Widget: Fix waiting list integration of seated events (#3323)

src/pretix/presale/views/waiting.py

@@ -33,7 +33,7 @@ from django.views.generic import FormView, TemplateView
 from pretix.base.models import Quota, SubEvent
 from pretix.base.templatetags.urlreplace import url_replace
 from pretix.multidomain.urlreverse import eventreverse
-from pretix.presale.views import EventViewMixin
+from pretix.presale.views import EventViewMixin, iframe_entry_view_wrapper
 
 from ...base.i18n import get_language_without_region
 from ...base.models import Voucher, WaitingListEntry
@@ -42,6 +42,7 @@ from . import allow_frame_if_namespaced
 
 
 @method_decorator(allow_frame_if_namespaced, 'dispatch')
+@method_decorator(iframe_entry_view_wrapper, 'dispatch')
 class WaitingView(EventViewMixin, FormView):
     template_name = 'pretixpresale/event/waitinglist.html'
     form_class = WaitingListForm

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

@@ -894,7 +894,7 @@ Vue.component('pretix-widget-event-form', {
         + strings['seating_plan_waiting_list']
         + '</div>'
         + '<div class="pretix-widget-seating-waitinglist-button-wrap">'
-        + '<button class="pretix-widget-seating-waitinglist-button" @click.prevent.stop="$root.startseating">'
+        + '<button class="pretix-widget-seating-waitinglist-button" @click.prevent.stop="$root.startwaiting">'
         + strings['waiting_list']
         + '</button>'
         + '</div>'
@@ -1649,6 +1649,20 @@ var shared_root_methods = {
             }
         });
     },
+    startwaiting: function () {
+        var redirect_url = this.$root.target_url + 'w/' + widget_id;
+        if (this.$root.subevent){
+            redirect_url += '/' + this.$root.subevent;
+        }
+        redirect_url += '/waitinglist/?iframe=1&locale=' + lang;
+        if (this.$root.useIframe) {
+            var iframe = this.$root.overlay.$children[0].$refs['frame-container'].children[0];
+            this.$root.overlay.frame_loading = true;
+            iframe.src = redirect_url;
+        } else {
+            window.open(redirect_url);
+        }
+    },
     startseating: function () {
         var redirect_url = this.$root.target_url + 'w/' + widget_id;
         if (this.$root.subevent){