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Added PasswordInput, HiddenInput, FileInput, Select to django.newforms.widgets

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git-svn-id: http://code.djangoproject.com/svn/django/trunk@3956 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Adrian Holovaty 2006-11-01 23:53:37 +00:00
parent c58fe999a1
commit c0eab791df
1 changed files with 46 additions and 3 deletions
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49
django/newforms/widgets.py
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@ -2,9 +2,10 @@
HTML Widget classes
"""
__all__ = ('Widget', 'TextInput', 'Textarea', 'CheckboxInput')
__all__ = ('Widget', 'TextInput', 'PasswordInput', 'HiddenInput', 'FileInput', 'Textarea', 'CheckboxInput', 'Select')
from django.utils.html import escape
from itertools import chain
# Converts a dictionary to a single string with key="value", XML-style.
# Assumes keys do not need to be XML-escaped.
@ -17,15 +18,29 @@ class Widget(object):
def render(self, name, value):
raise NotImplementedError
class TextInput(Widget):
class Input(Widget):
"Base class for all <input> widgets (except type='checkbox', which is special)"
input_type = None # Subclasses must define this.
def render(self, name, value, attrs=None):
if value is None: value = ''
final_attrs = dict(self.attrs, type='text', name=name)
final_attrs = dict(self.attrs, type=self.input_type, name=name)
if attrs:
final_attrs.update(attrs)
if value != '': final_attrs['value'] = value # Only add the 'value' attribute if a value is non-empty.
return u'<input %s />' % flatatt(final_attrs)
class TextInput(Input):
input_type = 'text'
class PasswordInput(Input):
input_type = 'password'
class HiddenInput(Input):
input_type = 'hidden'
class FileInput(Input):
input_type = 'file'
class Textarea(Widget):
def render(self, name, value, attrs=None):
if value is None: value = ''
@ -41,3 +56,31 @@ class CheckboxInput(Widget):
final_attrs.update(attrs)
if value: final_attrs['checked'] = 'checked'
return u'<input %s />' % flatatt(final_attrs)
class Select(Widget):
def __init__(self, attrs=None, choices=()):
# choices can be any iterable
self.attrs = attrs or {}
self.choices = choices
def render(self, name, value, attrs=None, choices=()):
if value is None: value = ''
final_attrs = dict(self.attrs, name=name)
if attrs:
final_attrs.update(attrs)
output = [u'<select %s>' % flatatt(final_attrs)]
str_value = str(value) # Normalize to string.
for option_value, option_label, in chain(self.choices, choices):
selected_html = (str(option_value) == str_value) and ' selected="selected"' or ''
output.append(u'<option value="%s"%s>%s</option>' % (escape(option_value), selected_html, escape(option_label)))
output.append(u'</select>')
return u'\n'.join(output)
class SelectMultiple(Widget):
pass
class RadioSelect(Widget):
pass
class CheckboxSelectMultiple(Widget):
pass