Further polished embedding system - allowed for context-dependent embed nodes to...
[philo.git] / admin / widgets.py
1 from django import forms
2 from django.conf import settings
3 from django.contrib.admin.widgets import FilteredSelectMultiple
4 from django.utils.translation import ugettext as _
5 from django.utils.safestring import mark_safe
6 from django.utils.text import truncate_words
7 from django.utils.html import escape
8
9
10 class ModelLookupWidget(forms.TextInput):
11         # is_hidden = False
12         
13         def __init__(self, content_type, attrs=None):
14                 self.content_type = content_type
15                 super(ModelLookupWidget, self).__init__(attrs)
16         
17         def render(self, name, value, attrs=None):
18                 related_url = '../../../%s/%s/' % (self.content_type.app_label, self.content_type.model)
19                 if attrs is None:
20                         attrs = {}
21                 if not attrs.has_key('class'):
22                         attrs['class'] = 'vForeignKeyRawIdAdminField'
23                 output = super(ModelLookupWidget, self).render(name, value, attrs)
24                 output += '<a href="%s" class="related-lookup" id="lookup_id_%s" onclick="return showRelatedObjectLookupPopup(this);">' % (related_url, name)
25                 output += '<img src="%simg/admin/selector-search.gif" width="16" height="16" alt="%s" />' % (settings.ADMIN_MEDIA_PREFIX, _('Lookup'))
26                 output += '</a>'
27                 if value:
28                         value_class = self.content_type.model_class()
29                         try:
30                                 value_object = value_class.objects.get(pk=value)
31                                 output += '&nbsp;<strong>%s</strong>' % escape(truncate_words(value_object, 14))
32                         except value_class.DoesNotExist:
33                                 pass
34                 return mark_safe(output)
35
36
37 class TagFilteredSelectMultiple(FilteredSelectMultiple):
38         """
39         A SelectMultiple with a JavaScript filter interface.
40
41         Note that the resulting JavaScript assumes that the jsi18n
42         catalog has been loaded in the page
43         """
44         class Media:
45                 js = (settings.ADMIN_MEDIA_PREFIX + "js/core.js",
46                           settings.ADMIN_MEDIA_PREFIX + "js/SelectBox.js",
47                           settings.ADMIN_MEDIA_PREFIX + "js/SelectFilter2.js")
48                 
49                 if 'staticmedia' in settings.INSTALLED_APPS:
50                         import staticmedia
51                         js += (staticmedia.url('admin/js/TagCreation.js'),)
52                 else:
53                         js += (settings.ADMIN_MEDIA_PREFIX + "js/TagCreation.js",)
54
55         def render(self, name, value, attrs=None, choices=()):
56                 if attrs is None: attrs = {}
57                 attrs['class'] = 'selectfilter'
58                 if self.is_stacked: attrs['class'] += 'stacked'
59                 output = [super(FilteredSelectMultiple, self).render(name, value, attrs, choices)]
60                 output.append(u'<script type="text/javascript">addEvent(window, "load", function(e) {')
61                 # TODO: "id_" is hard-coded here. This should instead use the correct
62                 # API to determine the ID dynamically.
63                 output.append(u'SelectFilter.init("id_%s", "%s", %s, "%s"); tagCreation.init("id_%s"); });</script>\n' % \
64                         (name, self.verbose_name.replace('"', '\\"'), int(self.is_stacked), settings.ADMIN_MEDIA_PREFIX, name))
65                 return mark_safe(u''.join(output))