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/*
* Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
* Copyright (C) 2012 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 THE COPYRIGHT HOLDER "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 THE COPYRIGHT HOLDER 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 "WebKitCSSRegionRule.h"
#include "CSSParser.h"
#include "CSSRuleList.h"
#include "StyleRule.h"
#include <wtf/MemoryInstrumentationVector.h>
#include <wtf/text/StringBuilder.h>
#if ENABLE(CSS_REGIONS)
namespace WebCore {
WebKitCSSRegionRule::WebKitCSSRegionRule(StyleRuleRegion* regionRule, CSSStyleSheet* parent)
: CSSRule(parent)
, 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 ");
// First add the selectors.
result.append(m_regionRule->selectorList().selectorsText());
// Then add the rules.
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(StyleRuleBase* rule)
{
ASSERT(rule);
ASSERT(rule->isRegionRule());
m_regionRule = static_cast<StyleRuleRegion*>(rule);
for (unsigned i = 0; i < m_childRuleCSSOMWrappers.size(); ++i) {
if (m_childRuleCSSOMWrappers[i])
m_childRuleCSSOMWrappers[i]->reattach(m_regionRule->childRules()[i].get());
}
}
void WebKitCSSRegionRule::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
{
MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
CSSRule::reportMemoryUsage(memoryObjectInfo);
info.addMember(m_regionRule);
info.addMember(m_childRuleCSSOMWrappers);
info.addMember(m_ruleListCSSOMWrapper);
}
} // namespace WebCore
#endif
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