NetNewsWire/Shared/SmartFeeds/UnreadFeed.swift

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//
// UnreadFeed.swift
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// NetNewsWire
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//
// Created by Brent Simmons on 11/19/17.
// Copyright © 2017 Ranchero Software. All rights reserved.
//
#if os(macOS)
import AppKit
#else
import Foundation
#endif
import RSCore
import Account
import Articles
import ArticlesDatabase
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// This just shows the global unread count, which appDelegate already has. Easy.
final class UnreadFeed: PseudoFeed {
public var defaultReadFilterType: ReadFilterType {
return .alwaysRead
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}
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var feedID: FeedIdentifier? {
return FeedIdentifier.smartFeed(String(describing: UnreadFeed.self))
}
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let nameForDisplay = NSLocalizedString("All Unread", comment: "All Unread pseudo-feed title")
let fetchType = FetchType.unread(nil)
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var unreadCount = 0 {
didSet {
if unreadCount != oldValue {
postUnreadCountDidChangeNotification()
}
}
}
var smallIcon: IconImage? {
return AppAssets.unreadFeedImage
}
#if os(macOS)
var pasteboardWriter: NSPasteboardWriting {
return SmartFeedPasteboardWriter(smartFeed: self)
}
#endif
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init() {
self.unreadCount = appDelegate.unreadCount
NotificationCenter.default.addObserver(self, selector: #selector(unreadCountDidChange(_:)), name: .UnreadCountDidChange, object: appDelegate)
}
@objc func unreadCountDidChange(_ note: Notification) {
assert(note.object is AppDelegate)
unreadCount = appDelegate.unreadCount
}
}
extension UnreadFeed: ArticleFetcher {
func fetchArticles() throws -> Set<Article> {
return try fetchUnreadArticles()
}
func fetchArticlesAsync(_ completion: @escaping ArticleSetResultBlock) {
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fetchUnreadArticlesAsync(completion)
}
func fetchUnreadArticles() throws -> Set<Article> {
return try AccountManager.shared.fetchArticles(fetchType)
}
func fetchUnreadArticlesAsync(_ completion: @escaping ArticleSetResultBlock) {
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AccountManager.shared.fetchArticlesAsync(fetchType, completion)
}
}