adding inventory button

awx/ui/static/js/controllers/Inventories.js

@@ -895,18 +895,29 @@ export function InventoriesManage ($log, $scope, $rootScope, $location,
         // you need this so that the event doesn't bubble to the watcher above
         // for the host list
         e.stopPropagation();
-        if (selection.length > 0) {
-            $scope.hostsSelected = true;
-            // $scope.adhocButtonTipContents = "Launch adhoc command for the "
-            //     + "selected groups and hosts.";
-        } else {
+        if (selection.length === 0) {
             $scope.hostsSelected = false;
-            // $scope.adhocButtonTipContents = "Launch adhoc command for the "
-            //     + "inventory.";
+        } else if (selection.length === 1) {
+            $scope.systemTrackingTooltip = "Compare host over time";
+            $scope.hostsSelected = true;
+            $scope.systemTrackingDisabled = false;
+        } else if (selection.length === 2) {
+            $scope.systemTrackingTooltip = "Compare hosts against each other";
+            $scope.hostsSelected = true;
+            $scope.systemTrackingDisabled = false;
+        } else {
+            $scope.hostsSelected = true;
+            $scope.systemTrackingDisabled = true;
         }
         $scope.hostsSelectedItems = selection.selectedItems;
     });
 
+    $scope.systemTracking = function() {
+        $location.path('/inventories/' + $scope.inventory.id +
+            '/system-tracking/' +
+            _.pluck($scope.hostsSelectedItems, "id").join(","));
+    };
+
     // populates host patterns based on selected hosts/groups
     $scope.populateAdhocForm = function() {
         var host_patterns = "all";

awx/ui/static/js/lists/InventoryHosts.js

@@ -87,6 +87,16 @@ export default
         },
 
         actions: {
+            system_tracking: {
+                label: 'System Tracking',
+                ngClick: 'systemTracking()', //'editInventoryProperties(inventory.id)',
+                awToolTip: "{{ systemTrackingTooltip }}",
+                dataTipWatch: "systemTrackingTooltip",
+                dataPlacement: 'top',
+                awFeature: 'system_tracking',
+                ngDisabled: 'systemTrackingDisabled',
+                ngShow: 'hostsSelected'
+            },
             create: {
                 mode: 'all',
                 ngClick: "createHost()",
@@ -103,7 +113,7 @@ export default
                 awToolTip: "View Activity Stream",
                 mode: 'all',
                 awFeature: 'activity_streams'
-            }
+            },
         }
 
     });

awx/ui/static/js/shared/generator-helpers.js

@@ -103,6 +103,9 @@ angular.module('GeneratorHelpers', [systemStatus.name])
                 action = params.action,
                 size = params.size;
             switch (action) {
+            case 'system_tracking':
+                icon = "fa-crosshairs";
+                break;
             case 'help':
                 icon = "fa-question-circle";
                 break;

awx/ui/static/js/shared/list-generator/list-actions.partial.html

@@ -12,6 +12,7 @@
         class="options.class"
         data-title="{{options.dataTitle}}"
         icon-size="{{options.iconSize}}"
+        ng-disabled="{{options.ngDisabled}}"
         ng-click="$eval(options.ngClick)"
         ng-hide="isHiddenByOptions(options) ||
                     hiddenOnCurrentPage(options.basePaths) ||