optimize: add qtwebengine zh_CN support

.github/scripts/windows-publish.ps1

@@ -52,7 +52,11 @@ function Main() {
     Copy-Item $sdkDll $archiveName\
     Copy-Item winlibs\lib\msvc\*.dll $archiveName\
     Copy-Item locale\*.qm $archiveName\locale\
-    # Copy-Item qtsingleapplication\lib\*.dll $archiveName\
+    Write-Host "copy qwebengine zh_CN translation"
+    Copy-Item thirdparty\qwebengine_ts\*.qm $archiveName\locale\
+    $webengineqm="{0}\translations\qtwebengine_*.qm" -f $env:Qt5_Dir
+    Write-Host "copy qtwebengine qm from $($webengineqm)"
+    Copy-Item $webengineqm $archiveName\locale\
     Write-Host "compress zip..."
     # 打包zip
     Compress-Archive -Path $archiveName -DestinationPath $archiveName'.zip'

main.cc

@@ -1,4 +1,4 @@
-/* This file is (c) 2008-2012 Konstantin Isakov <[email protected]>
+/* This file is (c) 2008-2012 Konstantin Isakov <[email protected]>
  * Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
 
 #include <stdio.h>
@@ -385,31 +385,23 @@ int main( int argc, char ** argv )
   if( !cfg.preferences.interfaceLanguage.isEmpty() && localeName != cfg.preferences.interfaceLanguage )
   {
     localeName = cfg.preferences.interfaceLanguage;
-    QLocale locale( localeName );
-    QLocale::setDefault( locale );
-    if( !qtTranslator.load( "qt_" + localeName, Config::getLocDir() ) )
-    {
-      qtTranslator.load( "qt_" + localeName, QLibraryInfo::location( QLibraryInfo::TranslationsPath ) );
-      app.installTranslator( &qtTranslator );
-    }
-
-    translator.load( Config::getLocDir() + "/" + localeName );
-    app.installTranslator( &translator );
   }
-  else
-  {
-    QString localeName = QLocale::system().name();
-
 
-    if( !qtTranslator.load( "qt_" + localeName, Config::getLocDir() ) )
-    {
-      qtTranslator.load( "qt_" + localeName, QLibraryInfo::location( QLibraryInfo::TranslationsPath ) );
+  QLocale locale( localeName );
+  QLocale::setDefault( locale );
+  if( !qtTranslator.load( "qt_" + localeName, Config::getLocDir() ) )
+  {
+    qtTranslator.load( "qt_" + localeName, QLibraryInfo::location( QLibraryInfo::TranslationsPath ) );
+    app.installTranslator( &qtTranslator );
+  }
 
-      app.installTranslator( &qtTranslator );
-    }
+  translator.load( Config::getLocDir() + "/" + localeName );
+  app.installTranslator( &translator );
 
-    translator.load( Config::getLocDir() + "/" + localeName );
-    app.installTranslator( &translator );
+  QTranslator webengineTs;
+  if( webengineTs.load( "qtwebengine_" + localeName, Config::getLocDir() ) )
+  {
+    app.installTranslator( &webengineTs );
   }
 
   // Prevent app from quitting spontaneously when it works with scan popup

thirdparty/qwebengine_ts/README.md

@@ -0,0 +1,7 @@
+qt webengine lacks the translation of chinese .
+this file is a compilation of this qwebengine_zh_CN.ts
+(https://codereview.qt-project.org/c/qt/qttranslations/+/399180) .
+
+provided as a temporarily way to support zh_CN.
+
+