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# welco - multichannel request processing
# Copyright (C) 2018  Entr'ouvert
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from django.core.urlresolvers import reverse
from django.forms.utils import flatatt
from django.template.loader import render_to_string
from django.utils.encoding import force_text
from django.utils.html import conditional_escape
from django.utils.safestring import mark_safe
from django.utils.translation import get_language

import ckeditor.widgets

def ckeditor_render(self, name, value, attrs=None):
    if value is None:
        value = ''
    final_attrs = {'name': name}
    if getattr(self, 'attrs', None):
        final_attrs.update(self.attrs)
    if attrs:
        final_attrs.update(attrs)
    if 'filebrowserUploadUrl' not in self.config:
        self.config.setdefault('filebrowserUploadUrl', reverse('ckeditor_upload'))
    if 'filebrowserBrowseUrl' not in self.config:
        self.config.setdefault('filebrowserBrowseUrl', reverse('ckeditor_browse'))
    if not self.config.get('language'):
        self.config['language'] = get_language()

    # Force to text to evaluate possible lazy objects
    external_plugin_resources = [[force_text(a), force_text(b), force_text(c)] for a, b, c in self.external_plugin_resources]

    return mark_safe(render_to_string('ckeditor/widget.html', {
        'final_attrs': flatatt(final_attrs),
        'value': conditional_escape(force_text(value)),
        'id': final_attrs['id'],
        'config': ckeditor.widgets.json_encode(self.config),
        'external_plugin_resources' : ckeditor.widgets.json_encode(external_plugin_resources)
    }))

ckeditor.widgets.CKEditorWidget.render = ckeditor_render