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 | |
36 | namespace WebCore { |
37 | |
38 | struct 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 | |
59 | template<class Encoder> |
60 | void 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 | |
77 | template<class Decoder> |
78 | bool 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 | |