--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ztfy/utils/browser/daterange.py Tue Nov 20 17:51:28 2012 +0100
@@ -0,0 +1,116 @@
+### -*- coding: utf-8 -*- ####################################################
+##############################################################################
+#
+# Copyright (c) 2012 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
+
+
+# import standard packages
+
+# import Zope3 interfaces
+from z3c.form.interfaces import IMultiWidget, IFieldWidget, NO_VALUE
+
+# import local interfaces
+from ztfy.skin.layer import IZTFYBrowserLayer
+from ztfy.utils.schema import IDatesRangeField
+
+# import Zope3 packages
+from z3c.form.browser.widget import HTMLFormElement
+from z3c.form.converter import SequenceDataConverter, FormatterValidationError
+from z3c.form.widget import FieldWidget, Widget
+from zope.component import adapter, adapts
+from zope.interface import implementer, implements
+from zope.i18n.format import DateTimeParseError
+
+# import local packages
+from ztfy.jqueryui import jquery_datetime
+
+
+class IDatesRangeWidget(IMultiWidget):
+ """Dates range widget interface"""
+
+
+class DatesRangeDataConverter(SequenceDataConverter):
+ """Dates range data converter"""
+
+ adapts(IDatesRangeField, IDatesRangeWidget)
+
+ def toWidgetValue(self, value):
+ if value is self.field.missing_value:
+ return (u'', u'')
+ locale = self.widget.request.locale
+ formatter = locale.dates.getFormatter('date', 'short')
+ return (formatter.format(value[0]) if value[0] else None,
+ formatter.format(value[1]) if value[1] else None)
+
+ def toFieldValue(self, value):
+ if not value:
+ return self.field.missing_value
+ try:
+ locale = self.widget.request.locale
+ formatter = locale.dates.getFormatter('date', 'short')
+ return (formatter.parse(value[0]) if value[0] else None,
+ formatter.parse(value[1]) if value[1] else None)
+ except DateTimeParseError, err:
+ raise FormatterValidationError(err.args[0], value)
+
+
+class DatesRangeWidget(HTMLFormElement, Widget):
+ """Dates range widget"""
+
+ implements(IDatesRangeWidget)
+
+ @property
+ def pattern(self):
+ result = self.request.locale.dates.getFormatter('date', 'short').getPattern()
+ return result.replace('dd', '%d').replace('MM', '%m').replace('yy', '%y')
+
+ @property
+ def begin_id(self):
+ return '%s-begin' % self.id
+
+ @property
+ def begin_name(self):
+ return '%s.begin' % self.name
+
+ @property
+ def begin_date(self):
+ return (self.value[0] or '') if self.value else ''
+
+ @property
+ def end_id(self):
+ return '%s-end' % self.id
+
+ @property
+ def end_name(self):
+ return '%s.end' % self.name
+
+ @property
+ def end_date(self):
+ return (self.value[1] or '') if self.value else ''
+
+ def extract(self, default=NO_VALUE):
+ begin_date = self.request.get(self.begin_name)
+ end_date = self.request.get(self.end_name)
+ return (begin_date, end_date)
+
+ def render(self):
+ result = super(DatesRangeWidget, self).render()
+ if result:
+ jquery_datetime.need()
+ return result
+
+@adapter(IDatesRangeField, IZTFYBrowserLayer)
+@implementer(IFieldWidget)
+def DatesRangeFieldWidgetFactory(field, request):
+ """IDatesRangeField widget factory"""
+ return FieldWidget(field, DatesRangeWidget(request))