1 files changed, 86 insertions, 0 deletions
diff --git a/widget/android/Telemetry.h b/widget/android/Telemetry.h
new file mode 100644
index 0000000000..3e86ba8278
--- /dev/null
+++ b/widget/android/Telemetry.h
@@ -0,0 +1,86 @@
+/* -*- Mode: c++; c-basic-offset: 2; tab-width: 20; indent-tabs-mode: nil; -*-
+ * 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/. */
+
+#ifndef mozilla_widget_Telemetry_h__
+#define mozilla_widget_Telemetry_h__
+
+#include "mozilla/java/TelemetryUtilsNatives.h"
+#include "nsAppShell.h"
+#include "nsIAndroidBridge.h"
+
+#include "mozilla/Telemetry.h"
+
+namespace mozilla {
+namespace widget {
+
+class Telemetry final : public java::TelemetryUtils::Natives<Telemetry> {
+  Telemetry() = delete;
+
+  static already_AddRefed<nsIUITelemetryObserver> GetObserver() {
+    nsAppShell* const appShell = nsAppShell::Get();
+    if (!appShell) {
+      return nullptr;
+    }
+
+    nsCOMPtr<nsIAndroidBrowserApp> browserApp = appShell->GetBrowserApp();
+    nsCOMPtr<nsIUITelemetryObserver> obs;
+
+    if (!browserApp ||
+        NS_FAILED(browserApp->GetUITelemetryObserver(getter_AddRefs(obs))) ||
+        !obs) {
+      return nullptr;
+    }
+
+    return obs.forget();
+  }
+
+ public:
+  static void AddHistogram(jni::String::Param aName, int32_t aValue) {
+    MOZ_ASSERT(aName);
+    mozilla::Telemetry::Accumulate(aName->ToCString().get(), aValue);
+  }
+
+  static void AddKeyedHistogram(jni::String::Param aName,
+                                jni::String::Param aKey, int32_t aValue) {
+    MOZ_ASSERT(aName && aKey);
+    mozilla::Telemetry::Accumulate(aName->ToCString().get(), aKey->ToCString(),
+                                   aValue);
+  }
+
+  static void StartUISession(jni::String::Param aName, int64_t aTimestamp) {
+    MOZ_ASSERT(aName);
+    nsCOMPtr<nsIUITelemetryObserver> obs = GetObserver();
+    if (obs) {
+      obs->StartSession(aName->ToString().get(), aTimestamp);
+    }
+  }
+
+  static void StopUISession(jni::String::Param aName,
+                            jni::String::Param aReason, int64_t aTimestamp) {
+    MOZ_ASSERT(aName);
+    nsCOMPtr<nsIUITelemetryObserver> obs = GetObserver();
+    if (obs) {
+      obs->StopSession(aName->ToString().get(),
+                       aReason ? aReason->ToString().get() : nullptr,
+                       aTimestamp);
+    }
+  }
+
+  static void AddUIEvent(jni::String::Param aAction, jni::String::Param aMethod,
+                         int64_t aTimestamp, jni::String::Param aExtras) {
+    MOZ_ASSERT(aAction);
+    nsCOMPtr<nsIUITelemetryObserver> obs = GetObserver();
+    if (obs) {
+      obs->AddEvent(aAction->ToString().get(),
+                    aMethod ? aMethod->ToString().get() : nullptr, aTimestamp,
+                    aExtras ? aExtras->ToString().get() : nullptr);
+    }
+  }
+};
+
+}  // namespace widget
+}  // namespace mozilla
+
+#endif  // mozilla_widget_Telemetry_h__