packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackend.h - main - githubmr/facebook-react-native

packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackend.h

62 строки2 KB

Zeya Peng

create UIManagerAnimationBackend to replace forward declare `class AnimationBackend` (#54058)

08 окт 2025, 22:51

08 окт 2025, 22:51197783b

/*
 * 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.
 */

#pragma once

#include <folly/dynamic.h>
#include <react/renderer/core/ReactPrimitives.h>
#include <react/renderer/uimanager/UIManager.h>
#include <react/renderer/uimanager/UIManagerAnimationBackend.h>
#include <functional>
#include <vector>
#include "AnimatedProps.h"
#include "AnimatedPropsBuilder.h"

namespace facebook::react {

struct AnimationMutation {
  Tag tag;
  const ShadowNodeFamily* family;
  AnimatedProps props;
};

using AnimationMutations = std::vector<AnimationMutation>;

class AnimationBackend : public UIManagerAnimationBackend {
 public:
  using Callback = std::function<AnimationMutations(float)>;
  using StartOnRenderCallback = std::function<void(std::function<void()>&&)>;
  using StopOnRenderCallback = std::function<void()>;
  using DirectManipulationCallback =
      std::function<void(Tag, const folly::dynamic&)>;
  using FabricCommitCallback =
      std::function<void(std::unordered_map<Tag, folly::dynamic>&)>;

  std::vector<Callback> callbacks;
  const StartOnRenderCallback startOnRenderCallback_;
  const StopOnRenderCallback stopOnRenderCallback_;
  const DirectManipulationCallback directManipulationCallback_;
  const FabricCommitCallback fabricCommitCallback_;
  UIManager* uiManager_;

  AnimationBackend(
      StartOnRenderCallback&& startOnRenderCallback,
      StopOnRenderCallback&& stopOnRenderCallback,
      DirectManipulationCallback&& directManipulationCallback,
      FabricCommitCallback&& fabricCommitCallback,
      UIManager* uiManager);
  void commitUpdatesWithFamilies(
      const std::unordered_set<const ShadowNodeFamily*>& families,
      std::unordered_map<Tag, AnimatedProps>& updates);
  void synchronouslyUpdateProps(
      const std::unordered_map<Tag, AnimatedProps>& updates);

  void onAnimationFrame(double timestamp) override;
  void start(const Callback& callback);
  void stop() override;
};
} // namespace facebook::react