pass-through support for @mighty-scroll-fallback-mode

fixes #6

Author: noscript

README.md

@@ -63,7 +63,7 @@ $ tmux source ~/.tmux.conf
 |`@mighty-scroll-by-line`|`'man less pager fzf'`|List|Space separated list of processes that will be scrolled  by line.|
 |`@mighty-scroll-by-page`|`'irssi vi'`|List|Space separated list of processes that will be scrolled by page.|
 |`@mighty-scroll-pass-through`|`'vim nvim'`|List|Space separated list of processes that will receive mouse scroll events as is.|
-|`@mighty-scroll-fallback-mode`|`'history'`|`'history'`, `'by-line'`, `'by-page'`|Scroll mode when in alternate screen but the process didn't match `by-line` and `by-page` lists from above.|
+|`@mighty-scroll-fallback-mode`|`'history'`|`'history'`, `'by-line'`, `'by-page'`, `'pass-through'`|Scroll mode when in alternate screen but the process didn't match the lists from above.|
 |`@mighty-scroll-show-indicator`|`off`|`on`, `off`|If enabled, shows the position indicator in the top right with current position and the number of lines in the history.|
 
 Scrolling modes:

tmux.conf

@@ -9,8 +9,12 @@ bind-key -T root WheelUpPane {
       if-shell -t "{mouse}" "$PSCHECK #{pane_pid} $MIGHTY_SCROLL_BY_PAGE || ( [ '$MIGHTY_SCROLL_FALLBACK_MODE' = 'by-page' ] && #{?alternate_on,true,false} )" {
         send-keys -t "{mouse}" PageUp
       } {
-        mighty_scroll_enter_copy_mode
-        mighty_scroll_with_interval -X scroll-up
+        if-shell -t "{mouse}" "[ '$MIGHTY_SCROLL_FALLBACK_MODE' = 'pass-through' ] && #{?alternate_on,true,false}" {
+          send-keys -t "{mouse}" -M
+        } {
+          mighty_scroll_enter_copy_mode
+          mighty_scroll_with_interval -X scroll-up
+        }
       }
     }
   }
@@ -26,6 +30,10 @@ bind-key -T root WheelDownPane {
     } {
       if-shell -t "{mouse}" "$PSCHECK #{pane_pid} $MIGHTY_SCROLL_BY_PAGE || ( [ '$MIGHTY_SCROLL_FALLBACK_MODE' = 'by-page' ] && #{?alternate_on,true,false} )" {
         send-keys -t "{mouse}" PageDown
+      } {
+        if-shell -t "{mouse}" "[ '$MIGHTY_SCROLL_FALLBACK_MODE' = 'pass-through' ] && #{?alternate_on,true,false}" {
+          send-keys -t "{mouse}" -M
+        }
       }
     }
   }