1 files changed, 100 insertions, 0 deletions
diff --git a/widget/android/fennec/Telemetry.h b/widget/android/fennec/Telemetry.h
new file mode 100644
index 000000000..c72735496
--- /dev/null
+++ b/widget/android/fennec/Telemetry.h
@@ -0,0 +1,100 @@
+/* -*- Mode: c++; c-basic-offset: 4; 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 "FennecJNINatives.h"
+#include "nsAppShell.h"
+#include "nsIAndroidBridge.h"
+
+#include "mozilla/Telemetry.h"
+
+namespace mozilla {
+namespace widget {
+
+class Telemetry final
+    : public java::Telemetry::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__