+
−"""
+
−Form Widget classes specific to the Django admin site.
+
−"""
+
−
+
−import copy
+
−
+
−from django import forms
+
−from django.forms.widgets import RadioFieldRenderer
+
−from django.forms.util import flatatt
+
−from django.utils.text import truncate_words
+
−from django.utils.translation import ugettext as _
+
−from django.utils.safestring import mark_safe
+
−from django.utils.encoding import force_unicode
+
−from django.conf import settings
+
−
+
−class FilteredSelectMultiple(forms.SelectMultiple):
+
−    """
+
−    A SelectMultiple with a JavaScript filter interface.
+
−
+
−    Note that the resulting JavaScript assumes that the jsi18n
+
−    catalog has been loaded in the page
+
−    """
+
−    class Media:
+
−        js = (settings.ADMIN_MEDIA_PREFIX + "js/core.js",
+
−              settings.ADMIN_MEDIA_PREFIX + "js/SelectBox.js",
+
−              settings.ADMIN_MEDIA_PREFIX + "js/SelectFilter2.js")
+
−
+
−    def __init__(self, verbose_name, is_stacked, attrs=None, choices=()):
+
−        self.verbose_name = verbose_name
+
−        self.is_stacked = is_stacked
+
−        super(FilteredSelectMultiple, self).__init__(attrs, choices)
+
−
+
−    def render(self, name, value, attrs=None, choices=()):
+
−        output = [super(FilteredSelectMultiple, self).render(name, value, attrs, choices)]
+
−        output.append(u'<script type="text/javascript">addEvent(window, "load", function(e) {')
+
−        # TODO: "id_" is hard-coded here. This should instead use the correct
+
−        # API to determine the ID dynamically.
+
−        output.append(u'SelectFilter.init("id_%s", "%s", %s, "%s"); });</script>\n' % \
+
−            (name, self.verbose_name.replace('"', '\\"'), int(self.is_stacked), settings.ADMIN_MEDIA_PREFIX))
+
−        return mark_safe(u''.join(output))
+
−
+
−class AdminDateWidget(forms.TextInput):
+
−    class Media:
+
−        js = (settings.ADMIN_MEDIA_PREFIX + "js/calendar.js",
+
−              settings.ADMIN_MEDIA_PREFIX + "js/admin/DateTimeShortcuts.js")
+
−
+
−    def __init__(self, attrs={}):
+
−        super(AdminDateWidget, self).__init__(attrs={'class': 'vDateField', 'size': '10'})
+
−
+
−class AdminTimeWidget(forms.TextInput):
+
−    class Media:
+
−        js = (settings.ADMIN_MEDIA_PREFIX + "js/calendar.js",
+
−              settings.ADMIN_MEDIA_PREFIX + "js/admin/DateTimeShortcuts.js")
+
−
+
−    def __init__(self, attrs={}):
+
−        super(AdminTimeWidget, self).__init__(attrs={'class': 'vTimeField', 'size': '8'})
+
−
+
−class AdminSplitDateTime(forms.SplitDateTimeWidget):
+
−    """
+
−    A SplitDateTime Widget that has some admin-specific styling.
+
−    """
+
−    def __init__(self, attrs=None):
+
−        widgets = [AdminDateWidget, AdminTimeWidget]
+
−        # Note that we're calling MultiWidget, not SplitDateTimeWidget, because
+
−        # we want to define widgets.
+
−        forms.MultiWidget.__init__(self, widgets, attrs)
+
−
+
−    def format_output(self, rendered_widgets):
+
−        return mark_safe(u'<p class="datetime">%s %s<br />%s %s</p>' % \
+
−            (_('Date:'), rendered_widgets[0], _('Time:'), rendered_widgets[1]))
+
−
+
−class AdminRadioFieldRenderer(RadioFieldRenderer):
+
−    def render(self):
+
−        """Outputs a <ul> for this set of radio fields."""
+
−        return mark_safe(u'<ul%s>\n%s\n</ul>' % (
+
−            flatatt(self.attrs),
+
−            u'\n'.join([u'<li>%s</li>' % force_unicode(w) for w in self]))
+
−        )
+
−
+
−class AdminRadioSelect(forms.RadioSelect):
+
−    renderer = AdminRadioFieldRenderer
+
−
+
−class AdminFileWidget(forms.FileInput):
+
−    """
+
−    A FileField Widget that shows its current value if it has one.
+
−    """
+
−    def __init__(self, attrs={}):
+
−        super(AdminFileWidget, self).__init__(attrs)
+
−
+
−    def render(self, name, value, attrs=None):
+
−        output = []
+
−        if value and hasattr(value, "url"):
+
−            output.append('%s <a target="_blank" href="%s">%s</a> <br />%s ' % \
+
−                (_('Currently:'), value.url, value, _('Change:')))
+
−        output.append(super(AdminFileWidget, self).render(name, value, attrs))
+
−        return mark_safe(u''.join(output))
+
−
+
−class ForeignKeyRawIdWidget(forms.TextInput):
+
−    """
+
−    A Widget for displaying ForeignKeys in the "raw_id" interface rather than
+
−    in a <select> box.
+
−    """
+
−    def __init__(self, rel, attrs=None):
+
−        self.rel = rel
+
−        super(ForeignKeyRawIdWidget, self).__init__(attrs)
+
−
+
−    def render(self, name, value, attrs=None):
+
−        if attrs is None:
+
−            attrs = {}
+
−        related_url = '../../../%s/%s/' % (self.rel.to._meta.app_label, self.rel.to._meta.object_name.lower())
+
−        params = self.url_parameters()
+
−        if params:
+
−            url = '?' + '&amp;'.join(['%s=%s' % (k, v) for k, v in params.items()])
+
−        else:
+
−            url = ''
+
−        if not attrs.has_key('class'):
+
−            attrs['class'] = 'vForeignKeyRawIdAdminField' # The JavaScript looks for this hook.
+
−        output = [super(ForeignKeyRawIdWidget, self).render(name, value, attrs)]
+
−        # TODO: "id_" is hard-coded here. This should instead use the correct
+
−        # API to determine the ID dynamically.
+
−        output.append('<a href="%s%s" class="related-lookup" id="lookup_id_%s" onclick="return showRelatedObjectLookupPopup(this);"> ' % \
+
−            (related_url, url, name))
+
−        output.append('<img src="%simg/admin/selector-search.gif" width="16" height="16" alt="%s" /></a>' % (settings.ADMIN_MEDIA_PREFIX, _('Lookup')))
+
−        if value:
+
−            output.append(self.label_for_value(value))
+
−        return mark_safe(u''.join(output))
+
−    
+
−    def base_url_parameters(self):
+
−        params = {}
+
−        if self.rel.limit_choices_to:
+
−            items = []
+
−            for k, v in self.rel.limit_choices_to.items():
+
−                if isinstance(v, list):
+
−                    v = [str(x) for x in v]
+
−                else:
+
−                    v = str(v)
+
−                items.append((k, ','.join(v)))
+
−            params.update(dict(items))
+
−        return params    
+
−    
+
−    def url_parameters(self):
+
−        from django.contrib.admin.views.main import TO_FIELD_VAR
+
−        params = self.base_url_parameters()
+
−        params.update({TO_FIELD_VAR: self.rel.get_related_field().name})
+
−        return params
+
−            
+
−    def label_for_value(self, value):
+
−        key = self.rel.get_related_field().name
+
−        obj = self.rel.to.objects.get(**{key: value})
+
−        return '&nbsp;<strong>%s</strong>' % truncate_words(obj, 14)
+
−
+
−class ManyToManyRawIdWidget(ForeignKeyRawIdWidget):
+
−    """
+
−    A Widget for displaying ManyToMany ids in the "raw_id" interface rather than
+
−    in a <select multiple> box.
+
−    """
+
−    def __init__(self, rel, attrs=None):
+
−        super(ManyToManyRawIdWidget, self).__init__(rel, attrs)
+
−
+
−    def render(self, name, value, attrs=None):
+
−        attrs['class'] = 'vManyToManyRawIdAdminField'
+
−        if value:
+
−            value = ','.join([str(v) for v in value])
+
−        else:
+
−            value = ''
+
−        return super(ManyToManyRawIdWidget, self).render(name, value, attrs)
+
−    
+
−    def url_parameters(self):
+
−        return self.base_url_parameters()
+
−    
+
−    def label_for_value(self, value):
+
−        return ''
+
−
+
−    def value_from_datadict(self, data, files, name):
+
−        value = data.get(name, None)
+
−        if value and ',' in value:
+
−            return data[name].split(',')
+
−        if value:
+
−            return [value]
+
−        return None
+
−
+
−    def _has_changed(self, initial, data):
+
−        if initial is None:
+
−            initial = []
+
−        if data is None:
+
−            data = []
+
−        if len(initial) != len(data):
+
−            return True
+
−        for pk1, pk2 in zip(initial, data):
+
−            if force_unicode(pk1) != force_unicode(pk2):
+
−                return True
+
−        return False
+
−
+
−class RelatedFieldWidgetWrapper(forms.Widget):
+
−    """
+
−    This class is a wrapper to a given widget to add the add icon for the
+
−    admin interface.
+
−    """
+
−    def __init__(self, widget, rel, admin_site):
+
−        self.is_hidden = widget.is_hidden
+
−        self.needs_multipart_form = widget.needs_multipart_form
+
−        self.attrs = widget.attrs
+
−        self.choices = widget.choices
+
−        self.widget = widget
+
−        self.rel = rel
+
−        # so we can check if the related object is registered with this AdminSite
+
−        self.admin_site = admin_site
+
−
+
−    def __deepcopy__(self, memo):
+
−        obj = copy.copy(self)
+
−        obj.widget = copy.deepcopy(self.widget, memo)
+
−        obj.attrs = self.widget.attrs
+
−        memo[id(self)] = obj
+
−        return obj
+
−
+
−    def _media(self):
+
−        return self.widget.media
+
−    media = property(_media)
+
−
+
−    def render(self, name, value, *args, **kwargs):
+
−        rel_to = self.rel.to
+
−        related_url = '../../../%s/%s/' % (rel_to._meta.app_label, rel_to._meta.object_name.lower())
+
−        self.widget.choices = self.choices
+
−        output = [self.widget.render(name, value, *args, **kwargs)]
+
−        if rel_to in self.admin_site._registry: # If the related object has an admin interface:
+
−            # TODO: "id_" is hard-coded here. This should instead use the correct
+
−            # API to determine the ID dynamically.
+
−            output.append(u'<a href="%sadd/" class="add-another" id="add_id_%s" onclick="return showAddAnotherPopup(this);"> ' % \
+
−                (related_url, name))
+
−            output.append(u'<img src="%simg/admin/icon_addlink.gif" width="10" height="10" alt="%s"/></a>' % (settings.ADMIN_MEDIA_PREFIX, _('Add Another')))
+
−        return mark_safe(u''.join(output))
+
−
+
−    def build_attrs(self, extra_attrs=None, **kwargs):
+
−        "Helper function for building an attribute dictionary."
+
−        self.attrs = self.widget.build_attrs(extra_attrs=None, **kwargs)
+
−        return self.attrs
+
−
+
−    def value_from_datadict(self, data, files, name):
+
−        return self.widget.value_from_datadict(data, files, name)
+
−
+
−    def _has_changed(self, initial, data):
+
−        return self.widget._has_changed(initial, data)
+
−
+
−    def id_for_label(self, id_):
+
−        return self.widget.id_for_label(id_)
+
−
+
−class AdminTextareaWidget(forms.Textarea):
+
−    def __init__(self, attrs=None):
+
−        final_attrs = {'class': 'vLargeTextField'}
+
−        if attrs is not None:
+
−            final_attrs.update(attrs)
+
−        super(AdminTextareaWidget, self).__init__(attrs=final_attrs)
+
−
+
−class AdminTextInputWidget(forms.TextInput):
+
−    def __init__(self, attrs=None):
+
−        final_attrs = {'class': 'vTextField'}
+
−        if attrs is not None:
+
−            final_attrs.update(attrs)
+
−        super(AdminTextInputWidget, self).__init__(attrs=final_attrs)
+
−
+
−class AdminURLFieldWidget(forms.TextInput):
+
−    def __init__(self, attrs=None):
+
−        final_attrs = {'class': 'vURLField'}
+
−        if attrs is not None:
+
−            final_attrs.update(attrs)
+
−        super(AdminURLFieldWidget, self).__init__(attrs=final_attrs)
+
−
+
−class AdminIntegerFieldWidget(forms.TextInput):
+
−    def __init__(self, attrs=None):
+
−        final_attrs = {'class': 'vIntegerField'}
+
−        if attrs is not None:
+
−            final_attrs.update(attrs)
+
−        super(AdminIntegerFieldWidget, self).__init__(attrs=final_attrs)
+
−
+
−class AdminCommaSeparatedIntegerFieldWidget(forms.TextInput):
+
−    def __init__(self, attrs=None):
+
−        final_attrs = {'class': 'vCommaSeparatedIntegerField'}
+
−        if attrs is not None:
+
−            final_attrs.update(attrs)
+
−        super(AdminCommaSeparatedIntegerFieldWidget, self).__init__(attrs=final_attrs)