1/*
2 * Copyright (C) 2018 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#if ENABLE(CSS_PAINTING_API)
30
31#include "JSDOMGlobalObject.h"
32#include "JSDOMWrapper.h"
33#include "JSEventTarget.h"
34
35namespace WebCore {
36
37class JSWorkletGlobalScope;
38class WorkletGlobalScope;
39
40class JSWorkletGlobalScopeBase : public JSDOMGlobalObject {
41 using Base = JSDOMGlobalObject;
42public:
43 static void destroy(JSC::JSCell*);
44
45 DECLARE_INFO;
46
47 WorkletGlobalScope& wrapped() const { return *m_wrapped; }
48 JSC::JSProxy* proxy() const { ASSERT(m_proxy); return m_proxy.get(); }
49 ScriptExecutionContext* scriptExecutionContext() const;
50
51 static JSC::Structure* createStructure(JSC::VM& vm, JSC::JSGlobalObject* globalObject, JSC::JSValue prototype)
52 {
53 return JSC::Structure::create(vm, globalObject, prototype, JSC::TypeInfo(JSC::GlobalObjectType, StructureFlags), info());
54 }
55
56 static const JSC::GlobalObjectMethodTable s_globalObjectMethodTable;
57
58 static bool supportsRichSourceInfo(const JSC::JSGlobalObject*);
59 static bool shouldInterruptScript(const JSC::JSGlobalObject*);
60 static bool shouldInterruptScriptBeforeTimeout(const JSC::JSGlobalObject*);
61 static JSC::RuntimeFlags javaScriptRuntimeFlags(const JSC::JSGlobalObject*);
62 static void queueTaskToEventLoop(JSC::JSGlobalObject&, Ref<JSC::Microtask>&&);
63
64 void clearDOMGuardedObjects();
65
66protected:
67 JSWorkletGlobalScopeBase(JSC::VM&, JSC::Structure*, RefPtr<WorkletGlobalScope>&&);
68 void finishCreation(JSC::VM&, JSC::JSProxy*);
69
70 static void visitChildren(JSC::JSCell*, JSC::SlotVisitor&);
71
72private:
73 RefPtr<WorkletGlobalScope> m_wrapped;
74 JSC::WriteBarrier<JSC::JSProxy> m_proxy;
75};
76
77// Returns a JSWorkletGlobalScope or jsNull()
78// Always ignores the execState and passed globalObject, WorkletGlobalScope is itself a globalObject and will always use its own prototype chain.
79JSC::JSValue toJS(JSC::ExecState*, JSDOMGlobalObject*, WorkletGlobalScope&);
80inline JSC::JSValue toJS(JSC::ExecState* exec, JSDOMGlobalObject* globalObject, WorkletGlobalScope* scope) { return scope ? toJS(exec, globalObject, *scope) : JSC::jsNull(); }
81JSC::JSValue toJS(JSC::ExecState*, WorkletGlobalScope&);
82inline JSC::JSValue toJS(JSC::ExecState* exec, WorkletGlobalScope* scope) { return scope ? toJS(exec, *scope) : JSC::jsNull(); }
83
84JSWorkletGlobalScope* toJSWorkletGlobalScope(JSC::VM&, JSC::JSValue);
85
86} // namespace WebCore
87
88#endif // ENABLE(CSS_PAINTING_API)
89