Merge branch 'menu_buttons' of https://github.com/johndoh/roundcubemail into johndoh-menu_buttons

program/js/app.js

@@ -47,7 +47,7 @@ function rcube_webmail()
   this.group2expand = {};
   this.http_request_jobs = {};
   this.menu_stack = [];
-  this.menu_buttons = [];
+  this.menu_buttons = {};
   this.entity_selectors = [];
   this.image_style = {};
 
@@ -125,8 +125,11 @@ function rcube_webmail()
   // register a button with popup menu, to set its state according to the state of all commands in the menu
   this.register_menu_button = function(button, menu_id)
   {
+    if (this.menu_buttons[menu_id]) {
+      this.menu_buttons[menu_id][0].push(button);
+    }
+    else {
       var commands = [];
-
       $('#' + menu_id).find('a').each(function() {
         var command, link = $(this), onclick = link.attr('onclick');
 
@@ -139,7 +142,8 @@ function rcube_webmail()
       });
 
       if (commands.length)
-      this.menu_buttons.push([button, commands]);
+        this.menu_buttons[menu_id] = [[button], commands];
+    }
 
     this.set_menu_buttons();
   };