2026-07-02_14_31_VX5 韩国

fileManage/FileManageWidget.cpp

@@ -36,7 +36,12 @@ FileManageWidget::FileManageWidget(QWidget *parent) :
     connect(ui->systemFileListView, &QListWidget::itemSelectionChanged, this, &FileManageWidget::refreshButtonsStatus);
     connect(ui->udiskFileListView, &QListWidget::itemSelectionChanged, this, &FileManageWidget::refreshButtonsStatus);
 
-    updateUDiskDevList();
+    m_hasUDisk = checkUDiskPresent();
+    onUDiskStateChanged();
+
+    m_udiskCheckTimer = new QTimer(this);
+    connect(m_udiskCheckTimer, &QTimer::timeout, this, &FileManageWidget::onUDiskCheckTimeout);
+    m_udiskCheckTimer->start(1000);
 
     m_focusedListView = ui->systemFileListView;
     m_focusedListView->setFocus();
@@ -47,6 +52,7 @@ FileManageWidget::FileManageWidget(QWidget *parent) :
 
 FileManageWidget::~FileManageWidget()
 {
+    m_udiskCheckTimer->stop();
     ui->systemFileListView->removeEventFilter(this);
     ui->udiskFileListView->removeEventFilter(this);
     delete ui;
@@ -94,20 +100,22 @@ void FileManageWidget::onFilterCBoxSelectChanged(int i)
     }
 
     m_currFilterType = i;
-    updateFileListView(ui->systemFileListView);
-    updateFileListView(ui->udiskFileListView);
+    refreshFileList(ui->systemFileListView);
+    if (m_hasUDisk) {
+        refreshFileList(ui->udiskFileListView);
+    }
 }
 
 void FileManageWidget::onExportBtnClicked()
 {
     copyFiles(ui->systemFileListView, ui->udiskFileListView);
-    updateFileListView(ui->udiskFileListView);
+    refreshFileList(ui->udiskFileListView);
 }
 
 void FileManageWidget::onImportBtnClicked()
 {
     copyFiles(ui->udiskFileListView, ui->systemFileListView);
-    updateFileListView(ui->systemFileListView);
+    refreshFileList(ui->systemFileListView);
 }
 
 void FileManageWidget::onSelectAllBtnClicked()
@@ -138,37 +146,59 @@ void FileManageWidget::onDelSelectedBtnClicked()
         qInfo() << "Delete: " << filename << ", result: " << ret;
     }
 
-    updateFileListView(m_focusedListView);
+    refreshFileList(m_focusedListView);
 }
 
-void FileManageWidget::updateUDiskDevList()
+bool FileManageWidget::checkUDiskPresent()
 {
-    bool hasUDisk = false;
     QFile mountsFile("/proc/mounts");
     if (mountsFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
-        QTextStream in(&mountsFile);
-        while (!in.atEnd()) {
-            const QString line = in.readLine();
-            if (line.contains("/udisk ")) {
-                hasUDisk = true;
-                break;
-            }
-        }
+        QString mountsContent = QString::fromLocal8Bit(mountsFile.readAll());
         mountsFile.close();
+        if (mountsContent.lastIndexOf("/udisk ") != -1) {
+                return true;
+        }
     }
+    return false;
+}
 
-    if (!hasUDisk) {
-        QDir dir(UDISK_DOC_ROOT_DIR);
-        hasUDisk = dir.exists();
+bool FileManageWidget::ensureUDiskDocDir()
+{
+    QDir dir(UDISK_DOC_ROOT_DIR);
+    if (!dir.exists()) {
+        if (!dir.mkpath(UDISK_DOC_ROOT_DIR)) {
+            qCritical() << "Cannot create UDisk doc dir:" << UDISK_DOC_ROOT_DIR;
+            return false;
+        }
+        qInfo() << "Created UDisk doc dir:" << UDISK_DOC_ROOT_DIR;
     }
+    return true;
+}
 
+void FileManageWidget::onUDiskCheckTimeout()
+{
+    bool hasUDisk = checkUDiskPresent();
+    if (hasUDisk == m_hasUDisk) {
+        return;
+    }
+    m_hasUDisk = hasUDisk;
+    onUDiskStateChanged();
+}
+
+void FileManageWidget::onUDiskStateChanged()
+{
     ui->udiskSelectBox->clear();
-    if (hasUDisk) {
+    if (m_hasUDisk) {
         ui->udiskSelectBox->addItem(tr("U盘"));
         ui->udiskSelectBox->setCurrentIndex(0);
+        if (ensureUDiskDocDir()) {
+            refreshFileList(ui->udiskFileListView);
+        } else {
+            ui->udiskFileListView->clear();
+        }
+    } else {
+        ui->udiskFileListView->clear();
     }
-
-    updateFileListView(ui->udiskFileListView);
 }
 
 void FileManageWidget::refreshButtonsStatus()
@@ -187,15 +217,14 @@ void FileManageWidget::refreshButtonsStatus()
     ui->selectAllBtn->setEnabled(m_focusedListView->count() != selectedItems.size());
 }
 
-int FileManageWidget::updateFileListView(QListWidget* listView)
+int FileManageWidget::refreshFileList(QListWidget* listView)
 {
     QString searchPath = listView->property("searchPath").toString();
 
-    // 判断目录是否存在
     QDir dir(searchPath);
-    if(!dir.exists()) {
-        qCritical() << "Cannot open path: " << searchPath;
-        return -1;
+    if (!dir.exists()) {
+        listView->clear();
+        return 0;
     }
 
     // 根据过滤类型设置过滤器字符串

fileManage/FileManageWidget.h

@@ -3,6 +3,7 @@
 
 #include <QWidget>
 #include <QListWidget>
+#include <QTimer>
 
 namespace Ui {
 class FileManageWidget;
@@ -33,13 +34,16 @@ private slots:
     void onSelectAllBtnClicked();
     void onCancelAllBtnClicked();
     void onDelSelectedBtnClicked();
-    void updateUDiskDevList();
+    void onUDiskCheckTimeout();
 
     void refreshButtonsStatus();
 
 private:
 
-    int updateFileListView(QListWidget* listView);
+    bool checkUDiskPresent();
+    bool ensureUDiskDocDir();
+    int refreshFileList(QListWidget* listView);
+    void onUDiskStateChanged();
 
     void copyFiles(QListWidget* from, QListWidget* to);
 
@@ -48,10 +52,12 @@ private:
     int m_currFilterType;
     QListWidget* m_focusedListView = nullptr;
 
-    // 用于文件显示列表中，存放每个文件名对应的绝对路径所用的数据键
     static constexpr int AbsPathRole = Qt::UserRole + 1;
 
+    QTimer* m_udiskCheckTimer = nullptr;
+    bool m_hasUDisk = false;
+
     void applyStyleSheet();    // 应用样式表
 };
 
-#endif // FILEMANAGEWIDGET_H
+#endif // FILEMANAGEWIDGET_H