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"""HTML formatting drivers for ureports.
:copyright:
2004-2008 `LOGILAB S.A. <http://www.logilab.fr>`_ (Paris, FRANCE),
all rights reserved.
:contact:
http://www.logilab.org/project/logilab-common --
mailto:python-projects@logilab.org
:license:
`General Public License version 2
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>`_
"""
__docformat__ = "restructuredtext en"
from cgi import escape
from logilab.common.ureports import BaseWriter
class HTMLWriter(BaseWriter):
"""format layouts as HTML"""
def __init__(self, snippet=None):
super(HTMLWriter, self).__init__()
self.snippet = snippet
def handle_attrs(self, layout):
"""get an attribute string from layout member attributes"""
attrs = ''
klass = getattr(layout, 'klass', None)
if klass:
attrs += ' class="%s"' % klass
nid = getattr(layout, 'id', None)
if nid:
attrs += ' id="%s"' % nid
return attrs
def begin_format(self, layout):
"""begin to format a layout"""
super(HTMLWriter, self).begin_format(layout)
if self.snippet is None:
self.writeln('<html>')
self.writeln('<body>')
def end_format(self, layout):
"""finished to format a layout"""
if self.snippet is None:
self.writeln('</body>')
self.writeln('</html>')
def visit_section(self, layout):
"""display a section as html, using div + h[section level]"""
self.section += 1
self.writeln('<div%s>' % self.handle_attrs(layout))
self.format_children(layout)
self.writeln('</div>')
self.section -= 1
def visit_title(self, layout):
"""display a title using <hX>"""
self.write('<h%s%s>' % (self.section, self.handle_attrs(layout)))
self.format_children(layout)
self.writeln('</h%s>' % self.section)
def visit_table(self, layout):
"""display a table as html"""
self.writeln('<table%s>' % self.handle_attrs(layout))
table_content = self.get_table_content(layout)
for i in range(len(table_content)):
row = table_content[i]
if i == 0 and layout.rheaders:
self.writeln('<tr class="header">')
elif i+1 == len(table_content) and layout.rrheaders:
self.writeln('<tr class="header">')
else:
self.writeln('<tr class="%s">' % (i%2 and 'even' or 'odd'))
for j in range(len(row)):
cell = row[j] or ' '
if (layout.rheaders and i == 0) or \
(layout.cheaders and j == 0) or \
(layout.rrheaders and i+1 == len(table_content)) or \
(layout.rcheaders and j+1 == len(row)):
self.writeln('<th>%s</th>' % cell)
else:
self.writeln('<td>%s</td>' % cell)
self.writeln('</tr>')
self.writeln('</table>')
def visit_list(self, layout):
"""display a list as html"""
self.writeln('<ul%s>' % self.handle_attrs(layout))
for row in list(self.compute_content(layout)):
self.writeln('<li>%s</li>' % row)
self.writeln('</ul>')
def visit_paragraph(self, layout):
"""display links (using <p>)"""
self.write('<p>')
self.format_children(layout)
self.write('</p>')
def visit_span(self, layout):
"""display links (using <p>)"""
self.write('<span%s>' % self.handle_attrs(layout))
self.format_children(layout)
self.write('</span>')
def visit_link(self, layout):
"""display links (using <a>)"""
self.write(' <a href="%s"%s>%s</a>' % (layout.url,
self.handle_attrs(layout),
layout.label))
def visit_verbatimtext(self, layout):
"""display verbatim text (using <pre>)"""
self.write('<pre>')
self.write(layout.data.replace('&', '&').replace('<', '<'))
self.write('</pre>')
def visit_text(self, layout):
"""add some text"""
data = layout.data
if layout.escaped:
data = data.replace('&', '&').replace('<', '<')
self.write(data)
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