# -*- coding: utf-8 -*-
# Copyright (C) 2010-2019 RhodeCode GmbH
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, version 3
# (only), as published by the Free Software Foundation.
#
# 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 Affero General Public License
# along with this program. If not, see .
#
# This program is dual-licensed. If you wish to learn more about the
# RhodeCode Enterprise Edition, including its added features, Support services,
# and proprietary license terms, please see https://rhodecode.com/licenses/
import re
from webhelpers.paginate import Page as _Page
from webhelpers.paginate import PageURL
from webhelpers2.html import literal, HTML
class Page(_Page):
"""
Custom pager to match rendering style with paginator
"""
def _get_pos(self, cur_page, max_page, items):
edge = (items / 2) + 1
if (cur_page <= edge):
radius = max(items / 2, items - cur_page)
elif (max_page - cur_page) < edge:
radius = (items - 1) - (max_page - cur_page)
else:
radius = items / 2
left = max(1, (cur_page - (radius)))
right = min(max_page, cur_page + (radius))
return left, cur_page, right
def _range(self, regexp_match):
"""
Return range of linked pages (e.g. '1 2 [3] 4 5 6 7 8').
Arguments:
regexp_match
A "re" (regular expressions) match object containing the
radius of linked pages around the current page in
regexp_match.group(1) as a string
This function is supposed to be called as a callable in
re.sub.
"""
radius = int(regexp_match.group(1))
# Compute the first and last page number within the radius
# e.g. '1 .. 5 6 [7] 8 9 .. 12'
# -> leftmost_page = 5
# -> rightmost_page = 9
leftmost_page, _cur, rightmost_page = self._get_pos(self.page,
self.last_page,
(radius * 2) + 1)
nav_items = []
# Create a link to the first page (unless we are on the first page
# or there would be no need to insert '..' spacers)
if self.page != self.first_page and self.first_page < leftmost_page:
nav_items.append(self._pagerlink(self.first_page, self.first_page))
# Insert dots if there are pages between the first page
# and the currently displayed page range
if leftmost_page - self.first_page > 1:
# Wrap in a SPAN tag if nolink_attr is set
text = '..'
if self.dotdot_attr:
text = HTML.span(c=text, **self.dotdot_attr)
nav_items.append(text)
for thispage in xrange(leftmost_page, rightmost_page + 1):
# Hilight the current page number and do not use a link
if thispage == self.page:
text = '%s' % (thispage,)
# Wrap in a SPAN tag if nolink_attr is set
if self.curpage_attr:
text = HTML.span(c=text, **self.curpage_attr)
nav_items.append(text)
# Otherwise create just a link to that page
else:
text = '%s' % (thispage,)
nav_items.append(self._pagerlink(thispage, text))
# Insert dots if there are pages between the displayed
# page numbers and the end of the page range
if self.last_page - rightmost_page > 1:
text = '..'
# Wrap in a SPAN tag if nolink_attr is set
if self.dotdot_attr:
text = HTML.span(c=text, **self.dotdot_attr)
nav_items.append(text)
# Create a link to the very last page (unless we are on the last
# page or there would be no need to insert '..' spacers)
if self.page != self.last_page and rightmost_page < self.last_page:
nav_items.append(self._pagerlink(self.last_page, self.last_page))
## prerender links
#_page_link = url.current()
#nav_items.append(literal('' % (_page_link, str(int(self.page)+1))))
#nav_items.append(literal('' % (_page_link, str(int(self.page)+1))))
return self.separator.join(nav_items)
def pager(self, format='~2~', page_param='page', partial_param='partial',
show_if_single_page=False, separator=' ', onclick=None,
symbol_first='<<', symbol_last='>>',
symbol_previous='<', symbol_next='>',
link_attr={'class': 'pager_link', 'rel': 'prerender'},
curpage_attr={'class': 'pager_curpage'},
dotdot_attr={'class': 'pager_dotdot'}, **kwargs):
self.curpage_attr = curpage_attr
self.separator = separator
self.pager_kwargs = kwargs
self.page_param = page_param
self.partial_param = partial_param
self.onclick = onclick
self.link_attr = link_attr
self.dotdot_attr = dotdot_attr
# Don't show navigator if there is no more than one page
if self.page_count == 0 or (self.page_count == 1 and not show_if_single_page):
return ''
from string import Template
# Replace ~...~ in token format by range of pages
result = re.sub(r'~(\d+)~', self._range, format)
# Interpolate '%' variables
result = Template(result).safe_substitute({
'first_page': self.first_page,
'last_page': self.last_page,
'page': self.page,
'page_count': self.page_count,
'items_per_page': self.items_per_page,
'first_item': self.first_item,
'last_item': self.last_item,
'item_count': self.item_count,
'link_first': self.page > self.first_page and \
self._pagerlink(self.first_page, symbol_first) or '',
'link_last': self.page < self.last_page and \
self._pagerlink(self.last_page, symbol_last) or '',
'link_previous': self.previous_page and \
self._pagerlink(self.previous_page, symbol_previous) \
or HTML.span(symbol_previous, class_="pg-previous disabled"),
'link_next': self.next_page and \
self._pagerlink(self.next_page, symbol_next) \
or HTML.span(symbol_next, class_="pg-next disabled")
})
return literal(result)