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1 import os
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2
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3 import cherrypy
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4 from genshi.core import Stream
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5 from genshi.output import encode, get_serializer
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6 from genshi.template import Context, TemplateLoader
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7
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8 from geddit.lib import ajax
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9
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10 loader = TemplateLoader(
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11 os.path.join(os.path.dirname(__file__), '..', 'templates'),
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12 auto_reload=True
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13 )
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14
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15 def output(filename, method='html', encoding='utf-8', **options):
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16 """Decorator for exposed methods to specify what template the should use
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17 for rendering, and which serialization method and options should be
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18 applied.
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19 """
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20 def decorate(func):
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21 def wrapper(*args, **kwargs):
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22 cherrypy.thread_data.template = loader.load(filename)
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23 opt = options.copy()
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24 if not ajax.is_xhr() and method == 'html':
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25 opt.setdefault('doctype', 'html')
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26 serializer = get_serializer(method, **opt)
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27 stream = func(*args, **kwargs)
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28 if not isinstance(stream, Stream):
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29 return stream
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30 return encode(serializer(stream), method=serializer,
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31 encoding=encoding)
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32 return wrapper
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33 return decorate
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34
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35 def render(*args, **kwargs):
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36 """Function to render the given data to the template specified via the
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37 ``@output`` decorator.
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38 """
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39 if args:
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40 assert len(args) == 1, \
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41 'Expected exactly one argument, but got %r' % (args,)
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42 template = loader.load(args[0])
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43 else:
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44 template = cherrypy.thread_data.template
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45 ctxt = Context(url=cherrypy.url)
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46 ctxt.push(kwargs)
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47 return template.generate(ctxt)
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