host: the core owns the event loop; every platform becomes a vtable of optional methods

1 files changed, 85 insertions, 85 deletions

diff --git a/test/snapshots/windowops.golden b/test/snapshots/windowops.golden
index e6b4614b..c566bdc1 100644
--- a/test/snapshots/windowops.golden
+++ b/test/snapshots/windowops.golden
@@ -1,6 +1,6 @@
 == snap hover-v grid=100x30 cursor=4,4
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/windowops/cwd New Del Filter  ╎  /tmp/pardes-snap/windowops/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/windowops/cwd New Newtty Del F╎  /tmp/pardes-snap/windowops/cwd New Newtty Del Fi
 |  ls                                             ╎  ls
 |  w.txt                                          ╎  w.txt
 |                                                 ╎
@@ -15,7 +15,7 @@
 |                                                 ╎
 |                                                 ╎
 |                                                 ╎
-|  /tmp/pardes-snap/windowops/cwd New Del Filter  ╎
+|  /tmp/pardes-snap/windowops/cwd New Newtty Del F╎
 |  ls                                             ╎
 |  w.txt                                          ╎
 |                                                 ╎
@@ -30,8 +30,8 @@
 |                                                 ╎
 |                                                 ╎
 == snap hover-h grid=100x30 cursor=4,4
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/windowops/cwd New Del Filter     /tmp/pardes-snap/windowops/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/windowops/cwd New Newtty Del Fi  /tmp/pardes-snap/windowops/cwd New Newtty Del Fi
 |  ls                                                ls
 |  w.txt                                             w.txt
 |
@@ -46,7 +46,7 @@
 |
 |
 |╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌
-|  /tmp/pardes-snap/windowops/cwd New Del Filter
+|  /tmp/pardes-snap/windowops/cwd New Newtty Del Fi
 |  ls
 |  w.txt
 |
@@ -61,8 +61,8 @@
 |
 |
 == snap border-drag grid=100x30 cursor=4,4
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/windowops/cwd New De╎ Filter     /tmp/pardes-snap/windowops/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/windowops/cwd New Ne╎tty Del Fi  /tmp/pardes-snap/windowops/cwd New Newtty Del Fi
 |  ls                                   ╎            ls
 |  w.txt                                ╎            w.txt
 |                                       ╎
@@ -77,7 +77,7 @@
 |                                       ╎
 |                                       ╎
 |                                       ╎
-|  /tmp/pardes-snap/windowops/cwd New De╎ Filter
+|  /tmp/pardes-snap/windowops/cwd New Ne╎tty Del Fi
 |  ls                                   ╎
 |  w.txt                                ╎
 |                                       ╎
@@ -92,8 +92,8 @@
 |                                       ╎
 |                                       ╎
 == snap border-done grid=100x30 cursor=4,4
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/windowops/cwd New De╎  /tmp/pardes-snap/windowops/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/windowops/cwd New Ne╎  /tmp/pardes-snap/windowops/cwd New Newtty Del Filter
 |  ls                                   ╎  ls
 |  w.txt                                ╎  w.txt
 |                                       ╎
@@ -108,7 +108,7 @@
 |                                       ╎
 |                                       ╎
 |                                       ╎
-|  /tmp/pardes-snap/windowops/cwd New De╎
+|  /tmp/pardes-snap/windowops/cwd New Ne╎
 |  ls                                   ╎
 |  w.txt                                ╎
 |                                       ╎
@@ -123,8 +123,8 @@
 |                                       ╎
 |                                       ╎
 == snap hborder-done grid=100x30 cursor=4,4
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/windowops/cwd New Del  /tmp/pardes-snap/windowops/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/windowops/cwd New New  /tmp/pardes-snap/windowops/cwd New Newtty Del Filter
 |  ls                                      ls
 |  w.txt                                   w.txt
 |
@@ -135,7 +135,7 @@
 |
 |
 |╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌
-|  /tmp/pardes-snap/windowops/cwd New Del
+|  /tmp/pardes-snap/windowops/cwd New New
 |  ls
 |  w.txt
 |
@@ -154,8 +154,8 @@
 |
 |
 == snap move-preview grid=100x30 cursor=4,15
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/windowops/cwd New Del  /tmp/pardes-snap/windowops/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/windowops/cwd New New  /tmp/pardes-snap/windowops/cwd New Newtty Del Filter
 |  ls                                      ls
 |  w.txt                                   w.txt
 |
@@ -166,7 +166,7 @@
 |
 |
 |
-|  /tmp/pardes-snap/windowops/cwd New Del
+|  /tmp/pardes-snap/windowops/cwd New New
 |  ls
 |  w.txt
 |
@@ -185,8 +185,8 @@
 |
 |
 == snap moved grid=100x30 cursor=4,15
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/windowops/cwd New Del  /tmp/pardes-snap/windowops/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/windowops/cwd New New  /tmp/pardes-snap/windowops/cwd New Newtty Del Filter
 |  ls                                      ls
 |  w.txt                                   w.txt
 |
@@ -197,7 +197,7 @@
 |
 |
 |
-|  /tmp/pardes-snap/windowops/cwd New Del
+|  /tmp/pardes-snap/windowops/cwd New New
 |  ls
 |  w.txt
 |
@@ -216,8 +216,8 @@
 |
 |
 == snap altn grid=100x30 cursor=4,19
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/windowops/cwd New Del  /tmp/pardes-snap/windowops/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/windowops/cwd New New  /tmp/pardes-snap/windowops/cwd New Newtty Del Filter
 |  ls                                      ls
 |  w.txt                                   w.txt
 |
@@ -228,11 +228,11 @@
 |
 |
 |
-|  /tmp/pardes-snap/windowops/cwd New Del
+|  /tmp/pardes-snap/windowops/cwd New New
 |  ls
 |  w.txt
 |
-|  /tmp/pardes-snap/windowops/cwd New Del
+|  /tmp/pardes-snap/windowops/cwd New New
 |  ls
 |  w.txt
 |
@@ -247,8 +247,8 @@
 |
 |
 == snap focus-right grid=100x30 cursor=44,4
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/windowops/cwd New Del  /tmp/pardes-snap/windowops/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/windowops/cwd New New  /tmp/pardes-snap/windowops/cwd New Newtty Del Filter
 |  ls                                      ls
 |  w.txt                                   w.txt
 |
@@ -259,11 +259,11 @@
 |
 |
 |
-|  /tmp/pardes-snap/windowops/cwd New Del
+|  /tmp/pardes-snap/windowops/cwd New New
 |  ls
 |  w.txt
 |
-|  /tmp/pardes-snap/windowops/cwd New Del
+|  /tmp/pardes-snap/windowops/cwd New New
 |  ls
 |  w.txt
 |
@@ -277,24 +277,24 @@
 |
 |
 |
-== snap debug-on grid=100x30 cursor=44,4
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/windowops/cwd New Del  /tmp/pardes-snap/win╭────────────────────────────────────╮
-|  ls                                      ls                  │pardes  resizes=1                   │
-|  w.txt                                   w.txt               │theme  helix                        │
-|                                                              │font   default                      │
-|                                                              │terms 4  cols 2                     │
-|                                                              │active #2  58x28                    │
-|                                                              │scroll 0/28                         │
-|                                                              │pinch  1.0000                       │
-|                                                              │tscroll  0.0000                     │
-|                                                              ╰────────────────────────────────────╯
+== snap debug-on grid=100x30 cursor=7,2
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /Tutor             Save New Newtty Del  /tmp/pardes-snap/windowops/cwd New Newtty Del Filter
+|     1                                    ls
+|     2                                P↩  w.txt
+|       ARDES TUTOR
+|     3                      tmux + vi +
+|  /tmp/pardes-snap/windowops/cwd New New
+|  ls
+|  w.txt
+|
+|
 |
-|  /tmp/pardes-snap/windowops/cwd New Del
+|  /tmp/pardes-snap/windowops/cwd New New
 |  ls
 |  w.txt
 |
-|  /tmp/pardes-snap/windowops/cwd New Del
+|  /tmp/pardes-snap/windowops/cwd New New
 |  ls
 |  w.txt
 |
@@ -309,54 +309,54 @@
 |
 |
 == style debug-on
-|0: 0-46 #949494,#121212, 47-51 #080808,#80a0ff, 52-56 #949494,#121212, 57-99 d,#121212,
-|1: 0-1 #ffffff,#262626, 2-39 #949494,#121212, 40-41 #ffffff,#626262, 42-61 #949494,#121212, 62-99 d,d,
-|2: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-61 #bdbdbd,#080808, 62-62 d,d, 63-79 #949494,d, 80-98 d,#121212, 99-99 d,d,
-|3: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-61 #bdbdbd,#080808, 62-62 d,d, 63-74 #949494,d, 75-98 d,#121212, 99-99 d,d,
-|4: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-61 #bdbdbd,#080808, 62-62 d,d, 63-76 #949494,d, 77-98 d,#121212, 99-99 d,d,
-|5: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-61 #bdbdbd,#080808, 62-62 d,d, 63-77 #949494,d, 78-98 d,#121212, 99-99 d,d,
-|6: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-61 #bdbdbd,#080808, 62-62 d,d, 63-78 #949494,d, 79-98 d,#121212, 99-99 d,d,
-|7: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-61 #bdbdbd,#080808, 62-62 d,d, 63-73 #949494,d, 74-98 d,#121212, 99-99 d,d,
-|8: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-61 #bdbdbd,#080808, 62-62 d,d, 63-75 #949494,d, 76-98 d,#121212, 99-99 d,d,
-|9: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-61 #bdbdbd,#080808, 62-62 d,d, 63-77 #949494,d, 78-98 d,#121212, 99-99 d,d,
-|10: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-61 #bdbdbd,#080808, 62-99 d,d,
-|11: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|12: 0-1 #ffffff,#262626, 2-39 #949494,#121212, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|13: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|14: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|15: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|16: 0-1 #ffffff,#262626, 2-39 #949494,#121212, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|17: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|18: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|19: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|20: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|21: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|22: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|23: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|24: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|25: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|26: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|27: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|28: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-|29: 0-0 d,#444444, 1-1 d,#080808, 2-39 #bdbdbd,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-99 #bdbdbd,#080808,
-== snap debug-off grid=100x30 cursor=44,4
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/windowops/cwd New Del  /tmp/pardes-snap/windowops/cwd New Del Filter
-|  ls                                      ls
-|  w.txt                                   w.txt
-|
-|
-|
-|
-|
+|0: 0-43 #949494,#121212, 44-48 #080808,#80a0ff, 49-74 #949494,#121212, 75-99 d,#121212,
+|1: 0-1 #ffffff,#626262, 2-39 #949494,#121212, 40-41 #ffffff,#262626, 42-93 #949494,#121212, 94-99 d,#121212,
+|2: 0-0 d,#444444, 1-1 d,#080808, 2-6 #949494,#121212, 7-39 d,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-43 #bdbdbd,#080808, 44-99 d,#080808,
+|3: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-38 #bdbdbd,#080808, 39-39 #626262,#080808, 40-40 d,#444444, 41-41 d,#080808, 42-46 #bdbdbd,#080808, 47-99 d,#080808,
+|4: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-17 #bdbdbd,#080808, 18-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|5: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-38 #bdbdbd,#080808, 39-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|6: 0-1 #ffffff,#262626, 2-39 #949494,#121212, 40-40 d,#444444, 41-99 d,#080808,
+|7: 0-0 d,#444444, 1-1 d,#080808, 2-3 #bdbdbd,#080808, 4-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|8: 0-0 d,#444444, 1-1 d,#080808, 2-6 #bdbdbd,#080808, 7-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|9: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|10: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|11: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|12: 0-1 #ffffff,#262626, 2-39 #949494,#121212, 40-40 d,#444444, 41-99 d,#080808,
+|13: 0-0 d,#444444, 1-1 d,#080808, 2-3 #bdbdbd,#080808, 4-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|14: 0-0 d,#444444, 1-1 d,#080808, 2-6 #bdbdbd,#080808, 7-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|15: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|16: 0-1 #ffffff,#262626, 2-39 #949494,#121212, 40-40 d,#444444, 41-99 d,#080808,
+|17: 0-0 d,#444444, 1-1 d,#080808, 2-3 #bdbdbd,#080808, 4-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|18: 0-0 d,#444444, 1-1 d,#080808, 2-6 #bdbdbd,#080808, 7-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|19: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|20: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|21: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|22: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|23: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|24: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|25: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|26: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|27: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|28: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+|29: 0-0 d,#444444, 1-39 d,#080808, 40-40 d,#444444, 41-99 d,#080808,
+== snap debug-off grid=100x30 cursor=7,4
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /Tutor             Save New Newtty Del  /tmp/pardes-snap/windowops/cwd New Newtty Del Filter
+|     1                                    ls
+|  /Tutor             Save New Newtty Del  w.txt
+|     1
+|     2                                P
+|  /tmp/pardes-snap/windowops/cwd New New
+|  ls
+|  w.txt
 |
 |
 |
-|  /tmp/pardes-snap/windowops/cwd New Del
+|  /tmp/pardes-snap/windowops/cwd New New
 |  ls
 |  w.txt
 |
-|  /tmp/pardes-snap/windowops/cwd New Del
+|  /tmp/pardes-snap/windowops/cwd New New
 |  ls
 |  w.txt
 |