def stylebooks(self):
"""enumerate"""
if not getattr(self, '_stylebooks', None):
self._stylebooks = filter(
lambda o: IChartStyleBook.providedBy(o),
self.context.objectValues()
)
return self._stylebooks
def can_paste_stylebooks(self):
if self.request.get('__cp', None) is not None:
if self.context.cb_dataValid():
oblist = self.context.cb_dataItems()
if oblist:
return all(
map(
lambda o: IChartStyleBook.providedBy(o),
oblist,
))
return False
def can_paste_stylebooks(self):
if self.request.get('__cp', None) is not None:
if self.context.cb_dataValid():
try:
oblist = self.context.cb_dataItems()
if oblist:
return all(
map(
lambda o: IChartStyleBook.providedBy(o),
oblist,
)
)
except KeyError:
pass # object(s) in clipboard subsequently deleted
return False