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/*
* Copyright (C) 2007, 2008, 2012, 2013, 2014 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "CSSKeyframesRule.h"
#include "CSSDeferredParser.h"
#include "CSSKeyframeRule.h"
#include "CSSParser.h"
#include "CSSRuleList.h"
#include "CSSStyleSheet.h"
#include "Document.h"
#include <wtf/text/StringBuilder.h>
namespace WebCore {
StyleRuleKeyframes::StyleRuleKeyframes(const AtomicString& name)
: StyleRuleBase(Keyframes)
, m_name(name)
{
}
StyleRuleKeyframes::StyleRuleKeyframes(const AtomicString& name, std::unique_ptr<DeferredStyleGroupRuleList>&& deferredRules)
: StyleRuleBase(Keyframes)
, m_name(name)
, m_deferredRules(WTFMove(deferredRules))
{
}
StyleRuleKeyframes::StyleRuleKeyframes(const StyleRuleKeyframes& o)
: StyleRuleBase(o)
, m_name(o.m_name)
{
m_keyframes.reserveInitialCapacity(o.keyframes().size());
for (auto& keyframe : o.keyframes())
m_keyframes.uncheckedAppend(keyframe.copyRef());
}
StyleRuleKeyframes::~StyleRuleKeyframes() = default;
void StyleRuleKeyframes::parseDeferredRulesIfNeeded() const
{
if (!m_deferredRules)
return;
m_deferredRules->parseDeferredKeyframes(const_cast<StyleRuleKeyframes&>(*this));
m_deferredRules = nullptr;
}
const Vector<Ref<StyleRuleKeyframe>>& StyleRuleKeyframes::keyframes() const
{
parseDeferredRulesIfNeeded();
return m_keyframes;
}
void StyleRuleKeyframes::parserAppendKeyframe(RefPtr<StyleRuleKeyframe>&& keyframe)
{
if (!keyframe)
return;
m_keyframes.append(keyframe.releaseNonNull());
}
void StyleRuleKeyframes::wrapperAppendKeyframe(Ref<StyleRuleKeyframe>&& keyframe)
{
parseDeferredRulesIfNeeded();
m_keyframes.append(WTFMove(keyframe));
}
void StyleRuleKeyframes::wrapperRemoveKeyframe(unsigned index)
{
parseDeferredRulesIfNeeded();
m_keyframes.remove(index);
}
size_t StyleRuleKeyframes::findKeyframeIndex(const String& key) const
{
parseDeferredRulesIfNeeded();
auto keys = CSSParser::parseKeyframeKeyList(key);
if (!keys)
return notFound;
for (size_t i = m_keyframes.size(); i--; ) {
if (m_keyframes[i]->keys() == *keys)
return i;
}
return notFound;
}
CSSKeyframesRule::CSSKeyframesRule(StyleRuleKeyframes& keyframesRule, CSSStyleSheet* parent)
: CSSRule(parent)
, m_keyframesRule(keyframesRule)
, m_childRuleCSSOMWrappers(keyframesRule.keyframes().size())
{
}
CSSKeyframesRule::~CSSKeyframesRule()
{
ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size());
for (unsigned i = 0; i < m_childRuleCSSOMWrappers.size(); ++i) {
if (m_childRuleCSSOMWrappers[i])
m_childRuleCSSOMWrappers[i]->setParentRule(0);
}
}
void CSSKeyframesRule::setName(const String& name)
{
CSSStyleSheet::RuleMutationScope mutationScope(this);
m_keyframesRule->setName(name);
}
void CSSKeyframesRule::appendRule(const String& ruleText)
{
ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size());
CSSParser parser(parserContext());
RefPtr<StyleRuleKeyframe> keyframe = parser.parseKeyframeRule(ruleText);
if (!keyframe)
return;
CSSStyleSheet::RuleMutationScope mutationScope(this);
m_keyframesRule->wrapperAppendKeyframe(keyframe.releaseNonNull());
m_childRuleCSSOMWrappers.grow(length());
}
void CSSKeyframesRule::insertRule(const String& ruleText)
{
if (CSSStyleSheet* parent = parentStyleSheet()) {
if (Document* ownerDocument = parent->ownerDocument())
ownerDocument->addConsoleMessage(MessageSource::JS, MessageLevel::Warning, ASCIILiteral("CSSKeyframesRule 'insertRule' function is deprecated. Use 'appendRule' instead."));
}
appendRule(ruleText);
}
void CSSKeyframesRule::deleteRule(const String& s)
{
ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size());
size_t i = m_keyframesRule->findKeyframeIndex(s);
if (i == notFound)
return;
CSSStyleSheet::RuleMutationScope mutationScope(this);
m_keyframesRule->wrapperRemoveKeyframe(i);
if (m_childRuleCSSOMWrappers[i])
m_childRuleCSSOMWrappers[i]->setParentRule(0);
m_childRuleCSSOMWrappers.remove(i);
}
CSSKeyframeRule* CSSKeyframesRule::findRule(const String& s)
{
size_t i = m_keyframesRule->findKeyframeIndex(s);
return i != notFound ? item(i) : nullptr;
}
String CSSKeyframesRule::cssText() const
{
StringBuilder result;
result.appendLiteral("@-webkit-keyframes ");
result.append(name());
result.appendLiteral(" { \n");
unsigned size = length();
for (unsigned i = 0; i < size; ++i) {
result.appendLiteral(" ");
result.append(m_keyframesRule->keyframes()[i]->cssText());
result.append('\n');
}
result.append('}');
return result.toString();
}
unsigned CSSKeyframesRule::length() const
{
return m_keyframesRule->keyframes().size();
}
CSSKeyframeRule* CSSKeyframesRule::item(unsigned index) const
{
if (index >= length())
return nullptr;
ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size());
auto& rule = m_childRuleCSSOMWrappers[index];
if (!rule)
rule = adoptRef(*new CSSKeyframeRule(m_keyframesRule->keyframes()[index], const_cast<CSSKeyframesRule*>(this)));
return rule.get();
}
CSSRuleList& CSSKeyframesRule::cssRules()
{
if (!m_ruleListCSSOMWrapper)
m_ruleListCSSOMWrapper = std::make_unique<LiveCSSRuleList<CSSKeyframesRule>>(*this);
return *m_ruleListCSSOMWrapper;
}
void CSSKeyframesRule::reattach(StyleRuleBase& rule)
{
ASSERT_WITH_SECURITY_IMPLICATION(rule.isKeyframesRule());
m_keyframesRule = static_cast<StyleRuleKeyframes&>(rule);
}
} // namespace WebCore