Add a basic language switcher in the home footer

fix #74

umap/settings/base.py

@@ -2,6 +2,7 @@
 # Import global settings to make it easier to extend settings.
 from django.conf.global_settings import *   # pylint: disable=W0614,W0401
 from django.template.defaultfilters import slugify
+from django.conf.locale import LANG_INFO
 
 # =============================================================================
 # Generic Django project settings
@@ -10,6 +11,21 @@ from django.template.defaultfilters import slugify
 DEBUG = True
 
 SITE_ID = 1
+# Add languages we're missing from Django
+LANG_INFO.update({
+    'am-et': {
+        'bidi': False,
+        'name': 'Amharic',
+        'code': 'am-et',
+        'name_local': 'አማርኛ'
+    },
+    'zh': {
+        'bidi': False,
+        'code': 'zh',
+        'name': 'Chinese',
+        'name_local': '简体中文',
+    },
+})
 # Local time zone for this installation. Choices can be found here:
 # http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
 TIME_ZONE = 'UTC'

umap/static/umap/nav.css

@@ -22,6 +22,12 @@ footer a.branding {
     color: #8F96A3;
     display: inline-block;
 }
+
+footer .i18n_switch {
+    display: inline-block;
+}
+
+
 .umap-nav {
     display: flex;
     flex-direction: column;

umap/templates/umap/content_footer.html

@@ -1,3 +1,17 @@
+{% load  i18n %}
+
 <footer>
     <a href="/" class="branding">umap</a> an OpenStreetMap project (version {{ UMAP_VERSION }})
+    {% get_language_info_list for LANGUAGES as languages %}
+    <form action="{% url "set_language" %}" method="post" class="i18n_switch">
+        {% csrf_token %}
+        <select name="language" onchange="this.form.submit()">
+        {% for language in languages %}
+        <option value="{{ language.code }}"
+            {% if language.code == LANGUAGE_CODE %}selected="selected"{% endif %}>
+            {{ language.name_local }}
+        </option>
+        {% endfor %}
+        </select>
+    </form>
 </footer>

umap/urls.py

@@ -31,6 +31,7 @@ urlpatterns = [
     url(r'^change-password-done/', auth_views.password_change_done,
         {'template_name': 'umap/password_change_done.html'},
         name='password_change_done'),
+    url(r'^i18n/', include('django.conf.urls.i18n')),
 ]
 
 i18n_urls = [