Mercurial > genshi > mirror
comparison markup/plugin.py @ 4:49364e784c47 trunk
Added first stab of an implementation of the !TurboGears [http://www.turbogears.org/docs/plugins/template.html plugin API for template engines], and also a !TurboGears-based example using this plugin. Both written by Matt Good.
| author | cmlenz |
|---|---|
| date | Sat, 03 Jun 2006 12:31:58 +0000 |
| parents | |
| children | b4d17897d053 |
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| 3:518a8520a6e1 | 4:49364e784c47 |
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| 1 # -*- coding: utf-8 -*- | |
| 2 # | |
| 3 # Copyright (C) 2006 Mattew Good | |
| 4 # All rights reserved. | |
| 5 # | |
| 6 # This software is licensed as described in the file COPYING, which | |
| 7 # you should have received as part of this distribution. The terms | |
| 8 # are also available at http://trac.edgewall.com/license.html. | |
| 9 # | |
| 10 # This software consists of voluntary contributions made by many | |
| 11 # individuals. For the exact contribution history, see the revision | |
| 12 # history and logs, available at http://projects.edgewall.com/trac/. | |
| 13 | |
| 14 import os | |
| 15 from pkg_resources import resource_filename | |
| 16 | |
| 17 from markup.template import Context, Template, TemplateLoader | |
| 18 | |
| 19 | |
| 20 class TemplateEnginePlugin(object): | |
| 21 | |
| 22 def __init__(self, extra_vars_func=None, options=None): | |
| 23 if options is None: | |
| 24 options = {} | |
| 25 # TODO get loader_args from the options dict | |
| 26 | |
| 27 self.loader = TemplateLoader(auto_reload=True) | |
| 28 self.options = options | |
| 29 self.get_extra_vars = extra_vars_func | |
| 30 | |
| 31 def load_template(self, templatename): | |
| 32 """Find a template specified in python 'dot' notation.""" | |
| 33 divider = templatename.rfind('.') | |
| 34 if divider >= 0: | |
| 35 package = templatename[:divider] | |
| 36 basename = templatename[divider + 1:] + '.html' | |
| 37 fullpath = resource_filename(package, basename) | |
| 38 dirname, templatename = os.path.split(fullpath) | |
| 39 self.loader.search_path.append(dirname) # Kludge | |
| 40 | |
| 41 return self.loader.load(templatename) | |
| 42 | |
| 43 def render(self, info, format='html', fragment=False, template=None): | |
| 44 """Renders the template to a string using the provided info.""" | |
| 45 return self.transform(info, template).render(method=format) | |
| 46 | |
| 47 def transform(self, info, template): | |
| 48 "Render the output to Elements" | |
| 49 if not isinstance(template, Template): | |
| 50 template = self.load_template(template) | |
| 51 | |
| 52 data = {} | |
| 53 if self.get_extra_vars: | |
| 54 data.update(self.get_extra_vars()) | |
| 55 data.update(info) | |
| 56 | |
| 57 ctxt = Context(**data) | |
| 58 return template.generate(ctxt) |