74 lines
2.8 KiB
Python
74 lines
2.8 KiB
Python
import re
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import textwrap
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from django import forms
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from django.utils.safestring import mark_safe
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from django.contrib.admin.templatetags.admin_static import static
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class SpanWidget(forms.Widget):
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"""
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Renders a value wrapped in a <span> tag.
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Requires use of specific form support. (see ReadonlyForm or ReadonlyModelForm)
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"""
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def __init__(self, *args, **kwargs):
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self.tag = kwargs.pop('tag', '<span>')
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self.original = kwargs.pop('original', '')
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self.display = kwargs.pop('display', None)
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super(SpanWidget, self).__init__(*args, **kwargs)
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def render(self, name, value, attrs=None, renderer=None):
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final_attrs = self.build_attrs(attrs, extra_attrs={'name':name})
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original = self.original or value
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display = original if self.display is None else self.display
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# Display icon
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if isinstance(original, bool):
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icon = static('admin/img/icon-%s.svg' % ('yes' if original else 'no',))
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return mark_safe('<img src="%s" alt="%s">' % (icon, display))
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tag = self.tag[:-1]
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endtag = '/'.join((self.tag[0], self.tag[1:]))
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return mark_safe('%s%s >%s%s' % (tag, forms.utils.flatatt(final_attrs), display, endtag))
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def value_from_datadict(self, data, files, name):
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return self.original
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def _has_changed(self, initial, data):
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return False
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class PaddingCheckboxSelectMultiple(forms.CheckboxSelectMultiple):
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""" Ugly hack to render this widget nicely on Django admin """
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def __init__(self, padding, attrs=None, choices=()):
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super().__init__(attrs=attrs, choices=choices)
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self.padding = padding
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def render(self, *args, **kwargs):
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value = super().render(*args, **kwargs)
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value = re.sub(r'^<ul id=([^>]+)>',
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r'<ul id=\1 style="padding-left:%ipx">' % self.padding, value, 1)
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return mark_safe(value)
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class DynamicHelpTextSelect(forms.Select):
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def __init__(self, target, help_text, *args, **kwargs):
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help_text = self.get_dynamic_help_text(target, help_text)
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attrs = kwargs.get('attrs', {})
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attrs.update({
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'onClick': help_text,
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'onChange': help_text,
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})
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attrs.update(kwargs.get('attrs', {}))
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kwargs['attrs'] = attrs
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super(DynamicHelpTextSelect, self).__init__(*args, **kwargs)
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def get_dynamic_help_text(self, target, help_text):
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return textwrap.dedent("""\
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siteoptions = {help_text};
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valueelement = $("#" + {target});
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help_text = siteoptions[this.options[this.selectedIndex].value] || ""
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valueelement.parent().find('p').remove();
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valueelement.parent().append("<p class='help'>" + help_text + "</p>");\
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""".format(target=target, help_text=str(help_text))
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)
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