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#pragma once
27
28#if ENABLE(CSS_PAINTING_API)
29
30#include <JavaScriptCore/Debugger.h>
31#include <JavaScriptCore/JSRunLoopTimer.h>
32#include <JavaScriptCore/Strong.h>
33#include <wtf/Forward.h>
34#include <wtf/Lock.h>
35#include <wtf/NakedPtr.h>
36
37namespace JSC {
38class VM;
39}
40
41namespace WebCore {
42
43class JSWorkletGlobalScope;
44class ScriptSourceCode;
45class WorkletConsoleClient;
46class WorkletGlobalScope;
47class WorkletConsoleClient;
48
49class WorkletScriptController {
50 WTF_MAKE_NONCOPYABLE(WorkletScriptController); WTF_MAKE_FAST_ALLOCATED;
51public:
52 WorkletScriptController(WorkletGlobalScope*);
53 ~WorkletScriptController();
54
55 JSWorkletGlobalScope* workletGlobalScopeWrapper()
56 {
57 initScriptIfNeeded();
58 return m_workletGlobalScopeWrapper.get();
59 }
60
61 void forbidExecution();
62 bool isExecutionForbidden() const;
63
64 void disableEval(const String& errorMessage);
65 void disableWebAssembly(const String& errorMessage);
66
67 void evaluate(const ScriptSourceCode&, String* returnedExceptionMessage = nullptr);
68 void evaluate(const ScriptSourceCode&, NakedPtr<JSC::Exception>& returnedException, String* returnedExceptionMessage = nullptr);
69
70 void setException(JSC::Exception*);
71
72 JSC::VM& vm() { return *m_vm; }
73
74private:
75 void initScriptIfNeeded()
76 {
77 if (!m_workletGlobalScopeWrapper)
78 initScript();
79 }
80 WEBCORE_EXPORT void initScript();
81
82 template<typename JSGlobalScopePrototype, typename JSGlobalScope, typename GlobalScope>
83 void initScriptWithSubclass();
84
85 bool m_executionForbidden { false };
86 RefPtr<JSC::VM> m_vm;
87 WorkletGlobalScope* m_workletGlobalScope;
88 std::unique_ptr<WorkletConsoleClient> m_consoleClient;
89 JSC::Strong<JSWorkletGlobalScope> m_workletGlobalScopeWrapper;
90};
91
92} // namespace WebCore
93#endif
94