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