Initial Fabric support (#1607)

* Add Platform.Fabric to run in context of Fabric

* Use separate StyleConstants

We want to have more flexibility with Styles at runtime
but Constants depend on ConfigContext and therefore
get loaded very early at startup.

* Add Fabric specific styles and Fluent theme

documentDBFabric.less contains all styles for Fabric.
We use React.lazy to import them conditionally at
runtime preventing webpack from preprocessing
them into main.css.

* Restyle CommandBar for Fabric
with more roundness and native colors.

* Disable Notebooks when running in Fabric

* Disable Synapse and Scripts commands for Fabric

* Fix code formatting issues

* Fetch encrypted token from sessionStorage for fabric platform

* Fix Tabs style

* Dark refresh icons for Fabric

* Use new ResourceTree2 for Fabric

* Fluent tree should have a fixed width
otherwise the action buttons jump around on hover.

* Disable remaining Script actions in Fabric

* Revert accidentally committed change
which broke a test

* Fix cross-origin error second try

* Adjust @FabrixBoxMargin css

* Hide Database Scale node on Fabric

* Remove all Collection child nodes on Fabric

* Add a comment about why we need FabricPlatform.tsx

* Fix equality checks

* Fix more Colors for Fabric

* Switch resource tree to "medium" size

* Fix formatting again

* Fix formatting again

* Disable no-var-requires error on some intended var import.

* Increase memory limit for build

* Use standard Segoe UI font for Fabric

* Improve Tabs design for Fabric

* Fix active Tab style bug in Portal
introduced with 39a7765aef

---------

Co-authored-by: Laurent Nguyen <laurent.nguyen@microsoft.com>

.github/workflows/ci.yml

@@ -85,6 +85,8 @@ jobs:
           path: .cache
           key: ${{ runner.os }}-build-cache
       - run: npm run pack:prod
+        env:
+          NODE_OPTIONS: '--max-old-space-size=4096'
       - run: cp -r ./Contracts ./dist/contracts
       - run: cp -r ./configs ./dist/configs
       - uses: actions/upload-artifact@v2

less/Common/Constants.less

@@ -10,6 +10,7 @@
 @DataExplorerFont: wf_segoe-ui_normal, "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif;
 @SemiboldFont: "Segoe UI Semibold", "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif;
 @GrayScale: "grayscale()";
+@NoColor: "brightness(0) saturate(100%)";
 
 @xSmallFontSize: 4px;
 @smallFontSize: 8px;
@@ -147,14 +148,41 @@
 // CommandBar
 @CommandBarButtonHeight: 40px;
 
+/**********************************************************************************
+                              Portal Consts
+/**********************************************************************************/
+
+@PortalAccentMediumHigh: #0058ad;
+@PortalAccentMedium: #004e87;
+@PortalAccentLight: #eef7ff;
+@PortalAccentAccentExtra: #ddf0ff;
+
+/**********************************************************************************
+                              Fabric Consts
+/**********************************************************************************/
+
+@FabricFont: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif;
+
+@FabricBoxBorderRadius: 8px;
+@FabricBoxBorderShadow: 0 0 2px rgba(0, 0, 0, 0.12), 0 2px 4px rgba(0, 0, 0, 0.14);
+@FabricBoxMargin: 4px 3px 4px 3px;
+
+@FabricAccentMediumHigh: #0c695a;
+@FabricAccentMedium: #117865;
+@FabricAccentLight: #f5f5f5;
+@FabricAccentExtra: #ebebeb;
+
+@FabricButtonBorderRadius: 4px;
+
+
 /**********************************************************************************
                               Common Flex Property
 /**********************************************************************************/
 
 .flex-display(@display: flex) {
-  display: ~"-webkit-@{display}";
-  display: ~"-ms-@{display}box"; // IE10 uses -ms-flexbox
-  display: ~"-ms-@{display}"; // IE11
+  display:~"-webkit-@{display}";
+  display:~"-ms-@{display}box"; // IE10 uses -ms-flexbox
+  display:~"-ms-@{display}"; // IE11
   display: @display;
 }
 
@@ -168,13 +196,15 @@
                                  High contrast mode active
 **************************************************************************************/
 
-@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
+@media all and (-ms-high-contrast: none),
+(-ms-high-contrast: active) {
+
   .selectedRadio,
   .selectedRadio:hover,
   .selectedRadio:active,
   .selectedRadio.dirty,
-  .tab [type="radio"]:checked ~ label,
-  .tab [type="radio"]:checked ~ label:hover {
+  .tab [type="radio"]:checked~label,
+  .tab [type="radio"]:checked~label:hover {
     -ms-high-contrast-adjust: none;
     -webkit-text-fill-color: HighlightText;
     color: HighlightText;
@@ -183,6 +213,7 @@
   }
 
   .queryMetricsSummaryTuple {
+
     th,
     td {
       &:nth-child(2) {

less/documentDB.less

@@ -2646,6 +2646,11 @@ a:link {
   width: @ActiveTabWidth;
 }
 
+.nav-tabs > li.active > .tabNavContentContainer > .tab_Content > .tabNavText {
+  font-weight: bolder;
+  border-bottom: 2px solid rgba(0,120,212,1);
+}
+
 .nav-tabs > li.active:focus > .tabNavContentContainer {
   .focus();
 }

less/documentDBFabric.less

@@ -0,0 +1,207 @@
+@import "./Common/Constants";
+
+html {
+  font-family: @FabricFont;
+}
+
+body {
+  font-family: @FabricFont;
+  background-color: #f5f5f5;
+}
+
+a {
+  color: @FabricAccentMedium;
+  text-decoration: none;
+}
+
+a:hover,
+a:focus {
+  color: @FabricAccentMediumHigh;
+  text-decoration: underline;
+}
+
+#divExplorer {
+  background-color: #f5f5f5;
+}
+
+.resourceTreeAndTabs {
+  border-radius: @FabricBoxBorderRadius;
+  box-shadow: @FabricBoxBorderShadow;
+  margin: @FabricBoxMargin;
+  margin-top: 4px;
+  background-color: #ffffff;
+}
+
+.tabsManagerContainer {
+  background-color: #fafafa
+}
+
+.nav-tabs-margin {
+  padding-top: 8px;
+  background-color: #fafafa
+}
+
+.commandBarContainer {
+  background-color: #ffffff;
+  border-bottom: none;
+  border-radius: @FabricBoxBorderRadius;
+  box-shadow: @FabricBoxBorderShadow;
+  margin: @FabricBoxMargin;
+  padding-top: 2px;
+}
+
+.dividerContainer {
+  padding: @SmallSpace 0px @SmallSpace 0px;
+  .flex-display();
+
+  span {
+    border-left: @ButtonBorderWidth solid @BaseMedium;
+    margin: 0 10px 0 10px;
+  }
+}
+
+
+.nav-tabs>li>.tabNavContentContainer>.tab_Content:hover {
+  border-bottom: 2px solid #e0e0e0;
+}
+
+.nav-tabs>li.active>.tabNavContentContainer>.tab_Content,
+.nav-tabs>li.active>.tabNavContentContainer>.tab_Content:hover {
+  border-bottom: 2px solid @FabricAccentMedium;
+}
+
+.tabNavContentContainer {
+  padding: @SmallSpace 0px @SmallSpace 0px;
+
+  &:hover {
+    background-color: transparent;
+    border-color: transparent;
+  }
+
+  .tab_Content {
+    border-right: 0px none transparent;
+    margin: 0px @SmallSpace 0px @SmallSpace;
+    width: calc(@TabsWidth - (@SmallSpace * 2));
+    padding-bottom: @SmallSpace;
+
+    .statusIconContainer {
+      margin-left: 0px;
+    }
+
+    .tabIconSection {
+      .cancelButton {
+        padding: 0px 0px 0px @SmallSpace;
+
+        &:hover {
+          background-color: transparent;
+        }
+
+        &:focus {
+          background-color: transparent;
+        }
+
+        &:active {
+          background-color: transparent;
+        }
+      }
+    }
+  }
+}
+
+
+.resourceTree {
+  padding: 12px;
+}
+
+.accordion {
+  .accordionItemContainer {
+    .accordionItemHeader {
+      border-radius: 4px;
+    }
+  }
+}
+
+.treeComponent {
+  .nodeItem {
+    &:focus {
+      outline: 2px @FabricAccentMedium;
+    }
+
+    .treeNodeHeader {
+      padding: 5px 5px;
+      border-radius: 4px;
+
+      &:hover {
+        background-color: @FabricAccentLight;
+
+        .treeMenuEllipsis {
+          opacity: 1;
+        }
+      }
+
+      &.showingMenu {
+        background-color: #eee;
+      }
+    }
+
+    .selected {
+      &>.treeNodeHeader {
+        background-color: @FabricAccentExtra;
+      }
+    }
+  }
+}
+
+
+.dataExplorerErrorConsoleContainer {
+  border-radius: @FabricBoxBorderRadius;
+  box-shadow: @FabricBoxBorderShadow;
+  margin: @FabricBoxMargin;
+  width: auto;
+  align-self: auto;
+}
+
+
+
+.filterbtnstyle {
+  background: #fff;
+  color: #000;
+  border: solid 1px #d1d1d1;
+  border-radius: 4px;
+}
+
+.filterbtnstyle:hover {
+  background: @FabricAccentLight;
+  color: #000;
+  border: solid 1px #d1d1d1;
+}
+
+.filterbtnstyle:active {
+  background: @FabricAccentLight;
+  color: #000;
+  border: solid 1px #d1d1d1;
+}
+
+.filterbtnstyle:focus {
+  background: #fff;
+  color: #000;
+  border: solid 1px #d1d1d1;
+}
+
+
+.gridRowSelected .tabdocumentsGridElement:hover {
+  background-color: @FabricAccentLight !important;
+}
+
+
+.refreshcol {
+  filter: brightness(0) saturate(100%);
+}
+
+.refreshcol1 {
+  filter: brightness(0) saturate(100%);
+}
+
+.fileImportImg img {
+  filter: brightness(0) saturate(100%);
+}

src/Common/Constants.ts

@@ -365,9 +365,6 @@ export const EmulatorMasterKey =
   //[SuppressMessage("Microsoft.Security", "CS002:SecretInNextLine", Justification="Well known public masterKey for emulator")]
   "C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==";
 
-// A variable @MyVariable defined in Constants.less is accessible as StyleConstants.MyVariable
-export const StyleConstants = require("less-vars-loader!../../less/Common/Constants.less");
-
 export class Notebook {
   public static readonly defaultBasePath = "./notebooks";
   public static readonly heartbeatDelayMs = 60000;

src/Common/ResourceTreeContainer.tsx

@@ -5,8 +5,10 @@ import refreshImg from "../../images/refresh-cosmos.svg";
 import { AuthType } from "../AuthType";
 import Explorer from "../Explorer/Explorer";
 import { ResourceTokenTree } from "../Explorer/Tree/ResourceTokenTree";
+import { ResourceTree2 } from "../Explorer/Tree2/ResourceTree";
 import { userContext } from "../UserContext";
 import { getApiShortDisplayName } from "../Utils/APITypeUtils";
+import { Platform, configContext } from "./../ConfigContext";
 import { NormalizedEventKey } from "./Constants";
 
 export interface ResourceTreeContainerProps {
@@ -76,10 +78,10 @@ export const ResourceTreeContainer: FunctionComponent<ResourceTreeContainerProps
           <ResourceTokenTree />
         ) : userContext.features.enableKoResourceTree ? (
           <div style={{ overflowY: "auto" }} data-bind="react:resourceTree" />
+        ) : configContext.platform === Platform.Fabric ? (
+          <ResourceTree2 container={container} />
         ) : (
           <ResourceTree container={container} />
-          // Uncomment the following line to use the fluent ui tree
-          // <ResourceTree2 container={container} />
         )}
       </div>
       {/*  Collections Window - End */}

src/Common/StyleConstants.ts

@@ -0,0 +1,18 @@
+import { Platform, configContext } from "../ConfigContext";
+
+// eslint-disable-next-line @typescript-eslint/no-var-requires
+export const StyleConstants = require("less-vars-loader!../../less/Common/Constants.less");
+
+export function updateStyles(): void {
+  if (configContext.platform === Platform.Fabric) {
+    StyleConstants.AccentMediumHigh = StyleConstants.FabricAccentMediumHigh;
+    StyleConstants.AccentMedium = StyleConstants.FabricAccentMedium;
+    StyleConstants.AccentLight = StyleConstants.FabricAccentLight;
+    StyleConstants.AccentAccentExtra = StyleConstants.FabricAccentMediumHigh;
+  } else {
+    StyleConstants.AccentMediumHigh = StyleConstants.PortalAccentMediumHigh;
+    StyleConstants.AccentMedium = StyleConstants.PortalAccentMedium;
+    StyleConstants.AccentLight = StyleConstants.PortalAccentLight;
+    StyleConstants.AccentAccentExtra = StyleConstants.PortalAccentMediumHigh;
+  }
+}

src/ConfigContext.ts

@@ -16,6 +16,7 @@ export enum Platform {
   Portal = "Portal",
   Hosted = "Hosted",
   Emulator = "Emulator",
+  Fabric = "Fabric",
 }
 
 export interface ConfigContext {
@@ -187,6 +188,7 @@ export async function initializeConfiguration(): Promise<ConfigContext> {
           console.error(`Invalid platform query parameter: ${platform}`);
           break;
         case Platform.Portal:
+        case Platform.Fabric:
         case Platform.Hosted:
         case Platform.Emulator:
           updateConfigContext({ platform });

src/Controls/Heatmap/Heatmap.ts

@@ -1,7 +1,7 @@
 import dayjs from "dayjs";
 import * as Plotly from "plotly.js-cartesian-dist-min";
-import { StyleConstants } from "../../Common/Constants";
 import { sendCachedDataMessage, sendReadyMessage } from "../../Common/MessageHandler";
+import { StyleConstants } from "../../Common/StyleConstants";
 import { MessageTypes } from "../../Contracts/ExplorerContracts";
 import { isInvalidParentFrameOrigin } from "../../Utils/MessageValidation";
 import "./Heatmap.less";

src/Explorer/ContextMenuButtonFactory.tsx

@@ -18,6 +18,7 @@ import * as ViewModels from "../Contracts/ViewModels";
 import { userContext } from "../UserContext";
 import { getCollectionName, getDatabaseName } from "../Utils/APITypeUtils";
 import { useSidePanel } from "../hooks/useSidePanel";
+import { Platform, configContext } from "./../ConfigContext";
 import { TreeNodeMenuItem } from "./Controls/TreeComponent/TreeComponent";
 import Explorer from "./Explorer";
 import { useNotebook } from "./Notebook/useNotebook";
@@ -99,7 +100,10 @@ export const createCollectionContextMenuButton = (
     });
   }
 
-  if (userContext.apiType === "SQL" || userContext.apiType === "Gremlin") {
+  if (
+    configContext.platform !== Platform.Fabric &&
+    (userContext.apiType === "SQL" || userContext.apiType === "Gremlin")
+  ) {
     items.push({
       iconSrc: AddStoredProcedureIcon,
       onClick: () => {

src/Explorer/Controls/QueriesGridReactComponent/QueriesGridComponent.tsx

@@ -23,9 +23,9 @@ import * as React from "react";
 import * as _ from "underscore";
 import SaveQueryBannerIcon from "../../../../images/save_query_banner.png";
 import * as Constants from "../../../Common/Constants";
-import { StyleConstants } from "../../../Common/Constants";
 import { getErrorMessage, getErrorStack } from "../../../Common/ErrorHandlingUtils";
 import { QueriesClient } from "../../../Common/QueriesClient";
+import { StyleConstants } from "../../../Common/StyleConstants";
 import * as DataModels from "../../../Contracts/DataModels";
 import { Action } from "../../../Shared/Telemetry/TelemetryConstants";
 import * as TelemetryProcessor from "../../../Shared/Telemetry/TelemetryProcessor";

src/Explorer/Controls/Settings/SettingsRenderUtils.tsx

@@ -23,7 +23,8 @@ import {
   Text,
 } from "@fluentui/react";
 import * as React from "react";
-import { StyleConstants, Urls } from "../../../Common/Constants";
+import { Urls } from "../../../Common/Constants";
+import { StyleConstants } from "../../../Common/StyleConstants";
 import { hoursInAMonth } from "../../../Shared/Constants";
 import {
   computeRUUsagePriceHourly,

src/Explorer/Controls/TreeComponent/TreeComponent.tsx

@@ -18,6 +18,7 @@ import LoadingIndicator_3Squares from "../../../../images/LoadingIndicator_3Squa
 import TriangleDownIcon from "../../../../images/Triangle-down.svg";
 import TriangleRightIcon from "../../../../images/Triangle-right.svg";
 import * as Constants from "../../../Common/Constants";
+import { StyleConstants } from "../../../Common/StyleConstants";
 import { Action, ActionModifiers } from "../../../Shared/Telemetry/TelemetryConstants";
 import * as TelemetryProcessor from "../../../Shared/Telemetry/TelemetryProcessor";
 
@@ -237,7 +238,7 @@ export class TreeNodeComponent extends React.Component<TreeNodeComponentProps, T
   private renderContextMenuButton(node: TreeNode): JSX.Element {
     const menuItemLabel = "More";
     const buttonStyles: Partial<IButtonStyles> = {
-      rootFocused: { outline: `1px dashed ${Constants.StyleConstants.FocusColor}` },
+      rootFocused: { outline: `1px dashed ${StyleConstants.FocusColor}` },
     };
 
     return (

src/Explorer/Explorer.tsx

@@ -1,7 +1,7 @@
 import { Link } from "@fluentui/react/lib/Link";
 import { isPublicInternetAccessAllowed } from "Common/DatabaseAccountUtility";
 import { sendMessage } from "Common/MessageHandler";
-import { Platform } from "ConfigContext";
+import { Platform, configContext } from "ConfigContext";
 import { MessageTypes } from "Contracts/ExplorerContracts";
 import { IGalleryItem } from "Juno/JunoClient";
 import { allowedNotebookServerUrls, validateEndpoint } from "Utils/EndpointValidation";
@@ -1343,9 +1343,10 @@ export default class Explorer {
 
     // TODO: remove reference to isNotebookEnabled and isNotebooksEnabledForAccount
     const isNotebookEnabled =
-      userContext.features.notebooksDownBanner ||
+      configContext.platform !== Platform.Fabric &&
+      (userContext.features.notebooksDownBanner ||
         useNotebook.getState().isPhoenixNotebooks ||
-      useNotebook.getState().isPhoenixFeatures;
+        useNotebook.getState().isPhoenixFeatures);
     useNotebook.getState().setIsNotebookEnabled(isNotebookEnabled);
     useNotebook
       .getState()

src/Explorer/Menus/CommandBar/CommandBarComponentAdapter.tsx

@@ -8,7 +8,9 @@ import { useNotebook } from "Explorer/Notebook/useNotebook";
 import { userContext } from "UserContext";
 import * as React from "react";
 import create, { UseStore } from "zustand";
-import { ConnectionStatusType, PoolIdType, StyleConstants } from "../../../Common/Constants";
+import { ConnectionStatusType, PoolIdType } from "../../../Common/Constants";
+import { StyleConstants } from "../../../Common/StyleConstants";
+import { Platform, configContext } from "../../../ConfigContext";
 import { CommandButtonComponentProps } from "../../Controls/CommandButton/CommandButtonComponent";
 import Explorer from "../../Explorer";
 import { useSelectedNode } from "../../useSelectedNode";
@@ -84,15 +86,27 @@ export const CommandBar: React.FC<Props> = ({ container }: Props) => {
     );
   }
 
+  const rootStyle =
+    configContext.platform === Platform.Fabric
+      ? {
+          root: {
+            backgroundColor: "transparent",
+            padding: "0px 14px 0px 14px",
+          },
+        }
+      : {
+          root: {
+            backgroundColor: backgroundColor,
+          },
+        };
+
   return (
     <div className="commandBarContainer">
       <FluentCommandBar
         ariaLabel="Use left and right arrow keys to navigate between commands"
         items={uiFabricStaticButtons.concat(uiFabricTabsButtons)}
         farItems={uiFabricControlButtons}
-        styles={{
-          root: { backgroundColor: backgroundColor },
-        }}
+        styles={rootStyle}
         overflowButtonProps={{ ariaLabel: "More commands" }}
       />
     </div>

src/Explorer/Menus/CommandBar/CommandBarComponentButtonFactory.tsx

@@ -54,7 +54,11 @@ export function createStaticCommandBarButtons(
   const buttons: CommandButtonComponentProps[] = [];
 
   buttons.push(newCollectionBtn);
-  if (userContext.apiType !== "Tables" && userContext.apiType !== "Cassandra") {
+  if (
+    configContext.platform !== Platform.Fabric &&
+    userContext.apiType !== "Tables" &&
+    userContext.apiType !== "Cassandra"
+  ) {
     const addSynapseLink = createOpenSynapseLinkDialogButton(container);
 
     if (addSynapseLink) {
@@ -257,7 +261,9 @@ export function createDivider(): CommandButtonComponentProps {
 }
 
 function areScriptsSupported(): boolean {
-  return userContext.apiType === "SQL" || userContext.apiType === "Gremlin";
+  return (
+    configContext.platform !== Platform.Fabric && (userContext.apiType === "SQL" || userContext.apiType === "Gremlin")
+  );
 }
 
 function createNewCollectionGroup(container: Explorer): CommandButtonComponentProps {

src/Explorer/Menus/CommandBar/CommandBarUtil.tsx

@@ -9,7 +9,9 @@ import {
 import * as React from "react";
 import _ from "underscore";
 import ChevronDownIcon from "../../../../images/Chevron_down.svg";
-import { PoolIdType, StyleConstants } from "../../../Common/Constants";
+import { PoolIdType } from "../../../Common/Constants";
+import { StyleConstants } from "../../../Common/StyleConstants";
+import { configContext, Platform } from "../../../ConfigContext";
 import { Action, ActionModifiers } from "../../../Shared/Telemetry/TelemetryConstants";
 import * as TelemetryProcessor from "../../../Shared/Telemetry/TelemetryProcessor";
 import { CommandButtonComponentProps } from "../../Controls/CommandButton/CommandButtonComponent";
@@ -24,11 +26,14 @@ import { MemoryTracker } from "./MemoryTrackerComponent";
 export const convertButton = (btns: CommandButtonComponentProps[], backgroundColor: string): ICommandBarItemProps[] => {
   const buttonHeightPx = StyleConstants.CommandBarButtonHeight;
 
+  const hoverColor =
+    configContext.platform == Platform.Fabric ? StyleConstants.FabricAccentLight : StyleConstants.AccentLight;
+
   const getFilter = (isDisabled: boolean): string => {
     if (isDisabled) {
       return StyleConstants.GrayScale;
     }
-    return undefined;
+    return configContext.platform == Platform.Fabric ? StyleConstants.NoColor : undefined;
   };
 
   return btns
@@ -68,6 +73,7 @@ export const convertButton = (btns: CommandButtonComponentProps[], backgroundCol
               height: buttonHeightPx,
               paddingRight: 0,
               paddingLeft: 0,
+              borderRadius: configContext.platform == Platform.Fabric ? StyleConstants.FabricButtonBorderRadius : "0px",
               minWidth: 24,
               marginLeft: isSplit ? 0 : 5,
               marginRight: isSplit ? 0 : 5,
@@ -79,17 +85,17 @@ export const convertButton = (btns: CommandButtonComponentProps[], backgroundCol
             splitButtonMenuButton: {
               backgroundColor: backgroundColor,
               selectors: {
-                ":hover": { backgroundColor: StyleConstants.AccentLight },
+                ":hover": { backgroundColor: hoverColor },
               },
               width: 16,
             },
             label: { fontSize: StyleConstants.mediumFontSize },
-            rootHovered: { backgroundColor: StyleConstants.AccentLight },
-            rootPressed: { backgroundColor: StyleConstants.AccentLight },
+            rootHovered: { backgroundColor: hoverColor },
+            rootPressed: { backgroundColor: hoverColor },
             splitButtonMenuButtonExpanded: {
               backgroundColor: StyleConstants.AccentExtra,
               selectors: {
-                ":hover": { backgroundColor: StyleConstants.AccentLight },
+                ":hover": { backgroundColor: hoverColor },
               },
             },
             splitButtonDivider: {
@@ -120,7 +126,7 @@ export const convertButton = (btns: CommandButtonComponentProps[], backgroundCol
                 // TODO Remove all this crazy styling once we adopt Ui-Fabric Azure themes
                 selectors: {
                   ".ms-ContextualMenu-itemText": { fontSize: StyleConstants.mediumFontSize },
-                  ".ms-ContextualMenu-link:hover": { backgroundColor: StyleConstants.AccentLight },
+                  ".ms-ContextualMenu-link:hover": { backgroundColor: hoverColor },
                   ".ms-ContextualMenu-icon": { width: 16, height: 16 },
                 },
               },

src/Explorer/Notebook/NotebookRenderer/StatusBar.tsx

@@ -3,7 +3,7 @@ import distanceInWordsToNow from "date-fns/distance_in_words_to_now";
 import React from "react";
 import { connect } from "react-redux";
 import styled from "styled-components";
-import { StyleConstants } from "../../../Common/Constants";
+import { StyleConstants } from "../../../Common/StyleConstants";
 
 interface Props {
   lastSaved?: Date | null;

src/Explorer/QueryCopilot/CopilotCarousel.tsx

@@ -11,8 +11,9 @@ import {
   Stack,
   Text,
 } from "@fluentui/react";
-import { QueryCopilotSampleDatabaseId, StyleConstants } from "Common/Constants";
+import { QueryCopilotSampleDatabaseId } from "Common/Constants";
 import { handleError } from "Common/ErrorHandlingUtils";
+import { StyleConstants } from "Common/StyleConstants";
 import { createCollection } from "Common/dataAccess/createCollection";
 import * as DataModels from "Contracts/DataModels";
 import { ContainerSampleGenerator } from "Explorer/DataSamples/ContainerSampleGenerator";

src/Explorer/Tabs/Tabs.tsx

@@ -138,12 +138,7 @@ function TabNav({ tab, active, tabKind }: { tab?: Tab; active: boolean; tabKind?
               />
             )}
           </span>
-          <span
-            className="tabNavText"
-            style={active ? { fontWeight: "bolder", borderBottom: "2px solid rgba(0,120,212,1)" } : {}}
-          >
-            {useObservable(tab?.tabTitle || getReactTabTitle())}
-          </span>
+          <span className="tabNavText">{useObservable(tab?.tabTitle || getReactTabTitle())}</span>
           {tabKind !== ReactTabKind.Home && (
             <span className="tabIconSection">
               <CloseButton tab={tab} active={active} hovering={hovering} tabKind={tabKind} />

src/Explorer/Tree/Collection.ts

@@ -37,6 +37,7 @@ import QueryTablesTab from "../Tabs/QueryTablesTab";
 import { CollectionSettingsTabV2 } from "../Tabs/SettingsTabV2";
 import { useDatabases } from "../useDatabases";
 import { useSelectedNode } from "../useSelectedNode";
+import { Platform, configContext } from "./../../ConfigContext";
 import ConflictId from "./ConflictId";
 import DocumentId from "./DocumentId";
 import StoredProcedure from "./StoredProcedure";
@@ -205,7 +206,8 @@ export default class Collection implements ViewModels.Collection {
         .map((node) => <Trigger>node);
     });
 
-    const showScriptsMenus: boolean = userContext.apiType === "SQL" || userContext.apiType === "Gremlin";
+    const showScriptsMenus: boolean =
+      configContext.platform != Platform.Fabric && (userContext.apiType === "SQL" || userContext.apiType === "Gremlin");
     this.showStoredProcedures = ko.observable<boolean>(showScriptsMenus);
     this.showTriggers = ko.observable<boolean>(showScriptsMenus);
     this.showUserDefinedFunctions = ko.observable<boolean>(showScriptsMenus);

src/Explorer/Tree/ResourceTree.tsx

@@ -39,6 +39,7 @@ import { GitHubReposPanel } from "../Panes/GitHubReposPanel/GitHubReposPanel";
 import TabsBase from "../Tabs/TabsBase";
 import { useDatabases } from "../useDatabases";
 import { useSelectedNode } from "../useSelectedNode";
+import { Platform, configContext } from "./../../ConfigContext";
 import StoredProcedure from "./StoredProcedure";
 import Trigger from "./Trigger";
 import UserDefinedFunction from "./UserDefinedFunction";
@@ -69,7 +70,8 @@ export const ResourceTree: React.FC<ResourceTreeProps> = ({ container }: Resourc
     shallow
   );
   const { activeTab, refreshActiveTab } = useTabs();
-  const showScriptNodes = userContext.apiType === "SQL" || userContext.apiType === "Gremlin";
+  const showScriptNodes =
+    configContext.platform !== Platform.Fabric && (userContext.apiType === "SQL" || userContext.apiType === "Gremlin");
   const pseudoDirPath = "PsuedoDir";
 
   const buildGalleryCallout = (): JSX.Element => {

src/Explorer/Tree/ResourceTreeAdapter.tsx

@@ -40,6 +40,7 @@ import { GitHubReposPanel } from "../Panes/GitHubReposPanel/GitHubReposPanel";
 import TabsBase from "../Tabs/TabsBase";
 import { useDatabases } from "../useDatabases";
 import { useSelectedNode } from "../useSelectedNode";
+import { Platform, configContext } from "./../../ConfigContext";
 import StoredProcedure from "./StoredProcedure";
 import Trigger from "./Trigger";
 import UserDefinedFunction from "./UserDefinedFunction";
@@ -249,7 +250,9 @@ export class ResourceTreeAdapter implements ReactAdapter {
    * @param container
    */
   private static showScriptNodes(container: Explorer): boolean {
-    return userContext.apiType === "SQL" || userContext.apiType === "Gremlin";
+    return (
+      configContext.platform !== Platform.Fabric && (userContext.apiType === "SQL" || userContext.apiType === "Gremlin")
+    );
   }
 
   private buildCollectionNode(database: ViewModels.Database, collection: ViewModels.Collection): TreeNode {

src/Explorer/Tree2/ResourceTree.tsx

@@ -89,8 +89,8 @@ export const ResourceTree2: React.FC<ResourceTreeProps> = ({ container }: Resour
           aria-label="CosmosDB resources"
           openItems={openItems}
           onOpenChange={handleOpenChange}
-          size="small"
-          style={{ height: "100%" }}
+          size="medium"
+          style={{ height: "100%", width: "290px" }}
         >
           {[dataNodeTree].map((node) => (
             <TreeNode2Component

src/Explorer/Tree2/containerTreeNodeUtil.ts

@@ -17,6 +17,7 @@ import { useCommandBar } from "../Menus/CommandBar/CommandBarComponentAdapter";
 import { mostRecentActivity } from "../MostRecentActivity/MostRecentActivity";
 import { useNotebook } from "../Notebook/useNotebook";
 import { useSelectedNode } from "../useSelectedNode";
+import { Platform, configContext } from "./../../ConfigContext";
 
 export const buildCollectionNode = (
   database: ViewModels.Database,
@@ -25,6 +26,46 @@ export const buildCollectionNode = (
   container: Explorer,
   refreshActiveTab: (comparator: (tab: TabsBase) => boolean) => void
 ): TreeNode2 => {
+  let children: TreeNode2[];
+
+  // Flat Tree for Fabric
+  if (configContext.platform !== Platform.Fabric) {
+    children = buildCollectionNodeChildren(database, collection, isNotebookEnabled, container, refreshActiveTab);
+  }
+
+  return {
+    label: collection.id(),
+    iconSrc: CollectionIcon,
+    children: children,
+    className: "collectionHeader",
+    contextMenu: ResourceTreeContextMenuButtonFactory.createCollectionContextMenuButton(container, collection),
+    onClick: () => {
+      useSelectedNode.getState().setSelectedNode(collection);
+      collection.openTab();
+      // push to most recent
+      mostRecentActivity.collectionWasOpened(userContext.databaseAccount?.id, collection);
+    },
+    onExpanded: () => {
+      // Rewritten version of expandCollapseCollection
+      useSelectedNode.getState().setSelectedNode(collection);
+      useCommandBar.getState().setContextButtons([]);
+      refreshActiveTab(
+        (tab: TabsBase) =>
+          tab.collection?.id() === collection.id() && tab.collection.databaseId === collection.databaseId
+      );
+    },
+    isSelected: () => useSelectedNode.getState().isDataNodeSelected(collection.databaseId, collection.id()),
+    onContextMenuOpen: () => useSelectedNode.getState().setSelectedNode(collection),
+  };
+};
+
+const buildCollectionNodeChildren = (
+  database: ViewModels.Database,
+  collection: ViewModels.Collection,
+  isNotebookEnabled: boolean,
+  container: Explorer,
+  refreshActiveTab: (comparator: (tab: TabsBase) => boolean) => void
+): TreeNode2[] => {
   const showScriptNodes = userContext.apiType === "SQL" || userContext.apiType === "Gremlin";
   const children: TreeNode2[] = [];
   children.push({
@@ -110,27 +151,7 @@ export const buildCollectionNode = (
     });
   }
 
-  return {
-    label: collection.id(),
-    iconSrc: CollectionIcon,
-    children: children,
-    className: "collectionHeader",
-    contextMenu: ResourceTreeContextMenuButtonFactory.createCollectionContextMenuButton(container, collection),
-    onClick: () => {
-      useSelectedNode.getState().setSelectedNode(collection);
-    },
-    onExpanded: () => {
-      // Rewritten version of expandCollapseCollection
-      useSelectedNode.getState().setSelectedNode(collection);
-      useCommandBar.getState().setContextButtons([]);
-      refreshActiveTab(
-        (tab: TabsBase) =>
-          tab.collection?.id() === collection.id() && tab.collection.databaseId === collection.databaseId
-      );
-    },
-    isSelected: () => useSelectedNode.getState().isDataNodeSelected(collection.databaseId, collection.id()),
-    onContextMenuOpen: () => useSelectedNode.getState().setSelectedNode(collection),
-  };
+  return children;
 };
 
 const buildStoredProcedureNode = (

src/Explorer/Tree2/useDatabaseTreeNodes.ts

@@ -9,6 +9,7 @@ import * as ResourceTreeContextMenuButtonFactory from "../ContextMenuButtonFacto
 import Explorer from "../Explorer";
 import { useCommandBar } from "../Menus/CommandBar/CommandBarComponentAdapter";
 import { useSelectedNode } from "../useSelectedNode";
+import { Platform, configContext } from "./../../ConfigContext";
 
 export const useDatabaseTreeNodes = (container: Explorer, isNotebookEnabled: boolean): TreeNode2[] => {
   const databases = useDatabases((state) => state.databases);
@@ -35,7 +36,7 @@ export const useDatabaseTreeNodes = (container: Explorer, isNotebookEnabled: boo
       onContextMenuOpen: () => useSelectedNode.getState().setSelectedNode(database),
     };
 
-    if (database.isDatabaseShared()) {
+    if (database.isDatabaseShared() && configContext.platform !== Platform.Fabric) {
       databaseNode.children.push({
         id: database.isSampleDB ? "sampleScaleSettings" : "",
         label: "Scale",

src/Main.tsx

@@ -1,5 +1,5 @@
 // CSS Dependencies
-import { initializeIcons } from "@fluentui/react";
+import { initializeIcons, loadTheme } from "@fluentui/react";
 import { QuickstartCarousel } from "Explorer/Quickstart/QuickstartCarousel";
 import { MongoQuickstartTutorial } from "Explorer/Quickstart/Tutorials/MongoQuickstartTutorial";
 import { SQLQuickstartTutorial } from "Explorer/Quickstart/Tutorials/SQLQuickstartTutorial";
@@ -26,6 +26,8 @@ import "../less/TableStyles/CustomizeColumns.less";
 import "../less/TableStyles/EntityEditor.less";
 import "../less/TableStyles/fulldatatables.less";
 import "../less/TableStyles/queryBuilder.less";
+import * as StyleConstants from "./Common/StyleConstants";
+import { configContext, Platform } from "ConfigContext";
 import "../less/documentDB.less";
 import "../less/forms.less";
 import "../less/infobox.less";
@@ -57,6 +59,7 @@ import "./Libs/jquery";
 import "./Shared/appInsights";
 import { useConfig } from "./hooks/useConfig";
 import { useKnockoutExplorer } from "./hooks/useKnockoutExplorer";
+import { appThemeFabric } from "./Platform/Fabric/FabricTheme";
 
 initializeIcons();
 
@@ -67,6 +70,10 @@ const App: React.FunctionComponent = () => {
   const shouldShowModal = useQueryCopilot((state) => state.showFeedbackModal);
 
   const config = useConfig();
+  if (config?.platform === Platform.Fabric) {
+    loadTheme(appThemeFabric);
+  }
+  StyleConstants.updateStyles();
   const explorer = useKnockoutExplorer(config?.platform);
 
   const toggleLeftPaneExpanded = () => {
@@ -84,6 +91,7 @@ const App: React.FunctionComponent = () => {
 
   return (
     <div className="flexContainer" aria-hidden="false">
+      <LoadFabricOverrides />
       <div id="divExplorer" className="flexContainer hideOverflows">
         <div id="freeTierTeachingBubble"> </div>
         {/* Main Command Bar - Start */}
@@ -135,6 +143,19 @@ const App: React.FunctionComponent = () => {
 
 ReactDOM.render(<App />, document.body);
 
+function LoadFabricOverrides(): JSX.Element {
+  if (configContext.platform === Platform.Fabric) {
+    const FabricStyle = React.lazy(() => import("./Platform/Fabric/FabricPlatform"));
+    return (
+      <React.Suspense fallback={<div></div>}>
+        <FabricStyle />
+      </React.Suspense>
+    );
+  } else {
+    return <></>;
+  }
+}
+
 function LoadingExplorer(): JSX.Element {
   return (
     <div className="splashLoaderContainer">

src/Platform/Fabric/FabricPlatform.tsx

@@ -0,0 +1,7 @@
+import React from "react";
+import "../../../less/documentDBFabric.less";
+// This is a dummy export, allowing us to conditionally import documentDBFabric.less
+// by lazy-importing this in Main.tsx (see LoadFabricOverrides() there)
+export default function InitFabric() {
+  return <></>;
+}

src/Platform/Fabric/FabricTheme.tsx

@@ -0,0 +1,208 @@
+import { Theme, createTheme } from "@fluentui/react";
+
+export const appThemeFabric: Theme = createTheme({
+  palette: {
+    /**
+     * Color code for themeDarker.
+     */
+    themeDarker: "#033f38",
+    /**
+     * Color code for themeDark.
+     */
+    themeDark: "#0a5c50",
+    /**
+     * Color code for themeDarkAlt.
+     */
+    themeDarkAlt: "#0c695a",
+    /**
+     * Color code for themePrimary.
+     */
+    themePrimary: "#117865",
+    /**
+     * Color code for themeSecondary.
+     */
+    themeSecondary: "#1f937e",
+    /**
+     * Color code for themeTertiary.
+     */
+    themeTertiary: "#52c7aa",
+    /**
+     * Color code for themeLight.
+     */
+    themeLight: "#9ee0cb",
+    /**
+     * Color code for themeLighter.
+     */
+    themeLighter: "#c0ecdd",
+    /**
+     * Color code for themeLighterAlt.
+     */
+    themeLighterAlt: "#e3f7ef",
+    /**
+     * Color code for the strongest color, which is black in the default theme.
+     * This is a very light color in inverted themes.
+     */
+    black: "#000000",
+    /**
+     * Color code for blackTranslucent40.
+     */
+    blackTranslucent40: "rgba(0, 0, 0, 0.4)",
+    /**
+     * Color code for neutralDark.
+     */
+    neutralDark: "#141414",
+    /**
+     * Color code for neutralPrimary.
+     */
+    neutralPrimary: "#242424",
+    /**
+     * Color code for neutralPrimaryAlt.
+     */
+    neutralPrimaryAlt: "#383838",
+    /**
+     * Color code for neutralSecondary.
+     */
+    neutralSecondary: "#5c5c5c",
+    /**
+     * Color code for neutralSecondaryAlt.
+     */
+    neutralSecondaryAlt: "#858585",
+    /**
+     * Color code for neutralTertiary.
+     */
+    neutralTertiary: "#9e9e9e",
+    /**
+     * Color code for neutralTertiaryAlt.
+     */
+    neutralTertiaryAlt: "#c7c7c7",
+    /**
+     * Color code for neutralQuaternary.
+     */
+    neutralQuaternary: "#d1d1d1",
+    /**
+     * Color code for neutralQuaternaryAlt.
+     */
+    neutralQuaternaryAlt: "#e0e0e0",
+    /**
+     * Color code for neutralLight.
+     */
+    neutralLight: "#ebebeb",
+    /**
+     * Color code for neutralLighter.
+     */
+    neutralLighter: "#f5f5f5",
+    /**
+     * Color code for neutralLighterAlt.
+     */
+    neutralLighterAlt: "#fafafa",
+    /**
+     * Color code for the accent.
+     */
+    accent: "#117865",
+    /**
+     * Color code for the softest color, which is white in the default theme. This is a very dark color in dark themes.
+     * This is the page background.
+     */
+    white: "#ffffff",
+    /**
+     * Color code for whiteTranslucent40
+     */
+    whiteTranslucent40: "rgba(255, 255, 255, 0.4)",
+    /**
+     * Color code for yellowDark.
+     */
+    yellowDark: "#d39300",
+    /**
+     * Color code for yellow.
+     */
+    yellow: "#fde300",
+    /**
+     * Color code for yellowLight.
+     */
+    yellowLight: "#fef7b2",
+    /**
+     * Color code for orange.
+     */
+    orange: "#f7630c",
+    /**
+     * Color code for orangeLight.
+     */
+    orangeLight: "#f98845",
+    /**
+     * Color code for orangeLighter.
+     */
+    orangeLighter: "#fdcfb4",
+    /**
+     * Color code for redDark.
+     */
+    redDark: "#750b1c",
+    /**
+     * Color code for red.
+     */
+    red: "#d13438",
+    /**
+     * Color code for magentaDark.
+     */
+    magentaDark: "#6b0043",
+    /**
+     * Color code for magenta.
+     */
+    magenta: "#bf0077",
+    /**
+     * Color code for magentaLight.
+     */
+    magentaLight: "#d957a8",
+    /**
+     * Color code for purpleDark.
+     */
+    purpleDark: "#401b6c",
+    /**
+     * Color code for purple.
+     */
+    purple: "#5c2e91",
+    /**
+     * Color code for purpleLight.
+     */
+    purpleLight: "#c6b1de",
+    /**
+     * Color code for blueDark.
+     */
+    blueDark: "#003966",
+    /**
+     * Color code for blueMid.
+     */
+    blueMid: "#004e8c",
+    /**
+     * Color code for blue.
+     */
+    blue: "#0078d4",
+    /**
+     * Color code for blueLight.
+     */
+    blueLight: "#3a96dd",
+    /**
+     * Color code for tealDark.
+     */
+    tealDark: "#006666",
+    /**
+     * Color code for teal.
+     */
+    teal: "#038387",
+    /**
+     * Color code for tealLight.
+     */
+    tealLight: "#00b7c3",
+    /**
+     * Color code for greenDark.
+     */
+    greenDark: "#0b6a0b",
+    /**
+     * Color code for green.
+     */
+    green: "#107c10",
+    /**
+     * Color code for greenLight.
+     */
+    greenLight: "#13a10e",
+  },
+});

src/Platform/Hosted/Components/AccountSwitcher.tsx

@@ -4,7 +4,7 @@
 import { DefaultButton, IButtonStyles, IContextualMenuItem } from "@fluentui/react";
 import * as React from "react";
 import { FunctionComponent, useEffect, useState } from "react";
-import { StyleConstants } from "../../../Common/Constants";
+import { StyleConstants } from "../../../Common/StyleConstants";
 import { DatabaseAccount } from "../../../Contracts/DataModels";
 import { useDatabaseAccounts } from "../../../hooks/useDatabaseAccounts";
 import { useSubscriptions } from "../../../hooks/useSubscriptions";

src/Platform/Hosted/Components/ConnectExplorer.tsx

@@ -1,7 +1,7 @@
 import { useBoolean } from "@fluentui/react-hooks";
 import * as React from "react";
-import ErrorImage from "../../../../images/error.svg";
 import ConnectImage from "../../../../images/HdeConnectCosmosDB.svg";
+import ErrorImage from "../../../../images/error.svg";
 import { AuthType } from "../../../AuthType";
 import { HttpHeaders } from "../../../Common/Constants";
 import { configContext } from "../../../ConfigContext";
@@ -16,6 +16,19 @@ interface Props {
   setAuthType: (authType: AuthType) => void;
 }
 
+export const fetchEncryptedToken = async (connectionString: string): Promise<string> => {
+  const headers = new Headers();
+  headers.append(HttpHeaders.connectionString, connectionString);
+  const url = configContext.BACKEND_ENDPOINT + "/api/guest/tokens/generateToken";
+  const response = await fetch(url, { headers, method: "POST" });
+  if (!response.ok) {
+    throw response;
+  }
+  // This API has a quirk where it must be parsed twice
+  const result: GenerateTokenResponse = JSON.parse(await response.json());
+  return decodeURIComponent(result.readWrite || result.read);
+};
+
 export const ConnectExplorer: React.FunctionComponent<Props> = ({
   setEncryptedToken,
   login,
@@ -44,16 +57,8 @@ export const ConnectExplorer: React.FunctionComponent<Props> = ({
                   return;
                 }
 
-                const headers = new Headers();
-                headers.append(HttpHeaders.connectionString, connectionString);
-                const url = configContext.BACKEND_ENDPOINT + "/api/guest/tokens/generateToken";
-                const response = await fetch(url, { headers, method: "POST" });
-                if (!response.ok) {
-                  throw response;
-                }
-                // This API has a quirk where it must be parsed twice
-                const result: GenerateTokenResponse = JSON.parse(await response.json());
-                setEncryptedToken(decodeURIComponent(result.readWrite || result.read));
+                const encryptedToken = await fetchEncryptedToken(connectionString);
+                setEncryptedToken(encryptedToken);
                 setAuthType(AuthType.ConnectionString);
               }}
             >

src/SelfServe/SelfServeStyles.tsx

@@ -1,5 +1,5 @@
 import { IButtonStyles, ICommandBarStyles, ISeparatorStyles, IStackTokens } from "@fluentui/react";
-import { StyleConstants } from "../Common/Constants";
+import { StyleConstants } from "../Common/StyleConstants";
 
 export const commandBarItemStyles: IButtonStyles = { root: { paddingLeft: 20 } };
 

src/Utils/WindowUtils.ts

@@ -1,3 +1,5 @@
+import { Platform, configContext } from "./../ConfigContext";
+
 export const getDataExplorerWindow = (currentWindow: Window): Window | undefined => {
   // Data explorer is always loaded in an iframe, so traverse the parents until we hit the top and return the first child window.
   try {
@@ -5,7 +7,11 @@ export const getDataExplorerWindow = (currentWindow: Window): Window | undefined
       if (currentWindow.parent === currentWindow) {
         return undefined;
       }
-      if (currentWindow.parent === currentWindow.top) {
+      if (configContext.platform === Platform.Fabric && currentWindow.parent.parent === currentWindow.top) {
+        // in Fabric data explorer is inside an extension iframe, so we have two parent iframes
+        return currentWindow;
+      }
+      if (configContext.platform !== Platform.Fabric && currentWindow.parent === currentWindow.top) {
         return currentWindow;
       }
       currentWindow = currentWindow.parent;

src/hooks/useKnockoutExplorer.ts

@@ -1,6 +1,8 @@
 import { createUri } from "Common/UrlUtility";
 import Explorer from "Explorer/Explorer";
+import { fetchEncryptedToken } from "Platform/Hosted/Components/ConnectExplorer";
 import { getNetworkSettingsWarningMessage } from "Utils/NetworkUtility";
+import { fetchAccessData } from "hooks/usePortalAccessToken";
 import { ReactTabKind, useTabs } from "hooks/useTabs";
 import { useEffect, useState } from "react";
 import { AuthType } from "../AuthType";
@@ -60,6 +62,26 @@ export function useKnockoutExplorer(platform: Platform): Explorer {
         } else if (platform === Platform.Portal) {
           const explorer = await configurePortal();
           setExplorer(explorer);
+        } else if (platform === Platform.Fabric) {
+          // TODO For now, retrieve info from session storage. Replace with info injected into Data Explorer
+          const connectionString = sessionStorage.getItem("connectionString");
+          if (!connectionString) {
+            console.error("No connection string found in session storage");
+            return;
+          }
+          const encryptedToken = await fetchEncryptedToken(connectionString);
+          // TODO Duplicated from useTokenMetadata
+          const encryptedTokenMetadata = await fetchAccessData(encryptedToken);
+
+          const win = (window as unknown) as HostedExplorerChildFrame;
+          win.hostedConfig = {
+            authType: AuthType.EncryptedToken,
+            encryptedToken,
+            encryptedTokenMetadata,
+          };
+
+          const explorer = await configureHosted();
+          setExplorer(explorer);
         }
       }
     };