added test sample

Signed-off-by: Matt Bruce <matt.bruce@verizon.com>

VDSSample.xcodeproj/project.pbxproj

@@ -40,6 +40,7 @@
 		EA3C3BB528996775000CA526 /* StoryboardInitable.swift in Sources */ = {isa = PBXBuildFile; fileRef = EA3C3BB128996775000CA526 /* StoryboardInitable.swift */; };
 		EA3C3BB628996775000CA526 /* MenuViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = EA3C3BB228996775000CA526 /* MenuViewController.swift */; };
 		EA3C3BB728996775000CA526 /* ToggleViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = EA3C3BB328996775000CA526 /* ToggleViewController.swift */; };
+		EAB1D2C528A6B11D00DAE764 /* TestViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = EAB1D2C428A6B11D00DAE764 /* TestViewController.swift */; };
 		EAF7F07C2899698800B287F5 /* Components.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = EAF7F07A2899698800B287F5 /* Components.storyboard */; };
 		EAF7F07D2899698800B287F5 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = EAF7F07B2899698800B287F5 /* Assets.xcassets */; };
 		EAF7F09C2899B92400B287F5 /* CheckboxViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = EAF7F09B2899B92400B287F5 /* CheckboxViewController.swift */; };
@@ -95,6 +96,7 @@
 		EA3C3BBA289968A0000CA526 /* VDSTypographyTokens.xcframework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcframework; name = VDSTypographyTokens.xcframework; path = ../SharedFrameworks/VDSTypographyTokens.xcframework; sourceTree = "<group>"; };
 		EA3C3BBB289968A0000CA526 /* VDSFormControlsTokens.xcframework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcframework; name = VDSFormControlsTokens.xcframework; path = ../SharedFrameworks/VDSFormControlsTokens.xcframework; sourceTree = "<group>"; };
 		EA3C3BC3289968B1000CA526 /* VDS.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; path = VDS.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		EAB1D2C428A6B11D00DAE764 /* TestViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TestViewController.swift; sourceTree = "<group>"; };
 		EAF7F07A2899698800B287F5 /* Components.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = Components.storyboard; sourceTree = "<group>"; };
 		EAF7F07B2899698800B287F5 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		EAF7F09B2899B92400B287F5 /* CheckboxViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CheckboxViewController.swift; sourceTree = "<group>"; };
@@ -207,6 +209,7 @@
 				EA3C3BB228996775000CA526 /* MenuViewController.swift */,
 				EAF7F11928A14A0E00B287F5 /* RadioButtonViewController.swift */,
 				EA3C3BB328996775000CA526 /* ToggleViewController.swift */,
+				EAB1D2C428A6B11D00DAE764 /* TestViewController.swift */,
 			);
 			path = ViewControllers;
 			sourceTree = "<group>";
@@ -358,6 +361,7 @@
 				EAF7F11A28A14A0E00B287F5 /* RadioButtonViewController.swift in Sources */,
 				EA3C3B9F289966EF000CA526 /* SceneDelegate.swift in Sources */,
 				EA3C3BB428996775000CA526 /* PickerBase.swift in Sources */,
+				EAB1D2C528A6B11D00DAE764 /* TestViewController.swift in Sources */,
 				EAF7F09C2899B92400B287F5 /* CheckboxViewController.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

VDSSample/ViewControllers/TestViewController.swift

@@ -0,0 +1,175 @@
+//
+//  TestViewController.swift
+//  VDSSample
+//
+//  Created by Matt Bruce on 8/12/22.
+//
+
+import Foundation
+import UIKit
+import Combine
+
+class User: ObservableObject {
+   var firstName: String
+   var lastName: String
+
+  init(firstName: String, lastName: String) {
+    self.firstName = firstName
+    self.lastName = lastName
+  }
+}
+
+class TextFieldCell: UIView {
+    let firstNameTextField = TextField()
+    let lastNameTextField = TextField()
+    var subject: CurrentValueSubject<User, Never>
+    private var subscriptions = Set<AnyCancellable>()
+    var model: User
+    
+    private func send() {
+        subject.send(model)
+    }
+    
+    init(subject: CurrentValueSubject<User, Never>) {
+        self.model = subject.value
+        self.subject = subject
+        super.init(frame: .zero)
+    
+        translatesAutoresizingMaskIntoConstraints = false
+        firstNameTextField.translatesAutoresizingMaskIntoConstraints = false
+        lastNameTextField.translatesAutoresizingMaskIntoConstraints = false
+        
+        addSubview(firstNameTextField)
+        addSubview(lastNameTextField)
+        print("\(model.firstName) \(model.lastName)")
+
+        firstNameTextField.leadingAnchor.constraint(equalTo: leadingAnchor).isActive = true
+        firstNameTextField.trailingAnchor.constraint(equalTo: trailingAnchor).isActive = true
+        firstNameTextField.topAnchor.constraint(equalTo: topAnchor).isActive = true
+        firstNameTextField.heightAnchor.constraint(equalToConstant: 50).isActive = true
+
+        lastNameTextField.topAnchor.constraint(equalTo: firstNameTextField.bottomAnchor, constant: 20).isActive = true
+        lastNameTextField.leadingAnchor.constraint(equalTo: leadingAnchor).isActive = true
+        lastNameTextField.trailingAnchor.constraint(equalTo: trailingAnchor).isActive = true
+        lastNameTextField.heightAnchor.constraint(equalToConstant: 50).isActive = true
+        lastNameTextField.bottomAnchor.constraint(equalTo: bottomAnchor).isActive = true
+
+        //add the logic
+        let firstNameSubject = CurrentValueSubject<String, Never>(model.firstName)
+        firstNameTextField.createBinding(with: firstNameSubject, storeIn: &subscriptions)
+        firstNameSubject.assign(to: \.model.firstName, on: self).store(in: &subscriptions)
+        firstNameSubject.sink {[weak self] value in
+            self?.send()
+        }.store(in: &subscriptions)
+
+        let lastNameSubject = CurrentValueSubject<String, Never>(model.lastName)
+        lastNameTextField.createBinding(with: lastNameSubject, storeIn: &subscriptions)
+        lastNameSubject.assign(to: \.model.lastName, on: self).store(in: &subscriptions)
+        lastNameSubject.sink {[weak self] value in
+            guard let self = self else { return }
+            self.send()
+        }.store(in: &subscriptions)
+
+    }
+
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+}
+
+
+@objcMembers class TestViewController: UIViewController, Initable {
+    var user = User(firstName: "Joe", lastName: "User")
+    var nameTextField: TextFieldCell!
+    var button = UIButton()
+    private var cancellables = Set<AnyCancellable>()
+
+    required init() {
+        super.init(nibName: nil, bundle: nil)
+    }
+    
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        view.backgroundColor = .white
+        
+        let subject = CurrentValueSubject<User, Never>(user)
+        subject.assign(to: \.user, on: self).store(in: &cancellables)
+        nameTextField = TextFieldCell(subject: subject)
+        
+        button.translatesAutoresizingMaskIntoConstraints = false
+        
+        view.addSubview(nameTextField)
+        view.addSubview(button)
+        nameTextField.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor, constant: 20).isActive = true
+        nameTextField.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor, constant: -20).isActive = true
+        nameTextField.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor, constant: 20).isActive = true
+        button.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor, constant: 20).isActive = true
+        button.topAnchor.constraint(equalTo: nameTextField.bottomAnchor, constant: 20).isActive = true
+        button.heightAnchor.constraint(equalToConstant: 50).isActive = true
+        button.widthAnchor.constraint(equalToConstant: 100).isActive = true
+        button.backgroundColor = .blue
+        button.setTitle("Print", for: .normal)
+        
+        button.addAction(UIAction(title: "", handler: { [weak self] action in
+            if let user = self?.user {
+                print("\(user.firstName) \(user.lastName)")
+            }
+        }), for: .touchUpInside)
+    }
+
+
+}
+
+
+extension UITextField {
+    
+    func textPublisher() -> AnyPublisher<String, Never> {
+        NotificationCenter.default
+            .publisher(for: UITextField.textDidChangeNotification, object: self)
+            .compactMap({ ($0.object as? UITextField)?.text })
+            .eraseToAnyPublisher()
+    }
+    
+    func createBinding(with subject: CurrentValueSubject<String, Never>,
+                       storeIn subscriptions: inout Set<AnyCancellable>) {
+        
+        subject.sink { [weak self] (value) in
+            if value != self?.text {
+                self?.text = value
+            }
+        }.store(in: &subscriptions)
+        
+        self.textPublisher().sink { (value) in
+            if value != subject.value {
+                subject.send(value)
+            }
+        }.store(in: &subscriptions)
+    }
+}
+
+class TextField: UITextField {
+    var textPadding = UIEdgeInsets(
+        top: 10,
+        left: 20,
+        bottom: 10,
+        right: 20
+    )
+
+    override func textRect(forBounds bounds: CGRect) -> CGRect {
+        layer.borderColor = UIColor.black.cgColor
+        layer.borderWidth = 1
+        let rect = super.textRect(forBounds: bounds)
+        return rect.inset(by: textPadding)
+    }
+
+    override func editingRect(forBounds bounds: CGRect) -> CGRect {
+        layer.borderColor = UIColor.black.cgColor
+        layer.borderWidth = 1
+        let rect = super.editingRect(forBounds: bounds)
+        return rect.inset(by: textPadding)
+    }
+}