Support to delete instance from network topology view

When try to delete an instance in network topology view, horizon would
try to load project/instance table in background, then do the delete
row action to the instance.
But the project instance table was paginated, it only load the first
page instances. The delete action would not work if you try to delete
an instance that are not in the first page.
The patch try to fix the bug.

Change-Id: I317bd1ee418d19c075ae3ac8d39563a0514b1795
Closes-Bug: #1597677

3 files changed, 19 insertions, 4 deletions

diff --git a/openstack_dashboard/dashboards/project/network_topology/views.py b/openstack_dashboard/dashboards/project/network_topology/views.py
index b7c3955c4..4bc3b4d83 100644
--- a/openstack_dashboard/dashboards/project/network_topology/views.py
+++ b/openstack_dashboard/dashboards/project/network_topology/views.py
@@ -159,6 +159,19 @@ class InstanceView(i_views.IndexView):
     table_class = instances_tables.InstancesTable
     template_name = 'project/network_topology/iframe.html'
 
+    def get_data(self):
+        self._more = False
+        # Get instance by id, return a list of one instance
+        # If failed to retrieve the instance, return an empty list
+        try:
+            instance_id = self.request.GET.get("id", "")
+            instance = api.nova.server_get(self.request, instance_id)
+            return [instance]
+        except Exception:
+            exceptions.handle(self.request,
+                              _('Unable to retrieve the instance.'))
+            return []
+
 
 class RouterView(r_views.IndexView):
     table_class = routers_tables.RoutersTable
diff --git a/openstack_dashboard/static/js/horizon.flatnetworktopology.js b/openstack_dashboard/static/js/horizon.flatnetworktopology.js
index 7e56562c8..0d0f27749 100644
--- a/openstack_dashboard/static/js/horizon.flatnetworktopology.js
+++ b/openstack_dashboard/static/js/horizon.flatnetworktopology.js
@@ -493,9 +493,10 @@ horizon.flat_network_topology = {
     }
     return str;
   },
-  delete_device: function(type, device_id) {
+  delete_device: function(device_type, device_id) {
     var message = {id:device_id};
-    horizon.networktopologymessager.post_message(device_id,type,message,type,'delete',data={});
+    var target = device_type === 'instance' ? 'instance?id=' + device_id : device_type;
+    horizon.networktopologymessager.post_message(device_id, target, message, device_type, 'delete', data={});
   },
   delete_port: function(router_id, port_id, network_id) {
     var message = {id:port_id};
diff --git a/openstack_dashboard/static/js/horizon.networktopology.js b/openstack_dashboard/static/js/horizon.networktopology.js
index 995f4f60c..d6b817594 100644
--- a/openstack_dashboard/static/js/horizon.networktopology.js
+++ b/openstack_dashboard/static/js/horizon.networktopology.js
@@ -853,9 +853,10 @@ horizon.network_topology = {
     return this.vis.selectAll('line.link').data(this.links).exit().remove();
   },
 
-  delete_device: function(type, deviceId) {
+  delete_device: function(device_type, deviceId) {
     var message = {id:deviceId};
-    horizon.networktopologymessager.post_message(deviceId,type,message,type,'delete',data={});
+    var target = device_type === 'instance' ? 'instance?id=' + deviceId : device_type;
+    horizon.networktopologymessager.post_message(deviceId, target, message, device_type, 'delete', data={});
   },
 
   remove_node_on_delete: function(deleteData) {