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

1 files changed, 45 insertions, 45 deletions

diff --git a/test/snapshots/scroll.golden b/test/snapshots/scroll.golden
index ba684c63..b77d4768 100644
--- a/test/snapshots/scroll.golden
+++ b/test/snapshots/scroll.golden
@@ -1,6 +1,6 @@
 == snap bottom grid=100x30 cursor=4,15
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/scroll/cwd New Del Filter        /tmp/pardes-snap/scroll/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte
 |  188                                               ls
 |  189                                               s.txt
 |  190
@@ -15,7 +15,7 @@
 |  199
 |  200
 |
-|  /tmp/pardes-snap/scroll/cwd New Del Filter
+|  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte
 |  ls
 |  s.txt
 |
@@ -30,8 +30,8 @@
 |
 |
 == snap wheel3 grid=100x30 cursor=4,15
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/scroll/cwd New Del Filter        /tmp/pardes-snap/scroll/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte
 |  185                                               ls
 |  186                                               s.txt
 |  187
@@ -46,7 +46,7 @@
 |  196
 |  197
 |  198
-|  /tmp/pardes-snap/scroll/cwd New Del Filter
+|  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte
 |  ls
 |  s.txt
 |
@@ -61,8 +61,8 @@
 |
 |
 == snap gutter-up grid=100x30 cursor=4,15
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/scroll/cwd New Del Filter        /tmp/pardes-snap/scroll/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte
 |  178                                               ls
 |  179                                               s.txt
 |  180
@@ -77,7 +77,7 @@
 |  189
 |  190
 |  191
-|  /tmp/pardes-snap/scroll/cwd New Del Filter
+|  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte
 |  ls
 |  s.txt
 |
@@ -92,8 +92,8 @@
 |
 |
 == snap gutter-down grid=100x30 cursor=4,15
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/scroll/cwd New Del Filter        /tmp/pardes-snap/scroll/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte
 |  180                                               ls
 |  181                                               s.txt
 |  182
@@ -108,7 +108,7 @@
 |  191
 |  192
 |  193
-|  /tmp/pardes-snap/scroll/cwd New Del Filter
+|  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte
 |  ls
 |  s.txt
 |
@@ -123,8 +123,8 @@
 |
 |
 == snap wheel-down grid=100x30 cursor=4,15
-|New Newcol Find Grep Help Tutor Dump NextColor Debug Kill
-|  /tmp/pardes-snap/scroll/cwd New Del Filter        /tmp/pardes-snap/scroll/cwd New Del Filter
+|New Newcol Joincol Find Grep Help Changelog Tutor Dump NextColor Debug Kill
+|  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte
 |  181                                               ls
 |  182                                               s.txt
 |  183
@@ -139,7 +139,7 @@
 |  192
 |  193
 |  194
-|  /tmp/pardes-snap/scroll/cwd New Del Filter
+|  /tmp/pardes-snap/scroll/cwd New Newtty Del Filte
 |  ls
 |  s.txt
 |
@@ -154,33 +154,33 @@
 |
 |
 == style wheel-down
-|0: 0-56 #949494,#121212, 57-99 d,#121212,
-|1: 0-1 #ffffff,#626262, 2-43 #949494,#121212, 44-49 d,#121212, 50-51 #ffffff,#262626, 52-93 #949494,#121212, 94-99 d,#121212,
-|2: 0-0 d,#121212, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|3: 0-0 d,#121212, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|4: 0-0 d,#121212, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|5: 0-0 d,#121212, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|6: 0-0 d,#121212, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|7: 0-0 d,#121212, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|8: 0-0 d,#121212, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|9: 0-0 d,#121212, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|10: 0-0 d,#121212, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|11: 0-0 d,#121212, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|12: 0-0 d,#121212, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|13: 0-0 d,#121212, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|14: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|15: 0-0 d,#121212, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|16: 0-1 #ffffff,#262626, 2-43 #949494,#121212, 44-49 d,#121212, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|17: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|18: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|19: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|20: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|21: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|22: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|23: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|24: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|25: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|26: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|27: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|28: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
-|29: 0-0 d,#444444, 1-1 d,#080808, 2-49 #bdbdbd,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-99 #bdbdbd,#080808,
+|0: 0-74 #949494,#121212, 75-99 d,#121212,
+|1: 0-1 #ffffff,#626262, 2-49 #949494,#121212, 50-51 #ffffff,#262626, 52-99 #949494,#121212,
+|2: 0-0 d,#121212, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-53 #bdbdbd,#080808, 54-99 d,#080808,
+|3: 0-0 d,#121212, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-51 d,#080808, 52-56 #bdbdbd,#080808, 57-99 d,#080808,
+|4: 0-0 d,#121212, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|5: 0-0 d,#121212, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|6: 0-0 d,#121212, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|7: 0-0 d,#121212, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|8: 0-0 d,#121212, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|9: 0-0 d,#121212, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|10: 0-0 d,#121212, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|11: 0-0 d,#121212, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|12: 0-0 d,#121212, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|13: 0-0 d,#121212, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|14: 0-0 d,#444444, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|15: 0-0 d,#121212, 1-1 d,#080808, 2-4 #bdbdbd,#080808, 5-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|16: 0-1 #ffffff,#262626, 2-49 #949494,#121212, 50-50 d,#444444, 51-99 d,#080808,
+|17: 0-0 d,#444444, 1-1 d,#080808, 2-3 #bdbdbd,#080808, 4-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|18: 0-0 d,#444444, 1-1 d,#080808, 2-6 #bdbdbd,#080808, 7-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|19: 0-0 d,#444444, 1-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|20: 0-0 d,#444444, 1-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|21: 0-0 d,#444444, 1-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|22: 0-0 d,#444444, 1-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|23: 0-0 d,#444444, 1-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|24: 0-0 d,#444444, 1-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|25: 0-0 d,#444444, 1-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|26: 0-0 d,#444444, 1-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|27: 0-0 d,#444444, 1-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|28: 0-0 d,#444444, 1-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,
+|29: 0-0 d,#444444, 1-49 d,#080808, 50-50 d,#444444, 51-99 d,#080808,