ONOS-4745: Fixed device rename Enter/Esc bug.

 - also, a couple of simplifications.

Change-Id: I11f878a5f4aa42668519cb26cc882aea296f4ac9

@@ -98,19 +98,27 @@
         }
     }
 
+    var textFieldDoesNotBlock = {
+        enter: 1,
+        esc: 1
+    };
+
     function textFieldInput() {
         var t = d3.event.target.tagName.toLowerCase();
         return t === 'input' || t === 'textarea';
     }
 
     function keyIn() {
-        if (textFieldInput()) {
-            return;
-        }
         var event = d3.event,
             keyCode = event.keyCode,
             key = whatKey(keyCode),
-            kh = keyHandler,
+            textBlockable = !textFieldDoesNotBlock[key];
+
+        if (textBlockable && textFieldInput()) {
+            return;
+        }
+
+        var kh = keyHandler,
             gk = kh.globalKeys[key],
             gcb = fs.isF(gk) || (fs.isA(gk) && fs.isF(gk[0])),
             dk = kh.dialogKeys[key],
@@ -120,7 +128,7 @@
             vcb = fs.isF(vk) || (fs.isA(vk) && fs.isF(vk[0])) || fs.isF(kh.viewFn),
             token = 'keyev';    // indicate this was a key-pressed event
 
-        d3.event.stopPropagation();
+        event.stopPropagation();
 
         if (enabled) {
             if (matchSeq(key)) return;
@@ -159,9 +167,9 @@
             // Masked keys are global key handlers that always return true.
             // That is, the view will never see the event for that key.
             maskedKeys: {
-                slash: true,
-                backSlash: true,
-                T: true
+                slash: 1,
+                backSlash: 1,
+                T: 1
             }
         });
     }