104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
/*
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* Deskflow -- mouse and keyboard sharing utility
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* SPDX-FileCopyrightText: (C) 2012 - 2016 Symless Ltd.
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* SPDX-FileCopyrightText: (C) 2002 Chris Schoeneman
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* SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
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*/
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#pragma once
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#include "deskflow/IClipboard.h"
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#include "platform/MSWindowsClipboardFacade.h"
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#include <vector>
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#define WIN32_LEAN_AND_MEAN
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#include <Windows.h>
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class IMSWindowsClipboardConverter;
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class IMSWindowsClipboardFacade;
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//! Microsoft windows clipboard implementation
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class MSWindowsClipboard : public IClipboard
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{
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public:
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MSWindowsClipboard(HWND window);
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MSWindowsClipboard(HWND window, IMSWindowsClipboardFacade &facade);
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~MSWindowsClipboard() override;
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//! Empty clipboard without ownership
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/*!
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Take ownership of the clipboard and clear all data from it.
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This must be called between a successful open() and close().
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Return false if the clipboard ownership could not be taken;
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the clipboard should not be emptied in this case. Unlike
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empty(), isOwnedByDeskflow() will return false when emptied
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this way. This is useful when deskflow wants to put data on
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clipboard but pretend (to itself) that some other app did it.
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When using empty(), deskflow assumes the data came from the
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server and doesn't need to be sent back. emptyUnowned()
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makes deskflow send the data to the server.
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*/
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bool emptyUnowned();
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//! Test if clipboard is owned by deskflow
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static bool isOwnedByDeskflow();
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// IClipboard overrides
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bool empty() override;
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void add(EFormat, const std::string &data) override;
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bool open(Time) const override;
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void close() const override;
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Time getTime() const override;
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bool has(EFormat) const override;
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std::string get(EFormat) const override;
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void setFacade(IMSWindowsClipboardFacade &facade);
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private:
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void clearConverters();
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UINT convertFormatToWin32(EFormat) const;
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HANDLE convertTextToWin32(const std::string &data) const;
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std::string convertTextFromWin32(HANDLE) const;
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static UINT getOwnershipFormat();
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private:
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using ConverterList = std::vector<IMSWindowsClipboardConverter *>;
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HWND m_window;
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mutable Time m_time;
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ConverterList m_converters;
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static UINT s_ownershipFormat;
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IMSWindowsClipboardFacade *m_facade;
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bool m_deleteFacade;
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};
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//! Clipboard format converter interface
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/*!
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This interface defines the methods common to all win32 clipboard format
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converters.
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*/
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class IMSWindowsClipboardConverter : public IInterface
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{
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public:
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// accessors
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// return the clipboard format this object converts from/to
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virtual IClipboard::EFormat getFormat() const = 0;
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// return the atom representing the win32 clipboard format that
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// this object converts from/to
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virtual UINT getWin32Format() const = 0;
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// convert from the IClipboard format to the win32 clipboard format.
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// the input data must be in the IClipboard format returned by
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// getFormat(). the return data will be in the win32 clipboard
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// format returned by getWin32Format(), allocated by GlobalAlloc().
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virtual HANDLE fromIClipboard(const std::string &) const = 0;
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// convert from the win32 clipboard format to the IClipboard format
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// (i.e., the reverse of fromIClipboard()).
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virtual std::string toIClipboard(HANDLE data) const = 0;
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};
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