misc: swift difference

Sources/ClashX Dashboard/Views/NSTableViewExtension.swift

@@ -0,0 +1,72 @@
+//
+//  NSTableViewExtension.swift
+//  
+//
+
+//
+
+import Cocoa
+
+extension NSTableView {
+	func makeCellView(with identifier: String, owner: Any?) -> NSTableCellView? {
+		// https://stackoverflow.com/a/27624927
+		
+		var cellView: NSTableCellView?
+		if let spareView = makeView(withIdentifier: .init(identifier),
+			owner: owner) as? NSTableCellView {
+
+			// We can use an old cell - no need to do anything.
+			cellView = spareView
+
+		} else {
+
+			// Create a text field for the cell
+			let textField = NSTextField()
+			textField.backgroundColor = NSColor.clear
+			textField.translatesAutoresizingMaskIntoConstraints = false
+			textField.isBordered = false
+			textField.font = .systemFont(ofSize: 13)
+			textField.lineBreakMode = .byTruncatingTail
+
+			// Create a cell
+			let newCell = NSTableCellView()
+			newCell.identifier = .init(identifier)
+			newCell.addSubview(textField)
+			newCell.textField = textField
+
+			// Constrain the text field within the cell
+			newCell.addConstraints(
+				NSLayoutConstraint.constraints(withVisualFormat: "H:|[textField]|",
+					options: [],
+					metrics: nil,
+					views: ["textField" : textField]))
+
+			newCell.addConstraint(.init(item: textField, attribute: .centerY, relatedBy: .equal, toItem: newCell, attribute: .centerY, multiplier: 1, constant: 0))
+			
+
+			textField.bind(NSBindingName.value,
+						   to: newCell,
+				withKeyPath: "objectValue",
+				options: nil)
+
+			cellView = newCell
+		}
+		
+		return cellView
+	}
+	
+	
+	func reloadData<C>(_ changes: CollectionDifference<C>, indexs: IndexSet) {
+		beginUpdates()
+		for change in changes {
+			switch change {
+			case .insert(let offset, _, _):
+				insertRows(at: IndexSet(integer: offset))
+			case .remove(let offset, _, _):
+				removeRows(at: IndexSet(integer: offset))
+			}
+		}
+		reloadData(forRowIndexes: indexs, columnIndexes: IndexSet(tableColumns.indices))
+		endUpdates()
+	}
+}