126 lines
3.1 KiB
Swift
126 lines
3.1 KiB
Swift
//
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// SceneModel.swift
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// NetNewsWire
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//
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// Created by Maurice Parker on 6/28/20.
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// Copyright © 2020 Ranchero Software. All rights reserved.
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//
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import Foundation
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import Account
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import Articles
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import RSCore
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final class SceneModel: ObservableObject {
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@Published var refreshProgressState = RefreshProgressModel.State.none
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@Published var readButtonState: ArticleReadButtonState?
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@Published var starButtonState: ArticleStarButtonState?
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private var refreshProgressModel: RefreshProgressModel? = nil
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private var articleIconSchemeHandler: ArticleIconSchemeHandler? = nil
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private(set) var webViewProvider: WebViewProvider? = nil
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private(set) var sidebarModel = SidebarModel()
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private(set) var timelineModel = TimelineModel()
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// MARK: Initialization API
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/// Prepares the SceneModel to be used in the views
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func startup() {
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sidebarModel.delegate = self
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timelineModel.delegate = self
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self.refreshProgressModel = RefreshProgressModel()
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self.refreshProgressModel!.$state.assign(to: self.$refreshProgressState)
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self.articleIconSchemeHandler = ArticleIconSchemeHandler(sceneModel: self)
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self.webViewProvider = WebViewProvider(articleIconSchemeHandler: self.articleIconSchemeHandler!)
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NotificationCenter.default.addObserver(self, selector: #selector(statusesDidChange(_:)), name: .StatusesDidChange, object: nil)
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}
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// MARK: Article Management API
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/// Retrieves the article before the given article in the Timeline
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func findPrevArticle(_ article: Article) -> Article? {
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return timelineModel.findPrevArticle(article)
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}
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/// Retrieves the article after the given article in the Timeline
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func findNextArticle(_ article: Article) -> Article? {
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return timelineModel.findNextArticle(article)
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}
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/// Returns the article with the given articleID
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func articleFor(_ articleID: String) -> Article? {
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return timelineModel.articleFor(articleID)
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}
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}
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// MARK: SidebarModelDelegate
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extension SceneModel: SidebarModelDelegate {
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func unreadCount(for feed: Feed) -> Int {
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// TODO: Get the count from the timeline if Feed is the current timeline
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return feed.unreadCount
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}
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}
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// MARK: TimelineModelDelegate
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extension SceneModel: TimelineModelDelegate {
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func timelineRequestedWebFeedSelection(_: TimelineModel, webFeed: WebFeed) {
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}
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}
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// MARK: Private
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private extension SceneModel {
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// MARK: Notifications
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@objc func statusesDidChange(_ note: Notification) {
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guard let articleIDs = note.userInfo?[Account.UserInfoKey.articleIDs] as? Set<String> else {
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return
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}
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let selectedArticleIDs = timelineModel.selectedArticles.map { $0.articleID }
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if !articleIDs.intersection(selectedArticleIDs).isEmpty {
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updateArticleState()
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}
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}
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// MARK: Button State Updates
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func updateArticleState() {
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let articles = timelineModel.selectedArticles
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guard !articles.isEmpty else {
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readButtonState = nil
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starButtonState = nil
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return
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}
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if articles.anyArticleIsUnread() {
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readButtonState = .on
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} else if articles.anyArticleIsReadAndCanMarkUnread() {
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readButtonState = .off
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} else {
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readButtonState = nil
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}
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if articles.anyArticleIsUnstarred() {
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starButtonState = .on
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} else {
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starButtonState = .off
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}
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}
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}
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