╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ ui.zig ───────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
🬐 🬠 🬞🬂🬏 🬟 🬑 🬟 🬑 ╭8ef2759e..╮ 8ef2759e.. see-em: 🬋🬋🬋 🬋🬋🬋 🬋 🬋 │files │ commits refs discuss issues new login 🬐 🬠 🬐 🬠 🬑 🬟 🬰 ╰──────────╯ (511) user
╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯
.. embed/ event/ test/ ui/ command.zig diff3.zig event.zig fork.zig lib.zig main.zig main_wasm.zig patch.zig push.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
1434 return repoEventsRoute(pair, .active, kind, event_id); 1435 } 1436 if (std.mem.eql(u8, tab, files_seg)) { 1437 params.scanPairs(&segments) catch return null; 1438 if (params.values.get(.patchrev)) |id| { 1439 if (!params.only(&.{ .line, .patchrev })) return null; 1440 return repoPatchRevFilesRoute(pair, id, pathValue(segments.rest()) orelse return null, params.line() orelse return null); 1441 } 1442 if (!params.only(&.{ .line, .branch, .tag, .object })) return null; 1443 const line = params.line() orelse return null; 1444 const dir = pathValue(segments.rest()) orelse return null; 1445 const ref = (params.ref() catch return null) orelse 1446 return if (dir.len == 0) repoFilesRoute(pair, null, "", "", line) else null; 1447 return repoFilesRoute(pair, ref.kind, ref.value, dir, line); 1448 } 1449 if (std.mem.eql(u8, tab, commits_seg)) { 1450 params.scanPairs(&segments) catch return null; 1451 if (!params.only(&.{ .start, .branch, .tag, .object, .base })) return null; 1452 const base_oid = params.values.get(.base) orelse ""; 1453 const start = params.start() orelse return null; 1454 const ref = (params.ref() catch return null) orelse { 1455 const file = pathValue(segments.rest()) orelse return null; 1456 return if (file.len == 0) repoCommitsRoute(pair, null, "", start, "", base_oid) else null; 1457 }; 1458 // the message page has no diff window or file filter 1459 if (std.mem.eql(u8, segments.rest(), message_seg)) 1460 return if (start == 0) repoCommitMessageRoute(pair, ref.kind, ref.value, base_oid) else null; 1461 const file = pathValue(segments.rest()) orelse return null; 1462 return repoCommitsRoute(pair, ref.kind, ref.value, start, file, base_oid); 1463 } 1464 if (std.mem.eql(u8, tab, "diff")) { 1465 params.scanPairs(&segments) catch return null; 1466 if (params.values.get(.patchrev)) |id| { 1467 if (!params.only(&.{ .start, .patchrev })) return null; 1468 return repoPatchRevDiffRoute(pair, id, params.start() orelse return null, pathValue(segments.rest()) orelse return null); 1469 } 1470 if (!params.only(&.{ .start, .branch, .tag, .object, .base })) return null; 1471 const base_oid = params.values.get(.base) orelse return null; 1472 const start = params.start() orelse return null; 1473 const ref = params.ref() catch return null; 1474 const file = pathValue(segments.rest()) orelse return null; 1475 return repoDiffRoute(pair, if (ref) |r| r.kind else null, if (ref) |r| r.value else "", start, file, base_oid); 1476 } 1477 return null; // unknown sub-path 1478 } 1479 1480 pub fn eql(a: RoutablePage, b: RoutablePage) bool { 1481 if (std.meta.activeTag(a) != std.meta.activeTag(b)) return false; 1482 return switch (a) { 1483 .home_users => |a_start| a_start == b.home_users, 1484 .home_repos => |a_start| a_start == b.home_repos, 1485 .user_repos => |a_u| std.mem.eql(u8, a_u.name.slice(), b.user_repos.name.slice()) and a_u.start == b.user_repos.start, 1486 .user_forks => |a_u| std.mem.eql(u8, a_u.name.slice(), b.user_forks.name.slice()) and a_u.start == b.user_forks.start, 1487 .user_settings => |a_name| std.mem.eql(u8, a_name.slice(), b.user_settings.slice()), 1488 .user_auth => |a_name| std.mem.eql(u8, a_name.slice(), b.user_auth.slice()), 1489 .repo_files => |a_f| std.mem.eql(u8, a_f.name.slice(), b.repo_files.name.slice()) and 1490 a_f.ref_kind == b.repo_files.ref_kind and 1491 std.mem.eql(u8, a_f.ref_value.slice(), b.repo_files.ref_value.slice()) and 1492 std.mem.eql(u8, a_f.patchrev_id.slice(), b.repo_files.patchrev_id.slice()) and 1493 std.mem.eql(u8, a_f.path.slice(), b.repo_files.path.slice()) and 1494 a_f.line == b.repo_files.line, 1495 .repo_commits => |a_c| std.mem.eql(u8, a_c.name.slice(), b.repo_commits.name.slice()) and 1496 a_c.ref_or_oid == b.repo_commits.ref_or_oid and 1497 std.mem.eql(u8, a_c.value.slice(), b.repo_commits.value.slice()) and 1498 std.mem.eql(u8, a_c.base_oid.slice(), b.repo_commits.base_oid.slice()) and 1499 switch (a_c.content) { 1500 .diff => |a_d| switch (b.repo_commits.content) { 1501 .diff => |b_d| a_d.start == b_d.start and std.mem.eql(u8, a_d.path.slice(), b_d.path.slice()), 1502 .message => false, 1503 }, 1504 .message => std.meta.activeTag(b.repo_commits.content) == .message, 1505 }, 1506 .repo_diff => |a_d| std.mem.eql(u8, a_d.name.slice(), b.repo_diff.name.slice()) and 1507 a_d.ref_or_oid == b.repo_diff.ref_or_oid and 1508 std.mem.eql(u8, a_d.value.slice(), b.repo_diff.value.slice()) and 1509 std.mem.eql(u8, a_d.base_oid.slice(), b.repo_diff.base_oid.slice()) and 1510 std.mem.eql(u8, a_d.patchrev_id.slice(), b.repo_diff.patchrev_id.slice()) and 1511 a_d.start == b.repo_diff.start and std.mem.eql(u8, a_d.path.slice(), b.repo_diff.path.slice()), 1512 .repo_refs => |a_r| std.mem.eql(u8, a_r.name.slice(), b.repo_refs.name.slice()) and a_r.kind == b.repo_refs.kind and std.mem.eql(u8, a_r.from.slice(), b.repo_refs.from.slice()), 1513 .repo_issues => |a_i| std.mem.eql(u8, a_i.name.slice(), b.repo_issues.name.slice()) and 1514 std.mem.eql(u8, a_i.tag.slice(), b.repo_issues.tag.slice()) and 1515 std.mem.eql(u8, a_i.selected.slice(), b.repo_issues.selected.slice()) and 1516 std.mem.eql(u8, a_i.theirs.slice(), b.repo_issues.theirs.slice()) and 1517 a_i.view == b.repo_issues.view and 1518 a_i.comments_start == b.repo_issues.comments_start and 1519 std.mem.eql(u8, a_i.comment.slice(), b.repo_issues.comment.slice()), 1520 .repo_discussions => |a_t| std.mem.eql(u8, a_t.name.slice(), b.repo_discussions.name.slice()) and 1521 std.mem.eql(u8, a_t.tag.slice(), b.repo_discussions.tag.slice()) and 1522 std.mem.eql(u8, a_t.selected.slice(), b.repo_discussions.selected.slice()) and 1523 a_t.view == b.repo_discussions.view and 1524 a_t.comments_start == b.repo_discussions.comments_start and 1525 std.mem.eql(u8, a_t.comment.slice(), b.repo_discussions.comment.slice()), 1526 .repo_patches => |a_p| std.mem.eql(u8, a_p.name.slice(), b.repo_patches.name.slice()) and 1527 std.mem.eql(u8, a_p.tag.slice(), b.repo_patches.tag.slice()) and 1528 std.mem.eql(u8, a_p.selected.slice(), b.repo_patches.selected.slice()) and 1529 std.mem.eql(u8, a_p.theirs.slice(), b.repo_patches.theirs.slice()) and 1530 a_p.view == b.repo_patches.view and 1531 a_p.comments_start == b.repo_patches.comments_start and 1532 std.mem.eql(u8, a_p.comment.slice(), b.repo_patches.comment.slice()), 1533 .repo_events => |a_e| std.mem.eql(u8, a_e.name.slice(), b.repo_events.name.slice()) and 1534 a_e.view == b.repo_events.view and 1535 a_e.kind == b.repo_events.kind and 1536 std.mem.eql(u8, a_e.selected.slice(), b.repo_events.selected.slice()), 1537 .repo_settings => |a_name| std.mem.eql(u8, a_name.slice(), b.repo_settings.slice()), 1538 .repo_auth => |a_name| std.mem.eql(u8, a_name.slice(), b.repo_auth.slice()), 1539 .fork_patch => |a_f| std.mem.eql(u8, a_f.name.slice(), b.fork_patch.name.slice()) and std.mem.eql(u8, a_f.id.slice(), b.fork_patch.id.slice()), 1540 .fork_diff => |a_d| std.mem.eql(u8, a_d.fork.name.slice(), b.fork_diff.fork.name.slice()) and 1541 std.mem.eql(u8, a_d.fork.id.slice(), b.fork_diff.fork.id.slice()) and 1542 a_d.start == b.fork_diff.start and std.mem.eql(u8, a_d.path.slice(), b.fork_diff.path.slice()), 1543 .fork_files => |a_f| std.mem.eql(u8, a_f.fork.name.slice(), b.fork_files.fork.name.slice()) and 1544 std.mem.eql(u8, a_f.fork.id.slice(), b.fork_files.fork.id.slice()) and 1545 std.mem.eql(u8, a_f.oid.slice(), b.fork_files.oid.slice()) and 1546 std.mem.eql(u8, a_f.path.slice(), b.fork_files.path.slice()) and 1547 a_f.line == b.fork_files.line, 1548 .fork_commits => |a_c| std.mem.eql(u8, a_c.fork.name.slice(), b.fork_commits.fork.name.slice()) and 1549 std.mem.eql(u8, a_c.fork.id.slice(), b.fork_commits.fork.id.slice()) and 1550 std.mem.eql(u8, a_c.oid.slice(), b.fork_commits.oid.slice()) and 1551 switch (a_c.content) { 1552 .diff => |a_d| switch (b.fork_commits.content) { 1553 .diff => |b_d| a_d.start == b_d.start and std.mem.eql(u8, a_d.path.slice(), b_d.path.slice()), 1554 .message => false, 1555 }, 1556 .message => std.meta.activeTag(b.fork_commits.content) == .message, 1557 }, 1558 .fork_settings => |a_f| std.mem.eql(u8, a_f.name.slice(), b.fork_settings.name.slice()) and std.mem.eql(u8, a_f.id.slice(), b.fork_settings.id.slice()), 1559 .fork_auth => |a_f| std.mem.eql(u8, a_f.name.slice(), b.fork_auth.name.slice()) and std.mem.eql(u8, a_f.id.slice(), b.fork_auth.id.slice()), 1560 else => true, 1561 }; 1562 } 1563 1564 // true when following a link from `b` to `a` (both repo routes) should reload 1565 // rather than stay in page 1566 pub fn repoPageChanged(a: RoutablePage, b: RoutablePage) bool { 1567 if (a.parent() != .repo or b.parent() != .repo) return false; 1568 if (std.meta.activeTag(a) == .repo_refs and std.meta.activeTag(b) == .repo_refs and 1569 a.repo_refs.from.len == 0 and b.repo_refs.from.len == 0) 1570 return !std.mem.eql(u8, a.repo_refs.name.slice(), b.repo_refs.name.slice()); 1571 return !a.eql(b); 1572 } 1573 1574 pub fn forkPageChanged(a: RoutablePage, b: RoutablePage) bool { 1575 return a.parent() == .fork and b.parent() == .fork and !a.eql(b); 1576 } 1577 1578 // true when `a` and `b` are the same user paginated to a different repos 1579 // window. switching between a user's tabs is in-page, so 1580 // only a changed `start` on the repos list navigates. 1581 pub fn userPageChanged(a: RoutablePage, b: RoutablePage) bool { 1582 return switch (a) { 1583 .user_repos => |aa| switch (b) { 1584 .user_repos => |bb| std.mem.eql(u8, aa.name.slice(), bb.name.slice()) and aa.start != bb.start, 1585 else => false, 1586 }, 1587 .user_forks => |aa| switch (b) { 1588 .user_forks => |bb| std.mem.eql(u8, aa.name.slice(), bb.name.slice()) and aa.start != bb.start, 1589 else => false, 1590 }, 1591 else => false, 1592 }; 1593 } 1594 1595 // true when `a` and `b` are the same home list tab paginated to a different 1596 // window. switching between the users/repos tabs is in-page (the home page 1597 // holds both lists), so only a changed `after` on the same tab navigates. 1598 pub fn homePageChanged(a: RoutablePage, b: RoutablePage) bool { 1599 return switch (a) { 1600 .home_users => |aa| switch (b) { 1601 .home_users => |bb| aa != bb, 1602 else => false, 1603 }, 1604 .home_repos => |aa| switch (b) { 1605 .home_repos => |bb| aa != bb, 1606 else => false, 1607 }, 1608 else => false, 1609 }; 1610 } 1611 }; 1612 1613 // a `RefOrOid` resolved against an on-disk repo to the commit oid it points at 1614 fn isUnreserved(c: u8) bool { 1615 return std.ascii.isAlphanumeric(c) or c == '-' or c == '.' or c == '_' or c == '~'; 1616 } 1617 1618 // percent-encode a ref name for use as a single url path segment. 1619 pub fn urlEncodeRef(aa: std.mem.Allocator, raw: []const u8) ![]const u8 { 1620 var out: std.Io.Writer.Allocating = .init(aa); 1621 try std.Uri.Component.percentEncode(&out.writer, raw, isUnreserved); 1622 return out.written(); 1623 } 1624 1625 // a resolved ref/oid for a repo opened with `repo_kind`/`repo_opts` 1626 pub fn ResolvedRefOrOid(comptime repo_kind: rp.RepoKind, comptime repo_opts: rp.RepoOpts(repo_kind)) type { 1627 return struct { 1628 pub const hex_len = hash.hexLen(repo_opts.hash); 1629 1630 // the concrete ref/oid (a null request resolves to the default branch) 1631 ref_or_oid: RoutablePage.RefOrOid, 1632 // its branch/tag name or oid, url-encoded (ref names may contain '/', so 1633 // the route layer — which splits on '/' — stores them encoded). duped 1634 // into `aa`. 1635 value: []const u8, 1636 // the commit oid it points at 1637 oid: [hex_len]u8, 1638 1639 const Self = @This(); 1640 1641 // resolve a requested ref/oid (null = the repo's default branch) to a 1642 // concrete ref/oid plus the commit oid it points at. `requested_value` is 1643 // the url-encoded form (as it appears in the route). null when it doesn't 1644 // resolve (an unknown branch/tag, or a malformed/unknown oid). 1645 pub fn init( 1646 repo: *rp.Repo(repo_kind, repo_opts), 1647 io: std.Io, 1648 aa: std.mem.Allocator, 1649 requested_ref_or_oid: ?RoutablePage.RefOrOid, 1650 requested_value: []const u8, 1651 ) !?Self { 1652 var ref_or_oid: RoutablePage.RefOrOid = requested_ref_or_oid orelse .branch; 1653 // the decoded ref name / oid to look up. a named ref arrives url-encoded. 1654 var value: []const u8 = if (requested_ref_or_oid == null) 1655 requested_value 1656 else 1657 std.Uri.percentDecodeInPlace(try aa.dupe(u8, requested_value)); 1658 // no ref named: fall back to HEAD's branch (or its oid when detached). 1659 if (requested_ref_or_oid == null) { 1660 var head_buf: [rf.MAX_REF_CONTENT_SIZE]u8 = undefined; 1661 if (repo.head(io, &head_buf)) |head| switch (head) { 1662 .ref => |r| { 1663 ref_or_oid = .branch; 1664 value = r.name; 1665 }, 1666 .oid => |o| { 1667 ref_or_oid = .object; 1668 value = o; 1669 }, 1670 } else |_| {} 1671 } 1672 1673 var oid: [hex_len]u8 = undefined; 1674 switch (ref_or_oid) { 1675 .object => { 1676 if (value.len != hex_len) return null; 1677 @memcpy(&oid, value); 1678 }, 1679 .branch, .tag => { 1680 const ref_kind: rf.RefKind = if (ref_or_oid == .branch) .head else .tag; 1681 oid = (repo.readRef(io, .{ .kind = ref_kind, .name = value }) catch null) orelse return null; 1682 }, 1683 } 1684 // store url-encoded so the route layer can hold the value verbatim. 1685 return .{ .ref_or_oid = ref_or_oid, .value = try urlEncodeRef(aa, value), .oid = oid }; 1686 } 1687 }; 1688 } 1689 1690 // where a repo page reads its on-disk repo from 1691 pub const RepoSource = struct { 1692 path: []const u8, 1693 repo_kind: rp.RepoKind, 1694 // the user's global git config, so local mode picks up their identity and 1695 // their signing and ssh settings. null on the server paths, which must not 1696 // read whoever runs the server. 1697 global_config_path: ?[]const u8 = null, 1698 1699 pub fn localInitOpts(self: RepoSource) rp.InitOpts { 1700 return .{ .path = self.path, .global_config_path = self.global_config_path }; 1701 } 1702 1703 pub fn hasBranch(self: RepoSource, io: std.Io, allocator: std.mem.Allocator, branch: []const u8) !bool { 1704 if (!xit.ref.validateName(branch)) return false; 1705 return switch (self.repo_kind) { 1706 inline else => |repo_kind| blk: { 1707 var any_repo = try rp.AnyRepo(repo_kind, .{}).open(io, allocator, self.localInitOpts()); 1708 defer any_repo.deinit(io, allocator); 1709 break :blk switch (any_repo) { 1710 inline else => |*repo| (try repo.readRef(io, .{ .kind = .head, .name = branch })) != null, 1711 }; 1712 }, 1713 }; 1714 } 1715 }; 1716 1717 // events created in local mode have no account behind them, so the commit 1718 // author comes from the repo's config, which the global config feeds into. 1719 pub const local_author_fallback = evt.CommitAuthor{ .name = "haxy", .email = "user@haxy" }; 1720 1721 pub fn localAuthor( 1722 src: RepoSource, 1723 io: std.Io, 1724 allocator: std.mem.Allocator, 1725 arena: *std.heap.ArenaAllocator, 1726 ) !evt.CommitAuthor { 1727 switch (src.repo_kind) { 1728 inline else => |repo_kind| { 1729 var any_repo = rp.AnyRepo(repo_kind, .{}).open(io, allocator, src.localInitOpts()) catch return local_author_fallback; 1730 defer any_repo.deinit(io, allocator); 1731 1732 switch (any_repo) { 1733 inline else => |*repo| { 1734 var config = try repo.listConfig(io, allocator); 1735 defer config.deinit(); 1736 1737 const user = config.sections.get("user") orelse return local_author_fallback; 1738 const name = user.get("name") orelse return local_author_fallback; 1739 const email = user.get("email") orelse return local_author_fallback; 1740 return .{ 1741 .name = try arena.allocator().dupe(u8, name), 1742 .email = try arena.allocator().dupe(u8, email), 1743 }; 1744 }, 1745 } 1746 }, 1747 } 1748 } 1749 1750 // per-connection mutable state. each SSH session / web session / local TUI 1751 // run gets its own. 1752 pub const Session = struct { 1753 data: Data = .{}, 1754 // session-lifetime allocations: login/user_id, persisted prefs, queued 1755 // actions. lives as long as the connection. 1756 arena: *std.heap.ArenaAllocator, 1757 // current page's allocations: page data and the page-scoped strings widgets 1758 // build (form actions, links). owned by Nav, swapped on each navigation, so 1759 // it doesn't accumulate over a long-lived session. on the web/wasm paths, 1760 // where a render is one-shot, this points at the same arena as `arena`. 1761 page_arena: *std.heap.ArenaAllocator, 1762 haxy_moment: ?evt.AdminDB.HashMap(.read_only) = null, // db cursor (null on the wasm side) 1763 // filesystem io and the path to <server>/repos, for opening on-disk repos 1764 // during page construction. both null on wasm, which has no filesystem and 1765 // rebuilds pages from the serialized snapshot rather than from disk. 1766 io: ?std.Io = null, 1767 admin_repo: ?*rp.Repo(.xit, evt.admin_repo_opts) = null, 1768 repos_dir: ?[]const u8 = null, 1769 // the single on-disk repo this session views, when running in local mode 1770 // (haxy invoked with no arguments inside a repo). null on the server paths, 1771 // which resolve repos from the admin db instead. 1772 local: ?RepoSource = null, 1773 pending: std.ArrayList(Action) = .empty, // actions queued by widgets this frame 1774 // focus id -> the live TextInput, refreshed each frame by the views that own 1775 // inputs. web/wasm form handling looks widgets up here by focus id. 1776 text_inputs: std.AutoHashMapUnmanaged(usize, *wgt.TextInput) = .empty, 1777 back: enum { unavailable, available, requested } = .unavailable, 1778 refresh_requested: bool = false, // set by input (ctrl+r) 1779 // a requested forward navigation. set this (via navigate) to move to a new 1780 // page; Nav.sync builds it and then copies it into current_page, clearing 1781 // this back to null. setting current_page directly only updates the url and 1782 // does not navigate. 1783 next_page: ?RoutablePage = null, 1784 is_terminal: bool = false, // true on remote SSH and local TUI 1785 // port the web UI is served on, for the TUI/SSH footer's "http://localhost:<port>..." 1786 // url. null on the web itself (no footer there). 1787 web_port: ?u16 = null, 1788 // a host operation requested by a widget 1789 host_request: ?HostRequest = null, 1790 quit_requested: bool = false, 1791 1792 pub const HostRequest = union(enum) { 1793 show_copyable_text: []const u8, 1794 sync_events, 1795 }; 1796 1797 pub const FormFeedback = union(enum) { 1798 pub const LoginFailure = enum { unknown_user, wrong_password }; 1799 pub const ThreadFailure = enum { required_title }; 1800 pub const PatchFailure = enum { 1801 required_title, 1802 invalid_target_branch, 1803 invalid_source_branch, 1804 same_branch, 1805 unrelated_branches, 1806 1807 pub fn fromError(err: anyerror) ?PatchFailure { 1808 return switch (err) { 1809 error.InvalidTargetBranch => .invalid_target_branch, 1810 error.InvalidSourceBranch => .invalid_source_branch, 1811 error.SameBranch => .same_branch, 1812 error.UnrelatedBranches => .unrelated_branches, 1813 else => null, 1814 }; 1815 } 1816 }; 1817 1818 login: struct { 1819 failure: LoginFailure, 1820 username: []const u8, 1821 }, 1822 issue: struct { 1823 failure: ThreadFailure, 1824 fields: ?struct { 1825 title: []const u8, 1826 tags: []const u8, 1827 description: []const u8, 1828 } = null, 1829 }, 1830 patch: struct { 1831 failure: PatchFailure, 1832 fields: ?struct { 1833 title: []const u8, 1834 tags: []const u8, 1835 description: []const u8, 1836 target_branch: []const u8, 1837 source_branch: []const u8 = "", 1838 source_kind: Repo.Patches.Source.Kind = .fork, 1839 } = null, 1840 }, 1841 discussion: struct { 1842 failure: ThreadFailure, 1843 fields: ?struct { 1844 title: []const u8, 1845 tags: []const u8, 1846 description: []const u8, 1847 } = null, 1848 }, 1849 }; 1850 1851 const Self = @This(); 1852 1853 // serializable data sent down to web client 1854 pub const Data = struct { 1855 user_id: ?[]const u8 = null, 1856 // the logged-in user's name, for the views that show it 1857 user_name: ?[]const u8 = null, 1858 // a failed form retained long enough to render it for correction 1859 form_feedback: ?FormFeedback = null, 1860 // a transient local event-sync error 1861 sync_failure: ?[]const u8 = null, 1862 current_page: RoutablePage = .default, 1863 // whether to render the ANSI art backdrop 1864 enable_ansi: bool = true, 1865 // the selected ANSI art. the server serializes one image for WASM so 1866 // the browser does not need the whole build-generated collection. 1867 ansi_art: []const u8 = "", 1868 // the bound git-service ports. absent in local mode, where remote urls 1869 // are not shown. 1870 git_http_port: ?u16 = null, 1871 git_ssh_port: ?u16 = null, 1872 git_ssh_prefix: []const u8 = "", 1873 // whether this session views a local repo or the server. unlike `local` 1874 // (the host-side filesystem source) this travels in the snapshot, so 1875 // the wasm side also parses elided link urls and hides the multi-user 1876 // chrome. 1877 host_kind: evt.HostKind = .server, 1878 }; 1879 1880 // a user-initiated state change. widgets enqueue these on the session during 1881 // input instead of mutating state or touching the DB themselves; the host 1882 // drains them each frame (see applyAndWritePending / applyPending). this keeps DB 1883 // side effects out of the widget tree and gives every render path one place to 1884 // turn a UI action into a state change + event. 1885 pub const Action = union(enum) { 1886 toggle_ansi, 1887 }; 1888 1889 pub fn init( 1890 arena: *std.heap.ArenaAllocator, 1891 repo: *rp.Repo(.xit, evt.admin_repo_opts), 1892 data: Data, 1893 ) !Self { 1894 var session = Self{ 1895 .data = data, 1896 .arena = arena, 1897 // until a host swaps in a page-scoped arena (Nav does this), page 1898 // allocations land in the session arena. on the web path that's the 1899 // intended behavior, since the whole arena is per-request. 1900 .page_arena = arena, 1901 .admin_repo = repo, 1902 .haxy_moment = try evt.currentMoment(evt.admin_repo_opts, repo), 1903 }; 1904 try session.loadUser(); 1905 return session; 1906 } 1907 1908 // load the logged-in user's name and persisted preferences from the db 1909 pub fn loadUser(self: *Self) !void { 1910 const user_id = self.data.user_id orelse return; 1911 const moment = self.haxy_moment orelse return; 1912 if (try evt.User.readById(evt.AdminDB, evt.admin_repo_opts.hash, moment, self.arena, user_id)) |user| { 1913 self.data.user_name = user.event.name; 1914 self.data.enable_ansi = user.event.enable_ansi; 1915 } 1916 } 1917 1918 pub fn userId(self: *const Self) ?[evt.event_id_size]u8 { 1919 const bytes = self.data.user_id orelse return null; 1920 if (bytes.len != evt.event_id_size) return null; 1921 var id: [evt.event_id_size]u8 = undefined; 1922 @memcpy(&id, bytes); 1923 return id; 1924 } 1925 1926 pub fn formFeedback(self: *const Self, comptime tag: std.meta.Tag(FormFeedback)) ?@FieldType(FormFeedback, @tagName(tag)) { 1927 const feedback = self.data.form_feedback orelse return null; 1928 if (std.meta.activeTag(feedback) != tag) return null; 1929 return @field(feedback, @tagName(tag)); 1930 } 1931 1932 pub fn clearFormFeedback(self: *Self) void { 1933 self.data.form_feedback = null; 1934 } 1935 1936 // the commit author for an event this session creates, or null when it may 1937 // not create one 1938 pub fn eventAuthor(self: *Self) !?evt.CommitAuthor { 1939 if (self.data.host_kind == .local) { 1940 const src = self.local orelse return local_author_fallback; 1941 const io = self.io orelse return local_author_fallback; 1942 return try localAuthor(src, io, self.page_arena.child_allocator, self.page_arena); 1943 } 1944 const user_id = self.data.user_id orelse return null; 1945 const moment = self.haxy_moment orelse return null; 1946 const user = (try evt.User.readById(evt.AdminDB, evt.admin_repo_opts.hash, moment, self.page_arena, user_id)) orelse return null; 1947 return .{ .name = user.event.name, .email = user.event.email }; 1948 } 1949 1950 // queue an action for the host to drain this frame. 1951 pub fn push(self: *Self, action: Action) !void { 1952 try self.pending.append(self.arena.allocator(), action); 1953 } 1954 1955 // apply a single action's in-memory effect only (no persistence). 1956 fn apply(self: *Self, action: Action) void { 1957 switch (action) { 1958 .toggle_ansi => self.data.enable_ansi = !self.data.enable_ansi, 1959 } 1960 } 1961 1962 // drain the session's queued actions by applying them to the session. 1963 // used on the wasm path, which has no repo to persist to. 1964 pub fn applyPending(self: *Self) void { 1965 for (self.pending.items) |action| self.apply(action); 1966 self.pending.clearRetainingCapacity(); 1967 } 1968 1969 // drain the session's queued actions by applying them to the session and 1970 // writing them to the db 1971 pub fn applyAndWritePending( 1972 self: *Self, 1973 io: std.Io, 1974 allocator: std.mem.Allocator, 1975 repo: *rp.Repo(.xit, evt.admin_repo_opts), 1976 ) !void { 1977 defer self.pending.clearRetainingCapacity(); 1978 for (self.pending.items) |action| { 1979 self.apply(action); 1980 switch (action) { 1981 .toggle_ansi => if (self.data.user_id) |user_id| { 1982 try evt.User.toggleAnsi(evt.admin_repo_opts, io, allocator, repo, user_id); 1983 }, 1984 } 1985 } 1986 } 1987 1988 // reload the moment from the admin repo and re-read user preferences 1989 pub fn reloadMoment(self: *Self, allocator: std.mem.Allocator, repo: *rp.Repo(.xit, evt.admin_repo_opts)) !void { 1990 const moment = try evt.currentMoment(evt.admin_repo_opts, repo); 1991 self.haxy_moment = moment; 1992 1993 const user_id = self.data.user_id orelse return; 1994 var arena = std.heap.ArenaAllocator.init(allocator); 1995 defer arena.deinit(); 1996 if (try evt.User.readById(evt.AdminDB, evt.admin_repo_opts.hash, moment, &arena, user_id)) |user| { 1997 self.data.enable_ansi = user.event.enable_ansi; 1998 } 1999 } 2000 2001 // request a forward navigation to `route`; the host consumes next_page 2002 // (Nav.sync on the terminal, the wasm tick on the web). 2003 pub fn navigate(self: *Session, route: RoutablePage) !void { 2004 self.clearFormFeedback(); 2005 self.next_page = route; 2006 } 2007 }; 2008 2009 pub fn run(io: std.Io, allocator: std.mem.Allocator, session: *Session, repo_maybe: ?*rp.Repo(.xit, evt.admin_repo_opts)) !void { 2010 var nav = try Nav.init(allocator, session); 2011 defer nav.deinit(allocator); 2012 2013 var terminal = try term.Terminal.init(io, allocator); 2014 var terminal_live = true; 2015 defer if (terminal_live) terminal.deinit(io); 2016 2017 // set term as active so it will be properly cooked 2018 // when a panic/segfault happens 2019 term.setActive(&terminal); 2020 defer term.setActive(null); 2021 2022 while (!terminal.shouldQuit()) { 2023 const grid_changed = try terminal.render(&nav.root); 2024 2025 // process any inputs. 2026 // 2027 // if the grid didn't change, then first do a blocking 2028 // read, so the thread will sleep until further input. 2029 // after that, all remaining reads are non-blocking so 2030 // we can process the rest of the queued inputs. 2031 // 2032 // if the grid *did* change, then only do non-blocking 2033 // reads. we do not want to sleep the thread because 2034 // there may be an animation that requires more looping. 2035 var blocking = !grid_changed; 2036 while (try terminal.readKey(io, blocking)) |key| { 2037 blocking = false; 2038 try inputKey(allocator, &nav.root, key, session); 2039 } 2040 2041 if (session.host_request) |request| { 2042 session.host_request = null; 2043 switch (request) { 2044 .show_copyable_text => |copyable_text| { 2045 term.setActive(null); 2046 terminal.deinit(io); 2047 terminal_live = false; 2048 showCopyableText(io, copyable_text) catch |show_err| { 2049 terminal = try term.Terminal.init(io, allocator); 2050 terminal_live = true; 2051 term.setActive(&terminal); 2052 return show_err; 2053 }; 2054 terminal = try term.Terminal.init(io, allocator); 2055 terminal_live = true; 2056 term.setActive(&terminal); 2057 }, 2058 .sync_events => { 2059 try nav.root.build(allocator, .{ 2060 .min_size = .{ .width = null, .height = null }, 2061 .max_size = .{ .width = terminal.size.width, .height = terminal.size.height }, 2062 }, nav.root.getFocus()); 2063 _ = try terminal.render(&nav.root); 2064 try Repo.Events.performSync(allocator, session); 2065 }, 2066 } 2067 } 2068 2069 // persist queued actions when there's a repo; local mode has none, 2070 // so just apply in-memory 2071 if (repo_maybe) |repo| { 2072 try session.applyAndWritePending(io, allocator, repo); 2073 // reload so the next navigation builds its page from the current moment 2074 try session.reloadMoment(allocator, repo); 2075 } else { 2076 session.applyPending(); 2077 } 2078 2079 // reconcile navigation: forward to a new page, or back on escape. 2080 try nav.sync(allocator, session); 2081 2082 // the quit button (on the quit tab) asks the host to tear down. 2083 if (session.quit_requested) terminal.requestQuit(); 2084 2085 try nav.root.build(allocator, .{ 2086 .min_size = .{ .width = null, .height = null }, 2087 .max_size = .{ .width = terminal.size.width, .height = terminal.size.height }, 2088 }, nav.root.getFocus()); 2089 } 2090 } 2091 2092 fn showCopyableText(io: std.Io, copyable_text: []const u8) !void { 2093 const tty: ?std.Io.File = if (builtin.os.tag == .windows) 2094 null 2095 else 2096 try std.Io.Dir.cwd().openFile(io, "/dev/tty", .{ .mode = .read_write }); 2097 defer if (tty) |file| file.close(io); 2098 2099 const input = if (tty) |file| file else std.Io.File.stdin(); 2100 const output = if (tty) |file| file else std.Io.File.stdout(); 2101 2102 var write_buf: [1024]u8 = undefined; 2103 var writer = output.writer(io, &write_buf); 2104 try writer.interface.print("\x1b[2J\x1b[Hcopy the following text and then press enter to go back:\r\n\r\n{s}\r\n", .{copyable_text}); 2105 try writer.interface.flush(); 2106 2107 var read_buf: [1]u8 = undefined; 2108 var reader = input.reader(io, &read_buf); 2109 while (true) { 2110 const byte = try reader.interface.takeByte(); 2111 if (byte == '\r' or byte == '\n') return; 2112 } 2113 } 2114 2115 pub fn inputKey(allocator: std.mem.Allocator, root: *Widget, key: Key, session: *Session) !void { 2116 const root_focus = root.getFocus(); 2117 const focused_before = root_focus.grandchild_id; 2118 var activate_in_page_link = false; 2119 switch (key) { 2120 // request a navigation pop; the host's Nav.sync goes back a page, or 2121 // quits when there's no history left. 2122 .escape => { 2123 session.back = .requested; 2124 return; 2125 }, 2126 .ctrl => |letter| switch (letter) { 2127 'r' => { 2128 session.refresh_requested = true; 2129 return; 2130 }, 2131 else => try root.input(allocator, key, root_focus), 2132 }, 2133 .enter => { 2134 if (root_focus.grandchild_id) |gid| { 2135 // follow a cross-page link 2136 if (crossPageLink(root_focus, gid, session.data)) |route| { 2137 return session.navigate(route); 2138 } 2139 if (rawLink(root_focus, gid)) |url| return requestRawLink(session, url); 2140 } 2141 activate_in_page_link = true; 2142 try root.input(allocator, key, root_focus); 2143 }, 2144 .mouse => |mouse| { 2145 if (mouse.action == .press and mouse.action.press == .left) { 2146 if (root_focus.hitTest(mouse.x, mouse.y)) |hit| { 2147 const focus_id = hit.id; 2148 if (hit.kind == .background) { 2149 root_focus.setFocus(focus_id); 2150 return; 2151 } 2152 if (widget.isBackButton((root_focus.children.get(focus_id) orelse return).focus)) { 2153 if (session.back == .available) session.back = .requested; 2154 return; 2155 } 2156 // follow a cross-page link 2157 if (crossPageLink(root_focus, focus_id, session.data)) |route| { 2158 return session.navigate(route); 2159 } 2160 if (rawLink(root_focus, focus_id)) |url| { 2161 if (!mouse.ctrl) try requestRawLink(session, url); 2162 return; 2163 } 2164 root_focus.setFocus(focus_id); 2165 activate_in_page_link = true; 2166 } 2167 // forward the press into the widget tree so buttons (and any 2168 // future click-aware widgets) can react. widgets that don't 2169 // care about presses ignore it. 2170 try root.input(allocator, key, root_focus); 2171 } else { 2172 try root.input(allocator, key, root_focus); 2173 } 2174 }, 2175 else => try root.input(allocator, key, root_focus), 2176 } 2177 2178 const focused_after = root_focus.grandchild_id; 2179 if (!activate_in_page_link and focused_before == focused_after) return; 2180 const focus_id = focused_after orelse return; 2181 if (inPageLink(root_focus, focus_id, session.data)) |route| session.data.current_page = route; 2182 } 2183 2184 // a link to bytes the server serves directly rather than to a page route, so 2185 // it never resolves to a RoutablePage 2186 pub const raw_link_prefix = "ax:"; 2187 2188 // a route already loaded into the current page; focusing it changes the url 2189 // without rebuilding the page 2190 pub const in_page_link_prefix = "ai:"; 2191 2192 // an in-page tab's base route, or the exact current route when it is selected 2193 pub fn inPageTabLink(session: *Session, route: RoutablePage, selected: bool) ![]const u8 { 2194 const target = if (selected) session.data.current_page else route; 2195 return std.fmt.allocPrint(session.page_arena.allocator(), "{s}{s}", .{ in_page_link_prefix, try target.toUrl(session.page_arena) }); 2196 } 2197 2198 // a button the web renderer covers with a file picker that posts the chosen 2199 // file to the url after the prefix 2200 pub const file_input_prefix = "file:"; 2201 2202 // a submit button that overrides its enclosing form's action 2203 pub const submit_action_prefix = "submit:"; 2204 2205 // the url an `ax:` link points at, or null for anything else. a host that 2206 // suppresses the anchor's own navigation needs this to follow the link. 2207 pub fn rawLink(root_focus: *Focus, focus_id: usize) ?[]const u8 { 2208 const child = root_focus.children.get(focus_id) orelse return null; 2209 const custom = switch (child.focus.kind) { 2210 .custom => |c| c, 2211 else => return null, 2212 }; 2213 if (!std.mem.startsWith(u8, custom, raw_link_prefix)) return null; 2214 return custom[raw_link_prefix.len..]; 2215 } 2216 2217 fn requestRawLink(session: *Session, url: []const u8) !void { 2218 session.host_request = .{ .show_copyable_text = try terminalWebUrl(session.page_arena.allocator(), session, url) }; 2219 } 2220 2221 pub fn terminalWebUrl(allocator: std.mem.Allocator, session: *const Session, path: []const u8) ![]const u8 { 2222 return if (session.web_port) |port| 2223 try std.fmt.allocPrint(allocator, "http://localhost:{d}{s}", .{ port, path }) 2224 else 2225 path; 2226 } 2227 2228 // if the focus target at focus_id is an `a:` link that should navigate (a 2229 // different parent page, or a different files directory within the repo page), 2230 // return its route; otherwise null. lets a host turn a click / enter on such a 2231 // link into a navigation rather than a focus change. 2232 pub fn crossPageLink(root_focus: *Focus, focus_id: usize, data: Session.Data) ?RoutablePage { 2233 const current = data.current_page; 2234 const route = pageLink(root_focus, focus_id, data, "a:") orelse return null; 2235 // a link to a different parent page always navigates; within a page, a 2236 // files-directory / commits-page / list-window change navigates while tab 2237 // links stay in-page. 2238 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; 2239 return null; 2240 } 2241 2242 // the route carried by an `ai:` focus target, or null for any other target 2243 pub fn inPageLink(root_focus: *Focus, focus_id: usize, data: Session.Data) ?RoutablePage { 2244 return pageLink(root_focus, focus_id, data, in_page_link_prefix); 2245 } 2246 2247 fn pageLink(root_focus: *Focus, focus_id: usize, data: Session.Data, prefix: []const u8) ?RoutablePage { 2248 const child = root_focus.children.get(focus_id) orelse return null; 2249 const custom = switch (child.focus.kind) { 2250 .custom => |c| c, 2251 else => return null, 2252 }; 2253 if (!std.mem.startsWith(u8, custom, prefix)) return null; 2254 const path = custom[prefix.len..]; 2255 // local sessions build (and parse) links with the repo identity elided 2256 return if (data.host_kind == .local) RoutablePage.fromUrlLocal(path) else RoutablePage.fromUrl(path); 2257 } 2258 2259 // a display author, resolved against the admin db at read time 2260 pub const Author = union(enum) { 2261 unknown, 2262 email: []const u8, // an email no user matches 2263 user_name: []const u8, 2264 2265 // the commit author line's email, resolved like initFromEmail 2266 pub fn init( 2267 haxy_moment: ?evt.AdminDB.HashMap(.read_only), 2268 arena: *std.heap.ArenaAllocator, 2269 author_line: []const u8, 2270 ) !Author { 2271 return initFromEmail(haxy_moment, arena, evt.authorEmail(author_line)); 2272 } 2273 2274 // from a record's stored author email: it resolves to the user currently 2275 // holding it, else stays the email. the result is allocated in `arena`, 2276 // so the email may borrow transient memory. 2277 pub fn initFromEmail( 2278 haxy_moment: ?evt.AdminDB.HashMap(.read_only), 2279 arena: *std.heap.ArenaAllocator, 2280 author_email: ?[]const u8, 2281 ) !Author { 2282 const email = author_email orelse return .unknown; 2283 if (haxy_moment) |moment| { 2284 if (try evt.User.readByEmail(evt.AdminDB, evt.admin_repo_opts.hash, moment, arena, email)) |user| { 2285 return .{ .user_name = user.event.name }; 2286 } 2287 } 2288 return .{ .email = try arena.allocator().dupe(u8, email) }; 2289 } 2290 }; 2291 2292 // the "a:" link to user `name`'s page. 2293 pub fn userLink(page_arena: *std.heap.ArenaAllocator, name: []const u8) ![]const u8 { 2294 const parsed = RoutablePage.Array(evt.User.name_max_len).from(name) orelse return error.RouteTooLong; 2295 const url = try (RoutablePage{ .user_repos = .{ .name = parsed } }).toUrl(page_arena); 2296 return std.fmt.allocPrint(page_arena.allocator(), "a:{s}", .{url}); 2297 } 2298 2299 // a focusable " author " box showing `author`, linking to their user page 2300 // when it is a known user 2301 pub fn authorBox(allocator: std.mem.Allocator, page_arena: *std.heap.ArenaAllocator, author: Author) !wgt.TextBox { 2302 const text = switch (author) { 2303 .unknown => "", 2304 .email, .user_name => |t| t, 2305 }; 2306 var tb = try wgt.TextBox.init(allocator, text, .{ .border_style = .single, .rounded_corners = true, .wrap_kind = .none, .label = " author " }); 2307 errdefer tb.deinit(allocator); 2308 tb.getFocus().mode = .all; 2309 switch (author) { 2310 .user_name => |name| tb.getFocus().kind = .{ .custom = try userLink(page_arena, name) }, 2311 else => {}, 2312 } 2313 return tb; 2314 } 2315 2316 // native-TUI navigation 2317 pub const Nav = struct { 2318 root: Widget, 2319 // backs the current page (its Page data and the page-scoped strings its 2320 // widgets build). owned here, swapped on each navigation. session.page_arena 2321 // tracks whichever of these is current so widgets allocate into it. 2322 arena: *std.heap.ArenaAllocator, 2323 history: std.ArrayList(Entry), 2324 2325 // each retained page keeps its own arena, freed when the page leaves the 2326 // stack (popped on back, evicted at cap, or on deinit). this is what keeps a 2327 // long-lived session from accumulating every page it ever visited. 2328 const Entry = struct { root: Widget, route: RoutablePage, arena: *std.heap.ArenaAllocator }; 2329 2330 // cap on retained back-history so the chain can't grow memory without bound 2331 const max_history: usize = 16; 2332 2333 pub fn init(allocator: std.mem.Allocator, session: *Session) !Nav { 2334 session.back = .unavailable; 2335 const arena = try allocator.create(std.heap.ArenaAllocator); 2336 arena.* = std.heap.ArenaAllocator.init(allocator); 2337 errdefer { 2338 arena.deinit(); 2339 allocator.destroy(arena); 2340 } 2341 2342 session.page_arena = arena; 2343 const route = session.data.current_page; 2344 2345 const page = try arena.allocator().create(Page); 2346 page.* = try Page.init(arena, session, route); 2347 return .{ 2348 .root = try initRoot(allocator, page, session), 2349 .arena = arena, 2350 .history = .empty, 2351 }; 2352 } 2353 2354 pub fn deinit(self: *Nav, allocator: std.mem.Allocator) void { 2355 self.root.deinit(allocator); 2356 freeArena(allocator, self.arena); 2357 for (self.history.items) |*entry| { 2358 entry.root.deinit(allocator); 2359 freeArena(allocator, entry.arena); 2360 } 2361 self.history.deinit(allocator); 2362 } 2363 2364 fn freeArena(allocator: std.mem.Allocator, arena: *std.heap.ArenaAllocator) void { 2365 arena.deinit(); 2366 allocator.destroy(arena); 2367 } 2368 2369 // reconcile the displayed root with the session's navigation state. a 2370 // forward nav (current_page moved to a different parent page) pushes the 2371 // current root and builds the new page in a fresh arena; a back request 2372 // frees the current page and restores the previous one. when escape is 2373 // pressed with no history left we switch to the quit tab instead of quitting. 2374 pub fn sync(self: *Nav, allocator: std.mem.Allocator, session: *Session) !void { 2375 // refresh: rebuild the current page in place from a current moment 2376 if (session.refresh_requested) { 2377 session.refresh_requested = false; 2378 if (session.haxy_moment != null or session.local != null) { 2379 const arena = try allocator.create(std.heap.ArenaAllocator); 2380 arena.* = std.heap.ArenaAllocator.init(allocator); 2381 errdefer freeArena(allocator, arena); 2382 2383 session.page_arena = arena; 2384 2385 const route = session.data.current_page; 2386 const page = try arena.allocator().create(Page); 2387 page.* = try Page.init(arena, session, route); 2388 const new_root = try initRoot(allocator, page, session); 2389 2390 self.root.deinit(allocator); 2391 freeArena(allocator, self.arena); 2392 self.root = new_root; 2393 self.arena = arena; 2394 } 2395 return; 2396 } 2397 2398 if (session.back == .requested) { 2399 if (self.history.pop()) |entry| { 2400 session.back = if (self.history.items.len == 0) .unavailable else .available; 2401 self.root.deinit(allocator); 2402 freeArena(allocator, self.arena); 2403 self.root = entry.root; 2404 self.arena = entry.arena; 2405 session.page_arena = entry.arena; 2406 session.data.current_page = entry.route; 2407 chooseAnsiArtForNavigation(session); 2408 return; 2409 } 2410 session.back = .unavailable; 2411 // nothing to go back to; switch to the quit confirmation 2412 const root_focus = self.root.getFocus(); 2413 var iter = root_focus.children.iterator(); 2414 while (iter.next()) |entry| { 2415 switch (entry.value_ptr.focus.kind) { 2416 .custom => |custom| if (std.mem.eql(u8, custom, Quit.tab_kind)) { 2417 root_focus.setFocus(entry.key_ptr.*); 2418 // a Stack only builds its selected child, so the quit 2419 // button isn't in the focus tree until a build runs with 2420 // the quit tab selected. build once, then send a 2421 // synthetic arrow_down to drop focus from the tab onto 2422 // the button so it's ready to confirm. 2423 try self.root.build(allocator, .{ 2424 .min_size = .{ .width = null, .height = 40 }, 2425 .max_size = .{ .width = 80, .height = null }, 2426 }, root_focus); 2427 try self.root.input(allocator, .arrow_down, root_focus); 2428 break; 2429 }, 2430 else => {}, 2431 } 2432 } 2433 return; 2434 } 2435 2436 // forward navigation: navigate() set next_page to the page to move to (a 2437 // cross-page link or tab change crossing pages) 2438 if (session.next_page) |route| { 2439 session.next_page = null; 2440 if (session.haxy_moment == null and session.local == null) return; 2441 const previous_route = session.data.current_page; 2442 // the page we navigated to becomes the current page 2443 session.data.current_page = route; 2444 session.back = .available; 2445 2446 const arena = try allocator.create(std.heap.ArenaAllocator); 2447 arena.* = std.heap.ArenaAllocator.init(allocator); 2448 errdefer freeArena(allocator, arena); 2449 2450 session.page_arena = arena; 2451 2452 const page = try arena.allocator().create(Page); 2453 page.* = try Page.init(arena, session, route); 2454 const new_root = try initRoot(allocator, page, session); 2455 2456 try self.history.append(allocator, .{ .root = self.root, .route = previous_route, .arena = self.arena }); 2457 // drop the oldest entry (freeing its widget tree and arena) once over cap 2458 if (self.history.items.len > max_history) { 2459 var oldest = self.history.orderedRemove(0); 2460 oldest.root.deinit(allocator); 2461 freeArena(allocator, oldest.arena); 2462 } 2463 self.root = new_root; 2464 self.arena = arena; 2465 } 2466 } 2467 }; 2468 2469 pub fn initRoot(allocator: std.mem.Allocator, page: *const Page, session: *Session) !Widget { 2470 const page_widget: Widget = switch (page.*) { 2471 .home => |*p| .{ .home = try .init(allocator, p, session) }, 2472 .user => |*p| .{ .user = try .init(allocator, p, session) }, 2473 .repo => |*p| .{ .repo = try .init(allocator, p, session) }, 2474 .fork => |*p| .{ .fork = try .init(allocator, p, session) }, 2475 }; 2476 2477 chooseAnsiArtForNavigation(session); 2478 2479 // on the TUI/SSH, the page sits above a one-row footer showing the url 2480 var root = if (session.is_terminal) blk: { 2481 var box = try wgt.Box(Widget).init(allocator, .{ .border_style = null, .direction = .vert }); 2482 errdefer box.deinit(allocator); 2483 const bg_id = bg_blk: { 2484 var background = try widget.AnsiBackground.init(allocator, page_widget, session); 2485 errdefer background.deinit(allocator); 2486 const id = background.getFocus().id; 2487 try box.children.put(allocator, id, .{ .widget = .{ .background = background }, .rect = null, .min_size = null }); 2488 break :bg_blk id; 2489 }; 2490 { 2491 var footer = try widget.Footer.init(allocator, session); 2492 errdefer footer.deinit(allocator); 2493 try box.children.put(allocator, footer.getFocus().id, .{ .widget = .{ .footer = footer }, .rect = null, .min_size = .{ .width = null, .height = 1 } }); 2494 } 2495 box.getFocus().child_id = bg_id; 2496 break :blk Widget{ .box = box }; 2497 } else Widget{ .background = try widget.AnsiBackground.init(allocator, page_widget, session) }; 2498 errdefer root.deinit(allocator); 2499 2500 // input-owning views build their TextInputs in init, so reset their 2501 // registrations here 2502 session.text_inputs.clearRetainingCapacity(); 2503 2504 try root.build(allocator, .{ 2505 .min_size = .{ .width = null, .height = 40 }, 2506 .max_size = .{ .width = 100, .height = null }, 2507 }, root.getFocus()); 2508 2509 return root; 2510 } 2511 2512 // native and server-side sessions choose from the embedded collection. WASM 2513 // keeps the art serialized by the server instead. 2514 fn chooseAnsiArtForNavigation(session: *Session) void { 2515 if (comptime ansi_arts.len == 0) return; 2516 const io = session.io orelse return; 2517 var random: usize = undefined; 2518 io.random(std.mem.asBytes(&random)); 2519 session.data.ansi_art = ansi_arts[random % ansi_arts.len]; 2520 } 2521