Merge remote-tracking branch 'trigger/MC-1416' into MC-3308

Author: kieuphan2406

app/code/Magento/PageBuilder/view/adminhtml/web/css/source/_inline-wysiwyg.less

@@ -41,4 +41,7 @@
             visibility: visible !important;
         }
     }
+    &._right-aligned-toolbar ~ div.mce-tinymce-inline {
+        left: auto !important;
+    }
 }

app/code/Magento/PageBuilder/view/adminhtml/web/js/content-type/wysiwyg.js

@@ -58,9 +58,21 @@ export default class Wysiwyg {
             this.wysiwygAdapter.setup(mode);
         }
 
+        const $element = $("#" + elementId);
+        const maxToolbarWidth = 360;
+
         // prevent interactability with options when in editing mode
         this.onFocus(() => {
             $(`#${elementId}`).closest(".pagebuilder-content-type").addClass("pagebuilder-toolbar-active");
+
+            // If there isn't enough room for a left-aligned toolbar, right align it
+            if ($(window).width() < $element.offset().left + maxToolbarWidth) {
+                $element.addClass('_right-aligned-toolbar');
+            }
+            else {
+                $element.removeClass('_right-aligned-toolbar')
+            }
+
             events.trigger("stage:interactionStart");
         });