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, 71 insertions, 66 deletions

diff --git a/test/snapshots/windowops.golden b/test/snapshots/windowops.golden
index 63a7574a..5cea1905 100644
--- a/test/snapshots/windowops.golden
+++ b/test/snapshots/windowops.golden
@@ -1,7 +1,8 @@
-== snap hover-v grid=100x31 cursor=4,5
+== snap hover-v 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/windowops/cwd Tty+bash Save M╎   /tmp/pardes-snap/windowops/cwd Tty+bash Save Mo
+|   /tmp/pardes-snap/windowops/cwd Tty+bash Save M╎   /tmp/pardes-snap/windowops/cwd Tty+bash Save M
+|   ode Filter Collapse Del                       ╎   ode Filter Collapse Del
 |  ls                                             ╎  ls
 |  w.txt                                          ╎  w.txt
 |                                                 ╎
@@ -15,8 +16,8 @@
 |                                                 ╎
 |                                                 ╎
 |                                                 ╎
-|                                                 ╎
 |   /tmp/pardes-snap/windowops/cwd Tty+bash Save M╎
+|   ode Filter Collapse Del                       ╎
 |  ls                                             ╎
 |  w.txt                                          ╎
 |                                                 ╎
@@ -29,13 +30,12 @@
 |                                                 ╎
 |                                                 ╎
 |                                                 ╎
-|                                                 ╎
-== snap hover-h grid=100x31 cursor=4,5
+== snap hover-h grid=100x31 cursor=4,6
 |1:    New Tty Find Grep Joincol Delcol                  New Tty Find Grep Joincol Delcol
-|2:    /tmp/pardes-snap/windowops/cwd Tty+bash Save Mo   /tmp/pardes-snap/windowops/cwd Tty+bash Save Mo
-|3:   ls                                                ls
-|4:   w.txt                                             w.txt
-|5:
+|2:    /tmp/pardes-snap/windowops/cwd Tty+bash Save M    /tmp/pardes-snap/windowops/cwd Tty+bash Save M
+|3:    ode Filter Collapse Del                           ode 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/windowops/cwd Tty+bash Save Mo
-|18:   ls
-|19:   w.txt
-|20:
+|17:    /tmp/pardes-snap/windowops/cwd Tty+bash Save M
+|18:    ode Filter Collapse Del
+|19:   ls
+|20:   w.txt
 |21:
 |22:
 |23:
@@ -61,12 +61,12 @@
 |28:
 |29:
 |30:
-== snap border-drag grid=100x31 cursor=4,5
+== snap border-drag grid=100x31 cursor=4,6
 |1:    New Tty Find Grep Joincol Delcol    ╎             New Tty Find Grep Joincol Delcol
-|2:    /tmp/pardes-snap/windowops/cwd Tty+b╎sh Save Mo   /tmp/pardes-snap/windowops/cwd Tty+bash Save Mo
-|3:   ls                                   ╎            ls
-|4:   w.txt                                ╎            w.txt
-|5:                                        ╎
+|2:    /tmp/pardes-snap/windowops/cwd Tty+b╎sh Save M    /tmp/pardes-snap/windowops/cwd Tty+bash Save M
+|3:    ode Filter Collapse Del             ╎             ode Filter Collapse Del
+|4:   ls                                   ╎            ls
+|5:   w.txt                                ╎            w.txt
 |6:                                        ╎
 |7:                                        ╎
 |8:                                        ╎
@@ -78,10 +78,10 @@
 |14:                                        ╎
 |15:                                        ╎
 |16:                                        ╎
-|17:    /tmp/pardes-snap/windowops/cwd Tty+b╎sh Save Mo
-|18:   ls                                   ╎
-|19:   w.txt                                ╎
-|20:                                        ╎
+|17:    /tmp/pardes-snap/windowops/cwd Tty+b╎sh Save M
+|18:    ode Filter Collapse Del             ╎
+|19:   ls                                   ╎
+|20:   w.txt                                ╎
 |21:                                        ╎
 |22:                                        ╎
 |23:                                        ╎
@@ -92,18 +92,20 @@
 |28:                                        ╎
 |29:                                        ╎
 |30:                                        ╎
-== snap border-done grid=100x31 cursor=4,5
+== snap border-done grid=100x31 cursor=4,6
 |1:    New Tty Find Grep Joincol Delcol    ╎   New Tty Find Grep Joincol Delcol
 |2:    /tmp/pardes-snap/windowops/cwd Tty+b╎   /tmp/pardes-snap/windowops/cwd Tty+bash Save Mode Filter
-|3:   ls                                   ╎  ls
-|4:   w.txt                                ╎  w.txt
+|3:    ash Save Mode Filter Collapse Del   ╎    Collapse Del
+|4:   ls                                   ╎  ls
+|5:   w.txt                                ╎  w.txt
 |17:    /tmp/pardes-snap/windowops/cwd Tty+b╎
-== snap hborder-done grid=100x31 cursor=4,5
+|18:    ash Save Mode Filter Collapse Del   ╎
+== snap hborder-done grid=100x31 cursor=4,6
 |1:    New Tty Find Grep Joincol Delcol        New Tty Find Grep Joincol Delcol
-|2:    /tmp/pardes-snap/windowops/cwd Tty+ba   /tmp/pardes-snap/windowops/cwd Tty+bash Save Mode Filter
-|3:   ls                                      ls
-|4:   w.txt                                   w.txt
-|5:
+|2:    /tmp/pardes-snap/windowops/cwd Tty+b    /tmp/pardes-snap/windowops/cwd Tty+bash Save Mode Filter
+|3:    ash Save Mode Filter Collapse Del        Collapse Del
+|4:   ls                                      ls
+|5:   w.txt                                   w.txt
 |6:
 |7:
 |8:
@@ -111,10 +113,10 @@
 |10:
 |11:
 |12: ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌
-|13:    /tmp/pardes-snap/windowops/cwd Tty+ba
-|14:   ls
-|15:   w.txt
-|16:
+|13:    /tmp/pardes-snap/windowops/cwd Tty+b
+|14:    ash Save Mode Filter Collapse Del
+|15:   ls
+|16:   w.txt
 |17:
 |18:
 |19:
@@ -129,50 +131,53 @@
 |28:
 |29:
 |30:
-== snap move-preview grid=100x31 cursor=4,16
+== snap move-preview grid=100x31 cursor=4,17
 |12:
-== snap moved grid=100x31 cursor=4,16
-== snap altn grid=100x31 cursor=4,20
-|17:    /tmp/pardes-snap/windowops/cwd Tty+ba
-|18:   ls
-|19:   w.txt
-== snap focus-right grid=100x31 cursor=44,5
-|18:   ls                              Right
-== snap debug-on grid=100x31 cursor=44,5
+== snap moved grid=100x31 cursor=4,17
+== snap altn grid=100x31 cursor=4,21
+|15:   w.txt
+|16:
+|17:    /tmp/pardes-snap/windowops/cwd Tty+b
+|18:    ash Save Mode Filter Collapse Del
+|19:   ls
+|20:   w.txt
+== snap focus-right grid=100x31 cursor=44,6
+|19:   ls                              Right
+== snap debug-on grid=100x31 cursor=44,6
 |1:    New Tty Find Grep Joincol Delcol        New Tty Find Grep J╭────────────────────────────────────╮
-|2:    /tmp/pardes-snap/windowops/cwd Tty+ba   /tmp/pardes-snap/wi│pardes  resizes=1                   │
-|3:   ls                                      ls                  │theme  orchard                      │
-|4:   w.txt                                   w.txt               │font   default                      │
-|5:                                                               │terms 4  cols 2                     │
-|6:                                                               │active #2  58x28                    │
-|7:                                                               │scroll 0/28                         │
+|2:    /tmp/pardes-snap/windowops/cwd Tty+b    /tmp/pardes-snap/wi│pardes  resizes=1                   │
+|3:    ash Save Mode Filter Collapse Del        Collapse Del      │theme  orchard                      │
+|4:   ls                                      ls                  │font   default                      │
+|5:   w.txt                                   w.txt               │terms 4  cols 2                     │
+|6:                                                               │active #2  58x27                    │
+|7:                                                               │scroll 0/27                         │
 |8:                                                               │pinch  1.0000                       │
 |9:                                                               │tscroll  0.0000                     │
 |10:                                                               ╰────────────────────────────────────╯
-|18:   ls
+|19:   ls
 == style debug-on grid=100x31
 |0: 0-60 #b2c3b8,#1d2824, 61-65 #f5f7ee,#3c614a, 66-70 #b2c3b8,#1d2824, 71-99 d,#1d2824,
 |1: 0-1 #ffffff,#887455, 2-2 d,#1d2824, 3-34 #b2c3b8,#1d2824, 35-39 d,#1d2824, 40-41 #ffffff,#887455, 42-42 d,#26362d, 43-61 #becfc4,#26362d, 62-99 d,d,
-|2: 0-1 #ffffff,#496656, 2-2 d,#1d2824, 3-33 #b2c3b8,#1d2824, 34-39 #d3b0d9,#1d2824, 40-41 #000000,#add38a, 42-42 d,#26362d, 43-61 #becfc4,#26362d, 62-62 d,d, 63-79 #b2c3b8,d, 80-98 d,#152019, 99-99 d,d,
-|3: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-61 #e5eee5,#0d1410, 62-62 d,d, 63-76 #b2c3b8,d, 77-98 d,#152019, 99-99 d,d,
+|2: 0-1 #ffffff,#496656, 2-2 d,#1d2824, 3-33 #b2c3b8,#1d2824, 34-38 #d3b0d9,#1d2824, 39-39 d,#1d2824, 40-41 #000000,#add38a, 42-42 d,#26362d, 43-61 #becfc4,#26362d, 62-62 d,d, 63-79 #b2c3b8,d, 80-98 d,#152019, 99-99 d,d,
+|3: 0-1 #ffffff,#496656, 2-2 d,#1d2824, 3-5 #d3b0d9,#1d2824, 6-35 #b2c3b8,#1d2824, 36-39 d,#1d2824, 40-41 #000000,#add38a, 42-42 d,#26362d, 43-55 #becfc4,#26362d, 56-61 d,#26362d, 62-62 d,d, 63-76 #b2c3b8,d, 77-98 d,#152019, 99-99 d,d,
 |4: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-61 #e5eee5,#0d1410, 62-62 d,d, 63-76 #b2c3b8,d, 77-98 d,#152019, 99-99 d,d,
-|5: 0-0 d,#608269, 1-39 d,#0d1410, 40-40 d,#608269, 41-61 d,#0d1410, 62-62 d,d, 63-77 #b2c3b8,d, 78-98 d,#152019, 99-99 d,d,
-|6: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-61 #e5eee5,#0d1410, 62-62 d,d, 63-78 #b2c3b8,d, 79-98 d,#152019, 99-99 d,d,
+|5: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-61 #e5eee5,#0d1410, 62-62 d,d, 63-77 #b2c3b8,d, 78-98 d,#152019, 99-99 d,d,
+|6: 0-0 d,#608269, 1-39 d,#0d1410, 40-40 d,#608269, 41-61 d,#0d1410, 62-62 d,d, 63-78 #b2c3b8,d, 79-98 d,#152019, 99-99 d,d,
 |7: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-61 #e5eee5,#0d1410, 62-62 d,d, 63-73 #b2c3b8,d, 74-98 d,#152019, 99-99 d,d,
 |8: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-61 #e5eee5,#0d1410, 62-62 d,d, 63-75 #b2c3b8,d, 76-98 d,#152019, 99-99 d,d,
 |9: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-61 #e5eee5,#0d1410, 62-62 d,d, 63-77 #b2c3b8,d, 78-98 d,#152019, 99-99 d,d,
 |10: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-61 #e5eee5,#0d1410, 62-99 d,d,
 |11: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
 |12: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
-|13: 0-1 #ffffff,#496656, 2-2 d,#1d2824, 3-33 #b2c3b8,#1d2824, 34-39 #d3b0d9,#1d2824, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
-|14: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
+|13: 0-1 #ffffff,#496656, 2-2 d,#1d2824, 3-33 #b2c3b8,#1d2824, 34-38 #d3b0d9,#1d2824, 39-39 d,#1d2824, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
+|14: 0-1 #ffffff,#496656, 2-2 d,#1d2824, 3-5 #d3b0d9,#1d2824, 6-35 #b2c3b8,#1d2824, 36-39 d,#1d2824, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
 |15: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
-|16: 0-0 d,#608269, 1-39 d,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
-|17: 0-1 #ffffff,#496656, 2-2 d,#1d2824, 3-33 #b2c3b8,#1d2824, 34-39 #d3b0d9,#1d2824, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
-|18: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
+|16: 0-0 d,#152019, 1-39 d,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
+|17: 0-1 #ffffff,#496656, 2-2 d,#1d2824, 3-33 #b2c3b8,#1d2824, 34-38 #d3b0d9,#1d2824, 39-39 d,#1d2824, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
+|18: 0-1 #ffffff,#496656, 2-2 d,#1d2824, 3-5 #d3b0d9,#1d2824, 6-35 #b2c3b8,#1d2824, 36-39 d,#1d2824, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
 |19: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
-|20: 0-0 d,#608269, 1-39 d,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
-|21: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
+|20: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
+|21: 0-0 d,#608269, 1-39 d,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
 |22: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
 |23: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
 |24: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
@@ -182,12 +187,12 @@
 |28: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
 |29: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
 |30: 0-0 d,#608269, 1-1 d,#0d1410, 2-39 #e5eee5,#0d1410, 40-40 d,#608269, 41-41 d,#0d1410, 42-99 #e5eee5,#0d1410,
-== snap debug-off grid=100x31 cursor=44,5
+== snap debug-off grid=100x31 cursor=44,6
 |1:    New Tty Find Grep Joincol Delcol        New Tty Find Grep Joincol Delcol
-|2:    /tmp/pardes-snap/windowops/cwd Tty+ba   /tmp/pardes-snap/windowops/cwd Tty+bash Save Mode Filter
-|3:   ls                                      ls
-|4:   w.txt                                   w.txt
-|5:
+|2:    /tmp/pardes-snap/windowops/cwd Tty+b    /tmp/pardes-snap/windowops/cwd Tty+bash Save Mode Filter
+|3:    ash Save Mode Filter Collapse Del        Collapse Del
+|4:   ls                                      ls
+|5:   w.txt                                   w.txt
 |6:
 |7:
 |8: