1 /*
2 * Copyright (C) 2007 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 #include "config.h"
27 #include "JSNodeList.h"
28
29 #include "DynamicNodeList.h"
30 #include "JSNode.h"
31 #include "Node.h"
32 #include "NodeList.h"
33 #include <wtf/text/AtomicString.h>
34
35 using namespace JSC;
36
37 namespace WebCore {
38
39 class JSNodeListOwner : public JSC::WeakHandleOwner {
40 virtual bool isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown>, void* context, JSC::MarkStack&);
41 virtual void finalize(JSC::Handle<JSC::Unknown>, void* context);
42 };
43
isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle,void *,MarkStack & markStack)44 bool JSNodeListOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, MarkStack& markStack)
45 {
46 JSNodeList* jsNodeList = static_cast<JSNodeList*>(handle.get().asCell());
47 if (!jsNodeList->hasCustomProperties())
48 return false;
49 if (!jsNodeList->impl()->isDynamicNodeList())
50 return false;
51 return markStack.containsOpaqueRoot(root(static_cast<DynamicNodeList*>(jsNodeList->impl())->rootNode()));
52 }
53
finalize(JSC::Handle<JSC::Unknown> handle,void * context)54 void JSNodeListOwner::finalize(JSC::Handle<JSC::Unknown> handle, void* context)
55 {
56 JSNodeList* jsNodeList = static_cast<JSNodeList*>(handle.get().asCell());
57 DOMWrapperWorld* world = static_cast<DOMWrapperWorld*>(context);
58 uncacheWrapper(world, jsNodeList->impl(), jsNodeList);
59 }
60
wrapperOwner(DOMWrapperWorld *,NodeList *)61 inline JSC::WeakHandleOwner* wrapperOwner(DOMWrapperWorld*, NodeList*)
62 {
63 DEFINE_STATIC_LOCAL(JSNodeListOwner, jsNodeListOwner, ());
64 return &jsNodeListOwner;
65 }
66
wrapperContext(DOMWrapperWorld * world,NodeList *)67 inline void* wrapperContext(DOMWrapperWorld* world, NodeList*)
68 {
69 return world;
70 }
71
toJS(JSC::ExecState * exec,JSDOMGlobalObject * globalObject,NodeList * impl)72 JSC::JSValue toJS(JSC::ExecState* exec, JSDOMGlobalObject* globalObject, NodeList* impl)
73 {
74 return wrap<JSNodeList>(exec, globalObject, impl);
75 }
76
77 // Need to support call so that list(0) works.
callNodeList(ExecState * exec)78 static EncodedJSValue JSC_HOST_CALL callNodeList(ExecState* exec)
79 {
80 bool ok;
81 unsigned index = Identifier::toUInt32(exec->argument(0).toString(exec), ok);
82 if (!ok)
83 return JSValue::encode(jsUndefined());
84 return JSValue::encode(toJS(exec, static_cast<JSNodeList*>(exec->callee())->impl()->item(index)));
85 }
86
getCallData(CallData & callData)87 CallType JSNodeList::getCallData(CallData& callData)
88 {
89 callData.native.function = callNodeList;
90 return CallTypeHost;
91 }
92
canGetItemsForName(ExecState *,NodeList * impl,const Identifier & propertyName)93 bool JSNodeList::canGetItemsForName(ExecState*, NodeList* impl, const Identifier& propertyName)
94 {
95 return impl->itemWithName(identifierToAtomicString(propertyName));
96 }
97
nameGetter(ExecState * exec,JSValue slotBase,const Identifier & propertyName)98 JSValue JSNodeList::nameGetter(ExecState* exec, JSValue slotBase, const Identifier& propertyName)
99 {
100 JSNodeList* thisObj = static_cast<JSNodeList*>(asObject(slotBase));
101 return toJS(exec, thisObj->impl()->itemWithName(identifierToAtomicString(propertyName)));
102 }
103
104 } // namespace WebCore
105