╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ Commits.zig ──────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
🬐 🬠 🬞🬂🬏 🬟 🬑 🬟 🬑 ╭271eea99..╮ 271eea99.. see-em: 🬋🬋🬋 🬋🬋🬋 🬋 🬋 │files │ commits refs discuss issues new login 🬐 🬠 🬐 🬠 🬑 🬟 🬰 ╰──────────╯ (281) user
╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯
.. ╭─────────────────────────────────╮ │Commits.zig │ ╰─────────────────────────────────╯ Files.zig Header.zig Issues.zig Refs.zig
447 448 fn contentBox(self: *View) *wgt.Box(ui.Widget) { 449 return &self.box.children.values()[content_index].widget.box; 450 } 451 452 fn listScroll(self: *View) *wgt.Scroll(ui.Widget) { 453 return &self.contentBox().children.values()[list_index].widget.scroll; 454 } 455 456 fn listBox(self: *View) *wgt.Box(ui.Widget) { 457 return &self.listScroll().child.box; 458 } 459 460 fn diffOuter(self: *View) *wgt.Box(ui.Widget) { 461 return &self.contentBox().children.values()[diff_index].widget.box; 462 } 463 464 fn diffScroll(self: *View) *wgt.Scroll(ui.Widget) { 465 return &self.diffOuter().children.values()[0].widget.scroll; 466 } 467 468 fn diffInner(self: *View) *wgt.Box(ui.Widget) { 469 return &self.diffScroll().child.box; 470 } 471 472 fn diffActive(self: *View) bool { 473 const content = self.contentBox(); 474 const cid = content.getFocus().child_id orelse return false; 475 return content.children.getIndex(cid) == diff_index; 476 } 477 478 // the selected commit's index, or null when the "next" row is selected. 479 fn selectedCommitIndex(self: *View) ?usize { 480 const lb = self.listBox(); 481 const cid = lb.getFocus().child_id orelse return null; 482 const idx = lb.children.getIndex(cid) orelse return null; 483 if (idx >= self.data.commits.len) return null; 484 return idx; 485 } 486 487 pub fn build(self: *View, allocator: std.mem.Allocator, constraint: layout.Constraint, root_focus: *Focus) !void { 488 self.clearGrid(); 489 490 // swap the diff pane to the selected commit when it changes. 491 try self.refreshDiff(allocator); 492 493 // mirror the focused commit into the url so it updates as the selection 494 // moves, but only while focus is inside this view (the list or diff). when 495 // focus sits on the header tab, use the page's base /commits route. 496 if (root_focus.grandchild_id) |g| { 497 if (self.box.getFocus().children.contains(g)) { 498 if (self.selectedCommitIndex()) |sel| { 499 // mirror the commit's current diff window so the url stays 500 // linkable (0 for any commit but the windowed start one). 501 if (ui.RoutablePage.repoCommitsRoute(self.data.identity, .object, self.data.commits[sel].oid, self.data.commits[sel].window_start)) |route| 502 self.session.data.current_page = route; 503 } 504 } 505 } 506 507 // the selected list row shows a border (the focused TextBox upgrades it 508 // to a double border itself); the rest stay borderless. 509 const lb = self.listBox(); 510 for (lb.children.keys(), lb.children.values()) |id, *child| { 511 switch (child.widget) { 512 .text_box => |*tb| tb.options.border_style = if (lb.getFocus().child_id == id) .single else .hidden, 513 else => {}, 514 } 515 } 516 517 // the selected hunk (or a window-navigation row) shows a single border 518 // (the focused TextBox upgrades it to a double border itself, so it 519 // stays single when focus is on the commit list); the rest keep their 520 // space-reserving hidden border. 521 const inner = self.diffInner(); 522 for (inner.children.keys(), inner.children.values()) |id, *child| { 523 switch (child.widget) { 524 .text_box => |*tb| tb.options.border_style = if (inner.getFocus().child_id == id) .single else .hidden, 525 else => {}, 526 } 527 } 528 529 // cap the list at list_max_width only while the diff pane fits beside it. 530 // the box drops the diff when the width can't hold both minimums, so when 531 // it's that narrow we lift the cap and let the list fill the whole width. 532 const both_panes_fit = if (constraint.max_size.width) |w| w >= list_max_width + diff_min_width else true; 533 self.contentBox().children.values()[list_index].max_size = if (both_panes_fit) .{ .width = list_max_width, .height = null } else null; 534 535 // stretch the diff pane across the rest of the width so it fills the area 536 // rather than shrinking to its content; its scroll fills the pane. when 537 // too narrow for both, it fills the whole width. 538 if (constraint.max_size.width) |w| { 539 self.contentBox().children.values()[diff_index].min_size = .{ .width = if (both_panes_fit) w - list_max_width else w, .height = null }; 540 } else { 541 self.contentBox().children.values()[diff_index].min_size = .{ .width = diff_min_width, .height = null }; 542 } 543 544 // the web bounds the layout to the browser viewport like the terminal; 545 // each Scroll's web-native mode hands its full content to a real 546 // scrollable element, so we no longer build unbounded here. 547 // 548 // crossing panes only re-selects the content box's child (focusDiff / 549 // focusList); when the window is too narrow to show both, the pane that 550 // held focus is dropped here. the framework recovers focus after the 551 // top-level build by re-deriving it down the selected-child chain, so 552 // there's nothing to fix up afterward. 553 try self.box.build(allocator, constraint, root_focus); 554 } 555 556 fn refreshDiff(self: *View, allocator: std.mem.Allocator) !void { 557 const sel = self.selectedCommitIndex() orelse return; 558 if (self.diffed_index) |d| if (d == sel) return; 559 try self.populateDiff(allocator, sel); 560 self.diffed_index = sel; 561 } 562 563 fn populateDiff(self: *View, allocator: std.mem.Allocator, sel: usize) !void { 564 const commit = self.data.commits[sel]; 565 const inner = self.diffInner(); 566 567 for (inner.children.values()) |*child| child.widget.deinit(allocator); 568 inner.children.clearAndFree(allocator); 569 inner.getFocus().child_id = null; 570 571 // the first row always links to viewing the repo's files at this commit. 572 try self.addViewFilesLink(allocator, inner, commit.oid); 573 574 // a "previous" row and a "next" row at the bottom reload the page on the 575 // adjacent diff window. 576 if (commit.has_prev) try self.addNavLink(allocator, inner, "← previous", commit.oid, commit.window_start -| diff_page); 577 for (commit.hunks) |hunk| { 578 if (hunk.path) |path| try self.addPathBox(allocator, inner, path); 579 try self.addHunkBox(allocator, inner, hunk.lines); 580 } 581 if (commit.has_more) try self.addNavLink(allocator, inner, "next →", commit.oid, commit.window_start + diff_page); 582 583 // point the pane at its first row so focus recovery can land here. 584 if (inner.children.count() > 0) inner.getFocus().child_id = inner.children.keys()[0]; 585 586 // reset the scroll to the top for the newly-shown commit: directly on the 587 // terminal (the wasm offset), and via a version bump on the web (so the 588 // renderer's scroll id changes and JS drops the preserved position). 589 const sc = self.diffScroll(); 590 sc.x = 0; 591 sc.y = 0; 592 sc.getFocus().version +%= 1; 593 } 594 595 pub fn input(self: *View, allocator: std.mem.Allocator, key: Key, root_focus: *Focus) !void { 596 _ = allocator; 597 if (self.diffActive()) { 598 try self.diffInput(key, root_focus); 599 } else { 600 try self.listInput(key, root_focus); 601 } 602 } 603 604 fn listInput(self: *View, key: Key, root_focus: *Focus) !void { 605 // up/down (and the scroll wheel) move the selection a row; page up/down 606 // jump a fixed amount. right/Enter cross into the diff pane. Enter/clicks 607 // on the "next" row become navigation in the host before reaching here. 608 if (inp.rowDelta(key, @intCast(self.listBox().children.count()))) |delta| { 609 ui.moveRowFocus(self.listBox(), self.listScroll(), root_focus, delta); 610 return; 611 } 612 switch (key) { 613 .enter => if (self.selectedCommitIndex() != null) 614 try self.focusDiff(root_focus) 615 else if (self.data.next_start) |next| { 616 if (ui.RoutablePage.repoCommitsRoute(self.data.identity, .object, next, 0)) |route| 617 try self.session.navigate(route); 618 }, 619 .arrow_right => try self.focusDiff(root_focus), 620 else => {}, 621 } 622 } 623 624 fn diffInput(self: *View, key: Key, root_focus: *Focus) !void { 625 const sc = self.diffScroll(); 626 switch (key) { 627 // left scrolls horizontally, then leaves for the list once flush left. 628 .arrow_left => { 629 if (sc.x > 0) { 630 sc.x -= 1; 631 self.diffScroll().clampToContent(); 632 } else try self.focusList(root_focus); 633 }, 634 .arrow_right => { 635 sc.x += 1; 636 self.diffScroll().clampToContent(); 637 }, 638 .arrow_up => try self.moveDiff(root_focus, -1), 639 .arrow_down => try self.moveDiff(root_focus, 1), 640 .page_up => try self.pageDiff(root_focus, -10), 641 .page_down => try self.pageDiff(root_focus, 10), 642 .home => try self.jumpDiff(root_focus, false), 643 .end => try self.jumpDiff(root_focus, true), 644 // Enter / a click on a "previous"/"next" row follow its "a:" link in 645 // the host (it reloads the adjacent window), so they don't reach here. 646 .mouse => |mouse| switch (mouse.action) { 647 .scroll => |dir| try self.moveDiff(root_focus, if (dir == .up) -1 else 1), 648 else => {}, 649 }, 650 else => {}, 651 } 652 } 653 654 // move one step in `delta` (+ down, - up). in the terminal, `delta` is a 655 // line count unless there is a new hunk visible (in which case it is a 656 // hunk count). on the web `delta` is always a hunk count. 657 fn moveDiff(self: *View, root_focus: *Focus, delta: isize) !void { 658 const inner = self.diffInner(); 659 const keys = inner.children.keys(); 660 if (keys.len == 0) return; 661 const cur: usize = if (root_focus.grandchild_id) |g| (inner.children.getIndex(g) orelse 0) else 0; 662 const target = @as(isize, @intCast(cur)) + delta; 663 const in_range = target >= 0 and target < @as(isize, @intCast(keys.len)); 664 665 if (self.session.is_terminal) { 666 if (in_range and self.hunkVisible(@intCast(target))) { 667 root_focus.setFocus(keys[@intCast(target)]); 668 return; 669 } 670 671 const sc = self.diffScroll(); 672 sc.y += delta * 5; // magnify because it's a line count 673 self.diffScroll().clampToContent(); 674 if (in_range and self.hunkVisible(@intCast(target))) { 675 root_focus.setFocus(keys[@intCast(target)]); 676 } 677 } else { 678 if (in_range) { 679 root_focus.setFocus(keys[@intCast(target)]); 680 } 681 } 682 } 683 684 // page a fixed number of lines, then focus the leading visible hunk 685 // (bottom-most when paging down, top-most when paging up). in the 686 // terminal, `delta` is a line count, and on the web it's a hunk count. 687 fn pageDiff(self: *View, root_focus: *Focus, delta: isize) !void { 688 if (self.session.is_terminal) { 689 const sc = self.diffScroll(); 690 sc.y += delta * 5; // magnify because it's a line count 691 self.diffScroll().clampToContent(); 692 try self.focusVisible(root_focus, delta > 0); 693 } else { 694 const inner = self.diffInner(); 695 const keys = inner.children.keys(); 696 if (keys.len == 0) return; 697 const cur: isize = if (root_focus.grandchild_id) |g| @intCast(inner.children.getIndex(g) orelse 0) else 0; 698 const target: usize = @intCast(std.math.clamp(cur + delta, 0, @as(isize, @intCast(keys.len - 1)))); 699 root_focus.setFocus(keys[target]); 700 } 701 } 702 703 // jump to the first or last hunk. on the web the browser scrolls to the 704 // focused hunk; on the terminal pin the scroll to the top/bottom too. 705 fn jumpDiff(self: *View, root_focus: *Focus, to_end: bool) !void { 706 const inner = self.diffInner(); 707 const keys = inner.children.keys(); 708 if (keys.len == 0) return; 709 if (self.session.is_terminal) { 710 const sc = self.diffScroll(); 711 sc.y = if (to_end) std.math.maxInt(isize) else 0; 712 self.diffScroll().clampToContent(); 713 } 714 root_focus.setFocus(if (to_end) keys[keys.len - 1] else keys[0]); 715 } 716 717 // whether hunk `index` is at least partly within the diff viewport, per the 718 // last build's layout rects (content space) and the current scroll offset. 719 fn hunkVisible(self: *View, index: usize) bool { 720 const inner = self.diffInner(); 721 const sc = self.diffScroll(); 722 const vp = sc.grid orelse return false; 723 const r = inner.children.values()[index].rect orelse return false; 724 const top = sc.y; 725 const bottom = sc.y + @as(isize, @intCast(vp.size.height)); 726 return (r.y + @as(isize, @intCast(r.size.height))) > top and r.y < bottom; 727 } 728 729 // focus the visible hunk at the scroll's leading edge. `prefer_last` picks 730 // the bottom-most visible (for downward motion), else the top-most. 731 fn focusVisible(self: *View, root_focus: *Focus, prefer_last: bool) !void { 732 const inner = self.diffInner(); 733 const sc = self.diffScroll(); 734 const vp = sc.grid orelse return; 735 const top = sc.y; 736 const bottom = sc.y + @as(isize, @intCast(vp.size.height)); 737 var chosen: ?usize = null; 738 for (inner.children.keys(), inner.children.values()) |id, *child| { 739 const r = child.rect orelse continue; // content-space layout rect 740 const r_top = r.y; 741 const r_bot = r.y + @as(isize, @intCast(r.size.height)); 742 if (r_bot <= top or r_top >= bottom) continue; // not visible 743 chosen = id; 744 if (!prefer_last) break; // first visible 745 } 746 if (chosen) |id| root_focus.setFocus(id); 747 } 748 749 // enter the diff pane. the host arrives here on right-arrow or Enter from the 750 // list. a diff with no rows can't be entered. setFocus handles the too-narrow 751 // case where the pane isn't laid out yet (it gets selected, then focused after 752 // the next build, landing on its remembered hunk). 753 fn focusDiff(self: *View, root_focus: *Focus) !void { 754 if (self.diffInner().children.count() == 0) return; 755 root_focus.setFocus(self.diffOuter().getFocus().id); 756 } 757 758 // return to the list. 759 fn focusList(self: *View, root_focus: *Focus) !void { 760 root_focus.setFocus(self.listScroll().getFocus().id); 761 } 762 763 pub fn clearGrid(self: *View) void { 764 self.box.clearGrid(); 765 } 766 767 pub fn getGrid(self: View) ?Grid { 768 return self.box.getGrid(); 769 } 770 771 pub fn getFocus(self: *View) *Focus { 772 return self.box.getFocus(); 773 } 774 775 // for the parent's "scroll up at the top jumps to the header" check. in the 776 // diff pane that means the first hunk is focused and the diff can't scroll up 777 // any further; otherwise up-arrow stays in the pane (scrolling or moving 778 // between hunks). when the list holds focus, report its selection directly. 779 pub fn getSelectedIndex(self: *View) ?usize { 780 if (self.diffActive()) { 781 const inner = self.diffInner(); 782 const cid = inner.getFocus().child_id orelse return 1; 783 const first_focused = inner.children.count() > 0 and cid == inner.children.keys()[0]; 784 return if (first_focused and self.diffScroll().y == 0) 0 else 1; 785 } 786 const lb = self.listBox(); 787 const cid = lb.getFocus().child_id orelse return null; 788 return lb.children.getIndex(cid); 789 } 790 }; 791 792 // the "a:" navigation link for the commits page walking from commit `oid` within 793 // `identity`, showing the selected commit's first `start` hunks (0 = default). 794 fn commitsLink(page_arena: *std.heap.ArenaAllocator, identity: []const u8, oid: []const u8, start: usize) ![]const u8 { 795 const route = ui.RoutablePage.repoCommitsRoute(identity, .object, oid, start) orelse return error.RouteTooLong; 796 const url = try route.toUrl(page_arena); 797 return std.fmt.allocPrint(page_arena.allocator(), "a:{s}", .{url}); 798 } 799 800 // the "a:" link to the files tab at commit `oid` (an object ref), at its root 801 // directory, within `identity` ("owner/name"). 802 fn filesObjectLink(page_arena: *std.heap.ArenaAllocator, identity: []const u8, oid: []const u8) ![]const u8 { 803 const route = ui.RoutablePage.repoFilesRoute(identity, .object, oid, "", 0) orelse return error.RouteTooLong; 804 const url = try route.toUrl(page_arena); 805 return std.fmt.allocPrint(page_arena.allocator(), "a:{s}", .{url}); 806 } 807 808 // the in-page "ai:" anchor for selecting `oid` in `identity`'s commit list. it 809 // points at the same route as commitsLink but the "ai:" prefix keeps wasm clicks 810 // in-page (crossPageLink ignores it); the href is only followed with js off. 811 fn commitRowLink(page_arena: *std.heap.ArenaAllocator, identity: []const u8, oid: []const u8) ![]const u8 { 812 const route = ui.RoutablePage.repoCommitsRoute(identity, .object, oid, 0) orelse return error.RouteTooLong; 813 const url = try route.toUrl(page_arena); 814 return std.fmt.allocPrint(page_arena.allocator(), "ai:{s}", .{url}); 815 } 816 817 // the "viewing <ref_or_oid> <value>" banner shown above the log. 818 pub const Header = struct { 819 content: []const u8, 820 821 pub fn init(aa: std.mem.Allocator, ref_or_oid: ui.RoutablePage.RefOrOid, value: []const u8) !Header { 822 return .{ 823 .content = try std.fmt.allocPrint(aa, "viewing {s} {s}", .{ @tagName(ref_or_oid), value }), 824 }; 825 } 826 827 pub const View = struct { 828 box: wgt.Box(ui.Widget), 829 data: *const Header, 830 831 pub fn init(allocator: std.mem.Allocator, data: *const Header, session: *ui.Session) !Header.View { 832 _ = session; 833 var box = try wgt.Box(ui.Widget).init(allocator, .{ .border_style = null, .direction = .horiz }); 834 errdefer box.deinit(allocator); 835 836 var text_box = try wgt.TextBox(ui.Widget).init(allocator, data.content, .{ .border_style = .hidden, .wrap_kind = .none }); 837 errdefer text_box.deinit(allocator); 838 try box.children.put(allocator, text_box.getFocus().id, .{ .widget = .{ .text_box = text_box }, .rect = null, .min_size = null }); 839 840 return .{ .box = box, .data = data }; 841 } 842 843 pub fn deinit(self: *Header.View, allocator: std.mem.Allocator) void { 844 self.box.deinit(allocator); 845 } 846 847 pub fn build(self: *Header.View, allocator: std.mem.Allocator, constraint: layout.Constraint, root_focus: *Focus) !void { 848 self.clearGrid(); 849 try self.box.build(allocator, constraint, root_focus); 850 } 851 852 pub fn input(self: *Header.View, allocator: std.mem.Allocator, key: Key, root_focus: *Focus) !void { 853 _ = self; 854 _ = allocator; 855 _ = key; 856 _ = root_focus; 857 } 858 859 pub fn clearGrid(self: *Header.View) void { 860 self.box.clearGrid(); 861 } 862 863 pub fn getGrid(self: Header.View) ?Grid { 864 return self.box.getGrid(); 865 } 866 867 pub fn getFocus(self: *Header.View) *Focus { 868 return self.box.getFocus(); 869 } 870 }; 871 }; 872