feat(editor): 组件树中支持多选拖动

packages/editor/src/layouts/sidebar/layer/use-drag.ts

@@ -144,7 +144,13 @@ export const useDrag = (services: Services | undefined) => {
         targetIndex += 1;
       }
 
-      services?.editorService.dragTo(node, targetParent, targetIndex);
+      const selectedNodes = services.editorService.get('nodes');
+
+      if (selectedNodes.find((n) => `${n.id}` === `${node.id}`)) {
+        services.editorService.dragTo(selectedNodes, targetParent, targetIndex);
+      } else {
+        services.editorService.dragTo([node], targetParent, targetIndex);
+      }
     }
 
     dragState.dragOverNodeId = '';

packages/editor/src/services/editor.ts

@@ -49,11 +49,23 @@ import {
   getPageFragmentList,
   getPageList,
   isFixed,
+  moveItemsInContainer,
   setChildrenLayout,
   setLayout,
 } from '@editor/utils/editor';
 import { beforePaste, getAddParent } from '@editor/utils/operator';
 
+export interface EditorEvents {
+  'root-change': [value: StoreState['root'], preValue?: StoreState['root']];
+  select: [node: MNode | null];
+  add: [nodes: MNode[]];
+  remove: [nodes: MNode[]];
+  update: [nodes: MNode[]];
+  'move-layer': [offset: number | LayerOffset];
+  'drag-to': [data: { targetIndex: number; configs: MNode | MNode[]; targetParent: MContainer }];
+  'history-change': [data: MPage | MPageFragment];
+}
+
 const canUsePluginMethods = {
   async: [
     'getLayout',
@@ -139,7 +151,7 @@ class Editor extends BaseService {
         this.state.stageLoading = false;
       }
 
-      this.emit('root-change', value, preValue);
+      this.emit('root-change', value as StoreState['root'], preValue as StoreState['root']);
     }
   }
 
@@ -877,34 +889,46 @@ class Editor extends BaseService {
     }
   }
 
-  public async dragTo(config: MNode, targetParent: MContainer, targetIndex: number) {
+  public async dragTo(config: MNode | MNode[], targetParent: MContainer, targetIndex: number) {
     if (!targetParent || !Array.isArray(targetParent.items)) return;
 
+    const configs = Array.isArray(config) ? config : [config];
+
+    const sourceIndicesInTargetParent: number[] = [];
+    const sourceOutTargetParent: MNode[] = [];
+
+    const newLayout = await this.getLayout(targetParent);
+
+    for (const config of configs) {
       const { parent, node: curNode } = this.getNodeInfo(config.id, false);
       if (!parent || !curNode) throw new Error('找不要删除的节点');
 
       const index = getNodeIndex(curNode.id, parent);
 
-    if (typeof index !== 'number' || index === -1) throw new Error('找不要删除的节点');
-
       if (parent.id === targetParent.id) {
-      if (index === targetIndex) return;
+        if (typeof index !== 'number' || index === -1) {
-
+          return;
-      if (index < targetIndex) {
-        targetIndex -= 1;
         }
-    }
+        sourceIndicesInTargetParent.push(index);
-
+      } else {
         const layout = await this.getLayout(parent);
-    const newLayout = await this.getLayout(targetParent);
 
         if (newLayout !== layout) {
           setLayout(config, newLayout);
         }
 
         parent.items?.splice(index, 1);
+        sourceOutTargetParent.push(config);
+        this.addModifiedNodeId(parent.id);
+      }
+    }
 
-    targetParent.items?.splice(targetIndex, 0, config);
+    moveItemsInContainer(sourceIndicesInTargetParent, targetParent, targetIndex);
+
+    sourceOutTargetParent.forEach((config, index) => {
+      targetParent.items?.splice(targetIndex + index, 0, config);
+      this.addModifiedNodeId(config.id);
+    });
 
     const page = this.get('page');
     const root = this.get('root');
@@ -918,12 +942,9 @@ class Editor extends BaseService {
       });
     }
 
-    this.addModifiedNodeId(config.id);
-    this.addModifiedNodeId(parent.id);
-
     this.pushHistoryState();
 
-    this.emit('drag-to', { index, targetIndex, config, parent, targetParent });
+    this.emit('drag-to', { targetIndex, configs, targetParent });
   }
 
   /**
@@ -1019,6 +1040,24 @@ class Editor extends BaseService {
     super.usePlugin(options);
   }
 
+  public on<Name extends keyof EditorEvents, Param extends EditorEvents[Name]>(
+    eventName: Name,
+    listener: (...args: Param) => void | Promise<void>,
+  ) {
+    return super.on(eventName, listener as any);
+  }
+
+  public once<Name extends keyof EditorEvents, Param extends EditorEvents[Name]>(
+    eventName: Name,
+    listener: (...args: Param) => void | Promise<void>,
+  ) {
+    return super.once(eventName, listener as any);
+  }
+
+  public emit<Name extends keyof EditorEvents, Param extends EditorEvents[Name]>(eventName: Name, ...args: Param) {
+    return super.emit(eventName, ...args);
+  }
+
   private addModifiedNodeId(id: Id) {
     if (!this.isHistoryStateChange) {
       this.get('modifiedNodeIds').set(id, id);

packages/editor/src/utils/editor.ts

@@ -292,3 +292,22 @@ export const traverseNode = <T extends NodeItem = NodeItem>(
     });
   }
 };
+
+export const moveItemsInContainer = (sourceIndices: number[], parent: MContainer, targetIndex: number) => {
+  sourceIndices.sort((a, b) => a - b);
+  for (let i = sourceIndices.length - 1; i >= 0; i--) {
+    const sourceIndex = sourceIndices[i];
+    if (sourceIndex === targetIndex) {
+      continue;
+    }
+    const [item] = parent.items.splice(sourceIndex, 1);
+    parent.items.splice(sourceIndex < targetIndex ? targetIndex - 1 : targetIndex, 0, item);
+
+    // 更新后续源索引（因为数组已经改变）
+    for (let j = i - 1; j >= 0; j--) {
+      if (sourceIndices[j] >= targetIndex) {
+        sourceIndices[j] += 1;
+      }
+    }
+  }
+};

packages/editor/tests/unit/utils/editor.spec.ts

@@ -136,3 +136,55 @@ describe('getRelativeStyle', () => {
     expect(style?.color).toBe('red');
   });
 });
+
+describe('moveItemsInContainer', () => {
+  test('向下移动', () => {
+    const container = { id: 1, type: NodeType.CONTAINER, items: [{ id: 2 }, { id: 3 }, { id: 4 }] };
+    editor.moveItemsInContainer([0], container, 0);
+    expect(container.items[0].id).toBe(2);
+    editor.moveItemsInContainer([0], container, 1);
+    expect(container.items[0].id).toBe(2);
+    editor.moveItemsInContainer([0], container, 2);
+    expect(container.items[0].id).toBe(3);
+    expect(container.items[1].id).toBe(2);
+    expect(container.items[2].id).toBe(4);
+  });
+  test('向下移动到最后', () => {
+    const container = { id: 1, type: NodeType.CONTAINER, items: [{ id: 2 }, { id: 3 }, { id: 4 }] };
+    editor.moveItemsInContainer([0], container, 3);
+    expect(container.items[0].id).toBe(3);
+    expect(container.items[1].id).toBe(4);
+    expect(container.items[2].id).toBe(2);
+  });
+
+  test('向上移动', () => {
+    const container = { id: 1, type: NodeType.CONTAINER, items: [{ id: 2 }, { id: 3 }, { id: 4 }] };
+    editor.moveItemsInContainer([2], container, 3);
+    expect(container.items[2].id).toBe(4);
+    editor.moveItemsInContainer([2], container, 2);
+    expect(container.items[2].id).toBe(4);
+    editor.moveItemsInContainer([2], container, 1);
+    expect(container.items[0].id).toBe(2);
+    expect(container.items[1].id).toBe(4);
+    expect(container.items[2].id).toBe(3);
+  });
+  test('向上移动到最后', () => {
+    const container = { id: 1, type: NodeType.CONTAINER, items: [{ id: 2 }, { id: 3 }, { id: 4 }] };
+    editor.moveItemsInContainer([2], container, 0);
+    expect(container.items[0].id).toBe(4);
+    expect(container.items[1].id).toBe(2);
+    expect(container.items[2].id).toBe(3);
+  });
+
+  test('移动多个', () => {
+    const container = {
+      id: 1,
+      type: NodeType.CONTAINER,
+      items: [{ id: 2 }, { id: 3 }, { id: 4 }, { id: 5 }, { id: 6 }, { id: 7 }],
+    };
+    editor.moveItemsInContainer([0, 5], container, 0);
+    expect(container.items[0].id).toBe(2);
+    expect(container.items[1].id).toBe(7);
+    expect(container.items[2].id).toBe(3);
+  });
+});