Moving paste() from mame_ui_manager class to natural_keyboard class,

exposing to LUA

src/emu/natkeyboard.cpp

@@ -564,6 +564,27 @@ void natural_keyboard::post_coded(const char *text, size_t length, const attotim
 }
 
 
+//-------------------------------------------------
+//  paste - does a paste from the keyboard
+//-------------------------------------------------
+
+void natural_keyboard::paste()
+{
+	// retrieve the clipboard text
+	char *text = osd_get_clipboard_text();
+
+	// was a result returned?
+	if (text != nullptr)
+	{
+		// post the text
+		post_utf8(text);
+
+		// free the string
+		free(text);
+	}
+}
+
+
 //-------------------------------------------------
 //  build_codes - given an input port table, create
 //  an input code table useful for mapping unicode

src/emu/natkeyboard.h

@@ -54,6 +54,7 @@ public:
 	void post(const char32_t *text, size_t length = 0, const attotime &rate = attotime::zero);
 	void post_utf8(const char *text, size_t length = 0, const attotime &rate = attotime::zero);
 	void post_coded(const char *text, size_t length = 0, const attotime &rate = attotime::zero);
+	void paste();
 
 	// debugging
 	void dump(std::ostream &str) const;

src/frontend/mame/luaengine.cpp

@@ -766,6 +766,7 @@ void lua_engine::initialize()
 	emu["romname"] = [this](){ return machine().basename(); };
 	emu["softname"] = [this]() { return machine().options().software_name(); };
 	emu["keypost"] = [this](const char *keys){ machine().ioport().natkeyboard().post_utf8(keys); };
+	emu["paste"] = [this](){ machine().ioport().natkeyboard().paste(); };
 	emu["time"] = [this](){ return machine().time().as_double(); };
 	emu["start"] = [this](const char *driver) {
 			int i = driver_list::find(driver);

src/frontend/mame/ui/ui.cpp

@@ -904,27 +904,6 @@ bool mame_ui_manager::can_paste()
 }
 
 
-//-------------------------------------------------
-//  paste - does a paste from the keyboard
-//-------------------------------------------------
-
-void mame_ui_manager::paste()
-{
-	// retrieve the clipboard text
-	char *text = osd_get_clipboard_text();
-
-	// was a result returned?
-	if (text != nullptr)
-	{
-		// post the text
-		machine().ioport().natkeyboard().post_utf8(text);
-
-		// free the string
-		free(text);
-	}
-}
-
-
 //-------------------------------------------------
 //  draw_fps_counter
 //-------------------------------------------------
@@ -1105,7 +1084,7 @@ uint32_t mame_ui_manager::handler_ingame(render_container &container)
 	{
 		// paste command
 		if (machine().ui_input().pressed(IPT_UI_PASTE))
-			paste();
+			machine().ioport().natkeyboard().paste();
 	}
 
 	image_handler_ingame();

src/frontend/mame/ui/ui.h

@@ -223,7 +223,6 @@ public:
 	void show_mouse(bool status);
 	virtual bool is_menu_active() override;
 	bool can_paste();
-	void paste();
 	void image_handler_ingame();
 	void increase_frameskip();
 	void decrease_frameskip();