add TRACK_NAME and TRACK_NAME_COLOURED placeholders

pretalx_broadcast_tools/templates/pretalx_broadcast_tools/orga.html

@@ -45,6 +45,9 @@
 
             <dt><code>{TALK_URL}</code></dt>
             <dd>URL to the talk detail page.</dd>
+
+            <dt><code>{TRACK_NAME}</code> or <code>{TRACK_NAME_COLOURED}</code></dt>
+            <dd>Track name in plain text or coloured using the track colour.</dd>
         </dl>
 
         <fieldset>

pretalx_broadcast_tools/utils/placeholders.py

@@ -1,8 +1,10 @@
 from django.conf import settings
 
 
-def placeholders(schedule, talk):
-    return {
+def placeholders(schedule, talk, supports_html_colour=False):
+    track_name = str(talk.submission.track.name) if talk.submission.track else ""
+
+    result = {
         "CODE": talk.submission.code,
         "EVENT_SLUG": str(schedule.event.slug),
         "FEEDBACK_URL": "{}{}".format(
@@ -14,4 +16,17 @@ def placeholders(schedule, talk):
             schedule.event.custom_domain or settings.SITE_URL,
             talk.submission.urls.public,
         ),
+        "TRACK_NAME": track_name,
     }
+
+    if talk.submission.track and supports_html_colour:
+        result["TRACK_NAME_COLOURED"] = '<span style="color: {}">{}</span>'.format(
+            talk.submission.track.color, track_name
+        )
+    else:
+        result["TRACK_NAME_COLOURED"] = track_name
+
+    # for the americans
+    result["TRACK_NAME_COLORED"] = result["TRACK_NAME_COLOURED"]
+
+    return result

pretalx_broadcast_tools/views/schedule.py

@@ -60,7 +60,11 @@ class BroadcastToolsScheduleView(EventPermissionRequired, ScheduleMixin, View):
                             if talk.submission.track
                             else None,
                             "room": room["name"].localize(schedule.event.locale),
-                            "infoline": infoline.format(**placeholders(schedule, talk)),
+                            "infoline": infoline.format(
+                                **placeholders(
+                                    schedule, talk, supports_html_colour=True
+                                )
+                            ),
                             "image_url": talk.submission.image_url,
                             "locale": talk.submission.content_locale,
                             "do_not_record": talk.submission.do_not_record,