Added application that adds a topology overlay displaying additional statistics of links.

Change-Id: Ie82ce67ead64b9b62d6ab55f3ef8ac0f62946d9f
diff --git a/apps/linkprops/src/main/resources/app/view/lpTopov/lpTopovOverlay.js b/apps/linkprops/src/main/resources/app/view/lpTopov/lpTopovOverlay.js
new file mode 100644
index 0000000..7cb966f
--- /dev/null
+++ b/apps/linkprops/src/main/resources/app/view/lpTopov/lpTopovOverlay.js
@@ -0,0 +1,110 @@
+// Link props topology overlay - client side
+//
+// This is the glue that binds our business logic (in lpTopov.js)
+// to the overlay framework.
+
+(function () {
+    'use strict';
+
+    // injected refs
+    var $log, tov, stds;
+
+    // internal state should be kept in the service module (not here)
+
+    // our overlay definition
+    var overlay = {
+        // NOTE: this must match the ID defined in AppUiTopovOverlay
+        overlayId: 'linkprops-overlay',
+        glyphId: 'topo',
+        tooltip: 'Link Properties',
+
+        activate: function () {
+            $log.debug("Link Props topology overlay ACTIVATED");
+        },
+        deactivate: function () {
+            stds.stopDisplay();
+            $log.debug("Link Props topology overlay DEACTIVATED");
+        },
+
+        // Key bindings for traffic overlay buttons
+        // NOTE: fully qual. button ID is derived from overlay-id and key-name
+        keyBindings: {
+            0: {
+                cb: function () { stds.stopDisplay(); },
+                tt: 'Cancel Display Mode',
+                gid: 'xMark'
+            },
+            V: {
+                cb: function () { stds.startDisplay('rate'); },
+                tt: 'Start Rate Mode',
+                gid: 'ports'
+            },
+            F: {
+                cb: function () { stds.startDisplay('byte'); },
+                tt: 'Start Total Byte Mode',
+                gid: 'allTraffic'
+            },
+            C: {
+                cb: function () { stds.startDisplay('band'); },
+                tt: 'Start Available Bandwidth Mode',
+                gid: 'triangleUp'
+            },
+            G: {
+                cb: buttonCallback,
+                tt: 'Uses the G key',
+                gid: 'crown'
+            },
+
+            _keyOrder: [
+                '0', 'V', 'F', 'C', 'G'
+            ]
+        },
+
+        hooks: {
+            // hook for handling escape key
+            // Must return true to consume ESC, false otherwise.
+            escape: function () {
+                // Must return true to consume ESC, false otherwise.
+                return stds.stopDisplay();
+            },
+
+            // hooks for when the selection changes...
+            empty: function () {
+                selectionCallback('empty');
+            },
+            single: function (data) {
+                selectionCallback('single', data);
+            },
+            mouseover: function (m) {
+                // m has id, class, and type properties
+                $log.debug('mouseover:', m);
+                stds.updateDisplay(m);
+            },
+            mouseout: function () {
+                $log.debug('mouseout');
+                stds.updateDisplay();
+            }
+        }
+    };
+
+
+    function buttonCallback(x) {
+        $log.debug('Toolbar-button callback', x);
+    }
+
+    function selectionCallback(x, d) {
+        $log.debug('Selection callback', x, d);
+    }
+
+    // invoke code to register with the overlay service
+    angular.module('ovLpTopov')
+        .run(['$log', 'TopoOverlayService', 'LinkPropsTopovService',
+
+        function (_$log_, _tov_, _stds_) {
+            $log = _$log_;
+            tov = _tov_;
+            stds = _stds_;
+            tov.register(overlay);
+        }]);
+
+}());
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