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1 /* | 1 /* |
2 * Copyright (C) 2006 Apple Computer, Inc. | 2 * Copyright (C) 2006 Apple Computer, Inc. |
3 * | 3 * |
4 * This library is free software; you can redistribute it and/or | 4 * This library is free software; you can redistribute it and/or |
5 * modify it under the terms of the GNU Library General Public | 5 * modify it under the terms of the GNU Library General Public |
6 * License as published by the Free Software Foundation; either | 6 * License as published by the Free Software Foundation; either |
7 * version 2 of the License, or (at your option) any later version. | 7 * version 2 of the License, or (at your option) any later version. |
8 * | 8 * |
9 * This library is distributed in the hope that it will be useful, | 9 * This library is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 * Library General Public License for more details. | 12 * Library General Public License for more details. |
13 * | 13 * |
14 * You should have received a copy of the GNU Library General Public License | 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 | 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, | 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
17 * Boston, MA 02110-1301, USA. | 17 * Boston, MA 02110-1301, USA. |
18 */ | 18 */ |
19 | 19 |
20 #ifndef FrameTree_h | 20 #ifndef FrameTree_h |
21 #define FrameTree_h | 21 #define FrameTree_h |
22 | 22 |
23 #include "wtf/text/AtomicString.h" | 23 #include "wtf/text/AtomicString.h" |
24 | 24 |
25 namespace WebCore { | 25 namespace WebCore { |
26 | 26 |
27 class Frame; | 27 class Frame; |
28 class LocalFrame; | |
29 class TreeScope; | 28 class TreeScope; |
30 | 29 |
31 class FrameTree { | 30 class FrameTree { |
32 WTF_MAKE_NONCOPYABLE(FrameTree); | 31 WTF_MAKE_NONCOPYABLE(FrameTree); |
33 public: | 32 public: |
34 explicit FrameTree(Frame* thisFrame); | 33 explicit FrameTree(Frame* thisFrame); |
35 ~FrameTree(); | 34 ~FrameTree(); |
36 | 35 |
37 const AtomicString& name() const { return m_name; } | 36 const AtomicString& name() const { return m_name; } |
38 const AtomicString& uniqueName() const { return m_uniqueName; } | 37 const AtomicString& uniqueName() const { return m_uniqueName; } |
39 // If |name| is not empty, |fallbackName| is ignored. Otherwise, | 38 // If |name| is not empty, |fallbackName| is ignored. Otherwise, |
40 // |fallbackName| is used as a source of uniqueName. | 39 // |fallbackName| is used as a source of uniqueName. |
41 void setName(const AtomicString& name, const AtomicString& fallbackName = nu
llAtom); | 40 void setName(const AtomicString& name, const AtomicString& fallbackName = nu
llAtom); |
42 | 41 |
43 LocalFrame* parent() const; | 42 Frame* parent() const; |
44 LocalFrame* top() const; | 43 Frame* top() const; |
45 LocalFrame* previousSibling() const; | 44 Frame* previousSibling() const; |
46 LocalFrame* nextSibling() const; | 45 Frame* nextSibling() const; |
47 LocalFrame* firstChild() const; | 46 Frame* firstChild() const; |
48 LocalFrame* lastChild() const; | 47 Frame* lastChild() const; |
49 | 48 |
50 bool isDescendantOf(const LocalFrame* ancestor) const; | 49 bool isDescendantOf(const Frame* ancestor) const; |
51 LocalFrame* traversePreviousWithWrap(bool) const; | 50 Frame* traversePreviousWithWrap(bool) const; |
52 LocalFrame* traverseNext(const LocalFrame* stayWithin = 0) const; | 51 Frame* traverseNext(const Frame* stayWithin = 0) const; |
53 LocalFrame* traverseNextWithWrap(bool) const; | 52 Frame* traverseNextWithWrap(bool) const; |
54 | 53 |
55 LocalFrame* child(const AtomicString& name) const; | 54 Frame* child(const AtomicString& name) const; |
56 LocalFrame* find(const AtomicString& name) const; | 55 Frame* find(const AtomicString& name) const; |
57 unsigned childCount() const; | 56 unsigned childCount() const; |
58 | 57 |
59 LocalFrame* scopedChild(unsigned index) const; | 58 Frame* scopedChild(unsigned index) const; |
60 LocalFrame* scopedChild(const AtomicString& name) const; | 59 Frame* scopedChild(const AtomicString& name) const; |
61 unsigned scopedChildCount() const; | 60 unsigned scopedChildCount() const; |
62 void invalidateScopedChildCount(); | 61 void invalidateScopedChildCount(); |
63 | 62 |
64 private: | 63 private: |
65 LocalFrame* deepLastChild() const; | 64 Frame* deepLastChild() const; |
66 AtomicString uniqueChildName(const AtomicString& requestedName) const; | 65 AtomicString uniqueChildName(const AtomicString& requestedName) const; |
67 bool uniqueNameExists(const AtomicString& name) const; | 66 bool uniqueNameExists(const AtomicString& name) const; |
68 unsigned scopedChildCount(TreeScope*) const; | 67 unsigned scopedChildCount(TreeScope*) const; |
69 | 68 |
70 Frame* m_thisFrame; | 69 Frame* m_thisFrame; |
71 | 70 |
72 AtomicString m_name; // The actual frame name (may be empty). | 71 AtomicString m_name; // The actual frame name (may be empty). |
73 AtomicString m_uniqueName; | 72 AtomicString m_uniqueName; |
74 | 73 |
75 mutable unsigned m_scopedChildCount; | 74 mutable unsigned m_scopedChildCount; |
76 }; | 75 }; |
77 | 76 |
78 } // namespace WebCore | 77 } // namespace WebCore |
79 | 78 |
80 #ifndef NDEBUG | 79 #ifndef NDEBUG |
81 // Outside the WebCore namespace for ease of invocation from gdb. | 80 // Outside the WebCore namespace for ease of invocation from gdb. |
82 void showFrameTree(const WebCore::LocalFrame*); | 81 void showFrameTree(const WebCore::Frame*); |
83 #endif | 82 #endif |
84 | 83 |
85 #endif // FrameTree_h | 84 #endif // FrameTree_h |
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