Updating based on work with MormonChannel

[gonvert] / src / util / go_utils.py

diff --git a/src/util/go_utils.py b/src/util/go_utils.py
index 20ccac1..d066542 100644 (file)
--- a/src/util/go_utils.py
+++ b/src/util/go_utils.py
@@ -95,20 +95,24 @@ class Async(object):
 
 class Timeout(object):
 
-       def __init__(self, func):
+       def __init__(self, func, once = True):
                self.__func = func
                self.__timeoutId = None
+               self.__once = once
 
        def start(self, **kwds):
                assert self.__timeoutId is None
 
+               callback = self._on_once if self.__once else self.__func
+
                assert len(kwds) == 1
                timeoutInSeconds = kwds["seconds"]
                assert 0 <= timeoutInSeconds
+
                if timeoutInSeconds == 0:
-                       self.__timeoutId = gobject.idle_add(self._on_once)
+                       self.__timeoutId = gobject.idle_add(callback)
                else:
-                       self.__timeoutId = timeout_add_seconds(timeoutInSeconds, self._on_once)
+                       self.__timeoutId = timeout_add_seconds(timeoutInSeconds, callback)
 
        def is_running(self):
                return self.__timeoutId is not None
@@ -153,6 +157,10 @@ class AsyncPool(object):
                        pass # eat up queue to cut down dumb work
                self.__workQueue.put(_QUEUE_EMPTY)
 
+       def clear_tasks(self):
+               for _ in algorithms.itr_available(self.__workQueue):
+                       pass # eat up queue to cut down dumb work
+
        def add_task(self, func, args, kwds, on_success, on_error):
                task = func, args, kwds, on_success, on_error
                self.__workQueue.put(task)
@@ -244,6 +252,24 @@ class AsyncLinearExecution(object):
                        )
 
 
+class AutoSignal(object):
+
+       def __init__(self, toplevel):
+               self.__disconnectPool = []
+               toplevel.connect("destroy", self.__on_destroy)
+
+       def connect_auto(self, widget, *args):
+               id = widget.connect(*args)
+               self.__disconnectPool.append((widget, id))
+
+       @misc.log_exception(_moduleLogger)
+       def __on_destroy(self, widget):
+               _moduleLogger.info("Destroy: %r (%s to clean up)" % (self, len(self.__disconnectPool)))
+               for widget, id in self.__disconnectPool:
+                       widget.disconnect(id)
+               del self.__disconnectPool[:]
+
+
 def throttled(minDelay, queue):
        """
        Throttle the calls to a function by queueing all the calls that happen