123 lines
4.2 KiB
Swift
123 lines
4.2 KiB
Swift
//
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// TimelineCellData.swift
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// Evergreen
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//
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// Created by Brent Simmons on 2/6/16.
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// Copyright © 2016 Ranchero Software, LLC. All rights reserved.
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//
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import AppKit
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import Data
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var attributedTitleCache = [String: NSAttributedString]()
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var attributedDateCache = [String: NSAttributedString]()
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var attributedFeedNameCache = [String: NSAttributedString]()
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struct TimelineCellData {
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let title: String
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let text: String
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let attributedTitle: NSAttributedString //title + text
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let dateString: String
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let attributedDateString: NSAttributedString
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let feedName: String
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let attributedFeedName: NSAttributedString
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let showFeedName: Bool
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let avatar: NSImage? // feed icon, user avatar, or favicon
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let showAvatar: Bool // Make space even when avatar is nil
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let featuredImage: NSImage? // image from within the article
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let read: Bool
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let starred: Bool
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init(article: Article, appearance: TimelineCellAppearance, showFeedName: Bool, feedName: String?, avatar: NSImage?, showAvatar: Bool, featuredImage: NSImage?) {
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self.title = timelineTruncatedTitle(article)
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self.text = timelineTruncatedSummary(article)
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let attributedTitleCacheKey = "_title: " + self.title + "_text: " + self.text
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if let s = attributedTitleCache[attributedTitleCacheKey] {
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self.attributedTitle = s
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}
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else {
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self.attributedTitle = attributedTitleString(title, text, appearance)
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attributedTitleCache[attributedTitleCacheKey] = self.attributedTitle
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}
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self.dateString = timelineDateString(article.logicalDatePublished)
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if let s = attributedDateCache[self.dateString] {
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self.attributedDateString = s
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}
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else {
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self.attributedDateString = NSAttributedString(string: self.dateString, attributes: [NSAttributedStringKey.foregroundColor: appearance.dateColor, NSAttributedStringKey.font: appearance.dateFont])
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attributedDateCache[self.dateString] = self.attributedDateString
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}
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if let feedName = feedName {
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self.feedName = timelineTruncatedFeedName(feedName)
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}
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else {
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self.feedName = ""
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}
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if let s = attributedFeedNameCache[self.feedName] {
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self.attributedFeedName = s
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}
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else {
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self.attributedFeedName = NSAttributedString(string: self.feedName, attributes: [NSAttributedStringKey.foregroundColor: appearance.feedNameColor, NSAttributedStringKey.font: appearance.feedNameFont])
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attributedFeedNameCache[self.feedName] = self.attributedFeedName
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}
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self.showFeedName = showFeedName
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self.showAvatar = showAvatar
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self.avatar = avatar
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self.featuredImage = featuredImage
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self.read = article.status.read
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self.starred = article.status.starred
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}
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init() { //Empty
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self.title = ""
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self.attributedTitle = NSAttributedString(string: "")
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self.text = ""
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self.dateString = ""
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self.attributedDateString = NSAttributedString(string: "")
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self.feedName = ""
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self.attributedFeedName = NSAttributedString(string: "")
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self.showFeedName = false
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self.showAvatar = false
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self.avatar = nil
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self.featuredImage = nil
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self.read = true
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self.starred = false
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}
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static func emptyCache() {
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attributedTitleCache = [String: NSAttributedString]()
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attributedDateCache = [String: NSAttributedString]()
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attributedFeedNameCache = [String: NSAttributedString]()
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}
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}
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let emptyCellData = TimelineCellData()
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private func attributedTitleString(_ title: String, _ text: String, _ appearance: TimelineCellAppearance) -> NSAttributedString {
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if !title.isEmpty && !text.isEmpty {
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let titleMutable = NSMutableAttributedString(string: title, attributes: [NSAttributedStringKey.foregroundColor: appearance.titleColor, NSAttributedStringKey.font: appearance.titleFont])
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let attributedText = NSAttributedString(string: "\n" + text, attributes: [NSAttributedStringKey.foregroundColor: appearance.textColor, NSAttributedStringKey.font: appearance.textFont])
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titleMutable.append(attributedText)
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return titleMutable
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}
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if !title.isEmpty && text.isEmpty {
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return NSAttributedString(string: title, attributes: [NSAttributedStringKey.foregroundColor: appearance.titleColor, NSAttributedStringKey.font: appearance.titleFont])
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}
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return NSAttributedString(string: text, attributes: [NSAttributedStringKey.foregroundColor: appearance.textOnlyColor, NSAttributedStringKey.font: appearance.textOnlyFont])
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}
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