mirror of
https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-17 13:53:57 -07:00
123 lines
3.4 KiB
C++
123 lines
3.4 KiB
C++
/* Copyright (c) 2010 Wildfire Games
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include "precompiled.h"
|
|
#include "lib/sysdep/clipboard.h"
|
|
|
|
#include "lib/sysdep/os/win/win.h"
|
|
#include "lib/sysdep/os/win/wutil.h"
|
|
|
|
|
|
// caller is responsible for freeing hMem.
|
|
static Status SetClipboardText(const wchar_t* text, HGLOBAL& hMem)
|
|
{
|
|
const size_t numChars = wcslen(text);
|
|
hMem = GlobalAlloc(GMEM_MOVEABLE|GMEM_ZEROINIT, (numChars + 1) * sizeof(wchar_t));
|
|
if(!hMem)
|
|
WARN_RETURN(ERR::NO_MEM);
|
|
|
|
wchar_t* lockedText = (wchar_t*)GlobalLock(hMem);
|
|
if(!lockedText)
|
|
WARN_RETURN(ERR::NO_MEM);
|
|
wcscpy_s(lockedText, numChars+1, text);
|
|
GlobalUnlock(hMem);
|
|
|
|
HANDLE hData = SetClipboardData(CF_UNICODETEXT, hMem);
|
|
if(!hData) // failed
|
|
WARN_RETURN(ERR::FAIL);
|
|
|
|
return INFO::OK;
|
|
}
|
|
|
|
|
|
// @return INFO::OK iff text has been assigned a pointer (which the
|
|
// caller must free via sys_clipboard_free) to the clipboard text.
|
|
static Status GetClipboardText(wchar_t*& text)
|
|
{
|
|
// NB: Windows NT/2000+ auto convert CF_UNICODETEXT <-> CF_TEXT.
|
|
|
|
if(!IsClipboardFormatAvailable(CF_UNICODETEXT))
|
|
return INFO::CANNOT_HANDLE;
|
|
|
|
HGLOBAL hMem = GetClipboardData(CF_UNICODETEXT);
|
|
if(!hMem)
|
|
WARN_RETURN(ERR::FAIL);
|
|
|
|
const wchar_t* lockedText = (const wchar_t*)GlobalLock(hMem);
|
|
if(!lockedText)
|
|
WARN_RETURN(ERR::NO_MEM);
|
|
|
|
const size_t size = GlobalSize(hMem);
|
|
text = (wchar_t*)malloc(size);
|
|
if(!text)
|
|
WARN_RETURN(ERR::NO_MEM);
|
|
wcscpy_s(text, size/sizeof(wchar_t), lockedText);
|
|
|
|
(void)GlobalUnlock(hMem);
|
|
|
|
return INFO::OK;
|
|
}
|
|
|
|
|
|
// OpenClipboard parameter.
|
|
// NB: using wutil_AppWindow() causes GlobalLock to fail.
|
|
static const HWND hWndNewOwner = 0; // MSDN: associate with "current task"
|
|
|
|
Status sys_clipboard_set(const wchar_t* text)
|
|
{
|
|
if(!OpenClipboard(hWndNewOwner))
|
|
WARN_RETURN(ERR::FAIL);
|
|
|
|
WARN_IF_FALSE(EmptyClipboard());
|
|
|
|
// NB: to enable copy/pasting something other than text, add
|
|
// message handlers for WM_RENDERFORMAT and WM_RENDERALLFORMATS.
|
|
HGLOBAL hMem;
|
|
Status ret = SetClipboardText(text, hMem);
|
|
|
|
WARN_IF_FALSE(CloseClipboard()); // must happen before GlobalFree
|
|
|
|
ENSURE(GlobalFree(hMem) == 0); // (0 indicates success)
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
wchar_t* sys_clipboard_get()
|
|
{
|
|
if(!OpenClipboard(hWndNewOwner))
|
|
return 0;
|
|
|
|
wchar_t* text;
|
|
Status ret = GetClipboardText(text);
|
|
|
|
WARN_IF_FALSE(CloseClipboard());
|
|
|
|
return (ret == INFO::OK)? text : 0;
|
|
}
|
|
|
|
|
|
Status sys_clipboard_free(wchar_t* text)
|
|
{
|
|
free(text);
|
|
return INFO::OK;
|
|
}
|