Focus whole entry name when renaming directories.

Under current implementation, extension part of entry name (after the last '.') is not focused even when users rename directories.
For directories, whole entry name should always be focused.

BUG=371676
TEST=manually tested

Review URL: https://codereview.chromium.org/279753002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@269559 0039d316-1c4b-4281-b951-d872f2087c98

ui/file_manager/file_manager/foreground/js/file_manager.js

@@ -2435,22 +2435,24 @@ var BOTTOM_MARGIN_FOR_PREVIEW_PANEL_PX = 52;
       return;
     var label = item.querySelector('.filename-label');
     var input = this.renameInput_;
+    var currentEntry = this.currentList_.dataModel.item(item.listIndex);
 
     input.value = label.textContent;
     item.setAttribute('renaming', '');
     label.parentNode.appendChild(input);
     input.focus();
+
     var selectionEnd = input.value.lastIndexOf('.');
-    if (selectionEnd == -1) {
-      input.select();
-    } else {
+    if (currentEntry.isFile && selectionEnd !== -1) {
       input.selectionStart = 0;
       input.selectionEnd = selectionEnd;
+    } else {
+      input.select();
     }
 
     // This has to be set late in the process so we don't handle spurious
     // blur events.
-    input.currentEntry = this.currentList_.dataModel.item(item.listIndex);
+    input.currentEntry = currentEntry;
     this.table_.startBatchUpdates();
     this.grid_.startBatchUpdates();
   };