Fix migration to select2 4.0.5

htdocs/includes/jquery/plugins/select2/dist/js/compat/containerCss.js

@@ -0,0 +1,56 @@
+define([
+  'jquery',
+  './utils'
+], function ($, CompatUtils) {
+  // No-op CSS adapter that discards all classes by default
+  function _containerAdapter (clazz) {
+    return null;
+  }
+
+  function ContainerCSS () { }
+
+  ContainerCSS.prototype.render = function (decorated) {
+    var $container = decorated.call(this);
+
+    var containerCssClass = this.options.get('containerCssClass') || '';
+
+    if ($.isFunction(containerCssClass)) {
+      containerCssClass = containerCssClass(this.$element);
+    }
+
+    var containerCssAdapter = this.options.get('adaptContainerCssClass');
+    containerCssAdapter = containerCssAdapter || _containerAdapter;
+
+    if (containerCssClass.indexOf(':all:') !== -1) {
+      containerCssClass = containerCssClass.replace(':all:', '');
+
+      var _cssAdapter = containerCssAdapter;
+
+      containerCssAdapter = function (clazz) {
+        var adapted = _cssAdapter(clazz);
+
+        if (adapted != null) {
+          // Append the old one along with the adapted one
+          return adapted + ' ' + clazz;
+        }
+
+        return clazz;
+      };
+    }
+
+    var containerCss = this.options.get('containerCss') || {};
+
+    if ($.isFunction(containerCss)) {
+      containerCss = containerCss(this.$element);
+    }
+
+    CompatUtils.syncCssClasses($container, this.$element, containerCssAdapter);
+
+    $container.css(containerCss);
+    $container.addClass(containerCssClass);
+
+    return $container;
+  };
+
+  return ContainerCSS;
+});