From 8ce7f52edb7fc20e726a9a51c717598a0d393aef Mon Sep 17 00:00:00 2001
From: David Dean <ddean@ieee.org>
Date: Sun, 15 Oct 2017 19:27:31 +1000
Subject: [PATCH] title is no longer required in frontpage.json

As a result, the jumbotron is completely hidden if none of
title, subtitle, text are set and show_input is False
---
 nbviewer/frontpage.schema.json | 3 +--
 nbviewer/handlers.py           | 4 ++--
 nbviewer/templates/index.html  | 8 ++++----
 3 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/nbviewer/frontpage.schema.json b/nbviewer/frontpage.schema.json
index ed3c7282..b8bc8abf 100644
--- a/nbviewer/frontpage.schema.json
+++ b/nbviewer/frontpage.schema.json
@@ -29,6 +29,5 @@
        ]
      }
    }
- },
- "required": ["title"]
+ }
 }
diff --git a/nbviewer/handlers.py b/nbviewer/handlers.py
index 6d2249b3..9a5fdda3 100644
--- a/nbviewer/handlers.py
+++ b/nbviewer/handlers.py
@@ -35,9 +35,9 @@ class IndexHandler(BaseHandler):
     def get(self):
         self.finish(self.render_template(
             'index.html',
-            title=self.frontpage_setup['title'],
+            title=self.frontpage_setup.get('title', None),
             subtitle=self.frontpage_setup.get('subtitle', None),
-            text=self.frontpage_setup.get('text',None),
+            text=self.frontpage_setup.get('text', None),
             show_input=self.frontpage_setup.get('show_input', True),
             sections=self.frontpage_setup.get('sections', [])))
 
diff --git a/nbviewer/templates/index.html b/nbviewer/templates/index.html
index c076f08e..a535338f 100644
--- a/nbviewer/templates/index.html
+++ b/nbviewer/templates/index.html
@@ -1,11 +1,10 @@
 {% extends "layout.html" %}
 
 {% block body %}
+  {% if title or subtitle or text or show_input %}
   <header class="jumbotron masthead">
-    <h1>{{ title }}</h1>
-    {% if subtitle %}
-    <h2>{{ subtitle }}</h2>
-    {% endif %}
+    {% if title %}<h1>{{ title }}</h1>{% endif %}
+    {% if subtitle %}<h2>{{ subtitle }}</h2>{% endif %}
     {% if text %}
     {{ text | markdown | safe }}
     {% endif %}
@@ -31,6 +30,7 @@ <h2>{{ subtitle }}</h2>
     </div>
     {% endif %} 
   </header>
+  {% endif %}
 
   {% for section in sections %}
     <section>