void (@NotNull Project project, @NotNull PsiFile file, final @Nullable Editor editor, @NotNull PsiElement startElement, @NotNull PsiElement endElement) { final XmlAttribute attribute = PsiTreeUtil.getNonStrictParentOfType(startElement, XmlAttribute.class); if (attribute == null || attribute.getValue() != null) { return; } final XmlAttribute attributeWithValue = XmlElementFactory.getInstance(project).createAttribute(attribute.getName(), "", startElement); final PsiElement newAttribute = attribute.replace(attributeWithValue); if (editor != null && newAttribute instanceof XmlAttribute && newAttribute.isValid()) { final XmlAttributeValue valueElement = ((XmlAttribute)newAttribute).getValueElement(); if (valueElement != null) { editor.getCaretModel().moveToOffset(valueElement.getTextOffset()); if (!IntentionPreviewUtils.isIntentionPreviewActive()) { AutoPopupController.getInstance(newAttribute.getProject()).scheduleAutoPopup(editor); } } } }