Subtly show PIN in BadKB

applications/main/bad_kb/bad_kb_script.h

@@ -23,6 +23,7 @@ typedef enum {
 
 typedef struct {
     BadKbWorkerState state;
+    uint32_t pin;
     uint16_t line_cur;
     uint16_t line_nb;
     uint32_t delay_remain;

applications/main/bad_kb/views/bad_kb_view.c

@@ -1,5 +1,6 @@
 #include "bad_kb_view.h"
 #include "../bad_kb_script.h"
+#include "../bad_kb_app_i.h"
 #include <toolbox/path.h>
 #include <gui/elements.h>
 #include <assets_icons.h>
@@ -38,6 +39,9 @@ static void bad_kb_draw_callback(Canvas* canvas, void* _model) {
             furi_string_push_back(disp_str, model->layout[i]);
         furi_string_push_back(disp_str, ')');
     }
+    if(model->state.pin) {
+        furi_string_cat_printf(disp_str, "  PIN: %ld", model->state.pin);
+    }
     elements_string_fit_width(canvas, disp_str, 128 - 2);
     canvas_draw_str(
         canvas, 2, 8 + canvas_current_font_height(canvas), furi_string_get_cstr(disp_str));
@@ -214,6 +218,11 @@ void bad_kb_set_layout(BadKb* bad_kb, const char* layout) {
 
 void bad_kb_set_state(BadKb* bad_kb, BadKbState* st) {
     furi_assert(st);
+    if(bad_kb->context != NULL && ((BadKbApp*)bad_kb->context)->bt != NULL) {
+        st->pin = ((BadKbApp*)bad_kb->context)->bt->pin;
+    } else {
+        st->pin = 0;
+    }
     with_view_model(
         bad_kb->view,
         BadKbModel * model,

applications/services/bt/bt_service/bt.c

@@ -76,6 +76,7 @@ static void bt_pin_code_hide(Bt* bt) {
 
 static bool bt_pin_code_verify_event_handler(Bt* bt, uint32_t pin) {
     furi_assert(bt);
+    bt->pin = pin;
 
     if(bt_get_profile_pairing_method(bt) == GapPairingNone) return true;
 
@@ -154,6 +155,8 @@ Bt* bt_alloc() {
     // API evnent
     bt->api_event = furi_event_flag_alloc();
 
+    bt->pin = 0;
+
     return bt;
 }
 
@@ -219,6 +222,7 @@ static bool bt_on_gap_event_callback(GapEvent event, void* context) {
     furi_assert(context);
     Bt* bt = context;
     bool ret = false;
+    bt->pin = 0;
 
     if(event.type == GapEventTypeConnected) {
         // Update status bar

applications/services/bt/bt_service/bt_i.h

@@ -76,4 +76,5 @@ struct Bt {
     FuriEventFlag* api_event;
     BtStatusChangedCallback status_changed_cb;
     void* status_changed_ctx;
+    uint32_t pin;
 };