2 * Copyright (C) 2006 Apple Computer, Inc.
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.
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.
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.
23 #include <wtf/NotFound.h>
24 #include <wtf/text/AtomicString.h>
32 WTF_MAKE_NONCOPYABLE(FrameTree);
34 const static unsigned invalidCount = static_cast<unsigned>(WTF::notFound);
36 FrameTree(Frame* thisFrame, Frame* parentFrame)
37 : m_thisFrame(thisFrame)
38 , m_parent(parentFrame)
39 , m_previousSibling(0)
41 , m_scopedChildCount(invalidCount)
47 const AtomicString& name() const { return m_name; }
48 const AtomicString& uniqueName() const { return m_uniqueName; }
49 void setName(const AtomicString&);
51 Frame* parent() const;
52 void setParent(Frame* parent) { m_parent = parent; }
54 Frame* nextSibling() const { return m_nextSibling.get(); }
55 Frame* previousSibling() const { return m_previousSibling; }
56 Frame* firstChild() const { return m_firstChild.get(); }
57 Frame* lastChild() const { return m_lastChild; }
59 bool isDescendantOf(const Frame* ancestor) const;
60 Frame* traverseNext(const Frame* stayWithin = 0) const;
61 Frame* traverseNextWithWrap(bool) const;
62 Frame* traversePreviousWithWrap(bool) const;
64 void appendChild(PassRefPtr<Frame>);
65 bool transferChild(PassRefPtr<Frame>);
66 void detachFromParent() { m_parent = 0; }
67 void removeChild(Frame*);
69 Frame* child(unsigned index) const;
70 Frame* child(const AtomicString& name) const;
71 Frame* find(const AtomicString& name) const;
72 unsigned childCount() const;
74 AtomicString uniqueChildName(const AtomicString& requestedName) const;
78 Frame* scopedChild(unsigned index) const;
79 Frame* scopedChild(const AtomicString& name) const;
80 unsigned scopedChildCount() const;
83 Frame* deepLastChild() const;
84 void actuallyAppendChild(PassRefPtr<Frame>);
86 bool scopedBy(TreeScope*) const;
87 Frame* scopedChild(unsigned index, TreeScope*) const;
88 Frame* scopedChild(const AtomicString& name, TreeScope*) const;
89 unsigned scopedChildCount(TreeScope*) const;
94 AtomicString m_name; // The actual frame name (may be empty).
95 AtomicString m_uniqueName;
97 // FIXME: use ListRefPtr?
98 RefPtr<Frame> m_nextSibling;
99 Frame* m_previousSibling;
100 RefPtr<Frame> m_firstChild;
102 mutable unsigned m_scopedChildCount;
105 } // namespace WebCore
108 // Outside the WebCore namespace for ease of invocation from gdb.
109 void showFrameTree(const WebCore::Frame*);
112 #endif // FrameTree_h