A Jumplist entry is (closed) only while no pane has its file open

A closed file's entries stayed closed after the file was opened again another way (a look, Recent), so Jumplist said (closed) of an open file and a step onto it reopened it. They are now that pane's as soon as a pane shows the file.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 26 insertions, 0 deletions

diff --git a/src/ninep/ctl.zig b/src/ninep/ctl.zig
index 3d7ee91a..b93d83c3 100644
--- a/src/ninep/ctl.zig
+++ b/src/ninep/ctl.zig
@@ -2348,6 +2348,32 @@ test "a column takes panes until their documented minimums fill it, not until no
     }
 }
 
+test "a Jumplist entry is (closed) only while no pane has its file open" {
+    const p = try withFile(testing.allocator, "x\n");
+    defer p.deinit();
+    var tmp = testing.tmpDir(.{});
+    defer tmp.cleanup();
+    try tmp.dir.writeFile(testing.io, .{ .sub_path = "a.txt", .data = "one\n" });
+    try tmp.dir.writeFile(testing.io, .{ .sub_path = "b.txt", .data = "two\n" });
+    var dir_buf: [4096]u8 = undefined;
+    const dir = dir_buf[0..try tmp.dir.realPath(testing.io, &dir_buf)];
+    var line: [4200]u8 = undefined;
+    _ = wr(p, root_look, try std.fmt.bufPrint(&line, "{s}/a.txt\n", .{dir}));
+    p.sync();
+    const a = p.panes[p.active].?.serial;
+    _ = wr(p, root_look, try std.fmt.bufPrint(&line, "{s}/b.txt\n", .{dir}));
+    p.sync();
+    _ = wr(p, Node.of(a, .ctl), "Del\n");
+    p.sync();
+    var closed: usize = 0;
+    for (p.jumps[0..p.njumps]) |j| closed += @intFromBool(j.serial == 0);
+    try testing.expect(closed > 0);
+    // Open again, by a look: no entry is closed any more.
+    _ = wr(p, root_look, try std.fmt.bufPrint(&line, "{s}/a.txt\n", .{dir}));
+    p.sync();
+    for (p.jumps[0..p.njumps]) |j| try testing.expect(j.serial != 0);
+}
+
 test "a closed file is found again: Recent and /recent list it closed, a look at its row reopens it at its dot, and a jump back does too" {
     const p = try withFile(testing.allocator, "x\n");
     defer p.deinit();