A pane tag wraps onto rows and can collapse to one, as acme's does

acme's frame wraps a tag at its right edge and the window grows to show
every row (wind.c wintaglines); Tagup/Tagdown shrink it to one row and back.
Pane tags used to be one row, scrolled sideways to the caret. Now a tag's
lines wrap at its width (one cell kept for the caret past a full row) and it
starts expanded; insert-mode Up on the first row collapses it, Down on the
last row expands it, and Alt-Up/Alt-Down do so in either mode. A word the
wrap breaks across rows is still one word to a click and a selection.
Column and workspace tags keep scrolling sideways.

Tests read body rows relative to the body's first row; the 41 snapshot
goldens that moved were re-recorded by name after a programmatic check that
each differs only by body rows shifting under the taller tags, and twelve
scripts whose clicks targeted fixed rows now click the same text.

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

1 files changed, 67 insertions, 67 deletions

diff --git a/test/snapshots/cornerdrag.golden b/test/snapshots/cornerdrag.golden
index fc212219..d70e41e4 100644
--- a/test/snapshots/cornerdrag.golden
+++ b/test/snapshots/cornerdrag.golden
@@ -1,7 +1,8 @@
-== snap hover-corner grid=100x31 cursor=4,5
+== snap hover-corner grid=100x31 cursor=4,6
 |Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Exit
 |   New Tty Find Grep Joincol Delcol              ╎   New Tty Find Grep Joincol Delcol
-|   /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save ╎   /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save M
+|   /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save ╎   /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save
+|   Mode Filter Collapse Del                      ╎   Mode Filter Collapse Del
 |  ls                                             ╎  ls
 |  w.txt                                          ╎  w.txt
 |                                                 ╎
@@ -15,8 +16,8 @@
 |                                                 ╎
 |                                                 ╎
 |                                                 ╎
-|                                                 ╎
 |   /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save ╎
+|   Mode Filter Collapse Del                      ╎
 |  ls                                             ╎
 |  w.txt                                          ╎
 |                                                 ╎
@@ -29,13 +30,12 @@
 |                                                 ╎
 |                                                 ╎
 |                                                 ╎
-|                                                 ╎
-== snap edge-drag grid=100x31 cursor=4,5
+== snap edge-drag grid=100x31 cursor=4,6
 |1:    New Tty Find Grep Joincol ╎elcol                  New Tty Find Grep Joincol Delcol
-|2:    /tmp/pardes-snap/cornerdra╎/cwd Tty+bash Save M   /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save M
-|3:   ls                         ╎                      ls
-|4:   w.txt                      ╎                      w.txt
-|5:                              ╎
+|2:    /tmp/pardes-snap/cornerdra╎/cwd Tty+bash Save     /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save
+|3:    Mode Filter Collapse Del  ╎                       Mode Filter Collapse Del
+|4:   ls                         ╎                      ls
+|5:   w.txt                      ╎                      w.txt
 |6:                              ╎
 |7:                              ╎
 |8:                              ╎
@@ -47,10 +47,10 @@
 |14:                              ╎
 |15:                              ╎
 |16:                              ╎
-|17:    /tmp/pardes-snap/cornerdra╎/cwd Tty+bash Save M
-|18:   ls                         ╎
-|19:   w.txt                      ╎
-|20:                              ╎
+|17:    /tmp/pardes-snap/cornerdra╎/cwd Tty+bash Save
+|18:    Mode Filter Collapse Del  ╎
+|19:   ls                         ╎
+|20:   w.txt                      ╎
 |21:                              ╎
 |22:                              ╎
 |23:                              ╎
@@ -61,13 +61,13 @@
 |28:                              ╎
 |29:                              ╎
 |30:                              ╎
-== snap edge-done grid=100x31 cursor=4,5
+== snap edge-done grid=100x31 cursor=4,7
 |1:    New Tty Find Grep Joincol D   New Tty Find Grep Joincol Delcol
-|2:    /tmp/pardes-snap/cornerdrag   /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filter Collapse
-|3:   ls                            ls
-|4:   w.txt                         w.txt
-|5:
-|6:
+|2:    /tmp/pardes-snap/cornerdra    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filter Collapse
+|3:    g/cwd Tty+bash Save Mode F     Del
+|4:    ilter Collapse Del           ls
+|5:   ls                            w.txt
+|6:   w.txt
 |7:
 |8:
 |9:
@@ -78,11 +78,11 @@
 |14:
 |15:
 |16:
-|17:    /tmp/pardes-snap/cornerdrag
-|18:   ls
-|19:   w.txt
-|20:
-|21:
+|17:    /tmp/pardes-snap/cornerdra
+|18:    g/cwd Tty+bash Save Mode F
+|19:    ilter Collapse Del
+|20:   ls
+|21:   w.txt
 |22:
 |23:
 |24:
@@ -92,13 +92,13 @@
 |28:
 |29:
 |30:
-== snap corner-drag grid=100x31 cursor=4,5
+== snap corner-drag grid=100x31 cursor=4,7
 |1:    New Tty Find Grep Joincol D   New Tty Find Grep Joincol ╎elcol
-|2:    /tmp/pardes-snap/cornerdrag   /tmp/pardes-snap/cornerdra╎/cwd Tty+bash Save Mode Filter Collapse
-|3:   ls                            ls                         ╎
-|4:   w.txt                         w.txt                      ╎
-|5:                                                            ╎
-|6:                                                            ╎
+|2:    /tmp/pardes-snap/cornerdra    /tmp/pardes-snap/cornerdra╎/cwd Tty+bash Save Mode Filter Collapse
+|3:    g/cwd Tty+bash Save Mode F     Del                      ╎
+|4:    ilter Collapse Del           ls                         ╎
+|5:   ls                            w.txt                      ╎
+|6:   w.txt                                                    ╎
 |7:                                                            ╎
 |8: ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌
 |9:                                                            ╎
@@ -109,11 +109,11 @@
 |14:                                                            ╎
 |15:                                                            ╎
 |16:                                                            ╎
-|17:    /tmp/pardes-snap/cornerdrag                             ╎
-|18:   ls                                                       ╎
-|19:   w.txt                                                    ╎
-|20:                                                            ╎
-|21:                                                            ╎
+|17:    /tmp/pardes-snap/cornerdra                              ╎
+|18:    g/cwd Tty+bash Save Mode F                              ╎
+|19:    ilter Collapse Del                                      ╎
+|20:   ls                                                       ╎
+|21:   w.txt                                                    ╎
 |22:                                                            ╎
 |23:                                                            ╎
 |24:                                                            ╎
@@ -123,19 +123,19 @@
 |28:                                                            ╎
 |29:                                                            ╎
 |30:                                                            ╎
-== snap corner-done grid=100x31 cursor=4,5
+== snap corner-done grid=100x31 cursor=4,6
 |1:    New Tty Find Grep Joincol Delcol                            New Tty Find Grep Joincol Delcol
-|2:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filter   /tmp/pardes-snap/cornerdrag/cwd Tty+b
-|3:   ls                                                          ls
-|4:   w.txt                                                       w.txt
-|5:
+|2:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filte    /tmp/pardes-snap/cornerdrag/cwd Tty+
+|3:    r Collapse Del                                              bash Save Mode Filter Collapse Del
+|4:   ls                                                          ls
+|5:   w.txt                                                       w.txt
 |6:
 |7:
 |8:
-|9:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filter
-|10:   ls
-|11:   w.txt
-|12:
+|9:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filte
+|10:    r Collapse Del
+|11:   ls
+|12:   w.txt
 |13:
 |14:
 |15:
@@ -154,19 +154,19 @@
 |28:
 |29:
 |30:
-== snap clamp-x grid=100x31 cursor=4,5
+== snap clamp-x grid=100x31 cursor=4,6
 |1:    New Tty Find Grep Joincol Delcol                            New Tty Find Grep Joincol D╎lcol
-|2:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filter   /tmp/pardes-snap/cornerdrag╎cwd Tty+b
-|3:   ls                                                          ls                          ╎
-|4:   w.txt                                                       w.txt                       ╎
-|5:                                                                                           ╎
+|2:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filte    /tmp/pardes-snap/cornerdrag╎cwd Tty+
+|3:    r Collapse Del                                              bash Save Mode Filter Colla╎se Del
+|4:   ls                                                          ls                          ╎
+|5:   w.txt                                                       w.txt                       ╎
 |6:                                                                                           ╎
 |7:                                                                                           ╎
 |8:                                                                                           ╎
-|9:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filter                              ╎
-|10:   ls                                                                                      ╎
-|11:   w.txt                                                                                   ╎
-|12:                                                                                           ╎
+|9:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filte                               ╎
+|10:    r Collapse Del                                                                         ╎
+|11:   ls                                                                                      ╎
+|12:   w.txt                                                                                   ╎
 |13:                                                                                           ╎
 |14:                                                                                           ╎
 |15:                                                                                           ╎
@@ -185,19 +185,19 @@
 |28:                                                                                           ╎
 |29:                                                                                           ╎
 |30:                                                                                           ╎
-== snap clamp-y grid=100x31 cursor=4,5
+== snap clamp-y grid=100x31 cursor=4,6
 |1:    New Tty Find Grep Joincol Delcol                        ╎   New Tty Find Grep Joincol Delcol
-|2:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filte╎   /tmp/pardes-snap/cornerdrag/cwd Tty+b
-|3:   ls                                                       ╎  ls
-|4:   w.txt                                                    ╎  w.txt
-|5:                                                            ╎
+|2:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filte╎   /tmp/pardes-snap/cornerdrag/cwd Tty+
+|3:    r Collapse Del                                          ╎   bash Save Mode Filter Collapse Del
+|4:   ls                                                       ╎  ls
+|5:   w.txt                                                    ╎  w.txt
 |6:                                                            ╎
 |7:                                                            ╎
 |8:                                                            ╎
 |9:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filte╎
-|10:   ls                                                       ╎
-|11:   w.txt                                                    ╎
-|12:                                                            ╎
+|10:    r Collapse Del                                          ╎
+|11:   ls                                                       ╎
+|12:   w.txt                                                    ╎
 |13:                                                            ╎
 |14:                                                            ╎
 |15:                                                            ╎
@@ -216,12 +216,12 @@
 |28:                                                            ╎
 |29: ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌
 |30:                                                            ╎
-== snap clamp-done grid=100x31 cursor=4,5
+== snap clamp-done grid=100x31 cursor=4,6
 |1:    New Tty Find Grep Joincol Delcol                            New Tty Find Grep Joincol Delcol
-|2:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filter   /tmp/pardes-snap/cornerdrag/cwd Tty+b
-|3:   ls                                                          ls
-|4:   w.txt                                                       w.txt
-|5:
+|2:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filte    /tmp/pardes-snap/cornerdrag/cwd Tty+
+|3:    r Collapse Del                                              bash Save Mode Filter Collapse Del
+|4:   ls                                                          ls
+|5:   w.txt                                                       w.txt
 |6:
 |7:
 |8:
@@ -246,4 +246,4 @@
 |27:
 |28:
 |29:
-|30:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filter
+|30:    /tmp/pardes-snap/cornerdrag/cwd Tty+bash Save Mode Filte