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

/*==LICENSE==*

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*==LICENSE==*/

#include "plClipboard.h"
#include "hsWindows.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
}

plString plClipboard::GetClipboardText()
{
    if (!IsTextInClipboard()) 
        return plString::Null;

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

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

    plString result = plString::FromWchar(clipboardDataPtr, size);

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

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

void plClipboard::SetClipboardText(const plString& text)
{
    if (text.IsEmpty())
        return;
#ifdef HS_BUILD_FOR_WIN32
    plStringBuffer<wchar_t> buf = text.ToWchar();
    size_t len = buf.GetSize();

    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);
    memcpy(target, buf.GetData(), (len + 1) * sizeof(wchar_t));
    target[len] = '\0';
    ::GlobalUnlock(copy); 

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