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Code highlight improvements

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This commit is contained in:
Ali 2023-11-10 15:20:17 +04:00
parent 6a7f071252
commit 82281662e1
10 changed files with 656 additions and 178 deletions
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38
submodules/TextFormat/Sources/StringWithAppliedEntities.swift
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@ -538,3 +538,41 @@ public func asyncUpdateMessageSyntaxHighlight(engine: TelegramEngine, messageId:
}
|> 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)
}