frontpage: Fix regression in showing description

- After the shortcuts were turned into a list instead of dictionary, the
  descriptions stopped showing in the front page due to an 'in' check
  that worked for dict.  Fix this by changing the shortcuts into a
  dictionary.

- Also make the key of the shortcut dict an 'id' instead of 'app' that
  could create confusion how an app maps to a shortcut.

- Minor indentation fixes.

plinth/frontpage.py

@@ -19,33 +19,38 @@
 Manage application shortcuts on front page.
 """
 
-shortcuts = []
+shortcuts = {}
 
 
 def get_shortcuts():
     """Return menu items in sorted order according to current locale."""
-    return sorted(shortcuts, key=lambda x: x['label'])
+    return sorted(shortcuts.values(), key=lambda item: item['label'])
 
 
-def add_shortcut(app, label, url, icon, details=None):
+def add_shortcut(id, label, url, icon, details=None):
     """Add shortcut to front page."""
-    shortcuts.append({
-        'app': app,
+    shortcuts[id] = {
+        'id': id,
         'label': label,
         'url': url,
         'icon': icon,
         'details': details,
-    })
+    }
 
 
-def remove_shortcut(app):
+def remove_shortcut(id):
     """
     Remove shortcut from front page.
 
-    If app ends with *, remove all shortcuts with that prefix.
+    If id ends with *, remove all shortcuts with that prefix.
     """
-    match = lambda x: x['app'] == app
-    if app[-1] == '*':
-        match = lambda x: x['app'].startswith(app[:-1])
+    def match(item):
+        if id[-1] == '*':
+            return item['id'].startswith(id[:-1])
 
-    shortcuts[:] = [shortcut for shortcut in shortcuts if not match(shortcut)]
+        return item['id'] == id
+
+    global shortcuts
+    shortcuts = {id: shortcut
+                 for id, shortcut in shortcuts.items()
+                 if not match(shortcut)}

plinth/templates/index.html

@@ -23,39 +23,37 @@
 {% block content %}
 
   <div class="row">
-  {% if shortcuts %}
+    {% if shortcuts %}
 
-    {% for shortcut in shortcuts %}
-      <div class="col-sm-4">
-        <ul class="nav nav-pills nav-stacked">
-          {% if selected_app == shortcut.app %}
-            <li class="active">
-              <a href="{{ shortcut.url }}" class="active">
-          {% else %}
-            <li>
-              <a href="{{ shortcut.url }}">
-          {% endif %}
-                <span class="{{ shortcut.icon }} glyphicon"></span>
-                {{ shortcut.label }}
-              </a>
-            </li>
-        </ul>
-      </div>
-    {% endfor %}
+      {% for shortcut in shortcuts %}
+        <div class="col-sm-4">
+          <ul class="nav nav-pills nav-stacked">
+            {% if selected_id == shortcut.id %}
+              <li class="active">
+                <a href="{{ shortcut.url }}" class="active">
+            {% else %}
+              <li>
+                <a href="{{ shortcut.url }}">
+            {% endif %}
+                  <span class="{{ shortcut.icon }} glyphicon"></span>
+                  {{ shortcut.label }}
+                </a>
+              </li>
+          </ul>
+        </div>
+      {% endfor %}
 
-  {% else %}
+    {% else %}
 
-    <h4>
-      {% url 'apps:index' as apps_url %}
-      {% blocktrans trimmed %}
+      <h4>
+        {% url 'apps:index' as apps_url %}
+        {% blocktrans trimmed %}
+          Enable some <a href="{{ apps_url }}">applications</a> to add
+          shortcuts to this page.
+        {% endblocktrans %}
+      </h4>
 
-        Enable some <a href="{{ apps_url }}">applications</a> to add
-        shortcuts to this page.
-
-      {% endblocktrans %}
-    </h4>
-
-  {% endif %}
+    {% endif %}
   </div>
 
   <br>
@@ -67,7 +65,7 @@
 
       {% for paragraph in details %}
         <div class="panel-body">
-	  {{ paragraph|safe }}
+          {{ paragraph|safe }}
         </div>
       {% endfor %}
     </div>
@@ -86,32 +84,26 @@
 
   <p>
     {% blocktrans trimmed %}
-
       {{ box_name }}, a Debian pure blend, is a 100% free software
       self-hosting web server to deploy social applications on small
       machines. It provides online communication tools respecting your
       privacy and data ownership.
-
     {% endblocktrans %}
   </p>
 
   <p>
     {% blocktrans trimmed %}
-
       More info about {{ box_name }} is available on the
       project <a href="https://freedombox.org">homepage</a>
       and <a href="https://wiki.debian.org/FreedomBox">wiki</a>.
-
     {% endblocktrans %}
   </p>
 
   <p>
     {% blocktrans trimmed %}
-
       This portal is a part of Plinth, the {{ box_name }} web
       interface. Plinth is free software, distributed under the GNU
       Affero General Public License, Version 3 or later.
-
     {% endblocktrans %}
   </p>
 

plinth/views.py

@@ -46,7 +46,7 @@ def index(request):
     return TemplateResponse(request, 'index.html',
                             {'title': _('FreedomBox'),
                              'shortcuts': shortcuts,
-                             'selected_app': selection,
+                             'selected_id': selection,
                              'details': details,
                              'details_label': details_label})