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https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-12-25 12:42:41 -06:00
55 lines
2 KiB
Python
55 lines
2 KiB
Python
"""Undocumented Module"""
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__all__ = ['BulletinBoardWatcher']
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from direct.directnotify import DirectNotifyGlobal
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from direct.showbase.PythonUtil import Functor, makeList
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from direct.showbase import DirectObject
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class BulletinBoardWatcher(DirectObject.DirectObject):
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""" This class allows you to wait for a set of posts to be made to (or
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removed from) the bulletin board, and gives you a notification when all
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posts have been made. Values of posts are not examined."""
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notify = DirectNotifyGlobal.directNotify.newCategory('BulletinBoardWatcher')
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def __init__(self, name, postNames, callback, removeNames=None):
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self.notify.debug('__init__: %s, %s, %s' % (name, postNames, callback))
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if removeNames is None:
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removeNames = []
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self.name = name
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self.postNames = makeList(postNames)
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self.removeNames = makeList(removeNames)
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self.callback = callback
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self.waitingOn = set()
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for name in self.postNames:
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if not bboard.has(name):
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eventName = bboard.getEvent(name)
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self.waitingOn.add(eventName)
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self.acceptOnce(eventName, Functor(self._handleEvent, eventName))
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for name in self.removeNames:
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if bboard.has(name):
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eventName = bboard.getRemoveEvent(name)
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self.waitingOn.add(eventName)
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self.acceptOnce(eventName, Functor(self._handleEvent, eventName))
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self._checkDone()
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def destroy(self):
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self.ignoreAll()
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if hasattr(self, 'callback'):
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del self.callback
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del self.waitingOn
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def isDone(self):
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return len(self.waitingOn) == 0
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def _checkDone(self):
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if self.isDone():
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self.notify.debug('%s: done' % self.name)
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self.callback()
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self.destroy()
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def _handleEvent(self, eventName):
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self.notify.debug('%s: handlePost(%s)' % (self.name, eventName))
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assert eventName in self.waitingOn
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self.waitingOn.remove(eventName)
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self._checkDone()
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