Refactor attribution note in the widget

src/pretix/presale/views/widget.py

@@ -4,6 +4,7 @@ import json
 import logging
 from collections import defaultdict
 from datetime import date, datetime, timedelta
+from gettext import pgettext
 from urllib.parse import urljoin
 
 import pytz
@@ -238,7 +239,13 @@ class WidgetAPIProductList(EventListMixin, View):
             })
         return grps, display_add_to_cart, len(items)
 
+    def post_process(self, data):
+        data['poweredby'] = '<a href="https://pretix.eu" target="_blank" rel="noopener">{}</a>'.format(
+            pgettext('widget', 'event ticketing powered by pretix')
+        )
+
     def response(self, data):
+        self.post_process(data)
         resp = JsonResponse(data)
         resp['Access-Control-Allow-Origin'] = '*'
         return resp

src/pretix/static/pretixpresale/js/widget/widget.js

@@ -32,8 +32,6 @@ var strings = {
     'cart_exists': django.pgettext('widget', 'You currently have an active cart for this event. If you select more' +
         ' products, they will be added to your existing cart.'),
     'resume_checkout': django.pgettext('widget', 'Resume checkout'),
-    'poweredby': django.pgettext('widget', '<a href="https://pretix.eu" target="_blank" rel="noopener">event' +
-        ' ticketing powered by pretix</a>'),
     'redeem_voucher': django.pgettext('widget', 'Redeem a voucher'),
     'redeem': django.pgettext('widget', 'Redeem'),
     'voucher_code': django.pgettext('widget', 'Voucher code'),
@@ -1032,8 +1030,7 @@ Vue.component('pretix-widget', {
         + '<pretix-widget-event-list v-if="$root.view === \'events\'"></pretix-widget-event-list>'
         + '<pretix-widget-event-calendar v-if="$root.view === \'weeks\'"></pretix-widget-event-calendar>'
         + '<div class="pretix-widget-clear"></div>'
-        + '<div class="pretix-widget-attribution">'
-        + strings.poweredby
+        + '<div class="pretix-widget-attribution" v-if="$root.poweredby" v-html="$root.poweredby">'
         + '</div>'
         + '</div>'
         + '</div>'
@@ -1159,6 +1156,7 @@ var shared_root_methods = {
                 root.has_seating_plan = data.has_seating_plan;
                 root.itemnum = data.itemnum;
             }
+            root.poweredby = data.poweredby;
             if (root.loading > 0) {
                 root.loading--;
                 root.trigger_load_callback();
@@ -1327,6 +1325,7 @@ var create_widget = function (element) {
                 cart_exists: false,
                 itemcount: 0,
                 overlay: null,
+                poweredby: "",
                 has_seating_plan: false
             }
         },