third_party/WebKit/Source/core/animation/SampledEffect.cpp

// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "core/animation/SampledEffect.h"

namespace blink {

SampledEffect::SampledEffect(KeyframeEffectReadOnly* effect)
    : m_effect(effect),
      m_sequenceNumber(effect->animation()->sequenceNumber()),
      m_priority(effect->getPriority()) {}

void SampledEffect::clear() {
  m_effect = nullptr;
  m_interpolations.clear();
}

bool SampledEffect::willNeverChange() const {
  return !m_effect || !m_effect->animation();
}

void SampledEffect::removeReplacedInterpolations(
    const HashSet<PropertyHandle>& replacedProperties) {
  size_t newSize = 0;
  for (auto& interpolation : m_interpolations) {
    if (!replacedProperties.contains(interpolation->getProperty()))
      m_interpolations[newSize++].swap(interpolation);
  }
  m_interpolations.shrink(newSize);
}

void SampledEffect::updateReplacedProperties(
    HashSet<PropertyHandle>& replacedProperties) {
  for (const auto& interpolation : m_interpolations) {
    if (!interpolation->dependsOnUnderlyingValue())
      replacedProperties.add(interpolation->getProperty());
  }
}

DEFINE_TRACE(SampledEffect) {
  visitor->trace(m_effect);
}

}  // namespace blink