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annotate core/widgets.py @ 1083:ae648fec8a51

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Attempt to prevent FOUC around main menu.
author Brian Neal <bgneal@gmail.com>
date Wed, 27 Apr 2016 19:34:05 -0500
parents 678a1a2ef55a
children
rev   line source
gremmie@1 1 """
gremmie@1 2 Various useful widgets for the GPP application.
gremmie@1 3 """
gremmie@1 4
gremmie@1 5 from django import forms
gremmie@1 6 from django.utils.safestring import mark_safe
gremmie@1 7 from django.core.urlresolvers import reverse
gremmie@1 8
gremmie@1 9
gremmie@1 10 class AutoCompleteUserInput(forms.TextInput):
gremmie@1 11
gremmie@1 12 def render(self, name, value, attrs=None):
bgneal@149 13 url = reverse('core-ajax_users')
gremmie@1 14 output = super(AutoCompleteUserInput, self).render(name, value, attrs)
bgneal@186 15 return output + mark_safe(u"""\
gremmie@1 16 <script type="text/javascript">
bgneal@186 17 $(function() {
bgneal@186 18 var cache = {};
bgneal@186 19 var cacheSize = 0;
bgneal@186 20 $("#id_%s").autocomplete({
bgneal@186 21 delay: 400,
bgneal@326 22 minLength: 1,
bgneal@186 23 source: function(request, response) {
bgneal@186 24 if (cache[request.term]) {
bgneal@186 25 response(cache[request.term]);
bgneal@186 26 return;
bgneal@186 27 }
bgneal@186 28 $.ajax({
bgneal@186 29 url: "%s",
bgneal@186 30 type: "GET",
bgneal@186 31 data: {
bgneal@186 32 q: request.term,
bgneal@326 33 limit: 15
bgneal@186 34 },
bgneal@186 35 dataType: "json",
bgneal@186 36 success: function(data, textStatus) {
bgneal@326 37 if (cacheSize >= 32) {
bgneal@186 38 cache = {};
bgneal@186 39 cacheSize = 0;
bgneal@186 40 }
bgneal@186 41 cache[request.term] = data;
bgneal@186 42 ++cacheSize;
bgneal@186 43 response(data);
bgneal@186 44 },
bgneal@186 45 error: function(xhr, textStatus, ex) {
bgneal@186 46 alert('Oops, an error occurred. ' + xhr.statusText + ' - ' +
bgneal@186 47 xhr.responseText);
bgneal@186 48 }
bgneal@186 49 });
bgneal@186 50 }
bgneal@186 51 });
gremmie@1 52 });
bgneal@186 53 </script>""" % (name, url))
gremmie@1 54