def get_updated_css(stylepath, current_style, css_template):
"""
Return the style json and the complete css if it is valid and has been
changed since last update, otherwise return None.
current_style - a dict with keys to format() the template
css_template - a format()-ready string that matches current_style
"""
# Copy in the default theme if a customized doesn't exist
if not os.path.exists(stylepath):
defaultcss = common.local_path('defaultstyle.json')
shutil.copyfile(defaultcss, stylepath)
try:
style = common.read_json(stylepath)
except:
print('Invalid style config: unable to parse it as json')
return
# Only update if something's changed
if style != current_style:
try:
css = css_template.format(**style)
except KeyError:
print('Invalid style config: key missing')
return
else:
return style, common.parse_stylesheet(css)
return
def read_config(self):
# config
configfile = os.path.join(self.configpath, 'kalpana-chapters.conf')
make_sure_config_exists(configfile, os.path.join(self.pluginpath, 'default_config.json'))
self.sidebar.settings = read_json(configfile)
# stylesheet
cssfile = os.path.join(self.configpath, 'kalpana-chapters.css')
make_sure_config_exists(cssfile, os.path.join(self.pluginpath, 'default_theme.css'))
self.sidebar.setStyleSheet(parse_stylesheet(read_file(cssfile)))