add some settings for 'currently no talk running', add configurable info line

pretalx_lower_thirds/forms.py

@@ -0,0 +1,17 @@
+from django import forms
+from django.utils.translation import gettext_lazy as _
+from hierarkey.forms import HierarkeyForm
+
+
+class LowerThirdsSettingsForm(HierarkeyForm):
+    lower_thirds_no_talk_info = forms.CharField(
+        help_text='Will be shown as talk title if there\'s currently no talk running.',
+        initial = 'Sorry, there\'s currently no talk running',
+        label='"no talk running" information',
+        required=True,
+    )
+    lower_thirds_info_string = forms.CharField(
+        initial='',
+        label='info line',
+        required=False,
+    )

pretalx_lower_thirds/signals.py

@@ -1 +1,18 @@
-# Register your receivers here
+from django.dispatch import receiver
+from django.urls import resolve, reverse
+from django.utils.translation import ugettext_lazy as _
+from pretalx.orga.signals import nav_event_settings
+
+
+@receiver(nav_event_settings)
+def navbar_info(sender, request, **kwargs):
+    url = resolve(request.path_info)
+    if not request.user.has_perm('orga.change_settings', request.event):
+        return []
+    return [{
+        'label': _('lower thirds'),
+        'url': reverse('plugins:pretalx_lower_thirds:orga', kwargs={
+            'event': request.event.slug,
+        }),
+        'active': url.namespace == 'plugins:pretalx_lower_thirds' and url.url_name == 'orga',
+    }]

pretalx_lower_thirds/static/pretalx_lower_thirds/frontend.css

@@ -28,3 +28,8 @@
 #speaker {
     font-size: 20px;
 }
+
+#info_line {
+    font-size: 16px;
+    text-align: right;
+}

pretalx_lower_thirds/static/pretalx_lower_thirds/update.js

@@ -49,9 +49,11 @@ function update_lower_third() {
     if (current_talk) {
         $('#title').text(current_talk['title']);
         $('#speaker').text(current_talk['persons'].join(', '));
+        $('#info_line').text(current_talk['infoline']);
     } else {
-        $('#title').text('Currently no talk');
+        $('#title').text(schedule['conference']['no_talk']);
         $('#speaker').text('');
+        $('#info_line').text('');
     }
 
     if (current_talk && current_talk['track']) {

pretalx_lower_thirds/templates/pretalx_lower_thirds/lower_thirds.html

@@ -20,6 +20,7 @@
         <div id="box">
             <p id="title">Loading ...</p>
             <p id="speaker">Content should appear soon. If not, please verify you have Javascript enabled.</p>
+            <p id="info_line"></p>
         </div>
     </body>
 </html>

pretalx_lower_thirds/templates/pretalx_lower_thirds/orga.html

@@ -0,0 +1,37 @@
+{% extends "orga/base.html" %}
+{% load bootstrap4 %}
+{% load i18n %}
+
+{% block content %}
+    <h2>{% trans "Set up lower thirds" %}</h2>
+    <form method="post">
+        {% csrf_token %}
+        {% bootstrap_form form layout='event' %}
+        <p>
+            The info line will be shown on the bottom right side of your
+            lower third. If you set it to an empty string, it will automatically
+            hide itself.
+        </p>
+        <p>
+            pretalx will automatically replace some placeholders in your info
+            string.
+            Use <code>{CODE}</code> to embed the talk code (<code>MUX9U3</code>
+            for example). You could use this to directly link to the talk
+            feedback page.
+            Use <code>{EVENT_SLUG}</code> to get the event slug.
+            Use <code>{TALK_SLUG}</code> to get the talk slug.
+        </p>
+        <div class="submit-group panel">
+            <span></span>
+            <span class="d-flex flex-row-reverse">
+                <button
+                    type="submit" class="btn btn-success btn-lg"
+                    name="action" value="save"
+                >
+                    <i class="fa fa-check"></i>
+                    {% trans "Save" %}
+                </button>
+            </span>
+        </div>
+    </form>
+{% endblock %}

pretalx_lower_thirds/urls.py

@@ -15,4 +15,10 @@ urlpatterns = [
         views.ScheduleView.as_view(),
         name="schedule",
     ),
+
+    re_path(
+        f"^orga/event/(?P<event>[{SLUG_CHARS}]+)/p/lower-thirds/$",
+        views.LowerThirdsOrgaView.as_view(),
+        name="orga",
+    ),
 ]

pretalx_lower_thirds/views.py

@@ -11,19 +11,42 @@ from django.urls import reverse
 from django.utils.functional import cached_property
 from django.utils.timezone import now
 from django.utils.translation import gettext_lazy as _
+from django.views.generic import FormView
 from django.views.generic.base import TemplateView
 from django_context_decorator import context
 
 from pretalx.agenda.views.schedule import ScheduleMixin
-from pretalx.common.mixins.views import EventPermissionRequired
+from pretalx.common.mixins.views import EventPermissionRequired, PermissionRequired
 from pretalx.common.signals import register_data_exporters
 from pretalx.schedule.exporters import ScheduleData
 
+from .forms import LowerThirdsSettingsForm
+
 
 class LowerThirdsView(TemplateView):
     template_name = "pretalx_lower_thirds/lower_thirds.html"
 
 
+class LowerThirdsOrgaView(PermissionRequired, FormView):
+    form_class = LowerThirdsSettingsForm
+    permission_required = 'orga.change_settings'
+    template_name = "pretalx_lower_thirds/orga.html"
+
+    def get_success_url(self):
+        return self.request.path
+
+    def form_valid(self, form):
+        form.save()
+        return super().form_valid(form)
+
+    def get_object(self):
+        return self.request.event
+
+    def get_form_kwargs(self):
+        kwargs = super().get_form_kwargs()
+        return {'obj': self.request.event, 'attribute_name': 'settings', **kwargs}
+
+
 class ScheduleView(EventPermissionRequired, ScheduleMixin, TemplateView):
     permission_required = "agenda.view_schedule"
 
@@ -38,6 +61,7 @@ class ScheduleView(EventPermissionRequired, ScheduleMixin, TemplateView):
                 "conference": {
                     "slug": schedule.event.slug,
                     "name": str(schedule.event.name),
+                    "no_talk": str(schedule.event.settings.lower_thirds_no_talk_info),
                 },
                 "rooms": sorted({
                     str(room["name"])
@@ -59,6 +83,11 @@ class ScheduleView(EventPermissionRequired, ScheduleMixin, TemplateView):
                             "name": str(talk.submission.track.name),
                         } if talk.submission.track else None,
                         "room": str(room["name"]),
+                        "infoline": str(schedule.event.settings.lower_thirds_info_string).format(
+                            EVENT_SLUG=str(schedule.event.slug),
+                            TALK_SLUG=talk.frab_slug,
+                            CODE=talk.submission.code,
+                        ),
                     }
                     for day in schedule.data
                     for room in day["rooms"]