WebKitCSSFilterRule.cpp [plain text]
#include "config.h"
#include "WebKitCSSFilterRule.h"
#if ENABLE(CSS_SHADERS)
#include "PropertySetCSSStyleDeclaration.h"
#include "StylePropertySet.h"
#include "StyleRule.h"
#include <wtf/text/StringBuilder.h>
namespace WebCore {
WebKitCSSFilterRule::WebKitCSSFilterRule(StyleRuleFilter* filterRule, CSSStyleSheet* parent)
: CSSRule(parent)
, m_filterRule(filterRule)
{
}
WebKitCSSFilterRule::~WebKitCSSFilterRule()
{
if (m_propertiesCSSOMWrapper)
m_propertiesCSSOMWrapper->clearParentRule();
}
CSSStyleDeclaration* WebKitCSSFilterRule::style()
{
if (!m_propertiesCSSOMWrapper)
m_propertiesCSSOMWrapper = StyleRuleCSSStyleDeclaration::create(m_filterRule->mutableProperties(), this);
return m_propertiesCSSOMWrapper.get();
}
String WebKitCSSFilterRule::cssText() const
{
StringBuilder result;
result.appendLiteral("@-webkit-filter ");
String filterName = m_filterRule->filterName();
result.append(filterName);
result.appendLiteral(" { ");
String descs = m_filterRule->properties()->asText();
result.append(descs);
if (!descs.isEmpty())
result.append(' ');
result.append('}');
return result.toString();
}
void WebKitCSSFilterRule::reattach(StyleRuleBase* rule)
{
ASSERT(rule);
ASSERT_WITH_SECURITY_IMPLICATION(rule->isFilterRule());
m_filterRule = static_cast<StyleRuleFilter*>(rule);
if (m_propertiesCSSOMWrapper)
m_propertiesCSSOMWrapper->reattach(m_filterRule->mutableProperties());
}
}
#endif // ENABLE(CSS_SHADERS)