╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ ui.zig ───────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
🬐 🬠 🬞🬂🬏 🬟 🬑 🬟 🬑 ╭7fcb7c5a..╮ 7fcb7c5a.. see-em: 🬋🬋🬋 🬋🬋🬋 🬋 🬋 │files │ commits refs discuss issues new login 🬐 🬠 🬐 🬠 🬑 🬟 🬰 ╰──────────╯ (647) user
╭────╮ ╭ 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 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
2721 // holding it, else stays the email. the result is allocated in `arena`, 2722 // so the email may borrow transient memory. 2723 pub fn initFromEmail( 2724 haxy_moment: ?evt.AdminDB.HashMap(.read_only), 2725 arena: *std.heap.ArenaAllocator, 2726 author_email: ?[]const u8, 2727 ) !Author { 2728 const email = author_email orelse return .unknown; 2729 if (haxy_moment) |moment| { 2730 if (try evt.User.readByEmail(evt.AdminDB, evt.admin_repo_opts.hash, moment, arena, email)) |user| { 2731 return .{ .user_name = user.name }; 2732 } 2733 } 2734 return .{ .email = try arena.allocator().dupe(u8, email) }; 2735 } 2736 }; 2737 2738 // the "a:" link to user `name`'s page. 2739 pub fn userLink(page_arena: *std.heap.ArenaAllocator, name: []const u8) ![]const u8 { 2740 const parsed = RoutablePage.Array(evt.User.name_max_len).from(name) orelse return error.RouteTooLong; 2741 const url = try (RoutablePage{ .user_repos = .{ .name = parsed } }).toUrl(page_arena); 2742 return page_arena.allocator().print("a:{s}", .{url}); 2743 } 2744 2745 // a focusable " author " box showing `author`, linking to their user page 2746 // when it is a known user 2747 pub fn authorBox(allocator: std.mem.Allocator, page_arena: *std.heap.ArenaAllocator, author: Author) !wgt.TextBox { 2748 const text = switch (author) { 2749 .unknown => "", 2750 .email, .user_name => |t| t, 2751 }; 2752 var tb = try wgt.TextBox.init(allocator, text, .{ .border = .single, .round_corners = true, .wrap_kind = .none, .top_label = .{ .text = " author " } }); 2753 errdefer tb.deinit(allocator); 2754 tb.getFocus().mode = .all; 2755 switch (author) { 2756 .user_name => |name| tb.getFocus().kind = .{ .custom = try userLink(page_arena, name) }, 2757 else => {}, 2758 } 2759 return tb; 2760 } 2761 2762 // native-TUI navigation 2763 pub const Nav = struct { 2764 root: Widget, 2765 // backs the current page (its Page data and the page-scoped strings its 2766 // widgets build). owned here, swapped on each navigation. session.page_arena 2767 // tracks whichever of these is current so widgets allocate into it. 2768 arena: *std.heap.ArenaAllocator, 2769 // the login the current root was built for 2770 user_id: ?[evt.event_id_size]u8, 2771 history: std.ArrayList(Entry), 2772 2773 // each retained page keeps its own arena, freed when the page leaves the 2774 // stack (popped on back, evicted at cap, or on deinit). this is what keeps a 2775 // long-lived session from accumulating every page it ever visited. 2776 const Entry = struct { root: Widget, route: RoutablePage, arena: *std.heap.ArenaAllocator, user_id: ?[evt.event_id_size]u8 }; 2777 2778 // cap on retained back-history so the chain can't grow memory without bound 2779 const max_history: usize = 16; 2780 2781 pub fn init(allocator: std.mem.Allocator, session: *Session) !Nav { 2782 session.back = .unavailable; 2783 const arena = try allocator.create(std.heap.ArenaAllocator); 2784 arena.* = std.heap.ArenaAllocator.init(allocator); 2785 errdefer { 2786 arena.deinit(); 2787 allocator.destroy(arena); 2788 } 2789 2790 return .{ 2791 .root = try initCurrentRoot(allocator, arena, session), 2792 .arena = arena, 2793 .user_id = session.userId(), 2794 .history = .empty, 2795 }; 2796 } 2797 2798 pub fn deinit(self: *Nav, allocator: std.mem.Allocator) void { 2799 self.root.deinit(allocator); 2800 freeArena(allocator, self.arena); 2801 for (self.history.items) |*entry| { 2802 entry.root.deinit(allocator); 2803 freeArena(allocator, entry.arena); 2804 } 2805 self.history.deinit(allocator); 2806 } 2807 2808 // rebuild the current page in place from a current moment 2809 fn rebuild(self: *Nav, allocator: std.mem.Allocator, session: *Session) !void { 2810 if (session.haxy_moment == null and session.local == null) return; 2811 const arena = try allocator.create(std.heap.ArenaAllocator); 2812 arena.* = std.heap.ArenaAllocator.init(allocator); 2813 errdefer freeArena(allocator, arena); 2814 2815 const new_root = try initCurrentRoot(allocator, arena, session); 2816 2817 self.root.deinit(allocator); 2818 freeArena(allocator, self.arena); 2819 self.root = new_root; 2820 self.arena = arena; 2821 self.user_id = session.userId(); 2822 } 2823 2824 // build the current page's root in `arena`, or the not-found page's when 2825 // the route names nothing 2826 fn initCurrentRoot(allocator: std.mem.Allocator, arena: *std.heap.ArenaAllocator, session: *Session) !Widget { 2827 session.page_arena = arena; 2828 const page = try arena.allocator().create(Page); 2829 page.* = Page.init(arena, session, session.data.current_page) catch |err| switch (err) { 2830 error.NotFound => blk: { 2831 session.data.current_page = .not_found; 2832 break :blk .not_found; 2833 }, 2834 else => |e| return e, 2835 }; 2836 return initRoot(allocator, page, session); 2837 } 2838 2839 fn freeArena(allocator: std.mem.Allocator, arena: *std.heap.ArenaAllocator) void { 2840 arena.deinit(); 2841 allocator.destroy(arena); 2842 } 2843 2844 // reconcile the displayed root with the session's navigation state. a 2845 // forward nav (current_page moved to a different parent page) pushes the 2846 // current root and builds the new page in a fresh arena; a back request 2847 // frees the current page and restores the previous one. when escape is 2848 // pressed with no history left we switch to the quit tab instead of quitting. 2849 // returns whether the root was replaced. 2850 pub fn sync(self: *Nav, allocator: std.mem.Allocator, session: *Session) !bool { 2851 // refresh: rebuild the current page in place from a current moment 2852 if (session.refresh_requested) { 2853 session.refresh_requested = false; 2854 try self.rebuild(allocator, session); 2855 return true; 2856 } 2857 2858 if (session.back == .requested) { 2859 if (self.history.pop()) |entry| { 2860 session.back = if (self.history.items.len == 0) .unavailable else .available; 2861 self.root.deinit(allocator); 2862 freeArena(allocator, self.arena); 2863 self.root = entry.root; 2864 self.arena = entry.arena; 2865 self.user_id = entry.user_id; 2866 session.page_arena = entry.arena; 2867 session.data.current_page = entry.route; 2868 // a page built under another login is rebuilt rather than restored 2869 if (!std.meta.eql(entry.user_id, session.userId())) { 2870 try self.rebuild(allocator, session); 2871 return true; 2872 } 2873 chooseAnsiArtForNavigation(session); 2874 return true; 2875 } 2876 session.back = .unavailable; 2877 // nothing to go back to; switch to the quit confirmation 2878 const root_focus = self.root.getFocus(); 2879 var iter = root_focus.children.iterator(); 2880 while (iter.next()) |entry| { 2881 switch (entry.value_ptr.focus.kind) { 2882 .custom => |custom| if (std.mem.eql(u8, custom, Quit.tab_kind)) { 2883 root_focus.setFocus(entry.key_ptr.*); 2884 // a Stack only builds its selected child, so the quit 2885 // button isn't in the focus tree until a build runs with 2886 // the quit tab selected. build once, then send a 2887 // synthetic arrow_down to drop focus from the tab onto 2888 // the button so it's ready to confirm. 2889 try self.root.build(allocator, .{ 2890 .min_size = .{ .width = null, .height = 40 }, 2891 .max_size = .{ .width = 80, .height = null }, 2892 }, root_focus); 2893 try self.root.input(allocator, .arrow_down, root_focus); 2894 break; 2895 }, 2896 else => {}, 2897 } 2898 } 2899 return false; 2900 } 2901 2902 // forward navigation: navigate() set next_page to the page to move to (a 2903 // cross-page link or tab change crossing pages) 2904 if (session.next_page) |route| { 2905 session.next_page = null; 2906 if (session.haxy_moment == null and session.local == null) return false; 2907 const previous_route = session.data.current_page; 2908 // the page we navigated to becomes the current page 2909 session.data.current_page = route; 2910 session.back = .available; 2911 2912 const arena = try allocator.create(std.heap.ArenaAllocator); 2913 arena.* = std.heap.ArenaAllocator.init(allocator); 2914 errdefer freeArena(allocator, arena); 2915 2916 const new_root = try initCurrentRoot(allocator, arena, session); 2917 2918 try self.history.append(allocator, .{ .root = self.root, .route = previous_route, .arena = self.arena, .user_id = self.user_id }); 2919 // drop the oldest entry (freeing its widget tree and arena) once over cap 2920 if (self.history.items.len > max_history) { 2921 var oldest = self.history.orderedRemove(0); 2922 oldest.root.deinit(allocator); 2923 freeArena(allocator, oldest.arena); 2924 } 2925 self.root = new_root; 2926 self.arena = arena; 2927 self.user_id = session.userId(); 2928 return true; 2929 } 2930 return false; 2931 } 2932 }; 2933 2934 pub fn initRoot(allocator: std.mem.Allocator, page: *const Page, session: *Session) !Widget { 2935 const page_widget: Widget = switch (page.*) { 2936 .home => |*p| .{ .home = try .init(allocator, p, session) }, 2937 .user => |*p| .{ .user = try .init(allocator, p, session) }, 2938 .repo => |*p| .{ .repo = try .init(allocator, p, session) }, 2939 .fork => |*p| .{ .fork = try .init(allocator, p, session) }, 2940 .not_found => .{ .not_found = try .init(allocator, session) }, 2941 }; 2942 2943 chooseAnsiArtForNavigation(session); 2944 2945 // on the TUI/SSH, the page sits above a one-row footer showing its web 2946 // url, when there's a web UI to point at 2947 var root = if (session.is_terminal) blk: { 2948 var box = try wgt.Box(Widget).init(allocator, .{ .border = null, .direction = .vert }); 2949 errdefer box.deinit(allocator); 2950 const bg_id = bg_blk: { 2951 var background = try widget.AnsiBackground.init(allocator, page_widget, session); 2952 errdefer background.deinit(allocator); 2953 const id = background.getFocus().id; 2954 try box.children.put(allocator, id, .{ .widget = .{ .background = background }, .rect = null, .min_size = null }); 2955 break :bg_blk id; 2956 }; 2957 if (session.web_port != null) { 2958 var footer = try widget.Footer.init(allocator, session); 2959 errdefer footer.deinit(allocator); 2960 try box.children.put(allocator, footer.getFocus().id, .{ .widget = .{ .footer = footer }, .rect = null, .min_size = .{ .width = null, .height = 1 } }); 2961 } 2962 box.getFocus().child_id = bg_id; 2963 break :blk Widget{ .box = box }; 2964 } else Widget{ .background = try widget.AnsiBackground.init(allocator, page_widget, session) }; 2965 errdefer root.deinit(allocator); 2966 2967 // input-owning views build their TextInputs in init, so reset their 2968 // registrations here 2969 session.text_inputs.clearRetainingCapacity(); 2970 2971 try root.build(allocator, .{ 2972 .min_size = .{ .width = null, .height = 40 }, 2973 .max_size = .{ .width = 100, .height = null }, 2974 }, root.getFocus()); 2975 2976 return root; 2977 } 2978 2979 // native and server-side sessions choose from the embedded collection. WASM 2980 // keeps the art serialized by the server instead. 2981 fn chooseAnsiArtForNavigation(session: *Session) void { 2982 if (comptime ansi_art.art.len == 0) return; 2983 if (session.data.current_page == .not_found) { 2984 session.data.ansi_art = ansi_art.not_found; 2985 return; 2986 } 2987 const io = session.io orelse return; 2988 var random: usize = undefined; 2989 io.random(std.mem.asBytes(&random)); 2990 session.data.ansi_art = ansi_art.art[random % ansi_art.art.len]; 2991 } 2992