Prepare 7.8.9 tag navigation drop test package

Ariver

2026-06-02 406c5898d103427193e589b4bbe615d0c739b2c5

 Apptag/AppDragCoordinator.swift

@@ -25,6 +25,7 @@
    private var dragWindow: NSWindow?
    private var dragImageSize: NSSize = .zero
    private var activePayload = ""
    private weak var hoveredTarget: AppDropTargetReceivingView?

    private init() {}

@@ -129,15 +130,20 @@
            CATransaction.setDisableActions(true)
            dragLayer.position = contentPoint
            CATransaction.commit()
            updateHoverTarget(at: screenPoint)
            return
        }

        guard let dragWindow else { return }
        guard let dragWindow else {
            updateHoverTarget(at: screenPoint)
            return
        }
        let origin = NSPoint(
            x: screenPoint.x - dragImageSize.width / 2,
            y: screenPoint.y - dragImageSize.height / 2
        )
        dragWindow.setFrameOrigin(origin)
        updateHoverTarget(at: screenPoint)
    }

    func finishDrag(at screenPoint: NSPoint, copy: Bool) {
@@ -147,18 +153,7 @@
        let source = parts.dropFirst().first ?? ""
        pruneDeadTargets()

        let hitTarget = targets.values
            .compactMap { target -> (AppDropTargetReceivingView, CGFloat)? in
                guard let view = target.view,
                      let frame = view.screenFrame(),
                      frame.contains(screenPoint)
                else { return nil }
                return (view, frame.width * frame.height)
            }
            .sorted { $0.1 < $1.1 }
            .first?.0

        if let hitTarget {
        if let hitTarget = dropTarget(at: screenPoint) {
            hitTarget.performDrop(path: path, source: source, copy: copy)
            return
        }
@@ -191,6 +186,8 @@
    }

    private func endDragVisuals() {
        hoveredTarget?.appDragHoverChanged(active: false)
        hoveredTarget = nil
        dragLayer?.removeFromSuperlayer()
        dragLayer = nil
        dragLayerHostView = nil
@@ -207,6 +204,29 @@
    private func pruneDeadTargets() {
        targets = targets.filter { $0.value.view != nil }
        emptyTargets = emptyTargets.filter { $0.value.view != nil }
    }

    private func updateHoverTarget(at screenPoint: NSPoint) {
        guard hasActiveDrag else { return }
        pruneDeadTargets()
        let nextTarget = dropTarget(at: screenPoint)
        guard nextTarget !== hoveredTarget else { return }
        hoveredTarget?.appDragHoverChanged(active: false)
        nextTarget?.appDragHoverChanged(active: true)
        hoveredTarget = nextTarget
    }

    private func dropTarget(at screenPoint: NSPoint) -> AppDropTargetReceivingView? {
        targets.values
            .compactMap { target -> (AppDropTargetReceivingView, CGFloat)? in
                guard let view = target.view,
                      let frame = view.screenFrame(),
                      frame.contains(screenPoint)
                else { return nil }
                return (view, frame.width * frame.height)
            }
            .sorted { $0.1 < $1.1 }
            .first?.0
    }

    private static func cgImage(from image: NSImage) -> CGImage? {
@@ -261,6 +281,7 @@

protocol AppDropTargetReceivingView: AnyObject {
    func screenFrame() -> NSRect?
    func appDragHoverChanged(active: Bool)
    func performDrop(path: String, source: String, copy: Bool)
}

@@ -277,6 +298,10 @@
    }
}

extension AppDropTargetReceivingView {
    func appDragHoverChanged(active: Bool) {}
}

extension AppEmptyDropReceivingView where Self: NSView {
    func screenFrame() -> NSRect? {
        guard let window else { return nil }