Added Flash info for toggle summary keycommand
Clear and re-render summary panel on websocket update event
Added topo2 Panel Service

Change-Id: Ib9e6f887816d133af61cb0312c4dacd95641228d
diff --git a/web/gui/src/main/webapp/app/view/topo2/topo2Panel.js b/web/gui/src/main/webapp/app/view/topo2/topo2Panel.js
new file mode 100644
index 0000000..bfd2a3f
--- /dev/null
+++ b/web/gui/src/main/webapp/app/view/topo2/topo2Panel.js
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ ONOS GUI -- Topology Layout Module.
+ Module that contains the d3.force.layout logic
+ */
+
+(function () {
+    'use strict';
+
+    var ps;
+
+    var Panel = function (id, options) {
+        this.id = id;
+        this.p = ps.createPanel(this.id, options);
+        this.setup();
+
+        this.p.show();
+    };
+
+    Panel.prototype = {
+        setup: function () {
+            var panel = this.p;
+            panel.empty();
+
+            panel.append('div').classed('header', true);
+            panel.append('div').classed('body', true);
+            panel.append('div').classed('footer', true);
+
+            this.header = panel.el().select('.header');
+            this.body = panel.el().select('.body');
+            this.footer = panel.el().select('.body');
+        },
+        appendToHeader: function (x) {
+            return this.header.append(x);
+        },
+        appendToBody: function (x) {
+            return this.body.append(x);
+        },
+        appendToFooter: function (x) {
+            return this.footer.append(x);
+        },
+        emptyRegions: function () {
+            this.header.selectAll("*").remove();
+            this.body.selectAll("*").remove();
+            this.footer.selectAll("*").remove();
+        },
+        destory: function () {
+            ps.destroy(this.id);
+        }
+    };
+
+    angular.module('ovTopo2')
+    .factory('Topo2PanelService', ['PanelService',
+        function (_ps_) {
+            ps = _ps_;
+            return Panel;
+        }
+    ]);
+
+})();