695 lines
24 KiB
Swift
695 lines
24 KiB
Swift
import SwiftUI
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enum MDSegment {
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case text(AttributedString)
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case image(ImageSource, src: String)
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}
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enum AppLink {
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static func task(_ id: String) -> URL {
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var c = URLComponents()
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c.scheme = "byre-app"
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c.host = "task"
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c.queryItems = [URLQueryItem(name: "id", value: id)]
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return c.url!
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}
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static func todo(_ projectId: String, _ title: String, discuss: Bool) -> URL {
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var c = URLComponents()
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c.scheme = "byre-app"
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c.host = "todo"
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c.queryItems = [URLQueryItem(name: "project", value: projectId), URLQueryItem(name: "title", value: title), URLQueryItem(name: "discuss", value: discuss ? "1" : "0")]
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return c.url!
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}
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static func suggest(_ projectId: String, _ title: String, _ brief: String, discuss: Bool) -> URL {
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var c = URLComponents()
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c.scheme = "byre-app"
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c.host = "suggest"
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c.queryItems = [URLQueryItem(name: "project", value: projectId), URLQueryItem(name: "title", value: title), URLQueryItem(name: "brief", value: brief), URLQueryItem(name: "discuss", value: discuss ? "1" : "0")]
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return c.url!
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}
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}
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@MainActor
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func openAppLink(_ url: URL, _ store: Store, _ overlays: Overlays) -> OpenURLAction.Result {
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guard url.scheme == "byre-app", let c = URLComponents(url: url, resolvingAgainstBaseURL: false) else {
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return .systemAction
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}
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let q = Dictionary((c.queryItems ?? []).map { ($0.name, $0.value ?? "") }, uniquingKeysWith: { a, _ in a })
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switch c.host {
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case "task":
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store.focusTask(q["id"] ?? "")
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case "todo":
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store.startTodo(q["project"] ?? "", q["title"] ?? "", discuss: q["discuss"] == "1", overlays)
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case "suggest":
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if q["discuss"] == "1" {
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store.discussSuggestion(q["title"] ?? "", brief: q["brief"] ?? "", overlays)
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} else {
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store.startSuggestion(q["project"] ?? "", q["title"] ?? "", brief: q["brief"] ?? "", overlays)
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}
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default:
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break
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}
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return .handled
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}
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extension MDMark {
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var color: Color {
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switch self {
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case .ok: Palette.ok
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case .warn: Palette.warn
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case .danger: Palette.danger
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case .muted: Palette.muted
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}
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}
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var tint: Color {
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switch self {
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case .ok: Palette.okTint
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case .warn: Palette.warnTint
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case .danger: Palette.dangerTint
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case .muted: Palette.surface
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}
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}
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}
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private let httpLink = Re(#"^https?://"#, caseless: true)
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private let taskHref = Re(#"^#/task/(\w+)(/\w+)?$"#)
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private let todoHref = Re(#"^#/todo/(\w+)/(.+)$"#)
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private let suggestHref = Re(#"^#/suggest/(\w+)/([^/]+)/(.+)$"#)
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@MainActor
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struct InlineRenderer {
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let store: Store
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let size: CGFloat
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let taskId: String?
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private struct Style {
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var bold = false
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var italic = false
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var link: URL?
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var color: Color?
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var small = false
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}
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func segments(_ items: [MDInline]) -> [MDSegment] {
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var out: [MDSegment] = []
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render(items, Style(), &out)
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return out
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}
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func text(_ items: [MDInline]) -> AttributedString {
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var out = AttributedString()
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for seg in segments(items) {
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if case .text(let a) = seg {
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out += a
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}
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}
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return out
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}
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private func run(_ s: String, _ style: Style) -> AttributedString {
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var a = AttributedString(s)
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a.font = Fonts.font(style.small ? 11 : size, weight: style.bold ? 700 : 400, italic: style.italic)
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a.mergeAttributes(try! AttributeContainer([.font: Fonts.ns(style.small ? 11 : size, weight: style.bold ? 700 : 400, italic: style.italic)], including: \.appKit))
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if let link = style.link {
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a.link = link
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}
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if let color = style.color {
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a.foregroundColor = color
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a.appKit.foregroundColor = NSColor(color)
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}
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return a
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}
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private func append(_ a: AttributedString, _ out: inout [MDSegment]) {
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if case .text(let prev) = out.last {
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out[out.count - 1] = .text(prev + a)
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return
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}
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out.append(.text(a))
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}
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private func render(_ items: [MDInline], _ style: Style, _ out: inout [MDSegment]) {
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for item in items {
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switch item {
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case .text(let t):
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append(run(t, style), &out)
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case .lineBreak:
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append(run("\n", style), &out)
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case .code(let c):
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var a = run(c, style)
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a.backgroundColor = Palette.surface
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a.appKit.backgroundColor = NSColor(Palette.surface)
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append(a, &out)
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case .strong(let inner):
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var s = style
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s.bold = true
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render(inner, s, &out)
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case .em(let inner):
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var s = style
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s.italic = true
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render(inner, s, &out)
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case .image(let src, let alt):
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if let source = worktreeImageSource(src, taskId) {
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out.append(.image(source, src: src))
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} else {
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link(src, [.text(alt.isEmpty ? src : alt)], style, &out)
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}
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case .link(let href, let inner):
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link(href, inner, style, &out)
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case .mark(let mark, let inner):
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var s = style
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s.color = mark.color
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render(inner, s, &out)
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}
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}
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}
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private func link(_ href: String, _ inner: [MDInline], _ style: Style, _ out: inout [MDSegment]) {
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var s = style
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if httpLink.test(href), let url = URL(string: href) {
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s.link = url
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s.color = Palette.accent
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render(inner, s, &out)
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return
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}
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if let m = taskHref.exec(href) {
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s.link = AppLink.task(m[1]!)
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s.color = store.taskColor(m[1]!) ?? Palette.accent
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render(inner, s, &out)
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return
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}
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if let m = todoHref.exec(href), let title = m[2]!.removingPercentEncoding {
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todo(m[1]!, title, nil, inner, style, &out)
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return
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}
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if let m = suggestHref.exec(href), let title = m[2]!.removingPercentEncoding, let brief = m[3]!.removingPercentEncoding {
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todo(m[1]!, title, brief, inner, style, &out)
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return
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}
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render(inner, style, &out)
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}
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private func todo(_ projectId: String, _ title: String, _ brief: String?, _ inner: [MDInline], _ style: Style, _ out: inout [MDSegment]) {
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let task = (store.tasks[projectId] ?? []).first { $0.status == .active && (brief == nil ? $0.todoItem == title : $0.title == title) }
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var s = style
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if let task {
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s.color = taskPalette[task.color]
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render(inner, s, &out)
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append(run(" ", style), &out)
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let state = store.currentSession(task.id)?.state
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var dot = Style(link: AppLink.task(task.id), color: state == .running ? Palette.ok : Palette.muted, small: true)
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append(run(state == .running ? "●" : "○", dot), &out)
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dot.color = Palette.muted
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append(run(" \(state?.rawValue ?? "no agent")", dot), &out)
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return
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}
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render(inner, style, &out)
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append(run(" ", style), &out)
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if store.todoStarting.contains("\(projectId)\n\(title)") {
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append(run("starting…", Style(color: Palette.muted, small: true)), &out)
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return
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}
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let link = { (discuss: Bool) in brief.map { AppLink.suggest(projectId, title, $0, discuss: discuss) } ?? AppLink.todo(projectId, title, discuss: discuss) }
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append(run("start", Style(link: link(false), color: Palette.accent, small: true)), &out)
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append(run(" ", style), &out)
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append(run("discuss", Style(link: link(true), color: Palette.accent, small: true)), &out)
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}
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}
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struct MDContext {
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var size: CGFloat = 13
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var color: Color = Palette.text
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var taskId: String?
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var choice: ((MDItem) -> AnyView)?
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}
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private enum MDRun {
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case flow([MDBlock])
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case block(MDBlock)
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}
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struct MarkdownView: View {
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let blocks: [MDBlock]
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var ctx = MDContext()
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@Environment(Store.self) private var store
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var body: some View {
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VStack(alignment: .leading, spacing: 8) {
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ForEach(Array(runs.enumerated()), id: \.offset) { _, run in
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switch run {
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case .flow(let blocks):
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FlowText(text: flow(blocks))
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case .block(let block):
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BlockView(block: block, ctx: ctx)
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}
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}
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}
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.frame(maxWidth: .infinity, alignment: .leading)
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}
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private func flow(_ blocks: [MDBlock]) -> NSAttributedString {
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var builder = FlowBuilder(store: store, ctx: ctx)
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return builder.build(blocks)
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}
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private var runs: [MDRun] {
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var out: [MDRun] = []
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for block in blocks {
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if !flows(block) {
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out.append(.block(block))
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continue
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}
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if case .flow(let prev) = out.last {
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out[out.count - 1] = .flow(prev + [block])
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continue
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}
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out.append(.flow([block]))
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}
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return out
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}
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private func flows(_ block: MDBlock) -> Bool {
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switch block {
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case .paragraph(let inlines), .heading(_, let inlines):
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return !hasImage(inlines)
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case .list(_, _, let items, _):
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if ctx.choice != nil && items.contains(where: { $0.choice != nil }) {
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return false
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}
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return items.allSatisfy { !hasImage($0.inline) && $0.blocks.allSatisfy(flows) }
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default:
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return false
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}
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}
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private func hasImage(_ inlines: [MDInline]) -> Bool {
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inlines.contains { item in
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switch item {
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case .image:
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true
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case .strong(let inner), .em(let inner), .link(_, let inner), .mark(_, let inner):
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hasImage(inner)
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default:
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false
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}
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}
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}
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}
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@MainActor
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private struct FlowBuilder {
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let store: Store
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let ctx: MDContext
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private var out = NSMutableAttributedString()
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private var gap: CGFloat = 0
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init(store: Store, ctx: MDContext) {
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self.store = store
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self.ctx = ctx
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}
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mutating func build(_ blocks: [MDBlock]) -> NSAttributedString {
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self.blocks(blocks, 0)
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if out.length > 0 {
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out.deleteCharacters(in: NSRange(location: out.length - 1, length: 1))
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}
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return out
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}
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private mutating func blocks(_ blocks: [MDBlock], _ indent: CGFloat) {
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for (i, block) in blocks.enumerated() {
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if i > 0 {
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gap = 8
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}
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self.block(block, indent)
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}
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}
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private mutating func block(_ block: MDBlock, _ indent: CGFloat) {
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switch block {
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case .paragraph(let inlines):
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para(inline(inlines, ctx.size), indent, indent)
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case .heading(let level, let inlines):
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gap += 4
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para(inline([.strong(inlines)], level == 3 ? 14 : 13), indent, indent)
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case .list(let ordered, let start, let items, _):
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let font = Fonts.ns(ctx.size)
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for (n, item) in items.enumerated() {
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if n > 0 {
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gap = 2
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}
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let marker = ordered ? "\(start + n)." : "•"
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let inner = indent + ceil((marker as NSString).size(withAttributes: [.font: font]).width) + 6
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let line = NSMutableAttributedString(string: "\(marker)\t", attributes: [.font: font])
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line.append(inline(item.inline, ctx.size))
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para(line, indent, inner)
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gap = 6
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blocks(item.blocks, inner)
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}
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default:
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break
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}
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}
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private func inline(_ inlines: [MDInline], _ size: CGFloat) -> NSAttributedString {
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let a = InlineRenderer(store: store, size: size, taskId: ctx.taskId).text(inlines)
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return try! NSAttributedString(a, including: \.appKit)
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}
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private mutating func para(_ a: NSAttributedString, _ first: CGFloat, _ head: CGFloat) {
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let s = NSMutableAttributedString(attributedString: a)
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s.append(NSAttributedString(string: "\n", attributes: [.font: Fonts.ns(ctx.size)]))
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let all = NSRange(location: 0, length: s.length)
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let color = NSColor(ctx.color)
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unsafe s.enumerateAttribute(.foregroundColor, in: all) { value, range, _ in
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if value == nil {
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s.addAttribute(.foregroundColor, value: color, range: range)
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}
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}
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let lead = (s.string as NSString).range(of: "\n").location + 1
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s.addAttribute(.paragraphStyle, value: style(first, head, 0), range: all)
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s.addAttribute(.paragraphStyle, value: style(first, head, gap), range: NSRange(location: 0, length: lead))
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out.append(s)
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gap = 0
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}
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private func style(_ first: CGFloat, _ head: CGFloat, _ before: CGFloat) -> NSParagraphStyle {
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let p = NSMutableParagraphStyle()
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p.lineSpacing = 3
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p.paragraphSpacingBefore = before
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p.firstLineHeadIndent = first
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p.headIndent = head
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p.tabStops = [NSTextTab(textAlignment: .left, location: head)]
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return p
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}
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}
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private final class FlowTextView: NSTextView {
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override func resignFirstResponder() -> Bool {
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setSelectedRange(NSRange(location: 0, length: 0))
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return super.resignFirstResponder()
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}
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}
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private struct FlowText: NSViewRepresentable {
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let text: NSAttributedString
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func makeNSView(context: Context) -> FlowTextView {
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let v = FlowTextView(usingTextLayoutManager: false)
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v.isEditable = false
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v.isSelectable = true
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v.drawsBackground = false
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v.isVerticallyResizable = false
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v.isHorizontallyResizable = false
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v.textContainerInset = .zero
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unsafe v.textContainer!.lineFragmentPadding = 0
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unsafe v.textContainer!.widthTracksTextView = true
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v.linkTextAttributes = [.cursor: NSCursor.pointingHand]
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v.delegate = context.coordinator
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return v
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}
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func updateNSView(_ v: FlowTextView, context: Context) {
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context.coordinator.openURL = context.environment.openURL
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if unsafe v.textStorage!.isEqual(to: text) {
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return
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}
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let selected = v.selectedRanges
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unsafe v.textStorage!.setAttributedString(text)
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if selected.allSatisfy({ NSMaxRange($0.rangeValue) <= text.length }) {
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v.selectedRanges = selected
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}
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}
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func sizeThatFits(_ proposal: ProposedViewSize, nsView v: FlowTextView, context: Context) -> CGSize? {
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let width = proposal.width.flatMap { $0.isFinite ? $0 : nil }
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let storage = NSTextStorage(attributedString: text)
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let layout = NSLayoutManager()
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let container = NSTextContainer(size: CGSize(width: width ?? .greatestFiniteMagnitude, height: .greatestFiniteMagnitude))
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container.lineFragmentPadding = 0
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layout.addTextContainer(container)
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storage.addLayoutManager(layout)
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layout.ensureLayout(for: container)
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let used = layout.usedRect(for: container)
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return CGSize(width: width ?? ceil(used.width), height: ceil(used.height))
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}
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func makeCoordinator() -> Coordinator {
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Coordinator()
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}
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final class Coordinator: NSObject, NSTextViewDelegate {
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var openURL: OpenURLAction?
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func textView(_ textView: NSTextView, clickedOnLink link: Any, at charIndex: Int) -> Bool {
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guard let url = link as? URL, let openURL else {
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return false
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}
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openURL(url)
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return true
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}
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}
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}
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struct InlineView: View {
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let inlines: [MDInline]
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let ctx: MDContext
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@Environment(Store.self) private var store
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var body: some View {
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let segs = InlineRenderer(store: store, size: ctx.size, taskId: ctx.taskId).segments(inlines)
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VStack(alignment: .leading, spacing: 4) {
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ForEach(Array(segs.enumerated()), id: \.offset) { _, seg in
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switch seg {
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case .text(let a):
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Text(a)
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.font(Fonts.font(ctx.size))
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.foregroundStyle(ctx.color)
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.lineSpacing(3)
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.textSelection(.enabled)
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.fixedSize(horizontal: false, vertical: true)
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case .image(let source, let src):
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ByreImage(source: source, src: src)
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}
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}
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}
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}
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}
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private struct BlockView: View {
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let block: MDBlock
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let ctx: MDContext
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var body: some View {
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switch block {
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case .paragraph(let inlines):
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InlineView(inlines: inlines, ctx: ctx)
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case .heading(let level, let inlines):
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InlineView(inlines: [.strong(inlines)], ctx: MDContext(size: level == 3 ? 14 : 13, color: ctx.color, taskId: ctx.taskId))
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.padding(.top, 4)
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case .rule:
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Rectangle()
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.fill(Palette.border)
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.frame(height: 1)
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.padding(.vertical, 2)
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case .quote(let blocks):
|
|
MarkdownView(blocks: blocks, ctx: MDContext(size: ctx.size, color: Palette.muted, taskId: ctx.taskId))
|
|
.padding(.leading, 13)
|
|
.overlay(alignment: .leading) {
|
|
Rectangle().fill(Palette.border).frame(width: 3)
|
|
}
|
|
case .list(let ordered, let start, let items, let grid):
|
|
ListBlock(ordered: ordered, start: start, items: items, grid: grid, ctx: ctx)
|
|
case .code(let code):
|
|
Copyable(text: code) {
|
|
ScrollView(.horizontal) {
|
|
Text(verbatim: code)
|
|
.font(Fonts.font(ctx.size))
|
|
.foregroundStyle(Palette.text)
|
|
.textSelection(.enabled)
|
|
.fixedSize()
|
|
.padding(.horizontal, 8)
|
|
.padding(.vertical, 6)
|
|
}
|
|
.scrollBounceBehavior(.basedOnSize)
|
|
.frame(maxWidth: .infinity, alignment: .leading)
|
|
.background(Palette.surface, in: RoundedRectangle(cornerRadius: 6))
|
|
.overlay(RoundedRectangle(cornerRadius: 6).stroke(Palette.border))
|
|
}
|
|
case .diff(let lines):
|
|
DiffBlock(lines: lines, size: ctx.size)
|
|
case .details(let summary, let body):
|
|
DetailsBlock(summary: summary, blocks: body, ctx: ctx)
|
|
case .diagram(let source):
|
|
DiagramView(source: source)
|
|
case .table(let head, let rows):
|
|
TableBlock(head: head, rows: rows, ctx: ctx)
|
|
}
|
|
}
|
|
}
|
|
|
|
private struct ListBlock: View {
|
|
let ordered: Bool
|
|
let start: Int
|
|
let items: [MDItem]
|
|
let grid: Bool
|
|
let ctx: MDContext
|
|
|
|
var body: some View {
|
|
if grid, let choice = ctx.choice {
|
|
LazyVGrid(columns: Array(repeating: GridItem(.flexible(), spacing: 8, alignment: .top), count: 4), spacing: 8) {
|
|
ForEach(Array(items.enumerated()), id: \.offset) { _, item in
|
|
choice(item)
|
|
}
|
|
}
|
|
} else {
|
|
VStack(alignment: .leading, spacing: 2) {
|
|
ForEach(Array(items.enumerated()), id: \.offset) { n, item in
|
|
if item.choice != nil, let choice = ctx.choice {
|
|
choice(item)
|
|
} else {
|
|
HStack(alignment: .firstTextBaseline, spacing: 6) {
|
|
Text(verbatim: ordered ? "\(start + n)." : "•")
|
|
.font(Fonts.font(ctx.size))
|
|
.foregroundStyle(ctx.color)
|
|
ItemBody(item: item, ctx: ctx)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
struct ItemBody: View {
|
|
let item: MDItem
|
|
let ctx: MDContext
|
|
|
|
var body: some View {
|
|
VStack(alignment: .leading, spacing: 6) {
|
|
if !item.inline.isEmpty {
|
|
InlineView(inlines: item.inline, ctx: ctx)
|
|
}
|
|
if !item.blocks.isEmpty {
|
|
MarkdownView(blocks: item.blocks, ctx: ctx)
|
|
}
|
|
}
|
|
.frame(maxWidth: .infinity, alignment: .leading)
|
|
}
|
|
}
|
|
|
|
private struct DiffBlock: View {
|
|
let lines: [String]
|
|
let size: CGFloat
|
|
|
|
var body: some View {
|
|
Copyable(text: lines.map { $0 + "\n" }.joined()) {
|
|
VStack(alignment: .leading, spacing: 0) {
|
|
ForEach(Array(lines.enumerated()), id: \.offset) { _, line in
|
|
Text(verbatim: line.isEmpty ? " " : line)
|
|
.font(Fonts.font(size))
|
|
.foregroundStyle(line.hasPrefix("@@") ? Palette.muted : Palette.text)
|
|
.textSelection(.enabled)
|
|
.frame(maxWidth: .infinity, alignment: .leading)
|
|
.padding(.horizontal, 8)
|
|
.background(background(line))
|
|
}
|
|
}
|
|
.padding(.vertical, 6)
|
|
.background(Palette.surface, in: RoundedRectangle(cornerRadius: 6))
|
|
.overlay(RoundedRectangle(cornerRadius: 6).stroke(Palette.border))
|
|
}
|
|
}
|
|
|
|
private func background(_ l: String) -> Color {
|
|
if l.hasPrefix("@@") {
|
|
return Palette.surface
|
|
}
|
|
if l.hasPrefix("+++") || l.hasPrefix("---") {
|
|
return .clear
|
|
}
|
|
if l.hasPrefix("+") {
|
|
return Palette.ok.opacity(0.14)
|
|
}
|
|
if l.hasPrefix("-") {
|
|
return Palette.danger.opacity(0.14)
|
|
}
|
|
return .clear
|
|
}
|
|
}
|
|
|
|
private struct DetailsBlock: View {
|
|
let summary: [MDInline]
|
|
let blocks: [MDBlock]
|
|
let ctx: MDContext
|
|
@ViewState private var open = false
|
|
|
|
var body: some View {
|
|
VStack(alignment: .leading, spacing: 4) {
|
|
Button {
|
|
open.toggle()
|
|
} label: {
|
|
HStack(alignment: .firstTextBaseline, spacing: 4) {
|
|
Text(open ? "▾" : "▸")
|
|
.foregroundStyle(Palette.accent)
|
|
InlineView(inlines: summary, ctx: MDContext(size: ctx.size, color: Palette.accent, taskId: ctx.taskId))
|
|
}
|
|
.contentShape(Rectangle())
|
|
}
|
|
.buttonStyle(.plain)
|
|
if open {
|
|
MarkdownView(blocks: blocks, ctx: ctx)
|
|
.padding(.leading, 11)
|
|
.overlay(alignment: .leading) {
|
|
Rectangle().fill(Palette.border).frame(width: 1)
|
|
}
|
|
}
|
|
}
|
|
.padding(.vertical, 2)
|
|
}
|
|
}
|
|
|
|
private struct TableBlock: View {
|
|
let head: [[MDInline]]
|
|
let rows: [[[MDInline]]]
|
|
let ctx: MDContext
|
|
|
|
var body: some View {
|
|
Grid(alignment: .topLeading, horizontalSpacing: 0, verticalSpacing: 0) {
|
|
GridRow {
|
|
ForEach(Array(head.enumerated()), id: \.offset) { _, cell in
|
|
cellView([.strong(cell)])
|
|
.background(tint(cell) ?? Palette.surface)
|
|
}
|
|
}
|
|
ForEach(Array(rows.enumerated()), id: \.offset) { _, row in
|
|
GridRow {
|
|
ForEach(Array(row.enumerated()), id: \.offset) { _, cell in
|
|
cellView(cell)
|
|
.background(tint(cell) ?? .clear)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
.overlay(Rectangle().stroke(Palette.border))
|
|
}
|
|
|
|
private func tint(_ cell: [MDInline]) -> Color? {
|
|
guard case .mark(let mark, _) = cell.first else {
|
|
return nil
|
|
}
|
|
return mark.tint
|
|
}
|
|
|
|
private func cellView(_ cell: [MDInline]) -> some View {
|
|
InlineView(inlines: cell, ctx: ctx)
|
|
.padding(.horizontal, 8)
|
|
.padding(.vertical, 3)
|
|
.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading)
|
|
.overlay(Rectangle().stroke(Palette.border, lineWidth: 0.5))
|
|
}
|
|
}
|