src/librarian/elements/poetry/wers.py

   1 # This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
   2 # Copyright © Fundacja Wolne Lektury. See NOTICE for more information.
   3 #
   4 from ..base import WLElement
   5
   6
   7 class Wers(WLElement):
   8     STRIP = True
   9
  10     TXT_TOP_MARGIN = 1
  11     TXT_BOTTOM_MARGIN = 1
  12
  13     EPUB_TAG = HTML_TAG = 'div'
  14     EPUB_CLASS = 'verse'
  15     HTML_CLASS = 'wl verse'
  16
  17     NUMBERING = 'main'
  18
  19     @property
  20     def meta(self):
  21         if hasattr(self, 'stanza'):
  22             return self.stanza.meta
  23         return super(Wers, self).meta
  24
  25     def _epub_build_inner(self, builder):
  26         super()._epub_build_inner(builder)
  27         builder.push_text('''\u00a0''')
  28
  29     @property
  30     def has_visible_numbering(self):
  31         try:
  32             number = int(self.attrib['_visible_numbering'])
  33         except:
  34             return False
  35         return number == 1 or not(number % 5)
  36
  37     @property
  38     def is_stretched(self):
  39         return self.find('.//tab[@szer="*"]') is not None
  40
  41     def get_html_attr(self, builder):
  42         attr = super().get_html_attr(builder)
  43         if self.is_stretched:
  44             attr['class'] += ' verse-stretched'
  45         return attr
  46
  47     def _html_build_inner(self, builder):
  48         if self.is_stretched:
  49             builder.start_element('span')
  50         super()._html_build_inner(builder)
  51         if self.is_stretched:
  52             builder.end_element()