╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ ui.zig ───────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯
2447 arena.* = std.heap.ArenaAllocator.init(allocator); 2448 errdefer freeArena(allocator, arena); 2449 2450 session.page_arena = arena; 2451 2452 const page = try arena.allocator().create(Page); 2453 page.* = try Page.init(arena, session, route); 2454 const new_root = try initRoot(allocator, page, session); 2455 2456 try self.history.append(allocator, .{ .root = self.root, .route = previous_route, .arena = self.arena }); 2457 // drop the oldest entry (freeing its widget tree and arena) once over cap 2458 if (self.history.items.len > max_history) { 2459 var oldest = self.history.orderedRemove(0); 2460 oldest.root.deinit(allocator); 2461 freeArena(allocator, oldest.arena); 2462 } 2463 self.root = new_root; 2464 self.arena = arena; 2465 } 2466 } 2467 }; 2468 2469 pub fn initRoot(allocator: std.mem.Allocator, page: *const Page, session: *Session) !Widget { 2470 const page_widget: Widget = switch (page.*) { 2471 .home => |*p| .{ .home = try .init(allocator, p, session) }, 2472 .user => |*p| .{ .user = try .init(allocator, p, session) }, 2473 .repo => |*p| .{ .repo = try .init(allocator, p, session) }, 2474 .fork => |*p| .{ .fork = try .init(allocator, p, session) }, 2475 }; 2476 2477 chooseAnsiArtForNavigation(session); 2478 2479 // on the TUI/SSH, the page sits above a one-row footer showing the url 2480 var root = if (session.is_terminal) blk: { 2481 var box = try wgt.Box(Widget).init(allocator, .{ .border_style = null, .direction = .vert }); 2482 errdefer box.deinit(allocator); 2483 const bg_id = bg_blk: { 2484 var background = try widget.AnsiBackground.init(allocator, page_widget, session); 2485 errdefer background.deinit(allocator); 2486 const id = background.getFocus().id; 2487 try box.children.put(allocator, id, .{ .widget = .{ .background = background }, .rect = null, .min_size = null }); 2488 break :bg_blk id; 2489 }; 2490 { 2491 var footer = try widget.Footer.init(allocator, session); 2492 errdefer footer.deinit(allocator); 2493 try box.children.put(allocator, footer.getFocus().id, .{ .widget = .{ .footer = footer }, .rect = null, .min_size = .{ .width = null, .height = 1 } }); 2494 } 2495 box.getFocus().child_id = bg_id; 2496 break :blk Widget{ .box = box }; 2497 } else Widget{ .background = try widget.AnsiBackground.init(allocator, page_widget, session) }; 2498 errdefer root.deinit(allocator); 2499 2500 // input-owning views build their TextInputs in init, so reset their 2501 // registrations here 2502 session.text_inputs.clearRetainingCapacity(); 2503 2504 try root.build(allocator, .{ 2505 .min_size = .{ .width = null, .height = 40 }, 2506 .max_size = .{ .width = 100, .height = null }, 2507 }, root.getFocus()); 2508 2509 return root; 2510 } 2511 2512 // native and server-side sessions choose from the embedded collection. WASM 2513 // keeps the art serialized by the server instead. 2514 fn chooseAnsiArtForNavigation(session: *Session) void { 2515 if (comptime ansi_arts.len == 0) return; 2516 const io = session.io orelse return; 2517 var random: usize = undefined; 2518 io.random(std.mem.asBytes(&random)); 2519 session.data.ansi_art = ansi_arts[random % ansi_arts.len]; 2520 } 2521