50 lines
1.3 KiB
Python
50 lines
1.3 KiB
Python
from functools import wraps
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from time import time
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from PyQt5.QtCore import pyqtSignal
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from electrum.util import EventListener, event_listener
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class QtEventListener(EventListener):
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qt_callback_signal = pyqtSignal(tuple)
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def register_callbacks(self):
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self.qt_callback_signal.connect(self.on_qt_callback_signal)
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EventListener.register_callbacks(self)
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def unregister_callbacks(self):
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#self.qt_callback_signal.disconnect()
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EventListener.unregister_callbacks(self)
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def on_qt_callback_signal(self, args):
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func = args[0]
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return func(self, *args[1:])
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# decorator for members of the QtEventListener class
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def qt_event_listener(func):
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func = event_listener(func)
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@wraps(func)
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def decorator(self, *args):
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self.qt_callback_signal.emit( (func,) + args)
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return decorator
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# return delay in msec when expiry time string should be updated
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# returns 0 when expired or expires > 1 day away (no updates needed)
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def status_update_timer_interval(exp):
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# very roughly according to util.age
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exp_in = int(exp - time())
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exp_in_min = int(exp_in/60)
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interval = 0
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if exp_in < 0:
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interval = 0
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elif exp_in_min < 2:
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interval = 1000
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elif exp_in_min < 90:
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interval = 1000 * 60
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elif exp_in_min < 1440:
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interval = 1000 * 60 * 60
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return interval
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