feat(editor): add widget in viewUpdated slot (#10452)

blocksuite/affine/block-surface-ref/src/surface-ref-block.ts

@@ -423,8 +423,9 @@ export class SurfaceRefBlockComponent extends BlockComponent<SurfaceRefBlockMode
 
       override mounted() {
         const disposable = this.std.view.viewUpdated.on(payload => {
+          if (payload.type !== 'block') return;
           if (
-            payload.type === 'add' &&
+            payload.method === 'add' &&
             matchModels(payload.view.model, [RootBlockModel])
           ) {
             disposable.dispose();

blocksuite/affine/widget-drag-handle/src/helpers/preview-helper.ts

@@ -145,6 +145,8 @@ export class PreviewHelper {
           }
 
           this.std.view.viewUpdated.on(payload => {
+            if (payload.type !== 'block') return;
+
             if (payload.view.model.flavour === 'affine:page') {
               const gfx = this.std.get(GfxControllerIdentifier);
 

blocksuite/affine/widget-drag-handle/src/watchers/drag-event-watcher.ts

@@ -1625,10 +1625,13 @@ export class DragEventWatcher {
 
     disposables.add(
       std.view.viewUpdated.on(payload => {
-        if (payload.type === 'add') {
+        if (payload.type !== 'block') {
+          return;
+        }
+        if (payload.method === 'add') {
           this._makeDropTarget(payload.view);
         } else if (
-          payload.type === 'delete' &&
+          payload.method === 'delete' &&
           this.dropTargetCleanUps.has(payload.id)
         ) {
           this.dropTargetCleanUps.get(payload.id)!.forEach(clean => clean());