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/*
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#if ENABLE(SVG)
#include "SVGPathSegListPropertyTearOff.h"
#include "SVGAnimatedPathSegListPropertyTearOff.h"
#include "SVGNames.h"
#include "SVGPathElement.h"
#include "SVGPathSegWithContext.h"
namespace WebCore {
void SVGPathSegListPropertyTearOff::clearContextAndRoles()
{
ASSERT(m_values);
unsigned size = m_values->size();
for (unsigned i = 0; i < size; ++i) {
ListItemType item = m_values->at(i);
static_cast<SVGPathSegWithContext*>(item.get())->setContextAndRole(0, PathSegUndefinedRole);
}
}
void SVGPathSegListPropertyTearOff::clear(ExceptionCode& ec)
{
ASSERT(m_values);
if (m_values->isEmpty())
return;
clearContextAndRoles();
SVGPathSegListPropertyTearOff::Base::clearValues(ec);
}
SVGPathSegListPropertyTearOff::PassListItemType SVGPathSegListPropertyTearOff::getItem(unsigned index, ExceptionCode& ec)
{
ListItemType returnedItem = Base::getItemValues(index, ec);
if (returnedItem) {
ASSERT(static_cast<SVGPathSegWithContext*>(returnedItem.get())->contextElement() == contextElement());
ASSERT(static_cast<SVGPathSegWithContext*>(returnedItem.get())->role() == m_pathSegRole);
}
return returnedItem.release();
}
SVGPathSegListPropertyTearOff::PassListItemType SVGPathSegListPropertyTearOff::replaceItem(PassListItemType passNewItem, unsigned index, ExceptionCode& ec)
{
// Not specified, but FF/Opera do it this way, and it's just sane.
if (!passNewItem) {
ec = SVGException::SVG_WRONG_TYPE_ERR;
return 0;
}
if (index < m_values->size()) {
ListItemType replacedItem = m_values->at(index);
ASSERT(replacedItem);
static_cast<SVGPathSegWithContext*>(replacedItem.get())->setContextAndRole(0, PathSegUndefinedRole);
}
ListItemType newItem = passNewItem;
return Base::replaceItemValues(newItem, index, ec);
}
SVGPathSegListPropertyTearOff::PassListItemType SVGPathSegListPropertyTearOff::removeItem(unsigned index, ExceptionCode& ec)
{
SVGPathSegListPropertyTearOff::ListItemType removedItem = SVGPathSegListPropertyTearOff::Base::removeItemValues(index, ec);
if (removedItem)
static_cast<SVGPathSegWithContext*>(removedItem.get())->setContextAndRole(0, PathSegUndefinedRole);
return removedItem.release();
}
SVGPathElement* SVGPathSegListPropertyTearOff::contextElement() const
{
SVGElement* contextElement = m_animatedProperty->contextElement();
ASSERT(contextElement);
return toSVGPathElement(contextElement);
}
bool SVGPathSegListPropertyTearOff::processIncomingListItemValue(const ListItemType& newItem, unsigned* indexToModify)
{
SVGPathSegWithContext* newItemWithContext = static_cast<SVGPathSegWithContext*>(newItem.get());
RefPtr<SVGAnimatedProperty> animatedPropertyOfItem = newItemWithContext->animatedProperty();
// Alter the role, after calling animatedProperty(), as that may influence the returned animated property.
newItemWithContext->setContextAndRole(contextElement(), m_pathSegRole);
if (!animatedPropertyOfItem)
return true;
// newItem belongs to a SVGPathElement, but its associated SVGAnimatedProperty is not an animated list tear off.
// (for example: "pathElement.pathSegList.appendItem(pathElement.createSVGPathSegClosepath())")
if (!animatedPropertyOfItem->isAnimatedListTearOff())
return true;
// Spec: If newItem is already in a list, it is removed from its previous list before it is inserted into this list.
// 'newItem' is already living in another list. If it's not our list, synchronize the other lists wrappers after the removal.
bool livesInOtherList = animatedPropertyOfItem != m_animatedProperty;
RefPtr<SVGAnimatedPathSegListPropertyTearOff> propertyTearOff = static_pointer_cast<SVGAnimatedPathSegListPropertyTearOff>(animatedPropertyOfItem);
int indexToRemove = propertyTearOff->findItem(newItem.get());
ASSERT(indexToRemove != -1);
// Do not remove newItem if already in this list at the target index.
if (!livesInOtherList && indexToModify && static_cast<unsigned>(indexToRemove) == *indexToModify)
return false;
propertyTearOff->removeItemFromList(indexToRemove, livesInOtherList);
if (!indexToModify)
return true;
// If the item lived in our list, adjust the insertion index.
if (!livesInOtherList) {
unsigned& index = *indexToModify;
// Spec: If the item is already in this list, note that the index of the item to (replace|insert before) is before the removal of the item.
if (static_cast<unsigned>(indexToRemove) < index)
--index;
}
return true;
}
}
#endif // ENABLE(SVG)
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