46 lines
1.1 KiB
Python
46 lines
1.1 KiB
Python
# Copyright 2019 (c) Anna Schumaker.
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import threading
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from gi.repository import GLib
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events = { }
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idle_queue = [ ]
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event_lock = threading.Lock()
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def cancel(name, func):
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cb = events.get(name, [])
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for event in cb:
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if event[0] == func:
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cb.remove(event)
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if len(cb) == 0:
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events.pop(name)
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def clear():
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events.clear()
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idle_queue.clear()
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def notify(name, *args):
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for (func, idle) in events.get(name, []):
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if idle == True:
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with event_lock:
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if (func, args) not in idle_queue:
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idle_queue.append((func, args))
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if len(idle_queue) == 1:
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GLib.idle_add(notify_idle)
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else:
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func(*args)
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def notify_idle():
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with event_lock:
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if len(idle_queue) == 0:
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return False
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(func, args) = idle_queue.pop(0)
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more = len(idle_queue) > 0
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func(*args)
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return more
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def register(name, func, idle=False):
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cb = events.setdefault(name, [])
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if func in [ n[0] for n in cb ]:
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return
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cb.append((func, idle))
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