Improve HowTo app

ThomasFarstrike · ThomasFarstrike · commit 7635c52baacf · 2026-03-18T13:33:07.000+01:00
diff --git a/internal_filesystem/builtin/apps/com.micropythonos.howto/assets/howto.py b/internal_filesystem/builtin/apps/com.micropythonos.howto/assets/howto.py
@@ -11,20 +11,39 @@ class HowTo(Activity):
     def onCreate(self):
         screen = lv.obj()
         screen.set_flex_flow(lv.FLEX_FLOW.COLUMN)
+        '''
+        welcome_label = lv.label(screen)
+        welcome_label.set_width(lv.pct(100))
+        welcome_label.set_text("Welcome!")
+        welcome_label.set_style_text_font(lv.font_montserrat_34, lv.PART.MAIN)
+        welcome_label.set_style_margin_bottom(2, lv.PART.MAIN)
+        '''
+        preamble = "How to Navigate"
+        title_label = lv.label(screen)
+        title_label.set_width(lv.pct(100))
+        title_label.set_text(preamble)
+        title_label.set_style_text_font(lv.font_montserrat_24, lv.PART.MAIN)
         label = lv.label(screen)
         label.set_width(lv.pct(100))
-        touchhelp = "swipe from the left edge to go back and from the top edge to open the menu."
-        label.set_text(f'''
-Welcome!
+        label.set_style_text_font(lv.font_montserrat_14, lv.PART.MAIN)
+        buttonhelp = '''As you don't have a touch screen, you need to use the buttons to navigate:
+        
+- If you have a joystick and at least 2 buttons, then use the joystick to move around. Use one of the buttons to ENTER and another to go BACK.
 
-This app will explain how to move around in MicroPythonOS.
+- If you have 3 buttons, then one is PREVIOUS, one is ENTER and one is NEXT. To go back, press PREVIOUS and NEXT together.
 
-If you're on a touch screen, {touchhelp}
-
-If you've got 3 buttons, one is PREVIOUS, one is ENTER and one is NEXT. To go back, press PREVIOUS and NEXT together.
-
-If you've got 2 buttons, one is PREVIOUS, the other is NEXT. To ENTER, press both at the same time. To go back, long-press PREVIOUS.
-        ''')
+- If you have just 2 buttons, then one is PREVIOUS, the other is NEXT. To ENTER, press both at the same time. To go back, long-press the PREVIOUS button.
+        '''
+        touchhelp = "Swipe from the left edge to go back and from the top edge to open the menu."
+        from mpos import InputManager
+        if InputManager.has_pointer():
+            label.set_text(f'''
+{touchhelp}
+            ''')
+        else:
+            label.set_text(f'''
+{buttonhelp}
+            ''')
         label.set_long_mode(lv.label.LONG_MODE.WRAP)
 
         self.dontshow_checkbox = lv.checkbox(screen)
diff --git a/internal_filesystem/lib/mpos/board/lilygo_t_watch_s3_plus.py b/internal_filesystem/lib/mpos/board/lilygo_t_watch_s3_plus.py
@@ -47,7 +47,9 @@
 i2c_bus = i2c.I2C.Bus(host=0, sda=39, scl=40, freq=400000, use_locks=False)
 touch_dev = i2c.I2C.Device(bus=i2c_bus, dev_id=ft6x36.I2C_ADDR, reg_bits=ft6x36.BITS)
 import pointer_framework
-indev=ft6x36.FT6x36(touch_dev, startup_rotation=pointer_framework.lv.DISPLAY_ROTATION._180)
+indev = ft6x36.FT6x36(touch_dev, startup_rotation=pointer_framework.lv.DISPLAY_ROTATION._180)
+from mpos import InputManager
+InputManager.register_indev(indev)
 
 mpos.ui.main_display.set_rotation(lv.DISPLAY_ROTATION._180)
 
diff --git a/internal_filesystem/lib/mpos/board/linux.py b/internal_filesystem/lib/mpos/board/linux.py
@@ -50,9 +50,10 @@
 # display.set_dpi(65) # doesn't seem to change the default 130...
 mpos.ui.main_display.init()
 # main_display.set_dpi(65) # doesn't seem to change the default 130...
-
 import sdl_pointer
 mouse = sdl_pointer.SDLPointer()
+InputManager.register_indev(mouse)
+
 
 def catch_escape_key(indev, indev_data):
     global sdlkeyboard
diff --git a/internal_filesystem/lib/mpos/ui/input_manager.py b/internal_filesystem/lib/mpos/ui/input_manager.py
@@ -65,6 +65,35 @@ def has_indev_type(cls, indev_type):
                 return True
         return False
     
+    @classmethod
+    def has_pointer(cls):
+        """Check if any registered input device is a pointer/touch device."""
+        import lvgl as lv
+        if cls.has_indev_type(lv.INDEV_TYPE.POINTER):
+            return True
+        get_next = getattr(lv, "indev_get_next", None)
+        if get_next:
+            indev = get_next(None)
+            while indev:
+                try:
+                    if indev.get_type() == lv.INDEV_TYPE.POINTER:
+                        return True
+                except Exception:
+                    pass
+                indev = get_next(indev)
+        get_active = getattr(lv, "indev_active", None) or getattr(lv, "indev_get_act", None)
+        if get_active:
+            try:
+                indev = get_active()
+            except Exception:
+                indev = None
+            if indev:
+                try:
+                    return indev.get_type() == lv.INDEV_TYPE.POINTER
+                except Exception:
+                    return False
+        return False
+    
     @classmethod
     def pointer_xy(cls):
         """Get current pointer/touch coordinates."""
