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/*********************************************************
* Copyright (C) 2007 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation version 2.1 and no later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the Lesser GNU General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*********************************************************/
/*
* dndBase.h --
*
* Base object for DnD. This is the common interface between UI and
* cui DnD protocol layer. Both host side and guest side, and also
* different platforms, share this same interface.
*/
#ifndef DND_BASE_H
#define DND_BASE_H
#include <sigc++/connection.h>
#include <vector>
#ifdef VMX86_TOOLS
/*
* LIB_EXPORT definition is not needed on guest.
*/
# define LIB_EXPORT
#else
/*
* The interface class on host side for Windows is in dll which needs
* LIB_EXPORT definition.
*/
# include "libExport.hh"
#endif
extern "C" {
#include "dnd.h"
#include "unityCommon.h"
}
class LIB_EXPORT DnDBase
{
public:
virtual ~DnDBase(void) {};
/* sigc signals for local UI callbacks. */
/* Local UI as DnD source. */
sigc::signal<void, const CPClipboard*> dragExitChanged;
sigc::signal<void> dndUngrabChanged; /* X11's notion of ungrab. */
sigc::signal<void, bool, std::vector<uint8> > fileCopyDoneChanged;
sigc::signal<void> sourceDropChanged;
sigc::signal<void> sourceCancelChanged;
sigc::signal<void, const CPClipboard*, std::string> dragStartChanged;
/* Local UI as DnD target. */
sigc::signal<void, DND_DROPEFFECT> updateFeedbackChanged;
sigc::signal<void, bool, int, int> updateDetWndChanged;
sigc::signal<void, bool, uint32, bool> updateUnityDetWndChanged;
sigc::signal<void, int32, int32> targetPrivateDropChanged;
sigc::signal<void> reset;
sigc::signal<void> disable;
sigc::signal<void> enable;
sigc::signal<void, int, int> updateMouseChanged;
sigc::signal<void> moveDetWndToMousePos;
/* Guest cancel signals. */
sigc::signal<void> ghCancel;
/* cui DnD protocol layer API exposed to UI (all platforms). */
/* Local UI as DnD source. */
virtual void UpdateUnityDetWnd(bool bShow, uint32 unityWndId) {};
virtual void DragLeave(int32 x, int32 y) = 0;
virtual void SourceCancel(void) = 0;
virtual void SourceDrop(DND_DROPEFFECT feedback) = 0;
/* Local UI as DnD target. */
virtual void DragEnter(const CPClipboard* clip) = 0;
/* Host only. */
virtual void SetMouse(int32 x, int32 y, bool down = true) = 0;
/* Guest only. */
virtual void SetFeedback(DND_DROPEFFECT feedback) = 0;
virtual void TargetCancel(void) = 0;
virtual void TargetDrop(const CPClipboard *clip,
int32 x,
int32 y) = 0;
const CPClipboard* GetClipboard(void) { return &mClipboard; }
virtual bool IsDnDAllowed(void) = 0;
protected:
/*
* For details about state machine definition, please refer to
* https://wiki.eng.vmware.com/ToolsDnDV3FlowChart
*/
enum DND_STATE {
DNDSTATE_INVALID = 0,
DNDSTATE_READY,
/* H->G */
DNDSTATE_ENTERING,
DNDSTATE_STARTING,
DNDSTATE_DRAGGING_INSIDE,
/* G->H */
DNDSTATE_QUERY_EXITING,
DNDSTATE_UNGRABING, // ask mks to ungrab, v2 only
DNDSTATE_DRAGGING_OUTSIDE,
DNDSTATE_DRAGGING_PRIVATE,
};
DND_STATE mState;
DND_DROPEFFECT mFeedback;
CPClipboard mClipboard;
};
#endif // DND_BASE_H
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