class EventManager(Component):
def __init__(self):
# The name is "EventManager"
super(EventManager, self).__init__(self.__class__.__name__)
self.handlers = {}
self.plugin_thread = None
def emit(self, event):
"""
Emits the event to interested clients.
:param event: MirrorEvent
"""
if event.name not in self.handlers:
return
if (not self.plugin_thread) or (not self.plugin_thread.isAlive()):
if self.plugin_thread:
del self.plugin_thread
self.plugin_thread = PluginThread()
self.plugin_thread.start()
self.plugin_thread.add_event(event)
def register_event_handler(self, event, handler):
"""
Register a function to be called when a `:param:event` is emitted.
:param event: string, the event name
:param handler: function, to be called when `:param:event` is emitted
"""
if event not in self.handlers:
self.handlers[event] = []
if handler not in self.handlers[event]:
self.handlers[event].append(handler)
def deregister_event_handler(self, event, handler):
"""
Deregisters an event handler function.
:param event: string, the event name
:param handler: function, currently registered to handle `:param:event`
"""
if event in self.handlers and handler in self.handlers[event]:
self.handlers[event].remove(handler)
def stop(self):
"""
When EventManager is stopped, if plugin_thread is still alive,
set the stop_event to make it exit.
"""
if self.plugin_thread and self.plugin_thread.isAlive():
self.plugin_thread.stop_event.set()
class EventManager(Component):
def __init__(self):
# The name is "EventManager"
super(EventManager, self).__init__(self.__class__.__name__)
self.handlers = {}
self.plugin_thread = None
def emit(self, event):
"""
Emits the event to interested clients.
:param event: MirrorEvent
"""
if event.name not in self.handlers:
return
if (not self.plugin_thread) or (not self.plugin_thread.isAlive()):
if self.plugin_thread:
del self.plugin_thread
self.plugin_thread = PluginThread()
self.plugin_thread.start()
self.plugin_thread.add_event(event)
def register_event_handler(self, event, handler):
"""
Register a function to be called when a `:param:event` is emitted.
:param event: string, the event name
:param handler: function, to be called when `:param:event` is emitted
"""
if event not in self.handlers:
self.handlers[event] = []
if handler not in self.handlers[event]:
self.handlers[event].append(handler)
def deregister_event_handler(self, event, handler):
"""
Deregisters an event handler function.
:param event: string, the event name
:param handler: function, currently registered to handle `:param:event`
"""
if event in self.handlers and handler in self.handlers[event]:
self.handlers[event].remove(handler)
def stop(self):
"""
When EventManager is stopped, if plugin_thread is still alive,
set the stop_event to make it exit.
"""
if self.plugin_thread and self.plugin_thread.isAlive():
self.plugin_thread.stop_event.set()
def emit(self, event):
"""
Emits the event to interested clients.
:param event: MirrorEvent
"""
if event.name not in self.handlers:
return
if (not self.plugin_thread) or (not self.plugin_thread.isAlive()):
if self.plugin_thread:
del self.plugin_thread
self.plugin_thread = PluginThread()
self.plugin_thread.start()
self.plugin_thread.add_event(event)
def emit(self, event):
"""
Emits the event to interested clients.
:param event: MirrorEvent
"""
if event.name not in self.handlers:
return
if (not self.plugin_thread) or (not self.plugin_thread.isAlive()):
if self.plugin_thread:
del self.plugin_thread
self.plugin_thread = PluginThread()
self.plugin_thread.start()
self.plugin_thread.add_event(event)
