focus history is a stack of locations, and the Jumplist is that same stack

One container, not two: focus_hist (a stack of pane ids rebuilt every sync) is
now jumps[] + a current pointer, and the +Jumps buffer is a RENDERING of that
array — nothing copies it, nothing shadows it. prevFocus, Toggleterm, Look's
directory order, Back/Forward, Last and Jumplist all walk the one list.

A pane id is reused, so a location that only remembered an id would retarget
after a respawn: panes now carry a monotonic serial and an entry whose slot
holds a different serial is dead. trackJump compacts those out and fixes the
pointer in the same pass.

The push rule lives in ONE place and says: a location is worth remembering
when you cannot see it any more — a different pane, or more than a bodyful of
rows away in the same one. So hjkl never grows the list and 100G, a search hit
and a goto-definition do.

Ctrl-o/Ctrl-i walk it, SPC j j toggles the last two, SPC j l lists them.
Ctrl-i IS Tab on a legacy host, where the binding simply never fires and
Tab-executes is untouched; kitty reports them apart. SPC j o/i work anywhere.

Two goldens moved, both the SPC ? Help listing gaining four rows.

4 files changed, 656 insertions, 44 deletions

diff --git a/test/snapshots/jumps.golden b/test/snapshots/jumps.golden
new file mode 100644
index 00000000..c49b354e
--- /dev/null
+++ b/test/snapshots/jumps.golden
@@ -0,0 +1,527 @@
+== snap start grid=150x30 cursor=7,2
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|     1 line 1
+|     2 line 2                                                                big.txt
+|     3 line 3
+|     4 line 4
+|     5 line 5
+|     6 line 6
+|     7 line 7
+|     8 line 8
+|     9 line 9
+|    10 line 10
+|    11 line 11
+|    12 line 12
+|    13 line 13
+|    14 line 14
+|    15 line 15
+|    16 line 16
+|    17 line 17
+|    18 line 18
+|    19 line 19
+|    20 line 20
+|    21 line 21
+|    22 line 22
+|    23 line 23
+|    24 line 24
+|    25 line 25
+|    26 line 26
+|    27 line 27
+|    28 line 28
+== snap to-shell grid=150x30 cursor=79,4
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|     1 line 1
+|     2 line 2                                                                big.txt
+|     3 line 3
+|     4 line 4
+|     5 line 5
+|     6 line 6
+|     7 line 7
+|     8 line 8
+|     9 line 9
+|    10 line 10
+|    11 line 11
+|    12 line 12
+|    13 line 13
+|    14 line 14
+|    15 line 15
+|    16 line 16
+|    17 line 17
+|    18 line 18
+|    19 line 19
+|    20 line 20
+|    21 line 21
+|    22 line 22
+|    23 line 23
+|    24 line 24
+|    25 line 25
+|    26 line 26
+|    27 line 27
+|    28 line 28
+== snap to-file grid=150x30 cursor=7,2
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|     1 line 1
+|     2 line 2                                                                big.txt
+|     3 line 3
+|     4 line 4
+|     5 line 5
+|     6 line 6
+|     7 line 7
+|     8 line 8
+|     9 line 9
+|    10 line 10
+|    11 line 11
+|    12 line 12
+|    13 line 13
+|    14 line 14
+|    15 line 15
+|    16 line 16
+|    17 line 17
+|    18 line 18
+|    19 line 19
+|    20 line 20
+|    21 line 21
+|    22 line 22
+|    23 line 23
+|    24 line 24
+|    25 line 25
+|    26 line 26
+|    27 line 27
+|    28 line 28
+== snap goto-100 grid=150x30 cursor=7,26
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|    76 line 76
+|    77 line 77                                                               big.txt
+|    78 line 78
+|    79 line 79
+|    80 line 80
+|    81 line 81
+|    82 line 82
+|    83 line 83
+|    84 line 84
+|    85 line 85
+|    86 line 86
+|    87 line 87
+|    88 line 88
+|    89 line 89
+|    90 line 90
+|    91 line 91
+|    92 line 92
+|    93 line 93
+|    94 line 94
+|    95 line 95
+|    96 line 96
+|    97 line 97
+|    98 line 98
+|    99 line 99
+|   100 line 100
+|   101 line 101
+|   102 line 102
+|   103 line 103
+== snap back-in-file grid=150x30 cursor=7,2
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|     1 line 1
+|     2 line 2                                                                big.txt
+|     3 line 3
+|     4 line 4
+|     5 line 5
+|     6 line 6
+|     7 line 7
+|     8 line 8
+|     9 line 9
+|    10 line 10
+|    11 line 11
+|    12 line 12
+|    13 line 13
+|    14 line 14
+|    15 line 15
+|    16 line 16
+|    17 line 17
+|    18 line 18
+|    19 line 19
+|    20 line 20
+|    21 line 21
+|    22 line 22
+|    23 line 23
+|    24 line 24
+|    25 line 25
+|    26 line 26
+|    27 line 27
+|    28 line 28
+== snap back-to-shell grid=150x30 cursor=79,4
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|     1 line 1
+|     2 line 2                                                                big.txt
+|     3 line 3
+|     4 line 4
+|     5 line 5
+|     6 line 6
+|     7 line 7
+|     8 line 8
+|     9 line 9
+|    10 line 10
+|    11 line 11
+|    12 line 12
+|    13 line 13
+|    14 line 14
+|    15 line 15
+|    16 line 16
+|    17 line 17
+|    18 line 18
+|    19 line 19
+|    20 line 20
+|    21 line 21
+|    22 line 22
+|    23 line 23
+|    24 line 24
+|    25 line 25
+|    26 line 26
+|    27 line 27
+|    28 line 28
+== snap forward-file grid=150x30 cursor=7,2
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|     1 line 1
+|     2 line 2                                                                big.txt
+|     3 line 3
+|     4 line 4
+|     5 line 5
+|     6 line 6
+|     7 line 7
+|     8 line 8
+|     9 line 9
+|    10 line 10
+|    11 line 11
+|    12 line 12
+|    13 line 13
+|    14 line 14
+|    15 line 15
+|    16 line 16
+|    17 line 17
+|    18 line 18
+|    19 line 19
+|    20 line 20
+|    21 line 21
+|    22 line 22
+|    23 line 23
+|    24 line 24
+|    25 line 25
+|    26 line 26
+|    27 line 27
+|    28 line 28
+== snap forward-100 grid=150x30 cursor=7,16
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|    86 line 86
+|    87 line 87                                                               big.txt
+|    88 line 88
+|    89 line 89
+|    90 line 90
+|    91 line 91
+|    92 line 92
+|    93 line 93
+|    94 line 94
+|    95 line 95
+|    96 line 96
+|    97 line 97
+|    98 line 98
+|    99 line 99
+|   100 line 100
+|   101 line 101
+|   102 line 102
+|   103 line 103
+|   104 line 104
+|   105 line 105
+|   106 line 106
+|   107 line 107
+|   108 line 108
+|   109 line 109
+|   110 line 110
+|   111 line 111
+|   112 line 112
+|   113 line 113
+== snap last grid=150x30 cursor=79,4
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|    86 line 86
+|    87 line 87                                                               big.txt
+|    88 line 88
+|    89 line 89
+|    90 line 90
+|    91 line 91
+|    92 line 92
+|    93 line 93
+|    94 line 94
+|    95 line 95
+|    96 line 96
+|    97 line 97
+|    98 line 98
+|    99 line 99
+|   100 line 100
+|   101 line 101
+|   102 line 102
+|   103 line 103
+|   104 line 104
+|   105 line 105
+|   106 line 106
+|   107 line 107
+|   108 line 108
+|   109 line 109
+|   110 line 110
+|   111 line 111
+|   112 line 112
+|   113 line 113
+== snap last-back grid=150x30 cursor=7,16
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|    86 line 86
+|    87 line 87                                                               big.txt
+|    88 line 88
+|    89 line 89
+|    90 line 90
+|    91 line 91
+|    92 line 92
+|    93 line 93
+|    94 line 94
+|    95 line 95
+|    96 line 96
+|    97 line 97
+|    98 line 98
+|    99 line 99
+|   100 line 100
+|   101 line 101
+|   102 line 102
+|   103 line 103
+|   104 line 104
+|   105 line 105
+|   106 line 106
+|   107 line 107
+|   108 line 108
+|   109 line 109
+|   110 line 110
+|   111 line 111
+|   112 line 112
+|   113 line 113
+== snap jumplist grid=150x30 cursor=7,16
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|    86 line 86
+|    87 line 87                                                               big.txt
+|    88 line 88
+|    89 line 89
+|    90 line 90
+|    91 line 91
+|    92 line 92
+|    93 line 93
+|    94 line 94
+|    95 line 95
+|    96 line 96
+|    97 line 97
+|    98 line 98
+|    99 line 99
+|   100 line 100
+|   101 line 101
+|   102 line 102
+|   103 line 103
+|   104 line 104
+|   105 line 105
+|   106 line 106
+|  NOR /tmp/pardes-snap/jumps/cwd/+Jumps Del
+|     1 /tmp/pardes-snap/jumps/cwd/big.txt:1:1 line 1
+|     2 @p1:3:3 /tmp/pardes-snap/jumps/cwd
+|     3 /tmp/pardes-snap/jumps/cwd/big.txt:1:1 line 1
+|     4 /tmp/pardes-snap/jumps/cwd/big.txt:100:1 line 100
+|     5 @p1:3:3 /tmp/pardes-snap/jumps/cwd
+|     6 /tmp/pardes-snap/jumps/cwd/big.txt:100:1 line 100
+== snap step1 grid=150x30 cursor=7,2
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|     1 line 1
+|     2 line 2                                                                big.txt
+|     3 line 3
+|     4 line 4
+|     5 line 5
+|     6 line 6
+|     7 line 7
+|     8 line 8
+|     9 line 9
+|    10 line 10
+|    11 line 11
+|    12 line 12
+|    13 line 13
+|    14 line 14
+|    15 line 15
+|    16 line 16
+|    17 line 17
+|    18 line 18
+|    19 line 19
+|    20 line 20
+|    21 line 21
+|  NOR /tmp/pardes-snap/jumps/cwd/+Jumps Del
+|     1 /tmp/pardes-snap/jumps/cwd/big.txt:1:1 line 1
+|     2 @p1:3:3 /tmp/pardes-snap/jumps/cwd
+|     3 /tmp/pardes-snap/jumps/cwd/big.txt:1:1 line 1
+|     4 /tmp/pardes-snap/jumps/cwd/big.txt:100:1 line 100
+|     5 @p1:3:3 /tmp/pardes-snap/jumps/cwd
+|     6 /tmp/pardes-snap/jumps/cwd/big.txt:100:1 line 100
+== style step1
+|0: 0-52 #949494,#121212, 53-149 d,#121212,
+|1: 0-1 d,#626262, 2-48 #949494,#121212, 49-74 d,#121212, 75-76 d,#262626, 77-110 #949494,#121212, 111-149 d,#121212,
+|2: 0-1 d,#444444, 2-6 #949494,#121212, 7-12 #bdbdbd,#080808, 13-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|3: 0-1 d,#444444, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|4: 0-1 d,#121212, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|5: 0-1 d,#121212, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|6: 0-1 d,#121212, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|7: 0-1 d,#121212, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|8: 0-1 d,#121212, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|9: 0-1 d,#121212, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|10: 0-1 d,#121212, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|11: 0-1 d,#121212, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|12: 0-1 d,#121212, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|13: 0-1 d,#121212, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|14: 0-1 d,#121212, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|15: 0-1 d,#121212, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|16: 0-1 d,#121212, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|17: 0-1 d,#121212, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|18: 0-1 d,#121212, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|19: 0-1 d,#121212, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|20: 0-1 d,#121212, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|21: 0-1 d,#121212, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|22: 0-1 d,#121212, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|23: 0-1 d,#262626, 2-42 #949494,#121212, 43-74 d,#121212, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|24: 0-1 d,#444444, 2-6 #626262,#080808, 7-74 #d8c8a8,#4a3a1e, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|25: 0-1 d,#444444, 2-6 #626262,#080808, 7-40 #bdbdbd,#080808, 41-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|26: 0-1 d,#444444, 2-6 #626262,#080808, 7-51 #bdbdbd,#080808, 52-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|27: 0-1 d,#444444, 2-6 #626262,#080808, 7-55 #bdbdbd,#080808, 56-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|28: 0-1 d,#444444, 2-6 #626262,#080808, 7-40 #bdbdbd,#080808, 41-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+|29: 0-1 d,#121212, 2-6 #626262,#080808, 7-55 #bdbdbd,#080808, 56-74 d,#080808, 75-76 d,#444444, 77-149 #bdbdbd,#080808,
+== snap step2-shell grid=150x30 cursor=7,2
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|     1 line 1
+|     2 line 2                                                                big.txt
+|     3 line 3
+|     4 line 4
+|     5 line 5
+|     6 line 6
+|     7 line 7
+|     8 line 8
+|     9 line 9
+|    10 line 10
+|    11 line 11
+|    12 line 12
+|    13 line 13
+|    14 line 14
+|    15 line 15
+|    16 line 16
+|    17 line 17
+|    18 line 18
+|    19 line 19
+|    20 line 20
+|    21 line 21
+|  NOR /tmp/pardes-snap/jumps/cwd/+Jumps Del
+|     1 /tmp/pardes-snap/jumps/cwd/big.txt:1:1 line 1
+|     2 @p1:3:3 /tmp/pardes-snap/jumps/cwd
+|     3 /tmp/pardes-snap/jumps/cwd/big.txt:1:1 line 1
+|     4 /tmp/pardes-snap/jumps/cwd/big.txt:100:1 line 100
+|     5 @p1:3:3 /tmp/pardes-snap/jumps/cwd
+|     6 /tmp/pardes-snap/jumps/cwd/big.txt:100:1 line 100
+== snap step4-line100 grid=150x30 cursor=7,12
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|    90 line 90
+|    91 line 91                                                               big.txt
+|    92 line 92
+|    93 line 93
+|    94 line 94
+|    95 line 95
+|    96 line 96
+|    97 line 97
+|    98 line 98
+|    99 line 99
+|   100 line 100
+|   101 line 101
+|   102 line 102
+|   103 line 103
+|   104 line 104
+|   105 line 105
+|   106 line 106
+|   107 line 107
+|   108 line 108
+|   109 line 109
+|   110 line 110
+|  NOR /tmp/pardes-snap/jumps/cwd/+Jumps Del
+|     1 /tmp/pardes-snap/jumps/cwd/big.txt:1:1 line 1
+|     2 @p1:3:3 /tmp/pardes-snap/jumps/cwd
+|     3 /tmp/pardes-snap/jumps/cwd/big.txt:1:1 line 1
+|     4 /tmp/pardes-snap/jumps/cwd/big.txt:100:1 line 100
+|     5 @p1:3:3 /tmp/pardes-snap/jumps/cwd
+|     6 /tmp/pardes-snap/jumps/cwd/big.txt:100:1 line 100
+== snap step-back grid=150x30 cursor=7,2
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|     1 line 1
+|     2 line 2                                                                big.txt
+|     3 line 3
+|     4 line 4
+|     5 line 5
+|     6 line 6
+|     7 line 7
+|     8 line 8
+|     9 line 9
+|    10 line 10
+|    11 line 11
+|    12 line 12
+|    13 line 13
+|    14 line 14
+|    15 line 15
+|    16 line 16
+|    17 line 17
+|    18 line 18
+|    19 line 19
+|    20 line 20
+|    21 line 21
+|  NOR /tmp/pardes-snap/jumps/cwd/+Jumps Del
+|     1 /tmp/pardes-snap/jumps/cwd/big.txt:1:1 line 1
+|     2 @p1:3:3 /tmp/pardes-snap/jumps/cwd
+|     3 /tmp/pardes-snap/jumps/cwd/big.txt:1:1 line 1
+|     4 /tmp/pardes-snap/jumps/cwd/big.txt:100:1 line 100
+|     5 @p1:3:3 /tmp/pardes-snap/jumps/cwd
+|     6 /tmp/pardes-snap/jumps/cwd/big.txt:100:1 line 100
+== snap look-row grid=150x30 cursor=7,12
+|Kill Newcol Tutor Debug NextColor Dump Find Grep Help
+|  NOR /tmp/pardes-snap/jumps/cwd/big.txt Save Del                            NOR /tmp/pardes-snap/jumps/cwd Del
+|    90 line 90
+|    91 line 91                                                               big.txt
+|    92 line 92
+|    93 line 93
+|    94 line 94
+|    95 line 95
+|    96 line 96
+|    97 line 97
+|    98 line 98
+|    99 line 99
+|   100 line 100
+|   101 line 101
+|   102 line 102
+|   103 line 103
+|   104 line 104
+|   105 line 105
+|   106 line 106
+|   107 line 107
+|   108 line 108
+|   109 line 109
+|   110 line 110
+|  NOR /tmp/pardes-snap/jumps/cwd/+Jumps Del
+|     1 /tmp/pardes-snap/jumps/cwd/big.txt:1:1 line 1
+|     2 @p1:3:3 /tmp/pardes-snap/jumps/cwd
+|     3 /tmp/pardes-snap/jumps/cwd/big.txt:1:1 line 1
+|     4 /tmp/pardes-snap/jumps/cwd/big.txt:100:1 line 100
+|     5 @p1:3:3 /tmp/pardes-snap/jumps/cwd
+|     6 /tmp/pardes-snap/jumps/cwd/big.txt:100:1 line 100
diff --git a/test/snapshots/jumps.snap b/test/snapshots/jumps.snap
new file mode 100644
index 00000000..900b63a1
--- /dev/null
+++ b/test/snapshots/jumps.snap
@@ -0,0 +1,85 @@
+# RULE: there is ONE focus history and it is a stack of LOCATIONS — a pane and
+# a spot in it. Ctrl-o walks it back, Ctrl-i walks it forward again, `SPC j j`
+# (Last) hops to the newest OTHER pane, and `SPC j l` (Jumplist) writes the
+# same stack out as an output buffer whose rows are ordinary look targets, so
+# n/N step them. What gets ONTO the stack is decided in one place (trackJump):
+# focus ended the update in a different pane, or more than a bodyful of rows
+# away in the same one — which is why `100G` below leaves a location behind
+# and the j/k that follow it do not.
+#
+# Focus and position both show in the golden's `cursor=` header: that is the
+# ACTIVE pane's cursor, so each snap is named by where it should land.
+lines big.txt 200
+start 30 150 big.txt
+wait 8000 big.txt
+stable 700 20000
+# left column = big.txt, right column = the launch shell; the file has focus
+snap start
+# two focus moves, so the stack is file -> shell -> file
+key space w l
+stable 400 5000
+snap to-shell
+key space w h
+stable 400 5000
+snap to-file
+# a FAR motion inside one pane: 100G is a jump, so the line we left is
+# remembered and Ctrl-o can come back to it
+text 100
+key G
+stable 400 5000
+snap goto-100
+# Ctrl-o: back to line 1 of the same pane — a stack of panes could not do this
+key c-o
+stable 400 5000
+snap back-in-file
+# ...and back again into the shell
+key c-o
+stable 400 5000
+snap back-to-shell
+# Ctrl-i forward, twice: the shell entry, then line 100 again. Sent as the
+# kitty-protocol CSI u (`CSI 105;5u`) because on the wire Ctrl-i IS Tab —
+# see config.jump_keys.
+send \e[105;5u
+stable 400 5000
+snap forward-file
+send \e[105;5u
+stable 400 5000
+snap forward-100
+# SPC j j — the newest OTHER pane, and pressing it again comes straight back
+key space j j
+stable 400 5000
+snap last
+key space j j
+stable 400 5000
+snap last-back
+# SPC j l — the stack as text: `location text` rows, the file naming itself
+# and the shell spelled @pN because it has no path
+key space j l
+stable 700 15000
+snap jumplist
+# n/N step the rows and look them, exactly as they do a +Search: the stepped
+# row is selected in the buffer (snapstyle) and the pane it names follows.
+# Row 1 is the file at line 1, row 2 the shell (no path, so `@pN`), row 4 the
+# file at line 100 — so the body visibly rides the list.
+key n
+stable 700 15000
+snap step1
+snapstyle step1
+key n
+stable 700 15000
+snap step2-shell
+key n
+stable 700 15000
+key n
+stable 700 15000
+snap step4-line100
+key N
+stable 700 15000
+snap step-back
+# and an ordinary LOOK on a row goes there too — the leading word IS a
+# location, so the right-click look resolves it like any other path. Row 4
+# again, this time by clicking it.
+press right 16 28
+release right 16 28
+stable 700 15000
+snap look-row
diff --git a/test/snapshots/leader.golden b/test/snapshots/leader.golden
index 6f88ad7e..831d4557 100644
--- a/test/snapshots/leader.golden
+++ b/test/snapshots/leader.golden
@@ -196,13 +196,13 @@
 |     9 SPC f g   Grep
 |    10 SPC f s   Save
 |    11 SPC h t   Tutor
-|    12 SPC k     Kill
-|    13 SPC l D   WsDiagnostics
-|    14 SPC l S   WsSymbols
-|    15 SPC l a   CodeAction
-|    16 SPC l d   Diagnostics
-|    17 SPC l h   SelectRefs
-|    18 SPC l i   Lspinfo
+|    12 SPC j i   Forward
+|    13 SPC j j   Last
+|    14 SPC j l   Jumplist
+|    15 SPC j o   Back
+|    16 SPC k     Kill
+|    17 SPC l D   WsDiagnostics
+|    18 SPC l S   WsSymbols
 == snap help-group grid=100x40 cursor=7,22
 |Kill Newcol Tutor Debug NextColor Dump Find Grep Help
 |  NOR /tmp/pardes-snap/leader/cwd/cmds.txt Save De  NOR /tmp/pardes-snap/leader/cwd Del
@@ -360,13 +360,13 @@
 |     9 SPC f g   Grep
 |    10 SPC f s   Save
 |    11 SPC h t   Tutor
-|    12 SPC k     Kill
-|    13 SPC l D   WsDiagnostics
-|    14 SPC l S   WsSymbols
-|    15 SPC l a   CodeAction
-|    16 SPC l d   Diagnostics
-|    17 SPC l h   SelectRefs
-|    18 SPC l i   Lspinfo
+|    12 SPC j i   Forward
+|    13 SPC j j   Last
+|    14 SPC j l   Jumplist
+|    15 SPC j o   Back
+|    16 SPC k     Kill
+|    17 SPC l D   WsDiagnostics
+|    18 SPC l S   WsSymbols
 == snap help-toggles grid=100x40 cursor=7,22
 |Kill Newcol Tutor Debug NextColor Dump Find Grep Help
 |  NOR /tmp/pardes-snap/leader/cwd/cmds.txt Save De  NOR /tmp/pardes-snap/leader/cwd Del
diff --git a/test/snapshots/ttyhelp.golden b/test/snapshots/ttyhelp.golden
index 6cb6d930..ec3a4fd6 100644
--- a/test/snapshots/ttyhelp.golden
+++ b/test/snapshots/ttyhelp.golden
@@ -45,21 +45,21 @@
 |     9 SPC f g   Grep
 |    10 SPC f s   Save
 |    11 SPC h t   Tutor
-|    12 SPC k     Kill
-|    13 SPC l D   WsDiagnostics
-|    14 SPC l S   WsSymbols
-|    15 SPC l a   CodeAction
-|    16 SPC l d   Diagnostics
-|    17 SPC l h   SelectRefs
-|    18 SPC l i   Lspinfo
-|    19 SPC l k   Hover
-|    20 SPC l r   Rename
-|    21 SPC l s   Symbols
-|    22 SPC l w   Lspwhy
-|    23 SPC s d   Dump
-|    24 SPC s r   Restore
-|    25 SPC t a   Ascii
-|    26 SPC t c   Colors
+|    12 SPC j i   Forward
+|    13 SPC j j   Last
+|    14 SPC j l   Jumplist
+|    15 SPC j o   Back
+|    16 SPC k     Kill
+|    17 SPC l D   WsDiagnostics
+|    18 SPC l S   WsSymbols
+|    19 SPC l a   CodeAction
+|    20 SPC l d   Diagnostics
+|    21 SPC l h   SelectRefs
+|    22 SPC l i   Lspinfo
+|    23 SPC l k   Hover
+|    24 SPC l r   Rename
+|    25 SPC l s   Symbols
+|    26 SPC l w   Lspwhy
 == snap leaderworks grid=100x30 cursor=7,4
 |Kill Newcol Tutor Debug NextColor Dump Find Grep Help
 |  TTY /tmp/pardes-snap/ttyhelp/cwd Del
@@ -76,18 +76,18 @@
 |     9 SPC f g   Grep
 |    10 SPC f s   Save
 |    11 SPC h t   Tutor
-|    12 SPC k     Kill
-|    13 SPC l D   WsDiagnostics
-|    14 SPC l S   WsSymbols
-|    15 SPC l a   CodeAction
-|    16 SPC l d   Diagnostics
-|    17 SPC l h   SelectRefs
-|    18 SPC l i   Lspinfo
-|    19 SPC l k   Hover
-|    20 SPC l r   Rename
-|    21 SPC l s   Symbols
-|    22 SPC l w   Lspwhy
-|    23 SPC s d   Dump
-|    24 SPC s r   Restore
-|    25 SPC t a   Ascii
-|    26 SPC t c   Colors
+|    12 SPC j i   Forward
+|    13 SPC j j   Last
+|    14 SPC j l   Jumplist
+|    15 SPC j o   Back
+|    16 SPC k     Kill
+|    17 SPC l D   WsDiagnostics
+|    18 SPC l S   WsSymbols
+|    19 SPC l a   CodeAction
+|    20 SPC l d   Diagnostics
+|    21 SPC l h   SelectRefs
+|    22 SPC l i   Lspinfo
+|    23 SPC l k   Hover
+|    24 SPC l r   Rename
+|    25 SPC l s   Symbols
+|    26 SPC l w   Lspwhy