disalbe code suggestion while using ibus as the input method

RedPandaIDE/editor.cpp

@@ -57,6 +57,8 @@
 
 QHash<ParserLanguage,std::weak_ptr<CppParser>> Editor::mSharedParsers;
 
+int Editor::mShouldDisableSuggestionInInputMethodEvent = -1;
+
 Editor::Editor(QWidget *parent):
     Editor(parent,"untitled",ENCODING_AUTO_DETECT,nullptr,true,nullptr)
 {
@@ -1338,7 +1340,21 @@ void Editor::mouseReleaseEvent(QMouseEvent *event)
 
 void Editor::inputMethodEvent(QInputMethodEvent *event)
 {
-    QSynedit::QSynEdit::inputMethodEvent(event);
+    QSynedit::QSynEdit::inputMethodEvent(event);  
+#ifdef Q_OS_UNIX
+    if (mShouldDisableSuggestionInInputMethodEvent == -1) {
+        //not inited
+        QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+        //input method is ibus, disable suggestion
+        mShouldDisableSuggestionInInputMethodEvent =
+                (env.value("QT_IM_MODULE")=="ibus" )? 1 : 0;
+    }
+    if (mShouldDisableSuggestionInInputMethodEvent == 1)  {
+        if (pMainWindow->completionPopup()->isVisible())
+            pMainWindow->completionPopup()->close();
+        return;
+    }
+#endif
     QString s = event->commitString();
     if (s.isEmpty())
         return;

RedPandaIDE/editor.h

@@ -355,6 +355,9 @@ private:
     QMap<QString,StatementKind> mIdentCache;
 
     static QHash<ParserLanguage,std::weak_ptr<CppParser>> mSharedParsers;
+#ifdef Q_OS_UNIX
+    static int mShouldDisableSuggestionInInputMethodEvent;
+#endif
 
     // QWidget interface
 protected: