Source/WebCore/editing/ReplaceNodeWithSpanCommand.cpp

/*
 * Copyright (c) 2009 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 * 
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#include "config.h"
#include "ReplaceNodeWithSpanCommand.h"

#include "Editing.h"
#include "HTMLSpanElement.h"

namespace WebCore {

ReplaceNodeWithSpanCommand::ReplaceNodeWithSpanCommand(Ref<HTMLElement>&& element)
    : SimpleEditCommand(element->document())
    , m_elementToReplace(WTFMove(element))
{
}

static void swapInNodePreservingAttributesAndChildren(HTMLElement& newNode, HTMLElement& nodeToReplace)
{
    ASSERT(nodeToReplace.isConnected());
    RefPtr<ContainerNode> parentNode = nodeToReplace.parentNode();

    // FIXME: Fix this to send the proper MutationRecords when MutationObservers are present.
    newNode.cloneDataFromElement(nodeToReplace);
    auto children = collectChildNodes(nodeToReplace);
    for (auto& child : children)
        newNode.appendChild(child);

    parentNode->insertBefore(newNode, &nodeToReplace);
    parentNode->removeChild(nodeToReplace);
}

void ReplaceNodeWithSpanCommand::doApply()
{
    if (!m_elementToReplace->isConnected())
        return;
    if (!m_spanElement)
        m_spanElement = HTMLSpanElement::create(m_elementToReplace->document());
    swapInNodePreservingAttributesAndChildren(*m_spanElement, m_elementToReplace);
}

void ReplaceNodeWithSpanCommand::doUnapply()
{
    if (!m_spanElement->isConnected())
        return;
    swapInNodePreservingAttributesAndChildren(m_elementToReplace, *m_spanElement);
}

#ifndef NDEBUG
void ReplaceNodeWithSpanCommand::getNodesInCommand(HashSet<Node*>& nodes)
{
    addNodeAndDescendants(m_elementToReplace.ptr(), nodes);
    addNodeAndDescendants(m_spanElement.get(), nodes);
}
#endif

} // namespace WebCore