mirror of
https://github.com/janeczku/calibre-web
synced 2024-11-16 14:54:55 +00:00
77 lines
3.0 KiB
Python
77 lines
3.0 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
|
|
# Copyright (C) 2018-2019 OzzieIsaacs, cervinko, jkrehm, bodybybuddha, ok11,
|
|
# andy29485, idalin, Kyosfonica, wuqi, Kennyl, lemmsh,
|
|
# falgh1, grunjol, csitko, ytils, xybydy, trasba, vrabe,
|
|
# ruben-herold, marblepebble, JackED42, SiphonSquirrel,
|
|
# apetresc, nanu-c, mutschler
|
|
#
|
|
# 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 3 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, see <http://www.gnu.org/licenses/>.
|
|
|
|
from __future__ import division, print_function, unicode_literals
|
|
from math import ceil
|
|
|
|
|
|
# simple pagination for the feed
|
|
class Pagination(object):
|
|
def __init__(self, page, per_page, total_count):
|
|
self.page = int(page)
|
|
self.per_page = int(per_page)
|
|
self.total_count = int(total_count)
|
|
|
|
@property
|
|
def next_offset(self):
|
|
return int(self.page * self.per_page)
|
|
|
|
@property
|
|
def previous_offset(self):
|
|
return int((self.page - 2) * self.per_page)
|
|
|
|
@property
|
|
def last_offset(self):
|
|
last = int(self.total_count) - int(self.per_page)
|
|
if last < 0:
|
|
last = 0
|
|
return int(last)
|
|
|
|
@property
|
|
def pages(self):
|
|
return int(ceil(self.total_count / float(self.per_page)))
|
|
|
|
@property
|
|
def has_prev(self):
|
|
return self.page > 1
|
|
|
|
@property
|
|
def has_next(self):
|
|
return self.page < self.pages
|
|
|
|
# right_edge: last right_edges count of all pages are shown as number, means, if 10 pages are paginated -> 9,10 shwn
|
|
# left_edge: first left_edges count of all pages are shown as number -> 1,2 shwn
|
|
# left_current: left_current count below current page are shown as number, means if current page 5 -> 3,4 shwn
|
|
# left_current: right_current count above current page are shown as number, means if current page 5 -> 6,7 shwn
|
|
def iter_pages(self, left_edge=2, left_current=2,
|
|
right_current=4, right_edge=2):
|
|
last = 0
|
|
left_current = self.page - left_current - 1
|
|
right_current = self.page + right_current + 1
|
|
right_edge = self.pages - right_edge
|
|
for num in range(1, (self.pages + 1)):
|
|
if num <= left_edge or (left_current < num < right_current) or num > right_edge:
|
|
if last + 1 != num:
|
|
yield None
|
|
yield num
|
|
last = num
|