refactor: 提前处理 set assets, 增加 set assets 和 project.load 执行的鲁棒性

packages/designer/src/designer/designer.ts

@@ -459,7 +459,7 @@ export class Designer {
 
   private _lostComponentMetasMap = new Map<string, ComponentMeta>();
 
-  private buildComponentMetasMap(metas: ComponentMetadata[]) {
+  buildComponentMetasMap(metas: ComponentMetadata[]) {
     metas.forEach((data) => this.createComponentMeta(data));
   }
 

packages/engine/src/engine-core.ts

@@ -103,6 +103,19 @@ const getSelection = () => designer.currentDocument?.selection;
   engineConfig,
 };
 
+// 处理 editor.set('assets')，将组件元数据创建好
+plugins.register((ctx: ILowCodePluginContext) => {
+  return {
+    name: '___component_meta_parser___',
+    init() {
+      editor.onGot('assets', (assets: any) => {
+        const { components = [] } = assets;
+        designer.buildComponentMetasMap(components);
+      });
+    },
+  };
+});
+
 // 注册默认的 setters
 plugins.register((ctx: ILowCodePluginContext) => {
   return {