let splitAppNames = splitViewAppNames(for: segment.space)
        let isSplitView = splitAppNames.count >= 2
        segment.labelLayer.frame = CGRect(x: 10, y: bounds.height - 29, width: max(1, bounds.width - 48), height: 20)
        segment.countLayer.frame = CGRect(x: bounds.width - 34, y: bounds.height - 29, width: 24, height: 20)
        segment.countLayer.string = isSplitView ? "" : "\(segment.space.windowCount)"
        segment.countLayer.isHidden = isSplitView
        if segment.space.type == .fullscreen {
            let markerFrame = fullscreenMarkerFrame(in: bounds)
            let splitAppNames = splitViewAppNames(for: segment.space)
            segment.appLayer.isHidden = splitAppNames.count >= 2
            if splitAppNames.count >= 2 {
            segment.appLayer.isHidden = isSplitView
            if isSplitView {
                let labelY = markerFrame.midY - 8.5
                let halfWidth = markerFrame.width / 2
                for (index, splitAppLayer) in segment.splitAppLayers.enumerated() {
@@ -3128,7 +3147,7 @@
            layoutFullscreenMarkerLayer(
                fullscreenMarkerLayer,
                in: bounds,
                isSplitView: splitViewAppNames(for: segment.space).count >= 2
                isSplitView: isSplitView
            )
        }

@@ -4740,17 +4759,11 @@

        let bounds = shapeLayer.bounds
        if isSplitView {
            let insetBounds = bounds.insetBy(dx: 0.6, dy: 0.6)
            let radius = min(7, max(5, insetBounds.height * 0.22))
            let path = CGMutablePath()
            path.addRoundedRect(
                in: insetBounds,
                cornerWidth: radius,
                cornerHeight: radius
            )
            path.move(to: CGPoint(x: bounds.midX, y: insetBounds.minY + 1.5))
            path.addLine(to: CGPoint(x: bounds.midX, y: insetBounds.maxY - 1.5))
            path.move(to: CGPoint(x: bounds.midX, y: bounds.minY))
            path.addLine(to: CGPoint(x: bounds.midX, y: bounds.maxY))
            shapeLayer.path = path
            shapeLayer.lineCap = .butt
            return
        }

@@ -4774,6 +4787,7 @@
        path.addLine(to: CGPoint(x: 0, y: bounds.maxY - cornerLength))

        shapeLayer.path = path
        shapeLayer.lineCap = .round
    }

    private func fullscreenMarkerFrame(in segmentBounds: CGRect) -> CGRect {
@@ -5176,6 +5190,10 @@
                        markerLayer: segment.fullscreenMarkerLayer,
                        splitAppNames: splitAppNames
                    ),
                    "fullscreenMarkerPathStyle": fullscreenMarkerPathStyle(
                        markerLayer: segment.fullscreenMarkerLayer,
                        splitAppNames: splitAppNames
                    ),
                    "fullscreenMarkerFrame": fullscreenMarkerFrame.map { dictionary(from: $0) } ?? NSNull(),
                    "fullscreenMarkerCenterRatio": fullscreenMarkerCenterRatio ?? NSNull(),
                    "splitViewAppNames": splitAppNames,
@@ -5187,6 +5205,8 @@
                    "windowBlockColors": segment.windowBlocks.map { colorDictionary(from: $0.backgroundColor) },
                    "windowBlockFrames": segment.windowBlocks.map { dictionary(from: $0.frame) },
                    "labelColor": colorDictionary(from: segment.labelLayer.foregroundColor),
                    "countText": string(from: segment.countLayer.string),
                    "countVisible": !segment.countLayer.isHidden && segment.countLayer.opacity > 0,
                    "countColor": colorDictionary(from: segment.countLayer.foregroundColor),
                    "appColor": colorDictionary(from: segment.appLayer.foregroundColor),
                    "fullscreenMarkerStrokeColor": colorDictionary(
@@ -5229,6 +5249,11 @@
    private func fullscreenMarkerKind(markerLayer: CALayer?, splitAppNames: [String]) -> String {
        guard markerLayer != nil else { return "none" }
        return splitAppNames.count >= 2 ? "splitViewPair" : "cornerBracket"
    }

    private func fullscreenMarkerPathStyle(markerLayer: CALayer?, splitAppNames: [String]) -> String {
        guard markerLayer != nil else { return "none" }
        return splitAppNames.count >= 2 ? "centerDividerOnly" : "cornerBracket"
    }

    private func visualStates(for space: QuickSwitchSpaceViewModel) -> [String] {
@@ -5282,6 +5307,16 @@
        ]
    }

    private func string(from textLayerValue: Any?) -> String {
        if let string = textLayerValue as? String {
            return string
        }
        if let attributedString = textLayerValue as? NSAttributedString {
            return attributedString.string
        }
        return ""
    }

    private func colorDictionary(from color: CGColor?) -> [String: Double] {
        guard let color,
              let nsColor = NSColor(cgColor: color)?.usingColorSpace(.deviceRGB)