Add call transfer module

Riot/Modules/CallTransfer/CallTransferMainViewController.swift

@@ -0,0 +1,216 @@
+// File created from simpleScreenTemplate
+// $ createSimpleScreen.sh CallTransfer2 CallTransferMain
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import UIKit
+
+@objc protocol CallTransferMainViewControllerDelegate: class {
+    func callTransferMainViewControllerDidComplete(_ viewController: CallTransferMainViewController,
+                                                   consult: Bool,
+                                                   contact: MXKContact?,
+                                                   phoneNumber: String?)
+    func callTransferMainViewControllerDidCancel(_ viewController: CallTransferMainViewController)
+}
+
+@objcMembers
+final class CallTransferMainViewController: UIViewController {
+    
+    // MARK: - Properties
+    
+    // MARK: Outlets
+    
+    @IBOutlet private weak var segmentedControl: UISegmentedControl! {
+        didSet {
+            segmentedControl.setTitle(VectorL10n.callTransferUsers, forSegmentAt: 0)
+            segmentedControl.setTitle(VectorL10n.callTransferDialpad, forSegmentAt: 1)
+        }
+    }
+    @IBOutlet private weak var containerView: UIView!
+    @IBOutlet private weak var bottomBgView: UIView!
+    @IBOutlet private weak var consultButton: UIButton!
+    @IBOutlet private weak var connectButton: RoundedButton! {
+        didSet {
+            connectButton.isEnabled = false
+        }
+    }
+    
+    // MARK: Private
+    
+    private var selectedContact: MXKContact? {
+        didSet {
+            updateConnectButton()
+        }
+    }
+    private var phoneNumber: String? {
+        didSet {
+            updateConnectButton()
+        }
+    }
+    private var session: MXSession!
+    private var theme: Theme!
+    
+    private lazy var contactsVC: CallTransferSelectContactViewController = {
+        let controller = CallTransferSelectContactViewController.instantiate(withSession: session)
+        controller.delegate = self
+        return controller
+    }()
+    
+    private lazy var dialpadVC: DialpadViewController = {
+        let configuration = DialpadConfiguration(showsTitle: false,
+                                                 showsCloseButton: false,
+                                                 showsCallButton: false)
+        let controller = DialpadViewController.instantiate(withConfiguration: configuration)
+        controller.delegate = self
+        return controller
+    }()
+    
+    // MARK: Public
+    
+    weak var delegate: CallTransferMainViewControllerDelegate?
+    
+    // MARK: - Setup
+    
+    class func instantiate(withSession session: MXSession) -> CallTransferMainViewController {
+        let viewController = StoryboardScene.CallTransferMainViewController.initialScene.instantiate()
+        viewController.session = session
+        viewController.theme = ThemeService.shared().theme
+        return viewController
+    }
+    
+    // MARK: - Life cycle
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        // Do any additional setup after loading the view.
+        
+        self.title = VectorL10n.callTransferTitle
+        self.vc_removeBackTitle()
+        
+        self.setupViews()
+        self.registerThemeServiceDidChangeThemeNotification()
+        self.update(theme: self.theme)
+    }
+    
+    override var preferredStatusBarStyle: UIStatusBarStyle {
+        return self.theme.statusBarStyle
+    }
+    
+    // MARK: - Private
+    
+    private func updateConnectButton() {
+        if selectedContact != nil {
+            connectButton.isEnabled = true
+        } else if let phoneNumber = phoneNumber, !phoneNumber.isEmpty {
+            connectButton.isEnabled = true
+        } else {
+            connectButton.isEnabled = false
+        }
+    }
+    
+    private func setupViews() {
+        let cancelBarButtonItem = MXKBarButtonItem(title: VectorL10n.cancel, style: .plain) { [weak self] in
+            self?.cancelButtonAction()
+        }
+        self.navigationItem.leftBarButtonItem = cancelBarButtonItem
+        
+        addChild(contactsVC)
+        addChild(dialpadVC)
+        
+        if let view = contentView(at: segmentedControl.selectedSegmentIndex) {
+            containerView.vc_addSubViewMatchingParent(view)
+        }
+    }
+    
+    private func update(theme: Theme) {
+        self.theme = theme
+        
+        self.view.backgroundColor = theme.headerBackgroundColor
+        
+        if let navigationBar = self.navigationController?.navigationBar {
+            theme.applyStyle(onNavigationBar: navigationBar)
+        }
+        
+        self.bottomBgView.backgroundColor = theme.headerBackgroundColor
+        self.consultButton.tintColor = theme.tintColor
+        self.consultButton.setTitleColor(theme.textPrimaryColor, for: .normal)
+        self.connectButton.update(theme: theme)
+    }
+    
+    private func registerThemeServiceDidChangeThemeNotification() {
+        NotificationCenter.default.addObserver(self, selector: #selector(themeDidChange), name: .themeServiceDidChangeTheme, object: nil)
+    }
+    
+    private func contentView(at index: Int) -> UIView? {
+        switch index {
+        case 0:
+            return contactsVC.view
+        case 1:
+            return dialpadVC.view
+        default:
+            return nil
+        }
+    }
+
+    // MARK: - Actions
+    
+    @objc private func themeDidChange() {
+        self.update(theme: ThemeService.shared().theme)
+    }
+    
+    @IBAction private func segmentedControlValueChanged(_ sender: UISegmentedControl) {
+        containerView.vc_removeAllSubviews()
+        if let view = contentView(at: sender.selectedSegmentIndex) {
+            containerView.vc_addSubViewMatchingParent(view)
+        }
+    }
+    
+    @IBAction private func consultButtonAction(_ sender: UIButton) {
+        sender.isSelected = !sender.isSelected
+    }
+    
+    @IBAction private func connectButtonAction(_ sender: UIButton) {
+        delegate?.callTransferMainViewControllerDidComplete(self,
+                                                            consult: consultButton.isSelected,
+                                                            contact: selectedContact,
+                                                            phoneNumber: phoneNumber)
+    }
+
+    private func cancelButtonAction() {
+        self.delegate?.callTransferMainViewControllerDidCancel(self)
+    }
+}
+
+//  MARK: - CallTransferSelectContactViewControllerDelegate
+
+extension CallTransferMainViewController: CallTransferSelectContactViewControllerDelegate {
+    
+    func callTransferSelectContactViewControllerDidSelectContact(_ viewController: CallTransferSelectContactViewController, contact: MXKContact?) {
+        selectedContact = contact
+    }
+    
+}
+
+//  MARK: - DialpadViewControllerDelegate
+
+extension CallTransferMainViewController: DialpadViewControllerDelegate {
+    
+    func dialpadViewControllerDidTapDigit(_ viewController: DialpadViewController, digit: String) {
+        phoneNumber = viewController.rawPhoneNumber
+    }
+    
+}