1/*
2 * Copyright (C) 2017 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
28#include "DragActions.h"
29#include "DragImage.h"
30#include "FloatPoint.h"
31#include "IntPoint.h"
32#include "IntRect.h"
33#include "PasteboardWriterData.h"
34#include "PromisedAttachmentInfo.h"
35
36namespace WebCore {
37
38struct DragItem final {
39 DragImage image;
40
41 // Where the image should be positioned relative to the cursor.
42 FloatPoint imageAnchorPoint;
43
44 DragSourceAction sourceAction { DragSourceActionNone };
45 IntPoint eventPositionInContentCoordinates;
46 IntPoint dragLocationInContentCoordinates;
47 IntPoint dragLocationInWindowCoordinates;
48 String title;
49 URL url;
50 IntRect dragPreviewFrameInRootViewCoordinates;
51
52 PasteboardWriterData data;
53 PromisedAttachmentInfo promisedAttachmentInfo;
54
55 template<class Encoder> void encode(Encoder&) const;
56 template<class Decoder> static bool decode(Decoder&, DragItem&);
57};
58
59template<class Encoder>
60void DragItem::encode(Encoder& encoder) const
61{
62 // FIXME(173815): We should encode and decode PasteboardWriterData and platform drag image data
63 // here too, as part of moving off of the legacy dragging codepath.
64 encoder.encodeEnum(sourceAction);
65 encoder << imageAnchorPoint << eventPositionInContentCoordinates << dragLocationInContentCoordinates << dragLocationInWindowCoordinates << title << url << dragPreviewFrameInRootViewCoordinates;
66 bool hasIndicatorData = image.hasIndicatorData();
67 encoder << hasIndicatorData;
68 if (hasIndicatorData)
69 encoder << image.indicatorData().value();
70 bool hasVisiblePath = image.hasVisiblePath();
71 encoder << hasVisiblePath;
72 if (hasVisiblePath)
73 encoder << image.visiblePath().value();
74 encoder << promisedAttachmentInfo;
75}
76
77template<class Decoder>
78bool DragItem::decode(Decoder& decoder, DragItem& result)
79{
80 if (!decoder.decodeEnum(result.sourceAction))
81 return false;
82 if (!decoder.decode(result.imageAnchorPoint))
83 return false;
84 if (!decoder.decode(result.eventPositionInContentCoordinates))
85 return false;
86 if (!decoder.decode(result.dragLocationInContentCoordinates))
87 return false;
88 if (!decoder.decode(result.dragLocationInWindowCoordinates))
89 return false;
90 if (!decoder.decode(result.title))
91 return false;
92 if (!decoder.decode(result.url))
93 return false;
94 if (!decoder.decode(result.dragPreviewFrameInRootViewCoordinates))
95 return false;
96 bool hasIndicatorData;
97 if (!decoder.decode(hasIndicatorData))
98 return false;
99 if (hasIndicatorData) {
100 Optional<TextIndicatorData> indicatorData;
101 decoder >> indicatorData;
102 if (!indicatorData)
103 return false;
104 result.image.setIndicatorData(*indicatorData);
105 }
106 bool hasVisiblePath;
107 if (!decoder.decode(hasVisiblePath))
108 return false;
109 if (hasVisiblePath) {
110 Optional<Path> visiblePath;
111 decoder >> visiblePath;
112 if (!visiblePath)
113 return false;
114 result.image.setVisiblePath(*visiblePath);
115 }
116 if (!decoder.decode(result.promisedAttachmentInfo))
117 return false;
118 return true;
119}
120
121}
122