From ec10a2857cd21e1554ea6461c00f8fc79a382735 Mon Sep 17 00:00:00 2001
From: Andrey Panchenko <asfdfdfd@gmail.com>
Date: Sat, 18 Jun 2016 22:41:47 +0300
Subject: [PATCH] Configurable window levels.

---
 PasscodeLock/PasscodeLockPresenter.swift      | 14 ++++++++------
 .../PasscodeLockConfigurationType.swift       | 19 +++++++++++++++++++
 2 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/PasscodeLock/PasscodeLockPresenter.swift b/PasscodeLock/PasscodeLockPresenter.swift
index 7f1f619d..f76dade6 100644
--- a/PasscodeLock/PasscodeLockPresenter.swift
+++ b/PasscodeLock/PasscodeLockPresenter.swift
@@ -16,7 +16,7 @@ public class PasscodeLockPresenter {
         
         let window = UIWindow(frame: UIScreen.mainScreen().bounds)
         
-        window.windowLevel = 0
+        window.windowLevel = self.passcodeConfiguration.passcodeBackWindowLevel
         window.makeKeyAndVisible()
         
         return window
@@ -30,7 +30,7 @@ public class PasscodeLockPresenter {
     public init(mainWindow window: UIWindow?, configuration: PasscodeLockConfigurationType, viewController: PasscodeLockViewController) {
         
         mainWindow = window
-        mainWindow?.windowLevel = 1
+        mainWindow?.windowLevel = configuration.mainWindowLevel
         passcodeConfiguration = configuration
         
         passcodeLockVC = viewController
@@ -64,7 +64,7 @@ public class PasscodeLockPresenter {
         guard !isPasscodePresented else { return }
         
         isPasscodePresented = true
-        passcodeLockWindow.windowLevel = 2
+        passcodeLockWindow.windowLevel = passcodeConfiguration.passcodeFrontWindowLevel
         
         toggleKeyboardVisibility(hide: true)
         
@@ -83,9 +83,11 @@ public class PasscodeLockPresenter {
     public func dismissPasscodeLock(animated animated: Bool = true) {
         
         isPasscodePresented = false
-        mainWindow?.windowLevel = 1
+        mainWindow?.windowLevel = passcodeConfiguration.mainWindowLevel
         mainWindow?.makeKeyAndVisible()
         
+        let passcodeBackWindowLevel = passcodeConfiguration.passcodeBackWindowLevel
+        
         if animated {
             UIView.animateWithDuration(
                 0.5,
@@ -99,14 +101,14 @@ public class PasscodeLockPresenter {
                 },
                 completion: { [weak self] _ in
                     
-                    self?.passcodeLockWindow.windowLevel = 0
+                    self?.passcodeLockWindow.windowLevel = passcodeBackWindowLevel
                     self?.passcodeLockWindow.rootViewController = nil
                     self?.passcodeLockWindow.alpha = 1
                     self?.toggleKeyboardVisibility(hide: false)
                 }
             )
         } else {
-            passcodeLockWindow.windowLevel = 0
+            passcodeLockWindow.windowLevel = passcodeBackWindowLevel
             passcodeLockWindow.rootViewController = nil
             toggleKeyboardVisibility(hide: false)
         }
diff --git a/PasscodeLock/Protocols/PasscodeLockConfigurationType.swift b/PasscodeLock/Protocols/PasscodeLockConfigurationType.swift
index ec158e75..d754748f 100644
--- a/PasscodeLock/Protocols/PasscodeLockConfigurationType.swift
+++ b/PasscodeLock/Protocols/PasscodeLockConfigurationType.swift
@@ -7,6 +7,7 @@
 //
 
 import Foundation
+import CoreGraphics
 
 public protocol PasscodeLockConfigurationType {
     
@@ -16,4 +17,22 @@ public protocol PasscodeLockConfigurationType {
     var shouldRequestTouchIDImmediately: Bool {get}
     var touchIdReason: String? {get set}
     var maximumInccorectPasscodeAttempts: Int {get}
+    var mainWindowLevel: CGFloat { get }
+    var passcodeBackWindowLevel: CGFloat { get }
+    var passcodeFrontWindowLevel: CGFloat { get }
 }
+
+public extension PasscodeLockConfigurationType {
+    
+    var mainWindowLevel: CGFloat {
+        return 1
+    }
+    
+    var passcodeBackWindowLevel: CGFloat {
+        return 0
+    }
+    
+    var passcodeFrontWindowLevel: CGFloat {
+        return 2
+    }
+}
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