soft-wrap long lines behind a toggle

4 files changed, 169 insertions, 25 deletions

diff --git a/test/snapshots/builtins.golden b/test/snapshots/builtins.golden
index 8bb8d035..36a7b2d9 100644
--- a/test/snapshots/builtins.golden
+++ b/test/snapshots/builtins.golden
@@ -153,7 +153,6 @@
 |
 |
 |  /tmp/pardes-snap/builtins/cwd/+Help New Del
-|    23 SPC l h   SelectRefs
 |    24 SPC l i   Lspinfo
 |    25 SPC l k   Hover
 |    26 SPC l r   Rename
@@ -171,16 +170,17 @@
 |    38 SPC t r   Crt
 |    39 SPC t s   PdfSections
 |    40 SPC t t   ThemeSel
-|    41 SPC t z   PdfFit
-|    42 SPC w h   Left            C-w h, C-w left
-|    43 SPC w j   Down            C-w j, C-w down
-|    44 SPC w k   Up              C-w k, C-w up
-|    45 SPC w l   Right           C-w l, C-w right
-|    46 SPC w t   Toggleterm
-|    47           Look            enter, right-click
-|    48           Exec            tab, middle-click
-|    49           Theme
-|    50
+|    41 SPC t w   Wrap
+|    42 SPC t z   PdfFit
+|    43 SPC w h   Left            C-w h, C-w left
+|    44 SPC w j   Down            C-w j, C-w down
+|    45 SPC w k   Up              C-w k, C-w up
+|    46 SPC w l   Right           C-w l, C-w right
+|    47 SPC w t   Toggleterm
+|    48           Look            enter, right-click
+|    49           Exec            tab, middle-click
+|    50           Theme
+|    51
 == snap not-a-picker grid=120x60 cursor=7,58
 |New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
 |  /tmp/pardes-snap/builtins/cwd/notes.txt Save New Del
@@ -214,7 +214,6 @@
 |
 |
 |  /tmp/pardes-snap/builtins/cwd/+Help New Del
-|    23 SPC l h   SelectRefs
 |    24 SPC l i   Lspinfo
 |    25 SPC l k   Hover
 |    26 SPC l r   Rename
@@ -232,16 +231,17 @@
 |    38 SPC t r   Crt
 |    39 SPC t s   PdfSections
 |    40 SPC t t   ThemeSel
-|    41 SPC t z   PdfFit
-|    42 SPC w h   Left            C-w h, C-w left
-|    43 SPC w j   Down            C-w j, C-w down
-|    44 SPC w k   Up              C-w k, C-w up
-|    45 SPC w l   Right           C-w l, C-w right
-|    46 SPC w t   Toggleterm
-|    47           Look            enter, right-click
-|    48           Exec            tab, middle-click
-|    49           Theme
-|    50
+|    41 SPC t w   Wrap
+|    42 SPC t z   PdfFit
+|    43 SPC w h   Left            C-w h, C-w left
+|    44 SPC w j   Down            C-w j, C-w down
+|    45 SPC w k   Up              C-w k, C-w up
+|    46 SPC w l   Right           C-w l, C-w right
+|    47 SPC w t   Toggleterm
+|    48           Look            enter, right-click
+|    49           Exec            tab, middle-click
+|    50           Theme
+|    51
 == snap window-group grid=120x60 cursor=7,32
 |New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
 |  /tmp/pardes-snap/builtins/cwd/notes.txt Save New Del
diff --git a/test/snapshots/leader.golden b/test/snapshots/leader.golden
index db443b80..c33b1633 100644
--- a/test/snapshots/leader.golden
+++ b/test/snapshots/leader.golden
@@ -402,9 +402,9 @@
 |    10 SPC t r   Crt
 |    11 SPC t s   PdfSections
 |    12 SPC t t   ThemeSel
-|    13 SPC t z   PdfFit
-|    14
-|
+|    13 SPC t w   Wrap
+|    14 SPC t z   PdfFit
+|    15
 |
 |
 |
diff --git a/test/snapshots/wrap.golden b/test/snapshots/wrap.golden
new file mode 100644
index 00000000..87b70f68
--- /dev/null
+++ b/test/snapshots/wrap.golden
@@ -0,0 +1,90 @@
+== snap off grid=47x14 cursor=7,2
+|New Newcol Find Grep Help Tutor Dump NextColor
+|  /tmp/pardes-snap/wrap/cwd/long.txt Save New D
+|     1 0---------1---------2---------3---------
+|     2 second line
+|     3 third line
+|     4
+|
+|
+|
+|
+|
+|
+|
+|
+== snap on-narrow grid=47x14 cursor=7,2
+|New Newcol Find Grep Help Tutor Dump NextColor
+|  /tmp/pardes-snap/wrap/cwd/long.txt Save New D
+|     1 0---------1---------2---------3---------
+|       4---------5---------6---------7---------
+|       8---------9---------A---------B---------
+|       C---------D---------E---------F---------
+|       G---------H---------I---------J---------
+|     2 second line
+|     3 third line
+|     4
+|
+|
+|
+|
+== snap clicked grid=47x14 cursor=17,3
+|New Newcol Find Grep Help Tutor Dump NextColor
+|  /tmp/pardes-snap/wrap/cwd/long.txt Save New D
+|     1 0---------1---------2---------3---------
+|       4---------5---------6---------7---------
+|       8---------9---------A---------B---------
+|       C---------D---------E---------F---------
+|       G---------H---------I---------J---------
+|     2 second line
+|     3 third line
+|     4
+|
+|
+|
+|
+== snap logical-j grid=47x14 cursor=18,7
+|New Newcol Find Grep Help Tutor Dump NextColor
+|  /tmp/pardes-snap/wrap/cwd/long.txt Save New D
+|     1 0---------1---------2---------3---------
+|       4---------5---------6---------7---------
+|       8---------9---------A---------B---------
+|       C---------D---------E---------F---------
+|       G---------H---------I---------J---------
+|     2 second line
+|     3 third line
+|     4
+|
+|
+|
+|
+== snap off-again grid=47x14 cursor=18,3
+|New Newcol Find Grep Help Tutor Dump NextColor
+|  /tmp/pardes-snap/wrap/cwd/long.txt Save New D
+|     1 0---------1---------2---------3---------
+|     2 second line
+|     3 third line
+|     4
+|
+|
+|
+|
+|
+|
+|
+|
+== snap on-wide grid=127x14 cursor=7,2
+|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/wrap/cwd/long.txt Save New Del
+|     1 0---------1---------2---------3---------4---------5---------6---------7---------8---------9---------
+|       A---------B---------C---------D---------E---------F---------G---------H---------I---------J---------
+|     2 second line
+|     3 third line
+|     4
+|
+|
+|
+|
+|
+|
+|
diff --git a/test/snapshots/wrap.snap b/test/snapshots/wrap.snap
new file mode 100644
index 00000000..c6e976b1
--- /dev/null
+++ b/test/snapshots/wrap.snap
@@ -0,0 +1,54 @@
+# Soft line breaks (the Wrap builtin, `SPC t w`): a file line too long for the
+# pane renders across several body rows instead of running off the right edge.
+# OFF by default, and off it is the clipping render it has always been.
+#
+# Three rules pinned here. The break is at min(100, the pane's own content
+# width), so a narrow pane breaks at its own edge and a wide one stops at 100.
+# A continuation row carries a BLANK gutter — the number belongs to the LINE,
+# and a number repeated down a wrapped line would read as several lines. And
+# the mouse follows the render: a click on a continuation row lands on the
+# character under the pointer, which only works if the click resolves through
+# the same row->line map the body was drawn from.
+#
+# The line is 20 decades, each headed by its own column marker: `0` at column
+# 0, `4` at 40, `A` at 100. So the first character of a continuation row NAMES
+# the column it broke at, and the width rule is readable straight off the grid.
+file long.txt 0---------1---------2---------3---------4---------5---------6---------7---------8---------9---------A---------B---------C---------D---------E---------F---------G---------H---------I---------J---------\nsecond line\nthird line\n
+# 47 columns: the 2-column chrome gutter plus the 5-column line-number gutter
+# leave 40 for content, under 100, so the PANE's width is the break.
+start 14 47 long.txt
+wait 8000 New Newcol
+stable 700 20000
+# off: line 1 on ONE row, cut at the right edge, lines 2 and 3 under it
+snap off
+key space t w
+stable 400 5000
+# on: five rows for line 1 (200 bytes / 40), the four continuations gutterless
+# and starting at `4` `8` `C` `G` — the columns 40, 80, 120, 160
+snap on-narrow
+# a click on the SECOND row of line 1, on the `5` marker at column 50. The
+# cursor must come back to the cell that was clicked (grid 17,3): the click
+# resolved to line 1 column 50, and the render put line 1 column 50 back where
+# the finger was. Off by one row and it would land in line 2 instead.
+press left 18 4
+release left 18 4
+stable 400 5000
+snap clicked
+# motions stay LOGICAL: one `j` from line 1 leaves the whole wrapped line
+# behind and lands on line 2, four screen rows down at once.
+key j
+stable 400 5000
+snap logical-j
+# ...and off again is off: the same clipped body as the first snap, because
+# the map the readers consult goes back to empty and every one of them falls
+# back to the row arithmetic it used before any of this existed
+key space t w
+stable 400 5000
+snap off-again
+# 127 columns: 120 for content, so the 100 wins and the break is at the `A`
+start 14 127 long.txt
+wait 8000 New Newcol
+stable 700 20000
+key space t w
+stable 400 5000
+snap on-wide