# -*- coding: utf-8 -*-
##
## This file is part of Invenio.
## Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 CERN.
##
## Invenio is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License as
## published by the Free Software Foundation; either version 2 of the
## License, or (at your option) any later version.
##
## Invenio is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""BibFormat element - Prints a link to BibEdit
"""
__revision__ = "$Id$"

from invenio.urlutils import create_html_link
from invenio.messages import gettext_set_language
from invenio.config import CFG_SITE_URL, CFG_SITE_RECORD
from invenio.bibedit_utils import user_can_edit_record_collection

def format_element(bfo, style):
    """
    Prints a link to BibEdit, if authorization is granted

    @param style: the CSS style to be applied to the link.
    """
    _ = gettext_set_language(bfo.lang)

    out = ""

    user_info = bfo.user_info
    if user_can_edit_record_collection(user_info, bfo.recID):
        linkattrd = {}
        if style != '':
            linkattrd['style'] = style
        out += create_html_link(CFG_SITE_URL +
               '/%s/edit/?ln=%s#state=edit&recid=%s' % (CFG_SITE_RECORD, bfo.lang, str(bfo.recID)),
               {},
               link_label=_("Edit This Record"),
               linkattrd=linkattrd)

    return out

def escape_values(bfo):
    """
    Called by BibFormat in order to check if output of this element
    should be escaped.
    """
    return 0
