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Only parse the default css stylesheet on demand

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This commit is contained in:
Kovid Goyal 2010-07-02 17:55:43 -06:00
parent e2072ae005
commit 539a4d0355
1 changed files with 11 additions and 4 deletions
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15
src/calibre/ebooks/oeb/stylizer.py
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@ -25,10 +25,17 @@ from calibre.ebooks.oeb.base import XHTML, XHTML_NS, CSS_MIME, OEB_STYLES
from calibre.ebooks.oeb.base import XPNSMAP, xpath, urlnormalize from calibre.ebooks.oeb.base import XPNSMAP, xpath, urlnormalize
from calibre.ebooks.oeb.profile import PROFILES from calibre.ebooks.oeb.profile import PROFILES
html_css = open(P('templates/html.css'), 'rb').read() _html_css_stylesheet = None
def html_css_stylesheet():
global _html_css_stylesheet
if _html_css_stylesheet is None:
html_css = open(P('templates/html.css'), 'rb').read()
_html_css_stylesheet = cssutils.parseString(html_css)
_html_css_stylesheet.namespaces['h'] = XHTML_NS
return _html_css_stylesheet
XHTML_CSS_NAMESPACE = '@namespace "%s";\n' % XHTML_NS XHTML_CSS_NAMESPACE = '@namespace "%s";\n' % XHTML_NS
HTML_CSS_STYLESHEET = cssutils.parseString(html_css)
HTML_CSS_STYLESHEET.namespaces['h'] = XHTML_NS
INHERITED = set(['azimuth', 'border-collapse', 'border-spacing', INHERITED = set(['azimuth', 'border-collapse', 'border-spacing',
'caption-side', 'color', 'cursor', 'direction', 'elevation', 'caption-side', 'color', 'cursor', 'direction', 'elevation',
@ -120,7 +127,7 @@ class Stylizer(object):
item = oeb.manifest.hrefs[path] item = oeb.manifest.hrefs[path]
basename = os.path.basename(path) basename = os.path.basename(path)
cssname = os.path.splitext(basename)[0] + '.css' cssname = os.path.splitext(basename)[0] + '.css'
stylesheets = [HTML_CSS_STYLESHEET] stylesheets = [html_css_stylesheet()]
head = xpath(tree, '/h:html/h:head') head = xpath(tree, '/h:html/h:head')
if head: if head:
head = head[0] head = head[0]