╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ ui.zig ───────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
🬐 🬠 🬞🬂🬏 🬟 🬑 🬟 🬑 ╭73ff1bca..╮ 73ff1bca.. see-em: 🬋🬋🬋 🬋🬋🬋 🬋 🬋 │files │ commits refs discuss issues new login 🬐 🬠 🬐 🬠 🬑 🬟 🬰 ╰──────────╯ (614) 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
2667 const current = data.current_page; 2668 const route = pageLink(root_focus, focus_id, data, "a:") orelse return null; 2669 // a link to a different parent page always navigates; within a page, a 2670 // files-directory / commits-page / list-window change navigates while tab 2671 // links stay in-page. 2672 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; 2673 return null; 2674 } 2675 2676 // the route carried by an `ai:` focus target, or null for any other target 2677 pub fn inPageLink(root_focus: *Focus, focus_id: usize, data: Session.Data) ?RoutablePage { 2678 return pageLink(root_focus, focus_id, data, in_page_link_prefix); 2679 } 2680 2681 fn pageLink(root_focus: *Focus, focus_id: usize, data: Session.Data, prefix: []const u8) ?RoutablePage { 2682 const child = root_focus.children.get(focus_id) orelse return null; 2683 const custom = switch (child.focus.kind) { 2684 .custom => |c| c, 2685 else => return null, 2686 }; 2687 if (!std.mem.startsWith(u8, custom, prefix)) return null; 2688 const path = custom[prefix.len..]; 2689 // local sessions build (and parse) links with the repo identity elided 2690 return if (data.host_kind == .local) RoutablePage.fromUrlLocal(path) else RoutablePage.fromUrl(path); 2691 } 2692 2693 // a display author, resolved against the admin db at read time 2694 pub const Author = union(enum) { 2695 unknown, 2696 email: []const u8, // an email no user matches 2697 user_name: []const u8, 2698 2699 // the commit author line's email, resolved like initFromEmail 2700 pub fn init( 2701 haxy_moment: ?evt.AdminDB.HashMap(.read_only), 2702 arena: *std.heap.ArenaAllocator, 2703 author_line: []const u8, 2704 ) !Author { 2705 return initFromEmail(haxy_moment, arena, evt.authorEmail(author_line)); 2706 } 2707 2708 // from a record's stored author email: it resolves to the user currently 2709 // holding it, else stays the email. the result is allocated in `arena`, 2710 // so the email may borrow transient memory. 2711 pub fn initFromEmail( 2712 haxy_moment: ?evt.AdminDB.HashMap(.read_only), 2713 arena: *std.heap.ArenaAllocator, 2714 author_email: ?[]const u8, 2715 ) !Author { 2716 const email = author_email orelse return .unknown; 2717 if (haxy_moment) |moment| { 2718 if (try evt.User.readByEmail(evt.AdminDB, evt.admin_repo_opts.hash, moment, arena, email)) |user| { 2719 return .{ .user_name = user.name }; 2720 } 2721 } 2722 return .{ .email = try arena.allocator().dupe(u8, email) }; 2723 } 2724 }; 2725 2726 // the "a:" link to user `name`'s page. 2727 pub fn userLink(page_arena: *std.heap.ArenaAllocator, name: []const u8) ![]const u8 { 2728 const parsed = RoutablePage.Array(evt.User.name_max_len).from(name) orelse return error.RouteTooLong; 2729 const url = try (RoutablePage{ .user_repos = .{ .name = parsed } }).toUrl(page_arena); 2730 return std.fmt.allocPrint(page_arena.allocator(), "a:{s}", .{url}); 2731 } 2732 2733 // a focusable " author " box showing `author`, linking to their user page 2734 // when it is a known user 2735 pub fn authorBox(allocator: std.mem.Allocator, page_arena: *std.heap.ArenaAllocator, author: Author) !wgt.TextBox { 2736 const text = switch (author) { 2737 .unknown => "", 2738 .email, .user_name => |t| t, 2739 }; 2740 var tb = try wgt.TextBox.init(allocator, text, .{ .border_style = .single, .round_corners = true, .wrap_kind = .none, .label = " author " }); 2741 errdefer tb.deinit(allocator); 2742 tb.getFocus().mode = .all; 2743 switch (author) { 2744 .user_name => |name| tb.getFocus().kind = .{ .custom = try userLink(page_arena, name) }, 2745 else => {}, 2746 } 2747 return tb; 2748 } 2749 2750 // native-TUI navigation 2751 pub const Nav = struct { 2752 root: Widget, 2753 // backs the current page (its Page data and the page-scoped strings its 2754 // widgets build). owned here, swapped on each navigation. session.page_arena 2755 // tracks whichever of these is current so widgets allocate into it. 2756 arena: *std.heap.ArenaAllocator, 2757 // the login the current root was built for 2758 user_id: ?[evt.event_id_size]u8, 2759 history: std.ArrayList(Entry), 2760 2761 // each retained page keeps its own arena, freed when the page leaves the 2762 // stack (popped on back, evicted at cap, or on deinit). this is what keeps a 2763 // long-lived session from accumulating every page it ever visited. 2764 const Entry = struct { root: Widget, route: RoutablePage, arena: *std.heap.ArenaAllocator, user_id: ?[evt.event_id_size]u8 }; 2765 2766 // cap on retained back-history so the chain can't grow memory without bound 2767 const max_history: usize = 16; 2768 2769 pub fn init(allocator: std.mem.Allocator, session: *Session) !Nav { 2770 session.back = .unavailable; 2771 const arena = try allocator.create(std.heap.ArenaAllocator); 2772 arena.* = std.heap.ArenaAllocator.init(allocator); 2773 errdefer { 2774 arena.deinit(); 2775 allocator.destroy(arena); 2776 } 2777 2778 return .{ 2779 .root = try initCurrentRoot(allocator, arena, session), 2780 .arena = arena, 2781 .user_id = session.userId(), 2782 .history = .empty, 2783 }; 2784 } 2785 2786 pub fn deinit(self: *Nav, allocator: std.mem.Allocator) void { 2787 self.root.deinit(allocator); 2788 freeArena(allocator, self.arena); 2789 for (self.history.items) |*entry| { 2790 entry.root.deinit(allocator); 2791 freeArena(allocator, entry.arena); 2792 } 2793 self.history.deinit(allocator); 2794 } 2795 2796 // rebuild the current page in place from a current moment 2797 fn rebuild(self: *Nav, allocator: std.mem.Allocator, session: *Session) !void { 2798 if (session.haxy_moment == null and session.local == null) return; 2799 const arena = try allocator.create(std.heap.ArenaAllocator); 2800 arena.* = std.heap.ArenaAllocator.init(allocator); 2801 errdefer freeArena(allocator, arena); 2802 2803 const new_root = try initCurrentRoot(allocator, arena, session); 2804 2805 self.root.deinit(allocator); 2806 freeArena(allocator, self.arena); 2807 self.root = new_root; 2808 self.arena = arena; 2809 self.user_id = session.userId(); 2810 } 2811 2812 // build the current page's root in `arena`, or the not-found page's when 2813 // the route names nothing 2814 fn initCurrentRoot(allocator: std.mem.Allocator, arena: *std.heap.ArenaAllocator, session: *Session) !Widget { 2815 session.page_arena = arena; 2816 const page = try arena.allocator().create(Page); 2817 page.* = Page.init(arena, session, session.data.current_page) catch |err| switch (err) { 2818 error.NotFound => blk: { 2819 session.data.current_page = .not_found; 2820 break :blk .not_found; 2821 }, 2822 else => |e| return e, 2823 }; 2824 return initRoot(allocator, page, session); 2825 } 2826 2827 fn freeArena(allocator: std.mem.Allocator, arena: *std.heap.ArenaAllocator) void { 2828 arena.deinit(); 2829 allocator.destroy(arena); 2830 } 2831 2832 // reconcile the displayed root with the session's navigation state. a 2833 // forward nav (current_page moved to a different parent page) pushes the 2834 // current root and builds the new page in a fresh arena; a back request 2835 // frees the current page and restores the previous one. when escape is 2836 // pressed with no history left we switch to the quit tab instead of quitting. 2837 pub fn sync(self: *Nav, allocator: std.mem.Allocator, session: *Session) !void { 2838 // refresh: rebuild the current page in place from a current moment 2839 if (session.refresh_requested) { 2840 session.refresh_requested = false; 2841 try self.rebuild(allocator, session); 2842 return; 2843 } 2844 2845 if (session.back == .requested) { 2846 if (self.history.pop()) |entry| { 2847 session.back = if (self.history.items.len == 0) .unavailable else .available; 2848 self.root.deinit(allocator); 2849 freeArena(allocator, self.arena); 2850 self.root = entry.root; 2851 self.arena = entry.arena; 2852 self.user_id = entry.user_id; 2853 session.page_arena = entry.arena; 2854 session.data.current_page = entry.route; 2855 // a page built under another login is rebuilt rather than restored 2856 if (!std.meta.eql(entry.user_id, session.userId())) { 2857 try self.rebuild(allocator, session); 2858 return; 2859 } 2860 chooseAnsiArtForNavigation(session); 2861 return; 2862 } 2863 session.back = .unavailable; 2864 // nothing to go back to; switch to the quit confirmation 2865 const root_focus = self.root.getFocus(); 2866 var iter = root_focus.children.iterator(); 2867 while (iter.next()) |entry| { 2868 switch (entry.value_ptr.focus.kind) { 2869 .custom => |custom| if (std.mem.eql(u8, custom, Quit.tab_kind)) { 2870 root_focus.setFocus(entry.key_ptr.*); 2871 // a Stack only builds its selected child, so the quit 2872 // button isn't in the focus tree until a build runs with 2873 // the quit tab selected. build once, then send a 2874 // synthetic arrow_down to drop focus from the tab onto 2875 // the button so it's ready to confirm. 2876 try self.root.build(allocator, .{ 2877 .min_size = .{ .width = null, .height = 40 }, 2878 .max_size = .{ .width = 80, .height = null }, 2879 }, root_focus); 2880 try self.root.input(allocator, .arrow_down, root_focus); 2881 break; 2882 }, 2883 else => {}, 2884 } 2885 } 2886 return; 2887 } 2888 2889 // forward navigation: navigate() set next_page to the page to move to (a 2890 // cross-page link or tab change crossing pages) 2891 if (session.next_page) |route| { 2892 session.next_page = null; 2893 if (session.haxy_moment == null and session.local == null) return; 2894 const previous_route = session.data.current_page; 2895 // the page we navigated to becomes the current page 2896 session.data.current_page = route; 2897 session.back = .available; 2898 2899 const arena = try allocator.create(std.heap.ArenaAllocator); 2900 arena.* = std.heap.ArenaAllocator.init(allocator); 2901 errdefer freeArena(allocator, arena); 2902 2903 const new_root = try initCurrentRoot(allocator, arena, session); 2904 2905 try self.history.append(allocator, .{ .root = self.root, .route = previous_route, .arena = self.arena, .user_id = self.user_id }); 2906 // drop the oldest entry (freeing its widget tree and arena) once over cap 2907 if (self.history.items.len > max_history) { 2908 var oldest = self.history.orderedRemove(0); 2909 oldest.root.deinit(allocator); 2910 freeArena(allocator, oldest.arena); 2911 } 2912 self.root = new_root; 2913 self.arena = arena; 2914 self.user_id = session.userId(); 2915 } 2916 } 2917 }; 2918 2919 pub fn initRoot(allocator: std.mem.Allocator, page: *const Page, session: *Session) !Widget { 2920 const page_widget: Widget = switch (page.*) { 2921 .home => |*p| .{ .home = try .init(allocator, p, session) }, 2922 .user => |*p| .{ .user = try .init(allocator, p, session) }, 2923 .repo => |*p| .{ .repo = try .init(allocator, p, session) }, 2924 .fork => |*p| .{ .fork = try .init(allocator, p, session) }, 2925 .not_found => .{ .not_found = try .init(allocator, session) }, 2926 }; 2927 2928 chooseAnsiArtForNavigation(session); 2929 2930 // on the TUI/SSH, the page sits above a one-row footer showing its web 2931 // url, when there's a web UI to point at 2932 var root = if (session.is_terminal) blk: { 2933 var box = try wgt.Box(Widget).init(allocator, .{ .border_style = null, .direction = .vert }); 2934 errdefer box.deinit(allocator); 2935 const bg_id = bg_blk: { 2936 var background = try widget.AnsiBackground.init(allocator, page_widget, session); 2937 errdefer background.deinit(allocator); 2938 const id = background.getFocus().id; 2939 try box.children.put(allocator, id, .{ .widget = .{ .background = background }, .rect = null, .min_size = null }); 2940 break :bg_blk id; 2941 }; 2942 if (session.web_port != null) { 2943 var footer = try widget.Footer.init(allocator, session); 2944 errdefer footer.deinit(allocator); 2945 try box.children.put(allocator, footer.getFocus().id, .{ .widget = .{ .footer = footer }, .rect = null, .min_size = .{ .width = null, .height = 1 } }); 2946 } 2947 box.getFocus().child_id = bg_id; 2948 break :blk Widget{ .box = box }; 2949 } else Widget{ .background = try widget.AnsiBackground.init(allocator, page_widget, session) }; 2950 errdefer root.deinit(allocator); 2951 2952 // input-owning views build their TextInputs in init, so reset their 2953 // registrations here 2954 session.text_inputs.clearRetainingCapacity(); 2955 2956 try root.build(allocator, .{ 2957 .min_size = .{ .width = null, .height = 40 }, 2958 .max_size = .{ .width = 100, .height = null }, 2959 }, root.getFocus()); 2960 2961 return root; 2962 } 2963 2964 // native and server-side sessions choose from the embedded collection. WASM 2965 // keeps the art serialized by the server instead. 2966 fn chooseAnsiArtForNavigation(session: *Session) void { 2967 if (comptime ansi_art.art.len == 0) return; 2968 if (session.data.current_page == .not_found) { 2969 session.data.ansi_art = ansi_art.not_found; 2970 return; 2971 } 2972 const io = session.io orelse return; 2973 var random: usize = undefined; 2974 io.random(std.mem.asBytes(&random)); 2975 session.data.ansi_art = ansi_art.art[random % ansi_art.art.len]; 2976 } 2977