1 /* 2 * Copyright (C) 2006 Apple Computer, Inc. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef FrameTree_h 21 #define FrameTree_h 22 23 #include "AtomicString.h" 24 25 namespace WebCore { 26 27 class Frame; 28 29 class FrameTree : public Noncopyable { 30 public: 31 FrameTree(Frame* thisFrame, Frame* parentFrame) 32 : m_thisFrame(thisFrame) 33 , m_parent(parentFrame) 34 , m_previousSibling(0) 35 , m_lastChild(0) 36 , m_childCount(0) 37 { 38 } 39 ~FrameTree(); 40 41 const AtomicString& name() const { return m_name; } 42 void setName(const AtomicString&); 43 void clearName(); 44 Frame* parent(bool checkForDisconnectedFrame = false) const; 45 void setParent(Frame* parent) { m_parent = parent; } 46 47 Frame* nextSibling() const { return m_nextSibling.get(); } 48 Frame* previousSibling() const { return m_previousSibling; } 49 Frame* firstChild() const { return m_firstChild.get(); } 50 Frame* lastChild() const { return m_lastChild; } 51 unsigned childCount() const { return m_childCount; } 52 53 bool isDescendantOf(const Frame* ancestor) const; 54 Frame* traverseNext(const Frame* stayWithin = 0) const; 55 Frame* traverseNextWithWrap(bool) const; 56 Frame* traversePreviousWithWrap(bool) const; 57 58 void appendChild(PassRefPtr<Frame>); 59 void detachFromParent() { m_parent = 0; } 60 void removeChild(Frame*); 61 62 Frame* child(unsigned index) const; 63 Frame* child(const AtomicString& name) const; 64 Frame* find(const AtomicString& name) const; 65 66 AtomicString uniqueChildName(const AtomicString& requestedName) const; 67 68 Frame* top(bool checkForDisconnectedFrame = false) const; 69 70 private: 71 Frame* deepLastChild() const; 72 73 Frame* m_thisFrame; 74 75 Frame* m_parent; 76 AtomicString m_name; 77 78 // FIXME: use ListRefPtr? 79 RefPtr<Frame> m_nextSibling; 80 Frame* m_previousSibling; 81 RefPtr<Frame> m_firstChild; 82 Frame* m_lastChild; 83 unsigned m_childCount; 84 }; 85 86 } // namespace WebCore 87 88 #endif // FrameTree_h 89
