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/*
* This file is part of the DOM implementation for KDE.
*
* Copyright (C) 2006 Allan Sandfeld Jensen (kde@carewolf.com)
* (C) 2009 Vyacheslav Tokarev (tsjoker@gmail.com)
*
* 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 "dom_restyler.h"
namespace khtml {
DynamicDomRestyler::DynamicDomRestyler()
{
}
void DynamicDomRestyler::addDependency(ElementImpl* subject, ElementImpl* dependency, StructuralDependencyType type)
{
assert(type < LastStructuralDependency);
if (subject == dependency && type == HoverDependency) {
subject->setHasHoverDependency(true);
return;
}
dependency_map[type].add(dependency, subject);
reverse_map.add(subject,dependency);
}
void DynamicDomRestyler::resetDependencies(ElementImpl* subject)
{
subject->setHasHoverDependency(false);
ElementMap::ElementsList list;
reverse_map.getElements(subject, list);
if (list.isEmpty())
return;
for (int i = 0; i < list.size(); ++i)
for (int type = 0; type < LastStructuralDependency; ++type)
dependency_map[type].remove(list[i], subject);
reverse_map.remove(subject);
}
void DynamicDomRestyler::restyleDependent(ElementImpl* dependency, StructuralDependencyType type)
{
assert(type < LastStructuralDependency);
if (type == HoverDependency && dependency->hasHoverDependency())
dependency->setChanged(true);
ElementMap::ElementsList list;
dependency_map[type].getElements(dependency, list);
for (int i = 0; i < list.size(); ++i)
list[i]->setChanged(true);
}
void DynamicDomRestyler::dumpStats() const
{
/*
kDebug() << "Keys in structural dependencies: " << dependency_map[StructuralDependency].size();
kDebug() << "Keys in attribute dependencies: " << dependency_map[AttributeDependency].size();
kDebug() << "Keys in reverse map: " << reverse_map.size();
*/
}
void DynamicDomRestyler::addDependency(uint attrID, AttributeDependencyType type)
{
assert(type < LastAttributeDependency);
unsigned int hash = (attrID * 257) % 512;
attribute_map[type][hash] = true;
}
bool DynamicDomRestyler::checkDependency(uint attrID, AttributeDependencyType type)
{
assert(type < LastAttributeDependency);
unsigned int hash = (attrID * 257) % 512;
// ### gives false positives, but that's okay.
return attribute_map[type][hash];
}
} // namespace
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