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