[Indicators] Add notion of indicators

Add indicators as a category-of-extension, utilized
from the bottom bar to populate its contents.
WTD-608.

platform/commonUI/general/bundle.json

@@ -42,6 +42,11 @@
                 "key": "ViewSwitcherController",
                 "implementation": "ViewSwitcherController.js",
                 "depends": [ "$scope" ]
+            },
+            {
+                "key": "BottomBarController",
+                "implementation": "BottomBarController.js",
+                "depends": [ "indicators[]" ]
             }
         ],
         "directives": [

platform/commonUI/general/res/templates/bottombar.html

@@ -1,13 +1,23 @@
-<div class='abs bottom-bar ue-bottom-bar'>
+<div class='abs bottom-bar ue-bottom-bar' ng-controller="BottomBarController as bar">
     <div id='status' class='status-holder abs'>
-        <div id='status_data_flow' class='status block data-flow'>
-            <span class='ui-symbol status-indicator ok'>.</span>
-            <span class='label'>Connected</span>
+        <div ng-repeat="indicator in bar.getIndicators()"
+             class='status block'
+             ng-class='indicator.getClass()'>
+            <span class="ui-symbol status-indicator"
+                  ng-class='indicator.getGlyphClass()'>
+                {{indicator.getGlyph()}}
+            </span>
+            <span class="label"
+                  ng-class='indicator.getTextClass()'>
+                {{indicator.getText()}}
+            </span>
+            <a href=''
+               class="ui-symbol"
+               ng-if="indicator.configure"
+               ng-click="indicator.configure()">
+                G
+            </a>
         </div>
-        <!--div id='status_data_connection' class='status block data-connection'>
-            <span class='ui-symbol status-indicator caution'>D</span>
-            <span class='label'>Connected CPU 0.1% / Mem 1.9%</span>
-        </div-->
     </div>
     <!--mct-include key="'app-logo'"></mct-include-->
 </div>

platform/commonUI/general/src/BottomBarController.js

@@ -0,0 +1,36 @@
+/*global define*/
+
+define(
+    [],
+    function () {
+        "use strict";
+
+        /**
+         * Controller for the bottombar template. Exposes
+         * available indicators (of extension category "indicators")
+         * @constructor
+         */
+        function BottomBarController(indicators) {
+            // Utility function used to instantiate indicators
+            // from their injected constructors.
+            function instantiate(Indicator) {
+                return new Indicator();
+            }
+
+            indicators = indicators.map(instantiate);
+
+            return {
+                /**
+                 * Get all indicators to display.
+                 * @returns {Indicator[]} all indicators
+                 *          to display in the bottom bar.
+                 */
+                getIndicators: function () {
+                    return indicators;
+                }
+            };
+        }
+
+        return BottomBarController;
+    }
+);