key->prefix for listbar. misc.

lib/widget.js

@@ -5887,6 +5887,10 @@ Listbar.prototype.appendItem = function(item, callback) {
     };
   }
 
+  if (cmd.keys && cmd.keys[0]) {
+    cmd.prefix = cmd.keys[0];
+  }
+
   title = (cmd.prefix != null ? '{light-black-fg}'
     + cmd.prefix
     + '{/light-black-fg}'
@@ -5941,7 +5945,16 @@ Listbar.prototype.appendItem = function(item, callback) {
   if (cmd.callback) {
     //el.on('press', cmd.callback);
     if (cmd.keys) {
-      this.screen.key(cmd.keys, cmd.callback);
+      this.screen.key(cmd.keys, function(ch, key) {
+        self.emit('action', el, self.selected);
+        self.emit('select', el, self.selected);
+        //el.press();
+        if (el._.cmd.callback) {
+          el._.cmd.callback();
+        }
+        self.select(el);
+        self.screen.render();
+      });
     }
   }
 

test/widget-listbar.js

@@ -46,9 +46,12 @@ var bar = blessed.listbar({
     }
   },
   commands: {
-    'one': function() {
+    'one': {
+      keys: ['a'],
+      callback: function() {
         box.setContent('Pressed one.');
         screen.render();
+      }
     },
     'two': function() {
       box.setContent('Pressed two.');