CWE-ou-minkata/Sources/Plasma/PubUtilLib/plClipboard/plClipboard.cpp

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

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Additional permissions under GNU GPL version 3 section 7

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*==LICENSE==*/

#include "HeadSpin.h"
#include "plClipboard.h"

plClipboard& plClipboard::GetInstance()
{
	static plClipboard theInstance;
	return theInstance;
}

bool plClipboard::IsTextInClipboard() 
{
#ifdef HS_BUILD_FOR_WIN32
	return ::IsClipboardFormatAvailable(CF_UNICODETEXT);
#else
	return false;
#endif
}

wchar_t* plClipboard::GetClipboardText()
{
	if (!IsTextInClipboard()) 
		return nil;

#ifdef HS_BUILD_FOR_WIN32
	if (!::OpenClipboard(NULL))
		return nil;

	HANDLE clipboardData = ::GetClipboardData(CF_UNICODETEXT);
	size_t size = ::GlobalSize(clipboardData) / sizeof(wchar_t);
	wchar_t* clipboardDataPtr = (wchar_t*)::GlobalLock(clipboardData);

	wchar_t* result = new wchar_t[size];
	wcsncpy(result, clipboardDataPtr, size);

	::GlobalUnlock(clipboardData);	
	::CloseClipboard();

	return result;
#else
	return plString::Null;
#endif	
}

void plClipboard::SetClipboardText(const wchar_t* text)
{
	if (text == nil)
		return;
#ifdef HS_BUILD_FOR_WIN32
	size_t len = wcslen(text);

	if (len == 0) 
		return;

	HGLOBAL copy = ::GlobalAlloc(GMEM_MOVEABLE, (len + 1) * sizeof(wchar_t));
	if (copy == NULL) 
		return;

	if (!::OpenClipboard(NULL))
		return;

	::EmptyClipboard();

	wchar_t* target = (wchar_t*)::GlobalLock(copy);
	wcsncpy(target, text, len + 1);
	::GlobalUnlock(copy); 

	::SetClipboardData(CF_UNICODETEXT, copy);
	::CloseClipboard();
#endif
}