Added SimpleImagePerfNotifier that delegates image perf events to a s…

…ingle image perf data listener

Reviewed By: javache

Differential Revision: D51202696

fbshipit-source-id: a9e8325aed6bfaab2edfa59b401af38dd36fdd7f

ui-common/src/main/java/com/facebook/fresco/ui/common/SimpleImagePerfNotifier.kt

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.fresco.ui.common
+
+class SimpleImagePerfNotifier(private val imagePerfDataListener: ImagePerfDataListener) :
+    ImagePerfNotifier {
+
+  override fun notifyListenersOfVisibilityStateUpdate(
+      state: ImagePerfState,
+      visibilityState: VisibilityState
+  ) {
+    imagePerfDataListener.onImageVisibilityUpdated(state.snapshot(), visibilityState)
+  }
+
+  override fun notifyStatusUpdated(state: ImagePerfState, imageLoadStatus: ImageLoadStatus) {
+    imagePerfDataListener.onImageLoadStatusUpdated(state.snapshot(), imageLoadStatus)
+  }
+}