CSSStyleDeclaration.cpp [plain text]
#include "config.h"
#include "CSSStyleDeclaration.h"
#include "CSSMutableStyleDeclaration.h"
#include "CSSProperty.h"
#include "CSSPropertyNames.h"
#include "CSSRule.h"
#include "DeprecatedValueList.h"
WebCore::String getPropertyName(unsigned short id);
namespace WebCore {
int getPropertyID(const char* str, int len);
static int propertyID(const String& s)
{
char buffer[maxCSSPropertyNameLength];
unsigned len = s.length();
if (len > maxCSSPropertyNameLength)
return 0;
for (unsigned i = 0; i != len; ++i) {
UChar c = s[i];
if (c == 0 || c >= 0x7F)
return 0; buffer[i] = c;
}
int id = getPropertyID(buffer, len);
#if SVG_SUPPORT
if (id == 0)
id = SVG::getSVGCSSPropertyID(buffer, len);
#endif
return id;
}
CSSStyleDeclaration::CSSStyleDeclaration(CSSRule* parent)
: StyleBase(parent)
{
}
bool CSSStyleDeclaration::isStyleDeclaration()
{
return true;
}
PassRefPtr<CSSValue> CSSStyleDeclaration::getPropertyCSSValue(const String& propertyName)
{
int propID = propertyID(propertyName);
if (!propID)
return 0;
return getPropertyCSSValue(propID);
}
String CSSStyleDeclaration::getPropertyValue(const String &propertyName)
{
int propID = propertyID(propertyName);
if (!propID)
return String();
return getPropertyValue(propID);
}
String CSSStyleDeclaration::getPropertyPriority(const String &propertyName)
{
int propID = propertyID(propertyName);
if (!propID)
return String();
return getPropertyPriority(propID) ? "important" : "";
}
String CSSStyleDeclaration::getPropertyShorthand(const String &propertyName)
{
int propID = propertyID(propertyName);
if (!propID)
return String();
int shorthandID = getPropertyShorthand(propID);
if (!shorthandID)
return String();
return getPropertyName(shorthandID);
}
bool CSSStyleDeclaration::isPropertyImplicit(const String &propertyName)
{
int propID = propertyID(propertyName);
if (!propID)
return false;
return isPropertyImplicit(propID);
}
void CSSStyleDeclaration::setProperty(const String& propertyName, const String& value, ExceptionCode& ec)
{
int important = value.find("!important", 0, false);
if (important == -1)
setProperty(propertyName, value, "", ec);
else
setProperty(propertyName, value.left(important - 1), "important", ec);
}
void CSSStyleDeclaration::setProperty(const String& propertyName, const String& value, const String& priority, ExceptionCode& ec)
{
int propID = propertyID(propertyName);
if (!propID) return;
bool important = priority.find("important", 0, false) != -1;
setProperty(propID, value, important, ec);
}
String CSSStyleDeclaration::removeProperty(const String& propertyName, ExceptionCode& ec)
{
int propID = propertyID(propertyName);
if (!propID)
return String();
return removeProperty(propID, ec);
}
bool CSSStyleDeclaration::isPropertyName(const String &propertyName)
{
return propertyID(propertyName);
}
CSSRule *CSSStyleDeclaration::parentRule() const
{
return (parent() && parent()->isRule()) ? static_cast<CSSRule *>(parent()) : 0;
}
void CSSStyleDeclaration::diff(CSSMutableStyleDeclaration *style) const
{
if (!style)
return;
DeprecatedValueList<int> properties;
DeprecatedValueListConstIterator<CSSProperty> end;
for (DeprecatedValueListConstIterator<CSSProperty> it(style->valuesIterator()); it != end; ++it) {
const CSSProperty& property = *it;
RefPtr<CSSValue> value = getPropertyCSSValue(property.id());
if (value && (value->cssText() == property.value()->cssText()))
properties.append(property.id());
}
for (DeprecatedValueListIterator<int> it(properties.begin()); it != properties.end(); ++it)
style->removeProperty(*it);
}
PassRefPtr<CSSMutableStyleDeclaration> CSSStyleDeclaration::copyPropertiesInSet(const int *set, unsigned length) const
{
DeprecatedValueList<CSSProperty> list;
for (unsigned i = 0; i < length; i++) {
RefPtr<CSSValue> value = getPropertyCSSValue(set[i]);
if (value)
list.append(CSSProperty(set[i], value.release(), false));
}
return new CSSMutableStyleDeclaration(0, list);
}
}