1/*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 * Copyright (C) 2016 Apple 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 are
7 * met:
8 *
9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 * * Neither the name of Google Inc. nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include "config.h"
33#include "ErrorEvent.h"
34
35#include "DOMWrapperWorld.h"
36#include "EventNames.h"
37#include <JavaScriptCore/HeapInlines.h>
38#include <JavaScriptCore/StrongInlines.h>
39
40namespace WebCore {
41using namespace JSC;
42
43ErrorEvent::ErrorEvent(const AtomicString& type, const Init& initializer, IsTrusted isTrusted)
44 : Event(type, initializer, isTrusted)
45 , m_message(initializer.message)
46 , m_fileName(initializer.filename)
47 , m_lineNumber(initializer.lineno)
48 , m_columnNumber(initializer.colno)
49 , m_error(initializer.error)
50{
51}
52
53ErrorEvent::ErrorEvent(const String& message, const String& fileName, unsigned lineNumber, unsigned columnNumber, JSC::Strong<JSC::Unknown> error)
54 : Event(eventNames().errorEvent, CanBubble::No, IsCancelable::Yes)
55 , m_message(message)
56 , m_fileName(fileName)
57 , m_lineNumber(lineNumber)
58 , m_columnNumber(columnNumber)
59 , m_error(error.get())
60{
61}
62
63ErrorEvent::~ErrorEvent() = default;
64
65EventInterface ErrorEvent::eventInterface() const
66{
67 return ErrorEventInterfaceType;
68}
69
70JSValue ErrorEvent::error(ExecState& state, JSGlobalObject& globalObject)
71{
72 JSValue error = m_error;
73 if (!error)
74 return jsNull();
75
76 if (!isWorldCompatible(state, error)) {
77 // We need to make sure ErrorEvents do not leak their error property across isolated DOM worlds.
78 // Ideally, we would check that the worlds have different privileges but that's not possible yet.
79 auto serializedError = trySerializeError(state);
80 if (!serializedError)
81 return jsNull();
82 return serializedError->deserialize(state, &globalObject);
83 }
84
85 return error;
86}
87
88RefPtr<SerializedScriptValue> ErrorEvent::trySerializeError(ExecState& exec)
89{
90 if (!m_serializedError && !m_triedToSerialize) {
91 m_serializedError = SerializedScriptValue::create(exec, m_error, SerializationErrorMode::NonThrowing);
92 m_triedToSerialize = true;
93 }
94 return m_serializedError;
95}
96
97bool ErrorEvent::isErrorEvent() const
98{
99 return true;
100}
101
102} // namespace WebCore
103