WebKitCSSKeyframesRule.cpp [plain text]
#include "config.h"
#include "WebKitCSSKeyframesRule.h"
#include "CSSParser.h"
#include "CSSRuleList.h"
#include "CSSStyleSheet.h"
#include "StyleProperties.h"
#include "StyleSheet.h"
#include "WebKitCSSKeyframeRule.h"
#include <wtf/text/StringBuilder.h>
namespace WebCore {
StyleRuleKeyframes::StyleRuleKeyframes()
: StyleRuleBase(Keyframes, 0)
{
}
StyleRuleKeyframes::StyleRuleKeyframes(const StyleRuleKeyframes& o)
: StyleRuleBase(o)
, m_keyframes(o.m_keyframes)
, m_name(o.m_name)
{
}
StyleRuleKeyframes::~StyleRuleKeyframes()
{
}
void StyleRuleKeyframes::parserAppendKeyframe(PassRefPtr<StyleKeyframe> keyframe)
{
if (!keyframe)
return;
m_keyframes.append(keyframe);
}
void StyleRuleKeyframes::wrapperAppendKeyframe(PassRefPtr<StyleKeyframe> keyframe)
{
m_keyframes.append(keyframe);
}
void StyleRuleKeyframes::wrapperRemoveKeyframe(unsigned index)
{
m_keyframes.remove(index);
}
int StyleRuleKeyframes::findKeyframeIndex(const String& key) const
{
String percentageString;
if (equalIgnoringCase(key, "from"))
percentageString = ASCIILiteral("0%");
else if (equalIgnoringCase(key, "to"))
percentageString = ASCIILiteral("100%");
else
percentageString = key;
for (unsigned i = 0; i < m_keyframes.size(); ++i) {
if (m_keyframes[i]->keyText() == percentageString)
return i;
}
return -1;
}
WebKitCSSKeyframesRule::WebKitCSSKeyframesRule(StyleRuleKeyframes* keyframesRule, CSSStyleSheet* parent)
: CSSRule(parent)
, m_keyframesRule(keyframesRule)
, m_childRuleCSSOMWrappers(keyframesRule->keyframes().size())
{
}
WebKitCSSKeyframesRule::~WebKitCSSKeyframesRule()
{
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 WebKitCSSKeyframesRule::setName(const String& name)
{
CSSStyleSheet::RuleMutationScope mutationScope(this);
m_keyframesRule->setName(name);
}
void WebKitCSSKeyframesRule::insertRule(const String& ruleText)
{
ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size());
CSSParser parser(parserContext());
CSSStyleSheet* styleSheet = parentStyleSheet();
RefPtr<StyleKeyframe> keyframe = parser.parseKeyframeRule(styleSheet ? &styleSheet->contents() : nullptr, ruleText);
if (!keyframe)
return;
CSSStyleSheet::RuleMutationScope mutationScope(this);
m_keyframesRule->wrapperAppendKeyframe(keyframe);
m_childRuleCSSOMWrappers.grow(length());
}
void WebKitCSSKeyframesRule::deleteRule(const String& s)
{
ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size());
int i = m_keyframesRule->findKeyframeIndex(s);
if (i < 0)
return;
CSSStyleSheet::RuleMutationScope mutationScope(this);
m_keyframesRule->wrapperRemoveKeyframe(i);
if (m_childRuleCSSOMWrappers[i])
m_childRuleCSSOMWrappers[i]->setParentRule(0);
m_childRuleCSSOMWrappers.remove(i);
}
WebKitCSSKeyframeRule* WebKitCSSKeyframesRule::findRule(const String& s)
{
int i = m_keyframesRule->findKeyframeIndex(s);
return (i >= 0) ? item(i) : 0;
}
String WebKitCSSKeyframesRule::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 WebKitCSSKeyframesRule::length() const
{
return m_keyframesRule->keyframes().size();
}
WebKitCSSKeyframeRule* WebKitCSSKeyframesRule::item(unsigned index) const
{
if (index >= length())
return 0;
ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size());
RefPtr<WebKitCSSKeyframeRule>& rule = m_childRuleCSSOMWrappers[index];
if (!rule)
rule = adoptRef(new WebKitCSSKeyframeRule(m_keyframesRule->keyframes()[index].get(), const_cast<WebKitCSSKeyframesRule*>(this)));
return rule.get();
}
CSSRuleList* WebKitCSSKeyframesRule::cssRules()
{
if (!m_ruleListCSSOMWrapper)
m_ruleListCSSOMWrapper = std::make_unique<LiveCSSRuleList<WebKitCSSKeyframesRule>>(this);
return m_ruleListCSSOMWrapper.get();
}
void WebKitCSSKeyframesRule::reattach(StyleRuleBase* rule)
{
ASSERT(rule);
ASSERT_WITH_SECURITY_IMPLICATION(rule->isKeyframesRule());
m_keyframesRule = static_cast<StyleRuleKeyframes*>(rule);
}
}