Allow overriding suit config by request for demos. Layout switch for …

…demo

demo/demo/templates/admin/base_site.html

@@ -1,8 +1,47 @@
 {% extends 'admin/base_site.html' %}
-{# This is how you can extend admin by custom CSS or JS files #}
+{% load suit_tags %}
 
+{# Following is an example how to extend admin by custom CSS or JS files #}
 {# Add extra CSS for admin #}
 {#{% block extrastyle %}#}
 {#    {{ block.super }}#}
 {#    <link rel="stylesheet" href="{% static 'css/admin.css' %}">#}
 {#{% endblock %}#}
+
+{#{% block foot %}#}
+{#    {{ block.super }}#}
+{#    <script type="text/javascript"></script>#}
+{#{% endblock %}#}
+
+
+
+{# Switch for demonstration purposes, not indended for production use #}
+{% block usertools %}
+    {% with suit_layout='layout'|suit_conf:request %}
+        {% if suit_layout == 'horizontal' %}
+            <a href="{% url 'admin:index' %}?__suit_layout=vertical" class="demo-layout-switch">
+                Switch to vertical
+            </a>
+        {% else %}
+            <a href="{% url 'admin:index' %}?__suit_layout=horizontal" class="demo-layout-switch">
+                Switch to horizontal
+            </a>
+        {% endif %}
+
+        {{ block.super }}
+
+    {% endwith %}
+
+    <style type="text/css">
+        body #header a.demo-layout-switch {
+            color: #687086;
+        }
+
+        body.suit_layout_vertical .demo-layout-switch {
+            background-color: #383D4B;
+            order: 10;
+            text-align: center;
+            padding: .5rem 0;
+        }
+    </style>
+{% endblock %}

suit/config.py

@@ -22,6 +22,16 @@ def get_config_instance(app_name=None):
 
 def get_config(param=None, request=None):
     suit_config = get_config_instance(get_current_app(request) if request else None)
+
+    # Allow overriding suit config by request
+    # Used only for demo purposes
+    req_key = '__suit_config_by_request'
+    if request and not hasattr(req_key, req_key):
+        setattr(request, req_key, True)
+        for k, v in request.GET.items():
+            if k.startswith('__suit_'):
+                setattr(suit_config, k[7:], v)
+
     if param:
         value = getattr(suit_config, param, None)
         if value is None: