1 /*
2 * Copyright (C) 2007-2009 Google 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 are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "TreeWalker.h"
33
34 #include "Node.h"
35 #include "ScriptState.h"
36
37 #include "V8Binding.h"
38 #include "V8CustomBinding.h"
39 #include "V8Proxy.h"
40
41 #include <wtf/PassRefPtr.h>
42 #include <wtf/RefPtr.h>
43
44 namespace WebCore {
45
toV8(PassRefPtr<Node> object,ScriptState * state)46 static inline v8::Handle<v8::Value> toV8(PassRefPtr<Node> object, ScriptState* state)
47 {
48 if (state->hadException())
49 return throwError(state->exception());
50
51 if (!object)
52 return v8::Null();
53
54 return V8DOMWrapper::convertNodeToV8Object(object);
55 }
56
CALLBACK_FUNC_DECL(TreeWalkerParentNode)57 CALLBACK_FUNC_DECL(TreeWalkerParentNode)
58 {
59 INC_STATS("DOM.TreeWalker.parentNode()");
60 TreeWalker* treeWalker = V8DOMWrapper::convertToNativeObject<TreeWalker>(V8ClassIndex::TREEWALKER, args.Holder());
61
62 ScriptState state;
63 RefPtr<Node> result = treeWalker->parentNode(&state);
64 return toV8(result.release(), &state);
65 }
66
CALLBACK_FUNC_DECL(TreeWalkerFirstChild)67 CALLBACK_FUNC_DECL(TreeWalkerFirstChild)
68 {
69 INC_STATS("DOM.TreeWalker.firstChild()");
70 TreeWalker* treeWalker = V8DOMWrapper::convertToNativeObject<TreeWalker>(V8ClassIndex::TREEWALKER, args.Holder());
71
72 ScriptState state;
73 RefPtr<Node> result = treeWalker->firstChild(&state);
74 return toV8(result.release(), &state);
75 }
76
CALLBACK_FUNC_DECL(TreeWalkerLastChild)77 CALLBACK_FUNC_DECL(TreeWalkerLastChild)
78 {
79 INC_STATS("DOM.TreeWalker.lastChild()");
80 TreeWalker* treeWalker = V8DOMWrapper::convertToNativeObject<TreeWalker>(V8ClassIndex::TREEWALKER, args.Holder());
81
82 ScriptState state;
83 RefPtr<Node> result = treeWalker->lastChild(&state);
84 return toV8(result.release(), &state);
85 }
86
CALLBACK_FUNC_DECL(TreeWalkerNextNode)87 CALLBACK_FUNC_DECL(TreeWalkerNextNode)
88 {
89 INC_STATS("DOM.TreeWalker.nextNode()");
90 TreeWalker* treeWalker = V8DOMWrapper::convertToNativeObject<TreeWalker>(V8ClassIndex::TREEWALKER, args.Holder());
91
92 ScriptState state;
93 RefPtr<Node> result = treeWalker->nextNode(&state);
94 return toV8(result.release(), &state);
95 }
96
CALLBACK_FUNC_DECL(TreeWalkerPreviousNode)97 CALLBACK_FUNC_DECL(TreeWalkerPreviousNode)
98 {
99 INC_STATS("DOM.TreeWalker.previousNode()");
100 TreeWalker* treeWalker = V8DOMWrapper::convertToNativeObject<TreeWalker>(V8ClassIndex::TREEWALKER, args.Holder());
101
102 ScriptState state;
103 RefPtr<Node> result = treeWalker->previousNode(&state);
104 return toV8(result.release(), &state);
105 }
106
CALLBACK_FUNC_DECL(TreeWalkerNextSibling)107 CALLBACK_FUNC_DECL(TreeWalkerNextSibling)
108 {
109 INC_STATS("DOM.TreeWalker.nextSibling()");
110 TreeWalker* treeWalker = V8DOMWrapper::convertToNativeObject<TreeWalker>(V8ClassIndex::TREEWALKER, args.Holder());
111
112 ScriptState state;
113 RefPtr<Node> result = treeWalker->nextSibling(&state);
114 return toV8(result.release(), &state);
115 }
116
CALLBACK_FUNC_DECL(TreeWalkerPreviousSibling)117 CALLBACK_FUNC_DECL(TreeWalkerPreviousSibling)
118 {
119 INC_STATS("DOM.TreeWalker.previousSibling()");
120 TreeWalker* treeWalker = V8DOMWrapper::convertToNativeObject<TreeWalker>(V8ClassIndex::TREEWALKER, args.Holder());
121
122 ScriptState state;
123 RefPtr<Node> result = treeWalker->previousSibling(&state);
124 return toV8(result.release(), &state);
125 }
126
127 } // namespace WebCore
128