fix regression in env popup

node_modules/ace_tree/lib/ace_tree/edit.js

@@ -258,6 +258,7 @@ var EditableTree = function(tree) {
         
         var ace = this.ace;
         this.ace = null;
+        this.$lastAce = ace;
         ace.renderer.freeze();
         setTimeout(function() {
             // doing this after timeout to allow rename event focus something else
@@ -267,6 +268,7 @@ var EditableTree = function(tree) {
                 ace.wrapper.parentNode.removeChild(ace.wrapper);
             if (wasFocused)
                 this.tree.focus();
+            this.$lastAce = null;
         }.bind(this));
     };
     
@@ -386,6 +388,7 @@ var EditableTree = function(tree) {
             
         var val = this.ace.getValue();
         
+        this._destroyEditor();
         
         if (!cancel && this.origVal !== val) {
             this.tree._emit("rename", {
@@ -396,8 +399,6 @@ var EditableTree = function(tree) {
             });
             this.tree.provider._signal("change");
         }
-        
-        this._destroyEditor();
     };
 
 }).call(EditableTree.prototype);

plugins/c9.ide.tree/tree.js

@@ -520,7 +520,7 @@ define(function(require, exports, module) {
                 }
                 
                 if (dirname(newpath) != dirname(path)) {
-                    tree.edit.ace.blur(); // TODO this shouldn't be needed when apf focus works
+                    tree.edit.$lastAce && tree.edit.$lastAce.blur(); // TODO this shouldn't be needed when apf focus works
                     question(
                         "Confirm move to a new folder",
                         "move '" + e.oldValue + "' to \n" +