╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ ui.zig ───────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯
2244 session.next_page = null; 2245 if (session.haxy_moment == null and session.local == null) return; 2246 // the page we navigated to becomes the current page 2247 session.data.current_page = route; 2248 2249 const arena = try allocator.create(std.heap.ArenaAllocator); 2250 arena.* = std.heap.ArenaAllocator.init(allocator); 2251 errdefer freeArena(allocator, arena); 2252 2253 session.page_arena = arena; 2254 2255 const page = try arena.allocator().create(Page); 2256 page.* = try Page.init(arena, session, route); 2257 const new_root = try initRoot(allocator, page, session); 2258 2259 try self.history.append(allocator, .{ .root = self.root, .route = self.route, .arena = self.arena }); 2260 // drop the oldest entry (freeing its widget tree and arena) once over cap 2261 if (self.history.items.len > max_history) { 2262 var oldest = self.history.orderedRemove(0); 2263 oldest.root.deinit(allocator); 2264 freeArena(allocator, oldest.arena); 2265 } 2266 self.root = new_root; 2267 self.route = route; 2268 self.arena = arena; 2269 } 2270 } 2271 }; 2272 2273 pub fn initRoot(allocator: std.mem.Allocator, page: *const Page, session: *Session) !Widget { 2274 const page_widget: Widget = switch (page.*) { 2275 .home => |*p| .{ .home = try .init(allocator, p, session) }, 2276 .user => |*p| .{ .user = try .init(allocator, p, session) }, 2277 .repo => |*p| .{ .repo = try .init(allocator, p, session) }, 2278 .fork => |*p| .{ .fork = try .init(allocator, p, session) }, 2279 }; 2280 2281 chooseAnsiArtForNavigation(session); 2282 2283 // on the TUI/SSH, the page sits above a one-row footer showing the url 2284 var root = if (session.is_terminal) blk: { 2285 var box = try wgt.Box(Widget).init(allocator, .{ .border_style = null, .direction = .vert }); 2286 errdefer box.deinit(allocator); 2287 const bg_id = bg_blk: { 2288 var background = try widget.AnsiBackground.init(allocator, page_widget, session); 2289 errdefer background.deinit(allocator); 2290 const id = background.getFocus().id; 2291 try box.children.put(allocator, id, .{ .widget = .{ .background = background }, .rect = null, .min_size = null }); 2292 break :bg_blk id; 2293 }; 2294 { 2295 var footer = try widget.Footer.init(allocator, session); 2296 errdefer footer.deinit(allocator); 2297 try box.children.put(allocator, footer.getFocus().id, .{ .widget = .{ .footer = footer }, .rect = null, .min_size = .{ .width = null, .height = 1 } }); 2298 } 2299 box.getFocus().child_id = bg_id; 2300 break :blk Widget{ .box = box }; 2301 } else Widget{ .background = try widget.AnsiBackground.init(allocator, page_widget, session) }; 2302 errdefer root.deinit(allocator); 2303 2304 // input-owning views build their TextInputs in init, so reset their 2305 // registrations here 2306 session.text_inputs.clearRetainingCapacity(); 2307 2308 try root.build(allocator, .{ 2309 .min_size = .{ .width = null, .height = 40 }, 2310 .max_size = .{ .width = 100, .height = null }, 2311 }, root.getFocus()); 2312 2313 return root; 2314 } 2315 2316 // native and server-side sessions choose from the embedded collection. WASM 2317 // keeps the art serialized by the server instead. 2318 fn chooseAnsiArtForNavigation(session: *Session) void { 2319 if (comptime ansi_arts.len == 0) return; 2320 const io = session.io orelse return; 2321 var random: usize = undefined; 2322 io.random(std.mem.asBytes(&random)); 2323 session.data.ansi_art = ansi_arts[random % ansi_arts.len]; 2324 } 2325