Add a window for touchscreen devices.

src/video/sdl_v.cpp

@@ -23,6 +23,7 @@
 #include "../core/random_func.hpp"
 #include "../core/math_func.hpp"
 #include "../fileio_func.h"
+#include "../settings_type.h"
 #include "sdl_v.h"
 #include <SDL.h>
 #ifdef __ANDROID__
@@ -769,8 +770,10 @@ void VideoDriver_SDL::MainLoop()
 
 			bool old_ctrl_pressed = _ctrl_pressed;
 
-			_ctrl_pressed  = !!(mod & KMOD_CTRL);
-			_shift_pressed = !!(mod & KMOD_SHIFT);
+			if (_settings_client.gui.touchscreen_mode == TSC_NONE) {
+				_ctrl_pressed  = !!(mod & KMOD_CTRL);
+				_shift_pressed = !!(mod & KMOD_SHIFT);
+			}
 
 			/* determine which directional keys are down */
 			_dirkeys =