1 files changed, 10 insertions, 17 deletions

diff --git a/core/misc/tabbingmanager.js b/core/misc/tabbingmanager.js
index c912c92684e8..5db64002af38 100644
--- a/core/misc/tabbingmanager.js
+++ b/core/misc/tabbingmanager.js
@@ -13,13 +13,9 @@
   function TabbingContext(options) {
     $.extend(this, {
       level: null,
-
       $tabbableElements: $(),
-
       $disabledElements: $(),
-
       released: false,
-
       active: false
     }, options);
   }
@@ -27,27 +23,24 @@
   $.extend(TabbingManager.prototype, {
     constrain: function constrain(elements) {
       var il = this.stack.length;
+
       for (var i = 0; i < il; i++) {
         this.stack[i].deactivate();
       }
 
       var $elements = $(elements).find(':tabbable').addBack(':tabbable');
-
       var tabbingContext = new TabbingContext({
         level: this.stack.length,
         $tabbableElements: $elements
       });
-
       this.stack.push(tabbingContext);
-
       tabbingContext.activate();
-
       $(document).trigger('drupalTabbingConstrained', tabbingContext);
-
       return tabbingContext;
     },
     release: function release() {
       var toActivate = this.stack.length - 1;
+
       while (toActivate >= 0 && this.stack[toActivate].released) {
         toActivate--;
       }
@@ -61,29 +54,28 @@
     activate: function activate(tabbingContext) {
       var $set = tabbingContext.$tabbableElements;
       var level = tabbingContext.level;
-
       var $disabledSet = $(':tabbable').not($set);
-
       tabbingContext.$disabledElements = $disabledSet;
-
       var il = $disabledSet.length;
+
       for (var i = 0; i < il; i++) {
         this.recordTabindex($disabledSet.eq(i), level);
       }
 
       $disabledSet.prop('tabindex', -1).prop('autofocus', false);
-
       var $hasFocus = $set.filter('[autofocus]').eq(-1);
 
       if ($hasFocus.length === 0) {
         $hasFocus = $set.eq(0);
       }
+
       $hasFocus.trigger('focus');
     },
     deactivate: function deactivate(tabbingContext) {
       var $set = tabbingContext.$disabledElements;
       var level = tabbingContext.level;
       var il = $set.length;
+
       for (var i = 0; i < il; i++) {
         this.restoreTabindex($set.eq(i), level);
       }
@@ -98,13 +90,16 @@
     },
     restoreTabindex: function restoreTabindex($el, level) {
       var tabInfo = $el.data('drupalOriginalTabIndices');
+
       if (tabInfo && tabInfo[level]) {
         var data = tabInfo[level];
+
         if (data.tabindex) {
           $el[0].setAttribute('tabindex', data.tabindex);
         } else {
             $el[0].removeAttribute('tabindex');
           }
+
         if (data.autofocus) {
           $el[0].setAttribute('autofocus', 'autofocus');
         }
@@ -113,23 +108,23 @@
           $el.removeData('drupalOriginalTabIndices');
         } else {
           var levelToDelete = level;
+
           while (tabInfo.hasOwnProperty(levelToDelete)) {
             delete tabInfo[levelToDelete];
             levelToDelete++;
           }
+
           $el.data('drupalOriginalTabIndices', tabInfo);
         }
       }
     }
   });
-
   $.extend(TabbingContext.prototype, {
     release: function release() {
       if (!this.released) {
         this.deactivate();
         this.released = true;
         Drupal.tabbingManager.release(this);
-
         $(document).trigger('drupalTabbingContextReleased', this);
       }
     },
@@ -137,7 +132,6 @@
       if (!this.active && !this.released) {
         this.active = true;
         Drupal.tabbingManager.activate(this);
-
         $(document).trigger('drupalTabbingContextActivated', this);
       }
     },
@@ -145,7 +139,6 @@
       if (this.active) {
         this.active = false;
         Drupal.tabbingManager.deactivate(this);
-
         $(document).trigger('drupalTabbingContextDeactivated', this);
       }
     }