WebKitCSSRegionRule.cpp [plain text]
#include "config.h"
#include "WebKitCSSRegionRule.h"
#include "CSSParser.h"
#include "CSSRuleList.h"
#include "StyleRule.h"
#include <wtf/text/StringBuilder.h>
#if ENABLE(CSS_REGIONS)
namespace WebCore {
WebKitCSSRegionRule::WebKitCSSRegionRule(StyleRuleRegion* regionRule, CSSStyleSheet* parent)
: CSSRule(parent, CSSRule::WEBKIT_REGION_RULE)
, m_regionRule(regionRule)
, m_childRuleCSSOMWrappers(regionRule->childRules().size())
{
}
WebKitCSSRegionRule::~WebKitCSSRegionRule()
{
for (unsigned i = 0; i < m_childRuleCSSOMWrappers.size(); ++i) {
if (m_childRuleCSSOMWrappers[i])
m_childRuleCSSOMWrappers[i]->setParentRule(0);
}
}
String WebKitCSSRegionRule::cssText() const
{
StringBuilder result;
result.append("@-webkit-region ");
result.append(m_regionRule->selectorList().selectorsText());
result.append(" { \n");
unsigned size = length();
for (unsigned i = 0; i < size; ++i) {
result.append(" ");
result.append(item(i)->cssText());
result.append("\n");
}
result.append("}");
return result.toString();
}
unsigned WebKitCSSRegionRule::length() const
{
return m_regionRule->childRules().size();
}
CSSRule* WebKitCSSRegionRule::item(unsigned index) const
{
if (index >= length())
return 0;
ASSERT(m_childRuleCSSOMWrappers.size() == m_regionRule->childRules().size());
RefPtr<CSSRule>& rule = m_childRuleCSSOMWrappers[index];
if (!rule)
rule = m_regionRule->childRules()[index]->createCSSOMWrapper(const_cast<WebKitCSSRegionRule*>(this));
return rule.get();
}
CSSRuleList* WebKitCSSRegionRule::cssRules() const
{
if (!m_ruleListCSSOMWrapper)
m_ruleListCSSOMWrapper = adoptPtr(new LiveCSSRuleList<WebKitCSSRegionRule>(const_cast<WebKitCSSRegionRule*>(this)));
return m_ruleListCSSOMWrapper.get();
}
void WebKitCSSRegionRule::reattach(StyleRuleRegion* rule)
{
ASSERT(rule);
m_regionRule = rule;
for (unsigned i = 0; i < m_childRuleCSSOMWrappers.size(); ++i) {
if (m_childRuleCSSOMWrappers[i])
m_childRuleCSSOMWrappers[i]->reattach(m_regionRule->childRules()[i].get());
}
}
}
#endif