Qt4: fix opening directory with special characters

modules/gui/qt4/dialogs_provider.cpp

@@ -497,12 +497,25 @@ static void openDirectory( intf_thread_t *p_intf, bool pl, bool go )
 {
     QString dir = QFileDialog::getExistingDirectory( NULL, qtr( I_OP_DIR_WINTITLE ), p_intf->p_sys->filepath );
 
-    if (!dir.isEmpty() )
+    if( dir.isEmpty() )
+        return;
+
+    QString mrl;
+
+    if( dir.endsWith( "/VIDEO_TS", Qt::CaseInsensitive ) )
+        mrl = qfu("dvd://") + toNativeSeparators( dir );
+    else
     {
-        QString mrl = (dir.endsWith( "VIDEO_TS", Qt::CaseInsensitive ) ?
-                       "dvd://" : "directory://")
-                    + toNativeSeparators( dir );
+        char *uri = make_URI( qtu( dir ), "directory" );
+        if( unlikely(uri == NULL) )
+            return;
+        mrl = qfu(uri);
+        free( uri );
+    }
+
     input_item_t *p_input = input_item_New( THEPL, qtu( mrl ), NULL );
+    if( unlikely( p_input == NULL ) )
+        return;
 
     /* FIXME: playlist_AddInput() can fail */
     playlist_AddInput( THEPL, p_input,
@@ -512,7 +525,6 @@ static void openDirectory( intf_thread_t *p_intf, bool pl, bool go )
     if( !go )
         input_Read( THEPL, p_input );
     vlc_gc_decref( p_input );
-    }
 }
 
 void DialogsProvider::PLOpenDir()