1 ### -*- coding: utf-8 -*- #################################################### |
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2 ############################################################################## |
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3 # |
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4 # Copyright (c) 2012 Thierry Florac <tflorac AT ulthar.net> |
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5 # All Rights Reserved. |
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6 # |
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7 # This software is subject to the provisions of the Zope Public License, |
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8 # Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution. |
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9 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED |
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10 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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11 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS |
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12 # FOR A PARTICULAR PURPOSE. |
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13 # |
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14 ############################################################################## |
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15 |
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16 |
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17 # import standard packages |
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18 |
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19 # import Zope3 interfaces |
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20 from z3c.form.interfaces import IMultiWidget, IFieldWidget, NO_VALUE |
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21 |
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22 # import local interfaces |
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23 from ztfy.skin.layer import IZTFYBrowserLayer |
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24 from ztfy.utils.schema import IDatesRangeField |
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25 |
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26 # import Zope3 packages |
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27 from z3c.form.browser.widget import HTMLFormElement |
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28 from z3c.form.converter import SequenceDataConverter, FormatterValidationError |
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29 from z3c.form.widget import FieldWidget, Widget |
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30 from zope.component import adapter, adapts |
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31 from zope.interface import implementer, implements |
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32 from zope.i18n.format import DateTimeParseError |
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33 |
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34 # import local packages |
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35 from ztfy.jqueryui import jquery_datetime |
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36 |
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37 |
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38 class IDatesRangeWidget(IMultiWidget): |
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39 """Dates range widget interface""" |
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40 |
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41 |
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42 class DatesRangeDataConverter(SequenceDataConverter): |
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43 """Dates range data converter""" |
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44 |
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45 adapts(IDatesRangeField, IDatesRangeWidget) |
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46 |
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47 def toWidgetValue(self, value): |
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48 if value is self.field.missing_value: |
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49 return (u'', u'') |
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50 locale = self.widget.request.locale |
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51 formatter = locale.dates.getFormatter('date', 'short') |
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52 return (formatter.format(value[0]) if value[0] else None, |
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53 formatter.format(value[1]) if value[1] else None) |
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54 |
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55 def toFieldValue(self, value): |
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56 if not value: |
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57 return self.field.missing_value |
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58 try: |
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59 locale = self.widget.request.locale |
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60 formatter = locale.dates.getFormatter('date', 'short') |
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61 return (formatter.parse(value[0]) if value[0] else None, |
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62 formatter.parse(value[1]) if value[1] else None) |
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63 except DateTimeParseError, err: |
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64 raise FormatterValidationError(err.args[0], value) |
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65 |
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66 |
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67 class DatesRangeWidget(HTMLFormElement, Widget): |
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68 """Dates range widget""" |
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69 |
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70 implements(IDatesRangeWidget) |
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71 |
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72 @property |
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73 def pattern(self): |
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74 result = self.request.locale.dates.getFormatter('date', 'short').getPattern() |
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75 return result.replace('dd', '%d').replace('MM', '%m').replace('yy', '%y') |
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76 |
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77 @property |
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78 def begin_id(self): |
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79 return '%s-begin' % self.id |
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80 |
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81 @property |
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82 def begin_name(self): |
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83 return '%s.begin' % self.name |
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84 |
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85 @property |
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86 def begin_date(self): |
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87 return (self.value[0] or '') if self.value else '' |
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88 |
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89 @property |
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90 def end_id(self): |
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91 return '%s-end' % self.id |
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92 |
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93 @property |
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94 def end_name(self): |
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95 return '%s.end' % self.name |
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96 |
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97 @property |
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98 def end_date(self): |
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99 return (self.value[1] or '') if self.value else '' |
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100 |
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101 def extract(self, default=NO_VALUE): |
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102 begin_date = self.request.get(self.begin_name) |
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103 end_date = self.request.get(self.end_name) |
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104 return (begin_date, end_date) |
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105 |
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106 def render(self): |
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107 result = super(DatesRangeWidget, self).render() |
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108 if result: |
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109 jquery_datetime.need() |
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110 return result |
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111 |
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112 @adapter(IDatesRangeField, IZTFYBrowserLayer) |
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113 @implementer(IFieldWidget) |
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114 def DatesRangeFieldWidgetFactory(field, request): |
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115 """IDatesRangeField widget factory""" |
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116 return FieldWidget(field, DatesRangeWidget(request)) |
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