File: layer_tree_mutator.cc

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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "cc/trees/layer_tree_mutator.h"

#include <algorithm>
#include <utility>

namespace cc {

AnimationWorkletInput::AddAndUpdateState::AddAndUpdateState(
    WorkletAnimationId worklet_animation_id,
    std::string name,
    double current_time,
    std::unique_ptr<AnimationOptions> options,
    std::unique_ptr<AnimationEffectTimings> effect_timings)
    : worklet_animation_id(worklet_animation_id),
      name(name),
      current_time(current_time),
      options(std::move(options)),
      effect_timings(std::move(effect_timings)) {}
AnimationWorkletInput::AddAndUpdateState::AddAndUpdateState(
    AddAndUpdateState&&) = default;
AnimationWorkletInput::AddAndUpdateState::~AddAndUpdateState() = default;

#if DCHECK_IS_ON()
bool AnimationWorkletInput::ValidateId(int worklet_id) const {
  return std::ranges::all_of(added_and_updated_animations,
                             [worklet_id](auto& it) {
                               return it.worklet_animation_id.worklet_id ==
                                      worklet_id;
                             }) &&
         std::ranges::all_of(updated_animations,
                             [worklet_id](auto& it) {
                               return it.worklet_animation_id.worklet_id ==
                                      worklet_id;
                             }) &&
         std::ranges::all_of(removed_animations, [worklet_id](auto& it) {
           return it.worklet_id == worklet_id;
         });
}
#endif

AnimationWorkletInput::AnimationWorkletInput() = default;
AnimationWorkletInput::~AnimationWorkletInput() = default;

MutatorInputState::MutatorInputState() = default;
MutatorInputState::~MutatorInputState() = default;

bool MutatorInputState::IsEmpty() const {
  // If there is an AnimationWorkletInput entry in the map then that entry is
  // guranteed to be non-empty. So checking |inputs_| map emptiness is
  // sufficient.
  return inputs_.empty();
}

AnimationWorkletInput& MutatorInputState::EnsureWorkletEntry(int id) {
  auto it = inputs_.find(id);
  if (it == inputs_.end())
    it = inputs_.emplace_hint(it, id, new AnimationWorkletInput);

  return *it->second;
}

void MutatorInputState::Add(AnimationWorkletInput::AddAndUpdateState&& state) {
  AnimationWorkletInput& worklet_input =
      EnsureWorkletEntry(state.worklet_animation_id.worklet_id);
  worklet_input.added_and_updated_animations.push_back(std::move(state));
}
void MutatorInputState::Update(AnimationWorkletInput::UpdateState&& state) {
  AnimationWorkletInput& worklet_input =
      EnsureWorkletEntry(state.worklet_animation_id.worklet_id);
  worklet_input.updated_animations.push_back(std::move(state));
}
void MutatorInputState::Remove(WorkletAnimationId worklet_animation_id) {
  AnimationWorkletInput& worklet_input =
      EnsureWorkletEntry(worklet_animation_id.worklet_id);
  worklet_input.removed_animations.push_back(worklet_animation_id);
}

std::unique_ptr<AnimationWorkletInput> MutatorInputState::TakeWorkletState(
    int worklet_id) {
  auto it = inputs_.find(worklet_id);
  if (it == inputs_.end())
    return nullptr;

  std::unique_ptr<AnimationWorkletInput> result = std::move(it->second);
  inputs_.erase(it);
  return result;
}

AnimationWorkletOutput::AnimationWorkletOutput() = default;
AnimationWorkletOutput::~AnimationWorkletOutput() = default;

AnimationWorkletOutput::AnimationState::AnimationState(WorkletAnimationId id)
    : worklet_animation_id(id) {}
AnimationWorkletOutput::AnimationState::AnimationState(const AnimationState&) =
    default;
AnimationWorkletOutput::AnimationState::~AnimationState() = default;

}  // namespace cc