зеркало из https://github.com/mozilla/pjs.git
100 строки
3.5 KiB
C++
100 строки
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsDragService_h__
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#define nsDragService_h__
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#include "nsBaseDragService.h"
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#include <windows.h>
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#include <shlobj.h>
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struct IDropSource;
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struct IDataObject;
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class nsNativeDragTarget;
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class nsDataObjCollection;
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class nsString;
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/**
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* Native Win32 DragService wrapper
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*/
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class nsDragService : public nsBaseDragService
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{
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public:
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nsDragService();
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virtual ~nsDragService();
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// nsIDragService
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NS_IMETHOD InvokeDragSession(nsIDOMNode *aDOMNode,
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nsISupportsArray *anArrayTransferables,
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nsIScriptableRegion *aRegion,
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PRUint32 aActionType);
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// nsIDragSession
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NS_IMETHOD GetData(nsITransferable * aTransferable, PRUint32 anItem);
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NS_IMETHOD GetNumDropItems(PRUint32 * aNumItems);
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NS_IMETHOD IsDataFlavorSupported(const char *aDataFlavor, bool *_retval);
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NS_IMETHOD EndDragSession(bool aDoneDrag);
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// native impl.
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NS_IMETHOD SetIDataObject(IDataObject * aDataObj);
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NS_IMETHOD StartInvokingDragSession(IDataObject * aDataObj,
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PRUint32 aActionType);
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// A drop occurred within the application vs. outside of it.
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void SetDroppedLocal();
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protected:
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nsDataObjCollection* GetDataObjCollection(IDataObject * aDataObj);
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// determine if we have a single data object or one of our private
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// collections
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bool IsCollectionObject(IDataObject* inDataObj);
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// Create a bitmap for drag operations
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bool CreateDragImage(nsIDOMNode *aDOMNode,
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nsIScriptableRegion *aRegion,
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SHDRAGIMAGE *psdi);
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IDropSource * mNativeDragSrc;
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nsNativeDragTarget * mNativeDragTarget;
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IDataObject * mDataObject;
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bool mSentLocalDropEvent;
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};
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#endif // nsDragService_h__
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