67 lines
1.8 KiB
Python
67 lines
1.8 KiB
Python
from trezor import res, ui
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from trezor.messages import PinMatrixRequestType
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from trezor.ui.confirm import CONFIRMED, ConfirmDialog
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from trezor.ui.pin import PinMatrix
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class PinCancelled(Exception):
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pass
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@ui.layout
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async def request_pin(code=None, cancellable: bool=True) -> str:
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def onchange():
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c = dialog.cancel
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if matrix.pin:
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back = res.load(ui.ICON_BACK)
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if c.content is not back:
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c.normal_style = ui.BTN_CLEAR['normal']
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c.content = back
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c.enable()
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c.taint()
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else:
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lock = res.load(ui.ICON_LOCK)
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if not cancellable and c.content:
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c.content = ''
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c.disable()
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c.taint()
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elif c.content is not lock:
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c.normal_style = ui.BTN_CANCEL['normal']
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c.content = lock
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c.enable()
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c.taint()
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c.render()
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label = _get_label(code)
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matrix = PinMatrix(label, with_zero=True)
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matrix.onchange = onchange
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dialog = ConfirmDialog(matrix)
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dialog.cancel.area = ui.grid(12)
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dialog.confirm.area = ui.grid(14)
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matrix.onchange()
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while True:
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result = await dialog
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if result == CONFIRMED:
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return matrix.pin
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elif result != CONFIRMED and matrix.pin:
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matrix.change('')
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continue
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else:
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raise PinCancelled()
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def _get_label(code):
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if isinstance(code, str):
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return code
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if code is None:
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code = PinMatrixRequestType.Current
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if code == PinMatrixRequestType.NewFirst:
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label = 'Enter new PIN'
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elif code == PinMatrixRequestType.NewSecond:
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label = 'Re-enter new PIN'
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else: # PinMatrixRequestType.Current
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label = 'Enter your PIN'
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return label
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