[FIX] web_editor, website: missing wait of async parts in left panel

- updateUI is async, most of the time it is really important to wait for
  its async parts.

- method options are now async and should wait for async parts and user
  choices before resolving their returned deferred.

1 files changed, 4 insertions, 4 deletions

diff --git a/addons/web_editor/static/src/js/editor/snippets.options.js b/addons/web_editor/static/src/js/editor/snippets.options.js
index 48089a955b6..b8048cd8641 100644
--- a/addons/web_editor/static/src/js/editor/snippets.options.js
+++ b/addons/web_editor/static/src/js/editor/snippets.options.js
@@ -1957,8 +1957,8 @@ registry.sizing = SnippetOptionWidget.extend({
     /**
      * @override
      */
-    updateUI: function () {
-        this._super(...arguments);
+    updateUI: async function () {
+        await this._super(...arguments);
         const resizeValues = this._getSize();
         _.each(resizeValues, (value, key) => {
             this.$handles.filter('.' + key).toggleClass('readonly', !value);
@@ -2097,11 +2097,11 @@ registry.background = SnippetOptionWidget.extend({
      *
      * @see this.selectClass for parameters
      */
-    background: function (previewMode, widgetValue, params) {
+    background: async function (previewMode, widgetValue, params) {
         if (previewMode === 'reset') {
             // No background has been selected and we want to reset back to the
             // original custom image
-            this._setCustomBackground(this.__customImageSrc); // FIXME this is async...
+            await this._setCustomBackground(this.__customImageSrc);
             return;
         }