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html.py
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html.py
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import os
from jinja2 import Environment, PackageLoader
from lxml import objectify, html
from lxml.objectify import E
def deannotate(fn):
def wrap(*args, **kwargs):
if 'tostring' in kwargs:
tostring = kwargs.pop('tostring')
else:
tostring = False
obj = fn(*args, **kwargs)
objectify.deannotate(obj, cleanup_namespaces=True)
if tostring:
return html.tostring(obj)
return obj
return wrap
class HTML(object):
def __init__(self, package_name='data_server', folder='templates'):
self.env = Environment(loader=PackageLoader(package_name, folder))
self.html = E.html()
def init(self, title=None, style=None, **body):
self.html = E.html(E.head(), E.body(E.div(), **body))
self.html.body.div.set('class', 'container')
if title:
self.html.head.append(E.title(title))
if style:
self.html.head.append(E.style(style, type='text/css'))
@staticmethod
def from_element(html):
return objectify.XML(html)
def from_html(self, html):
self.html = self.from_element(html)
@deannotate
def generate_table(self, col, **kwargs):
table = E.table(**kwargs)
for attr, value in col:
table.append(E.tr(E.td(value, **attr)))
return table
@deannotate
def element(self, name, *args, **kwargs):
klass = None
if 'class_' in kwargs:
klass = kwargs.pop('class_')
if 'klass' in kwargs:
klass = kwargs.pop('klass')
element = getattr(E, name)(*args, **kwargs)
if klass:
element.set('class', klass)
return element
def to_html(self):
objectify.deannotate(self.html, cleanup_namespaces=True)
return html.tostring(self.html, pretty_print=True)
def render_template(self, name, **kwargs):
return self.env.get_template(name).render(**kwargs)