1 | /* |
2 | * Copyright (C) 2007 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. ``AS IS'' AND ANY |
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #pragma once |
27 | |
28 | #include "DragActions.h" |
29 | #include "DragData.h" |
30 | #include "DragItem.h" |
31 | #include "FloatPoint.h" |
32 | #include "IntPoint.h" |
33 | |
34 | namespace WebCore { |
35 | |
36 | class DataTransfer; |
37 | class Element; |
38 | class Frame; |
39 | class Image; |
40 | struct PromisedAttachmentInfo; |
41 | |
42 | class DragClient { |
43 | public: |
44 | virtual void dragControllerDestroyed() = 0; |
45 | |
46 | virtual bool useLegacyDragClient() { return true; } |
47 | |
48 | virtual void willPerformDragDestinationAction(DragDestinationAction, const DragData&) = 0; |
49 | virtual void willPerformDragSourceAction(DragSourceAction, const IntPoint&, DataTransfer&) = 0; |
50 | virtual void didConcludeEditDrag() { } |
51 | virtual DragSourceAction dragSourceActionMaskForPoint(const IntPoint& rootViewPoint) = 0; |
52 | |
53 | virtual void startDrag(DragItem, DataTransfer&, Frame&) = 0; |
54 | virtual void dragEnded() { } |
55 | |
56 | virtual void beginDrag(DragItem, Frame&, const IntPoint&, const IntPoint&, DataTransfer&, DragSourceAction) { } |
57 | |
58 | #if PLATFORM(COCOA) |
59 | // Mac-specific helper function to allow access to web archives and NSPasteboard extras in WebKit. |
60 | // This is not abstract as that would require another #if PLATFORM(COCOA) for the SVGImage client empty implentation. |
61 | virtual void declareAndWriteDragImage(const String&, Element&, const URL&, const String&, Frame*) { } |
62 | #endif |
63 | |
64 | virtual ~DragClient() = default; |
65 | }; |
66 | |
67 | } // namespace WebCore |
68 | |