packages/react-native/ReactCommon/react/renderer/scheduler/SchedulerDelegate.h - main - githubmr/facebook-react-native

packages/react-native/ReactCommon/react/renderer/scheduler/SchedulerDelegate.h

77 строк2 KB

Zeya Peng

Add Fantom.getFabricUpdateProps (#52108)

21 июн 2025, 02:04

21 июн 2025, 02:04cc442eb

/*
 * 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 <memory>

#include <react/renderer/core/ReactPrimitives.h>
#include <react/renderer/mounting/MountingCoordinator.h>
#include <react/renderer/mounting/ShadowView.h>

namespace facebook::react {

/*
 * Abstract class for Scheduler's delegate.
 */
class SchedulerDelegate {
 public:
  /*
   * Called right after Scheduler computed (and laid out) a new updated version
   * of the tree and calculated a set of mutations which are sufficient
   * to construct a new one.
   */
  virtual void schedulerDidFinishTransaction(
      const std::shared_ptr<const MountingCoordinator>&
          mountingCoordinator) = 0;

  /*
   * Called when the runtime scheduler decides that one-or-more previously
   * finished transactions should now be flushed to the screen (atomically).
   *
   * This is a separate callback from didFinishTransaction as the Android UI
   * mounting layer needs to be able toobserve each created ShadowTree to
   * correctly apply changes, due to changes in Props representation.
   */
  virtual void schedulerShouldRenderTransactions(
      const std::shared_ptr<const MountingCoordinator>&
          mountingCoordinator) = 0;

  /*
   * Called right after a new ShadowNode was created.
   */
  virtual void schedulerDidRequestPreliminaryViewAllocation(
      const ShadowNode& shadowNode) = 0;

  virtual void schedulerDidDispatchCommand(
      const ShadowView& shadowView,
      const std::string& commandName,
      const folly::dynamic& args) = 0;

  virtual void schedulerDidSendAccessibilityEvent(
      const ShadowView& shadowView,
      const std::string& eventType) = 0;

  /*
   * Set JS responder for a view
   */
  virtual void schedulerDidSetIsJSResponder(
      const ShadowView& shadowView,
      bool isJSResponder,
      bool blockNativeResponder) = 0;

  virtual void schedulerShouldSynchronouslyUpdateViewOnUIThread(
      Tag tag,
      const folly::dynamic& props) = 0;

  virtual void schedulerDidUpdateShadowTree(
      const std::unordered_map<Tag, folly::dynamic>& tagToProps) = 0;

  virtual ~SchedulerDelegate() noexcept = default;
};

} // namespace facebook::react