diff --git a/libsearch/pluginmanage/search-task-plugin-manager.h b/libsearch/pluginmanage/search-task-plugin-manager.h
index dcee0bb..0435b21 100644
--- a/libsearch/pluginmanage/search-task-plugin-manager.h
+++ b/libsearch/pluginmanage/search-task-plugin-manager.h
@@ -20,6 +20,7 @@ Q_SIGNALS:
 private:
     explicit SearchTaskPluginManager(QObject *parent = nullptr);
 
+    //这里初衷是把内外部插件分开管理，内部插件可以增加枚举值，外部插件似乎只能用编写者自定义的字符串区分？
     QHash<int, SearchTaskPluginIface*> m_buildinPlugin;
     QHash<QString, SearchTaskPluginIface*> m_loadedPlugin;
 
diff --git a/libsearch/searchinterface/result-item-private.h b/libsearch/searchinterface/result-item-private.h
index ae682ac..826c6ef 100644
--- a/libsearch/searchinterface/result-item-private.h
+++ b/libsearch/searchinterface/result-item-private.h
@@ -6,10 +6,12 @@ namespace UkuiSearch {
 class ResultItemPrivate
 {
 public:
-    explicit ResultItemPrivate(const QString &itemKey, ResultItem *parent);
+    explicit ResultItemPrivate(ResultItem *parent);
     ~ResultItemPrivate();
+    void setSearchId(size_t searchId);
+    void setItemKey(QString itemKey);
 private:
-    size_t searchId;
+    size_t m_searchId;
     QString m_itemKey;
     QString m_label;
     QVariant m_extral;
diff --git a/libsearch/searchinterface/result-item.cpp b/libsearch/searchinterface/result-item.cpp
index 79ff90e..5910a50 100644
--- a/libsearch/searchinterface/result-item.cpp
+++ b/libsearch/searchinterface/result-item.cpp
@@ -1,18 +1,42 @@
 #include "result-item.h"
 #include "result-item-private.h"
 using namespace UkuiSearch;
-ResultItemPrivate::ResultItemPrivate::ResultItemPrivate(const QString &itemKey, ResultItem *parent)
+ResultItemPrivate::ResultItemPrivate::ResultItemPrivate(ResultItem *parent) : q(parent)
 {
-
 }
 
 ResultItemPrivate::~ResultItemPrivate()
 {
 
 }
-ResultItem::ResultItem(const QString &itemKey)
+
+void ResultItemPrivate::setSearchId(size_t searchId)
 {
-    d = new ResultItemPrivate(itemKey, this);
+    m_searchId = searchId;
+}
+
+void ResultItemPrivate::setItemKey(QString itemKey)
+{
+    m_itemKey = itemKey;
+}
+ResultItem::ResultItem() : d(new ResultItemPrivate(this))
+{
+}
+
+ResultItem::ResultItem(const size_t searchId) : d(new ResultItemPrivate(this))
+{
+    d->setSearchId(searchId);
+}
+
+ResultItem::ResultItem(const QString itemKey) : d(new ResultItemPrivate(this))
+{
+    d->setItemKey(itemKey);
+}
+
+ResultItem::ResultItem(const size_t searchId, const QString itemKey) : d(new ResultItemPrivate(this))
+{
+    d->setSearchId(searchId);
+    d->setItemKey(itemKey);
 }
 
 ResultItem::~ResultItem()
diff --git a/libsearch/searchinterface/result-item.h b/libsearch/searchinterface/result-item.h
index 3689692..be32ae3 100644
--- a/libsearch/searchinterface/result-item.h
+++ b/libsearch/searchinterface/result-item.h
@@ -8,7 +8,10 @@ class ResultItemPrivate;
 class ResultItem
 {
 public:
-    explicit ResultItem(const QString &itemKey);
+    explicit ResultItem();
+    explicit ResultItem(const size_t searchId);
+    explicit ResultItem(const QString itemKey);
+    explicit ResultItem(const size_t searchId, const QString itemKey);
     ~ResultItem();
 private:
     ResultItemPrivate *d;
diff --git a/libsearch/searchinterface/search-controller-private.h b/libsearch/searchinterface/search-controller-private.h
index c39b41a..7fae89c 100644
--- a/libsearch/searchinterface/search-controller-private.h
+++ b/libsearch/searchinterface/search-controller-private.h
@@ -2,7 +2,6 @@
 #define SEARCHCONTROLLERPRIVATE_H
 
 #include <QMutex>
-#include <QSharedPointer>
 #include "search-controller.h"
 namespace UkuiSearch {
 
@@ -20,6 +19,8 @@ public:
     void addKeyword(QString &keyword);
     void setActiveKeywordSegmentation(bool active);
     void addFileLabel(QString &label);
+    void setOnlySearchFile(bool onlySearchFile);
+    void setOnlySearchDir(bool onlySearchDir);
 
     size_t getCurrentSearchId();
     DataQueue<ResultItem>* getDataQueue();
@@ -31,19 +32,26 @@ public:
     QStringList getKeyword();
     bool isKeywordSegmentationActived();
     QStringList getFileLabel();
+    bool isSearchFileOnly();
+    bool isSearchDirOnly();
 
 private:
+    void copyData();
+    //TODO: 这里是否可以改为字节对齐的写法？
     DataQueue<ResultItem>* m_dataQueue = nullptr ;
+    std::shared_ptr<DataQueue<ResultItem>> m_sharedDataueue = nullptr;
     size_t m_searchId = 0;
     QMutex m_searchIdMutex;
-    SearchController *q;
-    QSharedPointer<SearchController> m_formerController;
+    SearchController *q = nullptr;
+    std::shared_ptr<SearchController> m_formerController = nullptr;
 
     QStringList m_keywords;
     QStringList m_searchDirs;
     QStringList m_FileLabels;
     bool m_recurse = true;
     bool m_activeKeywordSegmentation = false;
+    bool m_onlySearchFile = false;
+    bool m_onlySearchDir = false;
 
 };
 }
diff --git a/libsearch/searchinterface/search-controller.cpp b/libsearch/searchinterface/search-controller.cpp
index 8ee243e..aa3d47a 100644
--- a/libsearch/searchinterface/search-controller.cpp
+++ b/libsearch/searchinterface/search-controller.cpp
@@ -4,23 +4,14 @@
 #include <QDebug>
 using namespace UkuiSearch;
 SearchControllerPrivate::SearchControllerPrivate(SearchController *parent)
-    : q(parent)
+    : q(parent),
+      m_formerController(q->m_parent) //如果构造参数里包含父节点智能指针，则子节点带有一个智能指针指向父节点
 {
-    if(q->m_parent) {
-        m_formerController = QSharedPointer<SearchController>(q->m_parent);
-        m_searchId = q->m_parent->d->m_searchId;
-        m_dataQueue = q->m_parent->d->m_dataQueue;
-        m_keywords = q->m_parent->d->m_keywords;
-        m_searchDirs = q->m_parent->d->m_searchDirs;
-        m_FileLabels = q->m_parent->d->m_FileLabels;
-        m_recurse = q->m_parent->d->m_recurse;
-        m_activeKeywordSegmentation = q->m_parent->d->m_activeKeywordSegmentation;
-    }
+    copyData();
 }
 
 SearchControllerPrivate::~SearchControllerPrivate()
 {
-    m_formerController.clear();
 }
 
 size_t SearchControllerPrivate::refreshSearchId()
@@ -35,6 +26,7 @@ DataQueue<ResultItem> *SearchControllerPrivate::refreshDataqueue()
 {
     if(!m_dataQueue) {
         m_dataQueue = new DataQueue<ResultItem>;
+        m_sharedDataueue = std::shared_ptr<DataQueue<ResultItem>>(m_dataQueue);
         return m_dataQueue;
     }
     m_dataQueue->clear();
@@ -45,6 +37,7 @@ DataQueue<ResultItem> *SearchControllerPrivate::initDataQueue()
 {
     if(!m_dataQueue) {
         m_dataQueue = new DataQueue<ResultItem>;
+        m_sharedDataueue = std::shared_ptr<DataQueue<ResultItem>>(m_dataQueue);
         return m_dataQueue;
     }
     return m_dataQueue;
@@ -75,6 +68,16 @@ void SearchControllerPrivate::addFileLabel(QString &label)
     m_FileLabels.append(label);
 }
 
+void SearchControllerPrivate::setOnlySearchFile(bool onlySearchFile)
+{
+    m_onlySearchFile = onlySearchFile;
+}
+
+void SearchControllerPrivate::setOnlySearchDir(bool onlySearchDir)
+{
+    m_onlySearchDir = onlySearchDir;
+}
+
 size_t SearchControllerPrivate::getCurrentSearchId()
 {
     return m_searchId;
@@ -82,7 +85,7 @@ size_t SearchControllerPrivate::getCurrentSearchId()
 
 DataQueue<ResultItem> *SearchControllerPrivate::getDataQueue()
 {
-    return m_dataQueue;
+    return m_sharedDataueue.get();
 }
 
 bool SearchControllerPrivate::beginSearchIdCheck(size_t searchId)
@@ -112,30 +115,57 @@ void SearchControllerPrivate::stop()
 
 QStringList SearchControllerPrivate::getSearchDir()
 {
-
+    return m_searchDirs;
 }
 
 bool SearchControllerPrivate::isRecurse()
 {
-
+     return m_recurse;
 }
 
 QStringList SearchControllerPrivate::getKeyword()
 {
-
+    return m_keywords;
 }
 
 bool SearchControllerPrivate::isKeywordSegmentationActived()
 {
-
+    return m_activeKeywordSegmentation;
 }
 
 QStringList SearchControllerPrivate::getFileLabel()
 {
-
+    return m_FileLabels;
 }
 
-SearchController::SearchController(SearchController *parent) : m_parent(parent), d(new SearchControllerPrivate(this))
+bool SearchControllerPrivate::isSearchFileOnly()
+{
+    return m_onlySearchFile;
+}
+
+bool SearchControllerPrivate::isSearchDirOnly()
+{
+    return m_onlySearchDir;
+}
+
+void SearchControllerPrivate::copyData()
+{
+
+    if(m_formerController.get()) {
+        m_searchId = m_formerController.get()->getCurrentSearchId();
+        //所有子节点都有一个指向根节点的队列的智能指针
+        m_sharedDataueue = m_formerController.get()->d->m_sharedDataueue;
+        m_keywords = m_formerController.get()->getKeyword();
+        m_searchDirs = m_formerController.get()->getSearchDir();
+        m_FileLabels = m_formerController.get()->getFileLabel();
+        m_onlySearchFile = m_formerController.get()->isSearchFileOnly();
+        m_onlySearchDir = m_formerController.get()->isSearchDirOnly();
+        m_recurse = m_formerController.get()->isRecurse();
+        m_activeKeywordSegmentation = m_formerController.get()->isKeywordSegmentationActived();
+    }
+}
+
+SearchController::SearchController(std::shared_ptr<SearchController> parent) : m_parent(parent), d(new SearchControllerPrivate(this))
 {
 }
 
@@ -176,7 +206,7 @@ void SearchController::addKeyword(QString &keyword)
 
 size_t SearchController::getCurrentSearchId()
 {
-    d->getCurrentSearchId();
+    return d->getCurrentSearchId();
 }
 
 DataQueue<ResultItem> *SearchController::getDataQueue()
@@ -194,6 +224,16 @@ void SearchController::addFileLabel(QString &label)
     d->addFileLabel(label);
 }
 
+void SearchController::setOnlySearchFile(bool onlySearchFile)
+{
+    d->setOnlySearchFile(onlySearchFile);
+}
+
+void SearchController::setOnlySearchDir(bool onlySearchDir)
+{
+    d->setOnlySearchDir(onlySearchDir);
+}
+
 bool SearchController::beginSearchIdCheck(size_t searchId)
 {
     return d->beginSearchIdCheck(searchId);
@@ -201,7 +241,42 @@ bool SearchController::beginSearchIdCheck(size_t searchId)
 
 void SearchController::finishSearchIdCheck()
 {
-   d->finishSearchIdCheck();
+    d->finishSearchIdCheck();
+}
+
+QStringList SearchController::getSearchDir()
+{
+    return d->getSearchDir();
+}
+
+bool SearchController::isRecurse()
+{
+    return d->isRecurse();
+}
+
+QStringList SearchController::getKeyword()
+{
+    return d->getKeyword();
+}
+
+bool SearchController::isKeywordSegmentationActived()
+{
+    return d->isKeywordSegmentationActived();
+}
+
+QStringList SearchController::getFileLabel()
+{
+    return d->getFileLabel();
+}
+
+bool SearchController::isSearchFileOnly()
+{
+    return d->isSearchFileOnly();
+}
+
+bool SearchController::isSearchDirOnly()
+{
+    return d->isSearchDirOnly();
 }
 
 void SearchController::stop()
diff --git a/libsearch/searchinterface/search-controller.h b/libsearch/searchinterface/search-controller.h
index 1d19a4b..866dbad 100644
--- a/libsearch/searchinterface/search-controller.h
+++ b/libsearch/searchinterface/search-controller.h
@@ -2,17 +2,23 @@
 #define SEARCHCONTROLLER_H
 
 #include <QStringList>
+#include <memory>
 #include "data-queue.h"
 //todo: url parser?
 namespace UkuiSearch {
 class UkuiSearchTask;
 class ResultItem;
 class SearchControllerPrivate;
+/*
+ *搜索控制，用于传递搜索条件，搜索唯一ID，以及管理队列等。
+ *为树形结构，所有子节点含有智能指针指向父节点。
+ *只要有插件还在使用资源，其对应的子节点以及通向根节点上所有的实例就不会被释放，析构时，从下往上由智能指针自动析构
+ */
 class SearchController
 {
     friend class SearchControllerPrivate;
 public:
-    explicit SearchController(SearchController *parent = nullptr);
+    explicit SearchController(std::shared_ptr<SearchController> parent = nullptr);
     ~SearchController();
     DataQueue<ResultItem>* refreshDataqueue();
     size_t refreshSearchId();
@@ -24,6 +30,8 @@ public:
     void addKeyword(QString &keyword);
     void setActiveKeywordSegmentation(bool active);
     void addFileLabel(QString &label);
+    void setOnlySearchFile(bool onlySearchFile);
+    void setOnlySearchDir(bool onlySearchDir);
     //以上方法插件请不要调用
 
     //以下方法插件可以调用
@@ -37,9 +45,12 @@ public:
     QStringList getKeyword();
     bool isKeywordSegmentationActived();
     QStringList getFileLabel();
+    bool isSearchFileOnly();
+    bool isSearchDirOnly();
 private:
-    SearchControllerPrivate *d;
-    SearchController *m_parent;
+    std::shared_ptr<SearchController> m_parent = nullptr;
+    SearchControllerPrivate *d = nullptr;
+
 };
 }
 
diff --git a/libsearch/searchinterface/searchtasks/file-search-task.cpp b/libsearch/searchinterface/searchtasks/file-search-task.cpp
index a76aac7..4b9d70e 100644
--- a/libsearch/searchinterface/searchtasks/file-search-task.cpp
+++ b/libsearch/searchinterface/searchtasks/file-search-task.cpp
@@ -2,26 +2,30 @@
 using namespace UkuiSearch;
 FileSearchTask::FileSearchTask(SearchController searchController): m_searchControl(searchController)
 {
+    m_pool = new QThreadPool(this);
+    m_pool->setMaxThreadCount(1);
 }
 
 const QString FileSearchTask::name()
 {
-
+    return "File";
 }
 
 const QString FileSearchTask::description()
 {
-
+    return "File search.";
 }
 
 QString FileSearchTask::getCustomSearchType()
 {
-
+    return "File";
 }
 
 void FileSearchTask::startSearch(SearchController searchController)
 {
-
+    FileSearchWorker *fileSearchWorker;
+    fileSearchWorker = new FileSearchWorker(this, searchController);
+    m_pool->start(fileSearchWorker);
 }
 
 void FileSearchTask::stop()
@@ -29,6 +33,11 @@ void FileSearchTask::stop()
 
 }
 
+void FileSearchTask::sendFinishSignal(size_t searchId)
+{
+    Q_EMIT searchFinished(searchId);
+}
+
 void FileSearchTask::run()
 {
     //file search, based on index or direct search?
@@ -41,3 +50,23 @@ void FileSearchTask::run()
     m_searchControl.finishSearchIdCheck();
     //finish
 }
+
+FileSearchWorker::FileSearchWorker(FileSearchTask *fileSarchTask, SearchController searchController) : m_FileSearchTask(fileSarchTask), m_searchController(searchController)
+{
+}
+
+void FileSearchWorker::run()
+{
+    //TODO do search here
+
+    size_t searchId = m_searchController.getCurrentSearchId();
+    ResultItem ri(searchId);
+    if(m_searchController.beginSearchIdCheck(m_searchController.getCurrentSearchId())) {
+        m_searchController.getDataQueue()->enqueue(ri);
+        m_searchController.finishSearchIdCheck();
+    } else {
+        m_searchController.finishSearchIdCheck();
+        return;
+    }
+    QMetaObject::invokeMethod(m_FileSearchTask, "searchFinished", Q_ARG(size_t, searchId));
+}
diff --git a/libsearch/searchinterface/searchtasks/file-search-task.h b/libsearch/searchinterface/searchtasks/file-search-task.h
index 9e7f828..5323b13 100644
--- a/libsearch/searchinterface/searchtasks/file-search-task.h
+++ b/libsearch/searchinterface/searchtasks/file-search-task.h
@@ -1,9 +1,16 @@
 #ifndef FILESEARCHTASK_H
 #define FILESEARCHTASK_H
+
+#include <QIcon>
+#include <QThreadPool>
+#include <QRunnable>
 #include "search-task-plugin-iface.h"
 #include "search-controller.h"
-#include <QIcon>
+#include "result-item.h"
 namespace UkuiSearch {
+/*
+ * 这里只写了大概框架，具体逻辑未实现，可以当成伪代码参考。
+*/
 class FileSearchTask : public SearchTaskPluginIface
 {
     Q_OBJECT
@@ -13,17 +20,30 @@ public:
     const QString name();
     const QString description();
     const QIcon icon() {return QIcon::fromTheme("folder");}
-    void setEnable(bool enable) {}
-    bool isEnable() {}
+    void setEnable() {}
+    bool isEnable() { return true;}
 
     SearchType getSearchType() {return SearchType::File;}
     QString getCustomSearchType();
     void startSearch(SearchController searchController);
     void stop();
+    Q_INVOKABLE void sendFinishSignal(size_t searchId);
 protected:
     void run();
 private:
     SearchController m_searchControl;
+    QThreadPool *m_pool = nullptr;
+};
+
+class FileSearchWorker : public QRunnable
+{
+public:
+    explicit FileSearchWorker(FileSearchTask *fileSarchTask, SearchController searchController);
+protected:
+    void run();
+private:
+    FileSearchTask *m_FileSearchTask;
+    SearchController m_searchController;
 };
 }
 #endif // FILESEARCHTASK_H
diff --git a/libsearch/searchinterface/ukui-search-task-private.h b/libsearch/searchinterface/ukui-search-task-private.h
index f2bfa10..10ddd13 100644
--- a/libsearch/searchinterface/ukui-search-task-private.h
+++ b/libsearch/searchinterface/ukui-search-task-private.h
@@ -4,7 +4,7 @@
 #include "ukui-search-task.h"
 #include <QThreadPool>
 #include <QMutex>
-#include <QSharedPointer>
+#include <memory>
 
 #include "data-queue.h"
 #include "search-controller.h"
@@ -20,12 +20,14 @@ public:
     void setRecurse(bool recurse = true);
     void addKeyword(QString &keyword);
     void addFileLabel(QString &label);
+    void setOnlySearchFile(bool onlySearchFile);
+    void setOnlySearchDir(bool onlySearchDir);
     void setSearchOnlineApps(bool searchOnlineApps);
     size_t startSearch(SearchType searchtype, QString customSearchType = QString());
     void stop();
 
 private:
-    SearchController* m_searchCotroller;
+    std::shared_ptr<SearchController> m_searchCotroller = nullptr;
     size_t m_searchId = 0;
     UkuiSearchTask* q = nullptr;
 
diff --git a/libsearch/searchinterface/ukui-search-task.cpp b/libsearch/searchinterface/ukui-search-task.cpp
index 9a9e676..acdd2b0 100644
--- a/libsearch/searchinterface/ukui-search-task.cpp
+++ b/libsearch/searchinterface/ukui-search-task.cpp
@@ -7,7 +7,7 @@ UkuiSearchTaskPrivate::UkuiSearchTaskPrivate(UkuiSearchTask *parent)
     : QObject(parent),
       q(parent)
 {
-    m_searchCotroller = new SearchController();
+    m_searchCotroller = std::shared_ptr<SearchController>(new SearchController());
 }
 
 UkuiSearchTaskPrivate::~UkuiSearchTaskPrivate()
@@ -40,6 +40,16 @@ void UkuiSearchTaskPrivate::addFileLabel(QString &label)
     m_searchCotroller->addFileLabel(label);
 }
 
+void UkuiSearchTaskPrivate::setOnlySearchFile(bool onlySearchFile)
+{
+    m_searchCotroller->setOnlySearchFile(onlySearchFile);
+}
+
+void UkuiSearchTaskPrivate::setOnlySearchDir(bool onlySearchDir)
+{
+    m_searchCotroller->setOnlySearchDir(onlySearchDir);
+}
+
 void UkuiSearchTaskPrivate::setSearchOnlineApps(bool searchOnlineApps)
 {
 }
@@ -79,7 +89,7 @@ UkuiSearchTask::~UkuiSearchTask()
 
 DataQueue<ResultItem> *UkuiSearchTask::init()
 {
-    d->init();
+    return d->init();
 }
 
 void UkuiSearchTask::addSearchDir(QString &path)
@@ -102,14 +112,24 @@ void UkuiSearchTask::addFileLabel(QString &label)
     d->addFileLabel(label);
 }
 
+void UkuiSearchTask::setOnlySearchFile(bool onlySearchFile)
+{
+    d->setOnlySearchFile(onlySearchFile);
+}
+
+void UkuiSearchTask::setOnlySearchDir(bool onlySearchDir)
+{
+    d->setOnlySearchDir(onlySearchDir);
+}
+
 void UkuiSearchTask::setSearchOnlineApps(bool searchOnlineApps)
 {
     d->setSearchOnlineApps(searchOnlineApps);
 }
 
-size_t UkuiSearchTask::startSearch(SearchType searchtype, QString customSearchTYpe)
+size_t UkuiSearchTask::startSearch(SearchType searchtype, QString customSearchType)
 {
-    return d->startSearch(searchtype, customSearchTYpe);
+    return d->startSearch(searchtype, customSearchType);
 }
 
 void UkuiSearchTask::stop()
diff --git a/libsearch/searchinterface/ukui-search-task.h b/libsearch/searchinterface/ukui-search-task.h
index 642f671..6f6fc9e 100644
--- a/libsearch/searchinterface/ukui-search-task.h
+++ b/libsearch/searchinterface/ukui-search-task.h
@@ -17,8 +17,10 @@ public:
     void setRecurse(bool recurse = true);
     void addKeyword(QString &keyword);
     void addFileLabel(QString &label);
+    void setOnlySearchFile(bool onlySearchFile);
+    void setOnlySearchDir(bool onlySearchDir);
     void setSearchOnlineApps(bool searchOnlineApps);
-    size_t startSearch(SearchType searchtype, QString customSearchTYpe = QString());
+    size_t startSearch(SearchType searchtype, QString customSearchType = QString());
     void stop();
 
 Q_SIGNALS: