diff options
Diffstat (limited to 'xorg-server/hw/xwin/winclipboardxevents.c')
| -rw-r--r-- | xorg-server/hw/xwin/winclipboardxevents.c | 796 |
1 files changed, 796 insertions, 0 deletions
diff --git a/xorg-server/hw/xwin/winclipboardxevents.c b/xorg-server/hw/xwin/winclipboardxevents.c new file mode 100644 index 000000000..d4c617bec --- /dev/null +++ b/xorg-server/hw/xwin/winclipboardxevents.c @@ -0,0 +1,796 @@ +/* + *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; +} |