To allow scrolling in Safari mobile, we set the content of text_view_comments frame in a jQuery UI layout.
So the automated scrolling operations in c_sync.js must be adjustable to the right part to scroll.
Also, if a comment have to be shown outside of the current viewport, we scroll the correct part to that viewport
and then set the comment top Y offset to juste what it needs to avoid the "Add comment" button after scrolling
operation.
If not in Safari mobile, we add an offset here to avoid comment to display under the "Add comment" button.
from django.core.cache import cache
from hashlib import sha1
from django.conf import settings
# adapted [to django] from http://code.activestate.com/recipes/325205/
def dj_memoize(f):
def g(*args, **kwargs):
key = sha1( str((settings.SITE_URL, f.__name__, f, tuple(args), frozenset(kwargs.items())) )).hexdigest()
val = cache.get(key)
if not val:
val = f(*args, **kwargs)
cache.set(key,val)
return val
return g
# adapted from http://code.activestate.com/recipes/496879/
# decorator with LRU policy
# changed :
# - default limit is 100
# - store sha1 of key (shorter)
import cPickle, hashlib
def memoize(function, limit=100):
if isinstance(function, int):
def memoize_wrapper(f):
return memoize(f, function)
return memoize_wrapper
dict = {}
list = []
def memoize_wrapper(*args, **kwargs):
key = hashlib.sha1(cPickle.dumps((args, kwargs))).digest()
try:
list.append(list.pop(list.index(key)))
except ValueError:
dict[key] = function(*args, **kwargs)
list.append(key)
if limit is not None and len(list) > limit:
del dict[list.pop(0)]
return dict[key]
memoize_wrapper._memoize_dict = dict
memoize_wrapper._memoize_list = list
memoize_wrapper._memoize_limit = limit
memoize_wrapper._memoize_origfunc = function
memoize_wrapper.func_name = function.func_name
return memoize_wrapper