refactor if without not

Author: archmoj

src/components/legend/draw.js

@@ -30,12 +30,12 @@ module.exports = function draw(gd, container) {
     var layer;
 
     // Check whether this is the main legend (ie. called without any container)
-    if(!container) {
-        container = fullLayout.legend || {};
-        layer = fullLayout._infolayer;
-    } else {
+    if(container) {
         layer = container.layer;
         clipId += '-hover';
+    } else {
+        container = fullLayout.legend || {};
+        layer = fullLayout._infolayer;
     }
 
     var inHover = !!container._inHover;