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27 #include "core/editing/MergeIdenticalElementsCommand.h"
29 #include "bindings/core/v8/ExceptionState.h"
30 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
31 #include "core/dom/Element.h"
35 MergeIdenticalElementsCommand::MergeIdenticalElementsCommand(PassRefPtrWillBeRawPtr<Element> first, PassRefPtrWillBeRawPtr<Element> second)
36 : SimpleEditCommand(first->document())
42 ASSERT(m_element1->nextSibling() == m_element2);
45 void MergeIdenticalElementsCommand::doApply()
47 if (m_element1->nextSibling() != m_element2 || !m_element1->hasEditableStyle() || !m_element2->hasEditableStyle())
50 m_atChild = m_element2->firstChild();
53 getChildNodes(*m_element1, children);
55 for (auto& child : children)
56 m_element2->insertBefore(child.release(), m_atChild.get(), IGNORE_EXCEPTION);
58 m_element1->remove(IGNORE_EXCEPTION);
61 void MergeIdenticalElementsCommand::doUnapply()
66 RefPtrWillBeRawPtr<Node> atChild = m_atChild.release();
68 ContainerNode* parent = m_element2->parentNode();
69 if (!parent || !parent->hasEditableStyle())
72 TrackExceptionState exceptionState;
74 parent->insertBefore(m_element1.get(), m_element2.get(), exceptionState);
75 if (exceptionState.hadException())
78 WillBeHeapVector<RefPtrWillBeMember<Node>> children;
79 for (Node* child = m_element2->firstChild(); child && child != atChild; child = child->nextSibling())
80 children.append(child);
82 for (auto& child : children)
83 m_element1->appendChild(child.release(), exceptionState);
86 void MergeIdenticalElementsCommand::trace(Visitor* visitor)
88 visitor->trace(m_element1);
89 visitor->trace(m_element2);
90 visitor->trace(m_atChild);
91 SimpleEditCommand::trace(visitor);