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27 #include "SplitTextNodeCommand.h"
30 #include "DocumentMarkerController.h"
32 #include <wtf/Assertions.h>
36 SplitTextNodeCommand::SplitTextNodeCommand(PassRefPtr<Text> text, int offset)
37 : SimpleEditCommand(text->document())
41 // NOTE: Various callers rely on the fact that the original node becomes
42 // the second node (i.e. the new node is inserted before the existing one).
43 // That is not a fundamental dependency (i.e. it could be re-coded), but
44 // rather is based on how this code happens to work.
46 ASSERT(m_text2->length() > 0);
48 ASSERT(m_offset < m_text2->length());
51 void SplitTextNodeCommand::doApply()
53 ContainerNode* parent = m_text2->parentNode();
54 if (!parent || !parent->rendererIsEditable())
58 String prefixText = m_text2->substringData(0, m_offset, ec);
59 if (prefixText.isEmpty())
62 m_text1 = Text::create(document(), prefixText);
64 document()->markers()->copyMarkers(m_text2.get(), 0, m_offset, m_text1.get(), 0);
66 insertText1AndTrimText2();
69 void SplitTextNodeCommand::doUnapply()
71 if (!m_text1 || !m_text1->rendererIsEditable())
74 ASSERT(m_text1->document() == document());
76 String prefixText = m_text1->data();
79 m_text2->insertData(0, prefixText, ec);
82 document()->markers()->copyMarkers(m_text1.get(), 0, prefixText.length(), m_text2.get(), 0);
86 void SplitTextNodeCommand::doReapply()
88 if (!m_text1 || !m_text2)
91 ContainerNode* parent = m_text2->parentNode();
92 if (!parent || !parent->rendererIsEditable())
95 insertText1AndTrimText2();
98 void SplitTextNodeCommand::insertText1AndTrimText2()
100 ExceptionCode ec = 0;
101 m_text2->parentNode()->insertBefore(m_text1.get(), m_text2.get(), ec);
104 m_text2->deleteData(0, m_offset, ec);
107 } // namespace WebCore