Invite to Space in room landing #5225

- added room option bottom sheet

Riot/Modules/Room/ParticipantsInviteModal/OptionList/OptionListViewController.swift

@@ -0,0 +1,212 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Room/ParticipantsInviteModal/OptionList OptionList
+/*
+ Copyright 2021 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
+
+final class OptionListViewController: UIViewController {
+    
+    // MARK: - Constants
+    
+    private enum Constants {
+        static let estimatedRowHeight: CGFloat = 80.0
+    }
+    
+    // MARK: - Properties
+    
+    // MARK: Outlets
+
+    @IBOutlet private weak var titleLabel: UILabel!
+    @IBOutlet private weak var closeButton: UIButton!
+    @IBOutlet private weak var tableView: UITableView!
+    @IBOutlet private weak var bottomMargin: NSLayoutConstraint!
+
+    // MARK: Private
+
+    private var viewModel: OptionListViewModelProtocol!
+    private var theme: Theme!
+    private var keyboardAvoider: KeyboardAvoider?
+    private var errorPresenter: MXKErrorPresentation!
+    private var activityPresenter: ActivityIndicatorPresenter!
+    private var options: [OptionListItemViewData] = []
+
+    // MARK: - Setup
+    
+    class func instantiate(with viewModel: OptionListViewModelProtocol) -> OptionListViewController {
+        let viewController = StoryboardScene.OptionListViewController.initialScene.instantiate()
+        viewController.viewModel = viewModel
+        viewController.theme = ThemeService.shared().theme
+        return viewController
+    }
+    
+    // MARK: - Life cycle
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        // Do any additional setup after loading the view.
+        
+        self.setupViews()
+        self.keyboardAvoider = KeyboardAvoider(scrollViewContainerView: self.view, scrollView: self.tableView)
+        self.activityPresenter = ActivityIndicatorPresenter()
+        self.errorPresenter = MXKErrorAlertPresentation()
+        
+        self.registerThemeServiceDidChangeThemeNotification()
+        self.update(theme: self.theme)
+        
+        self.viewModel.viewDelegate = self
+
+        self.viewModel.process(viewAction: .loadData)
+    }
+
+    override func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+        
+        self.keyboardAvoider?.startAvoiding()
+    }
+    
+    override func viewDidDisappear(_ animated: Bool) {
+        super.viewDidDisappear(animated)
+        
+        self.keyboardAvoider?.stopAvoiding()
+    }
+    
+    override var preferredStatusBarStyle: UIStatusBarStyle {
+        return self.theme.statusBarStyle
+    }
+    
+    // MARK: - Private
+    
+    private func update(theme: Theme) {
+        self.theme = theme
+        
+        self.view.backgroundColor = theme.backgroundColor
+        self.tableView.backgroundColor = theme.backgroundColor
+
+        self.titleLabel.textColor = theme.colors.primaryContent
+        self.titleLabel.font = theme.fonts.title3SB
+        
+        self.closeButton.backgroundColor = theme.roomInputTextBorder
+        self.closeButton.tintColor = theme.noticeSecondaryColor
+        
+        self.tableView.reloadData()
+    }
+    
+    private func registerThemeServiceDidChangeThemeNotification() {
+        NotificationCenter.default.addObserver(self, selector: #selector(themeDidChange), name: .themeServiceDidChangeTheme, object: nil)
+    }
+    
+    @objc private func themeDidChange() {
+        self.update(theme: ThemeService.shared().theme)
+    }
+    
+    private func setupViews() {
+        self.setupTableView()
+        
+        self.closeButton.layer.masksToBounds = true
+        self.closeButton.layer.cornerRadius = self.closeButton.bounds.height / 2
+    }
+    
+    private func setupTableView() {
+        self.tableView.separatorStyle = .none
+        self.tableView.rowHeight = UITableView.automaticDimension
+        self.tableView.estimatedRowHeight = Constants.estimatedRowHeight
+        self.tableView.allowsSelection = true
+        self.tableView.register(cellType: OptionListViewCell.self)
+        self.tableView.tableFooterView = UIView()
+    }
+
+    private func render(viewState: OptionListViewState) {
+        switch viewState {
+        case .idle:
+            break
+        case .loading:
+            self.renderLoading()
+        case .loaded(let title, let options):
+            self.renderLoaded(title: title, options: options)
+        case .error(let error):
+            self.render(error: error)
+        }
+    }
+    
+    private func renderLoading() {
+        self.activityPresenter.presentActivityIndicator(on: self.view, animated: true)
+    }
+    
+    private func renderLoaded(title: String?, options: [OptionListItemViewData]) {
+        self.activityPresenter.removeCurrentActivityIndicator(animated: true)
+        self.titleLabel.text = title
+        self.options = options
+    }
+    
+    private func render(error: Error) {
+        self.activityPresenter.removeCurrentActivityIndicator(animated: true)
+        self.errorPresenter.presentError(from: self, forError: error, animated: true, handler: nil)
+    }
+
+    
+    // MARK: - Actions
+    
+    @IBAction private func closeAction(_ sender: Any) {
+        self.viewModel.process(viewAction: .cancel)
+    }
+}
+
+
+// MARK: - OptionListViewModelViewDelegate
+extension OptionListViewController: OptionListViewModelViewDelegate {
+
+    func optionListViewModel(_ viewModel: OptionListViewModelProtocol, didUpdateViewState viewSate: OptionListViewState) {
+        self.render(viewState: viewSate)
+    }
+}
+
+// MARK: - SlidingModalPresentable
+extension OptionListViewController: SlidingModalPresentable {
+    func allowsDismissOnBackgroundTap() -> Bool {
+        return true
+    }
+    
+    func layoutHeightFittingWidth(_ width: CGFloat) -> CGFloat {
+        return tableView.frame.minY + Constants.estimatedRowHeight * CGFloat(options.count) + bottomMargin.constant
+    }
+}
+
+// MARK: - UITableViewDataSource
+extension OptionListViewController: UITableViewDataSource {
+    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return options.count
+    }
+    
+    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let viewData = options[indexPath.row]
+        
+        let cell = tableView.dequeueReusableCell(for: indexPath, cellType: OptionListViewCell.self)
+        cell.update(theme: self.theme)
+        cell.update(with: viewData)
+
+        return cell
+    }
+}
+
+// MARK: - UITableViewDelegate
+extension OptionListViewController: UITableViewDelegate {
+    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        tableView.deselectRow(at: indexPath, animated: true)
+        viewModel.process(viewAction: .selected(indexPath.row))
+    }
+}