Sweden-Number/misc/clipboard.c

605 lines
16 KiB
C

/*
* 'Wine' Clipboard function handling
*
* Copyright 1994 Martin Ayotte
* 1996 Alex Korobka
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include "windows.h"
#include "win.h"
#include "message.h"
#include "clipboard.h"
#include "xmalloc.h"
#include "stddebug.h"
#include "debug.h"
#define CF_REGFORMATBASE 0xC000
typedef struct tagCLIPFORMAT {
WORD wFormatID;
WORD wRefCount;
WORD wDataPresent;
LPSTR Name;
HANDLE hData;
DWORD BufSize;
struct tagCLIPFORMAT *PrevFormat;
struct tagCLIPFORMAT *NextFormat;
} CLIPFORMAT, *LPCLIPFORMAT;
/* *************************************************************************
* internal variables
*/
static HWND hWndClipOwner = 0; /* current clipboard owner */
static HWND hWndClipWindow = 0; /* window that opened clipboard */
static HWND hWndViewer = 0; /* start of viewers chain */
static BOOL bClipChanged = FALSE;
static WORD LastRegFormat = CF_REGFORMATBASE;
static Bool wait_for_selection = False;
static Bool wineOwnsSelection = False;
static CLIPFORMAT ClipFormats[16] = {
{ CF_TEXT, 1, 0, "Text", (HANDLE)NULL, 0, NULL, &ClipFormats[1] },
{ CF_BITMAP, 1, 0, "Bitmap", (HANDLE)NULL, 0, &ClipFormats[0], &ClipFormats[2] },
{ CF_METAFILEPICT, 1, 0, "MetaFile Picture", (HANDLE)NULL, 0, &ClipFormats[1], &ClipFormats[3] },
{ CF_SYLK, 1, 0, "Sylk", (HANDLE)NULL, 0, &ClipFormats[2], &ClipFormats[4] },
{ CF_DIF, 1, 0, "DIF", (HANDLE)NULL, 0, &ClipFormats[3], &ClipFormats[5] },
{ CF_TIFF, 1, 0, "TIFF", (HANDLE)NULL, 0, &ClipFormats[4], &ClipFormats[6] },
{ CF_OEMTEXT, 1, 0, "OEM Text", (HANDLE)NULL, 0, &ClipFormats[5], &ClipFormats[7] },
{ CF_DIB, 1, 0, "DIB", (HANDLE)NULL, 0, &ClipFormats[6], &ClipFormats[8] },
{ CF_PALETTE, 1, 0, "Palette", (HANDLE)NULL, 0, &ClipFormats[7], &ClipFormats[9] },
{ CF_PENDATA, 1, 0, "PenData", (HANDLE)NULL, 0, &ClipFormats[8], &ClipFormats[10] },
{ CF_RIFF, 1, 0, "RIFF", (HANDLE)NULL, 0, &ClipFormats[9], &ClipFormats[11] },
{ CF_WAVE, 1, 0, "Wave", (HANDLE)NULL, 0, &ClipFormats[10], &ClipFormats[12] },
{ CF_OWNERDISPLAY, 1, 0, "Owner Display", (HANDLE)NULL, 0, &ClipFormats[11], &ClipFormats[13] },
{ CF_DSPTEXT, 1, 0, "DSPText", (HANDLE)NULL, 0, &ClipFormats[12], &ClipFormats[14] },
{ CF_DSPMETAFILEPICT, 1, 0, "DSPMetaFile Picture", (HANDLE)NULL, 0, &ClipFormats[13], &ClipFormats[15] },
{ CF_DSPBITMAP, 1, 0, "DSPBitmap", (HANDLE)NULL, 0, &ClipFormats[14], NULL }
};
/**************************************************************************
* CLIPBOARD_DisOwn
*/
void CLIPBOARD_DisOwn(HWND hWnd)
{
LPCLIPFORMAT lpFormat = ClipFormats;
if( hWnd != hWndClipOwner || !hWndClipOwner ) return;
SendMessage16(hWndClipOwner,WM_RENDERALLFORMATS,0,0L);
/* check if all formats were rendered */
while(lpFormat)
{
if( lpFormat->wDataPresent && !lpFormat->hData )
{
dprintf_clipboard(stddeb,"\tdata missing for clipboard format %i\n", lpFormat->wFormatID);
lpFormat->wDataPresent = 0;
}
lpFormat = lpFormat->NextFormat;
}
hWndClipOwner = 0;
}
/**************************************************************************
* CLIPBOARD_DeleteRecord
*/
void CLIPBOARD_DeleteRecord(LPCLIPFORMAT lpFormat)
{
if( lpFormat->wFormatID >= CF_GDIOBJFIRST &&
lpFormat->wFormatID <= CF_GDIOBJLAST )
DeleteObject(lpFormat->hData);
else if( lpFormat->hData )
GlobalFree16(lpFormat->hData);
lpFormat->wDataPresent = 0;
lpFormat->hData = 0;
bClipChanged = TRUE;
}
/**************************************************************************
* CLIPBOARD_RequestXSelection
*/
BOOL CLIPBOARD_RequestXSelection()
{
HWND hWnd = hWndClipWindow;
if( !hWnd ) hWnd = GetActiveWindow();
wait_for_selection=True;
dprintf_clipboard(stddeb,"Requesting selection\n");
XConvertSelection(display,XA_PRIMARY,XA_STRING,
XInternAtom(display,"PRIMARY_TEXT",False),
WIN_GetXWindow(hWnd),CurrentTime);
/* TODO: need time-out for broken clients */
while(wait_for_selection) EVENT_WaitXEvent( TRUE );
return (BOOL)ClipFormats[0].wDataPresent;
}
/**************************************************************************
* CLIPBOARD_IsPresent
*/
BOOL CLIPBOARD_IsPresent(WORD wFormat)
{
LPCLIPFORMAT lpFormat = ClipFormats;
while(TRUE) {
if (lpFormat == NULL) return FALSE;
if (lpFormat->wFormatID == wFormat) break;
lpFormat = lpFormat->NextFormat;
}
return (lpFormat->wDataPresent);
}
/**************************************************************************
* OpenClipboard [USER.137]
*/
BOOL OpenClipboard(HWND hWnd)
{
BOOL bRet = FALSE;
dprintf_clipboard(stddeb,"OpenClipboard(%04x) = ", hWnd);
if (!hWndClipWindow)
{
hWndClipWindow = hWnd;
bRet = TRUE;
}
bClipChanged = FALSE;
dprintf_clipboard(stddeb,"%i\n", bRet);
return bRet;
}
/**************************************************************************
* CloseClipboard [USER.138]
*/
BOOL CloseClipboard()
{
dprintf_clipboard(stddeb,"CloseClipboard(); !\n");
if (hWndClipWindow == 0) return FALSE;
hWndClipWindow = 0;
if (bClipChanged && hWndViewer) SendMessage16(hWndViewer,WM_DRAWCLIPBOARD,0,0L);
return TRUE;
}
/**************************************************************************
* EmptyClipboard [USER.139]
*/
BOOL EmptyClipboard()
{
LPCLIPFORMAT lpFormat = ClipFormats;
dprintf_clipboard(stddeb,"EmptyClipboard()\n");
if (hWndClipWindow == 0) return FALSE;
/* destroy private objects */
if (hWndClipOwner)
SendMessage16(hWndClipOwner,WM_DESTROYCLIPBOARD,0,0L);
while(lpFormat)
{
if ( lpFormat->wDataPresent )
CLIPBOARD_DeleteRecord( lpFormat );
lpFormat = lpFormat->NextFormat;
}
hWndClipOwner = hWndClipWindow;
if(wineOwnsSelection){
dprintf_clipboard(stddeb,"Losing selection\n");
wineOwnsSelection=False;
XSetSelectionOwner(display,XA_PRIMARY,None,CurrentTime);
}
return TRUE;
}
/**************************************************************************
* GetClipboardOwner [USER.140]
*/
HWND GetClipboardOwner()
{
dprintf_clipboard(stddeb,
"GetClipboardOwner() = %04x !\n", hWndClipOwner);
return hWndClipOwner;
}
/**************************************************************************
* SetClipboardData [USER.141]
*/
HANDLE SetClipboardData(WORD wFormat, HANDLE hData)
{
LPCLIPFORMAT lpFormat = ClipFormats;
Window owner;
dprintf_clipboard(stddeb,
"SetClipboardDate(%04X, %04x) !\n", wFormat, hData);
while(TRUE)
{
if (lpFormat == NULL) return 0;
if (lpFormat->wFormatID == wFormat) break;
lpFormat = lpFormat->NextFormat;
}
/* Acquire X selection:
*
* doc says we shouldn't use CurrentTime
* should we become owner of CLIPBOARD as well?
*/
owner = WIN_GetXWindow(hWndClipWindow);
XSetSelectionOwner(display,XA_PRIMARY,owner,CurrentTime);
if( XGetSelectionOwner(display,XA_PRIMARY) == owner )
{
wineOwnsSelection = True;
dprintf_clipboard(stddeb,"Getting selection\n");
}
if ( lpFormat->wDataPresent )
CLIPBOARD_DeleteRecord(lpFormat);
bClipChanged = TRUE;
lpFormat->wDataPresent = TRUE;
lpFormat->hData = hData;
return lpFormat->hData;
}
/**************************************************************************
* GetClipboardData [USER.142]
*/
HANDLE GetClipboardData(WORD wFormat)
{
LPCLIPFORMAT lpFormat = ClipFormats;
dprintf_clipboard(stddeb,"GetClipboardData(%04X)\n", wFormat);
if (!hWndClipWindow) return 0;
/* if(wFormat == CF_TEXT && !wineOwnsSelection)
CLIPBOARD_RequestXSelection();
*/
while(TRUE) {
if (lpFormat == NULL) return 0;
if (lpFormat->wFormatID == wFormat) break;
lpFormat = lpFormat->NextFormat;
}
if( lpFormat->wDataPresent && !lpFormat->hData )
if( IsWindow(hWndClipOwner) )
SendMessage16(hWndClipOwner,WM_RENDERFORMAT,(WPARAM)lpFormat->wFormatID,0L);
else
dprintf_clipboard(stddeb,"\thWndClipOwner is lost\n");
return lpFormat->hData;
}
/**************************************************************************
* CountClipboardFormats [USER.143]
*/
INT CountClipboardFormats()
{
int FormatCount = 0;
LPCLIPFORMAT lpFormat = ClipFormats;
dprintf_clipboard(stddeb,"CountClipboardFormats()\n");
while(TRUE) {
if (lpFormat == NULL) break;
if (lpFormat->wDataPresent)
{
dprintf_clipboard(stddeb, "\tdata found for format %i\n", lpFormat->wFormatID);
FormatCount++;
}
lpFormat = lpFormat->NextFormat;
}
dprintf_clipboard(stddeb,"\ttotal %d\n", FormatCount);
return FormatCount;
}
/**************************************************************************
* EnumClipboardFormats [USER.144]
*/
UINT EnumClipboardFormats(UINT wFormat)
{
LPCLIPFORMAT lpFormat = ClipFormats;
dprintf_clipboard(stddeb,"EnumClipboardFormats(%04X)\n", wFormat);
if( (!wFormat || wFormat == CF_TEXT) && !wineOwnsSelection)
CLIPBOARD_RequestXSelection();
if (wFormat == 0) {
if (lpFormat->wDataPresent)
return lpFormat->wFormatID;
else
wFormat = lpFormat->wFormatID;
}
/* walk up to the specified format record */
while(TRUE) {
if (lpFormat == NULL) return 0;
if (lpFormat->wFormatID == wFormat) break;
lpFormat = lpFormat->NextFormat;
}
/* find next format with available data */
lpFormat = lpFormat->NextFormat;
while(TRUE) {
if (lpFormat == NULL) return 0;
if (lpFormat->wDataPresent ) break;
lpFormat = lpFormat->NextFormat;
}
dprintf_clipboard(stddeb, "\t got not empty - Id=%04X hData=%04x !\n",
lpFormat->wFormatID, lpFormat->hData);
return lpFormat->wFormatID;
}
/**************************************************************************
* RegisterClipboardFormat [USER.145]
*/
WORD RegisterClipboardFormat(LPCSTR FormatName)
{
LPCLIPFORMAT lpNewFormat;
LPCLIPFORMAT lpFormat = ClipFormats;
if (FormatName == NULL) return 0;
dprintf_clipboard(stddeb,"RegisterClipboardFormat('%s') !\n", FormatName);
/* walk format chain to see if it's already registered */
while(TRUE) {
if ( !strcmp(lpFormat->Name,FormatName) )
{
lpFormat->wRefCount++;
return lpFormat->wFormatID;
}
if ( lpFormat->NextFormat == NULL ) break;
lpFormat = lpFormat->NextFormat;
}
/* allocate storage for new format entry */
lpNewFormat = (LPCLIPFORMAT)xmalloc(sizeof(CLIPFORMAT));
lpFormat->NextFormat = lpNewFormat;
lpNewFormat->wFormatID = LastRegFormat;
lpNewFormat->wRefCount = 1;
lpNewFormat->Name = (LPSTR)xmalloc(strlen(FormatName) + 1);
strcpy(lpNewFormat->Name, FormatName);
lpNewFormat->wDataPresent = 0;
lpNewFormat->hData = 0;
lpNewFormat->BufSize = 0;
lpNewFormat->PrevFormat = lpFormat;
lpNewFormat->NextFormat = NULL;
return LastRegFormat++;
}
/**************************************************************************
* GetClipboardFormatName [USER.146]
*/
int GetClipboardFormatName(WORD wFormat, LPSTR retStr, short maxlen)
{
LPCLIPFORMAT lpFormat = ClipFormats;
dprintf_clipboard(stddeb,
"GetClipboardFormat(%04X, %p, %d) !\n", wFormat, retStr, maxlen);
while(TRUE) {
if (lpFormat == NULL) return 0;
if (lpFormat->wFormatID == wFormat) break;
lpFormat = lpFormat->NextFormat;
}
if (lpFormat->Name == NULL ||
lpFormat->wFormatID < CF_REGFORMATBASE) return 0;
dprintf_clipboard(stddeb,
"GetClipboardFormat // Name='%s' !\n", lpFormat->Name);
strncpy(retStr, lpFormat->Name, maxlen - 1);
retStr[maxlen] = 0;
return strlen(retStr);
}
/**************************************************************************
* SetClipboardViewer [USER.147]
*/
HWND SetClipboardViewer(HWND hWnd)
{
HWND hwndPrev = hWndViewer;
dprintf_clipboard(stddeb,"SetClipboardViewer(%04x)\n", hWnd);
hWndViewer = hWnd;
return hwndPrev;
}
/**************************************************************************
* GetClipboardViewer [USER.148]
*/
HWND GetClipboardViewer()
{
dprintf_clipboard(stddeb,"GetClipboardFormat() = %04x\n", hWndViewer);
return hWndViewer;
}
/**************************************************************************
* ChangeClipboardChain [USER.149]
*/
BOOL ChangeClipboardChain(HWND hWnd, HWND hWndNext)
{
BOOL bRet = 0;
dprintf_clipboard(stdnimp, "ChangeClipboardChain(%04x, %04x)\n", hWnd, hWndNext);
if( hWndViewer )
bRet = !SendMessage16( hWndViewer, WM_CHANGECBCHAIN, (WPARAM)hWnd, (LPARAM)hWndNext);
else
dprintf_clipboard(stddeb,"ChangeClipboardChain: hWndViewer is lost\n");
if( hWnd == hWndViewer ) hWndViewer = hWndNext;
return 0;
}
/**************************************************************************
* IsClipboardFormatAvailable [USER.193]
*/
BOOL IsClipboardFormatAvailable(WORD wFormat)
{
dprintf_clipboard(stddeb,"IsClipboardFormatAvailable(%04X) !\n", wFormat);
if(wFormat == CF_TEXT && !wineOwnsSelection)
CLIPBOARD_RequestXSelection();
return CLIPBOARD_IsPresent(wFormat);
}
/**************************************************************************
* GetOpenClipboardWindow [USER.248]
*/
HWND GetOpenClipboardWindow()
{
dprintf_clipboard(stddeb,
"GetOpenClipboardWindow() = %04x\n", hWndClipWindow);
return hWndClipWindow;
}
/**************************************************************************
* GetPriorityClipboardFormat [USER.402]
*/
int GetPriorityClipboardFormat(WORD *lpPriorityList, short nCount)
{
dprintf_clipboard(stdnimp,
"GetPriorityClipboardFormat(%p, %d) !\n", lpPriorityList, nCount);
return 0;
}
/**************************************************************************
* CLIPBOARD_ReadSelection
*
* The current selection owner has set prop at our window w
* Transfer the property contents into the Clipboard
*/
void CLIPBOARD_ReadSelection(Window w,Atom prop)
{
HANDLE hText;
LPCLIPFORMAT lpFormat = ClipFormats;
if(prop==None)
hText=0;
else
{
Atom atype=None;
int aformat;
unsigned long nitems,remain;
unsigned char *val=NULL;
dprintf_clipboard(stddeb,"Received prop %s\n",XGetAtomName(display,prop));
/* TODO: Properties longer than 64K */
if(XGetWindowProperty(display,w,prop,0,0x3FFF,True,XA_STRING,
&atype, &aformat, &nitems, &remain, &val)!=Success)
fprintf(stderr,"couldn't read property\n");
dprintf_clipboard(stddeb,"Type %s,Format %d,nitems %ld,value %s\n",
XGetAtomName(display,atype),aformat,nitems,val);
if(atype!=XA_STRING || aformat!=8){
fprintf(stderr,"Property not set\n");
hText=0;
} else {
dprintf_clipboard(stddeb,"Selection is %s\n",val);
hText=GlobalAlloc16(GMEM_MOVEABLE, nitems+1);
memcpy(GlobalLock16(hText),val,nitems+1);
GlobalUnlock16(hText);
}
XFree(val);
}
while(TRUE) {
if (lpFormat == NULL) return;
if (lpFormat->wFormatID == CF_TEXT) break;
lpFormat = lpFormat->NextFormat;
}
if (lpFormat->wDataPresent)
CLIPBOARD_DeleteRecord(lpFormat);
wait_for_selection=False;
lpFormat->wDataPresent = TRUE;
lpFormat->hData = hText;
dprintf_clipboard(stddeb,"Received selection\n");
}
/**************************************************************************
* CLIPBOARD_ReleaseSelection
*
* Wine lost the primary selection.
* Empty the clipboard, but don't set the current owner to None.
* Make sure current get/put attempts fail.
*/
void CLIPBOARD_ReleaseSelection(HWND hwnd)
{
wineOwnsSelection=False;
OpenClipboard(hwnd);
EmptyClipboard();
CloseClipboard();
}