Python html 模块，TAG 实例源码

def widget(cls, field, value, **attributes):
        _id = '%s_%s' % (field.tablename, field.name)
        _name = field.name
        if field.type == 'list:integer':
            _class = 'integer'
        else:
            _class = 'string'
        requires = field.requires if isinstance(
            field.requires, (IS_NOT_EMPTY, IS_LIST_OF)) else None
        nvalue = value or ['']
        items = [LI(INPUT(_id=_id, _class=_class, _name=_name,
                          value=v, hideerror=k < len(nvalue) - 1,
                          requires=requires),
                    **attributes) for (k, v) in enumerate(nvalue)]
        attributes['_id'] = _id + '_grow_input'
        attributes['_style'] = 'list-style:none'
        attributes['_class'] = 'w2p_list'
        return TAG[''](UL(*items, **attributes))

def __call__(self, field, value, **attributes):
        default = dict(
            _type='text',
            value=(not value is None and str(value)) or '',
        )
        attr = StringWidget._attributes(field, default, **attributes)
        div_id = self.keyword + '_div'
        attr['_autocomplete'] = 'off'
        if self.is_reference:
            key2 = self.keyword + '_aux'
            key3 = self.keyword + '_auto'
            attr['_class'] = 'string'
            name = attr['_name']
            if 'requires' in attr:
                del attr['requires']
            attr['_name'] = key2
            value = attr['value']
            record = self.db(
                self.fields[1] == value).select(self.fields[0]).first()
            attr['value'] = record and record[self.fields[0].name]
            attr['_onblur'] = "jQuery('#%(div_id)s').delay(1000).fadeOut('slow');" % \
                dict(div_id=div_id, u='F' + self.keyword)
            attr['_onkeyup'] = "jQuery('#%(key3)s').val('');var e=event.which?event.which:event.keyCode; function %(u)s(){jQuery('#%(id)s').val(jQuery('#%(key)s :selected').text());jQuery('#%(key3)s').val(jQuery('#%(key)s').val())}; if(e==39) %(u)s(); else if(e==40) {if(jQuery('#%(key)s option:selected').next().length)jQuery('#%(key)s option:selected').attr('selected',null).next().attr('selected','selected'); %(u)s();} else if(e==38) {if(jQuery('#%(key)s option:selected').prev().length)jQuery('#%(key)s option:selected').attr('selected',null).prev().attr('selected','selected'); %(u)s();} else if(jQuery('#%(id)s').val().length>=%(min_length)s) jQuery.get('%(url)s?%(key)s='+encodeURIComponent(jQuery('#%(id)s').val()),function(data){if(data=='')jQuery('#%(key3)s').val('');else{jQuery('#%(id)s').next('.error').hide();jQuery('#%(div_id)s').html(data).show().focus();jQuery('#%(div_id)s select').css('width',jQuery('#%(id)s').css('width'));jQuery('#%(key3)s').val(jQuery('#%(key)s').val());jQuery('#%(key)s').change(%(u)s);jQuery('#%(key)s').click(%(u)s);};}); else jQuery('#%(div_id)s').fadeOut('slow');" % \
                dict(url=self.url, min_length=self.min_length,
                     key=self.keyword, id=attr['_id'], key2=key2, key3=key3,
                     name=name, div_id=div_id, u='F' + self.keyword)
            if self.min_length == 0:
                attr['_onfocus'] = attr['_onkeyup']
            return TAG[''](INPUT(**attr), INPUT(_type='hidden', _id=key3, _value=value,
                                                _name=name, requires=field.requires),
                           DIV(_id=div_id, _style='position:absolute;'))
        else:
            attr['_name'] = field.name
            attr['_onblur'] = "jQuery('#%(div_id)s').delay(1000).fadeOut('slow');" % \
                dict(div_id=div_id, u='F' + self.keyword)
            attr['_onkeyup'] = "var e=event.which?event.which:event.keyCode; function %(u)s(){jQuery('#%(id)s').val(jQuery('#%(key)s').val())}; if(e==39) %(u)s(); else if(e==40) {if(jQuery('#%(key)s option:selected').next().length)jQuery('#%(key)s option:selected').attr('selected',null).next().attr('selected','selected'); %(u)s();} else if(e==38) {if(jQuery('#%(key)s option:selected').prev().length)jQuery('#%(key)s option:selected').attr('selected',null).prev().attr('selected','selected'); %(u)s();} else if(jQuery('#%(id)s').val().length>=%(min_length)s) jQuery.get('%(url)s?%(key)s='+encodeURIComponent(jQuery('#%(id)s').val()),function(data){jQuery('#%(id)s').next('.error').hide();jQuery('#%(div_id)s').html(data).show().focus();jQuery('#%(div_id)s select').css('width',jQuery('#%(id)s').css('width'));jQuery('#%(key)s').change(%(u)s);jQuery('#%(key)s').click(%(u)s);}); else jQuery('#%(div_id)s').fadeOut('slow');" % \
                dict(url=self.url, min_length=self.min_length,
                     key=self.keyword, id=attr['_id'], div_id=div_id, u='F' + self.keyword)
            if self.min_length == 0:
                attr['_onfocus'] = attr['_onkeyup']
            return TAG[''](INPUT(**attr), DIV(_id=div_id, _style='position:absolute;'))