Create CellOutlineVItem.swift

Author: flocked

Sources/AdvancedCollectionTableView/DiffableDataSource/NSOutlineView/CellOutlineVItem.swift

@@ -0,0 +1,80 @@
+//
+//  CellOutlineVItem.swift
+//  
+//
+//  Created by Florian Zand on 20.01.25.
+//
+
+/*
+import AppKit
+
+/// A outline view item that creates it's cell view.
+public protocol CellOutlineItem: Hashable {
+    /// Returns the cell view for the item.
+    func cellView(_ outlineView: NSOutlineView, column: NSTableColumn, row: Int) -> NSView
+    
+    /**
+     A Boolean value indicating whether the item can be expanded / collapsed by the user.
+     
+     The default value is `true`.
+     */
+    var isExpandable: Bool { get }
+    
+    /**
+     A Boolean value indicating whether the item can be selected.
+     
+     The default value is `true`.
+     */
+    var isSelectable: Bool { get }
+    
+    /**
+     A Boolean value indicating whether the item can be deleted by the user pressing `Backspace`.
+     
+     The default value is `false`.
+     */
+    var isDeletable: Bool { get }
+    
+    /**
+     A Boolean value indicating whether the item can be reorded.
+     
+     The default value is `false`.
+     */
+    var isReordable: Bool { get }
+    
+    /**
+     A Boolean value indicating whether the user can insert items as children.
+     
+     The default value is `true`.
+     */
+    var canInsertChildren: Bool { get }
+    
+    /**
+     A Boolean value indicating whether the item is a group item.
+     
+     The default value is `false`.
+     */
+    var isGroupItem: Bool { get }
+}
+
+extension CellOutlineItem {
+    public var isExpandable: Bool { true }
+    public var isSelectable: Bool { true }
+    public var isDeletable: Bool { false }
+    public var isReordable: Bool { false }
+    public var canInsertChildren: Bool { true }
+    public var isGroupItem: Bool { false }
+}
+
+/// A outline view item that creates it's cell view.
+public protocol RegisteredCellOutlineItem: CellOutlineItem {
+    associatedtype Cell: NSTableCellView
+    /// The cell registration that creates the cell view for the item.
+    static var cellRegistration:  NSTableView.CellRegistration<Cell, Self> { get }
+}
+
+extension RegisteredCellOutlineItem {
+    public func cellView(_ outlineView: NSOutlineView, column: NSTableColumn, row: Int) -> NSView {
+        outlineView.makeCellView(using: Self.cellRegistration, forColumn: column, row: row, item: self) ?? NSTableCellView()
+    }
+}
+*/