chore: merge blocksuite source code (#9213)

blocksuite/framework/store/src/reactive/boxed.ts

@@ -0,0 +1,55 @@
+import * as Y from 'yjs';
+
+import { NATIVE_UNIQ_IDENTIFIER } from '../consts.js';
+
+export type OnBoxedChange = (data: unknown) => void;
+
+export class Boxed<T = unknown> {
+  static from = <T>(map: Y.Map<T>, onChange?: OnBoxedChange): Boxed<T> => {
+    return new Boxed<T>(map.get('value') as T, onChange);
+  };
+
+  static is = (value: unknown): value is Boxed => {
+    return (
+      value instanceof Y.Map && value.get('type') === NATIVE_UNIQ_IDENTIFIER
+    );
+  };
+
+  private readonly _map: Y.Map<T>;
+
+  private _onChange?: OnBoxedChange;
+
+  getValue = () => {
+    return this._map.get('value');
+  };
+
+  setValue = (value: T) => {
+    return this._map.set('value', value);
+  };
+
+  get yMap() {
+    return this._map;
+  }
+
+  constructor(value: T, onChange?: OnBoxedChange) {
+    this._onChange = onChange;
+    if (
+      value instanceof Y.Map &&
+      value.doc &&
+      value.get('type') === NATIVE_UNIQ_IDENTIFIER
+    ) {
+      this._map = value;
+    } else {
+      this._map = new Y.Map();
+      this._map.set('type', NATIVE_UNIQ_IDENTIFIER as T);
+      this._map.set('value', value);
+    }
+    this._map.observeDeep(() => {
+      this._onChange?.(this.getValue());
+    });
+  }
+
+  bind(onChange: OnBoxedChange) {
+    this._onChange = onChange;
+  }
+}