╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ ui.zig ───────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
🬐 🬠 🬞🬂🬏 🬟 🬑 🬟 🬑 ╭master╮ master haxy: 🬋🬋🬋 🬋🬋🬋 🬋 🬋 │files │ commits refs discuss issues patches new login 🬐 🬠 🬐 🬠 🬑 🬟 🬰 ╰──────╯ (716) user
╭ find file ─ ─ ─ ─ ─ ─ ─ ─ ─ ─╮ ╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─╮ │ │ │http│ ssh │ │ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─╯ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─╯
.. embed/ event/ test/ ui/ command.zig diff3.zig event.zig find.zig fork.zig lib.zig main.zig main_wasm.zig markdown.zig notify.zig patch.zig progress.zig push.zig search.zig search_commit.zig search_thread.zig serve.zig serve_common.zig serve_http.zig serve_ssh.zig serve_ssh_protocol.zig test.zig testnet.zig try.zig ╭─────────────────────────────────╮ │ui.zig │ ╰─────────────────────────────────╯ web.zig
2447 } 2448 }; 2449 2450 pub const UserFailure = enum { 2451 required_name, 2452 invalid_name, 2453 name_taken, 2454 required_email, 2455 email_taken, 2456 required_password, 2457 password_mismatch, 2458 wrong_password, 2459 2460 pub fn fromError(err: anyerror) ?UserFailure { 2461 return switch (err) { 2462 error.NameEmpty => .required_name, 2463 error.NameTooShort, error.NameTooLong, error.InvalidName => .invalid_name, 2464 error.NameTaken => .name_taken, 2465 error.EmailEmpty => .required_email, 2466 error.EmailTaken => .email_taken, 2467 error.PasswordEmpty => .required_password, 2468 error.PasswordMismatch => .password_mismatch, 2469 error.WrongPassword => .wrong_password, 2470 else => null, 2471 }; 2472 } 2473 }; 2474 2475 login: struct { 2476 failure: LoginFailure, 2477 username: []const u8, 2478 }, 2479 user: struct { 2480 failure: UserFailure, 2481 // passwords are never retained 2482 fields: struct { 2483 name: []const u8, 2484 email: []const u8, 2485 }, 2486 }, 2487 user_settings: struct { 2488 failure: UserFailure, 2489 // passwords are never retained 2490 fields: struct { email: []const u8 }, 2491 }, 2492 user_keys: struct { 2493 failure: KeyFailure, 2494 key: []const u8, 2495 }, 2496 repo: struct { 2497 failure: RepoFailure, 2498 fields: struct { 2499 name: []const u8, 2500 description: []const u8, 2501 hash: hash.HashKind, 2502 access: evt.Repo.Access, 2503 }, 2504 }, 2505 repo_settings: struct { 2506 failure: RepoFailure, 2507 fields: struct { 2508 name: []const u8, 2509 description: []const u8, 2510 access: evt.Repo.Access, 2511 discuss_role: ?evt.Repo.Role, 2512 issue_role: ?evt.Repo.Role, 2513 patch_role: ?evt.Repo.Role, 2514 }, 2515 }, 2516 repo_members: struct { 2517 failure: MembersFailure, 2518 name: []const u8, 2519 }, 2520 repo_branches: struct { 2521 failure: BranchesFailure, 2522 name: []const u8, 2523 }, 2524 assignment: struct { 2525 failure: AssignmentFailure, 2526 text: []const u8, 2527 }, 2528 delete: struct { 2529 failure: DeleteFailure, 2530 // a page can hold two delete forms, so this names the failed one 2531 target: std.meta.Tag(Delete.Target), 2532 // the password is never retained 2533 confirm: []const u8, 2534 }, 2535 issue: struct { 2536 failure: ThreadFailure, 2537 fields: ?struct { 2538 title: []const u8, 2539 labels: []const u8, 2540 description: []const u8, 2541 } = null, 2542 }, 2543 patch: struct { 2544 failure: PatchFailure, 2545 fields: ?struct { 2546 title: []const u8, 2547 labels: []const u8, 2548 description: []const u8, 2549 target_branch: []const u8, 2550 source_branch: []const u8 = "", 2551 source_kind: Repo.Patches.Source.Kind = .fork, 2552 } = null, 2553 }, 2554 discussion: struct { 2555 failure: ThreadFailure, 2556 fields: ?struct { 2557 title: []const u8, 2558 labels: []const u8, 2559 description: []const u8, 2560 } = null, 2561 }, 2562 }; 2563 2564 const Self = @This(); 2565 2566 // serializable data sent down to web client 2567 pub const Data = struct { 2568 // the server's reference time for relative timestamps on this page. 2569 now: i64 = 0, 2570 user_id: ?[]const u8 = null, 2571 // the logged-in user's name and email, for the views that show them 2572 user_name: ?[]const u8 = null, 2573 user_email: ?[]const u8 = null, 2574 // the logged-in user's unread notifications, refreshed on each page build 2575 unread_notifs: u64 = 0, 2576 // a failed form retained long enough to render it for correction 2577 form_feedback: ?FormFeedback = null, 2578 // a transient local event-sync error 2579 sync_failure: ?[]const u8 = null, 2580 // a failed terminal undo retained on the current tab 2581 undo_failure: ?[]const u8 = null, 2582 current_page: RoutablePage = .default, 2583 // the selected ANSI art. the server serializes one image for WASM so 2584 // the browser does not need the whole build-generated collection. 2585 ansi_art: []const u8 = "", 2586 // where git clones and pushes go. absent in local mode, where remote 2587 // urls are not shown. 2588 git_http_url: ?[]const u8 = null, 2589 git_ssh_url: ?[]const u8 = null, 2590 git_ssh_prefix: []const u8 = "", 2591 // whether this session views a local repo or the server. unlike `local` 2592 // (the host-side filesystem source) this travels in the snapshot, so 2593 // the wasm side also parses elided link urls and hides the multi-user 2594 // chrome. 2595 host_kind: evt.HostKind = .server, 2596 }; 2597 2598 pub fn init( 2599 arena: *std.heap.ArenaAllocator, 2600 repo: *rp.Repo(.xit, evt.admin_repo_opts), 2601 data: Data, 2602 ) !Self { 2603 var session = Self{ 2604 .data = data, 2605 .arena = arena, 2606 // until a host swaps in a page-scoped arena (Nav does this), page 2607 // allocations land in the session arena. on the web path that's the 2608 // intended behavior, since the whole arena is per-request. 2609 .page_arena = arena, 2610 .admin_repo = repo, 2611 .haxy_moment = try evt.currentMoment(evt.admin_repo_opts, repo), 2612 }; 2613 try session.loadUser(); 2614 return session; 2615 } 2616 2617 // web views share the page's reference time; terminals use the live clock. 2618 pub fn nowSeconds(self: *const Self) !i64 { 2619 if (builtin.target.cpu.arch == .wasm32 or !self.is_terminal) return self.data.now; 2620 const io = self.io orelse return error.NoClock; 2621 return std.math.cast(i64, std.Io.Timestamp.now(io, .real).toSeconds()) orelse error.TimestampOutOfRange; 2622 } 2623 2624 // load the logged-in user's name and persisted preferences from the db 2625 pub fn loadUser(self: *Self) !void { 2626 const user_id = self.userId() orelse return; 2627 const moment = self.haxy_moment orelse return; 2628 const user = (try activeUser(moment, self.arena, user_id)) orelse return self.logOut(); 2629 self.data.user_name = user.event.name; 2630 self.data.user_email = user.event.email; 2631 } 2632 2633 // forget the logged-in user, on a logout or once their account is removed 2634 pub fn logOut(self: *Self) void { 2635 self.data.user_id = null; 2636 self.data.user_name = null; 2637 self.data.user_email = null; 2638 } 2639 2640 // log in as the account the session's ssh key last logged into with a 2641 // password, while that account still holds the key 2642 pub fn logInWithSshKey(self: *Self) !void { 2643 const key = self.ssh_key orelse return; 2644 const admin_repo = self.admin_repo orelse return; 2645 const moment = self.haxy_moment orelse return; 2646 const fingerprint = evt.User.fingerprintOfKey(key) orelse return; 2647 const user_id = (try evt.readLoginKeyUser(try admin_repo.core.latestMoment(), &fingerprint)) orelse return; 2648 if (!try evt.User.holdsKey(evt.AdminDB, evt.admin_repo_opts.hash, moment, self.arena, &user_id, &fingerprint)) return; 2649 self.data.user_id = try self.arena.allocator().dupe(u8, &user_id); 2650 try self.loadUser(); 2651 } 2652 2653 // add the session's ssh key to the user who just logged in with a 2654 // password, which proves they hold it, and let it log them in from now on 2655 pub fn rememberSshKey(self: *Self) !void { 2656 if (builtin.target.cpu.arch == .wasm32) return; 2657 const key = self.ssh_key orelse return; 2658 const io = self.io orelse return; 2659 const users_dir = self.users_dir orelse return; 2660 const admin_repo = self.admin_repo orelse return; 2661 const user_id = self.userId() orelse return; 2662 const fingerprint = evt.User.fingerprintOfKey(key) orelse return; 2663 const allocator = self.arena.child_allocator; 2664 2665 const day = (std.time.epoch.EpochSeconds{ .secs = @intCast(std.Io.Timestamp.now(io, .real).toSeconds()) }).getEpochDay().calculateYearDay(); 2666 const month = day.calculateMonthDay(); 2667 const line = try std.fmt.allocPrint(allocator, "{s} added {d:0>4}-{d:0>2}-{d:0>2} via login", .{ key, day.year, month.month.numeric(), month.day_index + 1 }); 2668 defer allocator.free(line); 2669 evt.addUserKey(io, allocator, users_dir, admin_repo, &user_id, line) catch |err| switch (err) { 2670 // it's already there, or there's no room for it 2671 error.KeyAdded, error.TooManyKeys => {}, 2672 else => return err, 2673 }; 2674 try evt.setLoginKey(io, admin_repo, &fingerprint, &user_id, .trust); 2675 self.haxy_moment = try evt.currentMoment(evt.admin_repo_opts, admin_repo); 2676 } 2677 2678 // stop the session's ssh key logging the user in, on a logout 2679 pub fn forgetSshKey(self: *Self) !void { 2680 if (builtin.target.cpu.arch == .wasm32) return; 2681 const key = self.ssh_key orelse return; 2682 const io = self.io orelse return; 2683 const admin_repo = self.admin_repo orelse return; 2684 const user_id = self.userId() orelse return; 2685 const fingerprint = evt.User.fingerprintOfKey(key) orelse return; 2686 try evt.setLoginKey(io, admin_repo, &fingerprint, &user_id, .forget); 2687 } 2688 2689 pub fn userId(self: *const Self) ?[evt.event_id_size]u8 { 2690 const bytes = self.data.user_id orelse return null; 2691 if (bytes.len != evt.event_id_size) return null; 2692 var id: [evt.event_id_size]u8 = undefined; 2693 @memcpy(&id, bytes); 2694 return id; 2695 } 2696 2697 pub fn formFeedback(self: *const Self, comptime tag: std.meta.Tag(FormFeedback)) ?@FieldType(FormFeedback, @tagName(tag)) { 2698 const feedback = self.data.form_feedback orelse return null; 2699 if (std.meta.activeTag(feedback) != tag) return null; 2700 return @field(feedback, @tagName(tag)); 2701 } 2702 2703 pub fn clearFormFeedback(self: *Self) void { 2704 self.data.form_feedback = null; 2705 } 2706 2707 // the actor for a write to the repo `identity` names, or null when the 2708 // session may not write there with at least `min_role` or in the 2709 // `thread_kind` tab. local mode always writes. 2710 pub fn authorize(self: *Self, identity: []const u8, min_role: evt.Repo.Role, thread_kind: ?evt.EventKind) !?Actor { 2711 if (self.data.host_kind == .local) { 2712 const author = blk: { 2713 const src = self.local orelse break :blk local_author_fallback; 2714 const io = self.io orelse break :blk local_author_fallback; 2715 break :blk try localAuthor(src, io, self.page_arena.child_allocator, self.page_arena); 2716 }; 2717 return .{ .author = author, .role = .owner }; 2718 } 2719 const user_id = self.userId() orelse return null; 2720 // the session's moment predates this input, so read the roles afresh 2721 const admin_repo = self.admin_repo orelse return null; 2722 const io = self.io orelse return null; 2723 const users_dir = self.users_dir orelse return null; 2724 const moment = try evt.currentMoment(evt.admin_repo_opts, admin_repo); 2725 return switch (try authorizeUser(io, moment, self.page_arena, users_dir, user_id, identity, min_role, thread_kind)) { 2726 .actor => |actor| actor, 2727 .login_required, .repo_not_found, .forbidden => null, 2728 }; 2729 } 2730 2731 // where this session's event writes go. a server session always has a users dir and an admin repo 2732 pub fn eventHost(self: *const Self) evt.Host { 2733 return switch (self.data.host_kind) { 2734 .local => .local, 2735 .server => .{ .server = .{ 2736 .users_dir = self.users_dir orelse unreachable, 2737 .admin_repo_path = (self.admin_repo orelse unreachable).core.work_path, 2738 } }, 2739 }; 2740 } 2741 2742 // reload the moment from the admin repo and log out a removed user 2743 pub fn reloadMoment(self: *Self, allocator: std.mem.Allocator, repo: *rp.Repo(.xit, evt.admin_repo_opts)) !void { 2744 const moment = try evt.currentMoment(evt.admin_repo_opts, repo); 2745 self.haxy_moment = moment; 2746 2747 const user_id = self.userId() orelse return; 2748 var arena = std.heap.ArenaAllocator.init(allocator); 2749 defer arena.deinit(); 2750 if (try activeUser(moment, &arena, user_id) == null) self.logOut(); 2751 } 2752 2753 // request a forward navigation to `route`; the host consumes next_page 2754 // (Nav.sync on the terminal, the wasm tick on the web). 2755 pub fn navigate(self: *Session, route: RoutablePage) !void { 2756 self.clearFormFeedback(); 2757 self.next_page = route; 2758 } 2759 }; 2760 2761 pub fn run(io: std.Io, allocator: std.mem.Allocator, session: *Session, repo_maybe: ?*rp.Repo(.xit, evt.admin_repo_opts)) !void { 2762 var nav = try Nav.init(allocator, session); 2763 defer nav.deinit(allocator); 2764 2765 var terminal = try term.Terminal.init(io, allocator); 2766 terminal.render_state.no_color = !session.color; 2767 var terminal_live = true; 2768 defer if (terminal_live) terminal.deinit(io); 2769 2770 // set term as active so it will be properly cooked 2771 // when a panic/segfault happens 2772 term.setActive(&terminal); 2773 defer term.setActive(null); 2774 2775 try terminal.queryBackground(); 2776 2777 while (!terminal.shouldQuit()) { 2778 const grid_changed = try terminal.render(&nav.root); 2779 2780 // process any inputs. 2781 // 2782 // if the grid didn't change, then first do a blocking 2783 // read, so the thread will sleep until further input. 2784 // after that, all remaining reads are non-blocking so 2785 // we can process the rest of the queued inputs. 2786 // 2787 // if the grid *did* change, then only do non-blocking 2788 // reads. we do not want to sleep the thread because 2789 // there may be an animation that requires more looping. 2790 var blocking = !grid_changed; 2791 while (try terminal.readKey(io, blocking)) |key| { 2792 blocking = false; 2793 try inputKey(allocator, &nav.root, key, session); 2794 } 2795 2796 if (session.host_request) |request| { 2797 session.host_request = null; 2798 switch (request) { 2799 .show_copyable_text => |copyable_text| { 2800 term.setActive(null); 2801 terminal.deinit(io); 2802 terminal_live = false; 2803 showCopyableText(io, copyable_text) catch |show_err| { 2804 terminal = try term.Terminal.init(io, allocator); 2805 terminal_live = true; 2806 term.setActive(&terminal); 2807 return show_err; 2808 }; 2809 terminal = try term.Terminal.init(io, allocator); 2810 terminal.render_state.no_color = !session.color; 2811 terminal_live = true; 2812 term.setActive(&terminal); 2813 }, 2814 .undo => |target| Repo.Undo.handleRequest(allocator, session, target), 2815 .sync_events => { 2816 try nav.root.build(allocator, .{ 2817 .min_size = .{ .width = null, .height = null }, 2818 .max_size = .{ .width = terminal.size.width, .height = terminal.size.height }, 2819 }, nav.root.getFocus()); 2820 _ = try terminal.render(&nav.root); 2821 try Repo.Events.performSync(allocator, session); 2822 }, 2823 } 2824 } 2825 2826 // reload so the next navigation builds its page from the current moment 2827 if (repo_maybe) |repo| try session.reloadMoment(allocator, repo); 2828 2829 // reconcile navigation: forward to a new page, or back on escape. 2830 // the terminal background can change at any time, so recheck it on each page 2831 if (try nav.sync(allocator, session)) try terminal.queryBackground(); 2832 2833 // the quit button (on the quit tab) asks the host to tear down. 2834 if (session.quit_requested) terminal.requestQuit(); 2835 2836 try nav.root.build(allocator, .{ 2837 .min_size = .{ .width = null, .height = null }, 2838 .max_size = .{ .width = terminal.size.width, .height = terminal.size.height }, 2839 }, nav.root.getFocus()); 2840 } 2841 } 2842 2843 fn showCopyableText(io: std.Io, copyable_text: []const u8) !void { 2844 const tty: ?std.Io.File = if (builtin.target.os.tag == .windows) 2845 null 2846 else 2847 try std.Io.Dir.cwd().openFile(io, "/dev/tty", .{ .mode = .read_write }); 2848 defer if (tty) |file| file.close(io); 2849 2850 const input = if (tty) |file| file else std.Io.File.stdin(); 2851 const output = if (tty) |file| file else std.Io.File.stdout(); 2852 2853 var write_buf: [1024]u8 = undefined; 2854 var writer = output.writer(io, &write_buf); 2855 try writer.interface.print("\x1b[2J\x1b[Hcopy the following text and then press enter to go back:\r\n\r\n{s}\r\n", .{copyable_text}); 2856 try writer.interface.flush(); 2857 2858 var read_buf: [1]u8 = undefined; 2859 var reader = input.reader(io, &read_buf); 2860 while (true) { 2861 const byte = try reader.interface.takeByte(); 2862 if (byte == '\r' or byte == '\n') return; 2863 } 2864 } 2865 2866 pub fn inputKey(allocator: std.mem.Allocator, root: *Widget, key: Key, session: *Session) !void { 2867 const root_focus = root.getFocus(); 2868 const focused_before = root_focus.grandchild_id; 2869 var activate_in_page_link = false; 2870 switch (key) { 2871 // request a navigation pop; the host's Nav.sync goes back a page, or 2872 // quits when there's no history left. 2873 .escape => { 2874 session.back = .requested; 2875 return; 2876 }, 2877 .ctrl => |letter| switch (letter) { 2878 'r' => { 2879 session.refresh_requested = true; 2880 return; 2881 }, 2882 else => try root.input(allocator, key, root_focus), 2883 }, 2884 .enter => { 2885 if (root_focus.grandchild_id) |gid| { 2886 // follow a cross-page link 2887 if (crossPageLink(root_focus, gid, session.data)) |route| { 2888 return session.navigate(route); 2889 } 2890 if (rawLink(root_focus, gid)) |url| return requestRawLink(session, url); 2891 } 2892 activate_in_page_link = true; 2893 try root.input(allocator, key, root_focus); 2894 }, 2895 .mouse => |mouse| { 2896 if (mouse.button == .left) { 2897 if (cellPageLink(root, mouse.x, mouse.y, session.data)) |route| return session.navigate(route); 2898 if (root_focus.hitTest(mouse.x, mouse.y)) |hit| { 2899 const focus_id = hit.id; 2900 if (hit.kind == .background) { 2901 root_focus.setFocus(focus_id); 2902 return; 2903 } 2904 if (widget.isBackButton((root_focus.children.get(focus_id) orelse return).focus)) { 2905 if (session.back == .available) session.back = .requested; 2906 return; 2907 } 2908 // follow a cross-page link 2909 if (crossPageLink(root_focus, focus_id, session.data)) |route| { 2910 return session.navigate(route); 2911 } 2912 if (currentPageLink(root_focus, focus_id, session.data)) return; 2913 if (rawLink(root_focus, focus_id)) |url| { 2914 if (!mouse.ctrl) try requestRawLink(session, url); 2915 return; 2916 } 2917 root_focus.setFocus(focus_id); 2918 activate_in_page_link = true; 2919 } 2920 // forward the press into the widget tree so buttons (and any 2921 // future click-aware widgets) can react. widgets that don't 2922 // care about presses ignore it. 2923 try root.input(allocator, key, root_focus); 2924 } else { 2925 try root.input(allocator, key, root_focus); 2926 } 2927 }, 2928 .event => |event| switch (event) { 2929 .background => |rgb| session.terminal_background = rgb, 2930 .resize => try root.input(allocator, key, root_focus), 2931 }, 2932 // a scroll tick goes to the pane under the pointer, focusing it first. 2933 // from outside any pane (the tabs, a sub-header) or from a text input 2934 // it moves like the arrows instead, so scrolling up from a search box 2935 // reaches the header and stops there. 2936 .scroll_up, .scroll_down => |position| { 2937 if (focusedPane(root_focus)) |pane| if (scrollUnder(root_focus, position)) |under| { 2938 if (under != pane) root_focus.setFocus(under); 2939 }; 2940 try root.input(allocator, key, root_focus); 2941 }, 2942 else => try root.input(allocator, key, root_focus), 2943 } 2944 2945 const focused_after = root_focus.grandchild_id; 2946 if (!activate_in_page_link and focused_before == focused_after) return; 2947 const focus_id = focused_after orelse return; 2948 if (inPageLink(root_focus, focus_id, session.data)) |route| session.data.current_page = route; 2949 } 2950 2951 // the innermost vertically scrolling widget laid out under `position` 2952 fn scrollUnder(root_focus: *const Focus, position: xitui.input.Position) ?usize { 2953 var found: ?usize = null; 2954 var found_area: usize = std.math.maxInt(usize); 2955 var iter = root_focus.children.iterator(); 2956 while (iter.next()) |entry| { 2957 const info = entry.value_ptr.focus.scroll orelse continue; 2958 if (info.direction == .horiz) continue; 2959 const r = entry.value_ptr.rect; 2960 if (position.x < r.x or position.y < r.y or position.x >= r.x + r.size.width or position.y >= r.y + r.size.height) continue; 2961 // a nested scroll lies within its parent, so the smallest is innermost 2962 const area = r.size.width * r.size.height; 2963 if (area < found_area) { 2964 found = entry.key_ptr.*; 2965 found_area = area; 2966 } 2967 } 2968 return found; 2969 } 2970 2971 // the innermost vertically scrolling widget the focus lies in, unless the 2972 // focused widget is a text input 2973 fn focusedPane(root_focus: *const Focus) ?usize { 2974 var current = root_focus.grandchild_id orelse return null; 2975 switch ((root_focus.children.get(current) orelse return null).focus.kind) { 2976 .text_input, .text_input_password, .text_area => return null, 2977 else => {}, 2978 } 2979 while (root_focus.children.get(current)) |child| { 2980 if (child.focus.scroll) |info| if (info.direction != .horiz) return current; 2981 current = child.parent_id; 2982 } 2983 return null; 2984 } 2985 2986 // a link to bytes the server serves directly rather than to a page route, so 2987 // it never resolves to a RoutablePage 2988 pub const raw_link_prefix = "ax:"; 2989 2990 // a route already loaded into the current page; focusing it changes the url 2991 // without rebuilding the page 2992 pub const in_page_link_prefix = "ai:"; 2993 2994 // an in-page tab's base route, or the exact current route when it is selected 2995 pub fn inPageTabLink(session: *Session, route: RoutablePage, selected: bool) ![]const u8 { 2996 const target = if (selected) session.data.current_page else route; 2997 return session.page_arena.allocator().print("{s}{s}", .{ in_page_link_prefix, try target.toUrl(session.page_arena) }); 2998 } 2999 3000 // a button the web renderer covers with a file picker that posts the chosen 3001 // file to the url after the prefix 3002 pub const file_input_prefix = "file:"; 3003 3004 // a submit button that overrides its enclosing form's action 3005 pub const submit_action_prefix = "submit:"; 3006 3007 // one option of a radio field, as `radio:<name>=<value>` 3008 pub const radio_prefix = "radio:"; 3009 3010 // the url an `ax:` link points at, or null for anything else. a host that 3011 // suppresses the anchor's own navigation needs this to follow the link. 3012 pub fn rawLink(root_focus: *Focus, focus_id: usize) ?[]const u8 { 3013 const child = root_focus.children.get(focus_id) orelse return null; 3014 const custom = switch (child.focus.kind) { 3015 .custom => |c| c, 3016 else => return null, 3017 }; 3018 if (!std.mem.startsWith(u8, custom, raw_link_prefix)) return null; 3019 return custom[raw_link_prefix.len..]; 3020 } 3021 3022 fn requestRawLink(session: *Session, url: []const u8) !void { 3023 session.host_request = .{ .show_copyable_text = try terminalWebUrl(session.page_arena.allocator(), session, url) }; 3024 } 3025 3026 pub fn terminalWebUrl(allocator: std.mem.Allocator, session: *const Session, path: []const u8) ![]const u8 { 3027 // an absolute url is already complete 3028 if (!std.mem.startsWith(u8, path, "/")) return path; 3029 return if (session.web_url) |web_url| 3030 try allocator.print("{s}{s}", .{ web_url, path }) 3031 else 3032 path; 3033 } 3034 3035 // if the focus target at focus_id is an `a:` link that should navigate (a 3036 // different parent page, or a different files directory within the repo page), 3037 // return its route; otherwise null. lets a host turn a click / enter on such a 3038 // link into a navigation rather than a focus change. 3039 pub fn crossPageLink(root_focus: *Focus, focus_id: usize, data: Session.Data) ?RoutablePage { 3040 const current = data.current_page; 3041 const route = pageLink(root_focus, focus_id, data, "a:") orelse return null; 3042 // a link to a different parent page always navigates; within a page, a 3043 // files-directory / commits-page / list-window change navigates while tab 3044 // links stay in-page. 3045 if (route.parent() != current.parent() or RoutablePage.repoPageChanged(route, current) or RoutablePage.forkPageChanged(route, current) or RoutablePage.homePageChanged(route, current) or RoutablePage.userPageChanged(route, current)) return route; 3046 return null; 3047 } 3048 3049 // the page the clicked cell links to, from a link inside a text box's content 3050 fn cellPageLink(root: *Widget, x: usize, y: usize, data: Session.Data) ?RoutablePage { 3051 const grid = root.getGrid() orelse return null; 3052 const cell = grid.cell(x, y) catch return null; 3053 const link = cell.link orelse return null; 3054 if (link.len == 0 or link[0] != '/') return null; 3055 return if (data.host_kind == .local) RoutablePage.fromUrlLocal(link) else RoutablePage.fromUrl(link); 3056 } 3057 3058 // whether the `a:` focus target links to the page already shown, which a click 3059 // leaves alone rather than focusing 3060 pub fn currentPageLink(root_focus: *Focus, focus_id: usize, data: Session.Data) bool { 3061 const route = pageLink(root_focus, focus_id, data, "a:") orelse return false; 3062 return route.eql(data.current_page); 3063 } 3064 3065 // the route carried by an `ai:` focus target, or null for any other target 3066 pub fn inPageLink(root_focus: *Focus, focus_id: usize, data: Session.Data) ?RoutablePage { 3067 return pageLink(root_focus, focus_id, data, in_page_link_prefix); 3068 } 3069 3070 fn pageLink(root_focus: *Focus, focus_id: usize, data: Session.Data, prefix: []const u8) ?RoutablePage { 3071 const child = root_focus.children.get(focus_id) orelse return null; 3072 const custom = switch (child.focus.kind) { 3073 .custom => |c| c, 3074 else => return null, 3075 }; 3076 if (!std.mem.startsWith(u8, custom, prefix)) return null; 3077 const path = custom[prefix.len..]; 3078 // local sessions build (and parse) links with the repo identity elided 3079 return if (data.host_kind == .local) RoutablePage.fromUrlLocal(path) else RoutablePage.fromUrl(path); 3080 } 3081 3082 // an assignee as the detail view shows it: the stored email, and the name of 3083 // the user holding it on this instance when there is one 3084 pub const Assignee = struct { 3085 email: []const u8, 3086 name: ?[]const u8 = null, 3087 3088 pub fn display(self: Assignee) []const u8 { 3089 return self.name orelse self.email; 3090 } 3091 }; 3092 3093 // a display author, resolved against the admin db at read time 3094 pub const Author = union(enum) { 3095 unknown, 3096 email: []const u8, // an email no user matches 3097 user_name: []const u8, 3098 3099 // the commit author line's email, resolved like initFromEmail 3100 pub fn init( 3101 haxy_moment: ?evt.AdminDB.HashMap(.read_only), 3102 arena: *std.heap.ArenaAllocator, 3103 author_line: []const u8, 3104 ) !Author { 3105 return initFromEmail(haxy_moment, arena, evt.authorEmail(author_line)); 3106 } 3107 3108 // from a record's stored author email: it resolves to the user currently 3109 // holding it, else stays the email. the result is allocated in `arena`, 3110 // so the email may borrow transient memory. 3111 pub fn initFromEmail( 3112 haxy_moment: ?evt.AdminDB.HashMap(.read_only), 3113 arena: *std.heap.ArenaAllocator, 3114 author_email: ?[]const u8, 3115 ) !Author { 3116 const email = author_email orelse return .unknown; 3117 if (haxy_moment) |moment| { 3118 if (try evt.User.readByEmail(evt.AdminDB, evt.admin_repo_opts.hash, moment, arena, email)) |user| { 3119 return .{ .user_name = user.name }; 3120 } 3121 } 3122 return .{ .email = try arena.allocator().dupe(u8, email) }; 3123 } 3124 }; 3125 3126 // the "a:" link to user `name`'s page. 3127 pub fn userLink(page_arena: *std.heap.ArenaAllocator, name: []const u8) ![]const u8 { 3128 const parsed = RoutablePage.Array(evt.User.name_max_len).from(name) orelse return error.RouteTooLong; 3129 const url = try (RoutablePage{ .user_repos = .{ .name = parsed } }).toUrl(page_arena); 3130 return page_arena.allocator().print("a:{s}", .{url}); 3131 } 3132 3133 // a focusable " author " box showing `author`, linking to their user page 3134 // when it is a known user 3135 pub fn authorBox(allocator: std.mem.Allocator, page_arena: *std.heap.ArenaAllocator, author: Author) !wgt.TextBox { 3136 const text = switch (author) { 3137 .unknown => "", 3138 .email, .user_name => |t| t, 3139 }; 3140 var tb = try wgt.TextBox.init(allocator, text, .{ .border = .single, .round_corners = true, .wrap_kind = .none, .top_label = .{ .text = " author " } }); 3141 errdefer tb.deinit(allocator); 3142 tb.getFocus().mode = .all; 3143 switch (author) { 3144 .user_name => |name| tb.getFocus().kind = .{ .custom = try userLink(page_arena, name) }, 3145 else => {}, 3146 } 3147 return tb; 3148 } 3149 3150 // native-TUI navigation 3151 pub const Nav = struct { 3152 root: Widget, 3153 // backs the current page (its Page data and the page-scoped strings its 3154 // widgets build). owned here, swapped on each navigation. session.page_arena 3155 // tracks whichever of these is current so widgets allocate into it. 3156 arena: *std.heap.ArenaAllocator, 3157 // the login the current root was built for 3158 user_id: ?[evt.event_id_size]u8, 3159 history: std.ArrayList(Entry), 3160 3161 // each retained page keeps its own arena, freed when the page leaves the 3162 // stack (popped on back, evicted at cap, or on deinit). this is what keeps a 3163 // long-lived session from accumulating every page it ever visited. 3164 const Entry = struct { root: Widget, route: RoutablePage, arena: *std.heap.ArenaAllocator, user_id: ?[evt.event_id_size]u8 }; 3165 3166 // cap on retained back-history so the chain can't grow memory without bound 3167 const max_history: usize = 16; 3168 3169 pub fn init(allocator: std.mem.Allocator, session: *Session) !Nav { 3170 session.back = .unavailable; 3171 const arena = try allocator.create(std.heap.ArenaAllocator); 3172 arena.* = std.heap.ArenaAllocator.init(allocator); 3173 errdefer { 3174 arena.deinit(); 3175 allocator.destroy(arena); 3176 } 3177 3178 return .{ 3179 .root = try initCurrentRoot(allocator, arena, session), 3180 .arena = arena, 3181 .user_id = session.userId(), 3182 .history = .empty, 3183 }; 3184 } 3185 3186 pub fn deinit(self: *Nav, allocator: std.mem.Allocator) void { 3187 self.root.deinit(allocator); 3188 freeArena(allocator, self.arena); 3189 for (self.history.items) |*entry| { 3190 entry.root.deinit(allocator); 3191 freeArena(allocator, entry.arena); 3192 } 3193 self.history.deinit(allocator); 3194 } 3195 3196 // rebuild the current page in place from a current moment 3197 fn rebuild(self: *Nav, allocator: std.mem.Allocator, session: *Session) !void { 3198 if (session.haxy_moment == null and session.local == null) return; 3199 const arena = try allocator.create(std.heap.ArenaAllocator); 3200 arena.* = std.heap.ArenaAllocator.init(allocator); 3201 errdefer freeArena(allocator, arena); 3202 3203 const new_root = try initCurrentRoot(allocator, arena, session); 3204 3205 self.root.deinit(allocator); 3206 freeArena(allocator, self.arena); 3207 self.root = new_root; 3208 self.arena = arena; 3209 self.user_id = session.userId(); 3210 } 3211 3212 // build the current page's root in `arena`, or the not-found page's when 3213 // the route names nothing 3214 fn initCurrentRoot(allocator: std.mem.Allocator, arena: *std.heap.ArenaAllocator, session: *Session) !Widget { 3215 session.page_arena = arena; 3216 const page = try arena.allocator().create(Page); 3217 page.* = Page.init(arena, session, session.data.current_page) catch |err| switch (err) { 3218 error.NotFound => blk: { 3219 session.data.current_page = .not_found; 3220 break :blk .not_found; 3221 }, 3222 else => |e| return e, 3223 }; 3224 return initRoot(allocator, page, session); 3225 } 3226 3227 fn freeArena(allocator: std.mem.Allocator, arena: *std.heap.ArenaAllocator) void { 3228 arena.deinit(); 3229 allocator.destroy(arena); 3230 } 3231 3232 // reconcile the displayed root with the session's navigation state. a 3233 // forward nav (current_page moved to a different parent page) pushes the 3234 // current root and builds the new page in a fresh arena; a back request 3235 // frees the current page and restores the previous one. when escape is 3236 // pressed with no history left we switch to the quit tab instead of quitting. 3237 // returns whether the root was replaced. 3238 pub fn sync(self: *Nav, allocator: std.mem.Allocator, session: *Session) !bool { 3239 // refresh: rebuild the current page in place from a current moment 3240 if (session.refresh_requested) { 3241 session.refresh_requested = false; 3242 try self.rebuild(allocator, session); 3243 return true; 3244 } 3245 3246 if (session.back == .requested) { 3247 if (self.history.pop()) |entry| { 3248 session.back = if (self.history.items.len == 0) .unavailable else .available; 3249 self.root.deinit(allocator); 3250 freeArena(allocator, self.arena); 3251 self.root = entry.root; 3252 self.arena = entry.arena; 3253 self.user_id = entry.user_id; 3254 session.page_arena = entry.arena; 3255 session.data.current_page = entry.route; 3256 // a page built under another login is rebuilt rather than restored 3257 if (!std.meta.eql(entry.user_id, session.userId())) { 3258 try self.rebuild(allocator, session); 3259 return true; 3260 } 3261 chooseAnsiArtForNavigation(session); 3262 return true; 3263 } 3264 session.back = .unavailable; 3265 // nothing to go back to; switch to the quit confirmation 3266 const root_focus = self.root.getFocus(); 3267 var iter = root_focus.children.iterator(); 3268 while (iter.next()) |entry| { 3269 switch (entry.value_ptr.focus.kind) { 3270 .custom => |custom| if (std.mem.eql(u8, custom, Quit.tab_kind)) { 3271 root_focus.setFocus(entry.key_ptr.*); 3272 // a Stack only builds its selected child, so the quit 3273 // button isn't in the focus tree until a build runs with 3274 // the quit tab selected. build once, then send a 3275 // synthetic arrow_down to drop focus from the tab onto 3276 // the button so it's ready to confirm. 3277 try self.root.build(allocator, .{ 3278 .min_size = .{ .width = null, .height = 40 }, 3279 .max_size = .{ .width = 80, .height = null }, 3280 }, root_focus); 3281 try self.root.input(allocator, .arrow_down, root_focus); 3282 break; 3283 }, 3284 else => {}, 3285 } 3286 } 3287 return false; 3288 } 3289 3290 // forward navigation: navigate() set next_page to the page to move to (a 3291 // cross-page link or tab change crossing pages) 3292 if (session.next_page) |route| { 3293 session.next_page = null; 3294 if (session.haxy_moment == null and session.local == null) return false; 3295 const previous_route = session.data.current_page; 3296 // the page we navigated to becomes the current page 3297 session.data.current_page = route; 3298 session.back = .available; 3299 3300 const arena = try allocator.create(std.heap.ArenaAllocator); 3301 arena.* = std.heap.ArenaAllocator.init(allocator); 3302 errdefer freeArena(allocator, arena); 3303 3304 const new_root = try initCurrentRoot(allocator, arena, session); 3305 3306 try self.history.append(allocator, .{ .root = self.root, .route = previous_route, .arena = self.arena, .user_id = self.user_id }); 3307 // drop the oldest entry (freeing its widget tree and arena) once over cap 3308 if (self.history.items.len > max_history) { 3309 var oldest = self.history.orderedRemove(0); 3310 oldest.root.deinit(allocator); 3311 freeArena(allocator, oldest.arena); 3312 } 3313 self.root = new_root; 3314 self.arena = arena; 3315 self.user_id = session.userId(); 3316 return true; 3317 } 3318 return false; 3319 } 3320 }; 3321 3322 pub fn initRoot(allocator: std.mem.Allocator, page: *const Page, session: *Session) !Widget { 3323 const page_widget: Widget = switch (page.*) { 3324 .home => |*p| .{ .home = try .init(allocator, p, session) }, 3325 .user => |*p| .{ .user = try .init(allocator, p, session) }, 3326 .repo => |*p| .{ .repo = try .init(allocator, p, session) }, 3327 .fork => |*p| .{ .fork = try .init(allocator, p, session) }, 3328 .not_found => .{ .not_found = try .init(allocator, session) }, 3329 }; 3330 3331 chooseAnsiArtForNavigation(session); 3332 3333 // on the TUI/SSH, the page sits above a one-row footer showing its web 3334 // url, when there's a web UI to point at 3335 var root = if (session.is_terminal) blk: { 3336 var box = try wgt.Box(Widget).init(allocator, .{ .border = null, .direction = .vert }); 3337 errdefer box.deinit(allocator); 3338 const bg_id = bg_blk: { 3339 var background = try widget.AnsiBackground.init(allocator, page_widget, session); 3340 errdefer background.deinit(allocator); 3341 const id = background.getFocus().id; 3342 try box.children.put(allocator, id, .{ .widget = .{ .background = background }, .rect = null, .min_size = null }); 3343 break :bg_blk id; 3344 }; 3345 if (session.web_url != null) { 3346 var footer = try widget.Footer.init(allocator, session); 3347 errdefer footer.deinit(allocator); 3348 try box.children.put(allocator, footer.getFocus().id, .{ .widget = .{ .footer = footer }, .rect = null, .min_size = .{ .width = null, .height = 1 } }); 3349 } 3350 box.getFocus().child_id = bg_id; 3351 break :blk Widget{ .box = box }; 3352 } else Widget{ .background = try widget.AnsiBackground.init(allocator, page_widget, session) }; 3353 errdefer root.deinit(allocator); 3354 3355 // input-owning views build their TextInputs in init, so reset their 3356 // registrations here 3357 session.text_inputs.clearRetainingCapacity(); 3358 3359 try root.build(allocator, .{ 3360 .min_size = .{ .width = null, .height = 40 }, 3361 .max_size = .{ .width = 100, .height = null }, 3362 }, root.getFocus()); 3363 3364 return root; 3365 } 3366 3367 // native and server-side sessions choose from the embedded collection. WASM 3368 // keeps the art serialized by the server instead. 3369 fn chooseAnsiArtForNavigation(session: *Session) void { 3370 if (comptime ansi_art.art.len == 0) return; 3371 if (session.data.current_page == .not_found) { 3372 session.data.ansi_art = ansi_art.not_found; 3373 return; 3374 } 3375 const io = session.io orelse return; 3376 var random: usize = undefined; 3377 io.random(std.mem.asBytes(&random)); 3378 session.data.ansi_art = ansi_art.art[random % ansi_art.art.len]; 3379 } 3380