Files
react-native/ReactCommon/fabric/imagemanager/ImageResponseObserver.h
T
Valentin Shergin 3bc09892c0 Fabric: Enforcing const-correctness around ImageResponseObserverCoordinator
Summary:
`addObserver` and `removeObserver` now accepts const references instead of pointers which indicates the intent (non-nullability and non-owning) clearly. The delegate methods are also marked as `const` to designate the possible concurrent execution (`const` means "thread-safe" here).

All changes are pure syntactical, nothing really changes (besides the fact overall code quality and redability).

Reviewed By: JoshuaGross

Differential Revision: D17535395

fbshipit-source-id: b0c6c872d44fee22e38fd067ccd3320e7231c94a
2019-09-23 15:59:45 -07:00

30 lines
744 B
C++

/**
* 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/imagemanager/ImageResponse.h>
namespace facebook {
namespace react {
/*
* Represents any observer of ImageResponse progression, completion, or failure.
* All methods must be thread-safe.
*/
class ImageResponseObserver {
public:
virtual ~ImageResponseObserver() noexcept = default;
virtual void didReceiveProgress(float progress) const = 0;
virtual void didReceiveImage(ImageResponse const &imageResponse) const = 0;
virtual void didReceiveFailure() const = 0;
};
} // namespace react
} // namespace facebook