1 /*
2 * Copyright (C) 2007, 2009, 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 JSNodeCustom_h
27 #define JSNodeCustom_h
28
29 #include "JSDOMBinding.h"
30 #include <wtf/AlwaysInline.h>
31
32 namespace WebCore {
33
34 class JSNodeOwner : public JSC::WeakHandleOwner {
35 virtual bool isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown>, void* context, JSC::MarkStack&);
36 virtual void finalize(JSC::Handle<JSC::Unknown>, void* context);
37 };
38
wrapperOwner(DOMWrapperWorld *,Node *)39 inline JSC::WeakHandleOwner* wrapperOwner(DOMWrapperWorld*, Node*)
40 {
41 DEFINE_STATIC_LOCAL(JSNodeOwner, jsNodeOwner, ());
42 return &jsNodeOwner;
43 }
44
wrapperContext(DOMWrapperWorld * world,Node *)45 inline void* wrapperContext(DOMWrapperWorld* world, Node*)
46 {
47 return world;
48 }
49
getInlineCachedWrapper(DOMWrapperWorld * world,Node * node)50 inline JSDOMWrapper* getInlineCachedWrapper(DOMWrapperWorld* world, Node* node)
51 {
52 if (!world->isNormal())
53 return 0;
54 return node->wrapper();
55 }
56
setInlineCachedWrapper(DOMWrapperWorld * world,Node * node,JSDOMWrapper * wrapper)57 inline bool setInlineCachedWrapper(DOMWrapperWorld* world, Node* node, JSDOMWrapper* wrapper)
58 {
59 if (!world->isNormal())
60 return false;
61 ASSERT(!node->wrapper());
62 node->setWrapper(*world->globalData(), wrapper, wrapperOwner(world, node), wrapperContext(world, node));
63 return true;
64 }
65
clearInlineCachedWrapper(DOMWrapperWorld * world,Node * node,JSDOMWrapper * wrapper)66 inline bool clearInlineCachedWrapper(DOMWrapperWorld* world, Node* node, JSDOMWrapper* wrapper)
67 {
68 if (!world->isNormal())
69 return false;
70 ASSERT_UNUSED(wrapper, node->wrapper() == wrapper);
71 node->clearWrapper();
72 return true;
73 }
74
75 JSC::JSValue createWrapper(JSC::ExecState*, JSDOMGlobalObject*, Node*);
76
toJS(JSC::ExecState * exec,JSDOMGlobalObject * globalObject,Node * node)77 inline JSC::JSValue toJS(JSC::ExecState* exec, JSDOMGlobalObject* globalObject, Node* node)
78 {
79 if (!node)
80 return JSC::jsNull();
81
82 JSNode* wrapper = static_cast<JSNode*>(getCachedWrapper(currentWorld(exec), node));
83 if (wrapper)
84 return wrapper;
85
86 return createWrapper(exec, globalObject, node);
87 }
88
root(Node * node)89 static inline Node* root(Node* node)
90 {
91 if (node->inDocument())
92 return node->document();
93
94 while (node->parentNode())
95 node = node->parentNode();
96 return node;
97 }
98
99 }
100
101 #endif // JSDOMNodeCustom_h
102