From ec02e939a416b42fe9fc68db4803431ecfdbf94f Mon Sep 17 00:00:00 2001
From: xiamidaxia <xiamidaxia@icloud.com>
Date: Tue, 13 May 2025 16:47:22 +0800
Subject: [PATCH] feat(fixed-layout): add simple-split node

---
 .../document/src/typings/flow.ts              |  1 +
 .../fixed-layout-core/src/activities/index.ts |  1 +
 .../src/activities/simple-split.ts            | 50 +++++++++++++++++++
 .../fixed-layout-core/src/flow-registers.ts   |  2 +
 4 files changed, 54 insertions(+)
 create mode 100644 packages/canvas-engine/fixed-layout-core/src/activities/simple-split.ts

diff --git a/packages/canvas-engine/document/src/typings/flow.ts b/packages/canvas-engine/document/src/typings/flow.ts
index ecbc736d..4ff4c8c7 100644
--- a/packages/canvas-engine/document/src/typings/flow.ts
+++ b/packages/canvas-engine/document/src/typings/flow.ts
@@ -34,6 +34,7 @@ export enum FlowNodeBaseType {
 }
 
 export enum FlowNodeSplitType {
+  SIMPLE_SPLIT = 'simpleSplit', // 无 BlockOrderIcon
   DYNAMIC_SPLIT = 'dynamicSplit', // 动态分支
   STATIC_SPLIT = 'staticSplit', // 静态分支
 }
diff --git a/packages/canvas-engine/fixed-layout-core/src/activities/index.ts b/packages/canvas-engine/fixed-layout-core/src/activities/index.ts
index 9f42fc87..f2ba0bcf 100644
--- a/packages/canvas-engine/fixed-layout-core/src/activities/index.ts
+++ b/packages/canvas-engine/fixed-layout-core/src/activities/index.ts
@@ -10,3 +10,4 @@ export * from './loop';
 export * from './root';
 export * from './empty';
 export * from './end';
+export * from './simple-split';
diff --git a/packages/canvas-engine/fixed-layout-core/src/activities/simple-split.ts b/packages/canvas-engine/fixed-layout-core/src/activities/simple-split.ts
new file mode 100644
index 00000000..4f2a342e
--- /dev/null
+++ b/packages/canvas-engine/fixed-layout-core/src/activities/simple-split.ts
@@ -0,0 +1,50 @@
+import {
+  type FlowNodeRegistry,
+  FlowNodeSplitType,
+  FlowNodeBaseType,
+  FlowNodeJSON,
+  FlowNodeEntity,
+} from '@flowgram.ai/document';
+
+/**
+ * 可以动态添加分支的分支节点, 无 BlockOrderIcon 节点
+ * simpleSplit:  (最原始的 id)
+ *  blockIcon
+ *  inlineBlocks
+ *    block1
+ *    block2
+ */
+export const SimpleSplitRegistry: FlowNodeRegistry = {
+  type: FlowNodeSplitType.SIMPLE_SPLIT,
+  extend: FlowNodeSplitType.DYNAMIC_SPLIT,
+  onBlockChildCreate(
+    originParent: FlowNodeEntity,
+    blockData: FlowNodeJSON,
+    addedNodes: FlowNodeEntity[] = [] // 新创建的节点都要存在这里
+  ) {
+    const { document } = originParent;
+    const parent = document.getNode(`$inlineBlocks$${originParent.id}`);
+    // 块节点会生成一个空的 Block 节点用来切割 Block
+    const proxyBlock = document.addNode({
+      id: `$block$${blockData.id}`,
+      type: FlowNodeBaseType.BLOCK,
+      originParent,
+      parent,
+    });
+    const realBlock = document.addNode(
+      {
+        ...blockData,
+        type: blockData.type || FlowNodeBaseType.BLOCK,
+        parent: proxyBlock,
+      },
+      addedNodes
+    );
+    addedNodes.push(proxyBlock, realBlock);
+    return proxyBlock;
+  },
+  // addChild(node, json, options = {}) {
+  //   const { index } = options;
+  //   const document = node.document;
+  //   return document.addBlock(node, json, undefined, undefined, index);
+  // }
+};
diff --git a/packages/canvas-engine/fixed-layout-core/src/flow-registers.ts b/packages/canvas-engine/fixed-layout-core/src/flow-registers.ts
index 470c2cfe..f3fed376 100644
--- a/packages/canvas-engine/fixed-layout-core/src/flow-registers.ts
+++ b/packages/canvas-engine/fixed-layout-core/src/flow-registers.ts
@@ -31,6 +31,7 @@ import {
   StartRegistry,
   StaticSplitRegistry,
   TryCatchRegistry,
+  SimpleSplitRegistry,
 } from './activities';
 
 @injectable()
@@ -50,6 +51,7 @@ export class FlowRegisters
       StartRegistry, // 开始节点
       DynamicSplitRegistry, // 动态分支（并行、排他）
       StaticSplitRegistry, // 静态分支（审批）
+      SimpleSplitRegistry, // 简单分支 （不带 orderIcon 节点）
       BlockRegistry, // 单条 block 注册
       InlineBlocksRegistry, // 多个 block 组成的 block 列表
       BlockIconRegistry, // icon 节点，如条件分支的菱形图标