[add] New layout 'KeyboardConfirmationButton'

src/ragger/firmware/nbgl/layouts.py

@@ -84,6 +84,18 @@ def tap(self):
         self.client.finger_touch(*self.positions)
 
 
+class KeyboardConfirmationButton(Element):
+    """
+    This layout is to be used as the confirmation button when coupled with a keyboard.
+
+    On Stax devices, the screen is high enoug that this is equivalent to TappableCenter, however
+    on Flex, this button is not centered, but slightly closer to the top of the screen.
+    """
+
+    def confirm(self):
+        self.client.finger_touch(*self.positions)
+
+
 # Headers
 #########
 class RightHeader(Element):

src/ragger/firmware/nbgl/positions.py

@@ -32,6 +32,9 @@ def __iter__(self):
 # Flex resolution is 480x600
 FLEX_CENTER = Position(240, 300)
 
+# Used for Flex keyboard 'validation' button, which is not vertically centered, contrary to Stax
+FLEX_BUTTON_UPPER_CENTER_MIDDLE = Position(240, 250)
+
 STAX_BUTTON_UPPER_LEFT = Position(36, 36)
 FLEX_BUTTON_UPPER_LEFT = Position(45, 45)
 
@@ -366,6 +369,10 @@ def __iter__(self):
         Firmware.STAX: STAX_CENTER,
         Firmware.FLEX: FLEX_CENTER,
     },
+    "KeyboardConfirmationButton": {
+        Firmware.STAX: STAX_CENTER,
+        Firmware.FLEX: FLEX_BUTTON_UPPER_CENTER_MIDDLE,
+    },
     "RightHeader": {
         Firmware.STAX: STAX_BUTTON_UPPER_RIGHT,
         Firmware.FLEX: FLEX_BUTTON_UPPER_RIGHT