Fix Bug 1058265 - Re-enable the Translation Bar using navigator.languages

bedrock/settings/base.py

@@ -1027,7 +1027,7 @@ FIREFOX_TWITTER_ACCOUNTS = {
 # Mapbox token for spaces and communities pages
 MAPBOX_TOKEN = 'examples.map-i86nkdio'
 
-# TABZILLA_INFOBAR_OPTIONS = 'translation'
+TABZILLA_INFOBAR_OPTIONS = 'translation'
 
 # Optimize.ly project code for base template JS snippet
 OPTIMIZELY_PROJECT_ID = None

bedrock/tabzilla/templates/tabzilla/tabzilla.js

@@ -193,22 +193,6 @@ var Tabzilla = (function (Tabzilla) {
     var removeCompactModeEvents = function () {
         nav.off('.submenu');
     };
-    Tabzilla.user = {};
-    Tabzilla.detectUserLang = function (callback) {
-        // Expose the user's accept languages in the HTTP Accept-Language
-        // request header, because the navigator.language property is just the
-        // application's locale on some browsers and the new navigator.languages
-        // property is not widely implemented yet.
-        $.ajax({ url: '/en-US/tabzilla/userlang.jsonp',
-                 cache: true, crossDomain: true, dataType: 'jsonp',
-                 jsonpCallback: "_", success: function (data) {
-            var lang = Tabzilla.user.languages = data.languages;
-
-            if (typeof callback === 'function') {
-                callback(lang);
-            }
-        }});
-    };
     Tabzilla.open = function () {
         opened = true;
         panel.toggleClass('open');
@@ -392,7 +376,12 @@ var Tabzilla = (function (Tabzilla) {
     Infobar.prototype.oncancel = {};
     Tabzilla.setupTransbar = function (userLangs, pageLang) {
         var transbar = new Infobar('transbar', 'Translation Bar');
-        userLangs = userLangs || Tabzilla.user.languages;
+
+        // Note that navigator.language doesn't always work because it's just
+        // the application's locale on some browsers. navigator.languages has
+        // not been widely implemented yet, but the new property provides an
+        // array of the user's accept languages that we'd like to see.
+        userLangs = userLangs || navigator.languages;
         pageLang = pageLang || document.documentElement.lang;
 
         if (transbar.disabled || !userLangs || !pageLang) {
@@ -614,9 +603,7 @@ var Tabzilla = (function (Tabzilla) {
 
         // Information Bars in order of priority
         var infobars = {
-            translation: function () {
-                Tabzilla.detectUserLang(Tabzilla.setupTransbar);
-            }
+            translation: Tabzilla.setupTransbar
         };
         $.each((tab.data('infobar') || '').split(' '), function (index, value) {
             var setup = infobars[value];

bedrock/tabzilla/urls.py

@@ -10,5 +10,4 @@ import views
 urlpatterns = patterns('',
     url(r'^tabzilla\.js$', views.tabzilla_js, name='tabzilla'),
     url(r'^transbar\.jsonp$', views.transbar_jsonp, name='transbar'),
-    url(r'^userlang\.jsonp$', views.userlang_jsonp, name='userlang'),
 )

bedrock/tabzilla/views.py

@@ -2,15 +2,13 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-import json
 import os.path
 from datetime import datetime
 
 from django.conf import settings
-from django.http import HttpResponse, HttpResponseRedirect
+from django.http import HttpResponseRedirect
 from django.template import loader
 from django.views.decorators.http import last_modified
-from django.views.decorators.vary import vary_on_headers
 
 from lib import l10n_utils
 
@@ -62,16 +60,3 @@ def transbar_jsonp(request):
     resp = _resp(request, 'tabzilla/transbar.jsonp', 'application/javascript')
     resp['Access-Control-Allow-Origin'] = '*'
     return resp
-
-
-@cache_control_expires(24 * 30)
-@vary_on_headers('Accept-Language')
-def userlang_jsonp(request):
-    data = {
-        'languages': l10n_utils.get_accept_languages(request)
-    }
-    resp = HttpResponse('_({0});'.format(json.dumps(data)),
-                        content_type='application/javascript')
-    resp['Access-Control-Allow-Origin'] = '*'
-
-    return resp

docs/tabzilla.rst

@@ -79,12 +79,4 @@ Adding the Translation Bar extension to Tabzilla requires:
 
     <a href="https://www.mozilla.org/" id="tabzilla" data-infobar="translation">mozilla</a>
 
-The Translation Bar relies on ``Tabzilla.user.languages`` and this data can be used for other purposes. In your JavaScript code:
-
-    if (Tabzilla.user.languages) {
-        doSomething(Tabzilla.user.languages);
-    } else {
-        Tabzilla.detectUserLang(doSomething);
-    }
-
 .. note:: Though the Translation Bar is currently implemented as an extension of Tabzilla, it might be moved to a standalone language utility in the future.