Bug 1943208 - Allow callout primary CTA to flip multiple prefs and open the chatbot panel r=sidebar-reviewers,sclements

Reopen panel if one was open when toggling revamp and still available. This avoids race condition of trying to open chatbot and flip revamp at the same time.

Differential Revision: https://phabricator.services.mozilla.com/D245367

browser/components/sidebar/browser-sidebar.js

@@ -203,13 +203,15 @@ var SidebarController = {
       }
     );
 
-    this._sidebars.set("viewCustomizeSidebar", {
-      url: "chrome://browser/content/sidebar/sidebar-customize.html",
-      revampL10nId: "sidebar-menu-customize-label",
-      iconUrl: "chrome://global/skin/icons/settings.svg",
-      gleanEvent: Glean.sidebarCustomize.panelToggle,
-      visible: false,
-    });
+    if (this.sidebarRevampEnabled) {
+      this._sidebars.set("viewCustomizeSidebar", {
+        url: "chrome://browser/content/sidebar/sidebar-customize.html",
+        revampL10nId: "sidebar-menu-customize-label",
+        iconUrl: "chrome://global/skin/icons/settings.svg",
+        gleanEvent: Glean.sidebarCustomize.panelToggle,
+        visible: false,
+      });
+    }
 
     return this._sidebars;
   },
@@ -801,10 +803,16 @@ var SidebarController = {
     }
     if (!this._sidebars.get(this.lastOpenedId)) {
       this.lastOpenedId = this.DEFAULT_SIDEBAR_ID;
+      wasOpen = false;
     }
     this.updateToolbarButton();
     this._inited = false;
     this.init();
+
+    // Reopen the panel in the new or old sidebar now that we've inited
+    if (wasOpen) {
+      this.toggle();
+    }
   },
 
   /**