ec0bcc11f5
Added pyupgrade utility with manual stage to pre-commit and run on all files. Ref: https://github.com/asottile/pyupgrade Closes: deluge-torrent/deluge#326
67 lines
2.1 KiB
Python
67 lines
2.1 KiB
Python
#
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# Copyright (C) 2009 Andrew Resch <andrewresch@gmail.com>
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#
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# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
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# the additional special exception to link portions of this program with the OpenSSL library.
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# See LICENSE for more details.
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#
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import logging
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import deluge.component as component
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log = logging.getLogger(__name__)
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class EventManager(component.Component):
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def __init__(self):
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component.Component.__init__(self, 'EventManager')
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self.handlers = {}
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def emit(self, event):
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"""
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Emits the event to interested clients.
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:param event: DelugeEvent
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"""
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# Emit the event to the interested clients
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component.get('RPCServer').emit_event(event)
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# Call any handlers for the event
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if event.name in self.handlers:
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for handler in self.handlers[event.name]:
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# log.debug('Running handler %s for event %s with args: %s', event.name, handler, event.args)
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try:
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handler(*event.args)
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except Exception as ex:
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log.error(
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'Event handler %s failed in %s with exception %s',
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event.name,
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handler,
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ex,
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)
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def register_event_handler(self, event, handler):
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"""
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Registers a function to be called when a `:param:event` is emitted.
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:param event: str, the event name
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:param handler: function, to be called when `:param:event` is emitted
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"""
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if event not in self.handlers:
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self.handlers[event] = []
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if handler not in self.handlers[event]:
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self.handlers[event].append(handler)
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def deregister_event_handler(self, event, handler):
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"""
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Deregisters an event handler function.
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:param event: str, the event name
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:param handler: function, currently registered to handle `:param:event`
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"""
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if event in self.handlers and handler in self.handlers[event]:
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self.handlers[event].remove(handler)
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