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Create PseudoFeed.swift. This will be used for Today, All Unread, Starred, etc.

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This commit is contained in:
Brent Simmons 2017-11-19 11:43:31 -08:00
parent 911e992b76
commit 93b8da15dc
2 changed files with 96 additions and 0 deletions
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4
Evergreen.xcodeproj/project.pbxproj
View File

@ -13,6 +13,7 @@
842E45E51ED8C6B7000A8B52 /* MainWindowSplitView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 842E45E41ED8C6B7000A8B52 /* MainWindowSplitView.swift */; };
842E45E71ED8C747000A8B52 /* DB5.plist in Resources */ = {isa = PBXBuildFile; fileRef = 842E45E61ED8C747000A8B52 /* DB5.plist */; };
84513F901FAA63950023A1A9 /* FeedListControlsView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84513F8F1FAA63950023A1A9 /* FeedListControlsView.swift */; };
845B14921FC2028A0013CF92 /* PseudoFeed.swift in Sources */ = {isa = PBXBuildFile; fileRef = 845B14911FC2028A0013CF92 /* PseudoFeed.swift */; };
845F52ED1FB2B9FC00C10BF0 /* FeedPasteboardWriter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 845F52EC1FB2B9FC00C10BF0 /* FeedPasteboardWriter.swift */; };
846E773D1F6EF67A00A165E2 /* Account.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 846E773A1F6EF5D700A165E2 /* Account.framework */; };
846E773E1F6EF67A00A165E2 /* Account.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 846E773A1F6EF5D700A165E2 /* Account.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
@ -396,6 +397,7 @@
842E45E41ED8C6B7000A8B52 /* MainWindowSplitView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = MainWindowSplitView.swift; sourceTree = "<group>"; };
842E45E61ED8C747000A8B52 /* DB5.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = DB5.plist; path = Evergreen/Resources/DB5.plist; sourceTree = "<group>"; };
84513F8F1FAA63950023A1A9 /* FeedListControlsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FeedListControlsView.swift; sourceTree = "<group>"; };
845B14911FC2028A0013CF92 /* PseudoFeed.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PseudoFeed.swift; sourceTree = "<group>"; };
845F52EC1FB2B9FC00C10BF0 /* FeedPasteboardWriter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FeedPasteboardWriter.swift; sourceTree = "<group>"; };
846E77161F6EF5D000A165E2 /* Database.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = Database.xcodeproj; path = Frameworks/Database/Database.xcodeproj; sourceTree = "<group>"; };
846E77301F6EF5D600A165E2 /* Account.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = Account.xcodeproj; path = Frameworks/Account/Account.xcodeproj; sourceTree = "<group>"; };
@ -587,6 +589,7 @@
849A97561ED9EB0D007D329B /* Data */ = {
isa = PBXGroup;
children = (
845B14911FC2028A0013CF92 /* PseudoFeed.swift */,
849A97581ED9EB0D007D329B /* ArticleUtilities.swift */,
);
name = Data;
@ -1297,6 +1300,7 @@
84B99C691FAE36B800ECDEDB /* FeedListFolder.swift in Sources */,
84F204DE1FAACB8B0076E152 /* FeedListTimelineViewController.swift in Sources */,
849A97A31ED9F180007D329B /* FolderTreeControllerDelegate.swift in Sources */,
845B14921FC2028A0013CF92 /* PseudoFeed.swift in Sources */,
849A97851ED9ECCD007D329B /* PreferencesWindowController.swift in Sources */,
849A977A1ED9EC04007D329B /* TimelineTableCellView.swift in Sources */,
849A97761ED9EC04007D329B /* TimelineCellAppearance.swift in Sources */,

92
Evergreen/Data/PseudoFeed.swift Normal file
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@ -0,0 +1,92 @@
//
// PseudoFeed.swift
// Evergreen
//
// Created by Brent Simmons on 11/19/17.
// Copyright © 2017 Ranchero Software. All rights reserved.
//
import Foundation
import Data
import RSCore
import Account
protocol PseudoFeedDelegate: DisplayNameProvider {
func fetchUnreadCount(for: Account, callback: (Int) -> Void)
}
final class PseudoFeed: UnreadCountProvider, DisplayNameProvider {
private static let fetchCoalescingDelay: TimeInterval = 0.1
private var timer: Timer?
private var unreadCounts = [Account: Int]()
private let delegate: PseudoFeedDelegate
var nameForDisplay: String {
get {
return delegate.nameForDisplay
}
}
var unreadCount = 0 {
didSet {
if unreadCount != oldValue {
postUnreadCountDidChangeNotification()
}
}
}
init(delegate: PseudoFeedDelegate) {
self.delegate = delegate
}
@objc func unreadCountDidChange(_ note: Notification) {
if let object = note.object, object is Account {
startCoalescingTimer()
}
}
private func fetchUnreadCount(for account: Account) {
delegate.fetchUnreadCount(for: account) { (accountUnreadCount) in
unreadCounts[account] = accountUnreadCount
}
}
private func fetchUnreadCounts() {
AccountManager.shared.accounts.forEach { self.fetchUnreadCount(for: $0) }
}
private func updateUnreadCount() {
unreadCount = AccountManager.shared.accounts.reduce(0) { (result, account) -> Int in
if let oneUnreadCount = unreadCounts[account] {
return result + oneUnreadCount
}
return result
}
}
// MARK: - Timer
private func stopTimer() {
if let timer = timer {
timer.rs_invalidateIfValid()
}
timer = nil
}
private func startCoalescingTimer() {
stopTimer()
timer = Timer(timeInterval: PseudoFeed.fetchCoalescingDelay, repeats: false, block: { (_) in
self.fetchUnreadCounts()
self.stopTimer()
})
}
}