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- /*
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
- #pragma once
- #include <react/core/ReactPrimitives.h>
- namespace facebook {
- namespace react {
- /*
- * A base class for performing image loading instrumentation.
- * The actual instrumentation is app, platform, and image loader-specific.
- */
- class ImageInstrumentation {
- public:
- virtual ~ImageInstrumentation() noexcept = default;
- /**
- * Mark that the image content is set on the native image component on screen.
- */
- virtual void didSetImage() const = 0;
- /**
- * Mark that the image view starts to be visible on screen.
- */
- virtual void didEnterVisibilityRange() const = 0;
- /**
- * Mark that the image view is no longer visible on screen.
- */
- virtual void didExitVisibilityRange() const = 0;
- };
- } // namespace react
- } // namespace facebook
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