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annotate piecrust/events.py @ 1145:e94737572542

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serve: Fix an issue where false positive matches were rendered as the requested page. Now we try to render the page, but also try to detect for the most common "empty" pages.
author Ludovic Chabant <ludovic@chabant.com>
date Tue, 05 Jun 2018 22:08:51 -0700
parents f070a4fc033c
children
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f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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2 class Event(object):
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f070a4fc033c core: Continue PieCrust3 refactor, simplify pages.
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3 """ A simple implementation of a subscribable event.
f070a4fc033c core: Continue PieCrust3 refactor, simplify pages.
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4 """
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5 def __init__(self):
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6 self._handlers = []
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8 def __iadd__(self, handler):
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9 self._handlers.append(handler)
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10 return self
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12 def __isub__(self, handler):
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13 self._handlers.remove(handler)
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14 return self
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16 def fire(self, *args, **kwargs):
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17 # Make a copy of the handlers list in case some handler removes
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18 # itself while executing.
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19 handlers = list(self._handlers)
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20 for handler in handlers:
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21 handler(*args, **kwargs)
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