refactor: migrate elements clone from default-tool to extension (#11703)

### Changed
- Add `onRequestElementsClone` action to allow extension to define how to clone gfx elements

blocksuite/framework/std/src/gfx/interactivity/extension/base.ts

@@ -5,7 +5,9 @@ import { Extension } from '@blocksuite/store';
 import type { PointerEventState } from '../../../event/index.js';
 import type { GfxController } from '../../controller.js';
 import { GfxControllerIdentifier } from '../../identifiers.js';
+import type { GfxModel } from '../../model/model.js';
 import type { SupportedEvents } from '../event.js';
+import type { ExtensionElementsCloneContext } from '../types/clone.js';
 import type {
   DragExtensionInitializeContext,
   ExtensionDragEndContext,
@@ -105,11 +107,22 @@ type ActionContextMap = {
       clear?: () => void;
     };
   };
+  elementsClone: {
+    context: ExtensionElementsCloneContext;
+    returnType: Promise<
+      | {
+          elements: GfxModel[];
+        }
+      | undefined
+    >;
+  };
 };
 
 export class InteractivityActionAPI {
   private readonly _handlers: Partial<{
-    dragInitialize: Parameters<InteractivityActionAPI['onDragInitialize']>[0];
+    [K in keyof ActionContextMap]: (
+      ctx: ActionContextMap[K]['context']
+    ) => ActionContextMap[K]['returnType'];
   }> = {};
 
   onDragInitialize(
@@ -124,6 +137,18 @@ export class InteractivityActionAPI {
     };
   }
 
+  onRequestElementsClone(
+    handler: (
+      ctx: ActionContextMap['elementsClone']['context']
+    ) => ActionContextMap['elementsClone']['returnType']
+  ) {
+    this._handlers['elementsClone'] = handler;
+
+    return () => {
+      return delete this._handlers['elementsClone'];
+    };
+  }
+
   emit<K extends keyof ActionContextMap>(
     event: K,
     context: ActionContextMap[K]['context']

blocksuite/framework/std/src/gfx/interactivity/manager.ts

@@ -12,6 +12,7 @@ import {
   InteractivityExtensionIdentifier,
 } from './extension/base.js';
 import { GfxViewEventManager } from './gfx-view-event-handler.js';
+import type { RequestElementsCloneContext } from './types/clone.js';
 import type {
   DragExtensionInitializeContext,
   DragInitializationOption,
@@ -288,4 +289,21 @@ export class InteractivityManager extends GfxExtension {
     listenEvent();
     dragStart();
   }
+
+  requestElementsClone(options: RequestElementsCloneContext) {
+    const extensions = this.interactExtensions;
+
+    for (let ext of extensions.values()) {
+      const cloneData = (ext.action as InteractivityActionAPI).emit(
+        'elementsClone',
+        options
+      );
+
+      if (cloneData) {
+        return cloneData;
+      }
+    }
+
+    return Promise.resolve(undefined);
+  }
 }

blocksuite/framework/std/src/gfx/interactivity/types/clone.ts

@@ -0,0 +1,7 @@
+import type { GfxModel } from '../../model/model';
+
+export type ExtensionElementsCloneContext = {
+  elements: GfxModel[];
+};
+
+export type RequestElementsCloneContext = ExtensionElementsCloneContext;