1673 lines
46 KiB
Swift
1673 lines
46 KiB
Swift
//
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// NavigationModelController.swift
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// NetNewsWire-iOS
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//
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// Created by Maurice Parker on 4/21/19.
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// Copyright © 2019 Ranchero Software. All rights reserved.
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//
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import UIKit
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import SwiftUI
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import Account
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import Articles
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import RSCore
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import RSTree
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enum SearchScope: Int {
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case timeline = 0
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case global = 1
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}
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class SceneCoordinator: NSObject, UndoableCommandRunner, UnreadCountProvider {
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var undoableCommands = [UndoableCommand]()
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var undoManager: UndoManager? {
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return rootSplitViewController.undoManager
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}
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private var activityManager = ActivityManager()
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private var isShowingExtractedArticle = false
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private var articleExtractor: ArticleExtractor? = nil
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private var rootSplitViewController: RootSplitViewController!
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private var masterNavigationController: UINavigationController!
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private var masterFeedViewController: MasterFeedViewController!
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private var masterTimelineViewController: MasterTimelineViewController?
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private var subSplitViewController: UISplitViewController? {
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return rootSplitViewController.children.last as? UISplitViewController
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}
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private var articleViewController: ArticleViewController? {
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if let detail = masterNavigationController.viewControllers.last as? ArticleViewController {
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return detail
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}
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if let subSplit = subSplitViewController {
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if let navController = subSplit.viewControllers.last as? UINavigationController {
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return navController.topViewController as? ArticleViewController
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}
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} else {
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if let navController = rootSplitViewController.viewControllers.last as? UINavigationController {
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return navController.topViewController as? ArticleViewController
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}
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}
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return nil
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}
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private let fetchAndMergeArticlesQueue = CoalescingQueue(name: "Fetch and Merge Articles", interval: 0.5)
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private var fetchSerialNumber = 0
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private let fetchRequestQueue = FetchRequestQueue()
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private var animatingChanges = false
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private var shadowTable = [[Node]]()
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private var lastSearchString = ""
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private var lastSearchScope: SearchScope? = nil
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private var isSearching: Bool = false
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private var searchArticleIds: Set<String>? = nil
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private(set) var sortDirection = AppDefaults.timelineSortDirection {
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didSet {
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if sortDirection != oldValue {
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sortParametersDidChange()
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}
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}
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}
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private(set) var groupByFeed = AppDefaults.timelineGroupByFeed {
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didSet {
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if groupByFeed != oldValue {
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sortParametersDidChange()
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}
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}
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}
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private let treeControllerDelegate = FeedTreeControllerDelegate()
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private lazy var treeController: TreeController = {
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return TreeController(delegate: treeControllerDelegate)
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}()
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var stateRestorationActivity: NSUserActivity? {
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return activityManager.stateRestorationActivity
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}
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var isRootSplitCollapsed: Bool {
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return rootSplitViewController.isCollapsed
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}
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var isThreePanelMode: Bool {
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return subSplitViewController != nil
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}
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var rootNode: Node {
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return treeController.rootNode
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}
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private(set) var currentFeedIndexPath: IndexPath?
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var timelineFavicon: RSImage? {
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return (timelineFetcher as? SmallIconProvider)?.smallIcon
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}
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var timelineName: String? {
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return (timelineFetcher as? DisplayNameProvider)?.nameForDisplay
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}
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var timelineFetcher: ArticleFetcher? {
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didSet {
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if timelineFetcher is Feed {
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showFeedNames = false
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} else {
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showFeedNames = true
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}
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if isSearching {
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fetchAndReplaceArticlesAsync {
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self.masterTimelineViewController?.reinitializeArticles()
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}
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} else {
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fetchAndReplaceArticlesSync()
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masterTimelineViewController?.reinitializeArticles()
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}
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}
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}
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private(set) var showFeedNames = false
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private(set) var showAvatars = false
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var isPrevFeedAvailable: Bool {
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guard let indexPath = currentFeedIndexPath else {
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return false
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}
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return indexPath.section > 0 || indexPath.row > 0
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}
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var isNextFeedAvailable: Bool {
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guard let indexPath = currentFeedIndexPath else {
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return false
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}
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let nextIndexPath: IndexPath = {
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if indexPath.row + 1 >= shadowTable[indexPath.section].count {
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return IndexPath(row: 0, section: indexPath.section + 1)
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} else {
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return IndexPath(row: indexPath.row + 1, section: indexPath.section)
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}
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}()
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return nextIndexPath.section < shadowTable.count && nextIndexPath.row < shadowTable[nextIndexPath.section].count
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}
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var prevFeedIndexPath: IndexPath? {
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guard isPrevFeedAvailable, let indexPath = currentFeedIndexPath else {
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return nil
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}
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let prevIndexPath: IndexPath = {
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if indexPath.row - 1 < 0 {
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return IndexPath(row: shadowTable[indexPath.section - 1].count - 1, section: indexPath.section - 1)
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} else {
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return IndexPath(row: indexPath.row - 1, section: indexPath.section)
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}
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}()
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return prevIndexPath
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}
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var nextFeedIndexPath: IndexPath? {
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guard isNextFeedAvailable, let indexPath = currentFeedIndexPath else {
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return nil
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}
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let nextIndexPath: IndexPath = {
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if indexPath.row + 1 >= shadowTable[indexPath.section].count {
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return IndexPath(row: 0, section: indexPath.section + 1)
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} else {
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return IndexPath(row: indexPath.row + 1, section: indexPath.section)
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}
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}()
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return nextIndexPath
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}
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var isPrevArticleAvailable: Bool {
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guard let articleRow = currentArticleRow else {
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return false
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}
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return articleRow > 0
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}
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var isNextArticleAvailable: Bool {
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guard let articleRow = currentArticleRow else {
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return false
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}
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return articleRow + 1 < articles.count
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}
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var prevArticle: Article? {
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guard isPrevArticleAvailable, let articleRow = currentArticleRow else {
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return nil
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}
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return articles[articleRow - 1]
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}
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var nextArticle: Article? {
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guard isNextArticleAvailable, let articleRow = currentArticleRow else {
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return nil
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}
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return articles[articleRow + 1]
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}
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var firstUnreadArticleIndexPath: IndexPath? {
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for (row, article) in articles.enumerated() {
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if !article.status.read {
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return IndexPath(row: row, section: 0)
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}
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}
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return nil
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}
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var currentArticle: Article?
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private(set) var articles = ArticleArray()
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private var currentArticleRow: Int? {
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guard let article = currentArticle else { return nil }
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return articles.firstIndex(of: article)
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}
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var isTimelineUnreadAvailable: Bool {
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if let unreadProvider = timelineFetcher as? UnreadCountProvider {
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return unreadProvider.unreadCount > 0
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}
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return false
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}
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var isAnyUnreadAvailable: Bool {
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return appDelegate.unreadCount > 0
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}
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var unreadCount: Int = 0 {
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didSet {
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if unreadCount != oldValue {
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postUnreadCountDidChangeNotification()
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}
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}
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}
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override init() {
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super.init()
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for section in treeController.rootNode.childNodes {
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section.isExpanded = true
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shadowTable.append([Node]())
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}
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rebuildShadowTable()
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NotificationCenter.default.addObserver(self, selector: #selector(statusesDidChange(_:)), name: .StatusesDidChange, object: nil)
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NotificationCenter.default.addObserver(self, selector: #selector(containerChildrenDidChange(_:)), name: .ChildrenDidChange, object: nil)
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NotificationCenter.default.addObserver(self, selector: #selector(batchUpdateDidPerform(_:)), name: .BatchUpdateDidPerform, object: nil)
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NotificationCenter.default.addObserver(self, selector: #selector(displayNameDidChange(_:)), name: .DisplayNameDidChange, object: nil)
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NotificationCenter.default.addObserver(self, selector: #selector(accountStateDidChange(_:)), name: .AccountStateDidChange, object: nil)
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NotificationCenter.default.addObserver(self, selector: #selector(userDidAddAccount(_:)), name: .UserDidAddAccount, object: nil)
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NotificationCenter.default.addObserver(self, selector: #selector(userDidDeleteAccount(_:)), name: .UserDidDeleteAccount, object: nil)
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NotificationCenter.default.addObserver(self, selector: #selector(userDefaultsDidChange(_:)), name: UserDefaults.didChangeNotification, object: nil)
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NotificationCenter.default.addObserver(self, selector: #selector(accountDidDownloadArticles(_:)), name: .AccountDidDownloadArticles, object: nil)
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}
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func start(for size: CGSize) -> UIViewController {
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rootSplitViewController = RootSplitViewController()
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rootSplitViewController.coordinator = self
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rootSplitViewController.preferredDisplayMode = .allVisible
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rootSplitViewController.viewControllers = [ThemedNavigationController.template()]
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rootSplitViewController.delegate = self
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masterNavigationController = (rootSplitViewController.viewControllers.first as! UINavigationController)
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masterNavigationController.delegate = self
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masterFeedViewController = UIStoryboard.main.instantiateController(ofType: MasterFeedViewController.self)
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masterFeedViewController.coordinator = self
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masterNavigationController.pushViewController(masterFeedViewController, animated: false)
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let articleViewController = UIStoryboard.main.instantiateController(ofType: ArticleViewController.self)
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articleViewController.coordinator = self
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let detailNavigationController = addNavControllerIfNecessary(articleViewController, showButton: false)
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rootSplitViewController.showDetailViewController(detailNavigationController, sender: self)
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configureThreePanelMode(for: size)
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return rootSplitViewController
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}
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func handle(_ activity: NSUserActivity) {
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selectFeed(nil)
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guard let activityType = ActivityType(rawValue: activity.activityType) else { return }
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switch activityType {
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case .selectToday:
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handleSelectToday()
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case .selectAllUnread:
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handleSelectAllUnread()
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case .selectStarred:
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handleSelectStarred()
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case .selectFolder:
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handleSelectFolder(activity)
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case .selectFeed:
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handleSelectFeed(activity)
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case .nextUnread:
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selectFirstUnreadInAllUnread()
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case .readArticle:
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handleReadArticle(activity)
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}
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}
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func configureThreePanelMode(for size: CGSize) {
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guard rootSplitViewController.traitCollection.userInterfaceIdiom == .pad && !rootSplitViewController.isCollapsed else {
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return
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}
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if size.width > size.height {
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if !isThreePanelMode {
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transitionToThreePanelMode()
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}
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} else {
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if isThreePanelMode {
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transitionFromThreePanelMode()
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}
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}
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}
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func selectFirstUnreadInAllUnread() {
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selectFeed(IndexPath(row: 1, section: 0))
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selectFirstUnreadArticleInTimeline()
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}
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func showSearch() {
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selectFeed(nil)
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installTimelineControllerIfNecessary(animated: false)
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DispatchQueue.main.asyncAfter(deadline: .now()) {
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self.masterTimelineViewController!.showSearchAll()
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}
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}
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// MARK: Notifications
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@objc func statusesDidChange(_ note: Notification) {
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updateUnreadCount()
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}
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@objc func containerChildrenDidChange(_ note: Notification) {
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if timelineFetcherContainsAnyPseudoFeed() || timelineFetcherContainsAnyFolder() {
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fetchAndReplaceArticlesAsync() {}
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}
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rebuildBackingStores()
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}
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@objc func batchUpdateDidPerform(_ notification: Notification) {
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rebuildBackingStores()
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}
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@objc func displayNameDidChange(_ note: Notification) {
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rebuildBackingStores()
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}
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@objc func accountStateDidChange(_ note: Notification) {
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if timelineFetcherContainsAnyPseudoFeed() {
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fetchAndReplaceArticlesSync()
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}
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guard let account = note.userInfo?[Account.UserInfoKey.account] as? Account else {
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assertionFailure()
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return
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}
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rebuildBackingStores() {
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// If we are activating an account, then automatically expand it
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if account.isActive, let node = self.treeController.rootNode.childNodeRepresentingObject(account) {
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node.isExpanded = true
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}
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}
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}
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@objc func userDidAddAccount(_ note: Notification) {
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if timelineFetcherContainsAnyPseudoFeed() {
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fetchAndReplaceArticlesSync()
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}
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rebuildBackingStores() {
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// Automatically expand any new accounts
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if let account = note.userInfo?[Account.UserInfoKey.account] as? Account,
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let node = self.treeController.rootNode.childNodeRepresentingObject(account) {
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node.isExpanded = true
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}
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}
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}
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@objc func userDidDeleteAccount(_ note: Notification) {
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if timelineFetcherContainsAnyPseudoFeed() {
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fetchAndReplaceArticlesSync()
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}
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rebuildBackingStores()
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}
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@objc func userDefaultsDidChange(_ note: Notification) {
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self.sortDirection = AppDefaults.timelineSortDirection
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self.groupByFeed = AppDefaults.timelineGroupByFeed
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}
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@objc func accountDidDownloadArticles(_ note: Notification) {
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guard let feeds = note.userInfo?[Account.UserInfoKey.feeds] as? Set<Feed> else {
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return
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}
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let shouldFetchAndMergeArticles = timelineFetcherContainsAnyFeed(feeds) || timelineFetcherContainsAnyPseudoFeed()
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if shouldFetchAndMergeArticles {
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queueFetchAndMergeArticles()
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}
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}
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// MARK: API
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func shadowNodesFor(section: Int) -> [Node] {
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return shadowTable[section]
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}
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func cappedIndexPath(_ indexPath: IndexPath) -> IndexPath {
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guard indexPath.section < shadowTable.count && indexPath.row < shadowTable[indexPath.section].count else {
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return IndexPath(row: shadowTable[shadowTable.count - 1].count - 1, section: shadowTable.count - 1)
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}
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return indexPath
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}
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func unreadCountFor(_ node: Node) -> Int {
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// The coordinator supplies the unread count for the currently selected feed node
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if let indexPath = currentFeedIndexPath, let selectedNode = nodeFor(indexPath), selectedNode == node {
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return unreadCount
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}
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if let unreadCountProvider = node.representedObject as? UnreadCountProvider {
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return unreadCountProvider.unreadCount
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}
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return 0
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}
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func expand(_ node: Node) {
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node.isExpanded = true
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animatingChanges = true
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rebuildShadowTable()
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animatingChanges = false
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}
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func expandAllSectionsAndFolders() {
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for sectionNode in treeController.rootNode.childNodes {
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sectionNode.isExpanded = true
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for topLevelNode in sectionNode.childNodes {
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if topLevelNode.representedObject is Folder {
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topLevelNode.isExpanded = true
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}
|
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}
|
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}
|
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animatingChanges = true
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rebuildShadowTable()
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animatingChanges = false
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}
|
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|
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func collapse(_ node: Node) {
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node.isExpanded = false
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animatingChanges = true
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rebuildShadowTable()
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animatingChanges = false
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}
|
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|
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func collapseAllFolders() {
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for sectionNode in treeController.rootNode.childNodes {
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sectionNode.isExpanded = true
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for topLevelNode in sectionNode.childNodes {
|
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if topLevelNode.representedObject is Folder {
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topLevelNode.isExpanded = true
|
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}
|
||
}
|
||
}
|
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animatingChanges = true
|
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rebuildShadowTable()
|
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animatingChanges = false
|
||
}
|
||
|
||
func masterFeedIndexPathForCurrentTimeline() -> IndexPath? {
|
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guard let node = treeController.rootNode.descendantNodeRepresentingObject(timelineFetcher as AnyObject) else {
|
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return nil
|
||
}
|
||
return indexPathFor(node)
|
||
}
|
||
|
||
func selectFeed(_ indexPath: IndexPath?, automated: Bool = true) {
|
||
guard indexPath != currentFeedIndexPath else { return }
|
||
|
||
selectArticle(nil)
|
||
currentFeedIndexPath = indexPath
|
||
|
||
masterFeedViewController.updateFeedSelection()
|
||
|
||
if let ip = indexPath, let node = nodeFor(ip), let fetcher = node.representedObject as? ArticleFetcher {
|
||
timelineFetcher = fetcher
|
||
updateSelectingActivity(with: node)
|
||
installTimelineControllerIfNecessary(animated: !automated)
|
||
} else {
|
||
timelineFetcher = nil
|
||
activityManager.invalidateSelecting()
|
||
if rootSplitViewController.isCollapsed && navControllerForTimeline().viewControllers.last is MasterTimelineViewController {
|
||
navControllerForTimeline().popViewController(animated: !automated)
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
func selectPrevFeed() {
|
||
if let indexPath = prevFeedIndexPath {
|
||
selectFeed(indexPath)
|
||
}
|
||
}
|
||
|
||
func selectNextFeed() {
|
||
if let indexPath = nextFeedIndexPath {
|
||
selectFeed(indexPath)
|
||
}
|
||
}
|
||
|
||
func selectTodayFeed() {
|
||
masterFeedViewController?.ensureSectionIsExpanded(0) {
|
||
self.selectFeed(IndexPath(row: 0, section: 0))
|
||
}
|
||
}
|
||
|
||
func selectAllUnreadFeed() {
|
||
masterFeedViewController?.ensureSectionIsExpanded(0) {
|
||
self.selectFeed(IndexPath(row: 1, section: 0))
|
||
}
|
||
}
|
||
|
||
func selectStarredFeed() {
|
||
masterFeedViewController?.ensureSectionIsExpanded(0) {
|
||
self.selectFeed(IndexPath(row: 2, section: 0))
|
||
}
|
||
}
|
||
|
||
func selectArticle(_ article: Article?, automated: Bool = true) {
|
||
guard article != currentArticle else { return }
|
||
|
||
articleExtractor?.cancel()
|
||
articleExtractor = nil
|
||
isShowingExtractedArticle = false
|
||
articleViewController?.articleExtractorButtonState = .off
|
||
|
||
currentArticle = article
|
||
activityManager.reading(currentArticle)
|
||
|
||
if article == nil {
|
||
if rootSplitViewController.isCollapsed {
|
||
if masterNavigationController.children.last is ArticleViewController {
|
||
masterNavigationController.popViewController(animated: !automated)
|
||
}
|
||
} else {
|
||
articleViewController?.state = .noSelection
|
||
}
|
||
masterTimelineViewController?.updateArticleSelection(animate: !automated)
|
||
return
|
||
}
|
||
|
||
if articleViewController == nil {
|
||
let articleViewController = UIStoryboard.main.instantiateController(ofType: ArticleViewController.self)
|
||
articleViewController.coordinator = self
|
||
installArticleController(articleViewController, automated: automated)
|
||
}
|
||
|
||
if automated {
|
||
masterTimelineViewController?.updateArticleSelection(animate: false)
|
||
}
|
||
|
||
if article!.feed?.isArticleExtractorAlwaysOn ?? false {
|
||
startArticleExtractorForCurrentLink()
|
||
articleViewController?.state = .loading
|
||
} else {
|
||
articleViewController?.state = .article(article!)
|
||
}
|
||
|
||
markArticles(Set([article!]), statusKey: .read, flag: true)
|
||
|
||
}
|
||
|
||
func beginSearching() {
|
||
isSearching = true
|
||
searchArticleIds = Set(articles.map { $0.articleID })
|
||
timelineFetcher = nil
|
||
}
|
||
|
||
func endSearching() {
|
||
isSearching = false
|
||
lastSearchString = ""
|
||
lastSearchScope = nil
|
||
searchArticleIds = nil
|
||
|
||
if let ip = currentFeedIndexPath, let node = nodeFor(ip), let fetcher = node.representedObject as? ArticleFetcher {
|
||
timelineFetcher = fetcher
|
||
} else {
|
||
timelineFetcher = nil
|
||
}
|
||
|
||
selectArticle(nil)
|
||
}
|
||
|
||
func searchArticles(_ searchString: String, _ searchScope: SearchScope) {
|
||
|
||
guard isSearching else { return }
|
||
|
||
if searchString.count < 3 {
|
||
timelineFetcher = nil
|
||
return
|
||
}
|
||
|
||
if searchString != lastSearchString || searchScope != lastSearchScope {
|
||
|
||
switch searchScope {
|
||
case .global:
|
||
timelineFetcher = SmartFeed(delegate: SearchFeedDelegate(searchString: searchString))
|
||
case .timeline:
|
||
timelineFetcher = SmartFeed(delegate: SearchTimelineFeedDelegate(searchString: searchString, articleIDs: searchArticleIds!))
|
||
}
|
||
|
||
lastSearchString = searchString
|
||
lastSearchScope = searchScope
|
||
}
|
||
|
||
}
|
||
|
||
func selectPrevArticle() {
|
||
if let article = prevArticle {
|
||
selectArticle(article)
|
||
}
|
||
}
|
||
|
||
func selectNextArticle() {
|
||
if let article = nextArticle {
|
||
selectArticle(article)
|
||
}
|
||
}
|
||
|
||
func selectFirstUnread() {
|
||
if selectFirstUnreadArticleInTimeline() {
|
||
activityManager.selectingNextUnread()
|
||
}
|
||
}
|
||
|
||
func selectPrevUnread() {
|
||
|
||
// This should never happen, but I don't want to risk throwing us
|
||
// into an infinate loop searching for an unread that isn't there.
|
||
if appDelegate.unreadCount < 1 {
|
||
return
|
||
}
|
||
|
||
if selectPrevUnreadArticleInTimeline() {
|
||
return
|
||
}
|
||
|
||
selectPrevUnreadFeedFetcher()
|
||
selectPrevUnreadArticleInTimeline()
|
||
}
|
||
|
||
func selectNextUnread() {
|
||
|
||
// This should never happen, but I don't want to risk throwing us
|
||
// into an infinate loop searching for an unread that isn't there.
|
||
if appDelegate.unreadCount < 1 {
|
||
return
|
||
}
|
||
|
||
if selectNextUnreadArticleInTimeline() {
|
||
activityManager.selectingNextUnread()
|
||
return
|
||
}
|
||
|
||
selectNextUnreadFeedFetcher()
|
||
if selectNextUnreadArticleInTimeline() {
|
||
activityManager.selectingNextUnread()
|
||
}
|
||
|
||
}
|
||
|
||
func scrollOrGoToNextUnread() {
|
||
if articleViewController?.canScrollDown() ?? false {
|
||
articleViewController?.scrollPageDown()
|
||
} else {
|
||
selectNextUnread()
|
||
}
|
||
}
|
||
|
||
func markAllAsRead(_ articles: [Article]) {
|
||
guard let undoManager = undoManager, let markReadCommand = MarkStatusCommand(initialArticles: articles, markingRead: true, undoManager: undoManager) else {
|
||
return
|
||
}
|
||
runCommand(markReadCommand)
|
||
}
|
||
|
||
func markAllAsRead() {
|
||
let accounts = AccountManager.shared.activeAccounts
|
||
var articles = Set<Article>()
|
||
accounts.forEach { account in
|
||
articles.formUnion(account.fetchArticles(.unread))
|
||
}
|
||
markAllAsRead(Array(articles))
|
||
}
|
||
|
||
func markAllAsReadInTimeline() {
|
||
markAllAsRead(articles)
|
||
masterNavigationController.popViewController(animated: true)
|
||
}
|
||
|
||
func markAsReadOlderArticlesInTimeline() {
|
||
if let article = currentArticle {
|
||
markAsReadOlderArticlesInTimeline(article)
|
||
}
|
||
}
|
||
|
||
func markAsReadOlderArticlesInTimeline(_ article: Article) {
|
||
let articlesToMark = articles.filter { $0.logicalDatePublished < article.logicalDatePublished }
|
||
if articlesToMark.isEmpty {
|
||
return
|
||
}
|
||
markAllAsRead(articlesToMark)
|
||
}
|
||
|
||
func markAsReadForCurrentArticle() {
|
||
if let article = currentArticle {
|
||
markArticles(Set([article]), statusKey: .read, flag: true)
|
||
}
|
||
}
|
||
|
||
func markAsUnreadForCurrentArticle() {
|
||
if let article = currentArticle {
|
||
markArticles(Set([article]), statusKey: .read, flag: false)
|
||
}
|
||
}
|
||
|
||
func toggleReadForCurrentArticle() {
|
||
if let article = currentArticle {
|
||
markArticles(Set([article]), statusKey: .read, flag: !article.status.read)
|
||
}
|
||
}
|
||
|
||
func toggleRead(_ article: Article) {
|
||
guard let undoManager = undoManager,
|
||
let markReadCommand = MarkStatusCommand(initialArticles: [article], markingRead: !article.status.read, undoManager: undoManager) else {
|
||
return
|
||
}
|
||
runCommand(markReadCommand)
|
||
}
|
||
|
||
func toggleStarredForCurrentArticle() {
|
||
if let article = currentArticle {
|
||
markArticles(Set([article]), statusKey: .starred, flag: !article.status.starred)
|
||
}
|
||
}
|
||
|
||
func toggleStar(_ article: Article) {
|
||
guard let undoManager = undoManager,
|
||
let markReadCommand = MarkStatusCommand(initialArticles: [article], markingStarred: !article.status.starred, undoManager: undoManager) else {
|
||
return
|
||
}
|
||
runCommand(markReadCommand)
|
||
}
|
||
|
||
func discloseFeed(_ feed: Feed, completion: (() -> Void)? = nil) {
|
||
masterFeedViewController.discloseFeed(feed) {
|
||
completion?()
|
||
}
|
||
}
|
||
|
||
func showSettings() {
|
||
rootSplitViewController.present(style: .formSheet) {
|
||
SettingsView(viewModel: SettingsView.ViewModel()).environment(\.sceneCoordinator, self)
|
||
}
|
||
}
|
||
|
||
func showFeedInspector() {
|
||
guard let feed = timelineFetcher as? Feed else {
|
||
return
|
||
}
|
||
rootSplitViewController.present(style: .formSheet) {
|
||
FeedInspectorView(viewModel: FeedInspectorView.ViewModel(feed: feed))
|
||
}
|
||
}
|
||
|
||
func showAdd(_ type: AddControllerType, initialFeed: String? = nil, initialFeedName: String? = nil) {
|
||
selectFeed(nil)
|
||
|
||
let addViewController = UIStoryboard.add.instantiateInitialViewController() as! UINavigationController
|
||
|
||
let containerController = addViewController.topViewController as! AddContainerViewController
|
||
containerController.initialControllerType = type
|
||
containerController.initialFeed = initialFeed
|
||
containerController.initialFeedName = initialFeedName
|
||
|
||
addViewController.modalPresentationStyle = .formSheet
|
||
addViewController.preferredContentSize = AddContainerViewController.preferredContentSizeForFormSheetDisplay
|
||
masterFeedViewController.present(addViewController, animated: true)
|
||
}
|
||
|
||
func toggleArticleExtractor() {
|
||
|
||
guard let article = currentArticle else {
|
||
return
|
||
}
|
||
|
||
guard articleExtractor?.state != .processing else {
|
||
articleExtractor?.cancel()
|
||
articleExtractor = nil
|
||
isShowingExtractedArticle = false
|
||
articleViewController?.articleExtractorButtonState = .off
|
||
articleViewController?.state = .article(article)
|
||
return
|
||
}
|
||
|
||
guard !isShowingExtractedArticle else {
|
||
isShowingExtractedArticle = false
|
||
articleViewController?.articleExtractorButtonState = .off
|
||
articleViewController?.state = .article(article)
|
||
return
|
||
}
|
||
|
||
if let articleExtractor = articleExtractor, let extractedArticle = articleExtractor.article {
|
||
if currentArticle?.preferredLink == articleExtractor.articleLink {
|
||
isShowingExtractedArticle = true
|
||
articleViewController?.articleExtractorButtonState = .on
|
||
articleViewController?.state = .extracted(article, extractedArticle)
|
||
}
|
||
} else {
|
||
startArticleExtractorForCurrentLink()
|
||
}
|
||
|
||
}
|
||
|
||
func homePageURLForFeed(_ indexPath: IndexPath) -> URL? {
|
||
guard let node = nodeFor(indexPath),
|
||
let feed = node.representedObject as? Feed,
|
||
let homePageURL = feed.homePageURL,
|
||
let url = URL(string: homePageURL) else {
|
||
return nil
|
||
}
|
||
return url
|
||
}
|
||
|
||
func showBrowserForFeed(_ indexPath: IndexPath) {
|
||
if let url = homePageURLForFeed(indexPath) {
|
||
UIApplication.shared.open(url, options: [:])
|
||
}
|
||
}
|
||
|
||
func showBrowserForCurrentFeed() {
|
||
if let ip = currentFeedIndexPath, let url = homePageURLForFeed(ip) {
|
||
UIApplication.shared.open(url, options: [:])
|
||
}
|
||
}
|
||
|
||
func showBrowserForArticle(_ article: Article) {
|
||
guard let preferredLink = article.preferredLink, let url = URL(string: preferredLink) else {
|
||
return
|
||
}
|
||
UIApplication.shared.open(url, options: [:])
|
||
}
|
||
|
||
func showBrowserForCurrentArticle() {
|
||
guard let preferredLink = currentArticle?.preferredLink, let url = URL(string: preferredLink) else {
|
||
return
|
||
}
|
||
UIApplication.shared.open(url, options: [:])
|
||
}
|
||
|
||
func navigateToFeeds() {
|
||
masterFeedViewController?.focus()
|
||
selectArticle(nil)
|
||
}
|
||
|
||
func navigateToTimeline() {
|
||
if currentArticle == nil && articles.count > 0 {
|
||
selectArticle(articles[0])
|
||
}
|
||
masterTimelineViewController?.focus()
|
||
}
|
||
|
||
func navigateToDetail() {
|
||
articleViewController?.focus()
|
||
}
|
||
|
||
}
|
||
|
||
// MARK: UISplitViewControllerDelegate
|
||
|
||
extension SceneCoordinator: UISplitViewControllerDelegate {
|
||
|
||
func splitViewController(_ splitViewController: UISplitViewController, collapseSecondary secondaryViewController:UIViewController, onto primaryViewController:UIViewController) -> Bool {
|
||
return masterTimelineViewController == nil
|
||
}
|
||
|
||
}
|
||
|
||
// MARK: UINavigationControllerDelegate
|
||
|
||
extension SceneCoordinator: UINavigationControllerDelegate {
|
||
|
||
func navigationController(_ navigationController: UINavigationController, didShow viewController: UIViewController, animated: Bool) {
|
||
|
||
// If we are showing the Feeds and only the feeds start clearing stuff
|
||
if viewController === masterFeedViewController && !isThreePanelMode {
|
||
activityManager.invalidateCurrentActivities()
|
||
selectFeed(nil)
|
||
}
|
||
|
||
// If we are using a phone and navigate away from the detail, clear up the article resources (including activity)
|
||
if viewController === masterTimelineViewController && !isThreePanelMode && rootSplitViewController.isCollapsed {
|
||
selectArticle(nil)
|
||
}
|
||
|
||
}
|
||
|
||
}
|
||
|
||
// MARK: ArticleExtractorDelegate
|
||
|
||
extension SceneCoordinator: ArticleExtractorDelegate {
|
||
|
||
func articleExtractionDidFail(with: Error) {
|
||
articleViewController?.articleExtractorButtonState = .error
|
||
}
|
||
|
||
func articleExtractionDidComplete(extractedArticle: ExtractedArticle) {
|
||
if let article = currentArticle, articleExtractor?.state != .cancelled {
|
||
isShowingExtractedArticle = true
|
||
articleViewController?.state = .extracted(article, extractedArticle)
|
||
articleViewController?.articleExtractorButtonState = .on
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
// MARK: Private
|
||
|
||
private extension SceneCoordinator {
|
||
|
||
func updateUnreadCount() {
|
||
var count = 0
|
||
for article in articles {
|
||
if !article.status.read {
|
||
count += 1
|
||
}
|
||
}
|
||
unreadCount = count
|
||
}
|
||
|
||
func rebuildBackingStores(_ updateExpandedNodes: (() -> Void)? = nil) {
|
||
if !animatingChanges && !BatchUpdate.shared.isPerforming {
|
||
treeController.rebuild()
|
||
updateExpandedNodes?()
|
||
rebuildShadowTable()
|
||
masterFeedViewController.reloadFeeds()
|
||
}
|
||
}
|
||
|
||
func rebuildShadowTable() {
|
||
shadowTable = [[Node]]()
|
||
|
||
for i in 0..<treeController.rootNode.numberOfChildNodes {
|
||
|
||
var result = [Node]()
|
||
let sectionNode = treeController.rootNode.childAtIndex(i)!
|
||
|
||
if sectionNode.isExpanded {
|
||
for node in sectionNode.childNodes {
|
||
result.append(node)
|
||
if node.isExpanded {
|
||
for child in node.childNodes {
|
||
result.append(child)
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
shadowTable.append(result)
|
||
|
||
}
|
||
}
|
||
|
||
func nodeFor(_ indexPath: IndexPath) -> Node? {
|
||
guard indexPath.section < shadowTable.count && indexPath.row < shadowTable[indexPath.section].count else {
|
||
return nil
|
||
}
|
||
return shadowTable[indexPath.section][indexPath.row]
|
||
}
|
||
|
||
func indexPathFor(_ node: Node) -> IndexPath? {
|
||
for i in 0..<shadowTable.count {
|
||
if let row = shadowTable[i].firstIndex(of: node) {
|
||
return IndexPath(row: row, section: i)
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
func indexPathFor(_ object: AnyObject) -> IndexPath? {
|
||
guard let node = treeController.rootNode.descendantNodeRepresentingObject(object) else {
|
||
return nil
|
||
}
|
||
return indexPathFor(node)
|
||
}
|
||
|
||
func updateShowAvatars() {
|
||
|
||
if showFeedNames {
|
||
self.showAvatars = true
|
||
return
|
||
}
|
||
|
||
for article in articles {
|
||
if let authors = article.authors {
|
||
for author in authors {
|
||
if author.avatarURL != nil {
|
||
self.showAvatars = true
|
||
return
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
self.showAvatars = false
|
||
}
|
||
|
||
// MARK: Select Prev Unread
|
||
|
||
@discardableResult
|
||
func selectPrevUnreadArticleInTimeline() -> Bool {
|
||
let startingRow: Int = {
|
||
if let articleRow = currentArticleRow {
|
||
return articleRow
|
||
} else {
|
||
return articles.count - 1
|
||
}
|
||
}()
|
||
|
||
return selectPrevArticleInTimeline(startingRow: startingRow)
|
||
}
|
||
|
||
func selectPrevArticleInTimeline(startingRow: Int) -> Bool {
|
||
|
||
guard startingRow >= 0 else {
|
||
return false
|
||
}
|
||
|
||
for i in (0...startingRow).reversed() {
|
||
let article = articles[i]
|
||
if !article.status.read {
|
||
selectArticle(article)
|
||
return true
|
||
}
|
||
}
|
||
|
||
return false
|
||
|
||
}
|
||
|
||
func selectPrevUnreadFeedFetcher() {
|
||
|
||
let indexPath: IndexPath = {
|
||
if currentFeedIndexPath == nil {
|
||
return IndexPath(row: 0, section: 0)
|
||
} else {
|
||
return currentFeedIndexPath!
|
||
}
|
||
}()
|
||
|
||
// Increment or wrap around the IndexPath
|
||
let nextIndexPath: IndexPath = {
|
||
if indexPath.row - 1 < 0 {
|
||
if indexPath.section - 1 < 0 {
|
||
return IndexPath(row: shadowTable[shadowTable.count - 1].count - 1, section: shadowTable.count - 1)
|
||
} else {
|
||
return IndexPath(row: shadowTable[indexPath.section - 1].count - 1, section: indexPath.section - 1)
|
||
}
|
||
} else {
|
||
return IndexPath(row: indexPath.row - 1, section: indexPath.section)
|
||
}
|
||
}()
|
||
|
||
if selectPrevUnreadFeedFetcher(startingWith: nextIndexPath) {
|
||
return
|
||
}
|
||
let maxIndexPath = IndexPath(row: shadowTable[shadowTable.count - 1].count - 1, section: shadowTable.count - 1)
|
||
selectPrevUnreadFeedFetcher(startingWith: maxIndexPath)
|
||
|
||
}
|
||
|
||
@discardableResult
|
||
func selectPrevUnreadFeedFetcher(startingWith indexPath: IndexPath) -> Bool {
|
||
|
||
for i in (0...indexPath.section).reversed() {
|
||
|
||
let startingRow: Int = {
|
||
if indexPath.section == i {
|
||
return indexPath.row
|
||
} else {
|
||
return shadowTable[i].count - 1
|
||
}
|
||
}()
|
||
|
||
for j in (0...startingRow).reversed() {
|
||
|
||
let prevIndexPath = IndexPath(row: j, section: i)
|
||
guard let node = nodeFor(prevIndexPath), let unreadCountProvider = node.representedObject as? UnreadCountProvider else {
|
||
assertionFailure()
|
||
return true
|
||
}
|
||
|
||
if node.isExpanded {
|
||
continue
|
||
}
|
||
|
||
if unreadCountProvider.unreadCount > 0 {
|
||
selectFeed(prevIndexPath)
|
||
return true
|
||
}
|
||
|
||
}
|
||
|
||
}
|
||
|
||
return false
|
||
|
||
}
|
||
|
||
// MARK: Select Next Unread
|
||
|
||
@discardableResult
|
||
func selectFirstUnreadArticleInTimeline() -> Bool {
|
||
return selectNextArticleInTimeline(startingRow: 0)
|
||
}
|
||
|
||
@discardableResult
|
||
func selectNextUnreadArticleInTimeline() -> Bool {
|
||
let startingRow: Int = {
|
||
if let articleRow = currentArticleRow {
|
||
return articleRow + 1
|
||
} else {
|
||
return 0
|
||
}
|
||
}()
|
||
|
||
return selectNextArticleInTimeline(startingRow: startingRow)
|
||
}
|
||
|
||
func selectNextArticleInTimeline(startingRow: Int) -> Bool {
|
||
|
||
guard startingRow < articles.count else {
|
||
return false
|
||
}
|
||
|
||
for i in startingRow..<articles.count {
|
||
let article = articles[i]
|
||
if !article.status.read {
|
||
selectArticle(article)
|
||
return true
|
||
}
|
||
}
|
||
|
||
return false
|
||
|
||
}
|
||
|
||
func selectNextUnreadFeedFetcher() {
|
||
|
||
let indexPath: IndexPath = {
|
||
if currentFeedIndexPath == nil {
|
||
return IndexPath(row: -1, section: 0)
|
||
} else {
|
||
return currentFeedIndexPath!
|
||
}
|
||
}()
|
||
|
||
// Increment or wrap around the IndexPath
|
||
let nextIndexPath: IndexPath = {
|
||
if indexPath.row + 1 >= shadowTable[indexPath.section].count {
|
||
if indexPath.section + 1 >= shadowTable.count {
|
||
return IndexPath(row: 0, section: 0)
|
||
} else {
|
||
return IndexPath(row: 0, section: indexPath.section + 1)
|
||
}
|
||
} else {
|
||
return IndexPath(row: indexPath.row + 1, section: indexPath.section)
|
||
}
|
||
}()
|
||
|
||
if selectNextUnreadFeedFetcher(startingWith: nextIndexPath) {
|
||
return
|
||
}
|
||
selectNextUnreadFeedFetcher(startingWith: IndexPath(row: 0, section: 0))
|
||
|
||
}
|
||
|
||
@discardableResult
|
||
func selectNextUnreadFeedFetcher(startingWith indexPath: IndexPath) -> Bool {
|
||
|
||
for i in indexPath.section..<shadowTable.count {
|
||
|
||
let startingRow: Int = {
|
||
if indexPath.section == i {
|
||
return indexPath.row
|
||
} else {
|
||
return 0
|
||
}
|
||
}()
|
||
|
||
for j in startingRow..<shadowTable[indexPath.section].count {
|
||
|
||
let nextIndexPath = IndexPath(row: j, section: i)
|
||
guard let node = nodeFor(nextIndexPath), let unreadCountProvider = node.representedObject as? UnreadCountProvider else {
|
||
assertionFailure()
|
||
return true
|
||
}
|
||
|
||
if node.isExpanded {
|
||
continue
|
||
}
|
||
|
||
if unreadCountProvider.unreadCount > 0 {
|
||
selectFeed(nextIndexPath)
|
||
return true
|
||
}
|
||
|
||
}
|
||
|
||
}
|
||
|
||
return false
|
||
|
||
}
|
||
|
||
// MARK: Fetching Articles
|
||
|
||
func startArticleExtractorForCurrentLink() {
|
||
if let link = currentArticle?.preferredLink, let extractor = ArticleExtractor(link) {
|
||
extractor.delegate = self
|
||
extractor.process()
|
||
articleExtractor = extractor
|
||
articleViewController?.articleExtractorButtonState = .animated
|
||
}
|
||
}
|
||
|
||
func emptyTheTimeline() {
|
||
if !articles.isEmpty {
|
||
replaceArticles(with: Set<Article>(), animate: true)
|
||
}
|
||
}
|
||
|
||
func sortParametersDidChange() {
|
||
replaceArticles(with: Set(articles), animate: true)
|
||
}
|
||
|
||
func replaceArticles(with unsortedArticles: Set<Article>, animate: Bool) {
|
||
let sortedArticles = Array(unsortedArticles).sortedByDate(sortDirection, groupByFeed: groupByFeed)
|
||
|
||
if articles != sortedArticles {
|
||
|
||
articles = sortedArticles
|
||
updateShowAvatars()
|
||
updateUnreadCount()
|
||
|
||
masterTimelineViewController?.reloadArticles(animate: animate)
|
||
}
|
||
}
|
||
|
||
func queueFetchAndMergeArticles() {
|
||
fetchAndMergeArticlesQueue.add(self, #selector(fetchAndMergeArticles))
|
||
}
|
||
|
||
@objc func fetchAndMergeArticles() {
|
||
|
||
guard let timelineFetcher = timelineFetcher else {
|
||
return
|
||
}
|
||
|
||
fetchUnsortedArticlesAsync(for: [timelineFetcher]) { [weak self] (unsortedArticles) in
|
||
// Merge articles by articleID. For any unique articleID in current articles, add to unsortedArticles.
|
||
guard let strongSelf = self else {
|
||
return
|
||
}
|
||
let unsortedArticleIDs = unsortedArticles.articleIDs()
|
||
var updatedArticles = unsortedArticles
|
||
for article in strongSelf.articles {
|
||
if !unsortedArticleIDs.contains(article.articleID) {
|
||
updatedArticles.insert(article)
|
||
}
|
||
}
|
||
|
||
strongSelf.replaceArticles(with: updatedArticles, animate: true)
|
||
}
|
||
|
||
}
|
||
|
||
func cancelPendingAsyncFetches() {
|
||
fetchSerialNumber += 1
|
||
fetchRequestQueue.cancelAllRequests()
|
||
}
|
||
|
||
func fetchAndReplaceArticlesSync() {
|
||
// To be called when the user has made a change of selection in the sidebar.
|
||
// It blocks the main thread, so that there’s no async delay,
|
||
// so that the entire display refreshes at once.
|
||
// It’s a better user experience this way.
|
||
cancelPendingAsyncFetches()
|
||
guard let timelineFetcher = timelineFetcher else {
|
||
emptyTheTimeline()
|
||
return
|
||
}
|
||
let fetchedArticles = fetchUnsortedArticlesSync(for: [timelineFetcher])
|
||
replaceArticles(with: fetchedArticles, animate: false)
|
||
}
|
||
|
||
func fetchAndReplaceArticlesAsync(completion: @escaping () -> Void) {
|
||
// To be called when we need to do an entire fetch, but an async delay is okay.
|
||
// Example: we have the Today feed selected, and the calendar day just changed.
|
||
cancelPendingAsyncFetches()
|
||
guard let timelineFetcher = timelineFetcher else {
|
||
emptyTheTimeline()
|
||
return
|
||
}
|
||
fetchUnsortedArticlesAsync(for: [timelineFetcher]) { [weak self] (articles) in
|
||
self?.replaceArticles(with: articles, animate: true)
|
||
completion()
|
||
}
|
||
}
|
||
|
||
func fetchUnsortedArticlesSync(for representedObjects: [Any]) -> Set<Article> {
|
||
cancelPendingAsyncFetches()
|
||
let articleFetchers = representedObjects.compactMap{ $0 as? ArticleFetcher }
|
||
if articleFetchers.isEmpty {
|
||
return Set<Article>()
|
||
}
|
||
|
||
var fetchedArticles = Set<Article>()
|
||
for articleFetcher in articleFetchers {
|
||
fetchedArticles.formUnion(articleFetcher.fetchArticles())
|
||
}
|
||
return fetchedArticles
|
||
}
|
||
|
||
func fetchUnsortedArticlesAsync(for representedObjects: [Any], callback: @escaping ArticleSetBlock) {
|
||
// The callback will *not* be called if the fetch is no longer relevant — that is,
|
||
// if it’s been superseded by a newer fetch, or the timeline was emptied, etc., it won’t get called.
|
||
precondition(Thread.isMainThread)
|
||
cancelPendingAsyncFetches()
|
||
let fetchOperation = FetchRequestOperation(id: fetchSerialNumber, representedObjects: representedObjects) { [weak self] (articles, operation) in
|
||
precondition(Thread.isMainThread)
|
||
guard !operation.isCanceled, let strongSelf = self, operation.id == strongSelf.fetchSerialNumber else {
|
||
return
|
||
}
|
||
callback(articles)
|
||
}
|
||
fetchRequestQueue.add(fetchOperation)
|
||
}
|
||
|
||
func timelineFetcherContainsAnyPseudoFeed() -> Bool {
|
||
if timelineFetcher is PseudoFeed {
|
||
return true
|
||
}
|
||
return false
|
||
}
|
||
|
||
func timelineFetcherContainsAnyFolder() -> Bool {
|
||
if timelineFetcher is Folder {
|
||
return true
|
||
}
|
||
return false
|
||
}
|
||
|
||
func timelineFetcherContainsAnyFeed(_ feeds: Set<Feed>) -> Bool {
|
||
|
||
// Return true if there’s a match or if a folder contains (recursively) one of feeds
|
||
|
||
if let feed = timelineFetcher as? Feed {
|
||
for oneFeed in feeds {
|
||
if feed.feedID == oneFeed.feedID || feed.url == oneFeed.url {
|
||
return true
|
||
}
|
||
}
|
||
} else if let folder = timelineFetcher as? Folder {
|
||
for oneFeed in feeds {
|
||
if folder.hasFeed(with: oneFeed.feedID) || folder.hasFeed(withURL: oneFeed.url) {
|
||
return true
|
||
}
|
||
}
|
||
}
|
||
|
||
return false
|
||
|
||
}
|
||
|
||
// MARK: Double Split
|
||
|
||
func installTimelineControllerIfNecessary(animated: Bool) {
|
||
if navControllerForTimeline().viewControllers.filter({ $0 is MasterTimelineViewController }).count < 1 {
|
||
masterTimelineViewController = UIStoryboard.main.instantiateController(ofType: MasterTimelineViewController.self)
|
||
masterTimelineViewController!.coordinator = self
|
||
navControllerForTimeline().pushViewController(masterTimelineViewController!, animated: animated)
|
||
}
|
||
}
|
||
|
||
func installArticleController(_ articleController: UIViewController, automated: Bool) {
|
||
|
||
if let subSplit = subSplitViewController {
|
||
let controller = addNavControllerIfNecessary(articleController, showButton: false)
|
||
subSplit.showDetailViewController(controller, sender: self)
|
||
} else if rootSplitViewController.isCollapsed {
|
||
let controller = addNavControllerIfNecessary(articleController, showButton: false)
|
||
masterNavigationController.pushViewController(controller, animated: !automated)
|
||
} else {
|
||
let controller = addNavControllerIfNecessary(articleController, showButton: true)
|
||
rootSplitViewController.showDetailViewController(controller, sender: self)
|
||
}
|
||
|
||
}
|
||
|
||
func addNavControllerIfNecessary(_ controller: UIViewController, showButton: Bool) -> UIViewController {
|
||
|
||
if rootSplitViewController.isCollapsed {
|
||
|
||
return controller
|
||
|
||
} else {
|
||
|
||
let navController = ThemedNavigationController.template(rootViewController: controller)
|
||
navController.isToolbarHidden = false
|
||
|
||
if showButton {
|
||
controller.navigationItem.leftBarButtonItem = rootSplitViewController.displayModeButtonItem
|
||
controller.navigationItem.leftItemsSupplementBackButton = true
|
||
} else {
|
||
controller.navigationItem.leftBarButtonItem = nil
|
||
controller.navigationItem.leftItemsSupplementBackButton = false
|
||
}
|
||
|
||
return navController
|
||
|
||
}
|
||
|
||
}
|
||
|
||
func configureDoubleSplit() {
|
||
rootSplitViewController.preferredPrimaryColumnWidthFraction = 0.30
|
||
|
||
let subSplit = UISplitViewController.template()
|
||
subSplit.preferredDisplayMode = .allVisible
|
||
subSplit.preferredPrimaryColumnWidthFraction = 0.4285
|
||
|
||
rootSplitViewController.showDetailViewController(subSplit, sender: self)
|
||
}
|
||
|
||
func navControllerForTimeline() -> UINavigationController {
|
||
if let subSplit = subSplitViewController {
|
||
return subSplit.viewControllers.first as! UINavigationController
|
||
} else {
|
||
return masterNavigationController
|
||
}
|
||
}
|
||
|
||
@discardableResult
|
||
func transitionToThreePanelMode() -> UIViewController {
|
||
|
||
defer {
|
||
masterNavigationController.viewControllers = [masterFeedViewController]
|
||
}
|
||
|
||
let controller: UIViewController = {
|
||
if let result = articleViewController {
|
||
return result
|
||
} else {
|
||
let articleViewController = UIStoryboard.main.instantiateController(ofType: ArticleViewController.self)
|
||
articleViewController.coordinator = self
|
||
return articleViewController
|
||
}
|
||
}()
|
||
|
||
configureDoubleSplit()
|
||
installTimelineControllerIfNecessary(animated: false)
|
||
masterTimelineViewController?.navigationItem.leftBarButtonItem = rootSplitViewController.displayModeButtonItem
|
||
masterTimelineViewController?.navigationItem.leftItemsSupplementBackButton = true
|
||
|
||
// Create the new sub split controller and add the timeline in the primary position
|
||
let masterTimelineNavController = subSplitViewController!.viewControllers.first as! UINavigationController
|
||
masterTimelineNavController.viewControllers = [masterTimelineViewController!]
|
||
|
||
// Put the detail or no selection controller in the secondary (or detail) position of the sub split
|
||
let navController = addNavControllerIfNecessary(controller, showButton: false)
|
||
subSplitViewController!.showDetailViewController(navController, sender: self)
|
||
|
||
masterFeedViewController.restoreSelectionIfNecessary(adjustScroll: true)
|
||
masterTimelineViewController!.restoreSelectionIfNecessary()
|
||
|
||
// We made sure this was there above when we called configureDoubleSplit
|
||
return subSplitViewController!
|
||
|
||
}
|
||
|
||
func transitionFromThreePanelMode() {
|
||
|
||
rootSplitViewController.preferredPrimaryColumnWidthFraction = UISplitViewController.automaticDimension
|
||
|
||
if let subSplit = rootSplitViewController.viewControllers.last as? UISplitViewController {
|
||
|
||
// Push a new timeline on to the master navigation controller. For some reason recycling the timeline can freak
|
||
// the system out and throw it into an infinite loop.
|
||
if currentFeedIndexPath != nil {
|
||
masterTimelineViewController = UIStoryboard.main.instantiateController(ofType: MasterTimelineViewController.self)
|
||
masterTimelineViewController!.coordinator = self
|
||
masterNavigationController.pushViewController(masterTimelineViewController!, animated: false)
|
||
}
|
||
|
||
// Pull the detail or no selection controller out of the sub split second position and move it to the root split controller
|
||
// secondary (detail) position.
|
||
if let detailNav = subSplit.viewControllers.last as? UINavigationController, let topController = detailNav.topViewController {
|
||
let newNav = addNavControllerIfNecessary(topController, showButton: true)
|
||
rootSplitViewController.showDetailViewController(newNav, sender: self)
|
||
}
|
||
|
||
}
|
||
|
||
}
|
||
|
||
// MARK: NSUserActivity
|
||
|
||
func updateSelectingActivity(with node: Node) {
|
||
switch true {
|
||
case node.representedObject === SmartFeedsController.shared.todayFeed:
|
||
activityManager.selectingToday()
|
||
case node.representedObject === SmartFeedsController.shared.unreadFeed:
|
||
activityManager.selectingAllUnread()
|
||
case node.representedObject === SmartFeedsController.shared.starredFeed:
|
||
activityManager.selectingStarred()
|
||
case node.representedObject is Folder:
|
||
activityManager.selectingFolder(node.representedObject as! Folder)
|
||
case node.representedObject is Feed:
|
||
activityManager.selectingFeed(node.representedObject as! Feed)
|
||
default:
|
||
break
|
||
}
|
||
}
|
||
|
||
func handleSelectToday() {
|
||
if let indexPath = indexPathFor(SmartFeedsController.shared.todayFeed) {
|
||
selectFeed(indexPath)
|
||
}
|
||
}
|
||
|
||
func handleSelectAllUnread() {
|
||
if let indexPath = indexPathFor(SmartFeedsController.shared.unreadFeed) {
|
||
selectFeed(indexPath)
|
||
}
|
||
}
|
||
|
||
func handleSelectStarred() {
|
||
if let indexPath = indexPathFor(SmartFeedsController.shared.starredFeed) {
|
||
selectFeed(indexPath)
|
||
}
|
||
}
|
||
|
||
func handleSelectFolder(_ activity: NSUserActivity) {
|
||
guard let accountNode = findAccountNode(for: activity), let folderNode = findFolderNode(for: activity, beginningAt: accountNode) else {
|
||
return
|
||
}
|
||
if let indexPath = indexPathFor(folderNode) {
|
||
selectFeed(indexPath)
|
||
}
|
||
}
|
||
|
||
func handleSelectFeed(_ activity: NSUserActivity) {
|
||
guard let accountNode = findAccountNode(for: activity), let feedNode = findFeedNode(for: activity, beginningAt: accountNode) else {
|
||
return
|
||
}
|
||
if let feed = feedNode.representedObject as? Feed {
|
||
discloseFeed(feed)
|
||
}
|
||
}
|
||
|
||
func handleReadArticle(_ activity: NSUserActivity) {
|
||
guard let accountNode = findAccountNode(for: activity), let feedNode = findFeedNode(for: activity, beginningAt: accountNode) else {
|
||
return
|
||
}
|
||
|
||
discloseFeed(feedNode.representedObject as! Feed) {
|
||
|
||
guard let articleID = activity.userInfo?[ActivityID.articleID.rawValue] as? String else { return }
|
||
if let article = self.articles.first(where: { $0.articleID == articleID }) {
|
||
self.selectArticle(article)
|
||
}
|
||
|
||
}
|
||
}
|
||
|
||
func findAccountNode(for activity: NSUserActivity) -> Node? {
|
||
guard let accountID = activity.userInfo?[ActivityID.accountID.rawValue] as? String else {
|
||
return nil
|
||
}
|
||
|
||
if let node = treeController.rootNode.descendantNode(where: { ($0.representedObject as? Account)?.accountID == accountID }) {
|
||
return node
|
||
}
|
||
|
||
guard let accountName = activity.userInfo?[ActivityID.accountName.rawValue] as? String else {
|
||
return nil
|
||
}
|
||
|
||
if let node = treeController.rootNode.descendantNode(where: { ($0.representedObject as? Account)?.name == accountName }) {
|
||
return node
|
||
}
|
||
|
||
return nil
|
||
}
|
||
|
||
func findFolderNode(for activity: NSUserActivity, beginningAt startingNode: Node) -> Node? {
|
||
guard let folderName = activity.userInfo?[ActivityID.folderName.rawValue] as? String else {
|
||
return nil
|
||
}
|
||
if let node = startingNode.descendantNode(where: { ($0.representedObject as? Folder)?.nameForDisplay == folderName }) {
|
||
return node
|
||
}
|
||
return nil
|
||
}
|
||
|
||
func findFeedNode(for activity: NSUserActivity, beginningAt startingNode: Node) -> Node? {
|
||
guard let feedID = activity.userInfo?[ActivityID.feedID.rawValue] as? String else {
|
||
return nil
|
||
}
|
||
if let node = startingNode.descendantNode(where: { ($0.representedObject as? Feed)?.feedID == feedID }) {
|
||
return node
|
||
}
|
||
return nil
|
||
}
|
||
|
||
}
|
||
|
||
// MARK: SwiftUI
|
||
|
||
struct SceneCoordinatorHolder {
|
||
weak var value: SceneCoordinator?
|
||
}
|
||
|
||
struct SceneCoordinatorKey: EnvironmentKey {
|
||
static var defaultValue: SceneCoordinatorHolder { return SceneCoordinatorHolder(value: nil ) }
|
||
}
|
||
|
||
extension EnvironmentValues {
|
||
var sceneCoordinator: SceneCoordinator? {
|
||
get { return self[SceneCoordinatorKey.self].value }
|
||
set { self[SceneCoordinatorKey.self].value = newValue }
|
||
}
|
||
}
|