add language switcher drop-down to Marketplace (bug 740717)

media/js/mkt/utils.js

@@ -53,3 +53,9 @@ $('html').ajaxSend(function(event, xhr, ajaxSettings) {
 }).ajaxSuccess(function(event, xhr, ajaxSettings) {
     $(window).trigger('resize'); // Redraw what needs to be redrawn.
 });
+
+
+// If any field changes, submit the form.
+$('form.go').change(function() {
+    this.submit();
+});

mkt/site/templates/site/includes/languages.html

@@ -0,0 +1,13 @@
+<form class="go" id="lang-form" method="get">
+  <label for="language">{{ _('Other languages') }}:</label>
+  <select id="language" name="lang" dir="ltr">
+    {% for code, name in LANGUAGES|dictsort -%}
+      <option value="{{ code }}"{% if code == LANG|lower %} selected{% endif %}>
+        {{ name }}</option>
+    {%- endfor %}
+  </select>
+  {% for key, value in request.GET.items() %}
+    <input type="hidden" name="{{ key }}" value="{{ value }}">
+  {% endfor %}
+  <noscript><button type="submit">{{ _('Go') }}</button></noscript>
+</form>

mkt/site/tests/test_views.py

@@ -4,6 +4,8 @@
 
 import mock
 from nose.tools import eq_
+from pyquery import PyQuery as pq
+import waffle
 
 import amo
 import amo.tests
@@ -42,3 +44,22 @@ def test_engage_robots(self):
     def test_do_not_engage_robots(self):
         rs = self.client.get('/robots.txt')
         self.assertContains(rs, 'Disallow: /')
+
+
+class TestFooter(amo.tests.TestCase):
+
+    def test_language_selector(self):
+        waffle.models.Switch.objects.create(name='unleash-consumer',
+                                            active=True)
+        r = self.client.get(reverse('home'))
+        eq_(r.status_code, 200)
+        eq_(pq(r.content)('#lang-form option[selected]').attr('value'),
+            'en-us')
+
+    def test_language_selector_variables(self):
+        waffle.models.Switch.objects.create(name='unleash-consumer',
+                                            active=True)
+        r = self.client.get(reverse('home'), {'x': 'xxx', 'y': 'yyy'})
+        doc = pq(r.content)('#lang-form')
+        eq_(doc('input[type=hidden][name=x]').attr('value'), 'xxx')
+        eq_(doc('input[type=hidden][name=y]').attr('value'), 'yyy')

mkt/templates/mkt/base.html

@@ -69,6 +69,7 @@
         {% else %}
           <a class="button browserid" href="#">{{ _('Log in / Register') }}</a>
         {% endif %}
+        {% include 'site/includes/languages.html' %}
       </footer>
     {% endblock %}