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89 lines
2.6 KiB
C++
89 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsIDragService_h__
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#define nsIDragService_h__
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#include "nsISupports.h"
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class nsIDragSession;
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class nsITransferable;
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class nsISupportsArray;
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class nsIRegion;
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// {8B5314BB-DB01-11d2-96CE-0060B0FB9956}
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#define NS_IDRAGSERVICE_IID \
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{ 0x8b5314bb, 0xdb01, 0x11d2, { 0x96, 0xce, 0x0, 0x60, 0xb0, 0xfb, 0x99, 0x56 } }
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class nsIDragService : public nsISupports {
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public:
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NS_DEFINE_STATIC_IID_ACCESSOR(NS_IDRAGSERVICE_IID)
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enum {
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DRAGDROP_ACTION_NONE = 0x0000,
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DRAGDROP_ACTION_COPY = 0x0001,
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DRAGDROP_ACTION_MOVE = 0x0002,
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DRAGDROP_ACTION_LINK = 0x0004
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};
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/**
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* Starts a modal drag session with an array of transaferables
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*
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* @param anArrayTransferables - an array of transferables to be dragged
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* @param aRegion - a region containing rectangles for cursor feedback,
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* in window coordinates.
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*/
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NS_IMETHOD InvokeDragSession (nsISupportsArray * anArrayTransferables, nsIRegion * aRegion, PRUint32 aActionType) = 0;
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/**
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* Starts a modal drag session with a single transferable
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*
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* @param aTransferable the transferable to be dragged
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* @param aRegion - a region containing rectangles for cursor feedback,
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* in window coordinates.
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*/
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NS_IMETHOD InvokeDragSessionSingle (nsITransferable * aTransferable, nsIRegion * aRegion, PRUint32 aActionType) = 0;
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/**
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* Returns the current Drag Session
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*
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* @param aSession the current drag session
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*/
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NS_IMETHOD GetCurrentSession (nsIDragSession ** aSession) = 0;
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/**
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* Tells the Drag Service to start a drag sessiojn, this is called when
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* an external drag occurs
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*
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*/
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NS_IMETHOD StartDragSession () = 0;
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/**
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* Tells the Drag Service to end a drag sessiojn, this is called when
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* an external drag occurs
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*
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*/
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NS_IMETHOD EndDragSession () = 0;
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};
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#endif
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