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     TXT_LEGACY_TOP_MARGIN = 1
  13     TXT_LEGACY_BOTTOM_MARGIN = 0
  14
  15     EPUB_TAG = HTML_TAG = 'div'
  16     EPUB_CLASS = 'verse'
  17     HTML_CLASS = 'wl verse'
  18
  19     NUMBERING = 'main'
  20
  21     @property
  22     def meta(self):
  23         if hasattr(self, 'stanza'):
  24             return self.stanza.meta
  25         return super(Wers, self).meta
  26
  27     def _epub_build_inner(self, builder):
  28         super()._epub_build_inner(builder)
  29         builder.push_text('''\u00a0''')
  30
  31     @property
  32     def has_visible_numbering(self):
  33         try:
  34             number = int(self.attrib['_visible_numbering'])
  35         except:
  36             return False
  37         return number == 1 or not(number % 5)
  38
  39     @property
  40     def is_stretched(self):
  41         return self.find('.//tab[@szer="*"]') is not None
  42
  43     def get_html_attr(self, builder):
  44         attr = super().get_html_attr(builder)
  45         if self.is_stretched:
  46             attr['class'] += ' verse-stretched'
  47         return attr
  48
  49     def _html_build_inner(self, builder):
  50         if self.is_stretched:
  51             builder.start_element('span')
  52         super()._html_build_inner(builder)
  53         if self.is_stretched:
  54             builder.end_element()