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. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27#include <wtf/HashSet.h>
28#include <wtf/text/StringHash.h>
29#include <wtf/text/WTFString.h>
30
31namespace WebCore {
32struct CanvasActivityRecord {
33 HashSet<String> textWritten;
34 bool wasDataRead { false };
35
36 bool recordWrittenOrMeasuredText(const String&);
37 void mergeWith(const CanvasActivityRecord&);
38
39 template <class Encoder> void encode(Encoder&) const;
40 template <class Decoder> static bool decode(Decoder&, CanvasActivityRecord&);
41};
42
43template <class Encoder>
44void CanvasActivityRecord::encode(Encoder& encoder) const
45{
46 encoder << textWritten;
47 encoder << wasDataRead;
48}
49
50template <class Decoder>
51bool CanvasActivityRecord::decode(Decoder& decoder, CanvasActivityRecord& canvasActivityRecord)
52{
53 if (!decoder.decode(canvasActivityRecord.textWritten))
54 return false;
55 if (!decoder.decode(canvasActivityRecord.wasDataRead))
56 return false;
57 return true;
58}
59} // namespace WebCore
60