Remember letter while navigating

weblate/html/dictionary.html

@@ -16,11 +16,11 @@
 
 <span id="navi-toolbar" class="ui-widget-header ui-corner-all">
 <span class="navi">
-<a class="button-first{% if words.number == 1 %} button-disabled{% endif %}" href="?page=1">{% trans "First" %}</a>
-<a class="button-prev{% if not words.has_previous %} button-disabled{% endif %}" href="?page={{ words.previous_page_number }}">{% trans "Previous" %}</a>
+<a class="button-first{% if words.number == 1 %} button-disabled{% endif %}" href="?page=1&amp;letter={{ letter }}">{% trans "First" %}</a>
+<a class="button-prev{% if not words.has_previous %} button-disabled{% endif %}" href="?page={{ words.previous_page_number }}&amp;letter={{ letter }}">{% trans "Previous" %}</a>
 <a class="button-pos">{% blocktrans with words.number as position and words.paginator.num_pages as total %}{{ position }} / {{ total }}{% endblocktrans %}</a>
-<a class="button-next{% if not words.has_next %} button-disabled{% endif %}" href="?page={{ words.next_page_number }}">{% trans "Next" %}</a>
-<a class="button-end{% if words.paginator.num_pages == words.number %} button-disabled{% endif %}" href="?page={{ words.paginator.num_pages }}">{% trans "Last" %}</a>
+<a class="button-next{% if not words.has_next %} button-disabled{% endif %}" href="?page={{ words.next_page_number }}&amp;letter={{ letter }}">{% trans "Next" %}</a>
+<a class="button-end{% if words.paginator.num_pages == words.number %} button-disabled{% endif %}" href="?page={{ words.paginator.num_pages }}&amp;letter={{ letter }}">{% trans "Last" %}</a>
 </span>
 <form class="letter autosubmit">{{ letterform.as_p }}</form>
 </span>

weblate/trans/views.py

@@ -261,6 +261,7 @@ def show_dictionary(request, project, lang):
         'form': form,
         'uploadform': uploadform,
         'letterform': letterform,
+        'letter': letterform.cleaned_data['letter'],
     }))
 
 def show_project(request, project):