Create ShowDirectory module

2026-04-22 01:22:46 +02:00 · 2020-09-10 12:50:26 +03:00
parent 9f42f0f522
commit 595ac3e021
12 changed files with 797 additions and 0 deletions
@@ -0,0 +1,71 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Rooms2/ShowDirectory ShowDirectory
+/*
+ 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 Foundation
+import UIKit
+
+final class ShowDirectoryCoordinator: ShowDirectoryCoordinatorType {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    private let session: MXSession
+    private var showDirectoryViewModel: ShowDirectoryViewModelType
+    private let showDirectoryViewController: ShowDirectoryViewController
+    
+    // MARK: Public
+
+    // Must be used only internally
+    var childCoordinators: [Coordinator] = []
+    
+    weak var delegate: ShowDirectoryCoordinatorDelegate?
+    
+    // MARK: - Setup
+    
+    init(session: MXSession) {
+        self.session = session
+        
+        let showDirectoryViewModel = ShowDirectoryViewModel(session: self.session)
+        let showDirectoryViewController = ShowDirectoryViewController.instantiate(with: showDirectoryViewModel)
+        self.showDirectoryViewModel = showDirectoryViewModel
+        self.showDirectoryViewController = showDirectoryViewController
+    }
+    
+    // MARK: - Public methods
+    
+    func start() {            
+        self.showDirectoryViewModel.coordinatorDelegate = self
+    }
+    
+    func toPresentable() -> UIViewController {
+        return self.showDirectoryViewController
+    }
+}
+
+// MARK: - ShowDirectoryViewModelCoordinatorDelegate
+extension ShowDirectoryCoordinator: ShowDirectoryViewModelCoordinatorDelegate {
+    
+    func showDirectoryViewModel(_ viewModel: ShowDirectoryViewModelType, didCompleteWithUserDisplayName userDisplayName: String?) {
+        self.delegate?.showDirectoryCoordinator(self, didCompleteWithUserDisplayName: userDisplayName)
+    }
+    
+    func showDirectoryViewModelDidCancel(_ viewModel: ShowDirectoryViewModelType) {
+        self.delegate?.showDirectoryCoordinatorDidCancel(self)
+    }
+}
@@ -0,0 +1,29 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Rooms2/ShowDirectory ShowDirectory
+/*
+ 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 Foundation
+
+protocol ShowDirectoryCoordinatorDelegate: class {
+    func showDirectoryCoordinator(_ coordinator: ShowDirectoryCoordinatorType, didCompleteWithUserDisplayName userDisplayName: String?)
+    func showDirectoryCoordinatorDidCancel(_ coordinator: ShowDirectoryCoordinatorType)
+}
+
+/// `ShowDirectoryCoordinatorType` is a protocol describing a Coordinator that handle key backup setup passphrase navigation flow.
+protocol ShowDirectoryCoordinatorType: Coordinator, Presentable {
+    var delegate: ShowDirectoryCoordinatorDelegate? { get }
+}
@@ -0,0 +1,26 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Rooms2/ShowDirectory ShowDirectory
+/*
+ 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 Foundation
+
+/// ShowDirectoryViewController view actions exposed to view model
+enum ShowDirectoryViewAction {
+    case loadData
+    case complete
+    case cancel
+}
@@ -0,0 +1,96 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="V8j-Lb-PgC">
+    <device id="retina6_1" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14490.49"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Template Screen View Controller-->
+        <scene sceneID="mt5-wz-YKA">
+            <objects>
+                <viewController extendedLayoutIncludesOpaqueBars="YES" automaticallyAdjustsScrollViewInsets="NO" id="V8j-Lb-PgC" customClass="ShowDirectoryViewController" customModule="Riot" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="EL9-GA-lwo">
+                        <rect key="frame" x="0.0" y="0.0" width="414" height="896"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <scrollView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="9U2-KL-ZVA">
+                                <rect key="frame" x="0.0" y="44" width="414" height="852"/>
+                                <subviews>
+                                    <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="e7g-um-WO4">
+                                        <rect key="frame" x="0.0" y="0.0" width="414" height="208"/>
+                                        <subviews>
+                                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="voD-3Q-ryt">
+                                                <rect key="frame" x="0.0" y="0.0" width="414" height="208"/>
+                                                <subviews>
+                                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="A message" textAlignment="center" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="bxI-mu-qng">
+                                                        <rect key="frame" x="20" y="40" width="374" height="18"/>
+                                                        <fontDescription key="fontDescription" type="system" pointSize="15"/>
+                                                        <nil key="textColor"/>
+                                                        <nil key="highlightedColor"/>
+                                                    </label>
+                                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="DOt-5E-FjF">
+                                                        <rect key="frame" x="20" y="158" width="374" height="30"/>
+                                                        <state key="normal" title="OK"/>
+                                                        <connections>
+                                                            <action selector="doneButtonAction:" destination="V8j-Lb-PgC" eventType="touchUpInside" id="uvI-tt-Nfj"/>
+                                                        </connections>
+                                                    </button>
+                                                </subviews>
+                                                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <constraints>
+                                                    <constraint firstAttribute="trailing" secondItem="bxI-mu-qng" secondAttribute="trailing" constant="20" id="2v5-vH-NEd"/>
+                                                    <constraint firstItem="DOt-5E-FjF" firstAttribute="top" secondItem="bxI-mu-qng" secondAttribute="bottom" constant="100" id="C4r-0w-VXj"/>
+                                                    <constraint firstItem="bxI-mu-qng" firstAttribute="leading" secondItem="voD-3Q-ryt" secondAttribute="leading" constant="20" id="I1A-QW-IJG"/>
+                                                    <constraint firstAttribute="trailing" secondItem="DOt-5E-FjF" secondAttribute="trailing" constant="20" id="NKP-2G-Czj"/>
+                                                    <constraint firstItem="bxI-mu-qng" firstAttribute="top" secondItem="voD-3Q-ryt" secondAttribute="top" constant="40" id="bU7-a2-LIj"/>
+                                                    <constraint firstAttribute="bottom" secondItem="DOt-5E-FjF" secondAttribute="bottom" constant="20" id="dmC-vE-FeB"/>
+                                                    <constraint firstItem="DOt-5E-FjF" firstAttribute="leading" secondItem="voD-3Q-ryt" secondAttribute="leading" constant="20" id="flU-tM-8hK"/>
+                                                    <constraint firstAttribute="width" priority="750" constant="500" id="glD-Sz-73O"/>
+                                                </constraints>
+                                            </view>
+                                        </subviews>
+                                        <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        <constraints>
+                                            <constraint firstAttribute="bottom" secondItem="voD-3Q-ryt" secondAttribute="bottom" id="63a-5e-ptU"/>
+                                            <constraint firstItem="voD-3Q-ryt" firstAttribute="centerX" secondItem="e7g-um-WO4" secondAttribute="centerX" id="P2G-mq-gQW"/>
+                                            <constraint firstAttribute="trailing" relation="greaterThanOrEqual" secondItem="voD-3Q-ryt" secondAttribute="trailing" id="QgV-SO-5yf"/>
+                                            <constraint firstItem="voD-3Q-ryt" firstAttribute="leading" relation="greaterThanOrEqual" secondItem="e7g-um-WO4" secondAttribute="leading" id="YPo-u1-PtT"/>
+                                            <constraint firstItem="voD-3Q-ryt" firstAttribute="top" secondItem="e7g-um-WO4" secondAttribute="top" id="rhQ-96-szL"/>
+                                        </constraints>
+                                    </view>
+                                </subviews>
+                                <constraints>
+                                    <constraint firstAttribute="trailing" secondItem="e7g-um-WO4" secondAttribute="trailing" id="GyG-Fh-PME"/>
+                                    <constraint firstItem="e7g-um-WO4" firstAttribute="width" secondItem="9U2-KL-ZVA" secondAttribute="width" id="Ok2-WQ-Zgc"/>
+                                    <constraint firstAttribute="bottom" secondItem="e7g-um-WO4" secondAttribute="bottom" id="Y46-NP-zAc"/>
+                                    <constraint firstItem="e7g-um-WO4" firstAttribute="leading" secondItem="9U2-KL-ZVA" secondAttribute="leading" id="aoV-Yh-AcD"/>
+                                    <constraint firstItem="e7g-um-WO4" firstAttribute="top" secondItem="9U2-KL-ZVA" secondAttribute="top" id="pFN-bA-SHw"/>
+                                </constraints>
+                            </scrollView>
+                        </subviews>
+                        <color key="backgroundColor" red="0.94509803921568625" green="0.96078431372549022" blue="0.97254901960784312" alpha="1" colorSpace="calibratedRGB"/>
+                        <constraints>
+                            <constraint firstAttribute="bottom" secondItem="9U2-KL-ZVA" secondAttribute="bottom" id="7Cb-nY-CsO"/>
+                            <constraint firstItem="9U2-KL-ZVA" firstAttribute="leading" secondItem="bFg-jh-JZB" secondAttribute="leading" id="GdQ-hK-muG"/>
+                            <constraint firstItem="bFg-jh-JZB" firstAttribute="trailing" secondItem="9U2-KL-ZVA" secondAttribute="trailing" id="sbD-ek-vGJ"/>
+                            <constraint firstItem="bFg-jh-JZB" firstAttribute="top" secondItem="9U2-KL-ZVA" secondAttribute="top" id="wTB-V6-IHV"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="bFg-jh-JZB"/>
+                    </view>
+                    <connections>
+                        <outlet property="doneButton" destination="DOt-5E-FjF" id="ktw-U4-efQ"/>
+                        <outlet property="informationLabel" destination="bxI-mu-qng" id="pbX-aZ-inC"/>
+                        <outlet property="scrollView" destination="9U2-KL-ZVA" id="ojG-2y-X7b"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="zK0-v6-7Wt" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-3198" y="-647"/>
+        </scene>
+    </scenes>
+</document>
@@ -0,0 +1,178 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Rooms2/ShowDirectory ShowDirectory
+/*
+ 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
+
+final class ShowDirectoryViewController: UIViewController {
+    
+    // MARK: - Constants
+    
+    private enum Constants {
+        static let aConstant: Int = 666
+    }
+    
+    // MARK: - Properties
+    
+    // MARK: Outlets
+
+    @IBOutlet private weak var scrollView: UIScrollView!
+    
+    @IBOutlet private weak var informationLabel: UILabel!
+    @IBOutlet private weak var doneButton: UIButton!
+    
+    // MARK: Private
+
+    private var viewModel: ShowDirectoryViewModelType!
+    private var theme: Theme!
+    private var keyboardAvoider: KeyboardAvoider?
+    private var errorPresenter: MXKErrorPresentation!
+    private var activityPresenter: ActivityIndicatorPresenter!
+
+    // MARK: - Setup
+    
+    class func instantiate(with viewModel: ShowDirectoryViewModelType) -> ShowDirectoryViewController {
+        let viewController = StoryboardScene.ShowDirectoryViewController.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.scrollView)
+        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.headerBackgroundColor
+        
+        if let navigationBar = self.navigationController?.navigationBar {
+            theme.applyStyle(onNavigationBar: navigationBar)
+        }
+
+
+        // TODO: Set view colors here
+        self.informationLabel.textColor = theme.textPrimaryColor
+
+        self.doneButton.backgroundColor = theme.backgroundColor
+        theme.applyStyle(onButton: self.doneButton)
+    }
+    
+    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() {
+        let cancelBarButtonItem = MXKBarButtonItem(title: VectorL10n.cancel, style: .plain) { [weak self] in
+            self?.cancelButtonAction()
+        }
+        
+        self.navigationItem.rightBarButtonItem = cancelBarButtonItem
+        
+        self.title = "Template"
+        
+        self.scrollView.keyboardDismissMode = .interactive
+        
+        self.informationLabel.text = "VectorL10n.showDirectoryTitle"
+    }
+
+    private func render(viewState: ShowDirectoryViewState) {
+        switch viewState {
+        case .loading:
+            self.renderLoading()
+        case .loaded(let displayName):
+            self.renderLoaded(displayName: displayName)
+        case .error(let error):
+            self.render(error: error)
+        }
+    }
+    
+    private func renderLoading() {
+        self.activityPresenter.presentActivityIndicator(on: self.view, animated: true)
+        self.informationLabel.text = "Fetch display name"
+    }
+    
+    private func renderLoaded(displayName: String) {
+        self.activityPresenter.removeCurrentActivityIndicator(animated: true)
+
+        self.informationLabel.text = "You display name: \(displayName)"
+    }
+    
+    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 doneButtonAction(_ sender: Any) {
+        self.viewModel.process(viewAction: .complete)
+    }
+
+    private func cancelButtonAction() {
+        self.viewModel.process(viewAction: .cancel)
+    }
+}
+
+
+// MARK: - ShowDirectoryViewModelViewDelegate
+extension ShowDirectoryViewController: ShowDirectoryViewModelViewDelegate {
+
+    func showDirectoryViewModel(_ viewModel: ShowDirectoryViewModelType, didUpdateViewState viewSate: ShowDirectoryViewState) {
+        self.render(viewState: viewSate)
+    }
+}
@@ -0,0 +1,91 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Rooms2/ShowDirectory ShowDirectory
+/*
+ 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 Foundation
+
+final class ShowDirectoryViewModel: ShowDirectoryViewModelType {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+
+    private let session: MXSession
+    
+    private var currentOperation: MXHTTPOperation?
+    private var userDisplayName: String?
+    
+    // MARK: Public
+
+    weak var viewDelegate: ShowDirectoryViewModelViewDelegate?
+    weak var coordinatorDelegate: ShowDirectoryViewModelCoordinatorDelegate?
+    
+    // MARK: - Setup
+    
+    init(session: MXSession) {
+        self.session = session
+    }
+    
+    deinit {
+        self.cancelOperations()
+    }
+    
+    // MARK: - Public
+    
+    func process(viewAction: ShowDirectoryViewAction) {
+        switch viewAction {
+        case .loadData:
+            self.loadData()
+        case .complete:
+            self.coordinatorDelegate?.showDirectoryViewModel(self, didCompleteWithUserDisplayName: self.userDisplayName)
+        case .cancel:
+            self.cancelOperations()
+            self.coordinatorDelegate?.showDirectoryViewModelDidCancel(self)
+        }
+    }
+    
+    // MARK: - Private
+    
+    private func loadData() {
+
+        self.update(viewState: .loading)
+
+        // Check first that the user homeserver is federated with the  Riot-bot homeserver
+        self.currentOperation = self.session.matrixRestClient.displayName(forUser: self.session.myUser.userId) { [weak self]  (response) in
+
+            guard let self = self else {
+                return
+            }
+            
+            switch response {
+            case .success(let userDisplayName):
+                self.update(viewState: .loaded(userDisplayName))
+                self.userDisplayName = userDisplayName
+            case .failure(let error):
+                self.update(viewState: .error(error))
+            }
+        }
+    }
+    
+    private func update(viewState: ShowDirectoryViewState) {
+        self.viewDelegate?.showDirectoryViewModel(self, didUpdateViewState: viewState)
+    }
+    
+    private func cancelOperations() {
+        self.currentOperation?.cancel()
+    }
+}
@@ -0,0 +1,37 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Rooms2/ShowDirectory ShowDirectory
+/*
+ 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 Foundation
+
+protocol ShowDirectoryViewModelViewDelegate: class {
+    func showDirectoryViewModel(_ viewModel: ShowDirectoryViewModelType, didUpdateViewState viewSate: ShowDirectoryViewState)
+}
+
+protocol ShowDirectoryViewModelCoordinatorDelegate: class {
+    func showDirectoryViewModel(_ viewModel: ShowDirectoryViewModelType, didCompleteWithUserDisplayName userDisplayName: String?)
+    func showDirectoryViewModelDidCancel(_ viewModel: ShowDirectoryViewModelType)
+}
+
+/// Protocol describing the view model used by `ShowDirectoryViewController`
+protocol ShowDirectoryViewModelType {        
+        
+    var viewDelegate: ShowDirectoryViewModelViewDelegate? { get set }
+    var coordinatorDelegate: ShowDirectoryViewModelCoordinatorDelegate? { get set }
+    
+    func process(viewAction: ShowDirectoryViewAction)
+}
@@ -0,0 +1,26 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Rooms2/ShowDirectory ShowDirectory
+/*
+ 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 Foundation
+
+/// ShowDirectoryViewController view state
+enum ShowDirectoryViewState {
+    case loading
+    case loaded(_ displayName: String)
+    case error(Error)
+}