96 lines
2.6 KiB
Swift
96 lines
2.6 KiB
Swift
//
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// StatusFormat.swift
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// ComposeUI
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//
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// Created by Shadowfacts on 1/12/19.
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// Copyright © 2019 Shadowfacts. All rights reserved.
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//
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import UIKit
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import Pachyderm
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enum StatusFormat: Int, CaseIterable {
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case bold, italics, strikethrough, code
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func insertionResult(for contentType: StatusContentType) -> FormatInsertionResult? {
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switch contentType {
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case .plain:
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return nil
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case .markdown:
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return Markdown.format(self)
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case .html:
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return HTML.format(self)
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}
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}
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var imageName: String? {
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switch self {
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case .italics:
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return "italic"
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case .bold:
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return "bold"
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case .strikethrough:
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return "strikethrough"
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default:
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return nil
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}
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}
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var title: (String, [NSAttributedString.Key: Any])? {
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if self == .code {
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return ("</>", [.font: UIFont(name: "Menlo", size: 17)!])
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} else {
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return nil
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}
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}
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var accessibilityLabel: String {
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switch self {
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case .italics:
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return NSLocalizedString("Italics", comment: "italics text format accessibility label")
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case .bold:
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return NSLocalizedString("Bold", comment: "bold text format accessibility label")
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case .strikethrough:
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return NSLocalizedString("Strikethrough", comment: "strikethrough text format accessibility label")
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case .code:
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return NSLocalizedString("Code", comment: "code text format accessibility label")
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}
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}
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}
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typealias FormatInsertionResult = (prefix: String, suffix: String, insertionPoint: Int)
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fileprivate protocol FormatType {
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static func format(_ format: StatusFormat) -> FormatInsertionResult
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}
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extension StatusFormat {
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struct Markdown: FormatType {
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static var formats: [StatusFormat: String] = [
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.italics: "_",
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.bold: "**",
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.strikethrough: "~~",
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.code: "`"
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]
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static func format(_ format: StatusFormat) -> FormatInsertionResult {
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let str = formats[format]!
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return (str, str, str.count)
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}
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}
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struct HTML: FormatType {
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static var tags: [StatusFormat: String] = [
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.italics: "em",
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.bold: "strong",
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.strikethrough: "del",
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.code: "code"
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]
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static func format(_ format: StatusFormat) -> FormatInsertionResult {
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let tag = tags[format]!
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return ("<\(tag)>", "</\(tag)>", tag.count + 2)
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}
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}
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}
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