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KeyframeList.cpp
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134 lines (115 loc) · 4.32 KB
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/*
* Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "KeyframeList.h"
#include "Animation.h"
#include "CSSKeyframeRule.h"
#include "RenderObject.h"
#include "StyleResolver.h"
namespace WebCore {
KeyframeList::~KeyframeList() = default;
void KeyframeList::clear()
{
m_keyframes.clear();
m_properties.clear();
}
bool KeyframeList::operator==(const KeyframeList& o) const
{
if (m_keyframes.size() != o.m_keyframes.size())
return false;
auto it2 = o.m_keyframes.begin();
for (auto it1 = m_keyframes.begin(); it1 != m_keyframes.end(); ++it1, ++it2) {
if (it1->key() != it2->key())
return false;
if (*it1->style() != *it2->style())
return false;
}
return true;
}
void KeyframeList::insert(KeyframeValue&& keyframe)
{
if (keyframe.key() < 0 || keyframe.key() > 1)
return;
bool inserted = false;
size_t i = 0;
for (; i < m_keyframes.size(); ++i) {
if (m_keyframes[i].key() > keyframe.key()) {
// insert before
m_keyframes.insert(i, WTFMove(keyframe));
inserted = true;
break;
}
}
if (!inserted)
m_keyframes.append(WTFMove(keyframe));
for (auto& property : m_keyframes[i].properties())
m_properties.add(property);
}
bool KeyframeList::hasImplicitKeyframes() const
{
return size() && (m_keyframes[0].key() || m_keyframes[size() - 1].key() != 1);
}
void KeyframeList::copyKeyframes(KeyframeList& other)
{
for (auto& keyframe : other.keyframes()) {
KeyframeValue keyframeValue(keyframe.key(), RenderStyle::clonePtr(*keyframe.style()));
for (auto propertyId : keyframe.properties())
keyframeValue.addProperty(propertyId);
insert(WTFMove(keyframeValue));
}
}
static const StyleRuleKeyframe& zeroPercentKeyframe()
{
static LazyNeverDestroyed<Ref<StyleRuleKeyframe>> rule;
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
rule.construct(StyleRuleKeyframe::create(MutableStyleProperties::create()));
rule.get()->setKey(0);
});
return rule.get().get();
}
static const StyleRuleKeyframe& hundredPercentKeyframe()
{
static LazyNeverDestroyed<Ref<StyleRuleKeyframe>> rule;
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
rule.construct(StyleRuleKeyframe::create(MutableStyleProperties::create()));
rule.get()->setKey(1);
});
return rule.get().get();
}
void KeyframeList::fillImplicitKeyframes(const Element& element, Style::Resolver& styleResolver, const RenderStyle* elementStyle, const RenderStyle* parentElementStyle)
{
// If the 0% keyframe is missing, create it (but only if there is at least one other keyframe).
auto initialSize = size();
if (initialSize > 0 && m_keyframes[0].key()) {
KeyframeValue keyframeValue(0, nullptr);
keyframeValue.setStyle(styleResolver.styleForKeyframe(element, elementStyle, parentElementStyle, &zeroPercentKeyframe(), keyframeValue));
insert(WTFMove(keyframeValue));
}
// If the 100% keyframe is missing, create it (but only if there is at least one other keyframe).
if (initialSize > 0 && (m_keyframes[size() - 1].key() != 1)) {
KeyframeValue keyframeValue(1, nullptr);
keyframeValue.setStyle(styleResolver.styleForKeyframe(element, elementStyle, parentElementStyle, &hundredPercentKeyframe(), keyframeValue));
insert(WTFMove(keyframeValue));
}
}
} // namespace WebCore