✨ Import text-editor code into the repository

frontend/text-editor/editor/commands/CommandMutations.js

@@ -0,0 +1,66 @@
+/**
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * Copyright (c) KALEIDOS INC
+ */
+
+/**
+ * Command mutations
+ */
+export class CommandMutations {
+  #added = new Set();
+  #removed = new Set();
+  #updated = new Set();
+
+  constructor(added, updated, removed) {
+    if (added && Array.isArray(added)) this.#added = new Set(added);
+    if (updated && Array.isArray(updated)) this.#updated = new Set(updated);
+    if (removed && Array.isArray(removed)) this.#removed = new Set(removed);
+  }
+
+  get added() {
+    return this.#added;
+  }
+
+  get removed() {
+    return this.#removed;
+  }
+
+  get updated() {
+    return this.#updated;
+  }
+
+  clear() {
+    this.#added.clear();
+    this.#removed.clear();
+    this.#updated.clear();
+  }
+
+  dispose() {
+    this.#added.clear();
+    this.#added = null;
+    this.#removed.clear();
+    this.#removed = null;
+    this.#updated.clear();
+    this.#updated = null;
+  }
+
+  add(node) {
+    this.#added.add(node);
+    return this;
+  }
+
+  remove(node) {
+    this.#removed.add(node);
+    return this;
+  }
+
+  update(node) {
+    this.#updated.add(node);
+    return this;
+  }
+}
+
+export default CommandMutations;