From 5134fac52f9daa99d2cd5e07ddb386d8e8534963 Mon Sep 17 00:00:00 2001
From: Coleman Watts <coleman@civicrm.org>
Date: Fri, 2 Mar 2018 09:42:40 -0500
Subject: [PATCH] CKEditor Advanced Options - Don't allow same option to be
 selected twice

---
 css/civicrm.css                           |  4 ++++
 js/wysiwyg/admin.ckeditor-configurator.js | 14 +++++++++++++-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/css/civicrm.css b/css/civicrm.css
index c459281324..6b2fdcd184 100644
--- a/css/civicrm.css
+++ b/css/civicrm.css
@@ -3124,6 +3124,10 @@ div.m ul#civicrm-menu,
 .crm-container .select2-container[class*=" fa-"]:before {
   display: none;
 }
+.crm-container .select2-results .select2-result.select2-disabled > .select2-result-label {
+  opacity: .6;
+  cursor: default;
+}
 
 /* Restore this property otherwise our css overrides it */
 .select2-search input {
diff --git a/js/wysiwyg/admin.ckeditor-configurator.js b/js/wysiwyg/admin.ckeditor-configurator.js
index 17ac199703..b7ff14825b 100644
--- a/js/wysiwyg/admin.ckeditor-configurator.js
+++ b/js/wysiwyg/admin.ckeditor-configurator.js
@@ -51,10 +51,22 @@
     }
   }
 
+  function getOptionList() {
+    var list = [];
+    _.forEach(options, function(option) {
+      var opt = _.cloneDeep(option);
+      if ($('[name="config_' + opt.id + '"]').length) {
+        opt.disabled = true;
+      }
+      list.push(opt);
+    });
+    return {results: list, text: 'id'};
+  }
+
   function addOption() {
     $('#crm-custom-config-options').append($(configRowTpl({})));
     $('div:last input.crm-config-option-name', '#crm-custom-config-options').crmSelect2({
-      data: {results: options, text: 'id'},
+      data: getOptionList,
       formatSelection: function(field) {
         return '<strong>' + field.id + '</strong> (' + field.type + ')';
       },
-- 
2.25.1