element-ios/Riot/Categories/UILabel.swift

44 lines
1.7 KiB
Swift

/*
Copyright 2020-2024 New Vector Ltd.
SPDX-License-Identifier: AGPL-3.0-only
Please see LICENSE in the repository root for full details.
*/
import Foundation
extension UILabel {
@objc func vc_setText(_ text: String, withLineSpacing lineSpacing: CGFloat, alignement: NSTextAlignment) {
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.lineSpacing = lineSpacing
paragraphStyle.alignment = alignement
let attributeString = NSAttributedString(string: text, attributes: [NSAttributedString.Key.paragraphStyle: paragraphStyle])
self.attributedText = attributeString
}
// Fix multiline label height with auto layout. After performing orientation multiline label text appears on one line.
// For more information see https://www.objc.io/issues/3-views/advanced-auto-layout-toolbox/#intrinsic-content-size-of-multi-line-text
@objc func vc_fixMultilineHeight() {
let width = self.frame.size.width
if self.preferredMaxLayoutWidth != width {
self.preferredMaxLayoutWidth = width
}
}
/// Sets an HTML string into the receiver. Does not support custom fonts but considers receiver's font size.
/// - Parameter htmlText: HTML text to be rendered.
@objc func setHTMLFromString(_ htmlText: String) {
let html = "<html><body>\(htmlText)</body></html>"
self.attributedText = HTMLFormatter.formatHTML(html,
withAllowedTags: ["b", "p", "br", "body"],
font: UIFont.systemFont(ofSize: font.pointSize))
}
}