1/*
2 * Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
3 * Copyright (C) 2009 Google Inc. All Rights Reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 */
27
28#include "config.h"
29
30#include "JSWorkerGlobalScopeBase.h"
31
32#include "DOMWrapperWorld.h"
33#include "JSDOMGlobalObjectTask.h"
34#include "JSDedicatedWorkerGlobalScope.h"
35#include "JSWorkerGlobalScope.h"
36#include "WorkerGlobalScope.h"
37#include <runtime/JSCJSValueInlines.h>
38#include <runtime/Microtask.h>
39
40#if ENABLE(SHARED_WORKERS)
41#include "JSSharedWorkerGlobalScope.h"
42#endif
43
44using namespace JSC;
45
46namespace WebCore {
47
48const ClassInfo JSWorkerGlobalScopeBase::s_info = { "WorkerGlobalScope", &JSDOMGlobalObject::s_info, 0, 0, CREATE_METHOD_TABLE(JSWorkerGlobalScopeBase) };
49
50const GlobalObjectMethodTable JSWorkerGlobalScopeBase::s_globalObjectMethodTable = { &allowsAccessFrom, &supportsProfiling, &supportsRichSourceInfo, &shouldInterruptScript, &javaScriptExperimentsEnabled, &queueTaskToEventLoop, &shouldInterruptScriptBeforeTimeout };
51
52JSWorkerGlobalScopeBase::JSWorkerGlobalScopeBase(JSC::VM& vm, JSC::Structure* structure, PassRefPtr<WorkerGlobalScope> impl)
53    : JSDOMGlobalObject(vm, structure, &normalWorld(vm), &s_globalObjectMethodTable)
54    , m_impl(impl)
55{
56}
57
58void JSWorkerGlobalScopeBase::finishCreation(VM& vm)
59{
60    Base::finishCreation(vm);
61    ASSERT(inherits(info()));
62}
63
64void JSWorkerGlobalScopeBase::destroy(JSCell* cell)
65{
66    static_cast<JSWorkerGlobalScopeBase*>(cell)->JSWorkerGlobalScopeBase::~JSWorkerGlobalScopeBase();
67}
68
69ScriptExecutionContext* JSWorkerGlobalScopeBase::scriptExecutionContext() const
70{
71    return m_impl.get();
72}
73
74bool JSWorkerGlobalScopeBase::allowsAccessFrom(const JSGlobalObject* object, ExecState* exec)
75{
76    return JSGlobalObject::allowsAccessFrom(object, exec);
77}
78
79bool JSWorkerGlobalScopeBase::supportsProfiling(const JSGlobalObject* object)
80{
81    return JSGlobalObject::supportsProfiling(object);
82}
83
84bool JSWorkerGlobalScopeBase::supportsRichSourceInfo(const JSGlobalObject* object)
85{
86    return JSGlobalObject::supportsRichSourceInfo(object);
87}
88
89bool JSWorkerGlobalScopeBase::shouldInterruptScript(const JSGlobalObject* object)
90{
91    return JSGlobalObject::shouldInterruptScript(object);
92}
93
94bool JSWorkerGlobalScopeBase::shouldInterruptScriptBeforeTimeout(const JSGlobalObject* object)
95{
96    return JSGlobalObject::shouldInterruptScriptBeforeTimeout(object);
97}
98
99bool JSWorkerGlobalScopeBase::javaScriptExperimentsEnabled(const JSGlobalObject* object)
100{
101    return JSGlobalObject::javaScriptExperimentsEnabled(object);
102}
103
104void JSWorkerGlobalScopeBase::queueTaskToEventLoop(const JSGlobalObject* object, PassRefPtr<Microtask> task)
105{
106    const JSWorkerGlobalScopeBase* thisObject = static_cast<const JSWorkerGlobalScopeBase*>(object);
107    thisObject->scriptExecutionContext()->postTask(JSGlobalObjectTask((JSDOMGlobalObject*)thisObject, task));
108}
109
110JSValue toJS(ExecState* exec, JSDOMGlobalObject*, WorkerGlobalScope* workerGlobalScope)
111{
112    return toJS(exec, workerGlobalScope);
113}
114
115JSValue toJS(ExecState*, WorkerGlobalScope* workerGlobalScope)
116{
117    if (!workerGlobalScope)
118        return jsNull();
119    WorkerScriptController* script = workerGlobalScope->script();
120    if (!script)
121        return jsNull();
122    JSWorkerGlobalScope* contextWrapper = script->workerGlobalScopeWrapper();
123    ASSERT(contextWrapper);
124    return contextWrapper;
125}
126
127JSDedicatedWorkerGlobalScope* toJSDedicatedWorkerGlobalScope(JSValue value)
128{
129    if (!value.isObject())
130        return 0;
131    const ClassInfo* classInfo = asObject(value)->classInfo();
132    if (classInfo == JSDedicatedWorkerGlobalScope::info())
133        return jsCast<JSDedicatedWorkerGlobalScope*>(asObject(value));
134    if (classInfo == JSProxy::info())
135        return jsDynamicCast<JSDedicatedWorkerGlobalScope*>(jsCast<JSProxy*>(asObject(value))->target());
136    return 0;
137}
138
139#if ENABLE(SHARED_WORKERS)
140JSSharedWorkerGlobalScope* toJSSharedWorkerGlobalScope(JSValue value)
141{
142    if (!value.isObject())
143        return 0;
144    const ClassInfo* classInfo = asObject(value)->classInfo();
145    if (classInfo == JSSharedWorkerGlobalScope::info())
146        return jsCast<JSSharedWorkerGlobalScope*>(asObject(value));
147    if (classInfo == JSProxy::info())
148        return jsDynamicCast<JSSharedWorkerGlobalScope*>(jsCast<JSProxy*>(asObject(value))->target());
149    return 0;
150}
151#endif
152
153JSWorkerGlobalScope* toJSWorkerGlobalScope(JSValue value)
154{
155    JSWorkerGlobalScope* context = toJSDedicatedWorkerGlobalScope(value);
156#if ENABLE(SHARED_WORKERS)
157    if (!context)
158        context = toJSSharedWorkerGlobalScope(value);
159#endif
160    return context;
161}
162
163} // namespace WebCore
164