[AltWidget] Supports refreshing apps directly from home screen

AltStore/Intents/App Intents/RefreshAllAppsIntent.swift

@@ -69,12 +69,21 @@ struct RefreshAllAppsIntent: AppIntent, CustomIntentMigratedAppIntent, Predictab
         }
     }
     
+    let presentsNotifications: Bool
+    
     private let operationActor = OperationActor()
     
+    init(presentsNotifications: Bool)
+    {
+        self.presentsNotifications = presentsNotifications
+        
+        self.progress.completedUnitCount = 0
+        self.progress.totalUnitCount = 1
+    }
+    
     init()
     {
-        self.progress.completedUnitCount = 0
-        self.progress.totalUnitCount = 1
+        self.init(presentsNotifications: false)
     }
     
     func perform() async throws -> some IntentResult & ProvidesDialog
@@ -99,6 +108,7 @@ struct RefreshAllAppsIntent: AppIntent, CustomIntentMigratedAppIntent, Predictab
                     for try await _ in taskGroup.prefix(1)
                     {
                         // We only care about the first child task to complete.
+                        taskGroup.cancelAll()
                         break
                     }
                 }
@@ -148,7 +158,7 @@ private extension RefreshAllAppsIntent
         let installedApps = await context.perform { InstalledApp.fetchAppsForRefreshingAll(in: context) }
         
         try await withCheckedThrowingContinuation { continuation in
-            let operation = AppManager.shared.backgroundRefresh(installedApps, presentsNotifications: false) { (result) in
+            let operation = AppManager.shared.backgroundRefresh(installedApps, presentsNotifications: self.presentsNotifications) { (result) in
                 do
                 {
                     let results = try result.get()

AltStore/Intents/App Intents/RefreshAllAppsWidgetIntent.swift

@@ -0,0 +1,38 @@
+//
+//  RefreshAllAppsWidgetIntent.swift
+//  AltStore
+//
+//  Created by Riley Testut on 8/18/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import AppIntents
+
+@available(iOS 17, *)
+struct RefreshAllAppsWidgetIntent: AppIntent, ProgressReportingIntent
+{
+    static var title: LocalizedStringResource { "Refresh Apps via Widget" }
+    static var isDiscoverable: Bool { false } // Don't show in Shortcuts or Spotlight.
+    
+    #if !WIDGET_EXTENSION
+    private let intent = RefreshAllAppsIntent(presentsNotifications: true)
+    #endif
+    
+    func perform() async throws -> some IntentResult & ProvidesDialog
+    {
+    #if WIDGET_EXTENSION
+        return .result(dialog: "")
+    #else
+        return try await self.intent.perform()
+    #endif
+    }
+}
+
+// To ensure this intent is handled by the app itself (and not widget extension)
+// we need to conform to either `ForegroundContinuableIntent` or `AudioPlaybackIntent`.
+// https://mastodon.social/@mgorbach/110812347476671807
+//
+// Unfortunately `ForegroundContinuableIntent` is marked as unavailable in app extensions,
+// so we conform to AudioPlaybackIntent instead despite not playing audio ¯\_(ツ)_/¯
+@available(iOS 17, *)
+extension RefreshAllAppsWidgetIntent: AudioPlaybackIntent {}