Implement the Mark All as Read button

Multiplatform/Shared/SceneModel.swift

@@ -35,6 +35,7 @@ final class SceneModel: ObservableObject {
 	private(set) var sidebarModel = SidebarModel()
 	private(set) var timelineModel = TimelineModel()
 
+	private var articlesCancellable: AnyCancellable?
 	private var selectedArticlesCancellable: AnyCancellable?
 
 	// MARK: Initialization API
@@ -50,13 +51,22 @@ final class SceneModel: ObservableObject {
 		
 		NotificationCenter.default.addObserver(self, selector: #selector(statusesDidChange(_:)), name: .StatusesDidChange, object: nil)
 
+		articlesCancellable = timelineModel.$articles.sink { [weak self] articles in
+			self?.updateMarkAllAsReadButtonsState(articles: articles)
+		}
+
 		selectedArticlesCancellable = timelineModel.$selectedArticles.sink { [weak self] articles in
-			self?.updateArticleButtonsState(articles: articles)
+			self?.updateArticleButtonsState(selectedArticles: articles)
 		}
 	}
 	
 	// MARK: Article Management API
 	
+	/// Marks all the articles in the Timeline as read
+	func markAllAsRead() {
+		timelineModel.markAllAsRead()
+	}
+	
 	/// Toggles the read status for the selected articles
 	func toggleReadStatusForSelectedArticles() {
 		timelineModel.toggleReadStatusForSelectedArticles()
@@ -123,16 +133,25 @@ private extension SceneModel {
 		guard let articleIDs = note.userInfo?[Account.UserInfoKey.articleIDs] as? Set<String> else {
 			return
 		}
+		updateMarkAllAsReadButtonsState(articles: timelineModel.articles)
 		let selectedArticleIDs = timelineModel.selectedArticles.map { $0.articleID }
 		if !articleIDs.intersection(selectedArticleIDs).isEmpty {
-			updateArticleButtonsState(articles: timelineModel.selectedArticles)
+			updateArticleButtonsState(selectedArticles: timelineModel.selectedArticles)
 		}
 	}
 	
 	// MARK: Button State Updates
 	
-	func updateArticleButtonsState(articles: [Article]) {
-		guard !articles.isEmpty else {
+	func updateMarkAllAsReadButtonsState(articles: [Article]) {
+		if articles.canMarkAllAsRead() {
+			markAllAsReadButtonState = false
+		} else {
+			markAllAsReadButtonState = nil
+		}
+	}
+	
+	func updateArticleButtonsState(selectedArticles: [Article]) {
+		guard !selectedArticles.isEmpty else {
 			readButtonState = nil
 			starButtonState = nil
 			openInBrowserButtonState = nil
@@ -140,21 +159,21 @@ private extension SceneModel {
 			return
 		}
 		
-		if articles.anyArticleIsUnread() {
+		if selectedArticles.anyArticleIsUnread() {
 			readButtonState = true
-		} else if articles.anyArticleIsReadAndCanMarkUnread() {
+		} else if selectedArticles.anyArticleIsReadAndCanMarkUnread() {
 			readButtonState = false
 		} else {
 			readButtonState = nil
 		}
 		
-		if articles.anyArticleIsUnstarred() {
+		if selectedArticles.anyArticleIsUnstarred() {
 			starButtonState = false
 		} else {
 			starButtonState = true
 		}
 		
-		if articles.count == 1, articles.first?.preferredLink != nil {
+		if selectedArticles.count == 1, selectedArticles.first?.preferredLink != nil {
 			openInBrowserButtonState = true
 			shareButtonState = true
 		} else {

Multiplatform/Shared/SceneNavigationView.swift

@@ -92,6 +92,7 @@ struct SceneNavigationView: View {
 			}
 			ToolbarItem {
 				Button {
+					sceneModel.markAllAsRead()
 				} label: {
 					AppAssets.markAllAsReadImagePDF
 						.resizable()

Multiplatform/Shared/Timeline/TimelineModel.swift

@@ -33,6 +33,12 @@ class TimelineModel: ObservableObject, UndoableCommandRunner {
 	@Published var readFilterEnabledTable = [FeedIdentifier: Bool]()
 	@Published var isReadFiltered: Bool? = nil
 
+	@Published var articles = [Article]() {
+		didSet {
+			articleDictionaryNeedsUpdate = true
+		}
+	}
+
 	var undoManager: UndoManager?
 	var undoableCommands = [UndoableCommand]()
 
@@ -45,13 +51,7 @@ class TimelineModel: ObservableObject, UndoableCommandRunner {
 	private var fetchSerialNumber = 0
 	private let fetchRequestQueue = FetchRequestQueue()
 	private var exceptionArticleFetcher: ArticleFetcher?
-	
-	private var articles = [Article]() {
-		didSet {
-			articleDictionaryNeedsUpdate = true
-		}
-	}
-	
+		
 	private var articleDictionaryNeedsUpdate = true
 	private var _idToArticleDictionary = [String: Article]()
 	private var idToArticleDictionary: [String: Article] {
@@ -198,6 +198,14 @@ class TimelineModel: ObservableObject, UndoableCommandRunner {
 		markArticlesWithUndo(articlesToMark, statusKey: .read, flag: true)
 	}
 	
+	func canMarkAllAsRead() -> Bool {
+		return articles.canMarkAllAsRead()
+	}
+	
+	func markAllAsRead() {
+		markArticlesWithUndo(articles, statusKey: .read, flag: true)
+	}
+
 	func toggleStarredStatusForSelectedArticles() {
 		guard !selectedArticles.isEmpty else {
 			return

Multiplatform/Shared/Timeline/TimelineToolbarModifier.swift

@@ -10,6 +10,7 @@ import SwiftUI
 
 struct TimelineToolbarModifier: ViewModifier {
 	
+	@EnvironmentObject private var sceneModel: SceneModel
 	@EnvironmentObject private var timelineModel: TimelineModel
 
 	func body(content: Content) -> some View {
@@ -34,9 +35,11 @@ struct TimelineToolbarModifier: ViewModifier {
 				
 				ToolbarItem {
 					Button {
+						sceneModel.markAllAsRead()
 					} label: {
 						AppAssets.markAllAsReadImage
 					}
+					.disabled(sceneModel.markAllAsReadButtonState == nil)
 					.help("Mark All As Read")
 				}