Generate widgets

App/App_iOS.swift

@@ -25,14 +25,23 @@ struct Kiwix: App {
     @UIApplicationDelegateAdaptor(AppDelegate.self) private var appDelegate
 
     private let fileMonitor: DirectoryMonitor
+    private let activityService: ActivityService?
 
     init() {
         fileMonitor = DirectoryMonitor(url: URL.documentDirectory) { LibraryOperations.scanDirectory($0) }
+        // MARK: - live activities
+        switch AppType.current {
+        case .kiwix:
+            activityService = nil //ActivityService()
+        case .custom:
+            activityService = nil
+        }
         UNUserNotificationCenter.current().delegate = appDelegate
         // MARK: - migrations
         if !ProcessInfo.processInfo.arguments.contains("testing") {
             _ = MigrationService().migrateAll()
         }
+        
     }
 
     var body: some Scene {

Common/DownloadActivityAttributes.swift

@@ -0,0 +1,59 @@
+// This file is part of Kiwix for iOS & macOS.
+//
+// Kiwix is free software; you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// any later version.
+//
+// Kiwix is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Kiwix; If not, see https://www.gnu.org/licenses/.
+#if os(iOS)
+
+import ActivityKit
+
+public struct DownloadActivityAttributes: ActivityAttributes {
+    
+    public let title: String
+    
+    public init(title: String) {
+        self.title = title
+    }
+    
+    public struct ContentState: Codable & Hashable {
+        public let items: [DownloadItem]
+        public var totalProgress: Double {
+            let sum = items.reduce(Double(0.0), { partialResult, item in
+                partialResult + item.progress
+            })
+            return sum / Double(items.count)
+        }
+        
+        public init(items: [DownloadItem]) {
+            self.items = items
+        }
+    }
+
+    public struct DownloadItem: Codable & Hashable {
+        public let uuid: UUID
+        public let description: String
+        public let progress: Double
+        
+        public init(uuid: UUID, description: String, progress: Double) {
+            self.uuid = uuid
+            self.description = description
+            self.progress = progress
+        }
+        
+        public init(completedFor uuid: UUID) {
+            self.uuid = uuid
+            self.progress = 1.0
+            self.description = "Completed!" //TODO: update
+        }
+    }
+}
+#endif

Support/Info.plist

@@ -63,5 +63,9 @@
 			</dict>
 		</dict>
 	</array>
+	<key>NSSupportsLiveActivities</key>
+	<true/>
+	<key>NSSupportsLiveActivitiesFrequentUpdates</key>
+	<true/>
 </dict>
 </plist>

Views/LiveActivity/ActivityService.swift

@@ -12,39 +12,39 @@
 //
 // You should have received a copy of the GNU General Public License
 // along with Kiwix; If not, see https://www.gnu.org/licenses/.
-//
-//#if os(iOS)
-//
+
+#if os(iOS)
+
 import Combine
 import ActivityKit
-import KiwixWidgetsExtension
-//
-//@MainActor
-//final class ActivityService {
-//    
-//    private var cancellables = Set<AnyCancellable>()
-//    private var activity: Activity<DownloadActivityAttributes>?
-//    
-//    init(
-//        publisher: @MainActor () ->  CurrentValueSubject<[UUID: DownloadState], Never> = { DownloadService.shared.progress.publisher
-//        }
-//    ) {
-//        publisher().sink { [weak self] (state: [UUID : DownloadState]) in
-//            guard let self else { return }
-//            if state.isEmpty {
-//                stop()
-//            } else {
-//                update(state: state)
-//            }
-//        }.store(in: &cancellables)
-//    }
-//    
-//    private func start(with state: [UUID: DownloadState]) {
-//        let content = ActivityContent(
-//            state: activityState(from: state),
-//            staleDate: nil,
-//            relevanceScore: 0.0
-//        )
+
+@MainActor
+final class ActivityService {
+    
+    private var cancellables = Set<AnyCancellable>()
+    private var activity: Activity<DownloadActivityAttributes>?
+    
+    init(
+        publisher: @MainActor () ->  CurrentValueSubject<[UUID: DownloadState], Never> = { DownloadService.shared.progress.publisher
+        }
+    ) {
+        publisher().sink { [weak self] (state: [UUID : DownloadState]) in
+            guard let self else { return }
+            if state.isEmpty {
+                stop()
+            } else {
+                update(state: state)
+            }
+        }.store(in: &cancellables)
+    }
+    
+    private func start(with state: [UUID: DownloadState]) {
+        let content = ActivityContent(
+            state: activityState(from: state),
+            staleDate: nil,
+            relevanceScore: 0.0
+        )
+        debugPrint("start with: \(state)")
 //        if let activity = try? Activity
 //            .request(
 //                attributes: DownloadActivityAttributes(title: "Downloads"),
@@ -59,9 +59,10 @@ import KiwixWidgetsExtension
 //                }
 //            }
 //        }
-//    }
-//    
-//    private func update(state: [UUID: DownloadState]) {
+    }
+    
+    private func update(state: [UUID: DownloadState]) {
+        debugPrint("update state: \(state)")
 //        guard let activity else {
 //            start(with: state)
 //            return
@@ -74,9 +75,10 @@ import KiwixWidgetsExtension
 //                )
 //            )
 //        }
-//    }
-//    
-//    private func stop() {
+    }
+    
+    private func stop() {
+        debugPrint("stop")
 //        if let activity {
 //            let previousState = activity.content.state
 //            Task {
@@ -86,21 +88,21 @@ import KiwixWidgetsExtension
 //                self.activity = nil
 //            }
 //        }
-//    }
-//    
-//    private func activityState(from state: [UUID: DownloadState]) -> DownloadActivityAttributes.ContentState {
-//        DownloadActivityAttributes.ContentState(
-//            items: state.map { (key: UUID, download: DownloadState)-> DownloadActivityAttributes.DownloadItem in
-//            DownloadActivityAttributes.DownloadItem(uuid: key, description: key.uuidString, progress: Double(download.downloaded/download.total))
-//        })
-//    }
-//    
-//    private func completeState(for previousState: DownloadActivityAttributes.ContentState) -> DownloadActivityAttributes.ContentState {
-//        DownloadActivityAttributes
-//            .ContentState(items: previousState.items.map { item in
-//            DownloadActivityAttributes.DownloadItem(completedFor: item.uuid)
-//        })
-//    }
-//}
-//
-//#endif
+    }
+    
+    private func activityState(from state: [UUID: DownloadState]) -> DownloadActivityAttributes.ContentState {
+        DownloadActivityAttributes.ContentState(
+            items: state.map { (key: UUID, download: DownloadState)-> DownloadActivityAttributes.DownloadItem in
+            DownloadActivityAttributes.DownloadItem(uuid: key, description: key.uuidString, progress: Double(download.downloaded/download.total))
+        })
+    }
+    
+    private func completeState(for previousState: DownloadActivityAttributes.ContentState) -> DownloadActivityAttributes.ContentState {
+        DownloadActivityAttributes
+            .ContentState(items: previousState.items.map { item in
+            DownloadActivityAttributes.DownloadItem(completedFor: item.uuid)
+        })
+    }
+}
+
+#endif

Widgets/Assets.xcassets/AccentColor.colorset/Contents.json

@@ -0,0 +1,11 @@
+{
+  "colors" : [
+    {
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Widgets/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,35 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "platform" : "ios",
+      "size" : "1024x1024"
+    },
+    {
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "idiom" : "universal",
+      "platform" : "ios",
+      "size" : "1024x1024"
+    },
+    {
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "tinted"
+        }
+      ],
+      "idiom" : "universal",
+      "platform" : "ios",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Widgets/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Widgets/Assets.xcassets/WidgetBackground.colorset/Contents.json

@@ -0,0 +1,11 @@
+{
+  "colors" : [
+    {
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Widgets/DownloadsLiveActivity.swift

@@ -0,0 +1,94 @@
+// This file is part of Kiwix for iOS & macOS.
+//
+// Kiwix is free software; you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// any later version.
+//
+// Kiwix is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Kiwix; If not, see https://www.gnu.org/licenses/.
+
+import ActivityKit
+import WidgetKit
+import SwiftUI
+
+struct DownloadsLiveActivity: Widget {
+    var body: some WidgetConfiguration {
+        ActivityConfiguration(for: DownloadActivityAttributes.self) { context in
+            // Lock screen/banner UI goes here
+            VStack {
+                ForEach(context.state.items, id: \.uuid) { item in
+                    HStack {
+                        Text(item.description)
+                        ProgressView(value: item.progress)
+                    }
+                    
+                }
+            }
+            .activityBackgroundTint(Color.cyan)
+            .activitySystemActionForegroundColor(Color.black)
+
+        } dynamicIsland: { context in
+            DynamicIsland {
+                // Expanded UI goes here.  Compose the expanded UI through
+                // various regions, like leading/trailing/center/bottom
+                DynamicIslandExpandedRegion(.leading) {
+                    VStack {
+                        ForEach(context.state.items, id: \.uuid) { item in
+                            Text(item.description)
+                        }
+                    }
+                }
+                DynamicIslandExpandedRegion(.trailing) {
+                    ProgressView(value: context.state.totalProgress)
+                }
+                DynamicIslandExpandedRegion(.bottom) {
+                    ProgressView(value: context.state.totalProgress)
+                }
+            } compactLeading: {
+                ProgressView(value: context.state.totalProgress)
+            } compactTrailing: {
+                ProgressView(value: context.state.totalProgress)
+            } minimal: {
+                ProgressView(value: context.state.totalProgress)
+            }
+            .widgetURL(URL(string: "https://www.kiwix.org"))
+            .keylineTint(Color.red)
+        }
+    }
+}
+
+extension DownloadActivityAttributes {
+    fileprivate static var preview: DownloadActivityAttributes {
+        DownloadActivityAttributes(title: "Downloads")
+    }
+}
+
+extension DownloadActivityAttributes.ContentState {
+    fileprivate static var midProgress: DownloadActivityAttributes.ContentState {
+        DownloadActivityAttributes.ContentState(items: [
+            DownloadActivityAttributes.DownloadItem(uuid: UUID(), description: "First item", progress: 0.5),
+            DownloadActivityAttributes.DownloadItem(uuid: UUID(), description: "2nd item", progress: 0.9)
+        ])
+     }
+     
+     fileprivate static var completed: DownloadActivityAttributes.ContentState {
+         DownloadActivityAttributes.ContentState(items: [
+            DownloadActivityAttributes.DownloadItem(uuid: UUID(), description: "First item", progress: 1.0),
+             DownloadActivityAttributes.DownloadItem(uuid: UUID(), description: "2nd item", progress: 0.8)
+         ])
+     }
+}
+
+@available(iOS 18.0, *)
+#Preview("Notification", as: .content, using: DownloadActivityAttributes.preview) {
+    DownloadsLiveActivity()
+} contentStates: {
+    DownloadActivityAttributes.ContentState.midProgress
+    DownloadActivityAttributes.ContentState.completed
+}

Widgets/Info.plist

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>NSExtension</key>
+	<dict>
+		<key>NSExtensionPointIdentifier</key>
+		<string>com.apple.widgetkit-extension</string>
+	</dict>
+</dict>
+</plist>

Widgets/WidgetsBundle.swift

@@ -0,0 +1,25 @@
+// This file is part of Kiwix for iOS & macOS.
+//
+// Kiwix is free software; you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// any later version.
+//
+// Kiwix is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Kiwix; If not, see https://www.gnu.org/licenses/.
+
+import WidgetKit
+import SwiftUI
+
+@available(iOS 16.6, *)
+@main
+struct WidgetsBundle: WidgetBundle {
+    var body: some Widget {
+        DownloadsLiveActivity()
+    }
+}

project.yml

@@ -2,7 +2,7 @@ name: Kiwix
 options:
   xcodeVersion: 15.2
   deploymentTarget: # the three latest major versions should be supported
-      iOS: 16.0
+      iOS: 16.6
       macOS: 13.0
   generateEmptyDirectories: true
   useTabs: false
@@ -87,6 +87,9 @@ targetTemplates:
       - path: PrivacyInfo.xcprivacy
         destinationFilters:
           - iOS
+      - path: Common
+        destinationFilters:
+          - iOS
       - path: Contents
         includes:
           - Resources
@@ -136,6 +139,16 @@ targets:
       - path: Tests
     dependencies:
       - target: Kiwix
+  Widgets:
+    type: app-extension
+    supportedDestinations: [iOS]
+    settings:
+      base:
+        PRODUCT_BUNDLE_IDENTIFIER: self.Kiwix.widgets
+        INFOPLIST_FILE: Widgets/Info.plist
+    sources:
+      - path: Common
+      - path: Widgets
     
 schemes:
   Kiwix: