emscripten: Support message skip

src/menu_emscripten.c

@@ -25,6 +25,7 @@
 
 #include "portab.h"
 #include "menu.h"
+#include "input.h"
 
 void menu_open(void) {
 	return;
@@ -74,3 +75,12 @@ void menu_init(void) {
 void menu_gtkmainiteration() {
 	return;
 }
+
+EM_JS(void, menu_setSkipState, (boolean enabled, boolean activated), {
+	xsystem35.shell.setSkipButtonState(enabled, activated);
+});
+
+EMSCRIPTEN_KEEPALIVE
+void msgskip_activate(int enable) {
+	set_skipMode(enable);
+}