navigate from space graph to level graph

src/c3nav/editor/static/editor/js/editor.js

@@ -610,6 +610,7 @@ editor = {
     _dblclick_graph_other_space: function(e) {
         // click callback for an other graph space
         if (editor._loading_geometry) return;
+        editor._next_zoom = true;
         $('#id_goto_space').val(e.target.feature.properties.id).closest('form').submit();
         editor.map.doubleClickZoom.disable();
     },

src/c3nav/editor/templates/editor/graph.html

@@ -21,6 +21,11 @@
 <p>
     <a href="{{ back_url }}">&laquo; {{ back_title }}</a>
 </p>
+{% if parent_url %}
+    <p>
+        <a href="{{ parent_url }}">&laquo; {{ parent_title }}</a>
+    </p>
+{% endif %}
 {% bootstrap_messages %}
 
 {% if set_active_node %}
@@ -35,7 +40,7 @@
     <div data-active-node class="well well-sm"></div>
 {% endif %}
 
-<form action="{{ request.path }}" method="post" data-graph-editing="{{ graph_editing }}" {% if nozoom %}data-nozoom {% endif %}>
+<form action="{{ request.path }}" method="post" data-graph-editing="{{ graph_editing }}" data-nozoom>
     {% csrf_token %}
 
     <h4>{% trans 'Default node properties' %}</h4>

src/c3nav/editor/views/edit.py

@@ -372,6 +372,8 @@ def graph_edit(request, level=None, space=None):
             'level': space.level,
             'back_url': reverse('editor.spaces.detail', kwargs={'level': space.level.pk, 'pk': space.pk}),
             'back_title': _('back to space'),
+            'parent_url': reverse('editor.levels.graph', kwargs={'level': space.level.pk}),
+            'parent_title': _('to level graph'),
             'geometry_url': '/api/editor/geometries/?space='+str(space.pk),
         })
         if graph_editing_settings['click_anywhere'] != 'noop':
@@ -418,10 +420,6 @@ def graph_edit(request, level=None, space=None):
                     'set_active_node': set_active_node,
                     'active_node': active_node,
                 })
-
-        ctx.update({
-            'nozoom': True,
-        })
     else:
         node_settings_form = GraphNodeSettingsForm()
         edge_settings_form = GraphEdgeSettingsForm(request=request)