xserver-multidpi/hw/xwin/winclipboardxevents.c
2003-11-14 16:48:57 +00:00

723 lines
19 KiB
C

/*
*Copyright (C) 1994-2000 The XFree86 Project, Inc. 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 THE XFREE86 PROJECT 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 the XFree86 Project
*shall not be used in advertising or otherwise to promote the sale, use
*or other dealings in this Software without prior written authorization
*from the XFree86 Project.
*
* Authors: Harold L Hunt II
*/
/* $XFree86: xc/programs/Xserver/hw/xwin/winclipboardxevents.c,v 1.1 2003/02/12 15:01:38 alanh Exp $ */
#include "winclipboard.h"
/*
* Process any pending X events
*/
Bool
winClipboardFlushXEvents (HWND hwnd,
Atom atomClipboard,
Atom atomLocalProperty,
Atom atomUTF8String,
Atom atomCompoundText,
Atom atomTargets,
Atom atomDeleteWindow,
int iWindow,
Display *pDisplay,
Bool fUnicodeSupport)
{
Atom atomReturnType;
int iReturnFormat;
unsigned long ulReturnItems;
XTextProperty xtpText;
XEvent event;
XSelectionEvent eventSelection;
unsigned long ulReturnBytesLeft;
unsigned char *pszReturnData = NULL;
char *pszGlobalData = NULL;
int iReturn;
HGLOBAL hGlobal;
Bool fReturn = TRUE;
XICCEncodingStyle xiccesStyle;
int iUTF8;
char *pszUTF8 = NULL;
char *pszTextList[2];
int iCount;
char **ppszTextList = NULL;
wchar_t *pwszUnicodeStr = NULL;
int iUnicodeLen = 0;
/* Process all pending events */
while (XPending (pDisplay))
{
/* Get the next event - will not block because one is ready */
XNextEvent (pDisplay, &event);
/* Branch on the event type */
switch (event.type)
{
case ClientMessage:
if (event.xclient.data.l[0] == atomDeleteWindow)
{
ErrorF ("\nReceived WM_DELETE_WINDOW\n\n");
fReturn = FALSE;
}
else
ErrorF ("\nUnknown ClientMessage\n\n");
break;
case SelectionClear:
/* Request the lost selection contents */
iReturn = XConvertSelection (pDisplay,
event.xselectionclear.selection,
atomCompoundText,
atomLocalProperty,
iWindow,
CurrentTime);
if (iReturn == BadAtom || iReturn == BadWindow)
{
ErrorF ("SelectionClear - XConvertSelection () failed\n");
pthread_exit (NULL);
}
break;
/*
* 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)
{
/* 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)
{
ErrorF ("SelectionRequest - XSendEvent () failed\n");
pthread_exit (NULL);
}
break;
}
/* Handle targets type of request */
if (event.xselectionrequest.target == atomTargets)
{
Atom atomTargetArr[4] = {atomTargets,
atomCompoundText,
atomUTF8String,
XA_STRING};
/* Try to change the property */
iReturn = XChangeProperty (pDisplay,
event.xselectionrequest.requestor,
event.xselectionrequest.property,
event.xselectionrequest.target,
8,
PropModeReplace,
(char *) atomTargetArr,
sizeof (atomTargetArr));
if (iReturn == BadAlloc
|| iReturn == BadAtom
|| iReturn == BadMatch
|| iReturn == BadValue
|| iReturn == BadWindow)
{
ErrorF ("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 ("SelectionRequest - XSendEvent () failed\n");
}
break;
}
/* Access the clipboard */
if (!OpenClipboard (hwnd))
{
ErrorF ("SelectionRequest - OpenClipboard () failed: %08x\n",
GetLastError ());
pthread_exit (NULL);
}
/* Setup the string style */
if (event.xselectionrequest.target == XA_STRING)
xiccesStyle = XStringStyle;
else if (event.xselectionrequest.target == atomUTF8String)
xiccesStyle = XUTF8StringStyle;
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 */
if (fUnicodeSupport)
hGlobal = GetClipboardData (CF_UNICODETEXT);
else
hGlobal = GetClipboardData (CF_TEXT);
if (!hGlobal)
{
ErrorF ("SelectionRequest - GetClipboardData () failed: %08x\n",
GetLastError ());
pthread_exit (NULL);
}
pszGlobalData = (char *) GlobalLock (hGlobal);
/* Convert the Unicode string to UTF8 (MBCS) */
if (fUnicodeSupport)
{
iUTF8 = WideCharToMultiByte (CP_UTF8,
0,
(LPCWSTR)pszGlobalData,
-1,
NULL,
0,
NULL,
NULL);
pszUTF8 = (char *) malloc (iUTF8); /* Don't need +1 */
WideCharToMultiByte (CP_UTF8,
0,
(LPCWSTR)pszGlobalData,
-1,
pszUTF8,
iUTF8,
NULL,
NULL);
}
/* Convert DOS string to UNIX string */
if (fUnicodeSupport)
{
winClipboardDOStoUNIX (pszUTF8, strlen (pszUTF8));
/* Setup our text list */
pszTextList[0] = pszUTF8;
pszTextList[1] = NULL;
/* Initialize the text property */
xtpText.value = NULL;
/* Create the text property from the text list */
iReturn = Xutf8TextListToTextProperty (pDisplay,
pszTextList,
1,
xiccesStyle,
&xtpText);
if (iReturn == XNoMemory || iReturn == XLocaleNotSupported)
{
ErrorF ("SelectionRequest - Xutf8TextListToTextProperty "
"failed: %d\n",
iReturn);
exit(1);
}
/* Free the UTF8 string */
free (pszUTF8);
}
else
winClipboardDOStoUNIX (pszGlobalData, strlen (pszGlobalData));
/*
* FIXME: Pass pszGlobalData and strlen (pszGlobalData(
* on 1 byte, pass xtpText.value and xtpText.nitems
* on 2 byte.
*/
/* Copy the clipboard text to the requesting window */
if (fUnicodeSupport)
iReturn = XChangeProperty (pDisplay,
event.xselectionrequest.requestor,
event.xselectionrequest.property,
event.xselectionrequest.target,
8,
PropModeReplace,
xtpText.value,
xtpText.nitems);
else
iReturn = XChangeProperty (pDisplay,
event.xselectionrequest.requestor,
event.xselectionrequest.property,
event.xselectionrequest.target,
8,
PropModeReplace,
pszGlobalData,
strlen (pszGlobalData));
if (iReturn == BadAlloc || iReturn == BadAtom
|| iReturn == BadMatch || iReturn == BadValue
|| iReturn == BadWindow)
{
ErrorF ("SelectionRequest - XChangeProperty failed: %d\n",
iReturn);
pthread_exit (NULL);
}
/* Release the clipboard data */
GlobalUnlock (hGlobal);
pszGlobalData = NULL;
CloseClipboard ();
/* FIXME: Don't clean up on 1 byte. */
if (fUnicodeSupport)
{
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 ("SelectionRequest - XSendEvent () failed\n");
pthread_exit (NULL);
}
break;
/*
* SelectionNotify
*/
case SelectionNotify:
#if 0
ErrorF ("SelectionNotify\n");
#endif
{
char *pszAtomName;
pszAtomName = XGetAtomName (pDisplay,
event.xselection.selection);
ErrorF ("SelectionNotify - ATOM: %s\n",
pszAtomName);
XFree (pszAtomName);
}
#if 0
/*
* TEMP: Bail if selection is anything other than CLIPBOARD
*/
if (event.xselection.selection != atomClipboard)
break;
#endif
/*
*
* What are we doing here?
*
*/
if (fUnicodeSupport)
{
if (event.xselection.property == None)
{
if(event.xselection.target == XA_STRING)
{
#if 0
ErrorF ("SelectionNotify XA_STRING\n");
#endif
return fReturn;
}
else if (event.xselection.target == atomUTF8String)
{
ErrorF ("SelectionNotify UTF8\n");
iReturn = XConvertSelection (pDisplay,
event.xselection.selection,
XA_STRING,
atomLocalProperty,
iWindow,
CurrentTime);
if (iReturn == BadAtom || iReturn == BadWindow)
{
ErrorF ("SelectionNotify - XConvertSelection () "
"failed\n");
pthread_exit (NULL);
}
return fReturn;
}
else if (event.xselection.target == atomCompoundText)
{
ErrorF ("SelectionNotify CompoundText\n");
iReturn = XConvertSelection (pDisplay,
event.xselection.selection,
atomUTF8String,
atomLocalProperty,
iWindow,
CurrentTime);
if (iReturn == BadAtom || iReturn == BadWindow)
{
ErrorF ("SelectionNotify - XConvertSelection () "
"failed\n");
pthread_exit (NULL);
}
return fReturn;
}
else
{
ErrorF("Unknown format\n");
return fReturn;
}
}
}
/* Retrieve the size of the stored data */
if (fUnicodeSupport)
iReturn = XGetWindowProperty (pDisplay,
iWindow,
atomLocalProperty,
0,
0, /* Don't get data, just size */
False,
AnyPropertyType,
&xtpText.encoding,
&xtpText.format,
&xtpText.nitems,
&ulReturnBytesLeft,
&xtpText.value);
else
iReturn = XGetWindowProperty (pDisplay,
iWindow,
atomLocalProperty,
0,
0, /* Don't get data, just size */
False,
AnyPropertyType,
&atomReturnType,
&iReturnFormat,
&ulReturnItems,
&ulReturnBytesLeft,
&pszReturnData);
if (iReturn != Success)
{
ErrorF ("SelectionNotify - XGetWindowProperty () failed\n");
pthread_exit (NULL);
}
#if 0
if (fUnicodeSupport)
ErrorF ("SelectionNotify - returned data %d left %d\n",
xtpText.nitems, ulReturnBytesLeft);
else
ErrorF ("SelectionNotify - returned data %d left %d\n",
ulReturnItems, ulReturnBytesLeft);
#endif
/* Request the selection data */
if (fUnicodeSupport)
iReturn = XGetWindowProperty (pDisplay,
iWindow,
atomLocalProperty,
0,
ulReturnBytesLeft,
False,
AnyPropertyType,
&xtpText.encoding,
&xtpText.format,
&xtpText.nitems,
&ulReturnBytesLeft,
&xtpText.value);
else
iReturn = XGetWindowProperty (pDisplay,
iWindow,
atomLocalProperty,
0,
ulReturnBytesLeft,
False,
AnyPropertyType,
&atomReturnType,
&iReturnFormat,
&ulReturnItems,
&ulReturnBytesLeft,
&pszReturnData);
if (iReturn != Success)
{
ErrorF ("SelectionNotify - XGetWindowProperty () failed\n");
pthread_exit (NULL);
}
if (fUnicodeSupport)
{
#if 0
char *pszAtomName = NULL;
ErrorF ("SelectionNotify - returned data %d left %d\n",
prop.nitems, ulReturnBytesLeft);
pszAtomName = XGetAtomName(pDisplay, prop.encoding);
ErrorF ("Notify atom name %s\n", pszAtomName);
XFree (pszAtomName);
pszAtomName = NULL;
#endif
/* Convert the text property to a text list */
Xutf8TextPropertyToTextList (pDisplay,
&xtpText,
&ppszTextList,
&iCount);
if (iCount > 0)
{
pszReturnData = malloc (strlen (ppszTextList[0]) + 1);
strcpy (pszReturnData, ppszTextList[0]);
}
else
{
pszReturnData = malloc (1);
pszReturnData[0] = 0;
}
/* Free the data returned from XGetWindowProperty */
XFreeStringList (ppszTextList);
XFree (xtpText.value);
}
/* Convert the X clipboard string to DOS format */
winClipboardUNIXtoDOS (&pszReturnData, strlen (pszReturnData));
if (fUnicodeSupport)
{
/* 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));
/* Do the actual conversion */
MultiByteToWideChar (CP_UTF8,
0,
pszReturnData,
-1,
pwszUnicodeStr,
iUnicodeLen);
}
/* Access the Windows clipboard */
if (!OpenClipboard (hwnd))
{
ErrorF ("OpenClipboard () failed: %08x\n", GetLastError ());
pthread_exit (NULL);
}
/* Take ownership of the Window clipboard */
if (!EmptyClipboard ())
{
ErrorF ("EmptyClipboard () failed: %08x\n", GetLastError ());
pthread_exit (NULL);
}
/* Allocate global memory for the X clipboard data */
if (fUnicodeSupport)
hGlobal = GlobalAlloc (GMEM_MOVEABLE,
sizeof (wchar_t) * (iUnicodeLen + 1));
else
hGlobal = GlobalAlloc (GMEM_MOVEABLE, strlen (pszReturnData) + 1);
/* Obtain a pointer to the global memory */
pszGlobalData = GlobalLock (hGlobal);
if (pszGlobalData == NULL)
{
ErrorF ("Could not lock global memory for clipboard transfer\n");
pthread_exit (NULL);
}
/* Copy the returned string into the global memory */
if (fUnicodeSupport)
memcpy (pszGlobalData,
pwszUnicodeStr,
sizeof (wchar_t) * (iUnicodeLen + 1));
else
strcpy (pszGlobalData, pszReturnData);
/* Free the data returned from XGetWindowProperty */
if (fUnicodeSupport)
{
free (pwszUnicodeStr);
pwszUnicodeStr = NULL;
}
else
{
XFree (pszReturnData);
pszReturnData = NULL;
}
/* Release the pointer to the global memory */
GlobalUnlock (hGlobal);
pszGlobalData = NULL;
/* Push the selection data to the Windows clipboard */
if (fUnicodeSupport)
SetClipboardData (CF_UNICODETEXT, hGlobal);
else
SetClipboardData (CF_TEXT, hGlobal);
/*
* NOTE: Do not try to free pszGlobalData, it is owned by
* Windows after the call to SetClipboardData ().
*/
/* Release the clipboard */
if (!CloseClipboard ())
{
ErrorF ("CloseClipboard () failed: %08x\n", GetLastError ());
pthread_exit (NULL);
}
/* Reassert ownership of the selection */
iReturn = XSetSelectionOwner (pDisplay,
event.xselection.selection,
iWindow, CurrentTime);
if (iReturn == BadAtom || iReturn == BadWindow)
{
char *pszAtomName = NULL;
pszAtomName = XGetAtomName (pDisplay,
event.xselection.selection);
ErrorF ("SelectionNotify - Could not reassert ownership "
"of selection ATOM: %s\n", pszAtomName);
XFree (pszAtomName);
pszAtomName = NULL;
pthread_exit (NULL);
}
else
{
#if 0
char *pszAtomName = NULL;
pszAtomName = XGetAtomName (pDisplay,
event.xselection.selection);
ErrorF ("SelectionNotify - Reasserted ownership of ATOM: %s\n",
pszAtomName);
XFree (pszAtomName);
pszAtomName = NULL;
#endif
}
#if 0
/* Reassert ownership of the CLIPBOARD */
iReturn = XSetSelectionOwner (pDisplay,
atomClipboard,
iWindow, CurrentTime);
if (iReturn == BadAtom || iReturn == BadWindow)
{
ErrorF ("Could not reassert ownership of selection\n");
pthread_exit (NULL);
}
#endif
break;
#if 0
case CreateNotify:
ErrorF ("FlushXEvents - CreateNotify parent: %ld\twindow: %ld\n",
event.xcreatewindow.parent, event.xcreatewindow.window);
break;
case DestroyNotify:
ErrorF ("FlushXEvents - DestroyNotify window: %ld\tevent: %ld\n",
event.xdestroywindow.window, event.xdestroywindow.event);
break;
#endif
default:
break;
}
}
return fReturn;
}