fix: drawer

Author: igauch

.changeset/stale-dots-speak.md

@@ -0,0 +1,5 @@
+---
+'@alauda/ui': patch
+---
+
+- fix: no default config for using component mode

src/drawer/drawer.service.ts

@@ -46,10 +46,12 @@ export class DrawerService<
   }
 
   updateOptions(options: DrawerOptions<T, C>): void {
-    this.options = {
-      ...(DEFAULT_OPTIONS as DrawerOptions<T, C>),
-      ...options,
-    };
+    this.options = merge(
+      {
+        ...DEFAULT_OPTIONS,
+      },
+      options,
+    );
   }
 
   private createOverlay() {
@@ -135,3 +137,13 @@ export class DrawerService<
     this.dispose();
   }
 }
+
+function merge(object: Record<string, any>, source: Record<string, any>) {
+  Object.keys(source).forEach(key => {
+    if (source[key] === undefined) {
+      return;
+    }
+    object[key] = source[key];
+  });
+  return object;
+}