Optimize brightness settings page.

Author: lihuanhuan

core/src/trezor/lvglui/scrs/homescreen.py

@@ -3187,6 +3187,12 @@ def on_click(self, event_obj):
 
 
 class BacklightSetting(AnimScreen):
+    _is_visible = False
+
+    @classmethod
+    def page_is_visible(cls) -> bool:
+        return cls._is_visible
+
     def __init__(self, prev_scr=None):
         if not hasattr(self, "_init"):
             self._init = True
@@ -3196,6 +3202,8 @@ def __init__(self, prev_scr=None):
             prev_scr=prev_scr, title=_(i18n_keys.TITLE__BRIGHTNESS), nav_back=True
         )
 
+        self.__class__._is_visible = True
+
         self.current_brightness = device.get_brightness()
         self.temp_brightness = self.current_brightness
         self.container = ContainerFlexCol(self.content_area, self.title)
@@ -3241,6 +3249,7 @@ def eventhandler(self, event_obj):
         event = event_obj.code
         target = event_obj.get_target()
         if event == lv.EVENT.CLICKED:
+            self.__class__._is_visible = False
             if isinstance(target, lv.imgbtn):
                 if target == self.nav_back.nav_btn:
                     if self.temp_brightness != self.current_brightness:

core/src/trezor/utils.py

@@ -177,7 +177,10 @@ def lcd_resume(timeouts_ms: int | None = None) -> bool:
     uart.ctrl_wireless_charge(False)
     if display.backlight() != device.get_brightness() or timeouts_ms:
         global AUTO_POWER_OFF
-        display.backlight(device.get_brightness())
+        from trezor.lvglui.scrs.homescreen import BacklightSetting
+
+        if not BacklightSetting.page_is_visible():
+            display.backlight(device.get_brightness())
         AUTO_POWER_OFF = False
         from trezor.lvglui.scrs import fingerprints