CSSStyleDeclaration.cpp [plain text]
#include "config.h"
#include "CSSStyleDeclaration.h"
#include "CSSMutableStyleDeclaration.h"
#include "CSSMutableValue.h"
#include "CSSParser.h"
#include "CSSProperty.h"
#include "CSSPropertyNames.h"
#include "CSSRule.h"
#include "Node.h"
#include "SVGElement.h"
#include <wtf/ASCIICType.h>
using namespace WTF;
namespace WebCore {
CSSStyleDeclaration::CSSStyleDeclaration(CSSRule* parent)
: StyleBase(parent)
{
}
PassRefPtr<CSSValue> CSSStyleDeclaration::getPropertyCSSValue(const String& propertyName)
{
int propID = cssPropertyID(propertyName);
if (!propID)
return 0;
if (!isMutableStyleDeclaration())
return getPropertyCSSValue(propID);
RefPtr<CSSValue> value = getPropertyCSSValue(propID);
if (!value || !value->isMutableValue())
return value.release();
Node* node = static_cast<CSSMutableStyleDeclaration*>(this)->node();
if (!node || !node->isStyledElement())
return value.release();
Node* associatedNode = static_cast<CSSMutableValue*>(value.get())->node();
if (associatedNode) {
ASSERT(associatedNode == node);
return value.release();
}
static_cast<CSSMutableValue*>(value.get())->setNode(node);
return value.release();
}
String CSSStyleDeclaration::getPropertyValue(const String &propertyName)
{
int propID = cssPropertyID(propertyName);
if (!propID)
return String();
return getPropertyValue(propID);
}
String CSSStyleDeclaration::getPropertyPriority(const String& propertyName)
{
int propID = cssPropertyID(propertyName);
if (!propID)
return String();
return getPropertyPriority(propID) ? "important" : "";
}
String CSSStyleDeclaration::getPropertyShorthand(const String& propertyName)
{
int propID = cssPropertyID(propertyName);
if (!propID)
return String();
int shorthandID = getPropertyShorthand(propID);
if (!shorthandID)
return String();
return getPropertyName(static_cast<CSSPropertyID>(shorthandID));
}
bool CSSStyleDeclaration::isPropertyImplicit(const String& propertyName)
{
int propID = cssPropertyID(propertyName);
if (!propID)
return false;
return isPropertyImplicit(propID);
}
void CSSStyleDeclaration::setProperty(const String& propertyName, const String& value, ExceptionCode& ec)
{
size_t important = value.find("!important", 0, false);
int propertyID = cssPropertyID(propertyName);
if (!propertyID)
return;
if (important == notFound)
setProperty(propertyID, value, false, ec);
else
setProperty(propertyID, value.left(important - 1), true, ec);
}
void CSSStyleDeclaration::setProperty(const String& propertyName, const String& value, const String& priority, ExceptionCode& ec)
{
int propID = cssPropertyID(propertyName);
if (!propID) {
return;
}
bool important = priority.find("important", 0, false) != notFound;
setProperty(propID, value, important, ec);
}
String CSSStyleDeclaration::removeProperty(const String& propertyName, ExceptionCode& ec)
{
int propID = cssPropertyID(propertyName);
if (!propID)
return String();
return removeProperty(propID, ec);
}
bool CSSStyleDeclaration::isPropertyName(const String& propertyName)
{
return cssPropertyID(propertyName);
}
CSSRule* CSSStyleDeclaration::parentRule() const
{
return (parent() && parent()->isRule()) ? static_cast<CSSRule*>(parent()) : 0;
}
bool CSSStyleDeclaration::cssPropertyMatches(const CSSProperty* property) const
{
RefPtr<CSSValue> value = getPropertyCSSValue(property->id());
return value && value->cssText() == property->value()->cssText();
}
void CSSStyleDeclaration::diff(CSSMutableStyleDeclaration* style) const
{
if (!style)
return;
Vector<int> propertiesToRemove;
{
CSSMutableStyleDeclaration::const_iterator end = style->end();
for (CSSMutableStyleDeclaration::const_iterator it = style->begin(); it != end; ++it) {
const CSSProperty& property = *it;
if (cssPropertyMatches(&property))
propertiesToRemove.append(property.id());
}
}
for (unsigned i = 0; i < propertiesToRemove.size(); i++)
style->removeProperty(propertiesToRemove[i]);
}
PassRefPtr<CSSMutableStyleDeclaration> CSSStyleDeclaration::copyPropertiesInSet(const int* set, unsigned length) const
{
Vector<CSSProperty> list;
list.reserveInitialCapacity(length);
for (unsigned i = 0; i < length; i++) {
RefPtr<CSSValue> value = getPropertyCSSValue(set[i]);
if (value)
list.append(CSSProperty(set[i], value.release(), false));
}
return CSSMutableStyleDeclaration::create(list);
}
}