Fix initial container loading in Fabric (#1771)

* Fix initial container loading in Fabric

There is a rendering issue where the documents table doesn't resize properly if explorer is loaded in the beackground (invisible).
To workaround this, track DE visibility from Fabric RPC and open the first container only once DE becomes visible. If DE has been already shown, open the container right away.

* Preserve glitchy behavior if Fabric UX doesn't send isVisible

* Preserve Fabric visibility in global status
and fix a race condition where visibility might change during initialization.

src/Contracts/FabricMessagesContract.ts

@@ -53,6 +53,7 @@ export type FabricMessageV2 =
       id: string;
       message: {
         connectionId: string;
+        isVisible: boolean;
       };
     }
   | {
@@ -72,7 +73,7 @@ export type FabricMessageV2 =
       };
     }
   | {
-      type: "setToolbarStatus";
+      type: "explorerVisible";
       message: {
         visible: boolean;
       };

src/UserContext.ts

@@ -51,6 +51,7 @@ interface FabricContext {
   connectionId: string;
   databaseConnectionInfo: FabricDatabaseConnectionInfo | undefined;
   isReadOnly: boolean;
+  isVisible: boolean;
 }
 
 export type AdminFeedbackControlPolicy =

src/hooks/useKnockoutExplorer.ts

@@ -2,7 +2,6 @@ import { createUri } from "Common/UrlUtility";
 import { DATA_EXPLORER_RPC_VERSION } from "Contracts/DataExplorerMessagesContract";
 import { FABRIC_RPC_VERSION, FabricMessageV2 } from "Contracts/FabricMessagesContract";
 import Explorer from "Explorer/Explorer";
-import { useCommandBar } from "Explorer/Menus/CommandBar/CommandBarComponentAdapter";
 import { useSelectedNode } from "Explorer/useSelectedNode";
 import { scheduleRefreshDatabaseResourceToken } from "Platform/Fabric/FabricUtil";
 import { getNetworkSettingsWarningMessage } from "Utils/NetworkUtility";
@@ -90,6 +89,7 @@ async function configureFabric(): Promise<Explorer> {
   // These are the versions of Fabric that Data Explorer supports.
   const SUPPORTED_FABRIC_VERSIONS = [FABRIC_RPC_VERSION];
 
+  let firstContainerOpened = false;
   let explorer: Explorer;
   return new Promise<Explorer>((resolve) => {
     window.addEventListener(
@@ -121,7 +121,10 @@ async function configureFabric(): Promise<Explorer> {
             await scheduleRefreshDatabaseResourceToken(true);
             resolve(explorer);
             await explorer.refreshAllDatabases();
+            if (userContext.fabricContext.isVisible && !firstContainerOpened) {
+              firstContainerOpened = true;
               openFirstContainer(explorer, userContext.fabricContext.databaseConnectionInfo.databaseId);
+            }
             break;
           }
           case "newContainer":
@@ -132,8 +135,16 @@ async function configureFabric(): Promise<Explorer> {
             handleCachedDataMessage(data);
             break;
           }
-          case "setToolbarStatus": {
-            useCommandBar.getState().setIsHidden(data.message.visible === false);
+          case "explorerVisible": {
+            userContext.fabricContext.isVisible = data.message.visible;
+            if (
+              userContext.fabricContext.isVisible &&
+              !firstContainerOpened &&
+              userContext?.fabricContext?.databaseConnectionInfo?.databaseId !== undefined
+            ) {
+              firstContainerOpened = true;
+              openFirstContainer(explorer, userContext.fabricContext.databaseConnectionInfo.databaseId);
+            }
             break;
           }
           default:
@@ -327,12 +338,13 @@ function configureHostedWithResourceToken(config: ResourceToken): Explorer {
   return explorer;
 }
 
-function createExplorerFabric(params: { connectionId: string }): Explorer {
+function createExplorerFabric(params: { connectionId: string; isVisible: boolean }): Explorer {
   updateUserContext({
     fabricContext: {
       connectionId: params.connectionId,
       databaseConnectionInfo: undefined,
       isReadOnly: true,
+      isVisible: params.isVisible ?? true,
     },
     authType: AuthType.ConnectionString,
     databaseAccount: {