Render split view spaces with ordered app halves

Ariver

2026-06-12 a4af5d51e8fbb8a0e53f98aa9f9e238536aaba24

 C1.source/Sources/Aligner/QuickSwitchSessionController.swift

@@ -19,7 +19,7 @@
    private let windowCloseService: any WindowCloseServiceProtocol
    private let systemCriticalWindowDetector: any SystemCriticalWindowDetecting
    private let disableScreenshotRefresh: Bool
    private let waterfallViewMode: QuickSwitchWaterfallViewMode
    private var waterfallViewMode: QuickSwitchWaterfallViewMode
    private var closeConfirmationRequired: Bool
    private let onCloseConfirmationDisabled: (() -> Void)?
    private let debugOverlayWidth: CGFloat?
@@ -86,6 +86,7 @@
    private var lifecycleResidualOverlayWindows = 0
    private var lifecycleResidualVisibleOverlayWindows = 0
    var onSnapshotUpdated: (() -> Void)?
    var onOpenSettings: (() -> Void)?

    private struct PendingCloseVerification {
        let request: QuickSwitchCloseRequest
@@ -212,6 +213,9 @@
        view.onBackgroundClick = { [weak self] in
            self?.handleBackgroundClick() ?? false
        }
        view.onOpenSettings = { [weak self] in
            self?.onOpenSettings?()
        }
        view.setSuppressEventInput(!debugMouseSequence.isEmpty || !debugKeySequence.isEmpty)
        view.onRequestClose = { [weak self] request in
            self?.requestClose(request)
@@ -277,6 +281,23 @@
    func retriggerFromShortcut() {
        DevelopmentDiagnostics.log("quickSwitch.session.retriggerFromShortcut")
        show()
    }

    func setWaterfallViewMode(_ mode: QuickSwitchWaterfallViewMode) {
        guard waterfallViewMode != mode else { return }

        waterfallViewMode = mode
        DevelopmentDiagnostics.log("quickSwitch.session.waterfallViewModeChanged", [
            "mode": mode.rawValue,
            "visible": isVisible,
            "hasViewModel": currentViewModel != nil
        ])

        view.setWaterfallViewMode(mode)
        if isVisible, let currentViewModel {
            view.applyProjected(viewModel: currentViewModel)
        }
        onSnapshotUpdated?()
    }

    func reportDictionary() -> [String: Any] {
@@ -823,12 +844,12 @@
                "result": Self.closeResultString(result)
            ])
            if result == .requested {
                suppressCloseTarget(request)
                DevelopmentDiagnostics.log("quickSwitch.close.request.refreshAfterClose", [
                    "targetKind": request.kindDescription,
                    "appGroupIndex": request.appGroupIndex,
                    "appName": request.appName,
                    "windowID": request.windowID
                    "windowID": request.windowID,
                    "optimisticRemove": false
                ])
                pendingCloseVerification = PendingCloseVerification(
                    request: request,
@@ -1457,6 +1478,7 @@
    let fixtureCandidateFiltering: Bool
    let fixtureActivation: Bool
    let fixtureSpaceFilter: Bool
    let fixtureSplitView: Bool
    let debugHoveredAppGroupIndex: Int?
    let debugOverlayWidth: CGFloat?
    let debugKeySequence: [String]
@@ -1485,6 +1507,7 @@
            fixtureCandidateFiltering: arguments.contains("--round01-fixture-candidate-filtering"),
            fixtureActivation: arguments.contains("--round01-fixture-window-activation"),
            fixtureSpaceFilter: arguments.contains("--round01-fixture-space-filter"),
            fixtureSplitView: arguments.contains("--round01-fixture-split-view"),
            debugHoveredAppGroupIndex: intValue(for: "--round01-debug-hover-app-index", in: arguments),
            debugOverlayWidth: cgFloatValue(for: "--round01-debug-overlay-width", in: arguments),
            debugKeySequence: stringListValue(for: "--round01-debug-key-sequence", in: arguments),