╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ Files.zig ────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
🬐 🬠 🬞🬂🬏 🬟 🬑 🬟 🬑 ╭f2d7fb1b..╮ f2d7fb1b.. see-em: 🬋🬋🬋 🬋🬋🬋 🬋 🬋 │files │ commits refs discuss issues new login 🬐 🬠 🬐 🬠 🬑 🬟 🬰 ╰──────────╯ (525) user
╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯
.. Attachment.zig Comment.zig Commits.zig Diff.zig Discussions.zig Events.zig ╭─────────────────────────────────╮ │Files.zig │ ╰─────────────────────────────────╯ Header.zig Issues.zig Patches.zig Refs.zig
556 557 // the entry the selected row points at, or null for the ".." row (which 558 // isn't an entry). directory rows return their entry too, though they carry 559 // no contents. 560 fn selectedEntry(self: *View) ?Entry { 561 const idx = self.selectedRowIndex() orelse return null; 562 const base: usize = if (self.data.dir.len != 0) 1 else 0; // skip the ".." row 563 if (idx < base) return null; 564 const e = idx - base; 565 if (e >= self.data.entries.len) return null; 566 return self.data.entries[e]; 567 } 568 569 pub fn build(self: *View, allocator: std.mem.Allocator, constraint: layout.Constraint, root_focus: *Focus) !void { 570 self.clearGrid(); 571 572 // swap the detail pane to the selected entry when the selection changes. 573 try self.refreshDetail(allocator); 574 575 // the selected list row shows a border (the focused TextBox upgrades it 576 // to a double border itself); the rest stay borderless. 577 const lb = self.listBox(); 578 for (lb.children.keys(), lb.children.values()) |id, *child| { 579 switch (child.widget) { 580 .text_box => |*tb| tb.options.border_style = if (lb.getFocus().child_id == id) .single else .hidden, 581 else => {}, 582 } 583 } 584 585 // the content scroll's border is single normally and double when the 586 // content is focused (the content box itself is borderless). 587 const has_content = self.detailInner().children.count() > 0; 588 const content_focused = if (root_focus.grandchild_id) |g| self.detailInner().children.contains(g) else false; 589 self.detailScrollFrame().options.border_style = if (!has_content) null else if (content_focused) .double else .single; 590 591 // cap the list at list_max_width only while the detail pane fits beside 592 // it. the box drops the detail pane when the width can't hold both 593 // minimums, so when it's that narrow we lift the cap and let the list 594 // fill the whole width. 595 const both_panes_fit = if (constraint.max_size.width) |w| w >= list_max_width + detail_min_width else true; 596 self.contentBox().children.values()[list_index].max_size = if (both_panes_fit) .{ .width = list_max_width, .height = null } else null; 597 598 // stretch the detail pane and its bordered scroll frame across the rest 599 // of the width so the pane fills the area rather than shrinking to its 600 // content, like the refs view's columns. the content scroll inside keeps 601 // its natural width: forcing it to the full inner width would make it one 602 // column too wide whenever the vertical scrollbar appears, leaving a 603 // phantom horizontal scroll. (height fills via the scroll clipping to the 604 // viewport.) 605 if (constraint.max_size.width) |w| { 606 const detail_w = if (both_panes_fit) w - list_max_width else w; 607 self.contentBox().children.values()[detail_index].min_size = .{ .width = detail_w, .height = null }; 608 self.detailOuter().children.values()[detail_scroll_index].min_size = .{ .width = detail_w, .height = null }; 609 } else { 610 self.contentBox().children.values()[detail_index].min_size = .{ .width = detail_min_width, .height = null }; 611 self.detailOuter().children.values()[detail_scroll_index].min_size = null; 612 } 613 614 // crossing panes only re-selects the content box's child (focusList / 615 // focusDetail); when the window is too narrow to show both, the pane that 616 // was holding focus is dropped here. the framework recovers focus after 617 // the top-level build by re-deriving it down the selected-child chain, so 618 // there's nothing to fix up afterward. 619 try self.box.build(allocator, constraint, root_focus); 620 621 // clamp the list's initial offset (a selected row near the end of the 622 // list) against this build's grids, for the next frame. initRoot's 623 // pre-sizing build is unbounded — its full-content "viewport" would 624 // clamp the offset to zero, so only a bounded build counts. 625 if (constraint.max_size.height != null) self.listScroll().clampToContent(); 626 } 627 628 fn refreshDetail(self: *View, allocator: std.mem.Allocator) !void { 629 const cur = self.selectedRowIndex(); 630 if (std.meta.eql(cur, self.shown_index)) return; 631 try self.populateDetail(allocator); 632 self.shown_index = cur; 633 } 634 635 fn populateDetail(self: *View, allocator: std.mem.Allocator) !void { 636 const nav_box = self.navBox(); 637 const inner = self.detailInner(); 638 639 for (nav_box.children.values()) |*child| child.widget.deinit(allocator); 640 nav_box.children.clearAndFree(allocator); 641 nav_box.getFocus().child_id = null; 642 for (inner.children.values()) |*child| child.widget.deinit(allocator); 643 inner.children.clearAndFree(allocator); 644 inner.getFocus().child_id = null; 645 646 // only files have contents to show; directories and the ".." row leave 647 // the pane empty. 648 if (self.selectedEntry()) |entry| { 649 if (!entry.is_dir) { 650 // the window links sit above the scroll, so they stay put 651 // while the content scrolls. 652 if (entry.window_start > 0) try self.addNavLink(allocator, nav_box, "scroll to top", entry, 0); 653 if (entry.has_more) try self.addNavLink(allocator, nav_box, "next lines →", entry, lineNumber(entry.window_start + file_page)); 654 if (!entry.loaded) { 655 // the placeholder carries the file's "a:" link, so enter 656 // (or a click) here loads the file like on its list row. 657 const path = try childDir(self.session.page_arena.allocator(), self.data.dir, entry.name); 658 const link = try fileLink(self.session.page_arena, self.data, path, false, 0); 659 try self.addContentBox(allocator, inner, "(press enter to load this file)", link); 660 } else if (entry.is_binary) { 661 try self.addContentBox(allocator, inner, "(binary file)", ""); 662 } else { 663 const text = try numberedContent(self.session.page_arena.allocator(), entry.lines, entry.window_start); 664 try self.addContentBox(allocator, inner, text, ""); 665 } 666 } 667 } 668 // point each box at its first child so focus can descend into it. 669 if (nav_box.children.count() > 0) nav_box.getFocus().child_id = nav_box.children.keys()[0]; 670 if (inner.children.count() > 0) inner.getFocus().child_id = inner.children.keys()[0]; 671 672 // reserve the nav row's height (the shrink scroll frame yields it). 673 self.detailOuter().children.values()[detail_nav_index].min_size = 674 if (nav_box.children.count() > 0) .{ .width = null, .height = row_height } else null; 675 676 // reset the scroll to the top for the newly-shown file: directly on the 677 // terminal (the wasm offset), and via a version bump on the web (so the 678 // renderer's scroll id changes and JS drops the preserved position). 679 const sc = self.detailScroll(); 680 sc.x = 0; 681 sc.y = 0; 682 sc.getFocus().version +%= 1; 683 } 684 685 // a focusable "next" link above the content. it's an `a:` link to the 686 // selected file at `target_start`, so activating it (the host follows the 687 // link) reloads the page on the next window. 688 fn addNavLink(self: *View, allocator: std.mem.Allocator, box: *wgt.Box(ui.Widget), label: []const u8, entry: Entry, target_start: usize) !void { 689 const page_arena = self.session.page_arena; 690 const path = try childDir(page_arena.allocator(), self.data.dir, entry.name); 691 const route = self.data.filesRoute(path, target_start) orelse return error.RouteTooLong; 692 const link = try std.fmt.allocPrint(page_arena.allocator(), "a:{s}", .{try route.toUrl(page_arena)}); 693 var tb = try wgt.TextBox.init(allocator, label, .{ .border_style = .single, .rounded_corners = true, .wrap_kind = .none }); 694 errdefer tb.deinit(allocator); 695 tb.getFocus().mode = .all; 696 tb.getFocus().kind = .{ .custom = link }; 697 try box.children.put(allocator, tb.getFocus().id, .{ .widget = .{ .text_box = tb }, .rect = null, .min_size = null }); 698 } 699 700 pub fn input(self: *View, allocator: std.mem.Allocator, key: Key, root_focus: *Focus) !void { 701 if (self.headerActive()) { 702 if (key == .arrow_down) { 703 root_focus.setFocus(self.contentBox().getFocus().id); 704 return; 705 } 706 if (key == .enter) if (try self.header().submittedText(allocator)) |term| { 707 defer allocator.free(term); 708 return self.submit(term); 709 }; 710 return self.header().input(allocator, key, root_focus); 711 } 712 if (key == .arrow_up and self.contentAtTop() and self.header().focusHeader(root_focus)) return; 713 if (self.detailActive()) { 714 try self.detailInput(key, root_focus); 715 } else { 716 try self.listInput(key, root_focus); 717 } 718 } 719 720 // navigate to the typed term's results, pinned to the listing's ref. an 721 // empty term leaves the results for the plain listing. 722 fn submit(self: *View, term: []const u8) !void { 723 if (term.len == 0 and self.data.find == null) return; 724 const route = self.data.filesRoute("", 0) orelse return; 725 try self.session.navigate(route.withFind(term) orelse return); 726 } 727 728 fn listInput(self: *View, key: Key, root_focus: *Focus) !void { 729 // up/down (and the scroll wheel) move the selection; page up/down jump a 730 // fixed amount. right/Enter cross into the detail pane. Enter/clicks on a 731 // directory (or "..") row are turned into navigation by the host 732 // (crossPageLink) before reaching here. 733 if (inp.rowDelta(key, @intCast(self.listBox().children.count()))) |delta| { 734 ui.widget.moveRowFocus(self.listBox(), self.listScroll(), root_focus, delta); 735 return; 736 } 737 switch (key) { 738 .enter, .arrow_right => try self.focusDetail(root_focus), 739 else => {}, 740 } 741 } 742 743 // whether focus is on the content box (vs. a "previous"/"next" nav link). 744 fn focusOnContent(self: *View, root_focus: *Focus) bool { 745 const g = root_focus.grandchild_id orelse return false; 746 return self.detailInner().children.contains(g); 747 } 748 749 fn detailInput(self: *View, key: Key, root_focus: *Focus) !void { 750 const sc = self.detailScroll(); 751 const on_content = self.focusOnContent(root_focus); 752 // the "next" link sits above the content scroll. on the link, left returns 753 // to the file list and down drops into the content. in the content, the 754 // terminal scrolls by offset and reaching the top then pressing up crosses 755 // back up to the link; on the web vertical scrolling is the browser's job 756 // so up just crosses to the link. 757 switch (key) { 758 .arrow_left => { 759 if (on_content) { 760 if (sc.x > 0) { 761 sc.x -= 1; 762 self.detailScroll().clampToContent(); 763 } else try self.focusList(root_focus); 764 } else if (!self.moveNav(root_focus, -1)) { 765 try self.focusList(root_focus); 766 } 767 }, 768 .arrow_right => { 769 if (on_content) { 770 sc.x += 1; 771 self.detailScroll().clampToContent(); 772 } else _ = self.moveNav(root_focus, 1); 773 }, 774 .arrow_up => { 775 if (on_content) { 776 if (self.session.is_terminal and sc.y > 0) { 777 sc.y -= 1; 778 self.detailScroll().clampToContent(); 779 } else self.focusNav(root_focus); // cross up to the links 780 } 781 }, 782 .arrow_down => { 783 if (on_content) { 784 if (self.session.is_terminal) { 785 sc.y += 1; 786 self.detailScroll().clampToContent(); 787 } 788 } else self.focusContent(root_focus); // links -> content 789 }, 790 .page_up => if (on_content and self.session.is_terminal) { 791 sc.y -= 10; 792 self.detailScroll().clampToContent(); 793 }, 794 .page_down => if (on_content and self.session.is_terminal) { 795 sc.y += 10; 796 self.detailScroll().clampToContent(); 797 }, 798 .home => if (on_content and self.session.is_terminal) { 799 sc.y = 0; 800 self.detailScroll().clampToContent(); 801 }, 802 .end => if (on_content and self.session.is_terminal) { 803 sc.y = std.math.maxInt(isize); 804 self.detailScroll().clampToContent(); 805 }, 806 .mouse => |mouse| switch (mouse.action) { 807 .scroll => |dir| if (on_content and self.session.is_terminal) { 808 sc.y += if (dir == .up) -5 else 5; 809 self.detailScroll().clampToContent(); 810 }, 811 else => {}, 812 }, 813 else => {}, 814 } 815 } 816 817 // focus the first (left-most) nav link; a no-op when there are none, leaving 818 // focus on the content. 819 fn focusNav(self: *View, root_focus: *Focus) void { 820 const nav_box = self.navBox(); 821 if (nav_box.children.count() == 0) return; 822 root_focus.setFocus(nav_box.children.keys()[0]); 823 } 824 825 fn focusContent(self: *View, root_focus: *Focus) void { 826 const inner = self.detailInner(); 827 const id = inner.getFocus().child_id orelse (if (inner.children.count() > 0) inner.children.keys()[0] else return); 828 root_focus.setFocus(id); 829 } 830 831 // move focus `delta` rows within the nav box; returns false (without moving) 832 // when that would step off either end. 833 fn moveNav(self: *View, root_focus: *Focus, delta: isize) bool { 834 const nav_box = self.navBox(); 835 const keys = nav_box.children.keys(); 836 const cur_id = nav_box.getFocus().child_id orelse return false; 837 const cur: isize = @intCast(nav_box.children.getIndex(cur_id) orelse return false); 838 const target = cur + delta; 839 if (target < 0 or target >= @as(isize, @intCast(keys.len))) return false; 840 root_focus.setFocus(keys[@intCast(target)]); 841 return true; 842 } 843 844 // enter the detail pane, landing on the "next" link when there is one (so 845 // right-arrow reaches it), else on the content. a directory or ".." row has 846 // neither, so there's nothing to enter. selecting the frame's child (then 847 // focusing the frame) also handles the too-narrow case where the pane isn't 848 // laid out yet — focus lands inside it after the next build. 849 fn focusDetail(self: *View, root_focus: *Focus) !void { 850 const frame = self.detailOuter(); 851 if (self.navBox().children.count() > 0) { 852 frame.getFocus().child_id = self.navBox().getFocus().id; 853 } else if (self.detailInner().children.count() > 0) { 854 frame.getFocus().child_id = self.detailScrollFrame().getFocus().id; 855 } else return; 856 root_focus.setFocus(frame.getFocus().id); 857 } 858 859 // return to the list. 860 fn focusList(self: *View, root_focus: *Focus) !void { 861 root_focus.setFocus(self.listScroll().getFocus().id); 862 } 863 864 pub fn clearGrid(self: *View) void { 865 self.box.clearGrid(); 866 } 867 868 pub fn getGrid(self: View) ?Grid { 869 return self.box.getGrid(); 870 } 871 872 pub fn getFocus(self: *View) *Focus { 873 return self.box.getFocus(); 874 } 875 876 fn contentAtTop(self: *View) bool { 877 if (self.detailActive()) { 878 if (self.detailOuter().getFocus().child_id == self.navBox().getFocus().id) return true; 879 return self.navBox().children.count() == 0 and 880 (!self.session.is_terminal or self.detailScroll().y == 0); 881 } 882 const lb = self.listBox(); 883 const cid = lb.getFocus().child_id orelse return true; 884 return lb.children.getIndex(cid) == 0; 885 } 886 887 // only the header's own row sits directly below the repository header. 888 pub fn atTop(self: *View) bool { 889 return self.headerActive() or (!self.header().hasFocusable() and self.contentAtTop()); 890 } 891 892 pub fn focusHeader(self: *View, root_focus: *Focus) bool { 893 return self.header().focusHeader(root_focus); 894 } 895 }; 896 897 // join `lines` into one string, each prefixed with its 1-based file line number 898 // (right-aligned in a column wide enough for the last number, then a space), 899 // like the diffs view. `start` is the window's 0-based first line, so numbers 900 // continue across paginated windows. 901 fn numberedContent(arena: std.mem.Allocator, lines: []const []const u8, start: usize) ![]const u8 { 902 if (lines.len == 0) return ""; 903 const width = std.fmt.count("{d}", .{start + lines.len}); 904 const indent = try arena.alloc(u8, width); 905 @memset(indent, ' '); 906 907 var out: std.ArrayList(u8) = .empty; 908 for (lines, 0..) |line, i| { 909 if (i != 0) try out.append(arena, '\n'); 910 const num_str = try std.fmt.allocPrint(arena, "{d}", .{start + i + 1}); 911 try out.appendSlice(arena, indent[0 .. width - num_str.len]); 912 try out.appendSlice(arena, num_str); 913 try out.append(arena, ' '); 914 try out.appendSlice(arena, line); 915 } 916 return out.toOwnedSlice(arena); 917 } 918 919 // the index of the "README"/"README.md" file entry (case-insensitive), or null 920 // if none. used to pick the default selection at the repo root. 921 fn readmeIndex(entries: []const Entry) ?usize { 922 for (entries, 0..) |entry, i| { 923 if (!entry.is_dir and isReadme(entry.name)) return i; 924 } 925 return null; 926 } 927 928 fn isReadme(name: []const u8) bool { 929 return std.ascii.eqlIgnoreCase(name, "README") or std.ascii.eqlIgnoreCase(name, "README.md"); 930 } 931 932 // the index of the entry the route named (data.selected_file), or null if none. 933 fn selectedFileIndex(data: *const Self) ?usize { 934 const name = data.selected_file orelse return null; 935 for (data.entries, 0..) |entry, i| { 936 if (!entry.is_dir and std.mem.eql(u8, entry.name, name)) return i; 937 } 938 return null; 939 } 940 941 // an "a:" link to the files route at `path`, pinned to the listing's ref, so 942 // following it navigates to that directory's listing. 943 fn dirLink(page_arena: *std.heap.ArenaAllocator, data: *const Self, path: []const u8) ![]const u8 { 944 const route = data.filesRoute(path, 0) orelse return error.RouteTooLong; 945 return std.fmt.allocPrint(page_arena.allocator(), "a:{s}", .{try route.toUrl(page_arena)}); 946 } 947 948 // a link to the file's route. a preloaded file gets an "ai:" link 949 // (crossPageLink ignores it, so a click selects the row in place and shows its 950 // contents); an unloaded file gets an "a:" link, so activating it reloads the 951 // page with that file selected and its content read. 952 fn fileLink(page_arena: *std.heap.ArenaAllocator, data: *const Self, path: []const u8, loaded: bool, line: usize) ![]const u8 { 953 const route = data.filesRoute(path, line) orelse return error.RouteTooLong; 954 const prefix = if (loaded) "ai:" else "a:"; 955 return std.fmt.allocPrint(page_arena.allocator(), "{s}{s}", .{ prefix, try route.toUrl(page_arena) }); 956 } 957 958 // the url `line` value for a content window: its first line's 1-based number, 959 // except the first window, which serializes as unset (0). 960 fn lineNumber(window_start: usize) usize { 961 return if (window_start == 0) 0 else window_start + 1; 962 } 963 964 // `dir`/`name`, or just `name` at the root. 965 pub fn childDir(arena: std.mem.Allocator, dir: []const u8, name: []const u8) ![]const u8 { 966 return if (dir.len == 0) name else std.fmt.allocPrint(arena, "{s}/{s}", .{ dir, name }); 967 } 968 969 // `dir` with its last segment removed ("" when `dir` has a single segment). 970 fn parentDir(dir: []const u8) []const u8 { 971 const slash = std.mem.lastIndexOfScalar(u8, dir, '/') orelse return ""; 972 return dir[0..slash]; 973 } 974 975 // a search result's bottom label: the directory it sits in, empty at the root. 976 // a directory too wide for the list column is clipped from the left. 977 fn resultDirLabel(aa: std.mem.Allocator, path: []const u8) ![]const u8 { 978 const slash = std.mem.lastIndexOfScalar(u8, path, '/') orelse return ""; 979 const dir = path[0..slash]; 980 // the row's border and the label's padding take two columns each 981 const max_width = View.list_max_width - 4; 982 var width = try xitui.width.displayWidth(dir); 983 if (width <= max_width) return std.fmt.allocPrint(aa, " {s} ", .{dir}); 984 985 const ellipsis = ".."; 986 var iter = (try std.unicode.Utf8View.init(dir)).iterator(); 987 var start: usize = 0; 988 while (width > max_width - ellipsis.len) { 989 const slice = iter.nextCodepointSlice() orelse break; 990 width -= xitui.width.cellWidth(try std.unicode.utf8Decode(slice)); 991 start += slice.len; 992 } 993 return std.fmt.allocPrint(aa, " " ++ ellipsis ++ "{s} ", .{dir[start..]}); 994 } 995