mirror of
https://github.com/Ranchero-Software/NetNewsWire.git
synced 2024-12-24 16:51:19 +01:00
490 lines
13 KiB
Swift
490 lines
13 KiB
Swift
//
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// TimelineViewController.swift
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// Evergreen
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//
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// Created by Brent Simmons on 7/26/15.
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// Copyright © 2015 Ranchero Software, LLC. All rights reserved.
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//
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import Foundation
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import RSCore
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import RSTextDrawing
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import Data
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import Account
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class TimelineViewController: NSViewController, KeyboardDelegate, UndoableCommandRunner {
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@IBOutlet var tableView: TimelineTableView!
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var selectedArticles: [Article] {
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get {
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return Array(articles.articlesForIndexes(tableView.selectedRowIndexes))
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}
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}
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var undoableCommands = [UndoableCommand]()
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private var cellAppearance: TimelineCellAppearance!
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private var showFeedNames = false
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private var didRegisterForNotifications = false
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private let timelineFontSizeKVOKey = "values.{AppDefaults.Key.timelineFontSize}"
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private var articles = ArticleArray() {
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didSet {
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if articles != oldValue {
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clearUndoableCommands()
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tableView.reloadData()
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}
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}
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}
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private var fontSize: FontSize = AppDefaults.shared.timelineFontSize {
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didSet {
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fontSizeDidChange()
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}
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}
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private var representedObjects: [AnyObject]? {
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didSet {
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if !representedObjectArraysAreEqual(oldValue, representedObjects) {
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postTimelineSelectionDidChangeNotification(nil)
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fetchArticles()
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if articles.count > 0 {
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tableView.scrollRowToVisible(0)
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}
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}
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}
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}
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private var oneSelectedArticle: Article? {
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get {
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return selectedArticles.count == 1 ? selectedArticles.first : nil
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}
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}
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override func viewDidLoad() {
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cellAppearance = TimelineCellAppearance(theme: currentTheme, fontSize: fontSize)
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tableView.rowHeight = calculateRowHeight()
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tableView.target = self
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tableView.doubleAction = #selector(openArticleInBrowser(_:))
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tableView.keyboardDelegate = self
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tableView.setDraggingSourceOperationMask(.copy, forLocal: false)
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if !didRegisterForNotifications {
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NotificationCenter.default.addObserver(self, selector: #selector(sidebarSelectionDidChange(_:)), name: .SidebarSelectionDidChange, object: nil)
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NotificationCenter.default.addObserver(self, selector: #selector(statusesDidChange(_:)), name: .StatusesDidChange, object: nil)
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NSUserDefaultsController.shared.addObserver(self, forKeyPath: timelineFontSizeKVOKey, options: NSKeyValueObservingOptions(rawValue: 0), context: nil)
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didRegisterForNotifications = true
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}
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}
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// MARK: KVO
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override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
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if let keyPath = keyPath {
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switch (keyPath) {
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case timelineFontSizeKVOKey:
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fontSizeInDefaultsDidChange()
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return
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default:
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break
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}
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}
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super.observeValue(forKeyPath: keyPath, of: object, change: change, context: context)
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}
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// MARK: Appearance Change
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private func fontSizeDidChange() {
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cellAppearance = TimelineCellAppearance(theme: currentTheme, fontSize: fontSize)
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let updatedRowHeight = calculateRowHeight()
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if tableView.rowHeight != updatedRowHeight {
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tableView.rowHeight = updatedRowHeight
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tableView.reloadData()
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}
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}
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// MARK: - API
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func markAllAsRead() {
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guard let undoManager = undoManager, let markReadCommand = MarkReadOrUnreadCommand(initialArticles: articles, markingRead: true, undoManager: undoManager) else {
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return
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}
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runCommand(markReadCommand)
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}
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func canMarkAllAsRead() -> Bool {
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return articles.canMarkAllAsRead()
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}
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func canMarkSelectedArticlesAsRead() -> Bool {
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return selectedArticles.canMarkAllAsRead()
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}
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// MARK: - Actions
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@objc func openArticleInBrowser(_ sender: AnyObject) {
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if let link = oneSelectedArticle?.preferredLink {
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Browser.open(link)
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}
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}
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@IBAction func toggleStatusOfSelectedArticles(_ sender: AnyObject) {
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guard !selectedArticles.isEmpty else {
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return
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}
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let articles = selectedArticles
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let status = articles.first!.status
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let markAsRead = !status.read
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if markAsRead {
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markSelectedArticlesAsRead(sender)
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}
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else {
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markSelectedArticlesAsUnread(sender)
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}
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}
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@IBAction func markSelectedArticlesAsRead(_ sender: AnyObject?) {
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guard let undoManager = undoManager, let markReadCommand = MarkReadOrUnreadCommand(initialArticles: selectedArticles, markingRead: true, undoManager: undoManager) else {
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return
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}
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runCommand(markReadCommand)
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}
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@IBAction func markSelectedArticlesAsUnread(_ sender: AnyObject) {
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guard let undoManager = undoManager, let markUnreadCommand = MarkReadOrUnreadCommand(initialArticles: selectedArticles, markingRead: false, undoManager: undoManager) else {
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return
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}
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runCommand(markUnreadCommand)
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}
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// MARK: - Navigation
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func goToNextUnread() {
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guard let ix = indexOfNextUnreadArticle() else {
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return
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}
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tableView.rs_selectRow(ix)
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tableView.scrollTo(row: ix)
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}
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func canGoToNextUnread() -> Bool {
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guard let _ = indexOfNextUnreadArticle() else {
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return false
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}
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return true
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}
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func indexOfNextUnreadArticle() -> Int? {
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return articles.rowOfNextUnreadArticle(tableView.selectedRow)
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}
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// MARK: - Notifications
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@objc func sidebarSelectionDidChange(_ note: Notification) {
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let sidebarView = note.appInfo?.view
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if sidebarView?.window === tableView.window {
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representedObjects = note.appInfo?.objects
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}
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}
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@objc func statusesDidChange(_ note: Notification) {
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guard let articles = note.userInfo?[Account.UserInfoKey.articles] as? Set<Article> else {
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return
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}
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reloadCellsForArticleIDs(articles.articleIDs())
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}
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func fontSizeInDefaultsDidChange() {
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TimelineCellData.emptyCache()
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RSSingleLineRenderer.emptyCache()
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RSMultiLineRenderer.emptyCache()
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let updatedFontSize = AppDefaults.shared.timelineFontSize
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if updatedFontSize != self.fontSize {
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self.fontSize = updatedFontSize
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}
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}
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// MARK: - KeyboardDelegate
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func handleKeydownEvent(_ event: NSEvent, sender: AnyObject) -> Bool {
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guard !event.rs_keyIsModified() else {
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return false
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}
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guard let ch = event.rs_unmodifiedCharacterString() else {
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return false
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}
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let hasSelectedArticle = hasAtLeastOneSelectedArticle
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var keyHandled = false
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var shouldOpenInBrowser = false
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switch(ch) {
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case "\n":
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shouldOpenInBrowser = true
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keyHandled = true
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case "\r":
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shouldOpenInBrowser = true
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keyHandled = true
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case "r":
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markSelectedArticlesAsRead(sender)
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keyHandled = true
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case "u":
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markSelectedArticlesAsUnread(sender)
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keyHandled = true
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default:
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keyHandled = false
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}
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if !keyHandled {
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let chUnichar = event.rs_unmodifiedCharacter()
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switch(chUnichar) {
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case keypadEnter:
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shouldOpenInBrowser = true
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keyHandled = true
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default:
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keyHandled = false
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}
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}
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if shouldOpenInBrowser && hasSelectedArticle {
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openArticleInBrowser(self)
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}
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return keyHandled
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}
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// MARK: - Reloading Data
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private func cellForRowView(_ rowView: NSView) -> NSView? {
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for oneView in rowView.subviews where oneView is TimelineTableCellView {
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return oneView
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}
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return nil
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}
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private func reloadCellsForArticles(_ articles: [Article]) {
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reloadCellsForArticleIDs(Set(articles.articleIDs()))
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}
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private func reloadCellsForArticleIDs(_ articleIDs: Set<String>) {
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let indexes = articles.indexesForArticleIDs(articleIDs)
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tableView.reloadData(forRowIndexes: indexes, columnIndexes: NSIndexSet(index: 0) as IndexSet)
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}
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// MARK: - Cell Configuring
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private func calculateRowHeight() -> CGFloat {
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let longTitle = "But I must explain to you how all this mistaken idea of denouncing pleasure and praising pain was born and I will give you a complete account of the system, and expound the actual teachings of the great explorer of the truth, the master-builder of human happiness. No one rejects, dislikes, or avoids pleasure itself, because it is pleasure, but because those who do not know how to pursue pleasure rationally encounter consequences that are extremely painful. Nor again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but because occasionally circumstances occur in which toil and pain can procure him some great pleasure. To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it? But who has any right to find fault with a man who chooses to enjoy a pleasure that has no annoying consequences, or one who avoids a pain that produces no resultant pleasure?"
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let prototypeID = "prototype"
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let status = ArticleStatus(articleID: prototypeID, read: false, starred: false, userDeleted: false, dateArrived: Date())
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let prototypeArticle = Article(accountID: prototypeID, articleID: prototypeID, feedID: prototypeID, uniqueID: prototypeID, title: longTitle, contentHTML: nil, contentText: nil, url: nil, externalURL: nil, summary: nil, imageURL: nil, bannerImageURL: nil, datePublished: nil, dateModified: nil, authors: nil, tags: nil, attachments: nil, status: status)
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let prototypeCellData = TimelineCellData(article: prototypeArticle, appearance: cellAppearance, showFeedName: false)
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let height = timelineCellHeight(100, cellData: prototypeCellData, appearance: cellAppearance)
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return height
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}
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}
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// MARK: - NSTableViewDataSource
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extension TimelineViewController: NSTableViewDataSource {
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func numberOfRows(in tableView: NSTableView) -> Int {
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return articles.count
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}
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func tableView(_ tableView: NSTableView, objectValueFor tableColumn: NSTableColumn?, row: Int) -> Any? {
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return articles.articleAtRow(row) ?? nil
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}
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func tableView(_ tableView: NSTableView, pasteboardWriterForRow row: Int) -> NSPasteboardWriting? {
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guard let article = articles.articleAtRow(row) else {
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return nil
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}
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return ArticlePasteboardWriter(article: article)
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}
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}
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// MARK: - NSTableViewDelegate
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extension TimelineViewController: NSTableViewDelegate {
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func tableView(_ tableView: NSTableView, rowViewForRow row: Int) -> NSTableRowView? {
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let rowView: TimelineTableRowView = tableView.makeView(withIdentifier: NSUserInterfaceItemIdentifier(rawValue: "timelineRow"), owner: self) as! TimelineTableRowView
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rowView.cellAppearance = cellAppearance
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return rowView
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}
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func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int) -> NSView? {
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let cell: TimelineTableCellView = tableView.makeView(withIdentifier: NSUserInterfaceItemIdentifier(rawValue: "timelineCell"), owner: self) as! TimelineTableCellView
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cell.cellAppearance = cellAppearance
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if let article = articles.articleAtRow(row) {
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configureTimelineCell(cell, article: article)
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}
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else {
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makeTimelineCellEmpty(cell)
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}
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return cell
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}
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func tableViewSelectionDidChange(_ notification: Notification) {
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tableView.redrawGrid()
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let selectedRow = tableView.selectedRow
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if selectedRow < 0 || selectedRow == NSNotFound || tableView.numberOfSelectedRows != 1 {
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postTimelineSelectionDidChangeNotification(nil)
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return
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}
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if let selectedArticle = articles.articleAtRow(selectedRow) {
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if (!selectedArticle.status.read) {
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markArticles(Set([selectedArticle]), statusKey: .read, flag: true)
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}
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postTimelineSelectionDidChangeNotification(selectedArticle)
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}
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else {
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postTimelineSelectionDidChangeNotification(nil)
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}
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}
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private func postTimelineSelectionDidChangeNotification(_ selectedArticle: Article?) {
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let appInfo = AppInfo()
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if let article = selectedArticle {
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appInfo.article = article
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}
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appInfo.view = tableView
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NotificationCenter.default.post(name: .TimelineSelectionDidChange, object: self, userInfo: appInfo.userInfo)
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}
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private func configureTimelineCell(_ cell: TimelineTableCellView, article: Article) {
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cell.objectValue = article
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cell.cellData = TimelineCellData(article: article, appearance: cellAppearance, showFeedName: showFeedNames)
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}
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private func makeTimelineCellEmpty(_ cell: TimelineTableCellView) {
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cell.objectValue = nil
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cell.cellData = emptyCellData
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}
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}
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// MARK: - Private
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private extension TimelineViewController {
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var hasAtLeastOneSelectedArticle: Bool {
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get {
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return tableView.selectedRow != -1
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}
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}
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func emptyTheTimeline() {
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if !articles.isEmpty {
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articles = [Article]()
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}
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}
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// MARK: Fetching Articles
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func fetchArticles() {
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guard let representedObjects = representedObjects else {
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emptyTheTimeline()
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return
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}
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var fetchedArticles = Set<Article>()
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for object in representedObjects {
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if let feed = object as? Feed {
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fetchedArticles.formUnion(feed.fetchArticles())
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}
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else if let folder = object as? Folder {
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fetchedArticles.formUnion(folder.fetchArticles())
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}
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}
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let sortedArticles = Array(fetchedArticles).sortedByDate()
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if articles != sortedArticles {
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articles = sortedArticles
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}
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}
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func representedObjectArraysAreEqual(_ objects1: [AnyObject]?, _ objects2: [AnyObject]?) -> Bool {
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if objects1 == nil && objects2 == nil {
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return true
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}
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guard let objects1 = objects1, let objects2 = objects2 else {
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return false
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}
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if objects1.count != objects2.count {
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return false
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}
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var ix = 0
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for oneObject in objects1 {
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if oneObject !== objects2[ix] {
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return false
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}
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ix += 1
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}
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return true
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}
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}
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