Brian S. Stephan
4a2f650a33
now that we can override the styles in practice, we also need to only present what is possible in the HTML
48 lines
1.8 KiB
Python
48 lines
1.8 KiB
Python
"""Miscellaneous helper functions and whatnot."""
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import logging
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import markdown
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from flask import current_app as app
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from flask import make_response, render_template, request
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logger = logging.getLogger(__name__)
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def get_meta_str(md, key):
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"""Provide the page's (parsed in Markup obj md) metadata for the specified key, or '' if unset."""
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return " ".join(md.Meta.get(key)) if md.Meta.get(key) else ""
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def init_md():
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"""Initialize the Markdown parser.
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This used to done at the app level in __init__, but extensions like footnotes apparently
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assume the parser to only live for the length of parsing one document, and create double
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footnote ref links if the one parser sees the same document multiple times.
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"""
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# initialize markdown parser from config, but include
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# extensions our app depends on, like the meta extension
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return markdown.Markdown(extensions=app.config['MARKDOWN_EXTENSIONS'] + ['meta'],
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extension_configs=app.config['MARKDOWN_EXTENSION_CONFIGS'])
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def render(template_name_or_list, **context):
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"""Wrap Flask's render_template.
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* Determine the proper site theme to use in the template and provide it.
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"""
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page_styles = app.config['PAGE_STYLES']
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selected_style = request.args.get('style', None)
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if selected_style:
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user_style = selected_style
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else:
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user_style = request.cookies.get('user-style')
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logger.debug("user style cookie: %s", user_style)
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context['user_style'] = page_styles.get(user_style, page_styles.get(app.config['DEFAULT_PAGE_STYLE']))
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context['page_styles'] = page_styles
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resp = make_response(render_template(template_name_or_list, **context))
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if selected_style:
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resp.set_cookie('user-style', selected_style)
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return resp
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