1 /* 2 * Copyright (C) 2006, 2010 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 ModifySelectionListLevel_h 27 #define ModifySelectionListLevel_h 28 29 #include "CompositeEditCommand.h" 30 31 namespace WebCore { 32 33 // ModifySelectionListLevelCommand provides functions useful for both increasing and decreasing the list level. 34 // It is the base class of IncreaseSelectionListLevelCommand and DecreaseSelectionListLevelCommand. 35 // It is not used on its own. 36 class ModifySelectionListLevelCommand : public CompositeEditCommand { 37 protected: 38 ModifySelectionListLevelCommand(Document*); 39 40 void appendSiblingNodeRange(Node* startNode, Node* endNode, Element* newParent); 41 void insertSiblingNodeRangeBefore(Node* startNode, Node* endNode, Node* refNode); 42 void insertSiblingNodeRangeAfter(Node* startNode, Node* endNode, Node* refNode); 43 44 private: 45 virtual bool preservesTypingStyle() const; 46 }; 47 48 // IncreaseSelectionListLevelCommand moves the selected list items one level deeper. 49 class IncreaseSelectionListLevelCommand : public ModifySelectionListLevelCommand { 50 public: 51 static bool canIncreaseSelectionListLevel(Document*); 52 static PassRefPtr<Node> increaseSelectionListLevel(Document*); 53 static PassRefPtr<Node> increaseSelectionListLevelOrdered(Document*); 54 static PassRefPtr<Node> increaseSelectionListLevelUnordered(Document*); 55 56 private: 57 enum Type { InheritedListType, OrderedList, UnorderedList }; 58 static PassRefPtr<Node> increaseSelectionListLevel(Document*, Type); 59 create(Document * document,Type type)60 static PassRefPtr<IncreaseSelectionListLevelCommand> create(Document* document, Type type) 61 { 62 return adoptRef(new IncreaseSelectionListLevelCommand(document, type)); 63 } 64 65 IncreaseSelectionListLevelCommand(Document*, Type); 66 67 virtual void doApply(); 68 69 Type m_listType; 70 RefPtr<Node> m_listElement; 71 }; 72 73 // DecreaseSelectionListLevelCommand moves the selected list items one level shallower. 74 class DecreaseSelectionListLevelCommand : public ModifySelectionListLevelCommand { 75 public: 76 static bool canDecreaseSelectionListLevel(Document*); 77 static void decreaseSelectionListLevel(Document*); 78 79 private: create(Document * document)80 static PassRefPtr<DecreaseSelectionListLevelCommand> create(Document* document) 81 { 82 return adoptRef(new DecreaseSelectionListLevelCommand(document)); 83 } 84 85 DecreaseSelectionListLevelCommand(Document*); 86 87 virtual void doApply(); 88 }; 89 90 } // namespace WebCore 91 92 #endif // ModifySelectionListLevel_h 93