99 lines
2.2 KiB
Swift
99 lines
2.2 KiB
Swift
//
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// SmartFeed.swift
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// NetNewsWire
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//
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// Created by Brent Simmons on 11/19/17.
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// Copyright © 2017 Ranchero Software. All rights reserved.
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//
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import Foundation
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import RSCore
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import Articles
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import Account
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final class SmartFeed: PseudoFeed {
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var nameForDisplay: String {
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return delegate.nameForDisplay
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}
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var unreadCount = 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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var smallIcon: RSImage? {
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return delegate.smallIcon
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}
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#if os(macOS)
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var pasteboardWriter: NSPasteboardWriting {
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return SmartFeedPasteboardWriter(smartFeed: self)
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}
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#endif
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private let delegate: SmartFeedDelegate
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private var unreadCounts = [String: Int]()
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init(delegate: SmartFeedDelegate) {
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self.delegate = delegate
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NotificationCenter.default.addObserver(self, selector: #selector(unreadCountDidChange(_:)), name: .UnreadCountDidChange, object: nil)
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queueFetchUnreadCounts() // Fetch unread count at startup
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}
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@objc func unreadCountDidChange(_ note: Notification) {
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if note.object is AppDelegate {
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queueFetchUnreadCounts()
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}
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}
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@objc func fetchUnreadCounts() {
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AccountManager.shared.activeAccounts.forEach { self.fetchUnreadCount(for: $0) }
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}
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}
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extension SmartFeed: ArticleFetcher {
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func fetchArticles() -> Set<Article> {
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return delegate.fetchArticles()
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}
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func fetchArticlesAsync(_ callback: @escaping ArticleSetBlock) {
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delegate.fetchArticlesAsync(callback)
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}
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func fetchUnreadArticles() -> Set<Article> {
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return delegate.fetchUnreadArticles()
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}
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func fetchUnreadArticlesAsync(_ callback: @escaping ArticleSetBlock) {
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delegate.fetchUnreadArticlesAsync(callback)
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}
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}
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private extension SmartFeed {
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func queueFetchUnreadCounts() {
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CoalescingQueue.standard.add(self, #selector(fetchUnreadCounts))
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}
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func fetchUnreadCount(for account: Account) {
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delegate.fetchUnreadCount(for: account) { (accountUnreadCount) in
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self.unreadCounts[account.accountID] = accountUnreadCount
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self.updateUnreadCount()
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}
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}
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func updateUnreadCount() {
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unreadCount = AccountManager.shared.activeAccounts.reduce(0) { (result, account) -> Int in
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if let oneUnreadCount = unreadCounts[account.accountID] {
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return result + oneUnreadCount
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}
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return result
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}
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}
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}
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