alfortville: add header checkbox to toggle validation on all mails (#13536)

welco/contrib/alfortville/templates/alfortville/dg-table.html

@@ -23,7 +23,7 @@
  <th>{% trans 'User' %}</th>
  <th>{% trans 'Category' %}</th>
  <th>{% trans 'Related Forms' %}</th>
- <td></td>
+ <th><input type="checkbox" title="{% trans "Click to (un)toggle all mails" %}" id="click-all-pks"/></th>
 </thead>
 <tbody>
 {% for object in mails %}
@@ -42,6 +42,9 @@
 $('td.r').click(function() {
   window.open('../?' + $(this).parent().data('mail-id'), target='_welco_dg');
 });
+$('input#click-all-pks').click(function(e) {
+  $('input[name="pks"]').prop('checked', $(this).prop('checked'));
+});
 </script>
 </table>
 </div>