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71 lines
2.9 KiB
C++
71 lines
2.9 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* nsIDragSessionOS2 encapsulates support for OS/2 dragover/drop events,
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* i.e. operations where Mozilla is the target of a drag (nsIDragService
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* handles source operations). Its public methods correspond to the d&d
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* messages a PM window receives. Its protected methods recast native
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* data as nsITransferable flavors during drag-enter and drop events.
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*
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* nsIDragSessionOS2 supports these native formats: WPS Url objects,
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* files, the contents of files (Alt-drop), and text from DragText.
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* Data is presented to Mozilla as URI-text, HTML, and/or plain-text.
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* Only single-item native drops are supported. If the dropped file
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* or text does not exist yet, nsIDragSessionOS2 will have the source
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* render the data asynchronously.
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*/
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#ifndef nsIDragSessionOS2_h__
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#define nsIDragSessionOS2_h__
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#include "nsISupports.h"
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#define INCL_PM
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#include <os2.h>
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#define NS_IDRAGSESSIONOS2_IID_STR "bc4258b8-33ce-4624-adcb-4b62bb5164c0"
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#define NS_IDRAGSESSIONOS2_IID \
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{ 0xbc4258b8, 0x33ce, 0x4624, { 0xad, 0xcb, 0x4b, 0x62, 0xbb, 0x51, 0x64, 0xc0 } }
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class nsIDragSessionOS2 : public nsISupports
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{
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_IDRAGSESSIONOS2_IID)
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/** the dragFlags returned by most public methods fall into two groups */
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/** Mozilla's dragover status */
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enum { DND_NONE = 0 };
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enum { DND_NATIVEDRAG = 1 };
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enum { DND_MOZDRAG = 2 };
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enum { DND_INDROP = 4 };
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enum { DND_DRAGSTATUS = DND_NATIVEDRAG | DND_MOZDRAG | DND_INDROP };
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/** tasks the caller should perform */
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enum { DND_DISPATCHENTEREVENT = 16 };
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enum { DND_DISPATCHEVENT = 32 };
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enum { DND_GETDRAGOVERRESULT = 64 };
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enum { DND_EXITSESSION = 128 };
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NS_IMETHOD DragOverMsg(PDRAGINFO pdinfo, MRESULT &mr, PRUint32* dragFlags) = 0;
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NS_IMETHOD GetDragoverResult(MRESULT& mr) = 0;
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NS_IMETHOD DragLeaveMsg(PDRAGINFO pdinfo, PRUint32* dragFlags) = 0;
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NS_IMETHOD DropHelpMsg(PDRAGINFO pdinfo, PRUint32* dragFlags) = 0;
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NS_IMETHOD ExitSession(PRUint32* dragFlags) = 0;
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NS_IMETHOD DropMsg(PDRAGINFO pdinfo, HWND hwnd, PRUint32* dragFlags) = 0;
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NS_IMETHOD RenderCompleteMsg(PDRAGTRANSFER pdxfer, USHORT usResult, PRUint32* dragFlags) = 0;
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protected:
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NS_IMETHOD NativeDragEnter(PDRAGINFO pdinfo) = 0;
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NS_IMETHOD NativeDrop(PDRAGINFO pdinfo, HWND hwnd, bool* rendering) = 0;
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NS_IMETHOD NativeRenderComplete(PDRAGTRANSFER pdxfer, USHORT usResult) = 0;
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NS_IMETHOD NativeDataToTransferable( PCSZ pszText, PCSZ pszTitle, bool isUrl) = 0;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsIDragSessionOS2, NS_IDRAGSESSIONOS2_IID)
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#endif // nsIDragSessionOS2_h__
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