barrier/lib/platform/CMSWindowsClipboard.h

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/*
* synergy -- mouse and keyboard sharing utility
* Copyright (C) 2002 Chris Schoeneman, Nick Bolton, Sorin Sbarnea
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file COPYING that should have accompanied this file.
*
* This package 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
* GNU General Public License for more details.
2010-06-20 17:38:51 +00:00
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CMSWINDOWSCLIPBOARD_H
#define CMSWINDOWSCLIPBOARD_H
#include "IClipboard.h"
#include "stdvector.h"
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
class IMSWindowsClipboardConverter;
//! Microsoft windows clipboard implementation
class CMSWindowsClipboard : public IClipboard {
public:
CMSWindowsClipboard(HWND window);
virtual ~CMSWindowsClipboard();
//! Empty clipboard without ownership
/*!
Take ownership of the clipboard and clear all data from it.
This must be called between a successful open() and close().
Return false if the clipboard ownership could not be taken;
the clipboard should not be emptied in this case. Unlike
empty(), isOwnedBySynergy() will return false when emptied
this way. This is useful when synergy wants to put data on
clipboard but pretend (to itself) that some other app did it.
When using empty(), synergy assumes the data came from the
server and doesn't need to be sent back. emptyUnowned()
makes synergy send the data to the server.
*/
bool emptyUnowned();
//! Test if clipboard is owned by synergy
static bool isOwnedBySynergy();
// IClipboard overrides
virtual bool empty();
virtual void add(EFormat, const CString& data);
virtual bool open(Time) const;
virtual void close() const;
virtual Time getTime() const;
virtual bool has(EFormat) const;
virtual CString get(EFormat) const;
private:
void clearConverters();
UINT convertFormatToWin32(EFormat) const;
HANDLE convertTextToWin32(const CString& data) const;
CString convertTextFromWin32(HANDLE) const;
static UINT getOwnershipFormat();
private:
typedef std::vector<IMSWindowsClipboardConverter*> ConverterList;
HWND m_window;
mutable Time m_time;
ConverterList m_converters;
static UINT s_ownershipFormat;
};
//! Clipboard format converter interface
/*!
This interface defines the methods common to all win32 clipboard format
converters.
*/
class IMSWindowsClipboardConverter : public IInterface {
public:
// accessors
// return the clipboard format this object converts from/to
virtual IClipboard::EFormat
getFormat() const = 0;
// return the atom representing the win32 clipboard format that
// this object converts from/to
virtual UINT getWin32Format() const = 0;
// convert from the IClipboard format to the win32 clipboard format.
// the input data must be in the IClipboard format returned by
// getFormat(). the return data will be in the win32 clipboard
// format returned by getWin32Format(), allocated by GlobalAlloc().
virtual HANDLE fromIClipboard(const CString&) const = 0;
// convert from the win32 clipboard format to the IClipboard format
// (i.e., the reverse of fromIClipboard()).
virtual CString toIClipboard(HANDLE data) const = 0;
};
#endif