Allow extending GAS media files

gas/gas_settings.py

@@ -18,3 +18,5 @@ MEDIA = getattr(settings, 'GAS_MEDIA', {
         'gas/js/gas.js',
     ],
 })
+
+EXTRA_MEDIA = getattr(settings, 'GAS_EXTRA_MEDIA', None)

gas/templates/gas/base.html

@@ -20,8 +20,8 @@
         <ul id="main-navigation">
             <li>{{ user }}</li>
             <li>
-                <a href="{% url 'gas:change_password' %}"> <i class="fa fa-fw fa-key" title="{% trans "Change password" %}"></i></a>
-                <a href="{% url 'gas:logout' %}"> <i class="fa fa-fw fa-times text-danger" title="{% trans "Logout" %}"></i></a>
+                <a href="{% url 'gas:change_password' %}"> <i class="fas fa-key" title="{% trans "Change password" %}"></i></a>
+                <a href="{% url 'gas:logout' %}"> <i class="fas fa-times" title="{% trans "Logout" %}"></i></a>
             </li>
         </ul>
     </nav>

gas/tests/test_views.py

@@ -243,6 +243,41 @@ class GASMixinTestCase(TestCase):
         with self.assertRaises(ImproperlyConfigured):
             response = view(request)
 
+    def test_extra_css(self):
+        class SampleView(gviews.GASMixin, TemplateView):
+            template_name = 'test.html'
+
+        view = SampleView.as_view()
+        request = self.request_factory.get('some_url')
+
+        request.user = self.admin_user
+        response = view(request)
+        self.assertEqual(response.status_code, 200)
+
+        gas_settings.EXTRA_MEDIA = None
+        response = view(request)
+        self.assertEqual(response.status_code, 200)
+        self.assertNotIn('test.css', response.context_data['css'])
+        self.assertNotIn('test.js', response.context_data['js'])
+
+        gas_settings.EXTRA_MEDIA = {'css': ['test.css']}
+        response = view(request)
+        self.assertEqual(response.status_code, 200)
+        self.assertIn('test.css', response.context_data['css'])
+        self.assertNotIn('test.js', response.context_data['js'])
+
+        gas_settings.EXTRA_MEDIA = {'js': ['test.js']}
+        response = view(request)
+        self.assertEqual(response.status_code, 200)
+        self.assertNotIn('test.css', response.context_data['css'])
+        self.assertIn('test.js', response.context_data['js'])
+
+        gas_settings.EXTRA_MEDIA = {'css': ['test.css'], 'js': ['test.js']}
+        response = view(request)
+        self.assertEqual(response.status_code, 200)
+        self.assertIn('test.css', response.context_data['css'])
+        self.assertIn('test.js', response.context_data['js'])
+
 
 class GASListTestCase(TestCase):
     def test_filtered(self):

gas/views.py

@@ -99,6 +99,11 @@ class GASMixin:
 
     def get_context_data(self, **kwargs):
         ctx = super().get_context_data(**kwargs)
+        css = gas_settings.MEDIA['css']
+        js = gas_settings.MEDIA['js']
+        if gas_settings.EXTRA_MEDIA:
+            css = css + gas_settings.EXTRA_MEDIA.get('css', [])
+            js = js + gas_settings.EXTRA_MEDIA.get('js', [])
         ctx.update({
             'base_template': self.base_template,
             'header_title': self.get_header_title(),
@@ -108,8 +113,8 @@ class GASMixin:
             'actions': self.get_actions(),
             'gas_title': gas_settings.TITLE,
             'logo_static_url': gas_settings.LOGO,
-            'css': gas_settings.MEDIA['css'],
-            'js': gas_settings.MEDIA['js'],
+            'css': css,
+            'js': js,
         })
         return ctx
 

readme.md

@@ -32,6 +32,9 @@ Project settings can customize the `gas` control panel:
 * `GAS_TITLE`: Name of the control panel.
 * `GAS_LOGO`: Icon for the control panel.
 * `GAS_MEDIA`: A django form's Media like dict with css and js files.
+  Overrides default css and javascript.
+* `GAS_EXTRA_MEDIA`: A django form's Media like dict with css and js
+  files. Extends current css and javascript instead of overriding.
 
 The default values of those settings can be viewed in the
 `gas/gas_settings.py` file.