0be4751c55
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@1035 fd906abe-77d9-0310-91a1-e0d9ade77398
95 lines
3.3 KiB
Python
95 lines
3.3 KiB
Python
#
|
|
# Copyright (c) 2006 Helmut Merz helmutm@cy55.de
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software
|
|
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
#
|
|
|
|
"""
|
|
Ordered container implementation.
|
|
|
|
$Id$
|
|
"""
|
|
|
|
from zope.app import zapi
|
|
from zope.app.container.ordered import OrderedContainer as BaseOrderedContainer
|
|
from zope.cachedescriptors.property import Lazy
|
|
from zope.app.container.browser.contents import JustContents
|
|
|
|
|
|
class OrderedContainerView(JustContents):
|
|
""" A view providing the necessary methods for moving sub-objects
|
|
within an ordered container.
|
|
"""
|
|
|
|
@Lazy
|
|
def url(self):
|
|
return zapi.absoluteURL(self.context, self.request)
|
|
|
|
@Lazy
|
|
def orderable(self):
|
|
return len(self.context) > 1
|
|
|
|
def checkMoveAction(self):
|
|
request = self.request
|
|
for var in request:
|
|
if var.startswith('move_'):
|
|
params = []
|
|
if 'delta' in request:
|
|
params.append('delta=' + request['delta'])
|
|
if 'ids' in request:
|
|
for id in request['ids']:
|
|
params.append('ids:list=' + id)
|
|
request.response.redirect('%s/%s?%s'
|
|
% (self.url, var, '&'.join(params)))
|
|
return True
|
|
return False
|
|
|
|
def moveDown(self, ids=[], delta=1):
|
|
self.context.updateOrder(
|
|
moveByDelta(self.context.keys(), ids, int(delta)))
|
|
self.request.response.redirect(self.url + '/contents.html')
|
|
|
|
def moveUp(self, ids=[], delta=1):
|
|
self.context.updateOrder(
|
|
moveByDelta(self.context.keys(), ids, -int(delta)))
|
|
self.request.response.redirect(self.url + '/contents.html')
|
|
|
|
def moveToBottom(self, ids=[]):
|
|
self.context.updateOrder(
|
|
moveByDelta(self.context.keys(), ids, len(self.context)))
|
|
self.request.response.redirect(self.url + '/contents.html')
|
|
|
|
def moveToTop(self, ids=[]):
|
|
self.context.updateOrder(
|
|
moveByDelta(self.context.keys(), ids, -len(self.context)))
|
|
self.request.response.redirect(self.url + '/contents.html')
|
|
|
|
|
|
def moveByDelta(objs, toMove, delta):
|
|
""" Return the list given by objs resorted in a way that the elements
|
|
of toMove (which must be in the objs list) have been moved by delta.
|
|
"""
|
|
result = [obj for obj in objs if obj not in toMove]
|
|
if delta < 0:
|
|
objs = list(reversed(objs))
|
|
result.reverse()
|
|
toMove = sorted(toMove, lambda x,y: cmp(objs.index(x), objs.index(y)))
|
|
for element in toMove:
|
|
newPos = min(len(result), objs.index(element) + abs(delta))
|
|
result.insert(newPos, element)
|
|
if delta < 0:
|
|
result.reverse()
|
|
return result
|
|
|