static void
EmbWinLostSlaveProc(
ClientData clientData, /* Pointer to record describing window item. */
Tk_Window tkwin) /* Window that was claimed away by another
* geometry manager. */
{
TkTextEmbWindowClient *client = (TkTextEmbWindowClient*)clientData;
TkTextSegment *ewPtr = client->parent;
TkTextIndex index;
Tcl_HashEntry *hPtr;
TkTextEmbWindowClient *loop;
Tk_DeleteEventHandler(client->tkwin, StructureNotifyMask,
EmbWinStructureProc, (ClientData) client);
Tcl_CancelIdleCall(EmbWinDelayedUnmap, (ClientData) client);
if (client->textPtr->tkwin != Tk_Parent(tkwin)) {
Tk_UnmaintainGeometry(tkwin, client->textPtr->tkwin);
} else {
Tk_UnmapWindow(tkwin);
}
hPtr = Tcl_FindHashEntry(&ewPtr->body.ew.sharedTextPtr->windowTable,
Tk_PathName(client->tkwin));
Tcl_DeleteHashEntry(hPtr);
client->tkwin = NULL;
ewPtr->body.ew.tkwin = NULL;
/*
* Free up the memory allocation for this client.
*/
loop = ewPtr->body.ew.clients;
if (loop == client) {
ewPtr->body.ew.clients = client->next;
} else {
while (loop->next != client) {
loop = loop->next;
}
loop->next = client->next;
}
ckfree((char *) client);
index.tree = ewPtr->body.ew.sharedTextPtr->tree;
index.linePtr = ewPtr->body.ew.linePtr;
index.byteIndex = TkTextSegToOffset(ewPtr, ewPtr->body.ew.linePtr);
TkTextChanged(ewPtr->body.ew.sharedTextPtr, NULL, &index, &index);
TkTextInvalidateLineMetrics(ewPtr->body.ew.sharedTextPtr, NULL,
index.linePtr, 0, TK_TEXT_INVALIDATE_ONLY);
}
void Ttk_DeleteManager(Ttk_Manager *mgr)
{
Tk_DeleteEventHandler(
mgr->masterWindow, ManagerEventMask, ManagerEventHandler, mgr);
while (mgr->nSlaves > 0) {
Ttk_ForgetSlave(mgr, mgr->nSlaves - 1);
}
if (mgr->slaves) {
ckfree((ClientData)mgr->slaves);
}
Tcl_CancelIdleCall(ManagerIdleProc, mgr);
ckfree((ClientData)mgr);
}
/* ARGSUSED */
static void
WinItemLostSlaveProc(
ClientData clientData, /* WindowItem structure for slave window that
* was stolen away. */
Tk_Window tkwin) /* Tk's handle for the slave window. */
{
WindowItem *winItemPtr = clientData;
Tk_Window canvasTkwin = Tk_CanvasTkwin(winItemPtr->canvas);
Tk_DeleteEventHandler(winItemPtr->tkwin, StructureNotifyMask,
WinItemStructureProc, winItemPtr);
if (canvasTkwin != Tk_Parent(winItemPtr->tkwin)) {
Tk_UnmaintainGeometry(winItemPtr->tkwin, canvasTkwin);
}
Tk_UnmapWindow(winItemPtr->tkwin);
winItemPtr->tkwin = NULL;
}
static void
DeleteWinItem(
Tk_Canvas canvas, /* Overall info about widget. */
Tk_Item *itemPtr, /* Item that is being deleted. */
Display *display) /* Display containing window for canvas. */
{
WindowItem *winItemPtr = (WindowItem *) itemPtr;
Tk_Window canvasTkwin = Tk_CanvasTkwin(canvas);
if (winItemPtr->tkwin != NULL) {
Tk_DeleteEventHandler(winItemPtr->tkwin, StructureNotifyMask,
WinItemStructureProc, winItemPtr);
Tk_ManageGeometry(winItemPtr->tkwin, NULL, NULL);
if (canvasTkwin != Tk_Parent(winItemPtr->tkwin)) {
Tk_UnmaintainGeometry(winItemPtr->tkwin, canvasTkwin);
}
Tk_UnmapWindow(winItemPtr->tkwin);
}
}
static void
FocusMapProc(
ClientData clientData, /* Toplevel window. */
XEvent *eventPtr) /* Information about event. */
{
TkWindow *winPtr = clientData;
DisplayFocusInfo *displayFocusPtr;
if (eventPtr->type == VisibilityNotify) {
displayFocusPtr = FindDisplayFocusInfo(winPtr->mainPtr,
winPtr->dispPtr);
DEBUG(winPtr->dispPtr, ("auto-focussing on %s, force %d\n",
winPtr->pathName, displayFocusPtr->forceFocus));
Tk_DeleteEventHandler((Tk_Window) winPtr, VisibilityChangeMask,
FocusMapProc, clientData);
displayFocusPtr->focusOnMapPtr = NULL;
TkSetFocusWin(winPtr, displayFocusPtr->forceFocus);
}
}
/* ARGSUSED */
static void
PlaceLostSlaveProc(
ClientData clientData, /* Slave structure for slave window that was
* stolen away. */
Tk_Window tkwin) /* Tk's handle for the slave window. */
{
register Slave *slavePtr = clientData;
TkDisplay *dispPtr = ((TkWindow *) slavePtr->tkwin)->dispPtr;
if (slavePtr->masterPtr->tkwin != Tk_Parent(slavePtr->tkwin)) {
Tk_UnmaintainGeometry(slavePtr->tkwin, slavePtr->masterPtr->tkwin);
}
Tk_UnmapWindow(tkwin);
UnlinkSlave(slavePtr);
Tcl_DeleteHashEntry(Tcl_FindHashEntry(&dispPtr->slaveTable,
(char *) tkwin));
Tk_DeleteEventHandler(tkwin, StructureNotifyMask, SlaveStructureProc,
slavePtr);
FreeSlave(slavePtr);
}
static void
ElementStateEventProc(ClientData clientData, XEvent *ev)
{
ElementStateTracker *es = (ElementStateTracker *)clientData;
Ttk_LayoutNode *node;
switch (ev->type)
{
case MotionNotify :
node = Ttk_LayoutIdentify(
es->corePtr->layout,ev->xmotion.x,ev->xmotion.y);
ActivateElement(es, node);
break;
case LeaveNotify:
ActivateElement(es, 0);
if (ev->xcrossing.mode == NotifyGrab)
PressElement(es, 0);
break;
case EnterNotify:
node = Ttk_LayoutIdentify(
es->corePtr->layout,ev->xcrossing.x,ev->xcrossing.y);
ActivateElement(es, node);
break;
case ButtonPress:
node = Ttk_LayoutIdentify(
es->corePtr->layout, ev->xbutton.x, ev->xbutton.y);
if (node)
PressElement(es, node);
break;
case ButtonRelease:
ReleaseElement(es);
break;
case DestroyNotify:
/* Unregister this event handler and free client data.
*/
Tk_DeleteEventHandler(es->corePtr->tkwin,
ElementStateMask, ElementStateEventProc, es);
ckfree(clientData);
break;
}
}
static void
CursorEventProc(ClientData clientData, XEvent *eventPtr)
{
WidgetCore *corePtr = (WidgetCore *)clientData;
CursorManager *cm = GetCursorManager(corePtr->interp);
switch (eventPtr->type) {
case DestroyNotify:
if (cm->owner == corePtr)
LoseCursor(cm, corePtr);
Tk_DeleteEventHandler(
corePtr->tkwin, CursorEventMask, CursorEventProc, clientData);
break;
case FocusIn:
if (RealFocusEvent(eventPtr->xfocus.detail))
ClaimCursor(cm, corePtr);
break;
case FocusOut:
if (RealFocusEvent(eventPtr->xfocus.detail))
LoseCursor(cm, corePtr);
break;
}
}
void
TkTextWinFreeClient(
Tcl_HashEntry *hPtr, /* Hash entry corresponding to this client, or
* NULL */
TkTextEmbWindowClient *client)
/* Client data structure, with the 'tkwin'
* field to be cleaned up. */
{
if (hPtr != NULL) {
/*
* (It's possible for there to be no hash table entry for this window,
* if an error occurred while creating the window segment but before
* the window got added to the table)
*/
Tcl_DeleteHashEntry(hPtr);
}
/*
* Delete the event handler for the window before destroying the window,
* so that EmbWinStructureProc doesn't get called (we'll already do
* everything that it would have done, and it will just get confused).
*/
if (client->tkwin != NULL) {
Tk_DeleteEventHandler(client->tkwin, StructureNotifyMask,
EmbWinStructureProc, client);
Tk_DestroyWindow(client->tkwin);
}
Tcl_CancelIdleCall(EmbWinDelayedUnmap, client);
/*
* Free up this client.
*/
ckfree((char *) client);
}
int
Tk_CreateConsoleWindow(
Tcl_Interp *interp) /* Interpreter to use for prompting. */
{
Tcl_Channel chan;
ConsoleInfo *info;
Tk_Window mainWindow;
Tcl_Command token;
int result = TCL_OK;
int haveConsoleChannel = 1;
/* Init an interp with Tcl and Tk */
Tcl_Interp *consoleInterp = Tcl_CreateInterp();
if (Tcl_Init(consoleInterp) != TCL_OK) {
goto error;
}
if (Tk_Init(consoleInterp) != TCL_OK) {
goto error;
}
/*
* Fetch the instance data from whatever std channel is a
* console channel. If none, create fresh instance data.
*/
if (Tcl_GetChannelType(chan = Tcl_GetStdChannel(TCL_STDIN))
== &consoleChannelType) {
} else if (Tcl_GetChannelType(chan = Tcl_GetStdChannel(TCL_STDOUT))
== &consoleChannelType) {
} else if (Tcl_GetChannelType(chan = Tcl_GetStdChannel(TCL_STDERR))
== &consoleChannelType) {
} else {
haveConsoleChannel = 0;
}
if (haveConsoleChannel) {
ChannelData *data = (ChannelData *) Tcl_GetChannelInstanceData(chan);
info = data->info;
if (info->consoleInterp) {
/* New ConsoleInfo for a new console window */
info = (ConsoleInfo *) ckalloc(sizeof(ConsoleInfo));
info->refCount = 0;
/* Update any console channels to make use of the new console */
if (Tcl_GetChannelType(chan = Tcl_GetStdChannel(TCL_STDIN))
== &consoleChannelType) {
data = (ChannelData *) Tcl_GetChannelInstanceData(chan);
data->info->refCount--;
data->info = info;
data->info->refCount++;
}
if (Tcl_GetChannelType(chan = Tcl_GetStdChannel(TCL_STDOUT))
== &consoleChannelType) {
data = (ChannelData *) Tcl_GetChannelInstanceData(chan);
data->info->refCount--;
data->info = info;
data->info->refCount++;
}
if (Tcl_GetChannelType(chan = Tcl_GetStdChannel(TCL_STDERR))
== &consoleChannelType) {
data = (ChannelData *) Tcl_GetChannelInstanceData(chan);
data->info->refCount--;
data->info = info;
data->info->refCount++;
}
}
} else {
info = (ConsoleInfo *) ckalloc(sizeof(ConsoleInfo));
info->refCount = 0;
}
info->consoleInterp = consoleInterp;
info->interp = interp;
Tcl_CallWhenDeleted(consoleInterp, InterpDeleteProc, info);
info->refCount++;
Tcl_CreateThreadExitHandler(DeleteConsoleInterp, consoleInterp);
/*
* Add console commands to the interp
*/
token = Tcl_CreateObjCommand(interp, "console", ConsoleObjCmd, info,
ConsoleDeleteProc);
info->refCount++;
/*
* We don't have to count the ref held by the [consoleinterp] command
* in the consoleInterp. The ref held by the consoleInterp delete
* handler takes care of us.
*/
Tcl_CreateObjCommand(consoleInterp, "consoleinterp", InterpreterObjCmd,
info, NULL);
mainWindow = Tk_MainWindow(interp);
if (mainWindow) {
Tk_CreateEventHandler(mainWindow, StructureNotifyMask,
ConsoleEventProc, info);
info->refCount++;
}
Tcl_Preserve(consoleInterp);
result = Tcl_GlobalEval(consoleInterp, "source $tk_library/console.tcl");
if (result == TCL_ERROR) {
Tcl_SetReturnOptions(interp,
Tcl_GetReturnOptions(consoleInterp, result));
Tcl_SetObjResult(interp, Tcl_GetObjResult(consoleInterp));
}
Tcl_Release(consoleInterp);
if (result == TCL_ERROR) {
Tcl_DeleteCommandFromToken(interp, token);
mainWindow = Tk_MainWindow(interp);
if (mainWindow) {
Tk_DeleteEventHandler(mainWindow, StructureNotifyMask,
ConsoleEventProc, info);
if (--info->refCount <= 0) {
ckfree((char *) info);
}
}
goto error;
}
return TCL_OK;
error:
Tcl_AddErrorInfo(interp, "\n (creating console window)");
if (!Tcl_InterpDeleted(consoleInterp)) {
Tcl_DeleteInterp(consoleInterp);
}
return TCL_ERROR;
}
int
Tk_PlaceObjCmd(
ClientData clientData, /* Interpreter main window. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
Tk_Window main_win = clientData;
Tk_Window tkwin;
Slave *slavePtr;
TkDisplay *dispPtr;
Tk_OptionTable optionTable;
static const char *const optionStrings[] = {
"configure", "forget", "info", "slaves", NULL
};
enum options { PLACE_CONFIGURE, PLACE_FORGET, PLACE_INFO, PLACE_SLAVES };
int index;
if (objc < 3) {
Tcl_WrongNumArgs(interp, 1, objv, "option|pathName args");
return TCL_ERROR;
}
/*
* Create the option table for this widget class. If it has already been
* created, the cached pointer will be returned.
*/
optionTable = Tk_CreateOptionTable(interp, optionSpecs);
/*
* Handle special shortcut where window name is first argument.
*/
if (Tcl_GetString(objv[1])[0] == '.') {
if (TkGetWindowFromObj(interp, main_win, objv[1],
&tkwin) != TCL_OK) {
return TCL_ERROR;
}
/*
* Initialize, if that hasn't been done yet.
*/
dispPtr = ((TkWindow *) tkwin)->dispPtr;
if (!dispPtr->placeInit) {
Tcl_InitHashTable(&dispPtr->masterTable, TCL_ONE_WORD_KEYS);
Tcl_InitHashTable(&dispPtr->slaveTable, TCL_ONE_WORD_KEYS);
dispPtr->placeInit = 1;
}
return ConfigureSlave(interp, tkwin, optionTable, objc-2, objv+2);
}
/*
* Handle more general case of option followed by window name followed by
* possible additional arguments.
*/
if (TkGetWindowFromObj(interp, main_win, objv[2],
&tkwin) != TCL_OK) {
return TCL_ERROR;
}
/*
* Initialize, if that hasn't been done yet.
*/
dispPtr = ((TkWindow *) tkwin)->dispPtr;
if (!dispPtr->placeInit) {
Tcl_InitHashTable(&dispPtr->masterTable, TCL_ONE_WORD_KEYS);
Tcl_InitHashTable(&dispPtr->slaveTable, TCL_ONE_WORD_KEYS);
dispPtr->placeInit = 1;
}
if (Tcl_GetIndexFromObjStruct(interp, objv[1], optionStrings,
sizeof(char *), "option", 0, &index) != TCL_OK) {
return TCL_ERROR;
}
switch ((enum options) index) {
case PLACE_CONFIGURE:
if (objc == 3 || objc == 4) {
Tcl_Obj *objPtr;
slavePtr = FindSlave(tkwin);
if (slavePtr == NULL) {
return TCL_OK;
}
objPtr = Tk_GetOptionInfo(interp, (char *) slavePtr, optionTable,
(objc == 4) ? objv[3] : NULL, tkwin);
if (objPtr == NULL) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, objPtr);
return TCL_OK;
}
return ConfigureSlave(interp, tkwin, optionTable, objc-3, objv+3);
case PLACE_FORGET:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "pathName");
return TCL_ERROR;
}
slavePtr = FindSlave(tkwin);
if (slavePtr == NULL) {
return TCL_OK;
}
if ((slavePtr->masterPtr != NULL) &&
(slavePtr->masterPtr->tkwin != Tk_Parent(slavePtr->tkwin))) {
Tk_UnmaintainGeometry(slavePtr->tkwin, slavePtr->masterPtr->tkwin);
}
UnlinkSlave(slavePtr);
Tcl_DeleteHashEntry(Tcl_FindHashEntry(&dispPtr->slaveTable,
(char *) tkwin));
Tk_DeleteEventHandler(tkwin, StructureNotifyMask, SlaveStructureProc,
slavePtr);
Tk_ManageGeometry(tkwin, NULL, NULL);
Tk_UnmapWindow(tkwin);
FreeSlave(slavePtr);
break;
case PLACE_INFO:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "pathName");
return TCL_ERROR;
}
return PlaceInfoCommand(interp, tkwin);
case PLACE_SLAVES: {
Master *masterPtr;
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "pathName");
return TCL_ERROR;
}
masterPtr = FindMaster(tkwin);
if (masterPtr != NULL) {
Tcl_Obj *listPtr = Tcl_NewObj();
for (slavePtr = masterPtr->slavePtr; slavePtr != NULL;
slavePtr = slavePtr->nextPtr) {
Tcl_ListObjAppendElement(NULL, listPtr,
TkNewWindowObj(slavePtr->tkwin));
}
Tcl_SetObjResult(interp, listPtr);
}
break;
}
}
return TCL_OK;
}
static int
EmbWinConfigure(
TkText *textPtr, /* Information about text widget that contains
* embedded window. */
TkTextSegment *ewPtr, /* Embedded window to be configured. */
int objc, /* Number of strings in objv. */
Tcl_Obj *const objv[]) /* Array of objects describing configuration
* options. */
{
Tk_Window oldWindow;
TkTextEmbWindowClient *client;
/*
* Copy over client specific value before querying or setting.
*/
client = EmbWinGetClient(textPtr, ewPtr);
if (client != NULL) {
ewPtr->body.ew.tkwin = client->tkwin;
} else {
ewPtr->body.ew.tkwin = NULL;
}
oldWindow = ewPtr->body.ew.tkwin;
if (Tk_SetOptions(textPtr->interp, (char *) &ewPtr->body.ew,
ewPtr->body.ew.optionTable, objc, objv, textPtr->tkwin, NULL,
NULL) != TCL_OK) {
return TCL_ERROR;
}
if (oldWindow != ewPtr->body.ew.tkwin) {
if (oldWindow != NULL) {
Tcl_DeleteHashEntry(Tcl_FindHashEntry(
&textPtr->sharedTextPtr->windowTable,
Tk_PathName(oldWindow)));
Tk_DeleteEventHandler(oldWindow, StructureNotifyMask,
EmbWinStructureProc, client);
Tk_ManageGeometry(oldWindow, NULL, NULL);
if (textPtr->tkwin != Tk_Parent(oldWindow)) {
Tk_UnmaintainGeometry(oldWindow, textPtr->tkwin);
} else {
Tk_UnmapWindow(oldWindow);
}
}
if (client != NULL) {
client->tkwin = NULL;
}
if (ewPtr->body.ew.tkwin != NULL) {
Tk_Window ancestor, parent;
Tcl_HashEntry *hPtr;
int isNew;
/*
* Make sure that the text is either the parent of the embedded
* window or a descendant of that parent. Also, don't allow a
* top-level window to be managed inside a text.
*/
parent = Tk_Parent(ewPtr->body.ew.tkwin);
for (ancestor = textPtr->tkwin; ; ancestor = Tk_Parent(ancestor)) {
if (ancestor == parent) {
break;
}
if (Tk_TopWinHierarchy(ancestor)) {
badMaster:
Tcl_AppendResult(textPtr->interp, "can't embed ",
Tk_PathName(ewPtr->body.ew.tkwin), " in ",
Tk_PathName(textPtr->tkwin), NULL);
ewPtr->body.ew.tkwin = NULL;
if (client != NULL) {
client->tkwin = NULL;
}
return TCL_ERROR;
}
}
if (Tk_TopWinHierarchy(ewPtr->body.ew.tkwin)
|| (ewPtr->body.ew.tkwin == textPtr->tkwin)) {
goto badMaster;
}
if (client == NULL) {
/*
* Have to make the new client.
*/
client = (TkTextEmbWindowClient *)
ckalloc(sizeof(TkTextEmbWindowClient));
client->next = ewPtr->body.ew.clients;
client->textPtr = textPtr;
client->tkwin = NULL;
client->chunkCount = 0;
client->displayed = 0;
client->parent = ewPtr;
ewPtr->body.ew.clients = client;
}
client->tkwin = ewPtr->body.ew.tkwin;
/*
* Take over geometry management for the window, plus create an
* event handler to find out when it is deleted.
*/
Tk_ManageGeometry(ewPtr->body.ew.tkwin, &textGeomType, client);
Tk_CreateEventHandler(ewPtr->body.ew.tkwin, StructureNotifyMask,
EmbWinStructureProc, client);
/*
* Special trick! Must enter into the hash table *after* calling
* Tk_ManageGeometry: if the window was already managed elsewhere
* in this text, the Tk_ManageGeometry call will cause the entry
* to be removed, which could potentially lose the new entry.
*/
hPtr = Tcl_CreateHashEntry(&textPtr->sharedTextPtr->windowTable,
Tk_PathName(ewPtr->body.ew.tkwin), &isNew);
Tcl_SetHashValue(hPtr, ewPtr);
}
}
return TCL_OK;
}
static int
ConfigureWinItem(
Tcl_Interp *interp, /* Used for error reporting. */
Tk_Canvas canvas, /* Canvas containing itemPtr. */
Tk_Item *itemPtr, /* Window item to reconfigure. */
int objc, /* Number of elements in objv. */
Tcl_Obj *const objv[], /* Arguments describing things to configure. */
int flags) /* Flags to pass to Tk_ConfigureWidget. */
{
WindowItem *winItemPtr = (WindowItem *) itemPtr;
Tk_Window oldWindow;
Tk_Window canvasTkwin;
oldWindow = winItemPtr->tkwin;
canvasTkwin = Tk_CanvasTkwin(canvas);
if (TCL_OK != Tk_ConfigureWidget(interp, canvasTkwin, configSpecs, objc,
(const char **) objv, (char *) winItemPtr, flags|TK_CONFIG_OBJS)) {
return TCL_ERROR;
}
/*
* A few of the options require additional processing.
*/
if (oldWindow != winItemPtr->tkwin) {
if (oldWindow != NULL) {
Tk_DeleteEventHandler(oldWindow, StructureNotifyMask,
WinItemStructureProc, winItemPtr);
Tk_ManageGeometry(oldWindow, NULL, NULL);
Tk_UnmaintainGeometry(oldWindow, canvasTkwin);
Tk_UnmapWindow(oldWindow);
}
if (winItemPtr->tkwin != NULL) {
Tk_Window ancestor, parent;
/*
* Make sure that the canvas is either the parent of the window
* associated with the item or a descendant of that parent. Also,
* don't allow a top-of-hierarchy window to be managed inside a
* canvas.
*/
parent = Tk_Parent(winItemPtr->tkwin);
for (ancestor = canvasTkwin ;; ancestor = Tk_Parent(ancestor)) {
if (ancestor == parent) {
break;
}
if (((Tk_FakeWin *) ancestor)->flags & TK_TOP_HIERARCHY) {
goto badWindow;
}
}
if (((Tk_FakeWin *) winItemPtr->tkwin)->flags & TK_TOP_HIERARCHY){
goto badWindow;
}
if (winItemPtr->tkwin == canvasTkwin) {
goto badWindow;
}
Tk_CreateEventHandler(winItemPtr->tkwin, StructureNotifyMask,
WinItemStructureProc, winItemPtr);
Tk_ManageGeometry(winItemPtr->tkwin, &canvasGeomType, winItemPtr);
}
}
if ((winItemPtr->tkwin != NULL)
&& (itemPtr->state == TK_STATE_HIDDEN)) {
if (canvasTkwin == Tk_Parent(winItemPtr->tkwin)) {
Tk_UnmapWindow(winItemPtr->tkwin);
} else {
Tk_UnmaintainGeometry(winItemPtr->tkwin, canvasTkwin);
}
}
ComputeWindowBbox(canvas, winItemPtr);
return TCL_OK;
badWindow:
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"can't use %s in a window item of this canvas",
Tk_PathName(winItemPtr->tkwin)));
Tcl_SetErrorCode(interp, "TK", "GEOMETRY", "HIERARCHY", NULL);
winItemPtr->tkwin = NULL;
return TCL_ERROR;
}
void
TkSetFocusWin(
TkWindow *winPtr, /* Window that is to be the new focus for its
* display and application. */
int force) /* If non-zero, set the X focus to this window
* even if the application doesn't currently
* have the X focus. */
{
ToplevelFocusInfo *tlFocusPtr;
DisplayFocusInfo *displayFocusPtr;
TkWindow *topLevelPtr;
int allMapped, serial;
displayFocusPtr = FindDisplayFocusInfo(winPtr->mainPtr, winPtr->dispPtr);
/*
* If force is set, we should make sure we grab the focus regardless of
* the current focus window since under Windows, we may need to take
* control away from another application.
*/
if (winPtr == displayFocusPtr->focusWinPtr && !force) {
return;
}
/*
* Find the top-level window for winPtr, then find (or create) a record
* for the top-level. Also see whether winPtr and all its ancestors are
* mapped.
*/
allMapped = 1;
for (topLevelPtr = winPtr; ; topLevelPtr = topLevelPtr->parentPtr) {
if (topLevelPtr == NULL) {
/*
* The window is being deleted. No point in worrying about giving
* it the focus.
*/
return;
}
if (!(topLevelPtr->flags & TK_MAPPED)) {
allMapped = 0;
}
if (topLevelPtr->flags & TK_TOP_HIERARCHY) {
break;
}
}
/*
* If the new focus window isn't mapped, then we can't focus on it (X will
* generate an error, for example). Instead, create an event handler that
* will set the focus to this window once it gets mapped. At the same
* time, delete any old handler that might be around; it's no longer
* relevant.
*/
if (displayFocusPtr->focusOnMapPtr != NULL) {
Tk_DeleteEventHandler((Tk_Window) displayFocusPtr->focusOnMapPtr,
StructureNotifyMask, FocusMapProc,
displayFocusPtr->focusOnMapPtr);
displayFocusPtr->focusOnMapPtr = NULL;
}
if (!allMapped) {
Tk_CreateEventHandler((Tk_Window) winPtr, VisibilityChangeMask,
FocusMapProc, winPtr);
displayFocusPtr->focusOnMapPtr = winPtr;
displayFocusPtr->forceFocus = force;
return;
}
for (tlFocusPtr = winPtr->mainPtr->tlFocusPtr; tlFocusPtr != NULL;
tlFocusPtr = tlFocusPtr->nextPtr) {
if (tlFocusPtr->topLevelPtr == topLevelPtr) {
break;
}
}
if (tlFocusPtr == NULL) {
tlFocusPtr = (ToplevelFocusInfo *) ckalloc(sizeof(ToplevelFocusInfo));
tlFocusPtr->topLevelPtr = topLevelPtr;
tlFocusPtr->nextPtr = winPtr->mainPtr->tlFocusPtr;
winPtr->mainPtr->tlFocusPtr = tlFocusPtr;
}
tlFocusPtr->focusWinPtr = winPtr;
/*
* Reset the window system's focus window and generate focus events, with
* two special cases:
*
* 1. If the application is embedded and doesn't currently have the focus,
* don't set the focus directly. Instead, see if the embedding code can
* claim the focus from the enclosing container.
* 2. Otherwise, if the application doesn't currently have the focus,
* don't change the window system's focus unless it was already in this
* application or "force" was specified.
*/
if ((topLevelPtr->flags & TK_EMBEDDED)
&& (displayFocusPtr->focusWinPtr == NULL)) {
TkpClaimFocus(topLevelPtr, force);
} else if ((displayFocusPtr->focusWinPtr != NULL) || force) {
/*
* Generate events to shift focus between Tk windows. We do this
* regardless of what TkpChangeFocus does with the real X focus so
* that Tk widgets track focus commands when there is no window
* manager. GenerateFocusEvents will set up a serial number marker so
* we discard focus events that are triggered by the ChangeFocus.
*/
serial = TkpChangeFocus(TkpGetWrapperWindow(topLevelPtr), force);
if (serial != 0) {
displayFocusPtr->focusSerial = serial;
}
GenerateFocusEvents(displayFocusPtr->focusWinPtr, winPtr);
displayFocusPtr->focusWinPtr = winPtr;
winPtr->dispPtr->focusPtr = winPtr;
}
}
