diff --git a/editor/src/editor.cpp b/editor/src/editor.cpp
index 39297056..2a5408d5 100644
--- a/editor/src/editor.cpp
+++ b/editor/src/editor.cpp
@@ -51,13 +51,22 @@ void Editor::loadFile(const QString &filepath)
     QFile file(filepath);
 
     if (file.open(QFile::ReadOnly)) {
-        auto fileContent = file.readAll();
+        // set mouse status to wait.
+        QApplication::setOverrideCursor(Qt::WaitCursor);
+
+        // reads all remaining data from the file.
+        QByteArray fileContent = file.readAll();
+
+        // read the encode.
         m_fileEncode = Utils::getFileEncode(fileContent, filepath);
 
         QTextStream stream(&fileContent);
         stream.setCodec(m_fileEncode);
         textEditor->setPlainText(stream.readAll());
 
+        // restore mouse style.
+        QApplication::restoreOverrideCursor();
+
         updatePath(filepath);
         detectNewline();
 
diff --git a/editor/src/window.cpp b/editor/src/window.cpp
index caf7288c..735fc485 100644
--- a/editor/src/window.cpp
+++ b/editor/src/window.cpp
@@ -63,13 +63,17 @@ Window::Window(DMainWindow *parent)
       m_titlebarStyleSheet(titlebar()->styleSheet()),
       m_themeName(m_settings->settings->option("base.theme.default")->value().toString())
 {
+    m_blankFileDir = QDir(QStandardPaths::standardLocations(QStandardPaths::DataLocation).first()).filePath("blank-files");
+    m_readonlyFileDir = QDir(QStandardPaths::standardLocations(QStandardPaths::DataLocation).first()).filePath("readonly-files");
+    autoSaveDBus = new DBusDaemon::dbus("com.deepin.editor.daemon", "/", QDBusConnection::systemBus(), this);
+
     // Init.
     installEventFilter(this);
     setAcceptDrops(true);
 
-    m_blankFileDir = QDir(QStandardPaths::standardLocations(QStandardPaths::DataLocation).first()).filePath("blank-files");
-    m_readonlyFileDir = QDir(QStandardPaths::standardLocations(QStandardPaths::DataLocation).first()).filePath("readonly-files");
-    autoSaveDBus = new DBusDaemon::dbus("com.deepin.editor.daemon", "/", QDBusConnection::systemBus(), this);
+    // Apply qss theme.
+    Utils::applyQss(this, "main.qss");
+    loadTheme(m_themeName);
 
     // Init settings.
     connect(m_settings, &Settings::adjustFont, this, &Window::updateFont);
@@ -157,10 +161,6 @@ Window::Window(DMainWindow *parent)
     for (DSimpleListItem* item : m_themeBar->items) {
         (static_cast<ThemeItem*>(item))->setFrameColor(frameSelectedColor, frameNormalColor);
     }
-
-    // Apply qss theme.
-    Utils::applyQss(this, "main.qss");
-    loadTheme(m_themeName);
 }
 
 Window::~Window()