1/*
2 * Copyright (C) 2008, 2009 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 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 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
27#pragma once
28
29#include "JSDOMGlobalObject.h"
30#include "JSDOMWrapper.h"
31
32#if ENABLE(SERVICE_WORKER)
33#include "ServiceWorkerGlobalScope.h"
34#endif
35
36namespace JSC {
37class JSProxy;
38}
39
40namespace WebCore {
41
42class JSDedicatedWorkerGlobalScope;
43class JSWorkerGlobalScope;
44class WorkerGlobalScope;
45
46#if ENABLE(SERVICE_WORKER)
47class JSServiceWorkerGlobalScope;
48#endif
49
50class JSWorkerGlobalScopeBase : public JSDOMGlobalObject {
51 typedef JSDOMGlobalObject Base;
52public:
53 static void destroy(JSC::JSCell*);
54
55 DECLARE_INFO;
56
57 WorkerGlobalScope& wrapped() const { return *m_wrapped; }
58 JSC::JSProxy* proxy() const { ASSERT(m_proxy); return m_proxy.get(); }
59 ScriptExecutionContext* scriptExecutionContext() const;
60
61 static JSC::Structure* createStructure(JSC::VM& vm, JSC::JSGlobalObject* globalObject, JSC::JSValue prototype)
62 {
63 return JSC::Structure::create(vm, globalObject, prototype, JSC::TypeInfo(JSC::GlobalObjectType, StructureFlags), info());
64 }
65
66 static const JSC::GlobalObjectMethodTable s_globalObjectMethodTable;
67
68 static bool supportsRichSourceInfo(const JSC::JSGlobalObject*);
69 static bool shouldInterruptScript(const JSC::JSGlobalObject*);
70 static bool shouldInterruptScriptBeforeTimeout(const JSC::JSGlobalObject*);
71 static JSC::RuntimeFlags javaScriptRuntimeFlags(const JSC::JSGlobalObject*);
72 static void queueTaskToEventLoop(JSC::JSGlobalObject&, Ref<JSC::Microtask>&&);
73
74 void clearDOMGuardedObjects();
75
76protected:
77 JSWorkerGlobalScopeBase(JSC::VM&, JSC::Structure*, RefPtr<WorkerGlobalScope>&&);
78 void finishCreation(JSC::VM&, JSC::JSProxy*);
79
80 static void visitChildren(JSC::JSCell*, JSC::SlotVisitor&);
81
82private:
83 RefPtr<WorkerGlobalScope> m_wrapped;
84 JSC::WriteBarrier<JSC::JSProxy> m_proxy;
85};
86
87// Returns a JSWorkerGlobalScope or jsNull()
88// Always ignores the execState and passed globalObject, WorkerGlobalScope is itself a globalObject and will always use its own prototype chain.
89JSC::JSValue toJS(JSC::ExecState*, JSDOMGlobalObject*, WorkerGlobalScope&);
90inline JSC::JSValue toJS(JSC::ExecState* exec, JSDOMGlobalObject* globalObject, WorkerGlobalScope* scope) { return scope ? toJS(exec, globalObject, *scope) : JSC::jsNull(); }
91JSC::JSValue toJS(JSC::ExecState*, WorkerGlobalScope&);
92inline JSC::JSValue toJS(JSC::ExecState* exec, WorkerGlobalScope* scope) { return scope ? toJS(exec, *scope) : JSC::jsNull(); }
93
94JSDedicatedWorkerGlobalScope* toJSDedicatedWorkerGlobalScope(JSC::VM&, JSC::JSValue);
95JSWorkerGlobalScope* toJSWorkerGlobalScope(JSC::VM&, JSC::JSValue);
96
97#if ENABLE(SERVICE_WORKER)
98JSServiceWorkerGlobalScope* toJSServiceWorkerGlobalScope(JSC::VM&, JSC::JSValue);
99#endif
100} // namespace WebCore
101