1 files changed, 62 insertions, 0 deletions
diff --git a/browser/actors/AboutPrivateBrowsingChild.sys.mjs b/browser/actors/AboutPrivateBrowsingChild.sys.mjs
new file mode 100644
index 0000000000..277156065c
--- /dev/null
+++ b/browser/actors/AboutPrivateBrowsingChild.sys.mjs
@@ -0,0 +1,62 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { RemotePageChild } from "resource://gre/actors/RemotePageChild.sys.mjs";
+
+const lazy = {};
+
+ChromeUtils.defineESModuleGetters(lazy, {
+  NimbusFeatures: "resource://nimbus/ExperimentAPI.sys.mjs",
+  ExperimentAPI: "resource://nimbus/ExperimentAPI.sys.mjs",
+});
+
+export class AboutPrivateBrowsingChild extends RemotePageChild {
+  actorCreated() {
+    super.actorCreated();
+    let window = this.contentWindow;
+
+    Cu.exportFunction(this.PrivateBrowsingRecordClick.bind(this), window, {
+      defineAs: "PrivateBrowsingRecordClick",
+    });
+    Cu.exportFunction(
+      this.PrivateBrowsingShouldHideDefault.bind(this),
+      window,
+      {
+        defineAs: "PrivateBrowsingShouldHideDefault",
+      }
+    );
+    Cu.exportFunction(
+      this.PrivateBrowsingPromoExposureTelemetry.bind(this),
+      window,
+      { defineAs: "PrivateBrowsingPromoExposureTelemetry" }
+    );
+    Cu.exportFunction(this.FeltPrivacyExposureTelemetry.bind(this), window, {
+      defineAs: "FeltPrivacyExposureTelemetry",
+    });
+  }
+
+  PrivateBrowsingRecordClick(source) {
+    const experiment = lazy.ExperimentAPI.getExperimentMetaData({
+      featureId: "pbNewtab",
+    });
+    if (experiment) {
+      Services.telemetry.recordEvent("aboutprivatebrowsing", "click", source);
+    }
+    return experiment;
+  }
+
+  PrivateBrowsingShouldHideDefault() {
+    const config = lazy.NimbusFeatures.pbNewtab.getAllVariables() || {};
+    return config?.content?.hideDefault;
+  }
+
+  PrivateBrowsingPromoExposureTelemetry() {
+    lazy.NimbusFeatures.pbNewtab.recordExposureEvent({ once: false });
+  }
+
+  FeltPrivacyExposureTelemetry() {
+    lazy.NimbusFeatures.feltPrivacy.recordExposureEvent({ once: true });
+  }
+}