82 lines
2.9 KiB
Python
82 lines
2.9 KiB
Python
#
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# eventmanager.py
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#
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# Copyright (C) 2009 Andrew Resch <andrewresch@gmail.com>
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#
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# Deluge is free software.
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#
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# You may redistribute it and/or modify it under the terms of the
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# GNU General Public License, as published by the Free Software
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# Foundation; either version 3 of the License, or (at your option)
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# any later version.
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#
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# deluge is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with deluge. If not, write to:
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# The Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor
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# Boston, MA 02110-1301, USA.
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#
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# In addition, as a special exception, the copyright holders give
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# permission to link the code of portions of this program with the OpenSSL
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# library.
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# You must obey the GNU General Public License in all respects for all of
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# the code used other than OpenSSL. If you modify file(s) with this
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# exception, you may extend this exception to your version of the file(s),
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# but you are not obligated to do so. If you do not wish to do so, delete
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# this exception statement from your version. If you delete this exception
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# statement from all source files in the program, then also delete it here.
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#
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#
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import deluge.component as component
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from deluge.log import LOG as log
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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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handler(*event.args)
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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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