%PDF-
%PDF-
Mini Shell
Mini Shell
#!/usr/bin/env python3
__license__ = 'GPL v3'
__copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
import copy
from lxml import html, etree
from lxml.html.builder import HTML, HEAD, TITLE, STYLE, DIV, BODY, \
STRONG, BR, SPAN, A, HR, UL, LI, H2, H3, IMG, P as PT, \
TABLE, TD, TR
from calibre import strftime, isbytestring
def attrs(*args, **kw):
rescale = kw.pop('rescale', None)
if rescale is not None:
kw['data-calibre-rescale'] = str(rescale)
if args:
kw['class'] = ' '.join(args)
return kw
# Regular templates
class Template:
IS_HTML = True
def __init__(self, lang=None):
self.html_lang = lang
def generate(self, *args, **kwargs):
if 'style' not in kwargs:
kwargs['style'] = ''
for key in kwargs.keys():
if isbytestring(kwargs[key]):
kwargs[key] = kwargs[key].decode('utf-8', 'replace')
if kwargs[key] is None:
kwargs[key] = ''
args = list(args)
for i in range(len(args)):
if isbytestring(args[i]):
args[i] = args[i].decode('utf-8', 'replace')
if args[i] is None:
args[i] = ''
self._generate(*args, **kwargs)
return self
def render(self, *args, **kwargs):
if self.IS_HTML:
return html.tostring(self.root, encoding='utf-8',
include_meta_content_type=True, pretty_print=True)
return etree.tostring(self.root, encoding='utf-8', xml_declaration=True,
pretty_print=True)
class EmbeddedContent(Template):
def _generate(self, article, style=None, extra_css=None):
content = article.content if article.content else ''
summary = article.summary if article.summary else ''
text = content if len(content) > len(summary) else summary
head = HEAD(TITLE(article.title))
if style:
head.append(STYLE(style, type='text/css'))
if extra_css:
head.append(STYLE(extra_css, type='text/css'))
if isbytestring(text):
text = text.decode('utf-8', 'replace')
elements = html.fragments_fromstring(text)
self.root = HTML(head,
BODY(H2(article.title), DIV()))
div = self.root.find('body').find('div')
if elements and isinstance(elements[0], str):
div.text = elements[0]
elements = list(elements)[1:]
for elem in elements:
if hasattr(elem, 'getparent'):
elem.getparent().remove(elem)
else:
elem = SPAN(elem)
div.append(elem)
class IndexTemplate(Template):
def _generate(self, title, masthead, datefmt, feeds, extra_css=None, style=None):
self.IS_HTML = False
date = strftime(datefmt)
head = HEAD(TITLE(title))
if style:
head.append(STYLE(style, type='text/css'))
if extra_css:
head.append(STYLE(extra_css, type='text/css'))
ul = UL(attrs('calibre_feed_list'))
for i, feed in enumerate(feeds):
if len(feed):
li = LI(A(feed.title, attrs('feed', rescale=120,
href='feed_%d/index.html'%i)), id='feed_%d'%i)
ul.append(li)
div = DIV(
PT(IMG(src=masthead,alt="masthead"),style='text-align:center'),
PT(date, style='text-align:right'),
ul,
attrs(rescale=100))
self.root = HTML(head, BODY(div))
if self.html_lang:
self.root.set('lang', self.html_lang)
class FeedTemplate(Template):
def get_navbar(self, f, feeds, top=True):
if len(feeds) < 2:
return DIV()
navbar = DIV('| ', attrs('calibre_navbar', rescale=70,
style='text-align:center'))
if not top:
hr = HR()
navbar.append(hr)
navbar.text = None
hr.tail = '| '
if f+1 < len(feeds):
link = A(_('Next section'), href='../feed_%d/index.html'%(f+1))
link.tail = ' | '
navbar.append(link)
link = A(_('Main menu'), href="../index.html")
link.tail = ' | '
navbar.append(link)
if f > 0:
link = A(_('Previous section'), href='../feed_%d/index.html'%(f-1))
link.tail = ' |'
navbar.append(link)
if top:
navbar.append(HR())
return navbar
def _generate(self, f, feeds, cutoff, extra_css=None, style=None):
from calibre.utils.cleantext import clean_xml_chars
feed = feeds[f]
head = HEAD(TITLE(feed.title))
if style:
head.append(STYLE(style, type='text/css'))
if extra_css:
head.append(STYLE(extra_css, type='text/css'))
body = BODY()
body.append(self.get_navbar(f, feeds))
div = DIV(
H2(feed.title,
attrs('calibre_feed_title', rescale=160)),
attrs(rescale=100)
)
body.append(div)
if getattr(feed, 'image', None):
div.append(DIV(IMG(
alt=feed.image_alt if feed.image_alt else '',
src=feed.image_url
),
attrs('calibre_feed_image')))
if getattr(feed, 'description', None):
d = DIV(clean_xml_chars(feed.description), attrs('calibre_feed_description', rescale=80))
d.append(BR())
div.append(d)
ul = UL(attrs('calibre_article_list'))
for i, article in enumerate(feed.articles):
if not getattr(article, 'downloaded', False):
continue
li = LI(
A(article.title, attrs('article', rescale=120,
href=article.url)),
SPAN(article.formatted_date, attrs('article_date')),
attrs(rescale=100, id='article_%d'%i,
style='padding-bottom:0.5em')
)
if article.summary:
li.append(DIV(clean_xml_chars(cutoff(article.text_summary)),
attrs('article_description', rescale=70)))
ul.append(li)
div.append(ul)
div.append(self.get_navbar(f, feeds, top=False))
self.root = HTML(head, body)
if self.html_lang:
self.root.set('lang', self.html_lang)
class NavBarTemplate(Template):
def _generate(self, bottom, feed, art, number_of_articles_in_feed,
two_levels, url, __appname__, prefix='', center=True,
extra_css=None, style=None):
head = HEAD(TITLE('navbar'))
if style:
head.append(STYLE(style, type='text/css'))
if extra_css:
head.append(STYLE(extra_css, type='text/css'))
if prefix and not prefix.endswith('/'):
prefix += '/'
align = 'center' if center else 'left'
navbar = DIV(attrs('calibre_navbar', rescale=70,
style='text-align:'+align))
if bottom:
if not url.startswith('file://'):
navbar.append(HR())
text = 'This article was downloaded by '
p = PT(text, STRONG(__appname__), A(url, href=url, rel='calibre-downloaded-from'),
style='text-align:left; max-width: 100%; overflow: hidden;')
p[0].tail = ' from '
navbar.append(p)
navbar.append(BR())
navbar.append(BR())
else:
next_art = 'feed_%d'%(feed+1) if art == number_of_articles_in_feed - 1 \
else 'article_%d'%(art+1)
up = '../..' if art == number_of_articles_in_feed - 1 else '..'
href = '%s%s/%s/index.html'%(prefix, up, next_art)
navbar.text = '| '
navbar.append(A(_('Next'), href=href))
href = '%s../index.html#article_%d'%(prefix, art)
next(navbar.iterchildren(reversed=True)).tail = ' | '
navbar.append(A(_('Section menu'), href=href))
href = '%s../../index.html#feed_%d'%(prefix, feed)
next(navbar.iterchildren(reversed=True)).tail = ' | '
navbar.append(A(_('Main menu'), href=href))
if art > 0 and not bottom:
href = '%s../article_%d/index.html'%(prefix, art-1)
next(navbar.iterchildren(reversed=True)).tail = ' | '
navbar.append(A(_('Previous'), href=href))
next(navbar.iterchildren(reversed=True)).tail = ' | '
if not bottom:
navbar.append(HR())
self.root = HTML(head, BODY(navbar))
# Touchscreen templates
class TouchscreenIndexTemplate(Template):
def _generate(self, title, masthead, datefmt, feeds, extra_css=None, style=None):
self.IS_HTML = False
date = '{}, {} {}, {}'.format(strftime('%A'), strftime('%B'), strftime('%d').lstrip('0'), strftime('%Y'))
masthead_p = etree.Element("p")
masthead_p.set("style","text-align:center")
masthead_img = etree.Element("img")
masthead_img.set("src",masthead)
masthead_img.set("alt","masthead")
masthead_p.append(masthead_img)
head = HEAD(TITLE(title))
if style:
head.append(STYLE(style, type='text/css'))
if extra_css:
head.append(STYLE(extra_css, type='text/css'))
toc = TABLE(attrs('toc'),width="100%",border="0",cellpadding="3px")
for i, feed in enumerate(feeds):
if len(feed):
tr = TR()
tr.append(TD(attrs(rescale=120), A(feed.title, href='feed_%d/index.html'%i)))
tr.append(TD('%s' % len(feed.articles), style="text-align:right"))
toc.append(tr)
div = DIV(
masthead_p,
H3(attrs('publish_date'),date),
DIV(attrs('divider')),
toc)
self.root = HTML(head, BODY(div))
if self.html_lang:
self.root.set('lang', self.html_lang)
class TouchscreenFeedTemplate(Template):
def _generate(self, f, feeds, cutoff, extra_css=None, style=None):
from calibre.utils.cleantext import clean_xml_chars
def trim_title(title,clip=18):
if len(title)>clip:
tokens = title.split(' ')
new_title_tokens = []
new_title_len = 0
if len(tokens[0]) > clip:
return tokens[0][:clip] + '...'
for token in tokens:
if len(token) + new_title_len < clip:
new_title_tokens.append(token)
new_title_len += len(token)
else:
new_title_tokens.append('...')
title = ' '.join(new_title_tokens)
break
return title
self.IS_HTML = False
feed = feeds[f]
# Construct the navbar
navbar_t = TABLE(attrs('touchscreen_navbar'))
navbar_tr = TR()
# Previous Section
link = ''
if f > 0:
link = A(attrs('feed_link'),
trim_title(feeds[f-1].title),
href='../feed_%d/index.html' % int(f-1))
navbar_tr.append(TD(attrs('feed_prev'),link))
# Up to Sections
link = A(_('Sections'), href="../index.html")
navbar_tr.append(TD(attrs('feed_up'),link))
# Next Section
link = ''
if f < len(feeds)-1:
link = A(attrs('feed_link'),
trim_title(feeds[f+1].title),
href='../feed_%d/index.html' % int(f+1))
navbar_tr.append(TD(attrs('feed_next'),link))
navbar_t.append(navbar_tr)
top_navbar = navbar_t
bottom_navbar = copy.copy(navbar_t)
# print "\n%s\n" % etree.tostring(navbar_t, pretty_print=True)
# Build the page
head = HEAD(TITLE(feed.title))
if style:
head.append(STYLE(style, type='text/css'))
if extra_css:
head.append(STYLE(extra_css, type='text/css'))
body = BODY()
div = DIV(
top_navbar,
H2(feed.title, attrs('feed_title'))
)
body.append(div)
if getattr(feed, 'image', None):
div.append(DIV(IMG(
alt=feed.image_alt if feed.image_alt else '',
src=feed.image_url
),
attrs('calibre_feed_image')))
if getattr(feed, 'description', None):
d = DIV(clean_xml_chars(feed.description), attrs('calibre_feed_description', rescale=80))
d.append(BR())
div.append(d)
for i, article in enumerate(feed.articles):
if not getattr(article, 'downloaded', False):
continue
div_td = DIV(attrs('article_summary'),
A(article.title, attrs('summary_headline',rescale=120,
href=article.url)))
if article.author:
div_td.append(DIV(article.author,
attrs('summary_byline', rescale=100)))
if article.summary:
div_td.append(DIV(cutoff(article.text_summary),
attrs('summary_text', rescale=100)))
div.append(div_td)
div.append(bottom_navbar)
self.root = HTML(head, body)
if self.html_lang:
self.root.set('lang', self.html_lang)
class TouchscreenNavBarTemplate(Template):
def _generate(self, bottom, feed, art, number_of_articles_in_feed,
two_levels, url, __appname__, prefix='', center=True,
extra_css=None, style=None):
head = HEAD(TITLE('navbar'))
if style:
head.append(STYLE(style, type='text/css'))
if extra_css:
head.append(STYLE(extra_css, type='text/css'))
navbar = DIV()
navbar_t = TABLE(attrs('touchscreen_navbar'))
navbar_tr = TR()
if bottom and not url.startswith('file://'):
navbar.append(HR())
text = 'This article was downloaded by '
p = PT(text, STRONG(__appname__), A(url, href=url, rel='calibre-downloaded-from'),
style='text-align:left; max-width: 100%; overflow: hidden;')
p[0].tail = ' from '
navbar.append(p)
navbar.append(BR())
# | Previous
if art > 0:
link = A(attrs('article_link'),_('Previous'),href='%s../article_%d/index.html'%(prefix, art-1))
navbar_tr.append(TD(attrs('article_prev'),link))
else:
navbar_tr.append(TD(attrs('article_prev'),''))
# | Articles | Sections |
link = A(attrs('articles_link'),_('Articles'), href='%s../index.html#article_%d'%(prefix, art))
navbar_tr.append(TD(attrs('article_articles_list'),link))
link = A(attrs('sections_link'),_('Sections'), href='%s../../index.html#feed_%d'%(prefix, feed))
navbar_tr.append(TD(attrs('article_sections_list'),link))
# | Next
next_art = 'feed_%d'%(feed+1) if art == number_of_articles_in_feed - 1 \
else 'article_%d'%(art+1)
up = '../..' if art == number_of_articles_in_feed - 1 else '..'
link = A(attrs('article_link'), _('Next'), href='%s%s/%s/index.html'%(prefix, up, next_art))
navbar_tr.append(TD(attrs('article_next'),link))
navbar_t.append(navbar_tr)
navbar.append(navbar_t)
# print "\n%s\n" % etree.tostring(navbar, pretty_print=True)
self.root = HTML(head, BODY(navbar))
Zerion Mini Shell 1.0