69 lines
1.7 KiB
Python
69 lines
1.7 KiB
Python
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class Signals(object):
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def __init__(self):
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self._signals = {}
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def _connect(self, obj, name, handler, connector):
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ret = self._signals.setdefault(obj, {})
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hid = connector(name, handler)
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ret.setdefault(name, []).append(hid)
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return hid
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def connect_signal(self, obj, name, handler):
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return self._connect(obj, name, handler, obj.connect)
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def connect_signal_after(self, obj, name, handler):
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return self._connect(obj, name, handler, obj.connect_after)
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def disconnect_signals(self, obj):
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if obj not in self._signals:
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return False
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for name in self._signals[obj]:
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for hid in self._signals[obj][name]:
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obj.disconnect(hid)
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del self._signals[obj]
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return True
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def block_signal(self, obj, name):
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if obj not in self._signals:
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return False
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if name not in self._signals[obj]:
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return False
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for hid in self._signals[obj][name]:
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obj.handler_block(hid)
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return True
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def unblock_signal(self, obj, name):
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if obj not in self._signals:
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return False
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if name not in self._signals[obj]:
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return False
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for hid in self._signals[obj][name]:
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obj.handler_unblock(hid)
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return True
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def disconnect_signal(self, obj, name):
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if obj not in self._signals:
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return False
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if name not in self._signals[obj]:
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return False
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for hid in self._signals[obj][name]:
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obj.disconnect(hid)
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del self._signals[obj][name]
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if len(self._signals[obj]) == 0:
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del self._signals[obj]
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return True
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