mirror of
https://github.com/Ranchero-Software/NetNewsWire.git
synced 2024-12-14 18:35:08 +01:00
152 lines
3.1 KiB
Swift
152 lines
3.1 KiB
Swift
|
||
//
|
||
// Container.swift
|
||
// NetNewsWire
|
||
//
|
||
// Created by Brent Simmons on 4/17/16.
|
||
// Copyright © 2016 Ranchero Software, LLC. All rights reserved.
|
||
//
|
||
|
||
import Foundation
|
||
import RSCore
|
||
import Articles
|
||
|
||
extension Notification.Name {
|
||
|
||
public static let ChildrenDidChange = Notification.Name("ChildrenDidChange")
|
||
}
|
||
|
||
public protocol Container: class {
|
||
|
||
var account: Account? { get }
|
||
var topLevelFeeds: Set<Feed> { get set }
|
||
var folders: Set<Folder>? { get set }
|
||
|
||
func hasAtLeastOneFeed() -> Bool
|
||
func objectIsChild(_ object: AnyObject) -> Bool
|
||
|
||
func hasChildFolder(with: String) -> Bool
|
||
func childFolder(with: String) -> Folder?
|
||
|
||
func removeFeed(_ feed: Feed)
|
||
func addFeed(_ feed: Feed)
|
||
|
||
//Recursive — checks subfolders
|
||
func flattenedFeeds() -> Set<Feed>
|
||
func hasFeed(with feedID: String) -> Bool
|
||
func hasFeed(withURL url: String) -> Bool
|
||
func existingFeed(with feedID: String) -> Feed?
|
||
func existingFeed(withURL url: String) -> Feed?
|
||
func existingFolder(with name: String) -> Folder?
|
||
func existingFolder(withID: Int) -> Folder?
|
||
|
||
func postChildrenDidChangeNotification()
|
||
}
|
||
|
||
public extension Container {
|
||
|
||
func hasAtLeastOneFeed() -> Bool {
|
||
return topLevelFeeds.count > 0
|
||
}
|
||
|
||
func hasChildFolder(with name: String) -> Bool {
|
||
return childFolder(with: name) != nil
|
||
}
|
||
|
||
func childFolder(with name: String) -> Folder? {
|
||
guard let folders = folders else {
|
||
return nil
|
||
}
|
||
for folder in folders {
|
||
if folder.name == name {
|
||
return folder
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
func objectIsChild(_ object: AnyObject) -> Bool {
|
||
if let feed = object as? Feed {
|
||
return topLevelFeeds.contains(feed)
|
||
}
|
||
if let folder = object as? Folder {
|
||
return folders?.contains(folder) ?? false
|
||
}
|
||
return false
|
||
}
|
||
|
||
func flattenedFeeds() -> Set<Feed> {
|
||
var feeds = Set<Feed>()
|
||
feeds.formUnion(topLevelFeeds)
|
||
if let folders = folders {
|
||
for folder in folders {
|
||
feeds.formUnion(folder.flattenedFeeds())
|
||
}
|
||
}
|
||
return feeds
|
||
}
|
||
|
||
func hasFeed(with feedID: String) -> Bool {
|
||
return existingFeed(with: feedID) != nil
|
||
}
|
||
|
||
func hasFeed(withURL url: String) -> Bool {
|
||
return existingFeed(withURL: url) != nil
|
||
}
|
||
|
||
func existingFeed(with feedID: String) -> Feed? {
|
||
for feed in flattenedFeeds() {
|
||
if feed.feedID == feedID {
|
||
return feed
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
func existingFeed(withURL url: String) -> Feed? {
|
||
for feed in flattenedFeeds() {
|
||
if feed.url == url {
|
||
return feed
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
func existingFolder(with name: String) -> Folder? {
|
||
guard let folders = folders else {
|
||
return nil
|
||
}
|
||
|
||
for folder in folders {
|
||
if folder.name == name {
|
||
return folder
|
||
}
|
||
if let subFolder = folder.existingFolder(with: name) {
|
||
return subFolder
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
func existingFolder(withID folderID: Int) -> Folder? {
|
||
guard let folders = folders else {
|
||
return nil
|
||
}
|
||
|
||
for folder in folders {
|
||
if folder.folderID == folderID {
|
||
return folder
|
||
}
|
||
if let subFolder = folder.existingFolder(withID: folderID) {
|
||
return subFolder
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
func postChildrenDidChangeNotification() {
|
||
NotificationCenter.default.post(name: .ChildrenDidChange, object: self)
|
||
}
|
||
}
|
||
|