diff options
Diffstat (limited to 'winsup/cygwin/fhandler_clipboard.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_clipboard.cc | 282 |
1 files changed, 0 insertions, 282 deletions
diff --git a/winsup/cygwin/fhandler_clipboard.cc b/winsup/cygwin/fhandler_clipboard.cc deleted file mode 100644 index e5b6ebe5f..000000000 --- a/winsup/cygwin/fhandler_clipboard.cc +++ /dev/null @@ -1,282 +0,0 @@ -/* fhandler_dev_clipboard: code to access /dev/clipboard - - Copyright 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc - - Written by Charles Wilson (cwilson@ece.gatech.edu) - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#include "winsup.h" -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <windows.h> -#include <wingdi.h> -#include <winuser.h> -#include "cygerrno.h" -#include "security.h" -#include "path.h" -#include "fhandler.h" - -/* - * Robert Collins: - * FIXME: should we use GetClipboardSequenceNumber to tell if the clipboard has - * changed? How does /dev/clipboard operate under (say) linux? - */ - -static const NO_COPY char *CYGWIN_NATIVE = "CYGWIN_NATIVE_CLIPBOARD"; -/* this is MT safe because windows format id's are atomic */ -static int cygnativeformat; - -fhandler_dev_clipboard::fhandler_dev_clipboard () - : fhandler_base (), pos (0), membuffer (NULL), msize (0), - eof (true) -{ - /* FIXME: check for errors and loop until we can open the clipboard */ - OpenClipboard (NULL); - cygnativeformat = RegisterClipboardFormat (CYGWIN_NATIVE); - CloseClipboard (); -} - -/* - * Special clipboard dup to duplicate input and output - * handles. - */ - -int -fhandler_dev_clipboard::dup (fhandler_base * child) -{ - fhandler_dev_clipboard *fhc = (fhandler_dev_clipboard *) child; - - if (!fhc->open (get_flags (), 0)) - system_printf ("error opening clipboard, %E"); - - fhc->membuffer = membuffer; - fhc->pos = pos; - fhc->msize = msize; - - return 0; -} - -int -fhandler_dev_clipboard::open (int flags, mode_t) -{ - set_flags (flags | O_TEXT); - eof = false; - pos = 0; - if (membuffer) - free (membuffer); - membuffer = NULL; - if (!cygnativeformat) - cygnativeformat = RegisterClipboardFormat (CYGWIN_NATIVE); - nohandle (true); - set_open_status (); - return 1; -} - -static int -set_clipboard (const void *buf, size_t len) -{ - HGLOBAL hmem; - unsigned char *clipbuf; - /* Native CYGWIN format */ - OpenClipboard (0); - hmem = GlobalAlloc (GMEM_MOVEABLE, len + sizeof (size_t)); - if (!hmem) - { - system_printf ("Couldn't allocate global buffer for write"); - return -1; - } - clipbuf = (unsigned char *) GlobalLock (hmem); - memcpy (clipbuf + sizeof (size_t), buf, len); - *(size_t *) (clipbuf) = len; - GlobalUnlock (hmem); - EmptyClipboard (); - if (!cygnativeformat) - cygnativeformat = RegisterClipboardFormat (CYGWIN_NATIVE); - if (!SetClipboardData (cygnativeformat, hmem)) - { - system_printf - ("Couldn't write native format to the clipboard %04x %x", - cygnativeformat, hmem); -/* FIXME: return an appriate error code &| set_errno(); */ - return -1; - } - CloseClipboard (); - if (GlobalFree (hmem)) - { - system_printf - ("Couldn't free global buffer after write to the clipboard"); -/* FIXME: return an appriate error code &| set_errno(); */ - return 0; - } - - /* CF_TEXT/CF_OEMTEXT for copying to wordpad and the like */ - - OpenClipboard (0); - hmem = GlobalAlloc (GMEM_MOVEABLE, len + 2); - if (!hmem) - { - system_printf ("Couldn't allocate global buffer for write"); - return -1; - } - clipbuf = (unsigned char *) GlobalLock (hmem); - memcpy (clipbuf, buf, len); - *(clipbuf + len) = '\0'; - *(clipbuf + len + 1) = '\0'; - GlobalUnlock (hmem); - if (!SetClipboardData - ((current_codepage == ansi_cp ? CF_TEXT : CF_OEMTEXT), hmem)) - { - system_printf ("Couldn't write to the clipboard"); -/* FIXME: return an appriate error code &| set_errno(); */ - return -1; - } - CloseClipboard (); - if (GlobalFree (hmem)) - { - system_printf - ("Couldn't free global buffer after write to the clipboard"); -/* FIXME: return an appriate error code &| set_errno(); */ - } - return 0; -} - -/* FIXME: arbitrary seeking is not handled */ -int -fhandler_dev_clipboard::write (const void *buf, size_t len) -{ - if (!eof) - { - /* write to our membuffer */ - size_t cursize = msize; - void *tempbuffer = realloc (membuffer, cursize + len); - if (!tempbuffer) - { - system_printf ("Couldn't realloc() clipboard buffer for write"); - return -1; - } - membuffer = tempbuffer; - msize = cursize + len; - memcpy ((unsigned char *) membuffer + cursize, buf, len); - - /* now pass to windows */ - if (set_clipboard (membuffer, msize)) - { - /* FIXME: membuffer is now out of sync with pos, but msize is used above */ - set_errno (ENOSPC); - return -1; - } - - pos = msize; - - eof = false; - return len; - } - else - { - /* FIXME: return 0 bytes written, file not open */ - return 0; - } -} - -void __stdcall -fhandler_dev_clipboard::read (void *ptr, size_t& len) -{ - HGLOBAL hglb; - size_t ret; - UINT formatlist[2]; - int format; - if (eof) - len = 0; - else - { - formatlist[0] = cygnativeformat; - formatlist[1] = current_codepage == ansi_cp ? CF_TEXT : CF_OEMTEXT; - OpenClipboard (0); - if ((format = GetPriorityClipboardFormat (formatlist, 2)) <= 0) - { - CloseClipboard (); -#if 0 - system_printf ("a non-accepted format! %d", format); -#endif - len = 0; - } - else - { - hglb = GetClipboardData (format); - if (format == cygnativeformat) - { - unsigned char *buf = (unsigned char *) GlobalLock (hglb); - size_t buflen = (*(size_t *) buf); - ret = ((len > (buflen - pos)) ? (buflen - pos) : len); - memcpy (ptr, buf + sizeof (size_t)+ pos , ret); - pos += ret; - if (pos + len - ret >= buflen) - eof = true; - GlobalUnlock (hglb); - } - else - { - LPSTR lpstr; - lpstr = (LPSTR) GlobalLock (hglb); - - ret = ((len > (strlen (lpstr) - pos)) ? (strlen (lpstr) - pos) - : len); - - memcpy (ptr, lpstr + pos, ret); - //ret = snprintf((char *) ptr, len, "%s", lpstr);//+pos); - pos += ret; - if (pos + len - ret >= strlen (lpstr)) - eof = true; - GlobalUnlock (hglb); - } - CloseClipboard (); - len = ret; - } - } -} - -_off64_t -fhandler_dev_clipboard::lseek (_off64_t offset, int whence) -{ - /* On reads we check this at read time, not seek time. - * On writes we use this to decide how to write - empty and write, or open, copy, empty - * and write - */ - pos = offset; - /* treat seek like rewind */ - if (membuffer) - free (membuffer); - msize = 0; - return 0; -} - -int -fhandler_dev_clipboard::close () -{ - if (!hExeced) - { - eof = true; - pos = 0; - if (membuffer) - { - free (membuffer); - membuffer = NULL; - } - msize = 0; - } - return 0; -} - -void -fhandler_dev_clipboard::fixup_after_exec () -{ - eof = false; - pos = msize = 0; - membuffer = NULL; -} |