(page_content.dialog.php // emits id='dialog_content'), and only ever calls .summernote('code', ...) on it -- // it never runs .summernote({...}), so the editor comes up with default options: // no Gallery button and no upload callback. summernote.images.php supplies both and // is already parameterised by $fieldName, so point it at the dialog's textarea. $fieldName = 'dialog_content'; $windowHeight = 450; include "summernote.images.php"; ?>