COVIDSafe code from version 2.2 (#42)

CovidSafe/ChangePostcodeViewController.swift

@@ -0,0 +1,186 @@
+//
+//  ChangePostcodeViewController.swift
+//  CovidSafe
+//
+//  Copyright © 2021 Australian Government. All rights reserved.
+//
+
+import UIKit
+import Lottie
+
+class ChangePostcodeViewController: UIViewController {
+
+    @IBOutlet weak var continueButton: UIButton!
+    @IBOutlet weak var postcodeTextField: UITextField!
+    @IBOutlet weak var postcodeErrorLabel: UILabel!
+    @IBOutlet weak var changePostcodeTextView: UITextView!
+    
+    var nextBarButtonItem: UIBarButtonItem?
+    var initialTextFieldBorderColour: UIColor?
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        self.postcodeTextField.delegate = self
+        initialTextFieldBorderColour = postcodeTextField.borderColor
+        updateContinueButton()
+        
+        let toolBar = UIToolbar()
+        toolBar.sizeToFit()
+        nextBarButtonItem = UIBarButtonItem(title: "Done".localizedString(),
+                                                 style: .plain,
+                                                 target: self,
+                                                 action: #selector(self.doneButtonTapped))
+        let spacer = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
+        toolBar.setItems([spacer, self.nextBarButtonItem!], animated: true)
+        toolBar.isUserInteractionEnabled = true
+        postcodeTextField.inputAccessoryView = toolBar
+        
+        changePostcodeTextView.addLink(URLHelper.getPrivacyPolicyURL(), enclosedIn: "*")
+        changePostcodeTextView.addLink(URLHelper.getCollectionNoticeURL(), enclosedIn: "*")
+        
+    }
+
+    func updateContinueButton() {
+        
+        if (self.postcodeTextField.text != ""  &&
+            self.postcodeErrorLabel.isHidden) {
+            
+            self.continueButton.isEnabled = true
+            self.continueButton.backgroundColor = UIColor.covidSafeButtonDarkerColor
+        } else {
+            self.continueButton.backgroundColor = UIColor(0xDBDDDD)
+            self.continueButton.isEnabled = false
+        }
+    }
+    
+    fileprivate func changePostcodeSuccess() {
+        
+        guard let successVC = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "registrationSuccess") as? RegistrationSuccessViewController else {
+            return
+        }
+        // force view to load
+        _ = successVC.view
+        successVC.titleLabel.text = "postcode_success".localizedString()
+        navigationController?.pushViewController(successVC, animated: true)
+    }
+    
+    fileprivate func toggleLoadingView() {
+        if loadingAnimationView.isHidden {
+            continueButton.isHidden = true
+            loadingAnimationView.isHidden = false
+            startAnimation()
+        } else {
+            stopAnimation()
+            continueButton.isHidden = false
+            loadingAnimationView.isHidden = true
+        }
+    }
+    
+    fileprivate func setChangePostcodeFailed() {
+        postcodeErrorLabel.isHidden = false
+        postcodeErrorLabel.text = "postcode_api_error".localizedString()
+        postcodeTextField.borderColor = UIColor.covidSafeErrorColor
+        if UIAccessibility.isVoiceOverRunning {
+            UIAccessibility.post(notification: .layoutChanged, argument: postcodeErrorLabel)
+        }
+    }
+    
+    @objc
+    func doneButtonTapped() {
+        postcodeTextField.resignFirstResponder()
+    }
+
+    @IBAction func continueButtonTapped(_ sender: Any) {
+        postcodeErrorLabel.isHidden = true
+        postcodeTextField.borderColor = initialTextFieldBorderColour
+        
+        guard let newPostcode = postcodeTextField.text else {
+            return
+        }
+        
+        toggleLoadingView()
+        
+        ChangePostcodeAPI.changePostcode(newPostcode: newPostcode) { (apiError) in
+            defer {
+                self.toggleLoadingView()
+            }
+            
+            if apiError != nil {
+                self.setChangePostcodeFailed()
+                return
+            }
+            
+            // if succeeds
+            self.changePostcodeSuccess()
+        }        
+        
+    }
+
+    @IBAction func backButtonTapped(_ sender: Any) {
+        navigationController?.popViewController(animated: true)
+    }
+    
+    // MARK: Loading animation
+    
+    @IBOutlet weak var loadingAnimationView: UIView!
+    
+    var lottieLoadingView: AnimationView?
+    
+    func startAnimation() {
+        if lottieLoadingView == nil {
+            let loadingAnimation = AnimationView(name: "Spinner_upload")
+            loadingAnimation.loopMode = .loop
+            loadingAnimation.frame = CGRect(origin: CGPoint(x: 0, y: 0), size: loadingAnimationView.frame.size)
+            loadingAnimationView.addSubview(loadingAnimation)
+            lottieLoadingView = loadingAnimation
+        }
+        lottieLoadingView?.play()
+    }
+    
+    func stopAnimation() {
+        lottieLoadingView?.stop()
+    }
+}
+
+extension ChangePostcodeViewController: UITextFieldDelegate {
+    
+    func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
+                
+        if (string == "") {
+            return true
+        }
+
+        if (textField == postcodeTextField) {
+            let isNumeric = CharacterSet.decimalDigits.isSuperset(of: CharacterSet(charactersIn: string))
+            if (!isNumeric) {
+                return false
+            }
+        }
+        if (textField == postcodeTextField && postcodeTextField.text != nil) {
+            guard let text = postcodeTextField.text else {
+                return false
+            }
+            let newLength = text.count + string.count - range.length
+            return newLength <= 4
+        }
+        return true
+    }
+    
+    func textFieldDidEndEditing(_ textField: UITextField) {
+        if textField == postcodeTextField {
+            if textField.text?.count != 4 {
+                postcodeErrorLabel.isHidden = false
+                postcodeErrorLabel.text = "personal_details_post_code_error_prompt".localizedString()
+                postcodeTextField.borderColor = UIColor.covidSafeErrorColor
+                if UIAccessibility.isVoiceOverRunning {
+                    UIAccessibility.post(notification: .layoutChanged, argument: postcodeErrorLabel)
+                }
+            } else {
+                postcodeErrorLabel.isHidden = true
+                postcodeTextField.borderColor = initialTextFieldBorderColour
+            }
+        }
+        updateContinueButton()
+    }
+    
+}