Initial context sidebar tab

Gruntfile.js

@@ -149,6 +149,7 @@ module.exports = function(grunt) {
                     "editor/js/ui/palette.js",
                     "editor/js/ui/tab-info.js",
                     "editor/js/ui/tab-config.js",
+                    "editor/js/ui/tab-context.js",
                     "editor/js/ui/palette-editor.js",
                     "editor/js/ui/editor.js",
                     "editor/js/ui/tray.js",

editor/js/keymap.json

@@ -10,6 +10,7 @@
         "ctrl-g i": "core:show-info-tab",
         "ctrl-g d": "core:show-debug-tab",
         "ctrl-g c": "core:show-config-tab",
+        "ctrl-g x": "core:show-context-tab",
         "ctrl-e": "core:show-export-dialog",
         "ctrl-i": "core:show-import-dialog",
         "ctrl-space": "core:toggle-sidebar",

editor/js/ui/sidebar.js

@@ -218,6 +218,7 @@ RED.sidebar = (function() {
         showSidebar();
         RED.sidebar.info.init();
         RED.sidebar.config.init();
+        RED.sidebar.context.init();
         // hide info bar at start if screen rather narrow...
         if ($(window).width() < 600) { RED.menu.setSelected("menu-item-sidebar",false); }
     }

editor/js/ui/tab-context.js

@@ -0,0 +1,41 @@
+/**
+ * Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * 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.
+ **/
+RED.sidebar.context = (function() {
+    var content;
+
+    function init() {
+        content = document.createElement("div");
+        content.className = "sidebar-node-info"
+
+        RED.actions.add("core:show-context-tab",show);
+
+        RED.sidebar.addTab({
+            id: "context",
+            label: RED._("sidebar.context.label"),
+            name: RED._("sidebar.context.name"),
+            iconClass: "fa fa-database",
+            content: content,
+            pinned: false,
+            enableOnEdit: false
+        });
+    }
+    function show() {
+        RED.sidebar.show("context");
+    }
+    return {
+        init: init
+    }
+})();

red/api/editor/locales/en-US/editor.json

@@ -459,6 +459,10 @@
             "filterAll":"all",
             "filtered": "__count__ hidden"
         },
+        "context": {
+            "name":"Context",
+            "label":"context"
+        },
         "palette": {
             "name": "Palette management",
             "label": "palette"