1 /* 2 * Copyright (C) 2011 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 #ifndef WebDragSource_h 27 #define WebDragSource_h 28 29 #include <WTF/RefCounted.h> 30 #include <WebCore/COMPtr.h> 31 #include <objidl.h> 32 33 class WebDragSource : public IDropSource, public RefCounted<WebDragSource> { 34 public: 35 static PassRefPtr<WebDragSource> createInstance(); 36 37 private: 38 virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject); 39 virtual ULONG STDMETHODCALLTYPE AddRef(); 40 virtual ULONG STDMETHODCALLTYPE Release(); 41 virtual HRESULT STDMETHODCALLTYPE QueryContinueDrag(BOOL fEscapePressed, DWORD grfState); 42 virtual HRESULT STDMETHODCALLTYPE GiveFeedback(DWORD dwEffect); 43 WebDragSource(); 44 }; 45 46 #endif // !WebDragSource_h 47