1/*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 * Copyright (C) 2009-2018 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 "JSMessageEvent.h"
34
35#include "JSBlob.h"
36#include "JSDOMBinding.h"
37#include "JSDOMConvertBufferSource.h"
38#include "JSDOMConvertInterface.h"
39#include "JSDOMConvertStrings.h"
40#include "JSDOMWindow.h"
41#include "JSEventTarget.h"
42#include "JSMessagePort.h"
43#include <JavaScriptCore/JSArray.h>
44#include <JavaScriptCore/JSArrayBuffer.h>
45
46namespace WebCore {
47
48JSC::JSValue JSMessageEvent::ports(JSC::ExecState& state) const
49{
50 auto throwScope = DECLARE_THROW_SCOPE(state.vm());
51 return cachedPropertyValue(state, *this, wrapped().cachedPorts(), [&] {
52 JSC::JSValue ports = toJS<IDLFrozenArray<IDLInterface<MessagePort>>>(state, *globalObject(), throwScope, wrapped().ports());
53 return ports;
54 });
55}
56
57JSC::JSValue JSMessageEvent::data(JSC::ExecState& state) const
58{
59 return cachedPropertyValue(state, *this, wrapped().cachedData(), [this, &state] {
60 return WTF::switchOn(wrapped().data(), [] (JSC::JSValue data) {
61 return data ? data : JSC::jsNull();
62 }, [this, &state] (const Ref<SerializedScriptValue>& data) {
63 // FIXME: Is it best to handle errors by returning null rather than throwing an exception?
64 return data->deserialize(state, globalObject(), wrapped().ports(), SerializationErrorMode::NonThrowing);
65 }, [&state] (const String& data) {
66 return toJS<IDLDOMString>(state, data);
67 }, [this, &state] (const Ref<Blob>& data) {
68 return toJS<IDLInterface<Blob>>(state, *globalObject(), data);
69 }, [this, &state] (const Ref<ArrayBuffer>& data) {
70 return toJS<IDLInterface<ArrayBuffer>>(state, *globalObject(), data);
71 });
72 });
73}
74
75void JSMessageEvent::visitAdditionalChildren(JSC::SlotVisitor& visitor)
76{
77 WTF::switchOn(wrapped().data(), [&visitor] (const JSValueInWrappedObject& data) {
78 data.visit(visitor);
79 }, [] (const Ref<SerializedScriptValue>&) {
80 }, [] (const String&) {
81 }, [] (const Ref<Blob>&) {
82 }, [] (const Ref<ArrayBuffer>&) {
83 });
84
85 wrapped().cachedData().visit(visitor);
86 wrapped().cachedPorts().visit(visitor);
87}
88
89} // namespace WebCore
90