source-code

source-code/ALTs/AltStore/Components/NavigationBar.swift

@@ -0,0 +1,103 @@
+//
+//  NavigationBar.swift
+//  AltStore
+//
+//  Created by Riley Testut on 7/15/19.
+//  Copyright © 2019 Riley Testut. All rights reserved.
+//
+
+import UIKit
+
+import Roxas
+
+class NavigationBar: UINavigationBar
+{
+    @IBInspectable var automaticallyAdjustsItemPositions: Bool = true
+    
+    private let backgroundColorView = UIView()
+    
+    override init(frame: CGRect)
+    {
+        super.init(frame: frame)
+        
+        self.initialize()
+    }
+    
+    required init?(coder aDecoder: NSCoder)
+    {
+        super.init(coder: aDecoder)
+        
+        self.initialize()
+    }
+    
+    private func initialize()
+    {
+        if #available(iOS 13, *)
+        {
+            let standardAppearance = UINavigationBarAppearance()
+            standardAppearance.configureWithDefaultBackground()
+            standardAppearance.shadowColor = nil
+            
+            let edgeAppearance = UINavigationBarAppearance()
+            edgeAppearance.configureWithOpaqueBackground()
+            edgeAppearance.backgroundColor = self.barTintColor
+            edgeAppearance.shadowColor = nil
+            
+            if let tintColor = self.barTintColor
+            {
+                let textAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]
+                
+                standardAppearance.backgroundColor = tintColor
+                standardAppearance.titleTextAttributes = textAttributes
+                standardAppearance.largeTitleTextAttributes = textAttributes
+                
+                edgeAppearance.titleTextAttributes = textAttributes
+                edgeAppearance.largeTitleTextAttributes = textAttributes
+            }
+            else
+            {
+                standardAppearance.backgroundColor = nil
+            }
+            
+            self.scrollEdgeAppearance = edgeAppearance
+            self.standardAppearance = standardAppearance
+        }
+        else
+        {
+            self.shadowImage = UIImage()
+            
+            if let tintColor = self.barTintColor
+            {
+                self.backgroundColorView.backgroundColor = tintColor
+                
+                // Top = -50 to cover status bar area above navigation bar on any device.
+                // Bottom = -1 to prevent a flickering gray line from appearing.
+                self.addSubview(self.backgroundColorView, pinningEdgesWith: UIEdgeInsets(top: -50, left: 0, bottom: -1, right: 0))
+            }
+            else
+            {
+                self.barTintColor = .white
+            }
+        }
+    }
+    
+    override func layoutSubviews()
+    {
+        super.layoutSubviews()
+        
+        if self.backgroundColorView.superview != nil
+        {
+            self.insertSubview(self.backgroundColorView, at: 1)
+        }
+        
+        if self.automaticallyAdjustsItemPositions
+        {
+            // We can't easily shift just the back button up, so we shift the entire content view slightly.
+            for contentView in self.subviews
+            {
+                guard NSStringFromClass(type(of: contentView)).contains("ContentView") else { continue }
+                contentView.center.y -= 2
+            }
+        }
+    }
+}