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/*
* This file is part of the DOM implementation for KDE.
*
* Copyright (C) 2006 Allan Sandfeld Jensen ([email protected])
*
* 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"
#include "dom_elementimpl.h"
namespace khtml {
DynamicDomRestyler::DynamicDomRestyler()
{
}
void DynamicDomRestyler::addDependency(ElementImpl* subject, ElementImpl* dependency, StructuralDependencyType type)
{
assert(type < LastStructuralDependency);
dependency_map[type].append(dependency, subject);
reverse_map.append(subject,dependency);
}
void DynamicDomRestyler::removeDependency(ElementImpl* subject, ElementImpl* dependency, StructuralDependencyType type)
{
dependency_map[type].remove(dependency, subject);
// don't remove from reverse_map as there might be other depencies to the same element
}
void DynamicDomRestyler::removeDependencies(ElementImpl* subject, StructuralDependencyType type)
{
KMultiMap<ElementImpl>::List* my_dependencies = reverse_map.find(subject);
if (!my_dependencies) return;
for (my_dependencies->first(); my_dependencies->current() ; my_dependencies->next())
{
ElementImpl* e = my_dependencies->current();
dependency_map[type].remove(e,subject);
}
// don't remove from reverse_map as there might be other depencies to the same elements
}
void DynamicDomRestyler::resetDependencies(ElementImpl* subject)
{
KMultiMap<ElementImpl>::List* my_dependencies = reverse_map.find(subject);
if (!my_dependencies) return;
for (my_dependencies->first(); my_dependencies->current() ; my_dependencies->next())
{
ElementImpl* e = my_dependencies->current();
for (int type = 0; type < LastStructuralDependency; type++) {
dependency_map[type].remove(e,subject);
}
}
reverse_map.remove(subject);
}
void DynamicDomRestyler::restyleDepedent(ElementImpl* dependency, StructuralDependencyType type)
{
assert(type < LastStructuralDependency);
KMultiMap<ElementImpl>::List* dep = dependency_map[type].find(dependency);
if (!dep) return;
// take copy as the restyle will change the list
KMultiMap<ElementImpl>::List dependent(*dep);
for (dependent.first(); dependent.current() ; dependent.next())
{
// kdDebug() << "Restyling dependent" << endl;
dependent.current()->setChanged(true);
}
}
void DynamicDomRestyler::dumpStats() const
{
/*
kdDebug() << "Keys in structural dependencies: " << dependency_map[StructuralDependency].size() << endl;
kdDebug() << "Keys in attribute dependencies: " << dependency_map[AttributeDependency].size() << endl;
kdDebug() << "Keys in reverse map: " << reverse_map.size() << endl;
*/
}
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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