- code cleanup

program/js/app.js

@@ -204,12 +204,10 @@ function rcube_webmail()
             'open', 'mark', 'edit', 'viewsource', 'download', 'print', 'load-attachment', 'load-headers', true);
 
           if (this.env.next_uid) {
-            this.enable_command('nextmessage', true);
-            this.enable_command('lastmessage', true);
+            this.enable_command('nextmessage', 'lastmessage', true);
           }
           if (this.env.prev_uid) {
-            this.enable_command('previousmessage', true);
-            this.enable_command('firstmessage', true);
+            this.enable_command('previousmessage', 'firstmessage', true);
           }
 
           if (this.env.blockedobjects) {
@@ -326,8 +324,7 @@ function rcube_webmail()
         else if (this.env.action=='folders')
           this.enable_command('subscribe', 'unsubscribe', 'create-folder', 'rename-folder', 'delete-folder', 'enable-threading', 'disable-threading', true);
 
-        if (this.gui_objects.identitieslist)
-          {
+        if (this.gui_objects.identitieslist) {
           this.identity_list = new rcube_list_widget(this.gui_objects.identitieslist, {multiselect:false, draggable:false, keyboard:false});
           this.identity_list.addEventListener('select', function(o){ p.identity_select(o); });
           this.identity_list.init();
@@ -336,8 +333,7 @@ function rcube_webmail()
           if (this.env.iid)
             this.identity_list.highlight_row(this.env.iid);
         }
-        else if (this.gui_objects.sectionslist)
-          {
+        else if (this.gui_objects.sectionslist) {
           this.sections_list = new rcube_list_widget(this.gui_objects.sectionslist, {multiselect:false, draggable:false, keyboard:false});
           this.sections_list.addEventListener('select', function(o){ p.section_select(o); });
           this.sections_list.init();
@@ -4310,10 +4306,8 @@ function rcube_webmail()
   // enable/disable buttons for page shifting
   this.set_page_buttons = function()
   {
-    this.enable_command('nextpage', (this.env.pagecount > this.env.current_page));
-    this.enable_command('lastpage', (this.env.pagecount > this.env.current_page));
-    this.enable_command('previouspage', (this.env.current_page > 1));
-    this.enable_command('firstpage', (this.env.current_page > 1));
+    this.enable_command('nextpage', 'lastpage', (this.env.pagecount > this.env.current_page));
+    this.enable_command('previouspage', 'firstpage', (this.env.current_page > 1));
   };
 
   // set event handlers on registered buttons