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# coding=utf-8 # noqa: UP009
from lxml import etree
from ebooklib import epub
from ebooklib.plugins.base import BasePlugin
from ebooklib.utils import parse_html_string
class SamplePlugin(BasePlugin):
NAME = "Sample Plugin"
# Very useless but example of what can be done
def html_before_write(self, book, chapter):
if chapter.content is None:
return
try:
tree = parse_html_string(chapter.get_content())
except Exception:
return
root = tree.getroottree()
if len(root.find("body")) != 0:
body = tree.find("body")
for _link in body.xpath("//a[@class='test']"):
_link.set("href", "http://www.binarni.net/")
chapter.content = etree.tostring(tree, pretty_print=True, encoding="utf-8")
if __name__ == "__main__":
book = epub.EpubBook()
# add metadata
book.set_identifier("sample123456")
book.set_title("Sample book")
book.set_language("en")
book.add_author("Aleksandar Erkalovic")
# intro chapter
c1 = epub.EpubHtml(title="Introduction", file_name="intro.xhtml", lang="en")
c1.content = (
"""<html><head></head><body><h1>Introduction</h1>"""
"""<p>Introduction paragraph <a class="test">with a link</a> where i explain what is """
"""happening.</p></body></html>"""
)
# about chapter
c2 = epub.EpubHtml(title="About this book", file_name="about.xhtml")
c2.content = (
"""<html><head></head><body><h1>About this book</h1>"""
"""<p>Helou, this is my book! There are many books, but this one is mine.</p></body></html>"""
)
# add chapters to the book
book.add_item(c1)
book.add_item(c2)
# create table of contents
# - add section
# - add auto created links to chapters
book.toc = (epub.Link("intro.xhtml", "Introduction", "intro"), (epub.Section("Languages"), (c1, c2)))
# add navigation files
book.add_item(epub.EpubNcx())
book.add_item(epub.EpubNav())
# define css style
style = """
@namespace epub "http://www.idpf.org/2007/ops";
body {
font-family: Cambria, Liberation Serif, Bitstream Vera Serif, Georgia, Times, Times New Roman, serif;
}
h2 {
text-align: left;
text-transform: uppercase;
font-weight: 200;
}
ol {
list-style-type: none;
}
ol > li:first-child {
margin-top: 0.3em;
}
nav[epub|type~='toc'] > ol > li > ol {
list-style-type:square;
}
nav[epub|type~='toc'] > ol > li > ol > li {
margin-top: 0.3em;
}
"""
# add css file
nav_css = epub.EpubItem(uid="style_nav", file_name="style/nav.css", media_type="text/css", content=style)
book.add_item(nav_css)
# create spine
book.spine = ["nav", c1, c2]
opts = {"plugins": [SamplePlugin()]}
# create epub file
epub.write_epub("test.epub", book, opts)
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