/*
*Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.
*
*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 HAROLD L HUNT II 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.
*
*Except as contained in this notice, the name of Harold L Hunt II
*shall not be used in advertising or otherwise to promote the sale, use
*or other dealings in this Software without prior written authorization
*from Harold L Hunt II.
*
* Authors: Harold L Hunt II
*/
#ifdef HAVE_XWIN_CONFIG_H
#include <xwin-config.h>
#endif
#include "winclipboard.h"
/*
* References to external symbols
*/
extern Bool g_fUnicodeSupport;
/*
* Process any pending X events
*/
int
winClipboardFlushXEvents (HWND hwnd,
int iWindow,
Display *pDisplay,
Bool fUseUnicode)
{
Atom atomLocalProperty = XInternAtom (pDisplay,
WIN_LOCAL_PROPERTY,
False);
Atom atomUTF8String = XInternAtom (pDisplay,
"UTF8_STRING",
False);
Atom atomCompoundText = XInternAtom (pDisplay,
"COMPOUND_TEXT",
False);
Atom atomTargets = XInternAtom (pDisplay,
"TARGETS",
False);
/* Process all pending events */
while (XPending (pDisplay))
{
XTextProperty xtpText = {0};
XEvent event;
XSelectionEvent eventSelection;
unsigned long ulReturnBytesLeft;
unsigned char *pszReturnData = NULL;
char *pszGlobalData = NULL;
int iReturn;
HGLOBAL hGlobal = NULL;
XICCEncodingStyle xiccesStyle;
int iConvertDataLen = 0;
char *pszConvertData = NULL;
char *pszTextList[2] = {NULL};
int iCount;
char **ppszTextList = NULL;
wchar_t *pwszUnicodeStr = NULL;
int iUnicodeLen = 0;
int iReturnDataLen = 0;
int i;
Bool fAbort = FALSE;
Bool fCloseClipboard = FALSE;
Bool fSetClipboardData = TRUE;
/* Get the next event - will not block because one is ready */
XNextEvent (pDisplay, &event);
/* Branch on the event type */
switch (event.type)
{
/*
* SelectionRequest
*/
case SelectionRequest:
#if 0
{
char *pszAtomName = NULL;
ErrorF ("SelectionRequest - target %d\n",
event.xselectionrequest.target);
pszAtomName = XGetAtomName (pDisplay,
event.xselectionrequest.target);
ErrorF ("SelectionRequest - Target atom name %s\n", pszAtomName);
XFree (pszAtomName);
pszAtomName = NULL;
}
#endif
/* Abort if invalid target type */
if (event.xselectionrequest.target != XA_STRING
&& event.xselectionrequest.target != atomUTF8String
&& event.xselectionrequest.target != atomCompoundText
&& event.xselectionrequest.target != atomTargets)
{
/* Abort */
fAbort = TRUE;
goto winClipboardFlushXEvents_SelectionRequest_Done;
}
/* Handle targets type of request */
if (event.xselectionrequest.target == atomTargets)
{
Atom atomTargetArr[] = {atomTargets,
atomCompoundText,
atomUTF8String,
XA_STRING};
/* Try to change the property */
iReturn = XChangeProperty (pDisplay,
event.xselectionrequest.requestor,
event.xselectionrequest.property,
XA_ATOM,
32,
PropModeReplace,
(unsigned char *) atomTargetArr,
(sizeof (atomTargetArr)
/ sizeof (atomTargetArr[0])));
if (iReturn == BadAlloc
|| iReturn == BadAtom
|| iReturn == BadMatch
|| iReturn == BadValue
|| iReturn == BadWindow)
{
ErrorF ("winClipboardFlushXEvents - SelectionRequest - "
"XChangeProperty failed: %d\n",
iReturn);
}
/* Setup selection notify xevent */
eventSelection.type = SelectionNotify;
eventSelection.send_event = True;
eventSelection.display = pDisplay;
eventSelection.requestor = event.xselectionrequest.requestor;
eventSelection.selection = event.xselectionrequest.selection;
eventSelection.target = event.xselectionrequest.target;
eventSelection.property = event.xselectionrequest.property;
eventSelection.time = event.xselectionrequest.time;
/*
* Notify the requesting window that
* the operation has completed
*/
iReturn = XSendEvent (pDisplay,
eventSelection.requestor,
False,
0L,
(XEvent *) &eventSelection);
if (iReturn == BadValue || iReturn == BadWindow)
{
ErrorF ("winClipboardFlushXEvents - SelectionRequest - "
"XSendEvent () failed\n");
}
break;
}
/* Check that clipboard format is available */
if (fUseUnicode
&& !IsClipboardFormatAvailable (CF_UNICODETEXT))
{
ErrorF ("winClipboardFlushXEvents - CF_UNICODETEXT is not "
"available from Win32 clipboard. Aborting.\n");
/* Abort */
fAbort = TRUE;
goto winClipboardFlushXEvents_SelectionRequest_Done;
}
else if (!fUseUnicode
&& !IsClipboardFormatAvailable (CF_TEXT))
{
ErrorF ("winClipboardFlushXEvents - CF_TEXT is not "
"available from Win32 clipboard. Aborting.\n");
/* Abort */
fAbort = TRUE;
goto winClipboardFlushXEvents_SelectionRequest_Done;
}
/* Close clipboard if we have it open already */
if (GetOpenClipboardWindow () == hwnd)
{
CloseClipboard ();
}
/* Access the clipboard */
if (!OpenClipboard (hwnd))
{
ErrorF ("winClipboardFlushXEvents - SelectionRequest - "
"OpenClipboard () failed: %08x\n",
GetLastError ());
/* Abort */
fAbort = TRUE;
goto winClipboardFlushXEvents_SelectionRequest_Done;
}
/* Indicate that clipboard was opened */
fCloseClipboard = TRUE;
/* Setup the string style */
if (event.xselectionrequest.target == XA_STRING)
xiccesStyle = XStringStyle;
#ifdef X_HAVE_UTF8_STRING
else if (event.xselectionrequest.target == atomUTF8String)
xiccesStyle = XUTF8StringStyle;
#endif
else if (event.xselectionrequest.target == atomCompoundText)
xiccesStyle = XCompoundTextStyle;
else
xiccesStyle = XStringStyle;
/*
* FIXME: Can't pass CF_UNICODETEXT on Windows 95/98/Me
*/
/* Get a pointer to the clipboard text, in desired format */
if (fUseUnicode)
{
/* Retrieve clipboard data */
hGlobal = GetClipboardData (CF_UNICODETEXT);
}
else
{
/* Retrieve clipboard data */
hGlobal = GetClipboardData (CF_TEXT);
}
if (!hGlobal)
{
ErrorF ("winClipboardFlushXEvents - SelectionRequest - "
"GetClipboardData () failed: %08x\n",
GetLastError ());
/* Abort */
fAbort = TRUE;
goto winClipboardFlushXEvents_SelectionRequest_Done;
}
pszGlobalData = (char *) GlobalLock (hGlobal);
/* Convert the Unicode string to UTF8 (MBCS) */
if (fUseUnicode)
{
iConvertDataLen = WideCharToMultiByte (CP_UTF8,
0,
(LPCWSTR)pszGlobalData,
-1,
NULL,
0,
NULL,
NULL);
/* NOTE: iConvertDataLen includes space for null terminator */
pszConvertData = (char *) malloc (iConvertDataLen);
WideCharToMultiByte (CP_UTF8,
0,
(LPCWSTR)pszGlobalData,
-1,
pszConvertData,
iConvertDataLen,
NULL,
NULL);
}
else
{
pszConvertData = strdup (pszGlobalData);
iConvertDataLen = strlen (pszConvertData) + 1;
}
/* Convert DOS string to UNIX string */
winClipboardDOStoUNIX (pszConvertData, strlen (pszConvertData));
/* Setup our text list */
pszTextList[0] = pszConvertData;
pszTextList[1] = NULL;
/* Initialize the text property */
xtpText.value = NULL;
/* Create the text property from the text list */
if (fUseUnicode)
{
#ifdef X_HAVE_UTF8_STRING
iReturn = Xutf8TextListToTextProperty (pDisplay,
pszTextList,
1,
xiccesStyle,
&xtpText);
#endif
}
else
{
iReturn = XmbTextListToTextProperty (pDisplay,
pszTextList,
1,
xiccesStyle,
&xtpText);
}
if (iReturn == XNoMemory || iReturn == XLocaleNotSupported)
{
ErrorF ("winClipboardFlushXEvents - SelectionRequest - "
"X*TextListToTextProperty failed: %d\n",
iReturn);
/* Abort */
fAbort = TRUE;
goto winClipboardFlushXEvents_SelectionRequest_Done;
}
/* Free the converted string */
free (pszConvertData);
pszConvertData = NULL;
/* Copy the clipboard text to the requesting window */
iReturn = XChangeProperty (pDisplay,
event.xselectionrequest.requestor,
event.xselectionrequest.property,
event.xselectionrequest.target,
8,
PropModeReplace,
xtpText.value,
xtpText.nitems);
if (iReturn == BadAlloc || iReturn == BadAtom
|| iReturn == BadMatch || iReturn == BadValue
|| iReturn == BadWindow)
{
ErrorF ("winClipboardFlushXEvents - SelectionRequest - "
"XChangeProperty failed: %d\n",
iReturn);
/* Abort */
fAbort = TRUE;
goto winClipboardFlushXEvents_SelectionRequest_Done;
}
/* Release the clipboard data */
GlobalUnlock (hGlobal);
pszGlobalData = NULL;
/* Clean up */
XFree (xtpText.value);
xtpText.value = NULL;
/* Setup selection notify event */
eventSelection.type = SelectionNotify;
eventSelection.send_event = True;
eventSelection.display = pDisplay;
eventSelection.requestor = event.xselectionrequest.requestor;
eventSelection.selection = event.xselectionrequest.selection;
eventSelection.target = event.xselectionrequest.target;
eventSelection.property = event.xselectionrequest.property;
eventSelection.time = event.xselectionrequest.time;
/* Notify the requesting window that the operation has completed */
iReturn = XSendEvent (pDisplay,
eventSelection.requestor,
False,
0L,
(XEvent *) &eventSelection);
if (iReturn == BadValue || iReturn == BadWindow)
{
ErrorF ("winClipboardFlushXEvents - SelectionRequest - "
"XSendEvent () failed\n");
/* Abort */
fAbort = TRUE;
goto winClipboardFlushXEvents_SelectionRequest_Done;
}
winClipboardFlushXEvents_SelectionRequest_Done:
/* Free allocated resources */
if (xtpText.value)
XFree (xtpText.value);
if (pszConvertData)
free (pszConvertData);
if (hGlobal && pszGlobalData)
GlobalUnlock (hGlobal);
/*
* Send a SelectionNotify event to the requesting
* client when we abort.
*/
if (fAbort)
{
/* Setup selection notify event */
eventSelection.type = SelectionNotify;
eventSelection.send_event = True;
eventSelection.display = pDisplay;
eventSelection.requestor = event.xselectionrequest.requestor;
eventSelection.selection = event.xselectionrequest.selection;
eventSelection.target = event.xselectionrequest.target;
eventSelection.property = None;
eventSelection.time = event.xselectionrequest.time;
/* Notify the requesting window that the operation is complete */
iReturn = XSendEvent (pDisplay,
eventSelection.requestor,
False,
0L,
(XEvent *) &eventSelection);
if (iReturn == BadValue || iReturn == BadWindow)
{
/*
* Should not be a problem if XSendEvent fails because
* the client may simply have exited.
*/
ErrorF ("winClipboardFlushXEvents - SelectionRequest - "
"XSendEvent () failed for abort event.\n");
}
}
/* Close clipboard if it was opened */
if (fCloseClipboard)
CloseClipboard ();
break;
/*
* SelectionNotify
*/
case SelectionNotify:
#if 0
ErrorF ("winClipboardFlushXEvents - SelectionNotify\n");
{
char *pszAtomName;
pszAtomName = XGetAtomName (pDisplay,
event.xselection.selection);
ErrorF ("winClipboardFlushXEvents - SelectionNotify - ATOM: %s\n",
pszAtomName);
XFree (pszAtomName);
}
#endif
/*
* Request conversion of UTF8 and CompoundText targets.
*/
if (event.xselection.property == None)
{
if (event.xselection.target == XA_STRING)
{
#if 0
ErrorF ("winClipboardFlushXEvents - SelectionNotify - "
"XA_STRING\n");
#endif
return WIN_XEVENTS_CONVERT;
}
else if (event.xselection.target == atomUTF8String)
{
#if 0
ErrorF ("winClipboardFlushXEvents - SelectionNotify - "
"Requesting conversion of UTF8 target.\n");
#endif
iReturn = XConvertSelection (pDisplay,
event.xselection.selection,
XA_STRING,
atomLocalProperty,
iWindow,
CurrentTime);
if (iReturn != Success)
{
ErrorF ("winClipboardFlushXEvents - SelectionNotify - "
"XConvertSelection () failed for UTF8String, "
"aborting: %d\n",
iReturn);
break;
}
/* Process the ConvertSelection event */
XFlush (pDisplay);
return WIN_XEVENTS_CONVERT;
}
#ifdef X_HAVE_UTF8_STRING
else if (event.xselection.target == atomCompoundText)
{
#if 0
ErrorF ("winClipboardFlushXEvents - SelectionNotify - "
"Requesting conversion of CompoundText target.\n");
#endif
iReturn = XConvertSelection (pDisplay,
event.xselection.selection,
atomUTF8String,
atomLocalProperty,
iWindow,
CurrentTime);
if (iReturn != Success)
{
ErrorF ("winClipboardFlushXEvents - SelectionNotify - "
"XConvertSelection () failed for CompoundText, "
"aborting: %d\n",
iReturn);
break;
}
/* Process the ConvertSelection event */
XFlush (pDisplay);
return WIN_XEVENTS_CONVERT;
}
#endif
else
{
ErrorF ("winClipboardFlushXEvents - SelectionNotify - "
"Unknown format. Cannot request conversion, "
"aborting.\n");
break;
}
}
/* Retrieve the size of the stored data */
iReturn = XGetWindowProperty (pDisplay,
iWindow,
atomLocalProperty,
0,
0, /* Don't get data, just size */
False,
AnyPropertyType,
&xtpText.encoding,
&xtpText.format,
&xtpText.nitems,
&ulReturnBytesLeft,
&xtpText.value);
if (iReturn != Success)
{
ErrorF ("winClipboardFlushXEvents - SelectionNotify - "
"XGetWindowProperty () failed, aborting: %d\n",
iReturn);
break;
}
#if 0
ErrorF ("SelectionNotify - returned data %d left %d\n",
xtpText.nitems, ulReturnBytesLeft);
#endif
/* Request the selection data */
iReturn = XGetWindowProperty (pDisplay,
iWindow,
atomLocalProperty,
0,
ulReturnBytesLeft,
False,
AnyPropertyType,
&xtpText.encoding,
&xtpText.format,
&xtpText.nitems,
&ulReturnBytesLeft,
&xtpText.value);
if (iReturn != Success)
{
ErrorF ("winClipboardFlushXEvents - SelectionNotify - "
"XGetWindowProperty () failed, aborting: %d\n",
iReturn);
break;
}
#if 0
{
char *pszAtomName = NULL;
ErrorF ("SelectionNotify - returned data %d left %d\n",
xtpText.nitems, ulReturnBytesLeft);
pszAtomName = XGetAtomName(pDisplay, xtpText.encoding);
ErrorF ("Notify atom name %s\n", pszAtomName);
XFree (pszAtomName);
pszAtomName = NULL;
}
#endif
if (fUseUnicode)
{
#ifdef X_HAVE_UTF8_STRING
/* Convert the text property to a text list */
iReturn = Xutf8TextPropertyToTextList (pDisplay,
&xtpText,
&ppszTextList,
&iCount);
#endif
}
else
{
iReturn = XmbTextPropertyToTextList (pDisplay,
&xtpText,
&ppszTextList,
&iCount);
}
if (iReturn == Success || iReturn > 0)
{
/* Conversion succeeded or some unconvertible characters */
if (ppszTextList != NULL)
{
for (i = 0; i < iCount; i++)
{
iReturnDataLen += strlen(ppszTextList[i]);
}
pszReturnData = malloc (iReturnDataLen + 1);
pszReturnData[0] = '\0';
for (i = 0; i < iCount; i++)
{
strcat (pszReturnData, ppszTextList[i]);
}
}
else
{
ErrorF ("winClipboardFlushXEvents - SelectionNotify - "
"X*TextPropertyToTextList list_return is NULL.\n");
pszReturnData = malloc (1);
pszReturnData[0] = '\0';
}
}
else
{
ErrorF ("winClipboardFlushXEvents - SelectionNotify - "
"X*TextPropertyToTextList returned: ");
switch (iReturn)
{
case XNoMemory:
ErrorF ("XNoMemory\n");
break;
case XConverterNotFound:
ErrorF ("XConverterNotFound\n");
break;
default:
ErrorF ("%d", iReturn);
break;
}
pszReturnData = malloc (1);
pszReturnData[0] = '\0';
}
/* Free the data returned from XGetWindowProperty */
if (ppszTextList)
XFreeStringList (ppszTextList);
ppszTextList = NULL;
XFree (xtpText.value);
xtpText.value = NULL;
/* Convert the X clipboard string to DOS format */
winClipboardUNIXtoDOS (&pszReturnData, strlen (pszReturnData));
if (fUseUnicode)
{
/* Find out how much space needed to convert MBCS to Unicode */
iUnicodeLen = MultiByteToWideChar (CP_UTF8,
0,
pszReturnData,
-1,
NULL,
0);
/* Allocate memory for the Unicode string */
pwszUnicodeStr
= (wchar_t*) malloc (sizeof (wchar_t) * (iUnicodeLen + 1));
if (!pwszUnicodeStr)
{
ErrorF ("winClipboardFlushXEvents - SelectionNotify "
"malloc failed for pwszUnicodeStr, aborting.\n");
/* Abort */
fAbort = TRUE;
goto winClipboardFlushXEvents_SelectionNotify_Done;
}
/* Do the actual conversion */
MultiByteToWideChar (CP_UTF8,
0,
pszReturnData,
-1,
pwszUnicodeStr,
iUnicodeLen);
/* Allocate global memory for the X clipboard data */
hGlobal = GlobalAlloc (GMEM_MOVEABLE,
sizeof (wchar_t) * (iUnicodeLen + 1));
}
else
{
pszConvertData = strdup (pszReturnData);
iConvertDataLen = strlen (pszConvertData) + 1;
/* Allocate global memory for the X clipboard data */
hGlobal = GlobalAlloc (GMEM_MOVEABLE, iConvertDataLen);
}
/* Check that global memory was allocated */
if (!hGlobal)
{
ErrorF ("winClipboardFlushXEvents - SelectionNotify "
"GlobalAlloc failed, aborting: %ld\n",
GetLastError ());
/* Abort */
fAbort = TRUE;
goto winClipboardFlushXEvents_SelectionNotify_Done;
}
/* Obtain a pointer to the global memory */
pszGlobalData = GlobalLock (hGlobal);
if (pszGlobalData == NULL)
{
ErrorF ("winClipboardFlushXEvents - Could not lock global "
"memory for clipboard transfer\n");
/* Abort */
fAbort = TRUE;
goto winClipboardFlushXEvents_SelectionNotify_Done;
}
/* Copy the returned string into the global memory */
if (fUseUnicode)
{
memcpy (pszGlobalData,
pwszUnicodeStr,
sizeof (wchar_t) * (iUnicodeLen + 1));
free (pwszUnicodeStr);
pwszUnicodeStr = NULL;
}
else
{
strcpy (pszGlobalData, pszConvertData);
free (pszConvertData);
pszConvertData = NULL;
}
/* Release the pointer to the global memory */
GlobalUnlock (hGlobal);
pszGlobalData = NULL;
/* Push the selection data to the Windows clipboard */
if (fUseUnicode)
SetClipboardData (CF_UNICODETEXT, hGlobal);
else
SetClipboardData (CF_TEXT, hGlobal);
/* Flag that SetClipboardData has been called */
fSetClipboardData = FALSE;
/*
* NOTE: Do not try to free pszGlobalData, it is owned by
* Windows after the call to SetClipboardData ().
*/
winClipboardFlushXEvents_SelectionNotify_Done:
/* Free allocated resources */
if (ppszTextList)
XFreeStringList (ppszTextList);
if (xtpText.value)
XFree (xtpText.value);
if (pszConvertData)
free (pszConvertData);
if (pwszUnicodeStr)
free (pwszUnicodeStr);
if (hGlobal && pszGlobalData)
GlobalUnlock (hGlobal);
if (fSetClipboardData && g_fUnicodeSupport)
SetClipboardData (CF_UNICODETEXT, NULL);
if (fSetClipboardData)
SetClipboardData (CF_TEXT, NULL);
return WIN_XEVENTS_NOTIFY;
default:
break;
}
}
return WIN_XEVENTS_SUCCESS;
}
|
