fix(color): USB SD card mode may crash to emergency mode (#7657) (#7678)

Co-authored-by: Peter Feerick <5500713+pfeerick@users.noreply.github.com>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>

Author: pfeerick

radio/src/gui/colorlcd/libui/mainwindow.cpp

@@ -23,6 +23,7 @@
 #include "layout.h"
 #include "etx_lv_theme.h"
 #include "sdcard.h"
+#include "view_main.h"
 
 // timers_driver.h
 uint32_t timersGetMsTick();
@@ -57,6 +58,8 @@ void MainWindow::run(bool trash)
 {
   auto start = timersGetMsTick();
 
+  ViewMain::checkWidgetSelectTimeout();
+
   auto opaque = Layer::getFirstOpaque();
   if (opaque) {
     opaque->checkEvents();

radio/src/gui/colorlcd/mainview/view_main.cpp

@@ -297,25 +297,20 @@ void ViewMain::onCancel()
 
 void ViewMain::refreshWidgetSelectTimer()
 {
-  if (!widget_select_timer) {
-    widget_select_timer = lv_timer_create(ViewMain::ws_timer, 10 * 1000, this);
-  } else {
-    lv_timer_reset(widget_select_timer);
-  }
+  widgetSelectCancelTime = get_tmr10ms() + 1000; // 10 seconds
 }
 
-bool ViewMain::enableWidgetSelect(bool enable)
+void ViewMain::enableWidgetSelect(bool enable)
 {
   TRACE("enableWidgetSelect(%d)", enable);
-  // TODO: start timer
-  if (widget_select == enable) return false;
+  if (widget_select == enable) return;
   widget_select = enable;
 
   lv_obj_t* tile = lv_tileview_get_tile_act(tile_view);
-  if (!tile) return true;
+  if (!tile) return;
 
   auto cont_obj = lv_obj_get_child(tile, 0);
-  if (!cont_obj) return true;
+  if (!cont_obj) return;
 
   auto cont = (WidgetsContainer*)lv_obj_get_user_data(cont_obj);
 
@@ -329,30 +324,33 @@ bool ViewMain::enableWidgetSelect(bool enable)
     lv_obj_clear_flag(tile_view, LV_OBJ_FLAG_SCROLLABLE);
     lv_obj_clear_flag(tile_view, LV_OBJ_FLAG_SCROLL_CHAIN_HOR);
     lv_obj_clear_flag(tile_view, LV_OBJ_FLAG_SCROLL_CHAIN_VER);
+
+    refreshWidgetSelectTimer();
   } else {
     lv_obj_add_flag(tile_view, LV_OBJ_FLAG_SCROLLABLE);
     lv_obj_add_flag(tile_view, LV_OBJ_FLAG_SCROLL_CHAIN_HOR);
     lv_obj_add_flag(tile_view, LV_OBJ_FLAG_SCROLL_CHAIN_VER);
 
-    if (widget_select_timer) {
-      lv_timer_del(widget_select_timer);
-      widget_select_timer = nullptr;
-    }
+    widgetSelectCancelTime = 0;
   }
-
-  return true;
 }
 
 void ViewMain::openMenu()
 {
   viewMainMenu = new ViewMainMenu(this, [=]() { viewMainMenu = nullptr; });
 }
 
-void ViewMain::ws_timer(lv_timer_t* t)
+void ViewMain::checkWidgetSelectTimeout()
 {
-  ViewMain* view = (ViewMain*)t->user_data;
-  if (!view) return;
-  view->enableWidgetSelect(false);
+  if (_instance) _instance->_checkWidgetSelectTimeout();
+}
+
+void ViewMain::_checkWidgetSelectTimeout()
+{
+  if (deleted()) return;
+
+  if (widget_select && widgetSelectCancelTime < get_tmr10ms())
+    enableWidgetSelect(false);
 }
 
 bool ViewMain::onLongPress()

radio/src/gui/colorlcd/mainview/view_main.h

@@ -54,7 +54,7 @@ class ViewMain : public NavWindow
   void enableTopbar();
   void disableTopbar();
   void updateTopbarVisibility();
-  bool enableWidgetSelect(bool enable);
+  void enableWidgetSelect(bool enable);
 
   // Get the available space in the middle of the screen
   // (without topbar)
@@ -87,14 +87,16 @@ class ViewMain : public NavWindow
   void runBackground();
   void refreshWidgetSelectTimer();
 
+  static void checkWidgetSelectTimeout();
+
  protected:
   static ViewMain* _instance;
 
   bool isVisible = true;
   lv_obj_t* tile_view = nullptr;
   TopBar* topbar = nullptr;
   bool widget_select = false;
-  lv_timer_t* widget_select_timer = nullptr;
+  tmr10ms_t widgetSelectCancelTime = 0;
   ViewMainMenu* viewMainMenu = nullptr;
 
   // Widget setup requires special permissions ;-)
@@ -105,7 +107,7 @@ class ViewMain : public NavWindow
   void setTopbarVisible(float visible);
   void setEdgeTxButtonVisible(float visible);
 
-  static void ws_timer(lv_timer_t* t);
+  void _checkWidgetSelectTimeout();
 
 #if defined(HARDWARE_KEYS)
   void onPressSYS() override;