activate screensaver on ClearSession message

firmware/fsm.c

@@ -448,6 +448,7 @@ void fsm_msgClearSession(ClearSession *msg)
 {
 	(void)msg;
 	session_clear(true); // clear PIN as well
+	layoutScreensaver();
 	fsm_sendSuccess("Session cleared");
 }
 

firmware/layout2.c

@@ -49,14 +49,21 @@ void layoutProgressSwipe(const char *desc, int permil)
 	layoutProgress(desc, permil);
 }
 
+void layoutScreensaver(void)
+{
+	layoutLast = layoutScreensaver;
+	oledClear();
+	oledRefresh();
+}
+
 void layoutHome(void)
 {
-	if (layoutLast == layoutHome) {
+	if (layoutLast == layoutHome || layoutLast == layoutScreensaver) {
 		oledClear();
 	} else {
-		layoutLast = layoutHome;
 		oledSwipeLeft();
 	}
+	layoutLast = layoutHome;
 	const char *label = storage_getLabel();
 	const uint8_t *homescreen = storage_getHomescreen();
 	if (homescreen) {

firmware/layout2.h

@@ -26,6 +26,7 @@
 void layoutDialogSwipe(LayoutDialogIcon icon, const char *btnNo, const char *btnYes, const char *desc, const char *line1, const char *line2, const char *line3, const char *line4, const char *line5, const char *line6);
 void layoutProgressSwipe(const char *desc, int permil);
 
+void layoutScreensaver(void);
 void layoutHome(void);
 void layoutConfirmOutput(const CoinType *coin, const TxOutputType *out);
 void layoutConfirmTx(const CoinType *coin, uint64_t amount_out, uint64_t amount_fee);