k off the topmost tagline focuses the TOPBAR: row 0 is a tagline too

2 files changed, 268 insertions, 3 deletions

diff --git a/test/snapshots/tagnav.golden b/test/snapshots/tagnav.golden
index 2b00eba5..77d5a846 100644
--- a/test/snapshots/tagnav.golden
+++ b/test/snapshots/tagnav.golden
@@ -184,7 +184,100 @@
 |
 |
 |
-== snap up-edge grid=100x30 cursor=39,1
+== snap up-edge grid=100x30 cursor=0,0
+|Kill Newcol Tutor Debug NextColor Dump
+|  NOR /tmp/pardes-snap/tagnav/cwd/w.txt Save Del    NOR /tmp/pardes-snap/tagnav/cwd Del
+|     1 alpha
+|     2 beta                                         w.txt
+|     3 gamma
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
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+|  NOR /tmp/pardes-snap/tagnav/cwd Del
+|
+|  w.txt
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+== snap topbar-word grid=100x30 cursor=4,0
+|Kill Newcol Tutor Debug NextColor Dump
+|  NOR /tmp/pardes-snap/tagnav/cwd/w.txt Save Del    NOR /tmp/pardes-snap/tagnav/cwd Del
+|     1 alpha
+|     2 beta                                         w.txt
+|     3 gamma
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
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+|  NOR /tmp/pardes-snap/tagnav/cwd Del
+|
+|  w.txt
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+== snap topbar-graphemes grid=100x30 cursor=6,0
+|Kill Newcol Tutor Debug NextColor Dump
+|  NOR /tmp/pardes-snap/tagnav/cwd/w.txt Save Del    NOR /tmp/pardes-snap/tagnav/cwd Del
+|     1 alpha
+|     2 beta                                         w.txt
+|     3 gamma
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
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+|  NOR /tmp/pardes-snap/tagnav/cwd Del
+|
+|  w.txt
+|
+|
+|
+|
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+|
+|
+|
+|
+== snap back-down grid=100x30 cursor=39,1
 |Kill Newcol Tutor Debug NextColor Dump
 |  NOR /tmp/pardes-snap/tagnav/cwd/w.txt Save Del    NOR /tmp/pardes-snap/tagnav/cwd Del
 |     1 alpha
@@ -370,3 +463,127 @@
 |
 |
 |
+== snap topbar-dollar grid=100x30 cursor=37,0
+|Kill Newcol Tutor Debug NextColor Dump
+|  NOR /tmp/pardes-snap/tagnav/cwd/w.txt Save Del    TTY /tmp/pardes-snap/tagnav/cwd Del
+|     1 alpha                                        $ ls
+|     2 beta                                         w.txt
+|     3 gamma                                        $
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|  NOR /tmp/pardes-snap/tagnav/cwd Del
+|
+|  w.txt
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+== snap topbar-exec grid=100x30 cursor=7,2
+|Kill Newcol Tutor Debug NextColor Dump Restore /tmp/pardes-dump.zon
+|  NOR /tmp/pardes-snap/tagnav/cwd/w.txt Save Del    TTY /tmp/pardes-snap/tagnav/cwd Del
+|     1 alpha                                        $ ls
+|     2 beta                                         w.txt
+|     3 gamma                                        $
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|  NOR /tmp/pardes-snap/tagnav/cwd Del
+|
+|  w.txt
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+== snap topbar-restore-word grid=100x30 cursor=39,0
+|Kill Newcol Tutor Debug NextColor Dump Restore /tmp/pardes-dump.zon
+|  NOR /tmp/pardes-snap/tagnav/cwd/w.txt Save Del    TTY /tmp/pardes-snap/tagnav/cwd Del
+|     1 alpha                                        $ ls
+|     2 beta                                         w.txt
+|     3 gamma                                        $
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|  NOR /tmp/pardes-snap/tagnav/cwd Del
+|
+|  w.txt
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+== snap topbar-restored grid=100x30 cursor=7,2
+|Kill Newcol Tutor Debug NextColor Dump
+|  NOR /tmp/pardes-snap/tagnav/cwd/w.txt Save Del    TTY /tmp/pardes-snap/tagnav/cwd Del
+|     1 alpha                                        $ ls
+|     2 beta                                         w.txt
+|     3 gamma                                        $
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|
+|  NOR /tmp/pardes-snap/tagnav/cwd Del
+|
+|  w.txt
+|
+|
+|
+|
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+|
+|
+|
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+|
diff --git a/test/snapshots/tagnav.snap b/test/snapshots/tagnav.snap
index 6ba86c08..fbb9c917 100644
--- a/test/snapshots/tagnav.snap
+++ b/test/snapshots/tagnav.snap
@@ -42,11 +42,28 @@ snap down-tag
 key k
 stable 400 5000
 snap up-tag
-# k again: nothing above the file. focusDir leaves `active` alone, so the move
-# is a plain no-op and the tag KEEPS focus — you stay exactly where you were.
+# k again: nothing above the file — but "nothing" is not nowhere. Above the
+# topmost tagline is the TOPBAR, row 0, the global one. It is not a pane, so
+# focusDir can never find it; this fallback is the one place k walks off the
+# layout entirely. Evidence is the cursor=0,0 header: the bar has the keyboard
+# and parks on `Kill`.
 key k
 stable 400 5000
 snap up-edge
+# the bar speaks the tag's own one-line vocabulary: w to the next word start
+key w
+stable 400 5000
+snap topbar-word
+# h/l are plain graphemes up here — row 0 has no window to its left or right to
+# walk to — and the arrows still mean what they always did
+key l right
+stable 400 5000
+snap topbar-graphemes
+# j is the mirror of the k that got you here: back DOWN onto the topmost pane's
+# tagline, still in normal mode, so the hop is a round trip
+key j
+stable 400 5000
+snap back-down
 # the arrows are still in-tag motion: two rights walk two columns of the tail
 key right right
 stable 400 5000
@@ -73,3 +90,34 @@ key esc
 settle 700
 stable 400 5000
 snap tty-restored
+# Enter/Tab on the BAR runs the word under the cursor through the very dispatch
+# a middle click on it uses, and leaves the bar FIRST — `Kill` lives up here, so
+# a builtin that frees the session must never return into a focused topbar (the
+# same hazard the pane-tag chord has with `Del`). `Dump` is the visible one: the
+# bar GROWS a `Restore <path>` word, which is also the case where the line gets
+# longer than the column you were parked on.
+key c-w h
+stable 400 5000
+key :
+key k
+stable 400 5000
+key $
+stable 400 5000
+snap topbar-dollar
+key enter
+stable 700 15000
+snap topbar-exec
+# THE DELETION HAZARD, from the bar itself: `Restore` frees every pane and
+# swaps the core out from under the caller. Walk back onto the word the Dump
+# just grew — B twice off the tail, because the LONG word motions are the ones
+# that step over a path in one go — and run it. The bar drops focus BEFORE the
+# builtin, so nothing reaches for state the swap already freed.
+key :
+key k
+stable 400 5000
+key $ B B
+stable 400 5000
+snap topbar-restore-word
+key enter
+stable 900 15000
+snap topbar-restored