NetNewsWire/Evergreen/MainWindow/Sidebar/Renaming/RenameWindowController.swift

//
//  RenameWindowController.swift
//  Evergreen
//
//  Created by Brent Simmons on 1/28/18.
//  Copyright © 2018 Ranchero Software. All rights reserved.
//

import AppKit

final class RenameWindowController: NSWindowController {

	@IBOutlet var renamePrompt: NSTextField!
	@IBOutlet var newTitleTextField: NSTextField!
	@IBOutlet var renameButton: NSButton!
	
	private var originalTitle: String!

	convenience init(originalTitle: String) {

		self.init(windowNibName: NSNib.Name(rawValue: "RenameSheet"))
		self.originalTitle = originalTitle
	}

	override func windowDidLoad() {

		newTitleTextField.stringValue = originalTitle
		updateUI()
	}
}

extension RenameWindowController: NSTextFieldDelegate {

	override func controlTextDidChange(_ obj: Notification) {

		updateUI()
	}
}

private extension RenameWindowController {

	func updateUI() {

		let newTitle = newTitleTextField.stringValue
		renameButton.isEnabled = !newTitle.isEmpty && newTitle != originalTitle
	}
}