html5_fields.py

# -*- coding: utf-8 -*-
'''A slew of HTML5 focused Fields.
'''


from tipfy.ext.wtforms import Field
from tipfy.ext.wtforms.widgets import Input


class HTML5Input(Input):
    ''''''

    def __init__(self):
        ''''''
        super(HTML5Input, self).__init__(**kwargs)


class TextInput(HTML5Input):
    ''''''

    def __init__(self, autofocus=False, placeholder=None, required=False,
                 **kwargs):
        ''''''
        super(HTML5Input, self).__init__(**kwargs)
        
        self.autofocus = autofocus
        self.placeholder = placeholder
        self.required = required


class HTML5Field(Field):
    '''A field that provides some generic new field attributes found in HTML5.
    '''
    widget = HTML5Input()
    
    def __init__(self, label='', validators=None, **kwargs):
        super(HTML5Field, self).__init__(label, validators, **kwargs)


class TextField(HTML5Field):
    '''
    '''
    widget = TextInput(input_type='text')
    
    def __init__(self, label='', validators=None, autofocus=False,
                 placeholder=None, required=False, **kwargs):
        super(TextField, self).__init__(label, validators, **kwargs)
        
        self.widget.autofocus = autofocus
        self.widget.placeholder = placeholder
        self.widget.required = required


class EmailField(TextField):
    '''
    '''
    widget = TextInput(input_type='email')
    
    def __init__(self, label='', validators=None, **kwargs):
        super(HTML5Field, self).__init__(label, validators, **kwargs)


class PhoneField(TextField):
    '''
    '''
    widget = TextInput(input_type='tel')
    
    def __init__(self, label='', validators=None, **kwargs):
        super(HTML5Field, self).__init__(label, validators, **kwargs)


class TagListField(TextField):
    widget = TextInput()
    
    def __init__(self, label='', validators=None, remove_duplicates=True, **kwargs):
        super(TagListField, self).__init__(label, validators, **kwargs)
        self.remove_duplicates = remove_duplicates

    def _value(self):
        if self.data:
            return u', '.join(self.data)
        else:
            return u''

    def process_formdata(self, valuelist):
        if valuelist:
            self.data = [x.strip() for x in valuelist[0].split(',')]
        else:
            self.data = []
        
        if self.remove_duplicates:
            self.data = list(self._remove_duplicates(self.data))

    @classmethod
    def _remove_duplicates(cls, seq):
        '''Remove duplicates in a case insensitive,
        but case preserving manner'''
        d = {}
        for item in seq:
            if item.lower() not in d:
                d[item.lower()] = True
                yield item