1 /*
2 * Copyright (C) 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
33 #if ENABLE(WORKERS)
34
35 #include "AbstractWorker.h"
36
37 #include "ExceptionCode.h"
38 #include "ScriptExecutionContext.h"
39 #include "V8Binding.h"
40 #include "V8CustomBinding.h"
41 #include "V8ObjectEventListener.h"
42 #include "V8Proxy.h"
43 #include "V8Utilities.h"
44 #include "WorkerContextExecutionProxy.h"
45
46 namespace WebCore {
47
getEventListener(AbstractWorker * worker,v8::Local<v8::Value> value,bool isAttribute,bool findOnly)48 PassRefPtr<EventListener> getEventListener(AbstractWorker* worker, v8::Local<v8::Value> value, bool isAttribute, bool findOnly)
49 {
50 if (worker->scriptExecutionContext()->isWorkerContext()) {
51 WorkerContextExecutionProxy* workerContextProxy = WorkerContextExecutionProxy::retrieve();
52 ASSERT(workerContextProxy);
53 return workerContextProxy->findOrCreateObjectEventListener(value, isAttribute, findOnly);
54 }
55
56 V8Proxy* proxy = V8Proxy::retrieve(worker->scriptExecutionContext());
57 if (proxy) {
58 V8EventListenerList* list = proxy->objectListeners();
59 return findOnly ? list->findWrapper(value, isAttribute) : list->findOrCreateWrapper<V8ObjectEventListener>(proxy->frame(), value, isAttribute);
60 }
61
62 return 0;
63 }
64
ACCESSOR_GETTER(AbstractWorkerOnerror)65 ACCESSOR_GETTER(AbstractWorkerOnerror)
66 {
67 INC_STATS(L"DOM.AbstractWorker.onerror._get");
68 AbstractWorker* worker = V8DOMWrapper::convertToNativeObject<AbstractWorker>(V8ClassIndex::ABSTRACTWORKER, info.Holder());
69 if (worker->onerror()) {
70 V8ObjectEventListener* listener = static_cast<V8ObjectEventListener*>(worker->onerror());
71 v8::Local<v8::Object> v8Listener = listener->getListenerObject();
72 return v8Listener;
73 }
74 return v8::Undefined();
75 }
76
ACCESSOR_SETTER(AbstractWorkerOnerror)77 ACCESSOR_SETTER(AbstractWorkerOnerror)
78 {
79 INC_STATS(L"DOM.AbstractWorker.onerror._set");
80 AbstractWorker* worker = V8DOMWrapper::convertToNativeObject<AbstractWorker>(V8ClassIndex::ABSTRACTWORKER, info.Holder());
81 V8ObjectEventListener* oldListener = static_cast<V8ObjectEventListener*>(worker->onerror());
82 if (value->IsNull()) {
83 if (oldListener) {
84 v8::Local<v8::Object> oldV8Listener = oldListener->getListenerObject();
85 removeHiddenDependency(info.Holder(), oldV8Listener, V8Custom::kAbstractWorkerRequestCacheIndex);
86 }
87
88 // Clear the listener.
89 worker->setOnerror(0);
90 } else {
91 RefPtr<EventListener> listener = getEventListener(worker, value, true, false);
92 if (listener) {
93 if (oldListener) {
94 v8::Local<v8::Object> oldV8Listener = oldListener->getListenerObject();
95 removeHiddenDependency(info.Holder(), oldV8Listener, V8Custom::kAbstractWorkerRequestCacheIndex);
96 }
97
98 worker->setOnerror(listener);
99 createHiddenDependency(info.Holder(), value, V8Custom::kAbstractWorkerRequestCacheIndex);
100 }
101 }
102 }
103
CALLBACK_FUNC_DECL(AbstractWorkerAddEventListener)104 CALLBACK_FUNC_DECL(AbstractWorkerAddEventListener)
105 {
106 INC_STATS(L"DOM.AbstractWorker.addEventListener()");
107 AbstractWorker* worker = V8DOMWrapper::convertToNativeObject<AbstractWorker>(V8ClassIndex::ABSTRACTWORKER, args.Holder());
108
109 RefPtr<EventListener> listener = getEventListener(worker, args[1], false, false);
110 if (listener) {
111 String type = toWebCoreString(args[0]);
112 bool useCapture = args[2]->BooleanValue();
113 worker->addEventListener(type, listener, useCapture);
114
115 createHiddenDependency(args.Holder(), args[1], V8Custom::kAbstractWorkerRequestCacheIndex);
116 }
117 return v8::Undefined();
118 }
119
CALLBACK_FUNC_DECL(AbstractWorkerRemoveEventListener)120 CALLBACK_FUNC_DECL(AbstractWorkerRemoveEventListener)
121 {
122 INC_STATS(L"DOM.AbstractWorker.removeEventListener()");
123 AbstractWorker* worker = V8DOMWrapper::convertToNativeObject<AbstractWorker>(V8ClassIndex::ABSTRACTWORKER, args.Holder());
124
125 RefPtr<EventListener> listener = getEventListener(worker, args[1], false, true);
126 if (listener) {
127 String type = toWebCoreString(args[0]);
128 bool useCapture = args[2]->BooleanValue();
129 worker->removeEventListener(type, listener.get(), useCapture);
130
131 removeHiddenDependency(args.Holder(), args[1], V8Custom::kAbstractWorkerRequestCacheIndex);
132 }
133
134 return v8::Undefined();
135 }
136
137 } // namespace WebCore
138
139 #endif // ENABLE(WORKERS)
140