Implements #4693 - Alert users of Element on iOS11 deprecation.

2026-04-20 16:42:44 +02:00 · 2021-08-24 14:58:12 +03:00
parent 5c3f054a63
commit 95572d5e44
24 changed files with 823 additions and 26 deletions
@@ -0,0 +1,128 @@
+// 
+// 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 Foundation
+
+private let osVersionToBeDropped = 11
+private let hasOSVersionBeenDropped = false
+
+class VersionCheckCoordinator: VersionCheckBannerViewDelegate, VersionCheckAlertViewControllerDelegate {
+    
+    private let rootViewController: UIViewController
+    private let bannerPresenter: BannerPresentationProtocol
+    private let themeService: ThemeService
+    
+    @UserDefaultsBacked(key: "versionCheckCoordinatorNextDisplayDateTimeInterval")
+    private var nextDisplayDateTimeInterval: Double?
+    
+    private var versionCheckBannerView: VersionCheckBannerView?
+    
+    init(rootViewController: UIViewController, bannerPresenter: BannerPresentationProtocol, themeService: ThemeService) {
+        self.rootViewController = rootViewController
+        self.bannerPresenter = bannerPresenter
+        self.themeService = themeService
+        
+        NotificationCenter.default.addObserver(self, selector: #selector(updateTheme), name: .themeServiceDidChangeTheme, object: nil)
+    }
+    
+    func performVersionCheck() {
+        let majorOSVersion = ProcessInfo().operatingSystemVersion.majorVersion
+        
+        guard majorOSVersion < osVersionToBeDropped else {
+            return
+        }
+        
+        if let timeInterval = nextDisplayDateTimeInterval {
+            let nextDisplayDate = Date(timeIntervalSince1970: timeInterval)
+            if nextDisplayDate > Date() {
+                return
+            }
+        }
+        
+        let versionCheckBannerView = VersionCheckBannerView.loadFromNib()
+        versionCheckBannerView.delegate = self
+        versionCheckBannerView.update(theme: themeService.theme)
+        
+        if hasOSVersionBeenDropped {
+            versionCheckBannerView.configureWithDetails(VersionCheckBannerViewDetails(title: VectorL10n.versionCheckBannerTitleDeprecated(String(osVersionToBeDropped)),
+                                                                                      subtitle: VectorL10n.versionCheckBannerSubtitleDeprecated(String(osVersionToBeDropped))))
+        } else {
+            versionCheckBannerView.configureWithDetails(VersionCheckBannerViewDetails(title: VectorL10n.versionCheckBannerTitleSupported(String(osVersionToBeDropped)),
+                                                                                      subtitle: VectorL10n.versionCheckBannerSubtitleSupported(String(osVersionToBeDropped))))
+        }
+        
+        bannerPresenter.presentBannerView(versionCheckBannerView, animated: true)
+        self.versionCheckBannerView = versionCheckBannerView
+    }
+    
+    // MARK: - VersionDropBannerViewDelegate
+    
+    func bannerViewDidRequestDismissal(_ bannerView: VersionCheckBannerView) {
+        dismissVersionCheckBanner()
+    }
+    
+    func bannerViewDidRequestInteraction(_ bannerView: VersionCheckBannerView) {
+        
+        let versionCheckAlertViewController = VersionCheckAlertViewController.instantiate(themeService: themeService)
+        versionCheckAlertViewController.delegate = self
+        
+        if hasOSVersionBeenDropped {
+            versionCheckAlertViewController.configureWithDetails(VersionCheckAlertViewControllerDetails(title: VectorL10n.versionCheckModalTitleDeprecated(String(osVersionToBeDropped)),
+                                                                                                        subtitle: VectorL10n.versionCheckModalSubtitleDeprecated,
+                                                                                                        actionButtonTitle: VectorL10n.versionCheckModalActionTitleDeprecated))
+        } else {
+            versionCheckAlertViewController.configureWithDetails(VersionCheckAlertViewControllerDetails(title: VectorL10n.versionCheckModalTitleSupported(String(osVersionToBeDropped)),
+                                                                                                        subtitle: VectorL10n.versionCheckModalSubtitleSupported,
+                                                                                                        actionButtonTitle: VectorL10n.versionCheckModalActionTitleSupported))
+        }
+        
+        rootViewController.present(versionCheckAlertViewController, animated: true) {
+            self.dismissVersionCheckBanner()
+        }
+    }
+    
+    // MARK: - VersionCheckAlertViewControllerDelegate
+    
+    func alertViewControllerDidRequestDismissal(_ alertViewController: VersionCheckAlertViewController) {
+        rootViewController.dismiss(animated: true, completion: nil)
+    }
+    
+    func alertViewControllerDidRequestAction(_ alertViewController: VersionCheckAlertViewController) {
+        rootViewController.dismiss(animated: true, completion: nil)
+        
+        guard hasOSVersionBeenDropped else {
+            return
+        }
+        
+        if let url = URL(string: "https://support.apple.com/en-gb/guide/iphone/iph3e504502/ios") {
+            UIApplication.shared.open(url, options: [:], completionHandler: nil)
+        }
+    }
+    
+    // MARK: - Private
+    
+    private func dismissVersionCheckBanner() {
+        bannerPresenter.dismissBannerView(animated: true)
+        
+        let nextDisplayDate = Calendar.current.date(byAdding: .month, value: 1, to: Date())
+        nextDisplayDateTimeInterval = nextDisplayDate?.timeIntervalSince1970
+    }
+    
+    @objc private func updateTheme() {
+        let theme = themeService.theme
+        versionCheckBannerView?.update(theme: theme)
+    }
+}