void
TkClipCleanup(
TkDisplay *dispPtr) /* Display associated with clipboard */
{
if (dispPtr->clipWindow != NULL) {
Tk_DeleteSelHandler(dispPtr->clipWindow, dispPtr->clipboardAtom,
dispPtr->applicationAtom);
Tk_DeleteSelHandler(dispPtr->clipWindow, dispPtr->clipboardAtom,
dispPtr->windowAtom);
Tk_DestroyWindow(dispPtr->clipWindow);
Tcl_Release((ClientData) dispPtr->clipWindow);
dispPtr->clipWindow = NULL;
}
}
int
Tk_ClipboardClear(
Tcl_Interp *interp, /* Interpreter to use for error reporting. */
Tk_Window tkwin) /* Window in application that is clearing
* clipboard; identifies application and
* display. */
{
TkWindow *winPtr = (TkWindow *) tkwin;
TkDisplay *dispPtr = winPtr->dispPtr;
TkClipboardTarget *targetPtr, *nextTargetPtr;
TkClipboardBuffer *cbPtr, *nextCbPtr;
if (dispPtr->clipWindow == NULL) {
int result;
result = TkClipInit(interp, dispPtr);
if (result != TCL_OK) {
return result;
}
}
/*
* Discard any existing clipboard data and delete the selection handler(s)
* associated with that data.
*/
for (targetPtr = dispPtr->clipTargetPtr; targetPtr != NULL;
targetPtr = nextTargetPtr) {
for (cbPtr = targetPtr->firstBufferPtr; cbPtr != NULL;
cbPtr = nextCbPtr) {
ckfree(cbPtr->buffer);
nextCbPtr = cbPtr->nextPtr;
ckfree((char *) cbPtr);
}
nextTargetPtr = targetPtr->nextPtr;
Tk_DeleteSelHandler(dispPtr->clipWindow, dispPtr->clipboardAtom,
targetPtr->type);
ckfree((char *) targetPtr);
}
dispPtr->clipTargetPtr = NULL;
/*
* Reclaim the clipboard selection if we lost it.
*/
if (!dispPtr->clipboardActive) {
Tk_OwnSelection(dispPtr->clipWindow, dispPtr->clipboardAtom,
ClipboardLostSel, dispPtr);
dispPtr->clipboardActive = 1;
}
dispPtr->clipboardAppPtr = winPtr->mainPtr;
return TCL_OK;
}
void
Tk_DeleteSelHandler(
Tk_Window tkwin, /* Token for window. */
Atom selection, /* The selection whose handler is to be
* removed. */
Atom target) /* The target whose selection handler is to be
* removed. */
{
TkWindow *winPtr = (TkWindow *) tkwin;
register TkSelHandler *selPtr, *prevPtr;
register TkSelInProgress *ipPtr;
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
/*
* Find the selection handler to be deleted, or return if it doesn't
* exist.
*/
for (selPtr = winPtr->selHandlerList, prevPtr = NULL; ;
prevPtr = selPtr, selPtr = selPtr->nextPtr) {
if (selPtr == NULL) {
return;
}
if ((selPtr->selection == selection) && (selPtr->target == target)) {
break;
}
}
/*
* If ConvertSelection is processing this handler, tell it that the
* handler is dead.
*/
for (ipPtr = tsdPtr->pendingPtr; ipPtr != NULL;
ipPtr = ipPtr->nextPtr) {
if (ipPtr->selPtr == selPtr) {
ipPtr->selPtr = NULL;
}
}
/*
* Free resources associated with the handler.
*/
if (prevPtr == NULL) {
winPtr->selHandlerList = selPtr->nextPtr;
} else {
prevPtr->nextPtr = selPtr->nextPtr;
}
if ((target == XA_STRING) && (winPtr->dispPtr->utf8Atom != (Atom) NULL)) {
/*
* If the user asked for a STRING handler and we understand
* UTF8_STRING, we may have implicitly created a UTF8_STRING handler
* for them. Look for it and delete it as necessary.
*/
TkSelHandler *utf8selPtr;
target = winPtr->dispPtr->utf8Atom;
for (utf8selPtr = winPtr->selHandlerList; utf8selPtr != NULL;
utf8selPtr = utf8selPtr->nextPtr) {
if ((utf8selPtr->selection == selection)
&& (utf8selPtr->target == target)) {
break;
}
}
if (utf8selPtr != NULL) {
if ((utf8selPtr->format == target)
&& (utf8selPtr->proc == selPtr->proc)
&& (utf8selPtr->size == selPtr->size)) {
/*
* This recursive call is OK, because we've changed the value
* of 'target'.
*/
Tk_DeleteSelHandler(tkwin, selection, target);
}
}
}
if (selPtr->proc == HandleTclCommand) {
/*
* Mark the CommandInfo as deleted and free it if we can.
*/
((CommandInfo*)selPtr->clientData)->interp = NULL;
Tcl_EventuallyFree(selPtr->clientData, TCL_DYNAMIC);
}
ckfree((char *) selPtr);
}
int
Tk_SelectionObjCmd(
ClientData clientData, /* Main window associated with
* interpreter. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
Tk_Window tkwin = clientData;
char *path = NULL;
Atom selection;
char *selName = NULL, *string;
int count, index;
Tcl_Obj **objs;
static const char *const optionStrings[] = {
"clear", "get", "handle", "own", NULL
};
enum options {
SELECTION_CLEAR, SELECTION_GET, SELECTION_HANDLE, SELECTION_OWN
};
if (objc < 2) {
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?");
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objv[1], optionStrings, "option", 0,
&index) != TCL_OK) {
return TCL_ERROR;
}
switch ((enum options) index) {
case SELECTION_CLEAR: {
static const char *const clearOptionStrings[] = {
"-displayof", "-selection", NULL
};
enum clearOptions { CLEAR_DISPLAYOF, CLEAR_SELECTION };
int clearIndex;
for (count = objc-2, objs = ((Tcl_Obj **)objv)+2; count > 0;
count-=2, objs+=2) {
string = Tcl_GetString(objs[0]);
if (string[0] != '-') {
break;
}
if (count < 2) {
Tcl_AppendResult(interp, "value for \"", string,
"\" missing", NULL);
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objs[0], clearOptionStrings,
"option", 0, &clearIndex) != TCL_OK) {
return TCL_ERROR;
}
switch ((enum clearOptions) clearIndex) {
case CLEAR_DISPLAYOF:
path = Tcl_GetString(objs[1]);
break;
case CLEAR_SELECTION:
selName = Tcl_GetString(objs[1]);
break;
}
}
if (count == 1) {
path = Tcl_GetString(objs[0]);
} else if (count > 1) {
Tcl_WrongNumArgs(interp, 2, objv, "?-option value ...?");
return TCL_ERROR;
}
if (path != NULL) {
tkwin = Tk_NameToWindow(interp, path, tkwin);
}
if (tkwin == NULL) {
return TCL_ERROR;
}
if (selName != NULL) {
selection = Tk_InternAtom(tkwin, selName);
} else {
selection = XA_PRIMARY;
}
Tk_ClearSelection(tkwin, selection);
break;
}
case SELECTION_GET: {
Atom target;
char *targetName = NULL;
Tcl_DString selBytes;
int result;
static const char *const getOptionStrings[] = {
"-displayof", "-selection", "-type", NULL
};
enum getOptions { GET_DISPLAYOF, GET_SELECTION, GET_TYPE };
int getIndex;
for (count = objc-2, objs = ((Tcl_Obj **)objv)+2; count>0;
count-=2, objs+=2) {
string = Tcl_GetString(objs[0]);
if (string[0] != '-') {
break;
}
if (count < 2) {
Tcl_AppendResult(interp, "value for \"", string,
"\" missing", NULL);
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objs[0], getOptionStrings,
"option", 0, &getIndex) != TCL_OK) {
return TCL_ERROR;
}
switch ((enum getOptions) getIndex) {
case GET_DISPLAYOF:
path = Tcl_GetString(objs[1]);
break;
case GET_SELECTION:
selName = Tcl_GetString(objs[1]);
break;
case GET_TYPE:
targetName = Tcl_GetString(objs[1]);
break;
}
}
if (path != NULL) {
tkwin = Tk_NameToWindow(interp, path, tkwin);
}
if (tkwin == NULL) {
return TCL_ERROR;
}
if (selName != NULL) {
selection = Tk_InternAtom(tkwin, selName);
} else {
selection = XA_PRIMARY;
}
if (count > 1) {
Tcl_WrongNumArgs(interp, 2, objv, "?-option value ...?");
return TCL_ERROR;
} else if (count == 1) {
target = Tk_InternAtom(tkwin, Tcl_GetString(objs[0]));
} else if (targetName != NULL) {
target = Tk_InternAtom(tkwin, targetName);
} else {
target = XA_STRING;
}
Tcl_DStringInit(&selBytes);
result = Tk_GetSelection(interp, tkwin, selection, target,
SelGetProc, &selBytes);
if (result == TCL_OK) {
Tcl_DStringResult(interp, &selBytes);
} else {
Tcl_DStringFree(&selBytes);
}
return result;
}
case SELECTION_HANDLE: {
Atom target, format;
char *targetName = NULL;
char *formatName = NULL;
register CommandInfo *cmdInfoPtr;
int cmdLength;
static const char *const handleOptionStrings[] = {
"-format", "-selection", "-type", NULL
};
enum handleOptions {
HANDLE_FORMAT, HANDLE_SELECTION, HANDLE_TYPE
};
int handleIndex;
for (count = objc-2, objs = ((Tcl_Obj **)objv)+2; count > 0;
count-=2, objs+=2) {
string = Tcl_GetString(objs[0]);
if (string[0] != '-') {
break;
}
if (count < 2) {
Tcl_AppendResult(interp, "value for \"", string,
"\" missing", NULL);
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objs[0],handleOptionStrings,
"option", 0, &handleIndex) != TCL_OK) {
return TCL_ERROR;
}
switch ((enum handleOptions) handleIndex) {
case HANDLE_FORMAT:
formatName = Tcl_GetString(objs[1]);
break;
case HANDLE_SELECTION:
selName = Tcl_GetString(objs[1]);
break;
case HANDLE_TYPE:
targetName = Tcl_GetString(objs[1]);
break;
}
}
if ((count < 2) || (count > 4)) {
Tcl_WrongNumArgs(interp, 2, objv, "?-option value ...? window command");
return TCL_ERROR;
}
tkwin = Tk_NameToWindow(interp, Tcl_GetString(objs[0]), tkwin);
if (tkwin == NULL) {
return TCL_ERROR;
}
if (selName != NULL) {
selection = Tk_InternAtom(tkwin, selName);
} else {
selection = XA_PRIMARY;
}
if (count > 2) {
target = Tk_InternAtom(tkwin, Tcl_GetString(objs[2]));
} else if (targetName != NULL) {
target = Tk_InternAtom(tkwin, targetName);
} else {
target = XA_STRING;
}
if (count > 3) {
format = Tk_InternAtom(tkwin, Tcl_GetString(objs[3]));
} else if (formatName != NULL) {
format = Tk_InternAtom(tkwin, formatName);
} else {
format = XA_STRING;
}
string = Tcl_GetStringFromObj(objs[1], &cmdLength);
if (cmdLength == 0) {
Tk_DeleteSelHandler(tkwin, selection, target);
} else {
cmdInfoPtr = (CommandInfo *) ckalloc((unsigned) (
sizeof(CommandInfo) - 3 + cmdLength));
cmdInfoPtr->interp = interp;
cmdInfoPtr->charOffset = 0;
cmdInfoPtr->byteOffset = 0;
cmdInfoPtr->buffer[0] = '\0';
cmdInfoPtr->cmdLength = cmdLength;
strcpy(cmdInfoPtr->command, string);
Tk_CreateSelHandler(tkwin, selection, target, HandleTclCommand,
cmdInfoPtr, format);
}
return TCL_OK;
}
case SELECTION_OWN: {
register LostCommand *lostPtr;
char *script = NULL;
int cmdLength;
static const char *const ownOptionStrings[] = {
"-command", "-displayof", "-selection", NULL
};
enum ownOptions { OWN_COMMAND, OWN_DISPLAYOF, OWN_SELECTION };
int ownIndex;
for (count = objc-2, objs = ((Tcl_Obj **)objv)+2; count > 0;
count-=2, objs+=2) {
string = Tcl_GetString(objs[0]);
if (string[0] != '-') {
break;
}
if (count < 2) {
Tcl_AppendResult(interp, "value for \"", string,
"\" missing", NULL);
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objs[0], ownOptionStrings,
"option", 0, &ownIndex) != TCL_OK) {
return TCL_ERROR;
}
switch ((enum ownOptions) ownIndex) {
case OWN_COMMAND:
script = Tcl_GetString(objs[1]);
break;
case OWN_DISPLAYOF:
path = Tcl_GetString(objs[1]);
break;
case OWN_SELECTION:
selName = Tcl_GetString(objs[1]);
break;
}
}
if (count > 2) {
Tcl_WrongNumArgs(interp, 2, objv, "?-option value ...? ?window?");
return TCL_ERROR;
}
if (selName != NULL) {
selection = Tk_InternAtom(tkwin, selName);
} else {
selection = XA_PRIMARY;
}
if (count == 0) {
TkSelectionInfo *infoPtr;
TkWindow *winPtr;
if (path != NULL) {
tkwin = Tk_NameToWindow(interp, path, tkwin);
}
if (tkwin == NULL) {
return TCL_ERROR;
}
winPtr = (TkWindow *)tkwin;
for (infoPtr = winPtr->dispPtr->selectionInfoPtr;
infoPtr != NULL; infoPtr = infoPtr->nextPtr) {
if (infoPtr->selection == selection) {
break;
}
}
/*
* Ignore the internal clipboard window.
*/
if ((infoPtr != NULL)
&& (infoPtr->owner != winPtr->dispPtr->clipWindow)) {
Tcl_SetResult(interp, Tk_PathName(infoPtr->owner), TCL_STATIC);
}
return TCL_OK;
}
tkwin = Tk_NameToWindow(interp, Tcl_GetString(objs[0]), tkwin);
if (tkwin == NULL) {
return TCL_ERROR;
}
if (count == 2) {
script = Tcl_GetString(objs[1]);
}
if (script == NULL) {
Tk_OwnSelection(tkwin, selection, NULL, NULL);
return TCL_OK;
}
cmdLength = strlen(script);
lostPtr = (LostCommand *)
ckalloc((unsigned) (sizeof(LostCommand) - 3 + cmdLength));
lostPtr->interp = interp;
strcpy(lostPtr->command, script);
Tk_OwnSelection(tkwin, selection, LostSelection, lostPtr);
return TCL_OK;
}
}
return TCL_OK;
}
