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 COMPUTER, 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 COMPUTER, 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 27 #ifndef DragClient_h 28 #define DragClient_h 29 30 #include "DragActions.h" 31 #include "DragImage.h" 32 #include "IntPoint.h" 33 34 #if PLATFORM(MAC) 35 #ifdef __OBJC__ 36 @class DOMElement; 37 @class NSURL; 38 @class NSString; 39 @class NSPasteboard; 40 #else 41 class DOMElement; 42 class NSURL; 43 class NSString; 44 class NSPasteboard; 45 #endif 46 #endif 47 48 namespace WebCore { 49 50 class Clipboard; 51 class DragData; 52 class Frame; 53 class Image; 54 class HTMLImageElement; 55 56 class DragClient { 57 public: 58 virtual void willPerformDragDestinationAction(DragDestinationAction, DragData*) = 0; 59 virtual void willPerformDragSourceAction(DragSourceAction, const IntPoint&, Clipboard*) = 0; 60 virtual DragDestinationAction actionMaskForDrag(DragData*) = 0; 61 //We work in window rather than view coordinates here 62 virtual DragSourceAction dragSourceActionMaskForPoint(const IntPoint& windowPoint) = 0; 63 64 virtual void startDrag(DragImageRef dragImage, const IntPoint& dragImageOrigin, const IntPoint& eventPos, Clipboard*, Frame*, bool linkDrag = false) = 0; 65 66 virtual void dragControllerDestroyed() = 0; 67 #if PLATFORM(MAC) 68 //Mac specific helper functions to allow access to functionality in webkit -- such as 69 //web archives and NSPasteboard extras 70 //not abstract as that would require another #if PLATFORM(MAC) for the SVGImage client empty impl declareAndWriteDragImage(NSPasteboard *,DOMElement *,NSURL *,NSString *,Frame *)71 virtual void declareAndWriteDragImage(NSPasteboard*, DOMElement*, NSURL*, NSString*, Frame*) {}; 72 #endif 73 ~DragClient()74 virtual ~DragClient() {}; 75 }; 76 77 } 78 79 #endif // !DragClient_h 80 81