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1 /*
2  * Copyright (C) 2005, 2006, 2008 Apple Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #ifndef InsertParagraphSeparatorCommand_h
27 #define InsertParagraphSeparatorCommand_h
28 
29 #include "CompositeEditCommand.h"
30 
31 namespace WebCore {
32 
33 class EditingStyle;
34 
35 class InsertParagraphSeparatorCommand : public CompositeEditCommand {
36 public:
37     static PassRefPtr<InsertParagraphSeparatorCommand> create(Document* document, bool useDefaultParagraphElement = false)
38     {
39         return adoptRef(new InsertParagraphSeparatorCommand(document, useDefaultParagraphElement));
40     }
41 
42 private:
43     InsertParagraphSeparatorCommand(Document*, bool useDefaultParagraphElement);
44 
45     virtual void doApply();
46 
47     void calculateStyleBeforeInsertion(const Position&);
48     void applyStyleAfterInsertion(Node* originalEnclosingBlock);
49     void getAncestorsInsideBlock(const Node* insertionNode, Element* outerBlock, Vector<Element*>& ancestors);
50     PassRefPtr<Element> cloneHierarchyUnderNewBlock(const Vector<Element*>& ancestors, PassRefPtr<Element> blockToInsert);
51 
52     bool shouldUseDefaultParagraphElement(Node*) const;
53 
54     virtual bool preservesTypingStyle() const;
55 
56     RefPtr<EditingStyle> m_style;
57 
58     bool m_mustUseDefaultParagraphElement;
59 };
60 
61 }
62 
63 #endif
64