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/* Public Domain Curses */
#include "pdcx11.h"
RCSID("$Id: pdcclip.c,v 1.35 2008/07/14 04:24:52 wmcbrine Exp $")
#include <stdlib.h>
/*man-start**************************************************************
Name: clipboard
Synopsis:
int PDC_getclipboard(char **contents, long *length);
int PDC_setclipboard(const char *contents, long length);
int PDC_freeclipboard(char *contents);
int PDC_clearclipboard(void);
Description:
PDC_getclipboard() gets the textual contents of the system's
clipboard. This function returns the contents of the clipboard
in the contents argument. It is the responsibilitiy of the
caller to free the memory returned, via PDC_freeclipboard().
The length of the clipboard contents is returned in the length
argument.
PDC_setclipboard copies the supplied text into the system's
clipboard, emptying the clipboard prior to the copy.
PDC_clearclipboard() clears the internal clipboard.
Return Values:
indicator of success/failure of call.
PDC_CLIP_SUCCESS the call was successful
PDC_CLIP_MEMORY_ERROR unable to allocate sufficient memory for
the clipboard contents
PDC_CLIP_EMPTY the clipboard contains no text
PDC_CLIP_ACCESS_ERROR no clipboard support
Portability X/Open BSD SYS V
PDC_getclipboard - - -
PDC_setclipboard - - -
PDC_freeclipboard - - -
PDC_clearclipboard - - -
**man-end****************************************************************/
int PDC_getclipboard(char **contents, long *length)
{
#ifdef PDC_WIDE
wchar_t *wcontents;
#endif
int result = 0;
int len;
PDC_LOG(("PDC_getclipboard() - called\n"));
XCursesInstructAndWait(CURSES_GET_SELECTION);
if (XC_read_socket(xc_display_sock, &result, sizeof(int)) < 0)
XCursesExitCursesProcess(5, "exiting from PDC_getclipboard");
if (result == PDC_CLIP_SUCCESS)
{
if (XC_read_socket(xc_display_sock, &len, sizeof(int)) < 0)
XCursesExitCursesProcess(5, "exiting from PDC_getclipboard");
#ifdef PDC_WIDE
wcontents = malloc((len + 1) * sizeof(wchar_t));
*contents = malloc(len * 3 + 1);
if (!wcontents || !*contents)
#else
*contents = malloc(len + 1);
if (!*contents)
#endif
XCursesExitCursesProcess(6, "exiting from PDC_getclipboard - "
"synchronization error");
if (len)
{
if (XC_read_socket(xc_display_sock,
#ifdef PDC_WIDE
wcontents, len * sizeof(wchar_t)) < 0)
#else
*contents, len) < 0)
#endif
XCursesExitCursesProcess(5, "exiting from PDC_getclipboard");
}
#ifdef PDC_WIDE
wcontents[len] = 0;
len = PDC_wcstombs(*contents, wcontents, len * 3);
free(wcontents);
#endif
(*contents)[len] = '\0';
*length = len;
}
return result;
}
int PDC_setclipboard(const char *contents, long length)
{
#ifdef PDC_WIDE
wchar_t *wcontents;
#endif
int rc;
PDC_LOG(("PDC_setclipboard() - called\n"));
#ifdef PDC_WIDE
wcontents = malloc((length + 1) * sizeof(wchar_t));
if (!wcontents)
return PDC_CLIP_MEMORY_ERROR;
length = PDC_mbstowcs(wcontents, contents, length);
#endif
XCursesInstruct(CURSES_SET_SELECTION);
/* Write, then wait for X to do its stuff; expect return code. */
if (XC_write_socket(xc_display_sock, &length, sizeof(long)) >= 0)
{
if (XC_write_socket(xc_display_sock,
#ifdef PDC_WIDE
wcontents, length * sizeof(wchar_t)) >= 0)
{
free(wcontents);
#else
contents, length) >= 0)
{
#endif
if (XC_read_socket(xc_display_sock, &rc, sizeof(int)) >= 0)
return rc;
}
}
XCursesExitCursesProcess(5, "exiting from PDC_setclipboard");
return PDC_CLIP_ACCESS_ERROR; /* not reached */
}
int PDC_freeclipboard(char *contents)
{
PDC_LOG(("PDC_freeclipboard() - called\n"));
free(contents);
return PDC_CLIP_SUCCESS;
}
int PDC_clearclipboard(void)
{
int rc;
long len = 0;
PDC_LOG(("PDC_clearclipboard() - called\n"));
XCursesInstruct(CURSES_CLEAR_SELECTION);
/* Write, then wait for X to do its stuff; expect return code. */
if (XC_write_socket(xc_display_sock, &len, sizeof(long)) >= 0)
if (XC_read_socket(xc_display_sock, &rc, sizeof(int)) >= 0)
return rc;
XCursesExitCursesProcess(5, "exiting from PDC_clearclipboard");
return PDC_CLIP_ACCESS_ERROR; /* not reached */
}
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