Feat node search (#23685)

Co-authored-by: GuanMu <ballmanjq@gmail.com>
Co-authored-by: zhujiruo <zhujiruo@foxmail.com>
Co-authored-by: Matri Qi <matrixdom@126.com>
Co-authored-by: croatialu <wuli.croatia@foxmail.com>
Co-authored-by: HyaCinth <88471803+HyaCiovo@users.noreply.github.com>
Co-authored-by: lyzno1 <92089059+lyzno1@users.noreply.github.com>

web/app/components/workflow/utils/node-navigation.ts

@@ -0,0 +1,124 @@
+/**
+ * Node navigation utilities for workflow
+ * This module provides functions for node selection, focusing and scrolling in workflow
+ */
+
+/**
+ * Interface for node selection event detail
+ */
+export type NodeSelectionDetail = {
+  nodeId: string;
+  focus?: boolean;
+}
+
+/**
+ * Select a node in the workflow
+ * @param nodeId - The ID of the node to select
+ * @param focus - Whether to focus/scroll to the node
+ */
+export function selectWorkflowNode(nodeId: string, focus = false): void {
+  // Create and dispatch a custom event for node selection
+  const event = new CustomEvent('workflow:select-node', {
+    detail: {
+      nodeId,
+      focus,
+    },
+  })
+  document.dispatchEvent(event)
+}
+
+/**
+ * Scroll to a specific node in the workflow
+ * @param nodeId - The ID of the node to scroll to
+ */
+export function scrollToWorkflowNode(nodeId: string): void {
+  // Create and dispatch a custom event for scrolling to node
+  const event = new CustomEvent('workflow:scroll-to-node', {
+    detail: { nodeId },
+  })
+  document.dispatchEvent(event)
+}
+
+/**
+ * Setup node selection event listener
+ * @param handleNodeSelect - Function to handle node selection
+ * @returns Cleanup function
+ */
+export function setupNodeSelectionListener(
+  handleNodeSelect: (nodeId: string) => void,
+): () => void {
+  // Event handler for node selection
+  const handleNodeSelection = (event: CustomEvent<NodeSelectionDetail>) => {
+    const { nodeId, focus } = event.detail
+    if (nodeId) {
+      // Select the node
+      handleNodeSelect(nodeId)
+
+      // If focus is requested, scroll to the node
+      if (focus) {
+        // Use a small timeout to ensure node selection happens first
+        setTimeout(() => {
+          scrollToWorkflowNode(nodeId)
+        }, 100)
+      }
+    }
+  }
+
+  // Add event listener
+  document.addEventListener(
+    'workflow:select-node',
+    handleNodeSelection as EventListener,
+  )
+
+  // Return cleanup function
+  return () => {
+    document.removeEventListener(
+      'workflow:select-node',
+      handleNodeSelection as EventListener,
+    )
+  }
+}
+
+/**
+ * Setup scroll to node event listener with ReactFlow
+ * @param nodes - The workflow nodes
+ * @param reactflow - The ReactFlow instance
+ * @returns Cleanup function
+ */
+export function setupScrollToNodeListener(
+  nodes: any[],
+  reactflow: any,
+): () => void {
+  // Event handler for scrolling to node
+  const handleScrollToNode = (event: CustomEvent<NodeSelectionDetail>) => {
+    const { nodeId } = event.detail
+    if (nodeId) {
+      // Find the target node
+      const node = nodes.find(n => n.id === nodeId)
+      if (node) {
+        // Use ReactFlow's fitView API to scroll to the node
+        reactflow.fitView({
+          nodes: [node],
+          padding: 0.2,
+          duration: 800,
+          minZoom: 0.5,
+          maxZoom: 1,
+        })
+      }
+    }
+  }
+
+  // Add event listener
+  document.addEventListener(
+    'workflow:scroll-to-node',
+    handleScrollToNode as EventListener,
+  )
+
+  // Return cleanup function
+  return () => {
+    document.removeEventListener(
+      'workflow:scroll-to-node',
+      handleScrollToNode as EventListener,
+    )
+  }
+}