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# coding=utf-8
# Hint.instantiate takes a hint object (dictionary) to be sent to the client
# and sets additional fields based on previously sent hints.
# Simple hint: don't do anything on instantiation.
class Hint(object):
hint_type = 'static'
def __init__(self, name):
self.name = name
def instantiate(self, hint, prev_hints):
pass
# Hint sequence: static type, but each time a hint is sent, increase the
# message index until the last message is reached, then repeat that.
# NOTE not used, check if we can remove this
class HintSequence(Hint):
def __init__(self, name, length):
self.name = name
self.length = length
def instantiate(self, hint, prev_hints):
index = 0
for prev_hint in prev_hints:
if prev_hint['id'] == self.name:
index = max(index, prev_hint['indices'][0]+1)
index = min(index, self.length-1)
hint['indices'] = [index]
# Popup hints: don't do anything on instantiation.
class HintPopup(Hint):
hint_type = 'popup'
def __init__(self, name, style=None):
self.name = name
self.style = style
def instantiate(self, hint, prev_hints):
if self.style is not None:
hint['style'] = self.style
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