refactor(Architecture🏛): MVC to MVVM in menubar feature

Box42/Box/BoxButtonHandler.swift

@@ -0,0 +1,16 @@
+//
+//  BoxButtonHandler.swift
+//  Box42
+//
+//  Created by Chanhee Kim on 8/11/23.
+//
+
+import Cocoa
+
+class BoxButtonHandler {
+    var clickAction: ((NSButton) -> Void)?
+
+    @objc func buttonClicked(_ sender: NSButton) {
+        clickAction?(sender)
+    }
+}

Box42/Box/BoxModel.swift

@@ -2,26 +2,21 @@
 //  BoxViewModel.swift
 //  Box42
 //
-//  Created by Chan on 2023/03/16.
+//  Created by Chan on 2023/08/11.
 //
 
-import WebKit
+import Cocoa
 
-public extension NSScreen {
-    static let screenSize = NSScreen.main?.visibleFrame.size
-    static let screenWidth = screenSize!.width
-    static let screenHeight = screenSize!.height
-    static let halfOfScreen = (x: screenWidth / 2, y: screenHeight / 2)
-    static let customScreenSize = (x: CGFloat(900), y: screenHeight - 132)
-}
-
-public struct BoxViewSize {
-    var halfSize: (width: CGFloat, height: CGFloat) = (NSScreen.halfOfScreen.x, NSScreen.halfOfScreen.y)
-    var size: (width: CGFloat, height: CGFloat) = (NSScreen.customScreenSize.x, NSScreen.customScreenSize.y)
-    var buttonGroupSize: (width: CGFloat, height: CGFloat) = (CGFloat(132), NSScreen.customScreenSize.y)
-    var viewStack = [NSView()]
-}
-
-public class BoxStatus {
-    var isPin: Bool = false
+struct BoxViewSize {
+    var halfSize: (width: CGFloat, height: CGFloat)!
+    var size: (width: CGFloat, height: CGFloat)!
+    var buttonGroupSize: (width: CGFloat, height: CGFloat)!
+    var viewStack: [NSView?]
+
+    init() {
+        halfSize = (NSScreen.halfOfScreen.x, NSScreen.halfOfScreen.y)
+        size = (NSScreen.customScreenSize.x, NSScreen.customScreenSize.y)
+        buttonGroupSize = (CGFloat(132), NSScreen.customScreenSize.y)
+        viewStack = [NSView()]
+    }
 }