2026-01-17 14:11:57 +01:00

104 lines
4.2 KiB
Python

from wtforms import Field
from markupsafe import Markup
from flask_babel import lazy_gettext as _l
class TernaryNoneBooleanWidget:
"""
A widget that renders a horizontal radio button group with either two options (Yes/No)
or three options (Yes/No/Default), depending on the field's boolean_mode setting.
"""
def __call__(self, field, **kwargs):
html = ['<div class="ternary-radio-group pure-form">']
field_id = kwargs.pop('id', field.id)
boolean_mode = getattr(field, 'boolean_mode', False)
# Get custom text or use defaults
yes_text = getattr(field, 'yes_text', _l('Yes'))
no_text = getattr(field, 'no_text', _l('No'))
none_text = getattr(field, 'none_text', _l('Main settings'))
# True option
checked_true = ' checked' if field.data is True else ''
html.append(f'''
<label class="ternary-radio-option">
<input type="radio" name="{field.name}" value="true" id="{field_id}_true"{checked_true} class="pure-radio">
<span class="ternary-radio-label pure-button-primary">{yes_text}</span>
</label>
''')
# False option
checked_false = ' checked' if field.data is False else ''
html.append(f'''
<label class="ternary-radio-option">
<input type="radio" name="{field.name}" value="false" id="{field_id}_false"{checked_false} class="pure-radio">
<span class="ternary-radio-label">{no_text}</span>
</label>
''')
# None option (only show if not in boolean mode)
if not boolean_mode:
checked_none = ' checked' if field.data is None else ''
html.append(f'''
<label class="ternary-radio-option">
<input type="radio" name="{field.name}" value="none" id="{field_id}_none"{checked_none} class="pure-radio">
<span class="ternary-radio-label ternary-default">{none_text}</span>
</label>
''')
html.append('</div>')
return Markup(''.join(html))
class TernaryNoneBooleanField(Field):
"""
A field that can handle True, False, or None values, represented as a horizontal radio group.
When boolean_mode=True, it acts like a BooleanField (only Yes/No options).
When boolean_mode=False (default), it shows Yes/No/Default options.
Custom text can be provided for each option:
- yes_text: Text for True option (default: "Yes")
- no_text: Text for False option (default: "No")
- none_text: Text for None option (default: "Default")
"""
widget = TernaryNoneBooleanWidget()
def __init__(self, label=None, validators=None, false_values=None, boolean_mode=False,
yes_text=None, no_text=None, none_text=None, **kwargs):
super(TernaryNoneBooleanField, self).__init__(label, validators, **kwargs)
self.boolean_mode = boolean_mode
self.yes_text = yes_text if yes_text is not None else _l('Yes')
self.no_text = no_text if no_text is not None else _l('No')
self.none_text = none_text if none_text is not None else _l('Main settings')
if false_values is None:
self.false_values = {'false', ''}
else:
self.false_values = false_values
def process_formdata(self, valuelist):
if not valuelist or not valuelist[0]:
# In boolean mode, default to False instead of None
self.data = False if self.boolean_mode else None
elif valuelist[0].lower() == 'true':
self.data = True
elif valuelist[0].lower() == 'false':
self.data = False
elif valuelist[0].lower() == 'none':
# In boolean mode, treat 'none' as False
self.data = False if self.boolean_mode else None
else:
self.data = False if self.boolean_mode else None
def _value(self):
if self.data is True:
return 'true'
elif self.data is False:
return 'false'
else:
# In boolean mode, None should be treated as False
if self.boolean_mode:
return 'false'
else:
return 'none'