dagronf

/// A simple layer class to expose an animation progress for a CAAnimation.
public class ArbitraryAnimationLayer: CALayer {

  static let KeyPath: String = "progress"

  override init() {
    super.init()
  }

  var progressCallback: ((CGFloat) -> Void)?

dagronf

/// Provide the equivalent of @synchronised on objc
private func synchronized<T>(_ lock: AnyObject, _ body: () throws -> T) rethrows -> T {
   objc_sync_enter(lock)
   defer { objc_sync_exit(lock) }
   return try body()
}

/// Simple lockable class
class Lockable {
   private var lockable: AnyObject

dagronf

import Cocoa

class AutoselectOnFocusTextField: NSTextField {
   override func becomeFirstResponder() -> Bool {
      guard super.becomeFirstResponder() else {
         return false
      }
      if let editor = self.currentEditor() {
         editor.perform(#selector(selectAll(_:)), with: self, afterDelay: 0)
      }

dagronf

// Applescript: tell application "System Preferences" to get anchors of current pane
// Result: 
// { anchor "Privacy_Reminders" of pane id "com.apple.preference.security" of application "System Preferences", 
//   anchor "Privacy_SystemServices" of pane id "com.apple.preference.security" of application "System Preferences",
//   anchor "Privacy_Calendars" of pane id "com.apple.preference.security" of application "System Preferences", 
//   anchor "Firewall" of pane id "com.apple.preference.security" of application "System Preferences", 
//   anchor "Privacy_Assistive" of pane id "com.apple.preference.security" of application "System Preferences", 
//   anchor "Privacy_LinkedIn" of pane id "com.apple.preference.security" of application "System Preferences", 
//   anchor "Privacy_Accessibility" of pane id "com.apple.preference.security" of application "System Preferences",

dagronf

   let menuController = UIMenuController.shared
   let item1 = UIMenuItem(title: "Item 1", action: #selector(performItem1))
   let item2 = UIMenuItem(title: "Item 2", action: #selector(performItem2))
   menuController.menuItems = [item1, item2]
   menuController.setMenuVisible(true, animated: true)

dagronf

import UIKit

extension UIColor {
   private struct ColorComponents {
      var r: CGFloat = 0.0
      var g: CGFloat = 0.0
      var b: CGFloat = 0.0
      var a: CGFloat = 0.0
   }

dagronf

/// From https://www.rightpoint.com/rplabs/xctassert-optional-unwrapping

// Usage :-
//
// class TestCaseUnwrap: XCTestCase {
//    func testUnwrap() throws {
//       let string: String? = nil
//       let newString = try AssertNotNilAndUnwrap(string)
//       XCTAssert(newString.lengthOfBytes(using: .utf8) > 0)
//    }

dagronf

public extension Sequence {
   /// Return unique elements in an array, given a predicate
   /// - Parameter includeElement: block determining whether the elements are equivalent
   func unique(_ predicate: (_ lhs: Element, _ rhs: Element) -> Bool) -> [Element] {
      var results = [Element]()
      forEach { (element) in
         if results.filter( { predicate(element, $0) }).count == 0 {
            results.append(element)
         }
      }

dagronf

/// Perform an immediate `transform` of a given `subject`. The `transform`
/// function may just mutate the given `subject`, or replace it entirely.
///
/// ```
/// let oneAndTwo = with([1]) {
///     $0.append(2)
/// }
/// ```
///
/// - Parameters:

dagronf

extension FileManager {

   /// Returns a unique URL for the specified filename and directory. Not thread safe
   /// - Parameter filename: the `lastPathComponent` of a URL (for example, `IMG-2002.jpg`)
   /// - Parameter directory: the directory in which to check
   /// - Returns: a unique URL
   static func UniqueFileURL(for filename: String, in directory: URL) -> URL {
      // Filename is lastPathComponent
      let fm = FileManager.default