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widgets.py
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widgets.py
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import json
from django.forms.widgets import Media, Textarea
from django.urls import reverse
from django.utils.encoding import force_str
from django.utils.html import format_html
from djrichtextfield import settings
from djrichtextfield.sanitizer import SanitizerMixin
class RichTextWidget(SanitizerMixin, Textarea):
CSS_CLASS = 'djrichtextfield'
INIT_URL = 'djrichtextfield_init'
SETTINGS_ATTR = 'data-field-settings'
CONTAINER_CLASS = 'fieldBox'
PROFILE_KEY = 'profiles'
def __init__(self, attrs=None, field_settings=None, sanitizer=None):
defaults = {'class': self.CSS_CLASS}
if attrs:
if 'class' in attrs:
attrs['class'] = ' '.join([
attrs['class'],
defaults['class'],
])
defaults.update(attrs)
self.field_settings = field_settings or {}
super(RichTextWidget, self).__init__(defaults, sanitizer=sanitizer)
@property
def media(self):
js = []
js.extend(settings.CONFIG['js'])
js.append(reverse(self.INIT_URL))
return Media(js=js, css=settings.CONFIG['css'])
def get_field_settings(self):
"""
Get the field settings, if the configured setting is a string
try to get a 'profile' from the global config.
"""
field_settings = None
if self.field_settings:
if isinstance(self.field_settings, str):
profiles = settings.CONFIG.get(self.PROFILE_KEY, {})
field_settings = profiles.get(self.field_settings)
else:
field_settings = self.field_settings
return field_settings
def render(self, name, value, attrs=None, renderer=None):
attrs = attrs or {}
field_settings = self.get_field_settings()
if field_settings:
attrs[self.SETTINGS_ATTR] = json.dumps(field_settings, default=force_str)
textarea = super(RichTextWidget, self).render(name, value, attrs=attrs, renderer=renderer)
return format_html('<div class="{0}">{1}</div>', self.CONTAINER_CLASS, textarea)
def value_from_datadict(self, *args, **kwargs):
"""
Pass the submitted value through the sanitizer before returning it.
"""
value = super(RichTextWidget, self).value_from_datadict(*args, **kwargs)
if value is not None:
value = self.get_sanitizer()(value)
return value