Adds modal support for ckeditor_fixed_toolbar

ckeditor_fixed_toolbar-make_it_work_with_modal.patch

diff --git a/js/plugins/fixed_toolbar/plugin.js b/js/plugins/fixed_toolbar/plugin.js
index 4a0757c..fa51d2e 100644
--- a/js/plugins/fixed_toolbar/plugin.js
+++ b/js/plugins/fixed_toolbar/plugin.js
@@ -8,6 +8,16 @@ CKEDITOR.plugins.add('fixed_toolbar', {
       toolBar.style.position = 'sticky';
       // We use the same offset as Drupal uses for body to make up for Admin Toolbar.
       toolBar.style.top = document.body.style.paddingTop;
+
+      // Loop through the parents and see if we're in a modal.
+      var parents = e.editor.container.getParents();
+      for (var i = 0; i < parents.length; i++) {
+        // The field is part of a modal, so change it's offset top.
+        if (parents[i].hasClass('ui-dialog')) {
+          // Adjust this value according to your admin theme.
+          toolBar.style.top = '-20px';
+        }
+      }
     });
   },
 });