buffer by b command

src/background/key-queue.js

@@ -4,6 +4,7 @@ const DEFAULT_KEYMAP = {
   ':': [ actions.CMD_OPEN ],
   'o': [ actions.CMD_TABS_OPEN, false ],
   'O': [ actions.CMD_TABS_OPEN, true ],
+  'b': [ actions.CMD_BUFFER ],
   'k': [ actions.SCROLL_LINES, -1 ],
   'j': [ actions.SCROLL_LINES, 1 ],
   '<C-E>': [ actions.SCROLL_LINES, -1 ],

src/content/index.js

@@ -24,6 +24,9 @@ const invokeEvent = (action) => {
       vvConsole.showCommand('open ');
     }
     break;
+  case actions.CMD_BUFFER:
+    vvConsole.showCommand('buffer ');
+    break;
   case actions.SCROLL_LINES:
     scrolls.scrollLines(window, action[1]);
     break;

src/shared/actions.js

@@ -1,5 +1,6 @@
 export const CMD_OPEN = 'cmd.open';
 export const CMD_TABS_OPEN = 'cmd.tabs.open';
+export const CMD_BUFFER = 'cmd.buffer';
 export const TABS_CLOSE = 'tabs.close';
 export const TABS_REOPEN = 'tabs.reopen';
 export const TABS_PREV = 'tabs.prev';
@@ -32,6 +33,7 @@ const BACKGROUND_ACTION_SET = new Set([
 const CONTENT_ACTION_SET = new Set([
   CMD_OPEN,
   CMD_TABS_OPEN,
+  CMD_BUFFER,
   SCROLL_LINES,
   SCROLL_PAGES,
   SCROLL_TOP,