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static/js/preview-edit.js

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+/*
+ * Copyright (C) 2026 Mateusz Gruszczynski @linuxiarz.pl
+ * Source-Available Code / Dual-Licensed.
+ *
+ * Free for non-commercial and evaluation use under terms of BSL/GPLv3.
+ * Commercial or production use requires a valid paid license.
+ * See LICENSE file in repository root for details.
+ */
+
+const ACTIVE_PREVIEW_EDIT_SELECTOR = '.preview-editable[contenteditable="true"]';
+
+export function previewEditingHost(target) {
+  return target?.matches?.(ACTIVE_PREVIEW_EDIT_SELECTOR) ? target : null;
+}