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Prompt comment cleanup

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This commit is contained in:
Florian Bruhin 2014-07-02 06:52:30 +02:00
parent 5c84616ff4
commit a466b672b3
1 changed files with 23 additions and 5 deletions
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28
qutebrowser/widgets/statusbar/prompt.py
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@ -41,6 +41,24 @@ class Prompt(QWidget):
"""The prompt widget shown in the statusbar.
The way in which multiple questions are handled deserves some explanation.
If a question is blocking, we *need* to ask it immediately, and can't wait
for previous questions to finish. We could theoretically ask a blocking
question inside of another blocking one, so in ask_question we simply save
the current prompt state on the stack, let the user answer the *most
recent* question, and then restore the previous state.
With a non-blocking question, things are a bit easier. We simply add it to
self._queue if we're still busy handling another question, since it can be
answered at any time.
In either case, as soon as we finished handling a question, we call
_pop_later() which schedules a _pop to ask the next question in _queue. We
schedule it rather than doing it immediately because then the order of how
things happen is clear, e.g. on_mode_left can't happen after we already set
up the *new* question.
Attributes:
question: A Question object with the question to be asked to the user.
_loops: A list of local EventLoops to spin in when blocking.
@ -124,6 +142,9 @@ class Prompt(QWidget):
Return:
The mode which should be entered.
Raise:
ValueError if the set PromptMode is invalid.
"""
if self.question.mode == PromptMode.yesno:
if self.question.default is None:
@ -236,14 +257,11 @@ class Prompt(QWidget):
Args:
question: The Question object to ask.
blocking: If True, _spin is called and the result is returned.
blocking: If True, this function blocks and returns the result.
Return:
The answer of the user when blocking=True.
None if blocking=False.
Raise:
ValueError if the set PromptMode is invalid.
"""
logger.debug("Asking question {}, blocking {}, loops {}, queue "
"{}".format(question, blocking, self._loops, self._queue))
@ -251,7 +269,7 @@ class Prompt(QWidget):
if self._busy and not blocking:
# We got an async question, but we're already busy with one, so we
# just queue it up for later.
logger.debug("Adding to queue")
logger.debug("Adding {} to queue.".format(question))
self._queue.append(question)
return