mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2025-06-16 05:55:20 +00:00
613 lines
30 KiB
Swift
613 lines
30 KiB
Swift
import Foundation
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import UIKit
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import Postbox
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import TelegramCore
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import Display
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import libprisma
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import SwiftSignalKit
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public func chatInputStateStringWithAppliedEntities(_ text: String, entities: [MessageTextEntity]) -> NSAttributedString {
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var nsString: NSString?
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let string = NSMutableAttributedString(string: text)
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var skipEntity = false
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let stringLength = string.length
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for i in 0 ..< entities.count {
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if skipEntity {
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skipEntity = false
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continue
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}
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let entity = entities[i]
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var range = NSRange(location: entity.range.lowerBound, length: entity.range.upperBound - entity.range.lowerBound)
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if nsString == nil {
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nsString = text as NSString
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}
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if range.location >= stringLength {
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continue
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}
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if range.location + range.length > stringLength {
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range.length = stringLength - range.location
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}
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switch entity.type {
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case .Url, .Email, .PhoneNumber, .Mention, .Hashtag, .BotCommand:
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break
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case .Bold:
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string.addAttribute(ChatTextInputAttributes.bold, value: true as NSNumber, range: range)
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case .Italic:
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string.addAttribute(ChatTextInputAttributes.italic, value: true as NSNumber, range: range)
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case let .TextMention(peerId):
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string.addAttribute(ChatTextInputAttributes.textMention, value: ChatTextInputTextMentionAttribute(peerId: peerId), range: range)
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case let .TextUrl(url):
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string.addAttribute(ChatTextInputAttributes.textUrl, value: ChatTextInputTextUrlAttribute(url: url), range: range)
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case .Code:
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string.addAttribute(ChatTextInputAttributes.monospace, value: true as NSNumber, range: range)
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case .Strikethrough:
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string.addAttribute(ChatTextInputAttributes.strikethrough, value: true as NSNumber, range: range)
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case .Underline:
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string.addAttribute(ChatTextInputAttributes.underline, value: true as NSNumber, range: range)
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case .Spoiler:
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string.addAttribute(ChatTextInputAttributes.spoiler, value: true as NSNumber, range: range)
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case let .CustomEmoji(_, fileId):
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string.addAttribute(ChatTextInputAttributes.customEmoji, value: ChatTextInputTextCustomEmojiAttribute(interactivelySelectedFromPackId: nil, fileId: fileId, file: nil), range: range)
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case let .Pre(language):
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string.addAttribute(ChatTextInputAttributes.block, value: ChatTextInputTextQuoteAttribute(kind: .code(language: language), isCollapsed: false), range: range)
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case let .BlockQuote(isCollapsed):
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string.addAttribute(ChatTextInputAttributes.block, value: ChatTextInputTextQuoteAttribute(kind: .quote, isCollapsed: isCollapsed), range: range)
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default:
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break
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}
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}
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while true {
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var found = false
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string.enumerateAttribute(ChatTextInputAttributes.block, in: NSRange(location: 0, length: string.length), using: { value, range, stop in
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if let value = value as? ChatTextInputTextQuoteAttribute, value.isCollapsed {
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found = true
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let blockString = string.attributedSubstring(from: range)
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string.replaceCharacters(in: range, with: "")
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string.insert(NSAttributedString(string: " ", attributes: [
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ChatTextInputAttributes.collapsedBlock: blockString
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]), at: range.lowerBound)
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stop.pointee = true
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}
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})
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if !found {
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break
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}
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}
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return string
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}
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private let syntaxHighlighter = Syntaxer()
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public func stringWithAppliedEntities(_ text: String, entities: [MessageTextEntity], baseColor: UIColor, linkColor: UIColor, baseQuoteTintColor: UIColor? = nil, baseQuoteSecondaryTintColor: UIColor? = nil, baseQuoteTertiaryTintColor: UIColor? = nil, codeBlockTitleColor: UIColor? = nil, codeBlockAccentColor: UIColor? = nil, codeBlockBackgroundColor: UIColor? = nil, baseFont: UIFont, linkFont: UIFont, boldFont: UIFont, italicFont: UIFont, boldItalicFont: UIFont, fixedFont: UIFont, blockQuoteFont: UIFont, underlineLinks: Bool = true, external: Bool = false, message: Message?, entityFiles: [MediaId: TelegramMediaFile] = [:], adjustQuoteFontSize: Bool = false, cachedMessageSyntaxHighlight: CachedMessageSyntaxHighlight? = nil) -> NSAttributedString {
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let baseQuoteTintColor = baseQuoteTintColor ?? baseColor
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var nsString: NSString?
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let string = NSMutableAttributedString(string: text, attributes: [NSAttributedString.Key.font: baseFont, NSAttributedString.Key.foregroundColor: baseColor])
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var skipEntity = false
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var underlineAllLinks = false
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if linkColor.argb == baseColor.argb {
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underlineAllLinks = true
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}
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var fontAttributeMask: [ChatTextFontAttributes] = Array(repeating: [], count: string.length)
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let addFontAttributes: (NSRange, ChatTextFontAttributes) -> Void = { range, attributes in
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for i in range.lowerBound ..< range.upperBound {
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fontAttributeMask[i].formUnion(attributes)
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}
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}
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for i in 0 ..< entities.count {
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if skipEntity {
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skipEntity = false
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continue
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}
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let stringLength = string.length
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let entity = entities[i]
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var range = NSRange(location: entity.range.lowerBound, length: entity.range.upperBound - entity.range.lowerBound)
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if nsString == nil {
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nsString = text as NSString
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}
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if range.location > stringLength {
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continue
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} else if range.location + range.length > stringLength {
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range.length = stringLength - range.location
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}
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switch entity.type {
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case .Url:
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string.addAttribute(NSAttributedString.Key.foregroundColor, value: linkColor, range: range)
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if underlineLinks {
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string.addAttribute(NSAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue as NSNumber, range: range)
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}
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if nsString == nil {
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nsString = text as NSString
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}
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.URL), value: nsString!.substring(with: range), range: range)
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case .Email:
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string.addAttribute(NSAttributedString.Key.foregroundColor, value: linkColor, range: range)
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if nsString == nil {
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nsString = text as NSString
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}
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if underlineLinks && underlineAllLinks {
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string.addAttribute(NSAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue as NSNumber, range: range)
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}
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.URL), value: "mailto:\(nsString!.substring(with: range))", range: range)
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case .PhoneNumber:
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string.addAttribute(NSAttributedString.Key.foregroundColor, value: linkColor, range: range)
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if nsString == nil {
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nsString = text as NSString
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}
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if underlineLinks && underlineAllLinks {
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string.addAttribute(NSAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue as NSNumber, range: range)
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}
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.URL), value: "tel:\(nsString!.substring(with: range))", range: range)
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case let .TextUrl(url):
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string.addAttribute(NSAttributedString.Key.foregroundColor, value: linkColor, range: range)
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if nsString == nil {
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nsString = text as NSString
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}
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if underlineLinks && underlineAllLinks {
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string.addAttribute(NSAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue as NSNumber, range: range)
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}
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if external {
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string.addAttribute(NSAttributedString.Key.link, value: url, range: range)
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} else {
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.URL), value: url, range: range)
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}
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case .Bold:
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addFontAttributes(range, .bold)
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case .Italic:
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addFontAttributes(range, .italic)
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case .Mention:
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string.addAttribute(NSAttributedString.Key.foregroundColor, value: linkColor, range: range)
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if underlineLinks && underlineAllLinks {
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string.addAttribute(NSAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue as NSNumber, range: range)
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}
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if linkFont !== baseFont {
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string.addAttribute(NSAttributedString.Key.font, value: linkFont, range: range)
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}
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if nsString == nil {
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nsString = text as NSString
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}
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.PeerTextMention), value: nsString!.substring(with: range), range: range)
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case .Strikethrough:
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string.addAttribute(NSAttributedString.Key.strikethroughStyle, value: NSUnderlineStyle.single.rawValue as NSNumber, range: range)
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case .Underline:
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string.addAttribute(NSAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue as NSNumber, range: range)
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case let .TextMention(peerId):
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string.addAttribute(NSAttributedString.Key.foregroundColor, value: linkColor, range: range)
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if underlineLinks && underlineAllLinks {
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string.addAttribute(NSAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue as NSNumber, range: range)
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}
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if linkFont !== baseFont {
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string.addAttribute(NSAttributedString.Key.font, value: linkFont, range: range)
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}
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let mention = nsString!.substring(with: range)
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.PeerMention), value: TelegramPeerMention(peerId: peerId, mention: mention), range: range)
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case .Hashtag:
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if nsString == nil {
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nsString = text as NSString
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}
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let hashtag = nsString!.substring(with: range)
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if i + 1 != entities.count {
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if case .Mention = entities[i + 1].type {
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let nextRange = NSRange(location: entities[i + 1].range.lowerBound, length: entities[i + 1].range.upperBound - entities[i + 1].range.lowerBound)
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if nextRange.location == range.location + range.length + 1 && nsString!.character(at: range.location + range.length) == 43 {
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skipEntity = true
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if nextRange.length > 0 {
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let peerName: String = nsString!.substring(with: NSRange(location: nextRange.location + 1, length: nextRange.length - 1))
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let combinedRange = NSRange(location: range.location, length: nextRange.location + nextRange.length - range.location)
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string.addAttribute(NSAttributedString.Key.foregroundColor, value: linkColor, range: combinedRange)
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if linkColor.isEqual(baseColor) {
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string.addAttribute(NSAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue as NSNumber, range: combinedRange)
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}
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.Hashtag), value: TelegramHashtag(peerName: peerName, hashtag: hashtag), range: combinedRange)
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}
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}
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}
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}
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if !skipEntity {
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var hashtagValue = hashtag
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var peerNameValue: String?
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if hashtagValue.contains("@") {
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let components = hashtagValue.components(separatedBy: "@")
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if components.count == 2, let firstComponent = components.first, let lastComponent = components.last, !firstComponent.isEmpty && !lastComponent.isEmpty {
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hashtagValue = firstComponent
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peerNameValue = lastComponent
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}
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}
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string.addAttribute(NSAttributedString.Key.foregroundColor, value: linkColor, range: range)
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if underlineLinks && underlineAllLinks {
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string.addAttribute(NSAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue as NSNumber, range: range)
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}
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.Hashtag), value: TelegramHashtag(peerName: peerNameValue, hashtag: hashtagValue), range: range)
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}
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case .BotCommand:
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string.addAttribute(NSAttributedString.Key.foregroundColor, value: linkColor, range: range)
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if underlineLinks && underlineAllLinks {
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string.addAttribute(NSAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue as NSNumber, range: range)
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}
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if nsString == nil {
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nsString = text as NSString
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}
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.BotCommand), value: nsString!.substring(with: range), range: range)
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case .Code:
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addFontAttributes(range, .monospace)
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.Code), value: nsString!.substring(with: range), range: range)
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case let .Pre(language):
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addFontAttributes(range, .monospace)
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addFontAttributes(range, .blockQuote)
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if nsString == nil {
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nsString = text as NSString
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}
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if let codeBlockTitleColor, let codeBlockAccentColor, let codeBlockBackgroundColor {
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var title: NSAttributedString?
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if let language, !language.isEmpty {
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title = NSAttributedString(string: language.capitalized, font: boldFont.withSize(round(boldFont.pointSize * 0.8235294117647058)), textColor: codeBlockTitleColor)
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}
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string.addAttribute(NSAttributedString.Key(rawValue: "Attribute__Blockquote"), value: TextNodeBlockQuoteData(kind: .code(language: language), title: title, color: codeBlockAccentColor, secondaryColor: nil, tertiaryColor: nil, backgroundColor: codeBlockBackgroundColor, isCollapsible: false), range: range)
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}
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case let .BlockQuote(isCollapsed):
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addFontAttributes(range, .blockQuote)
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string.addAttribute(NSAttributedString.Key(rawValue: "Attribute__Blockquote"), value: TextNodeBlockQuoteData(kind: .quote, title: nil, color: baseQuoteTintColor, secondaryColor: baseQuoteSecondaryTintColor, tertiaryColor: baseQuoteTertiaryTintColor, backgroundColor: baseQuoteTintColor.withMultipliedAlpha(0.1), isCollapsible: isCollapsed), range: range)
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case .BankCard:
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string.addAttribute(NSAttributedString.Key.foregroundColor, value: linkColor, range: range)
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if underlineLinks && underlineAllLinks {
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string.addAttribute(NSAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue as NSNumber, range: range)
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}
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if nsString == nil {
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nsString = text as NSString
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}
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.BankCard), value: nsString!.substring(with: range), range: range)
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case .Spoiler:
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if external {
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string.addAttribute(NSAttributedString.Key.backgroundColor, value: UIColor.gray, range: range)
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} else {
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.Spoiler), value: true as NSNumber, range: range)
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}
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case let .Custom(type):
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if type == ApplicationSpecificEntityType.Timecode {
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string.addAttribute(NSAttributedString.Key.foregroundColor, value: linkColor, range: range)
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if underlineLinks && underlineAllLinks {
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string.addAttribute(NSAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue as NSNumber, range: range)
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}
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if nsString == nil {
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nsString = text as NSString
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}
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let text = nsString!.substring(with: range)
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if let time = parseTimecodeString(text) {
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.Timecode), value: TelegramTimecode(time: time, text: text), range: range)
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}
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} else if type == ApplicationSpecificEntityType.Button {
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string.addAttribute(NSAttributedString.Key(rawValue: TelegramTextAttributes.Button), value: true as NSNumber, range: range)
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addFontAttributes(range, .smaller)
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}
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case let .CustomEmoji(_, fileId):
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let mediaId = MediaId(namespace: Namespaces.Media.CloudFile, id: fileId)
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var emojiFile: TelegramMediaFile?
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if let file = message?.associatedMedia[mediaId] as? TelegramMediaFile {
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emojiFile = file
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} else {
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emojiFile = entityFiles[mediaId]
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}
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string.addAttribute(ChatTextInputAttributes.customEmoji, value: ChatTextInputTextCustomEmojiAttribute(interactivelySelectedFromPackId: nil, fileId: fileId, file: emojiFile), range: range)
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default:
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break
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}
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func setFont(range: NSRange, fontAttributes: ChatTextFontAttributes) {
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var font: UIFont
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var isQuote = false
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var fontAttributes = fontAttributes
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if fontAttributes.contains(.blockQuote) {
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fontAttributes.remove(.blockQuote)
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isQuote = true
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}
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if fontAttributes == [.bold, .italic] {
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font = boldItalicFont
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} else if fontAttributes == [.bold] {
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font = boldFont
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} else if fontAttributes == [.italic] {
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font = italicFont
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} else if fontAttributes == [.monospace] {
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font = fixedFont
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} else if fontAttributes == [.smaller] {
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font = baseFont.withSize(floor(baseFont.pointSize * 0.9))
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} else {
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font = baseFont
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}
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if adjustQuoteFontSize, isQuote {
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font = font.withSize(round(font.pointSize * 0.8235294117647058))
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}
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string.addAttribute(.font, value: font, range: range)
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}
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var currentAttributeSpan: (startIndex: Int, attributes: ChatTextFontAttributes)?
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for i in 0 ..< fontAttributeMask.count {
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if fontAttributeMask[i] != currentAttributeSpan?.attributes {
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if let currentAttributeSpan {
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setFont(range: NSRange(location: currentAttributeSpan.startIndex, length: i - currentAttributeSpan.startIndex), fontAttributes: currentAttributeSpan.attributes)
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}
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currentAttributeSpan = (i, fontAttributeMask[i])
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}
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}
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if let currentAttributeSpan {
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setFont(range: NSRange(location: currentAttributeSpan.startIndex, length: fontAttributeMask.count - currentAttributeSpan.startIndex), fontAttributes: currentAttributeSpan.attributes)
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}
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}
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string.enumerateAttribute(NSAttributedString.Key("Attribute__Blockquote"), in: NSRange(location: 0, length: string.length), using: { value, range, _ in
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guard let value = value as? TextNodeBlockQuoteData, case let .code(language) = value.kind, let language, !language.isEmpty else {
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return
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}
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let codeText = (string.string as NSString).substring(with: range)
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if let cachedMessageSyntaxHighlight, let entry = cachedMessageSyntaxHighlight.values[CachedMessageSyntaxHighlight.Spec(language: language, text: codeText)] {
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for entity in entry.entities {
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string.addAttribute(.foregroundColor, value: UIColor(rgb: UInt32(bitPattern: entity.color)), range: NSRange(location: range.location + entity.range.lowerBound, length: entity.range.upperBound - entity.range.lowerBound))
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}
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}
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})
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return string
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}
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public final class MessageSyntaxHighlight: Codable, Equatable {
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public struct Entity: Codable, Equatable {
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private enum CodingKeys: String, CodingKey {
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case color = "c"
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case rangeLow = "r"
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case rangeLength = "rl"
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}
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public var color: Int32
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public var range: Range<Int>
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public init(color: Int32, range: Range<Int>) {
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self.color = color
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self.range = range
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}
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public init(from decoder: Decoder) throws {
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let container = try decoder.container(keyedBy: CodingKeys.self)
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self.color = try container.decode(Int32.self, forKey: .color)
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let rangeLow = Int(try container.decode(Int32.self, forKey: .rangeLow))
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let rangeLength = Int(try container.decode(Int32.self, forKey: .rangeLength))
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self.range = rangeLow ..< (rangeLow + rangeLength)
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}
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public func encode(to encoder: Encoder) throws {
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var container = encoder.container(keyedBy: CodingKeys.self)
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try container.encode(self.color, forKey: .color)
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try container.encode(Int32(self.range.lowerBound), forKey: .rangeLow)
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try container.encode(Int32(self.range.upperBound - self.range.lowerBound), forKey: .rangeLength)
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}
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}
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private enum CodingKeys: String, CodingKey {
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case entities = "e"
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}
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public let entities: [Entity]
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public init(entities: [Entity]) {
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self.entities = entities
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}
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public init(from decoder: Decoder) throws {
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let container = try decoder.container(keyedBy: CodingKeys.self)
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self.entities = try container.decode([Entity].self, forKey: .entities)
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}
|
|
|
|
public func encode(to encoder: Encoder) throws {
|
|
var container = encoder.container(keyedBy: CodingKeys.self)
|
|
|
|
try container.encode(self.entities, forKey: .entities)
|
|
}
|
|
|
|
public static func ==(lhs: MessageSyntaxHighlight, rhs: MessageSyntaxHighlight) -> Bool {
|
|
if lhs.entities != rhs.entities {
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
}
|
|
|
|
public final class CachedMessageSyntaxHighlight: Codable, Equatable {
|
|
public struct Spec: Hashable, Codable {
|
|
private enum CodingKeys: String, CodingKey {
|
|
case language = "l"
|
|
case text = "t"
|
|
}
|
|
|
|
public var language: String
|
|
public var text: String
|
|
|
|
public init(language: String, text: String) {
|
|
self.language = language
|
|
self.text = text
|
|
}
|
|
}
|
|
|
|
private enum CodingKeys: String, CodingKey {
|
|
case values = "v"
|
|
}
|
|
|
|
private struct CodingValueEntry: Codable {
|
|
private enum CodingKeys: String, CodingKey {
|
|
case key = "k"
|
|
case value = "v"
|
|
}
|
|
|
|
let key: Spec
|
|
let value: MessageSyntaxHighlight
|
|
|
|
init(key: Spec, value: MessageSyntaxHighlight) {
|
|
self.key = key
|
|
self.value = value
|
|
}
|
|
|
|
init(from decoder: Decoder) throws {
|
|
let container = try decoder.container(keyedBy: CodingKeys.self)
|
|
|
|
self.key = try container.decode(Spec.self, forKey: .key)
|
|
self.value = try container.decode(MessageSyntaxHighlight.self, forKey: .value)
|
|
}
|
|
|
|
func encode(to encoder: Encoder) throws {
|
|
var container = encoder.container(keyedBy: CodingKeys.self)
|
|
|
|
try container.encode(self.key, forKey: .key)
|
|
try container.encode(self.value, forKey: .value)
|
|
}
|
|
}
|
|
|
|
public let values: [Spec: MessageSyntaxHighlight]
|
|
|
|
public init(values: [Spec: MessageSyntaxHighlight]) {
|
|
self.values = values
|
|
}
|
|
|
|
public init(from decoder: Decoder) throws {
|
|
let container = try decoder.container(keyedBy: CodingKeys.self)
|
|
|
|
let valueEntries = try container.decode([CodingValueEntry].self, forKey: .values)
|
|
var values: [Spec: MessageSyntaxHighlight] = [:]
|
|
for entry in valueEntries {
|
|
values[entry.key] = entry.value
|
|
}
|
|
self.values = values
|
|
}
|
|
|
|
public func encode(to encoder: Encoder) throws {
|
|
var container = encoder.container(keyedBy: CodingKeys.self)
|
|
|
|
let valueEntries = self.values.map { CodingValueEntry(key: $0.key, value: $0.value) }
|
|
try container.encode(valueEntries, forKey: .values)
|
|
}
|
|
|
|
public static func ==(lhs: CachedMessageSyntaxHighlight, rhs: CachedMessageSyntaxHighlight) -> Bool {
|
|
if lhs.values != rhs.values {
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
}
|
|
|
|
private let messageSyntaxHighlightQueue = Queue(name: "MessageSyntaxHighlight")
|
|
|
|
public func extractMessageSyntaxHighlightSpecs(text: String, entities: [MessageTextEntity]) -> [CachedMessageSyntaxHighlight.Spec] {
|
|
if entities.isEmpty {
|
|
return []
|
|
}
|
|
var result: [CachedMessageSyntaxHighlight.Spec] = []
|
|
let nsString = text as NSString
|
|
for entity in entities {
|
|
if case let .Pre(language) = entity.type, let language, !language.isEmpty {
|
|
var range = entity.range
|
|
if range.lowerBound < 0 {
|
|
range = 0 ..< range.upperBound
|
|
}
|
|
if range.upperBound > nsString.length {
|
|
range = range.lowerBound ..< nsString.length
|
|
}
|
|
if range.upperBound != range.lowerBound {
|
|
result.append(CachedMessageSyntaxHighlight.Spec(language: language, text: nsString.substring(with: NSRange(location: range.lowerBound, length: range.upperBound - range.lowerBound))))
|
|
}
|
|
}
|
|
}
|
|
|
|
return result
|
|
}
|
|
|
|
private let internalFixedCodeFont = Font.regular(17.0)
|
|
|
|
public func asyncUpdateMessageSyntaxHighlight(engine: TelegramEngine, messageId: EngineMessage.Id, current: CachedMessageSyntaxHighlight?, specs: [CachedMessageSyntaxHighlight.Spec]) -> Signal<Never, NoError> {
|
|
if let current, !specs.contains(where: { current.values[$0] == nil }) {
|
|
return .complete()
|
|
}
|
|
|
|
return Signal { subscriber in
|
|
var updated: [CachedMessageSyntaxHighlight.Spec: MessageSyntaxHighlight] = [:]
|
|
|
|
let theme = SyntaxterTheme(dark: false, textColor: .black, textFont: internalFixedCodeFont, italicFont: internalFixedCodeFont, mediumFont: internalFixedCodeFont)
|
|
|
|
for spec in specs {
|
|
if let value = current?.values[spec] {
|
|
updated[spec] = value
|
|
} else {
|
|
var entities: [MessageSyntaxHighlight.Entity] = []
|
|
|
|
if let syntaxHighlighter {
|
|
if let highlightedString = syntaxHighlighter.syntax(spec.text, language: spec.language, theme: theme) {
|
|
highlightedString.enumerateAttribute(.foregroundColor, in: NSRange(location: 0, length: highlightedString.length), using: { value, subRange, _ in
|
|
if let value = value as? UIColor, value != .black {
|
|
entities.append(MessageSyntaxHighlight.Entity(color: Int32(bitPattern: value.rgb), range: subRange.lowerBound ..< subRange.upperBound))
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
updated[spec] = MessageSyntaxHighlight(entities: entities)
|
|
}
|
|
}
|
|
|
|
if let entry = CodableEntry(CachedMessageSyntaxHighlight(values: updated)) {
|
|
return engine.messages.storeLocallyDerivedData(messageId: messageId, data: ["code": entry]).start(completed: {
|
|
subscriber.putCompletion()
|
|
})
|
|
} else {
|
|
return EmptyDisposable
|
|
}
|
|
}
|
|
|> runOn(messageSyntaxHighlightQueue)
|
|
}
|
|
|
|
public func asyncStanaloneSyntaxHighlight(current: CachedMessageSyntaxHighlight?, specs: [CachedMessageSyntaxHighlight.Spec]) -> Signal<CachedMessageSyntaxHighlight, NoError> {
|
|
if let current, !specs.contains(where: { current.values[$0] == nil }) {
|
|
return .single(current)
|
|
}
|
|
|
|
return Signal { subscriber in
|
|
var updated: [CachedMessageSyntaxHighlight.Spec: MessageSyntaxHighlight] = [:]
|
|
|
|
let theme = SyntaxterTheme(dark: false, textColor: .black, textFont: internalFixedCodeFont, italicFont: internalFixedCodeFont, mediumFont: internalFixedCodeFont)
|
|
|
|
for spec in specs {
|
|
if let value = current?.values[spec] {
|
|
updated[spec] = value
|
|
} else {
|
|
var entities: [MessageSyntaxHighlight.Entity] = []
|
|
|
|
if let syntaxHighlighter {
|
|
if let highlightedString = syntaxHighlighter.syntax(spec.text, language: spec.language, theme: theme) {
|
|
highlightedString.enumerateAttribute(.foregroundColor, in: NSRange(location: 0, length: highlightedString.length), using: { value, subRange, _ in
|
|
if let value = value as? UIColor, value != .black {
|
|
entities.append(MessageSyntaxHighlight.Entity(color: Int32(bitPattern: value.rgb), range: subRange.lowerBound ..< subRange.upperBound))
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
updated[spec] = MessageSyntaxHighlight(entities: entities)
|
|
}
|
|
}
|
|
|
|
subscriber.putNext(CachedMessageSyntaxHighlight(values: updated))
|
|
subscriber.putCompletion()
|
|
|
|
return EmptyDisposable
|
|
}
|
|
|> runOn(messageSyntaxHighlightQueue)
|
|
}
|