SplitElementCommand.cpp [plain text]
#include "config.h"
#include "SplitElementCommand.h"
#include "Element.h"
#include "HTMLNames.h"
#include <wtf/Assertions.h>
namespace WebCore {
SplitElementCommand::SplitElementCommand(PassRefPtr<Element> element, PassRefPtr<Node> atChild)
: SimpleEditCommand(element->document())
, m_element2(element)
, m_atChild(atChild)
{
ASSERT(m_element2);
ASSERT(m_atChild);
ASSERT(m_atChild->parentNode() == m_element2);
}
void SplitElementCommand::executeApply()
{
if (m_atChild->parentNode() != m_element2)
return;
Vector<Ref<Node>> children;
for (Node* node = m_element2->firstChild(); node != m_atChild; node = node->nextSibling())
children.append(*node);
ExceptionCode ec = 0;
ContainerNode* parent = m_element2->parentNode();
if (!parent || !parent->hasEditableStyle())
return;
parent->insertBefore(*m_element1, m_element2.get(), ec);
if (ec)
return;
m_element2->removeAttribute(HTMLNames::idAttr);
for (auto& child : children)
m_element1->appendChild(child, ec);
}
void SplitElementCommand::doApply()
{
m_element1 = m_element2->cloneElementWithoutChildren(document());
executeApply();
}
void SplitElementCommand::doUnapply()
{
if (!m_element1 || !m_element1->hasEditableStyle() || !m_element2->hasEditableStyle())
return;
Vector<Ref<Node>> children;
for (Node* node = m_element1->firstChild(); node; node = node->nextSibling())
children.append(*node);
RefPtr<Node> refChild = m_element2->firstChild();
for (auto& child : children)
m_element2->insertBefore(child, refChild.get(), IGNORE_EXCEPTION);
const AtomicString& id = m_element1->getIdAttribute();
if (!id.isNull())
m_element2->setIdAttribute(id);
m_element1->remove(IGNORE_EXCEPTION);
}
void SplitElementCommand::doReapply()
{
if (!m_element1)
return;
executeApply();
}
#ifndef NDEBUG
void SplitElementCommand::getNodesInCommand(HashSet<Node*>& nodes)
{
addNodeAndDescendants(m_element1.get(), nodes);
addNodeAndDescendants(m_element2.get(), nodes);
addNodeAndDescendants(m_atChild.get(), nodes);
}
#endif
}