Make the column and workspace tags Texts with the pane tag's keys

The headers had their own one-line editor with its own keys: Enter always
executed, h/l and J/K moved between headers and panes, Ctrl-c/x/v cut and
pasted, and TagLine refused a newline that 9P accepted. They are now Texts
like a pane's tag, with no prefix and a default until edited, so normal and
insert mode, undo and the look and execute keys are the body's. Moving
between them is the window keys' job: Up from a pane with nothing above it
reaches its column's tag and then the workspace's, Down comes back, and
Left and Right walk the column tags.

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

1 files changed, 6 insertions, 6 deletions

diff --git a/test/panes.zig b/test/panes.zig
index a391dba2..b9fa9a88 100644
--- a/test/panes.zig
+++ b/test/panes.zig
@@ -152,8 +152,8 @@ const TagLayerTests = struct {
         try std.testing.expect(left.sel[0].state == .done and left.sel[0].r0 == 0);
         p.update(.{ .key = .{ .cp = Key.escape } });
         const long = "a" ** 60 ++ "界END";
-        try std.testing.expect(p.global_tag.set(long));
-        for (p.col_tags[0..p.ncol]) |*tag| try std.testing.expect(tag.set(long));
+        p.global_tag.own = try p.gpa.dupe(u8, long);
+        for (p.col_tags[0..p.ncol]) |*tag| tag.own = try p.gpa.dupe(u8, long);
         _ = try p.render(frame.allocator());
         for ([_]Kind{ .workspace, .column }) |kind| {
             const id: usize = if (kind == .column) 1 else 0;
@@ -161,7 +161,7 @@ const TagLayerTests = struct {
             const x = @as(f32, @floatFromInt(header.viewport.x)) * 10 + 62.5 * 5;
             p.update(.{ .mouse = mouse(header, x, .press) });
             p.update(.{ .mouse = mouse(header, x, .release) });
-            try std.testing.expectEqual(@as(?u16, 63), p.topbar_col);
+            try std.testing.expectEqual(@as(i32, 63), p.focusedHeader().?.cur_col);
             if (kind == .column) try std.testing.expectEqual(@as(?usize, 1), p.header_column) else try std.testing.expect(p.header_column == null);
             p.update(.{ .key = .{ .cp = Key.escape } });
         }
@@ -334,7 +334,7 @@ const TagNavigationTests = struct {
             key(p, 'j');
             try std.testing.expectEqual(@as(i32, 0), pane.tag.cur_col);
             try std.testing.expectEqual(@as(usize, 0), p.active);
-            try std.testing.expect(pane.focus == .tag and p.topbar_col == null);
+            try std.testing.expect(pane.focus == .tag and !p.header_focus);
             window(p, 'l');
             try std.testing.expectEqual(right, p.active);
             try std.testing.expect(pane.focus == .body and p.panes[right].?.focus == .body);
@@ -1291,13 +1291,13 @@ test "leaving a pane or entering a header cancels an uncommitted filename" {
     const pane = try p.setTestFile("untouched\n");
     for ([_]bool{ false, true }) |header| {
         p.active = 0;
-        p.topbar_col = null;
+        p.exitHeader();
         p.update(.tick);
         clickPathEnd(p, pane);
         p.update(.{ .paste = "/draft" });
         try std.testing.expect(pane.prompt == .name);
         if (header) {
-            p.topbar_col = 0;
+            p.enterHeader(null);
             p.update(.tick);
         } else {
             try std.testing.expect(p.executeBuiltinLine(0, "New"));