feat(文件树): 实现后端搜索并优化前端搜索性能

- 将文件搜索逻辑移至后端 services.js，支持文件夹名称匹配
- 重构前端搜索，使用防抖调用后端搜索 API
- 搜索结果自动构建树形结构并展开所有匹配目录
- 移除前端递归过滤逻辑，提升大目录搜索性能

public/preload/services.js

@@ -201,6 +201,16 @@ window.services = {
           const fullPath = path.join(currentDir, item.name);
           if (item.isDirectory()) {
             if (item.name === ".git" || item.name === "node_modules") continue; // 忽略特定目录
+            
+            // 如果文件夹名匹配，也加入结果
+            if (item.name.toLowerCase().includes(keyword.toLowerCase())) {
+              allFiles.push({
+                name: item.name,
+                path: fullPath,
+                type: "directory",
+              });
+            }
+            
             await traverse(fullPath);
           } else {
             if (item.name.toLowerCase().includes(keyword.toLowerCase())) {

src/components/FileTree.vue

@@ -96,7 +96,7 @@ import { useTabs } from '../composables/useTabs';
 import { useConfig } from '../composables/useConfig';
 import { message, Modal } from 'ant-design-vue';
 
-const { state, loadDirectory, refresh } = useFileTree();
+const { state, loadDirectory, refresh, searchFiles } = useFileTree();
 const { openFile } = useTabs();
 const { config, addPinnedFile, removePinnedFile, setShowHiddenItems } = useConfig();
 
@@ -142,76 +142,22 @@ const filterNodes = (nodes) => {
   }));
 };
 
-const searchFilterNodes = (nodes, keyword) => {
-  if (!Array.isArray(nodes) || nodes.length === 0) return [];
-  const lowerKeyword = keyword.toLowerCase();
-  
-  const result = [];
-  for (const node of nodes) {
-    const nameMatch = node.name.toLowerCase().includes(lowerKeyword);
-    // 递归处理子节点
-    let filteredChildren = [];
-    if (node.children) {
-      filteredChildren = searchFilterNodes(node.children, keyword);
-    }
-    
-    // 如果当前节点匹配，或者子节点有匹配项，则保留
-    if (nameMatch || filteredChildren.length > 0) {
-      result.push({
-        ...node,
-        children: node.children ? filteredChildren : undefined
-      });
-    }
-  }
-  return result;
-};
-
-// 获取所有需要展开的路径
-const getExpandedKeys = (nodes, keyword, result = []) => {
-  if (!keyword) return result;
-  const lowerKeyword = keyword.toLowerCase();
-  
-  for (const node of nodes) {
-    const nameMatch = node.name.toLowerCase().includes(lowerKeyword);
-    let hasChildMatch = false;
-    
-    if (node.children) {
-      const initialLength = result.length;
-      getExpandedKeys(node.children, keyword, result);
-      if (result.length > initialLength) {
-        hasChildMatch = true;
-      }
-    }
-    
-    // 如果子节点有匹配，当前节点需要展开
-    if (hasChildMatch) {
-      result.push(node.path);
-    }
-  }
-  return result;
-};
-
 const treeData = computed(() => {
   // 1. 基础过滤（隐藏文件）
+  // 搜索模式下，state.nodes 已经是过滤后的结果（虽然可能包含隐藏文件，如果 searchFileName 没过滤的话）
+  // 这里我们还是统一过滤一下隐藏文件
   let nodes = filterNodes(state.nodes);
   
-  // 2. 搜索过滤
-  if (searchKeyword.value) {
-    nodes = searchFilterNodes(nodes, searchKeyword.value);
-  }
-  
   return transformNodes(nodes);
 });
 
-// 监听搜索关键词，自动展开
+// 防抖搜索
+let searchTimer = null;
 watch(searchKeyword, (newVal) => {
-  if (newVal) {
-    const nodes = filterNodes(state.nodes); // 基于基础过滤后的节点计算
-    const keysToExpand = [];
-    getExpandedKeys(nodes, newVal, keysToExpand);
-    // 合并并去重
-    state.expandedKeys = [...new Set([...state.expandedKeys, ...keysToExpand])];
-  }
+  if (searchTimer) clearTimeout(searchTimer);
+  searchTimer = setTimeout(() => {
+    searchFiles(newVal);
+  }, 300);
 });
 
 const toggleShowHiddenItems = async () => {

src/composables/useFileTree.js

@@ -109,6 +109,105 @@ export function useFileTree() {
     }
   };
 
+  // 构建树辅助函数
+  const buildTreeFromSearchResults = (items, rootPath) => {
+    const rootNodes = [];
+    const sep = window.utools.isWindows() ? '\\' : '/';
+
+    items.forEach(item => {
+      // 计算相对路径
+      if (!item.path.startsWith(rootPath)) return;
+      
+      let relative = item.path.substring(rootPath.length);
+      if (relative.startsWith(sep)) {
+        relative = relative.substring(1);
+      }
+      if (!relative) return;
+
+      const parts = relative.split(sep);
+      
+      let currentLevel = rootNodes;
+      let currentPath = rootPath;
+
+      parts.forEach((part, index) => {
+        const isLast = index === parts.length - 1;
+        // 如果是最后一项，使用 item 的类型；中间节点必定是 directory
+        const type = isLast ? item.type : 'directory';
+        
+        currentPath = currentPath.endsWith(sep) ? currentPath + part : currentPath + sep + part;
+
+        let existingNode = currentLevel.find(n => n.name === part);
+
+        if (!existingNode) {
+          existingNode = {
+            id: currentPath,
+            path: currentPath,
+            name: part,
+            type: type,
+            children: type === 'directory' ? [] : undefined
+          };
+          currentLevel.push(existingNode);
+        }
+
+        if (type === 'directory') {
+          if (!existingNode.children) existingNode.children = [];
+          currentLevel = existingNode.children;
+        }
+      });
+    });
+
+    // 排序
+    const sortNodes = (nodes) => {
+      nodes.sort(compareFileTreeItems);
+      nodes.forEach(node => {
+        if (node.children) sortNodes(node.children);
+      });
+    };
+    sortNodes(rootNodes);
+    
+    return rootNodes;
+  };
+
+  // 递归获取所有目录路径用于展开
+  const getAllDirectoryPaths = (nodes, result = []) => {
+    for (const node of nodes) {
+      if (node.type === 'directory') {
+        result.push(node.path);
+        if (node.children) {
+          getAllDirectoryPaths(node.children, result);
+        }
+      }
+    }
+    return result;
+  };
+
+  // 搜索文件
+  const searchFiles = async (keyword) => {
+    if (!state.rootPath) return;
+    
+    if (!keyword) {
+      // 关键词为空，恢复根目录视图
+      await loadDirectory(state.rootPath);
+      state.expandedKeys = [];
+      return;
+    }
+
+    if (!window.services?.searchFileName) return;
+
+    state.loading = true;
+    try {
+      const items = await window.services.searchFileName(state.rootPath, keyword);
+      const tree = buildTreeFromSearchResults(items, state.rootPath);
+      state.nodes = tree;
+      // 自动展开所有搜索结果中的目录
+      state.expandedKeys = getAllDirectoryPaths(tree);
+    } catch (error) {
+      console.error("Search failed", error);
+    } finally {
+      state.loading = false;
+    }
+  };
+
   return {
     state,
     setRootPath,
@@ -116,6 +215,7 @@ export function useFileTree() {
     expandNode,
     collapseNode,
     toggleExpand,
-    refresh
+    refresh,
+    searchFiles
   };
 }