Files
letro-ios/ElementX/Sources/Other/HTMLParsing/AttributedStringBuilder.swift

67 lines
3.2 KiB
Swift

//
// Copyright 2022-2024 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
// Please see LICENSE files in the repository root for full details.
//
import Compound
import DTCoreText
import Foundation
import LRUCache
import MatrixRustSDK
protocol MentionBuilderProtocol {
func handleUserMention(for attributedString: NSMutableAttributedString, in range: NSRange, url: URL, userID: String, userDisplayName: String?)
func handleRoomIDMention(for attributedString: NSMutableAttributedString, in range: NSRange, url: URL, roomID: String)
func handleRoomAliasMention(for attributedString: NSMutableAttributedString, in range: NSRange, url: URL, roomAlias: String, roomDisplayName: String?)
func handleEventOnRoomAliasMention(for attributedString: NSMutableAttributedString, in range: NSRange, url: URL, eventID: String, roomAlias: String)
func handleEventOnRoomIDMention(for attributedString: NSMutableAttributedString, in range: NSRange, url: URL, eventID: String, roomID: String)
func handleAllUsersMention(for attributedString: NSMutableAttributedString, in range: NSRange)
}
extension NSAttributedString.Key {
static let DTTextBlocks: NSAttributedString.Key = .init(rawValue: DTTextBlocksAttribute)
static let MatrixBlockquote: NSAttributedString.Key = .init(rawValue: BlockquoteAttribute.name)
static let MatrixUserID: NSAttributedString.Key = .init(rawValue: UserIDAttribute.name)
static let MatrixUserDisplayName: NSAttributedString.Key = .init(rawValue: UserDisplayNameAttribute.name)
static let MatrixRoomDisplayName: NSAttributedString.Key = .init(rawValue: RoomDisplayNameAttribute.name)
static let MatrixRoomID: NSAttributedString.Key = .init(rawValue: RoomIDAttribute.name)
static let MatrixRoomAlias: NSAttributedString.Key = .init(rawValue: RoomAliasAttribute.name)
static let MatrixEventOnRoomID: NSAttributedString.Key = .init(rawValue: EventOnRoomIDAttribute.name)
static let MatrixEventOnRoomAlias: NSAttributedString.Key = .init(rawValue: EventOnRoomAliasAttribute.name)
static let MatrixAllUsersMention: NSAttributedString.Key = .init(rawValue: AllUsersMentionAttribute.name)
}
struct AttributedStringBuilder: AttributedStringBuilderProtocol {
private static let defaultKey = "default"
private let builder: AttributedStringBuilderProtocol
static var useNextGenHTMLParser = false
static func invalidateCaches() {
AttributedStringBuilderV1.invalidateCaches()
}
init(cacheKey: String = defaultKey, mentionBuilder: MentionBuilderProtocol) {
if Self.useNextGenHTMLParser {
builder = AttributedStringBuilderV2(cacheKey: cacheKey, mentionBuilder: mentionBuilder)
} else {
builder = AttributedStringBuilderV1(cacheKey: cacheKey, mentionBuilder: mentionBuilder)
}
}
func fromPlain(_ string: String?) -> AttributedString? {
builder.fromPlain(string)
}
func fromHTML(_ htmlString: String?) -> AttributedString? {
builder.fromHTML(htmlString)
}
func addMatrixEntityPermalinkAttributesTo(_ attributedString: NSMutableAttributedString) {
builder.addMatrixEntityPermalinkAttributesTo(attributedString)
}
}