/*
* tkUnixEmbed.c --
*
* This file contains platform-specific procedures for UNIX to provide
* basic operations needed for application embedding (where one
* application can use as its main window an internal window from
* some other application).
*
* Copyright (c) 1996-1997 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* RCS: @(#) $Id: tkUnixEmbed.c,v 1.6 2002/08/05 04:30:41 dgp Exp $
*/
#include "tkInt.h"
#include "tkUnixInt.h"
/*
* One of the following structures exists for each container in this
* application. It keeps track of the container window and its
* associated embedded window.
*/
typedef struct Container {
Window parent; /* X's window id for the parent of
* the pair (the container). */
Window parentRoot; /* Id for the root window of parent's
* screen. */
TkWindow *parentPtr; /* Tk's information about the container,
* or NULL if the container isn't
* in this process. */
Window wrapper; /* X's window id for the wrapper
* window for the embedded window.
* Starts off as None, but gets
* filled in when the window is
* eventually created. */
TkWindow *embeddedPtr; /* Tk's information about the embedded
* window, or NULL if the embedded
* application isn't in this process.
* Note that this is *not* the
* same window as wrapper: wrapper is
* the parent of embeddedPtr. */
struct Container *nextPtr; /* Next in list of all containers in
* this process. */
} Container;
typedef struct ThreadSpecificData {
Container *firstContainerPtr; /* First in list of all containers
* managed by this process. */
} ThreadSpecificData;
static Tcl_ThreadDataKey dataKey;
/*
* Prototypes for static procedures defined in this file:
*/
static void ContainerEventProc _ANSI_ARGS_((
ClientData clientData, XEvent *eventPtr));
static void EmbeddedEventProc _ANSI_ARGS_((
ClientData clientData, XEvent *eventPtr));
static int EmbedErrorProc _ANSI_ARGS_((ClientData clientData,
XErrorEvent *errEventPtr));
static void EmbedFocusProc _ANSI_ARGS_((ClientData clientData,
XEvent *eventPtr));
static void EmbedGeometryRequest _ANSI_ARGS_((
Container * containerPtr, int width, int height));
static void EmbedSendConfigure _ANSI_ARGS_((
Container *containerPtr));
static void EmbedStructureProc _ANSI_ARGS_((ClientData clientData,
XEvent *eventPtr));
static void EmbedWindowDeleted _ANSI_ARGS_((TkWindow *winPtr));
/*
*----------------------------------------------------------------------
*
* TkpUseWindow --
*
* This procedure causes a Tk window to use a given X window as
* its parent window, rather than the root window for the screen.
* It is invoked by an embedded application to specify the window
* in which it is embedded.
*
* Results:
* The return value is normally TCL_OK. If an error occurs (such
* as string not being a valid window spec), then the return value
* is TCL_ERROR and an error message is left in the interp's result if
* interp is non-NULL.
*
* Side effects:
* Changes the colormap and other visual information to match that
* of the parent window given by "string".
*
*----------------------------------------------------------------------
*/
int
TkpUseWindow(interp, tkwin, string)
Tcl_Interp *interp; /* If not NULL, used for error reporting
* if string is bogus. */
Tk_Window tkwin; /* Tk window that does not yet have an
* associated X window. */
Tcl_Obj *string; /* String identifying an X window to use
* for tkwin; must be an integer value. */
{
TkWindow *winPtr = (TkWindow *) tkwin;
TkWindow *usePtr;
int id, anyError;
Window parent;
Tk_ErrorHandler handler;
Container *containerPtr;
XWindowAttributes parentAtts;
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
if (winPtr->window != None) {
panic("TkUseWindow: X window already assigned");
}
if (Tcl_GetIntFromObj(interp, string, &id) != TCL_OK) {
char *s = Tcl_GetString(string);
char *e = NULL;
id = strtoul(s,&e,0);
if (!e || *e)
return TCL_ERROR;
}
parent = (Window) id;
usePtr = (TkWindow *) Tk_IdToWindow(winPtr->display, parent);
if (usePtr != NULL) {
if (!(usePtr->flags & TK_CONTAINER)) {
Tcl_AppendResult(interp, "window \"", usePtr->pathName,
"\" doesn't have -container option set", (char *) NULL);
return TCL_ERROR;
}
}
/*
* Tk sets the window colormap to the screen default colormap in
* tkWindow.c:AllocWindow. This doesn't work well for embedded
* windows. So we override the colormap and visual settings to be
* the same as the parent window (which is in the container app).
*/
anyError = 0;
handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
EmbedErrorProc, (ClientData) &anyError);
if (!XGetWindowAttributes(winPtr->display, parent, &parentAtts)) {
anyError = 1;
}
XSync(winPtr->display, False);
Tk_DeleteErrorHandler(handler);
if (anyError) {
if (interp != NULL) {
Tcl_AppendResult(interp, "couldn't create child of window \"",
string, "\"", (char *) NULL);
}
return TCL_ERROR;
}
Tk_SetWindowVisual(tkwin, parentAtts.visual, parentAtts.depth,
parentAtts.colormap);
/*
* Create an event handler to clean up the Container structure when
* tkwin is eventually deleted.
*/
Tk_CreateEventHandler(tkwin, StructureNotifyMask, EmbeddedEventProc,
(ClientData) winPtr);
/*
* Save information about the container and the embedded window
* in a Container structure. If there is already an existing
* Container structure, it means that both container and embedded
* app. are in the same process.
*/
for (containerPtr = tsdPtr->firstContainerPtr; containerPtr != NULL;
containerPtr = containerPtr->nextPtr) {
if (containerPtr->parent == parent) {
winPtr->flags |= TK_BOTH_HALVES;
containerPtr->parentPtr->flags |= TK_BOTH_HALVES;
break;
}
}
if (containerPtr == NULL) {
containerPtr = (Container *) ckalloc(sizeof(Container));
containerPtr->parent = parent;
containerPtr->parentRoot = parentAtts.root;
containerPtr->parentPtr = NULL;
containerPtr->wrapper = None;
containerPtr->nextPtr = tsdPtr->firstContainerPtr;
tsdPtr->firstContainerPtr = containerPtr;
}
containerPtr->embeddedPtr = winPtr;
winPtr->flags |= TK_EMBEDDED;
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TkpMakeWindow --
*
* Create an actual window system window object based on the
* current attributes of the specified TkWindow.
*
* Results:
* Returns the handle to the new window, or None on failure.
*
* Side effects:
* Creates a new X window.
*
*----------------------------------------------------------------------
*/
Window
TkpMakeWindow(winPtr, parent)
TkWindow *winPtr; /* Tk's information about the window that
* is to be instantiated. */
Window parent; /* Window system token for the parent in
* which the window is to be created. */
{
Container *containerPtr;
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
if (winPtr->flags & TK_EMBEDDED) {
/*
* This window is embedded. Don't create the new window in the
* given parent; instead, create it as a child of the root window
* of the container's screen. The window will get reparented
* into a wrapper window later.
*/
for (containerPtr = tsdPtr->firstContainerPtr; ;
containerPtr = containerPtr->nextPtr) {
if (containerPtr == NULL) {
panic("TkMakeWindow couldn't find container for window");
}
if (containerPtr->embeddedPtr == winPtr) {
break;
}
}
parent = containerPtr->parentRoot;
}
#ifdef __PM__
return TkMakeWindow(winPtr, parent);
#else
return XCreateWindow(winPtr->display, parent, winPtr->changes.x,
winPtr->changes.y, (unsigned) winPtr->changes.width,
(unsigned) winPtr->changes.height,
(unsigned) winPtr->changes.border_width, winPtr->depth,
InputOutput, winPtr->visual, winPtr->dirtyAtts,
&winPtr->atts);
#endif
}
/*
*----------------------------------------------------------------------
*
* TkpMakeContainer --
*
* This procedure is called to indicate that a particular window
* will be a container for an embedded application. This changes
* certain aspects of the window's behavior, such as whether it
* will receive events anymore.
*
* Results:
* None.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
TkpMakeContainer(tkwin)
Tk_Window tkwin; /* Token for a window that is about to
* become a container. */
{
TkWindow *winPtr = (TkWindow *) tkwin;
Container *containerPtr;
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
/*
* Register the window as a container so that, for example, we can
* find out later if the embedded app. is in the same process.
*/
Tk_MakeWindowExist(tkwin);
containerPtr = (Container *) ckalloc(sizeof(Container));
containerPtr->parent = Tk_WindowId(tkwin);
containerPtr->parentRoot = RootWindowOfScreen(Tk_Screen(tkwin));
containerPtr->parentPtr = winPtr;
containerPtr->wrapper = None;
containerPtr->embeddedPtr = NULL;
containerPtr->nextPtr = tsdPtr->firstContainerPtr;
tsdPtr->firstContainerPtr = containerPtr;
winPtr->flags |= TK_CONTAINER;
/*
* Request SubstructureNotify events so that we can find out when
* the embedded application creates its window or attempts to
* resize it. Also watch Configure events on the container so that
* we can resize the child to match.
*/
winPtr->atts.event_mask |= SubstructureRedirectMask|SubstructureNotifyMask;
XSelectInput(winPtr->display, winPtr->window, winPtr->atts.event_mask);
Tk_CreateEventHandler(tkwin,
SubstructureNotifyMask|SubstructureRedirectMask,
ContainerEventProc, (ClientData) winPtr);
Tk_CreateEventHandler(tkwin, StructureNotifyMask, EmbedStructureProc,
(ClientData) containerPtr);
Tk_CreateEventHandler(tkwin, FocusChangeMask, EmbedFocusProc,
(ClientData) containerPtr);
}
/*
*----------------------------------------------------------------------
*
* EmbedErrorProc --
*
* This procedure is invoked if an error occurs while creating
* an embedded window.
*
* Results:
* Always returns 0 to indicate that the error has been properly
* handled.
*
* Side effects:
* The integer pointed to by the clientData argument is set to 1.
*
*----------------------------------------------------------------------
*/
static int
EmbedErrorProc(clientData, errEventPtr)
ClientData clientData; /* Points to integer to set. */
XErrorEvent *errEventPtr; /* Points to information about error
* (not used). */
{
int *iPtr = (int *) clientData;
*iPtr = 1;
return 0;
}
/*
*----------------------------------------------------------------------
*
* EmbeddedEventProc --
*
* This procedure is invoked by the Tk event dispatcher when various
* useful events are received for a window that is embedded in
* another application.
*
* Results:
* None.
*
* Side effects:
* Our internal state gets cleaned up when an embedded window is
* destroyed.
*
*----------------------------------------------------------------------
*/
static void
EmbeddedEventProc(clientData, eventPtr)
ClientData clientData; /* Token for container window. */
XEvent *eventPtr; /* ResizeRequest event. */
{
TkWindow *winPtr = (TkWindow *) clientData;
if (eventPtr->type == DestroyNotify) {
EmbedWindowDeleted(winPtr);
}
}
/*
*----------------------------------------------------------------------
*
* ContainerEventProc --
*
* This procedure is invoked by the Tk event dispatcher when various
* useful events are received for the children of a container
* window. It forwards relevant information, such as geometry
* requests, from the events into the container's application.
*
* Results:
* None.
*
* Side effects:
* Depends on the event. For example, when ConfigureRequest events
* occur, geometry information gets set for the container window.
*
*----------------------------------------------------------------------
*/
static void
ContainerEventProc(clientData, eventPtr)
ClientData clientData; /* Token for container window. */
XEvent *eventPtr; /* ResizeRequest event. */
{
TkWindow *winPtr = (TkWindow *) clientData;
Container *containerPtr;
Tk_ErrorHandler errHandler;
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
/*
* Ignore any X protocol errors that happen in this procedure
* (almost any operation could fail, for example, if the embedded
* application has deleted its window).
*/
errHandler = Tk_CreateErrorHandler(eventPtr->xfocus.display, -1,
-1, -1, (Tk_ErrorProc *) NULL, (ClientData) NULL);
/*
* Find the Container structure associated with the parent window.
*/
for (containerPtr = tsdPtr->firstContainerPtr;
containerPtr->parent != eventPtr->xmaprequest.parent;
containerPtr = containerPtr->nextPtr) {
if (containerPtr == NULL) {
panic("ContainerEventProc couldn't find Container record");
}
}
if (eventPtr->type == CreateNotify) {
/*
* A new child window has been created in the container. Record
* its id in the Container structure (if more than one child is
* created, just remember the last one and ignore the earlier
* ones). Also set the child's size to match the container.
*/
containerPtr->wrapper = eventPtr->xcreatewindow.window;
XMoveResizeWindow(eventPtr->xcreatewindow.display,
containerPtr->wrapper, 0, 0,
(unsigned int) Tk_Width(
(Tk_Window) containerPtr->parentPtr),
(unsigned int) Tk_Height(
(Tk_Window) containerPtr->parentPtr));
} else if (eventPtr->type == ConfigureRequest) {
if ((eventPtr->xconfigurerequest.x != 0)
|| (eventPtr->xconfigurerequest.y != 0)) {
/*
* The embedded application is trying to move itself, which
* isn't legal. At this point, the window hasn't actually
* moved, but we need to send it a ConfigureNotify event to
* let it know that its request has been denied. If the
* embedded application was also trying to resize itself, a
* ConfigureNotify will be sent by the geometry management
* code below, so we don't need to do anything. Otherwise,
* generate a synthetic event.
*/
if ((eventPtr->xconfigurerequest.width == winPtr->changes.width)
&& (eventPtr->xconfigurerequest.height
== winPtr->changes.height)) {
EmbedSendConfigure(containerPtr);
}
}
EmbedGeometryRequest(containerPtr,
eventPtr->xconfigurerequest.width,
eventPtr->xconfigurerequest.height);
} else if (eventPtr->type == MapRequest) {
/*
* The embedded application's map request was ignored and simply
* passed on to us, so we have to map the window for it to appear
* on the screen.
*/
XMapWindow(eventPtr->xmaprequest.display,
eventPtr->xmaprequest.window);
} else if (eventPtr->type == DestroyNotify) {
/*
* The embedded application is gone. Destroy the container window.
*/
Tk_DestroyWindow((Tk_Window) winPtr);
}
Tk_DeleteErrorHandler(errHandler);
}
/*
*----------------------------------------------------------------------
*
* EmbedStructureProc --
*
* This procedure is invoked by the Tk event dispatcher when
* a container window owned by this application gets resized
* (and also at several other times that we don't care about).
* This procedure reflects the size change in the embedded
* window that corresponds to the container.
*
* Results:
* None.
*
* Side effects:
* The embedded window gets resized to match the container.
*
*----------------------------------------------------------------------
*/
static void
EmbedStructureProc(clientData, eventPtr)
ClientData clientData; /* Token for container window. */
XEvent *eventPtr; /* ResizeRequest event. */
{
Container *containerPtr = (Container *) clientData;
Tk_ErrorHandler errHandler;
if (eventPtr->type == ConfigureNotify) {
if (containerPtr->wrapper != None) {
/*
* Ignore errors, since the embedded application could have
* deleted its window.
*/
errHandler = Tk_CreateErrorHandler(eventPtr->xfocus.display, -1,
-1, -1, (Tk_ErrorProc *) NULL, (ClientData) NULL);
XMoveResizeWindow(eventPtr->xconfigure.display,
containerPtr->wrapper, 0, 0,
(unsigned int) Tk_Width(
(Tk_Window) containerPtr->parentPtr),
(unsigned int) Tk_Height(
(Tk_Window) containerPtr->parentPtr));
Tk_DeleteErrorHandler(errHandler);
}
} else if (eventPtr->type == DestroyNotify) {
EmbedWindowDeleted(containerPtr->parentPtr);
}
}
/*
*----------------------------------------------------------------------
*
* EmbedFocusProc --
*
* This procedure is invoked by the Tk event dispatcher when
* FocusIn and FocusOut events occur for a container window owned
* by this application. It is responsible for moving the focus
* back and forth between a container application and an embedded
* application.
*
* Results:
* None.
*
* Side effects:
* The X focus may change.
*
*----------------------------------------------------------------------
*/
static void
EmbedFocusProc(clientData, eventPtr)
ClientData clientData; /* Token for container window. */
XEvent *eventPtr; /* ResizeRequest event. */
{
Container *containerPtr = (Container *) clientData;
Tk_ErrorHandler errHandler;
Display *display;
display = Tk_Display(containerPtr->parentPtr);
if (eventPtr->type == FocusIn) {
/*
* The focus just arrived at the container. Change the X focus
* to move it to the embedded application, if there is one.
* Ignore X errors that occur during this operation (it's
* possible that the new focus window isn't mapped).
*/
if (containerPtr->wrapper != None) {
errHandler = Tk_CreateErrorHandler(eventPtr->xfocus.display, -1,
-1, -1, (Tk_ErrorProc *) NULL, (ClientData) NULL);
XSetInputFocus(display, containerPtr->wrapper, RevertToParent,
CurrentTime);
Tk_DeleteErrorHandler(errHandler);
}
}
}
/*
*----------------------------------------------------------------------
*
* EmbedGeometryRequest --
*
* This procedure is invoked when an embedded application requests
* a particular size. It processes the request (which may or may
* not actually honor the request) and reflects the results back
* to the embedded application.
*
* Results:
* None.
*
* Side effects:
* If we deny the child's size change request, a Configure event
* is synthesized to let the child know how big it ought to be.
* Events get processed while we're waiting for the geometry
* managers to do their thing.
*
*----------------------------------------------------------------------
*/
static void
EmbedGeometryRequest(containerPtr, width, height)
Container *containerPtr; /* Information about the embedding. */
int width, height; /* Size that the child has requested. */
{
TkWindow *winPtr = containerPtr->parentPtr;
/*
* Forward the requested size into our geometry management hierarchy
* via the container window. We need to send a Configure event back
* to the embedded application if we decide not to honor its
* request; to make this happen, process all idle event handlers
* synchronously here (so that the geometry managers have had a
* chance to do whatever they want to do), and if the window's size
* didn't change then generate a configure event.
*/
Tk_GeometryRequest((Tk_Window) winPtr, width, height);
while (Tcl_DoOneEvent(TCL_IDLE_EVENTS)) {
/* Empty loop body. */
}
if ((winPtr->changes.width != width)
|| (winPtr->changes.height != height)) {
EmbedSendConfigure(containerPtr);
}
}
/*
*----------------------------------------------------------------------
*
* EmbedSendConfigure --
*
* This procedure synthesizes a ConfigureNotify event to notify an
* embedded application of its current size and location. This
* procedure is called when the embedded application made a
* geometry request that we did not grant, so that the embedded
* application knows that its geometry didn't change after all.
*
* Results:
* None.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
static void
EmbedSendConfigure(containerPtr)
Container *containerPtr; /* Information about the embedding. */
{
TkWindow *winPtr = containerPtr->parentPtr;
XEvent event;
event.xconfigure.type = ConfigureNotify;
event.xconfigure.serial =
LastKnownRequestProcessed(winPtr->display);
event.xconfigure.send_event = True;
event.xconfigure.display = winPtr->display;
event.xconfigure.event = containerPtr->wrapper;
event.xconfigure.window = containerPtr->wrapper;
event.xconfigure.x = 0;
event.xconfigure.y = 0;
event.xconfigure.width = winPtr->changes.width;
event.xconfigure.height = winPtr->changes.height;
event.xconfigure.above = None;
event.xconfigure.override_redirect = False;
/*
* Note: when sending the event below, the ButtonPressMask
* causes the event to be sent only to applications that have
* selected for ButtonPress events, which should be just the
* embedded application.
*/
XSendEvent(winPtr->display, containerPtr->wrapper, False,
0, &event);
/*
* The following needs to be done if the embedded window is
* not in the same application as the container window.
*/
if (containerPtr->embeddedPtr == NULL) {
XMoveResizeWindow(winPtr->display, containerPtr->wrapper, 0, 0,
(unsigned int) winPtr->changes.width,
(unsigned int) winPtr->changes.height);
}
}
/*
*----------------------------------------------------------------------
*
* TkpGetOtherWindow --
*
* If both the container and embedded window are in the same
* process, this procedure will return either one, given the other.
*
* Results:
* If winPtr is a container, the return value is the token for the
* embedded window, and vice versa. If the "other" window isn't in
* this process, NULL is returned.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
TkWindow *
TkpGetOtherWindow(winPtr)
TkWindow *winPtr; /* Tk's structure for a container or
* embedded window. */
{
Container *containerPtr;
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
for (containerPtr = tsdPtr->firstContainerPtr;
containerPtr != NULL;
containerPtr = containerPtr->nextPtr) {
if (containerPtr->embeddedPtr == winPtr) {
return containerPtr->parentPtr;
} else if (containerPtr->parentPtr == winPtr) {
return containerPtr->embeddedPtr;
}
}
panic("TkpGetOtherWindow couldn't find window");
return NULL;
}
/*
*----------------------------------------------------------------------
*
* TkpRedirectKeyEvent --
*
* This procedure is invoked when a key press or release event
* arrives for an application that does not believe it owns the
* input focus. This can happen because of embedding; for example,
* X can send an event to an embedded application when the real
* focus window is in the container application and is an ancestor
* of the container. This procedure's job is to forward the event
* back to the application where it really belongs.
*
* Results:
* None.
*
* Side effects:
* The event may get sent to a different application.
*
*----------------------------------------------------------------------
*/
void
TkpRedirectKeyEvent(winPtr, eventPtr)
TkWindow *winPtr; /* Window to which the event was originally
* reported. */
XEvent *eventPtr; /* X event to redirect (should be KeyPress
* or KeyRelease). */
{
Container *containerPtr;
Window saved;
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
/*
* First, find the top-level window corresponding to winPtr.
*/
while (1) {
if (winPtr == NULL) {
/*
* This window is being deleted. This is too confusing a
* case to handle so discard the event.
*/
return;
}
if (winPtr->flags & TK_TOP_HIERARCHY) {
break;
}
winPtr = winPtr->parentPtr;
}
if (winPtr->flags & TK_EMBEDDED) {
/*
* This application is embedded. If we got a key event without
* officially having the focus, it means that the focus is
* really in the container, but the mouse was over the embedded
* application. Send the event back to the container.
*/
for (containerPtr = tsdPtr->firstContainerPtr;
containerPtr->embeddedPtr != winPtr;
containerPtr = containerPtr->nextPtr) {
/* Empty loop body. */
}
saved = eventPtr->xkey.window;
eventPtr->xkey.window = containerPtr->parent;
XSendEvent(eventPtr->xkey.display, eventPtr->xkey.window, False,
KeyPressMask|KeyReleaseMask, eventPtr);
eventPtr->xkey.window = saved;
}
}
/*
*----------------------------------------------------------------------
*
* TkpClaimFocus --
*
* This procedure is invoked when someone asks or the input focus
* to be put on a window in an embedded application, but the
* application doesn't currently have the focus. It requests the
* input focus from the container application.
*
* Results:
* None.
*
* Side effects:
* The input focus may change.
*
*----------------------------------------------------------------------
*/
void
TkpClaimFocus(topLevelPtr, force)
TkWindow *topLevelPtr; /* Top-level window containing desired
* focus window; should be embedded. */
int force; /* One means that the container should
* claim the focus if it doesn't
* currently have it. */
{
XEvent event;
Container *containerPtr;
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
if (!(topLevelPtr->flags & TK_EMBEDDED)) {
return;
}
for (containerPtr = tsdPtr->firstContainerPtr;
containerPtr->embeddedPtr != topLevelPtr;
containerPtr = containerPtr->nextPtr) {
/* Empty loop body. */
}
event.xfocus.type = FocusIn;
event.xfocus.serial = LastKnownRequestProcessed(topLevelPtr->display);
event.xfocus.send_event = 1;
event.xfocus.display = topLevelPtr->display;
event.xfocus.window = containerPtr->parent;
event.xfocus.mode = EMBEDDED_APP_WANTS_FOCUS;
event.xfocus.detail = force;
XSendEvent(event.xfocus.display, event.xfocus.window, False, 0, &event);
}
#if 0
/*
*----------------------------------------------------------------------
*
* TkpTestembedCmd --
*
* This procedure implements the "testembed" command. It returns
* some or all of the information in the list pointed to by
* firstContainerPtr.
*
* Results:
* A standard Tcl result.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
TkpTestembedCmd(clientData, interp, argc, argv)
ClientData clientData; /* Main window for application. */
Tcl_Interp *interp; /* Current interpreter. */
int argc; /* Number of arguments. */
CONST char **argv; /* Argument strings. */
{
int all;
Container *containerPtr;
Tcl_DString dString;
char buffer[50];
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
if ((argc > 1) && (strcmp(argv[1], "all") == 0)) {
all = 1;
} else {
all = 0;
}
Tcl_DStringInit(&dString);
for (containerPtr = tsdPtr->firstContainerPtr; containerPtr != NULL;
containerPtr = containerPtr->nextPtr) {
Tcl_DStringStartSublist(&dString);
if (containerPtr->parent == None) {
Tcl_DStringAppendElement(&dString, "");
} else {
if (all) {
sprintf(buffer, "0x%x", (int) containerPtr->parent);
Tcl_DStringAppendElement(&dString, buffer);
} else {
Tcl_DStringAppendElement(&dString, "XXX");
}
}
if (containerPtr->parentPtr == NULL) {
Tcl_DStringAppendElement(&dString, "");
} else {
Tcl_DStringAppendElement(&dString,
containerPtr->parentPtr->pathName);
}
if (containerPtr->wrapper == None) {
Tcl_DStringAppendElement(&dString, "");
} else {
if (all) {
sprintf(buffer, "0x%x", (int) containerPtr->wrapper);
Tcl_DStringAppendElement(&dString, buffer);
} else {
Tcl_DStringAppendElement(&dString, "XXX");
}
}
if (containerPtr->embeddedPtr == NULL) {
Tcl_DStringAppendElement(&dString, "");
} else {
Tcl_DStringAppendElement(&dString,
containerPtr->embeddedPtr->pathName);
}
Tcl_DStringEndSublist(&dString);
}
Tcl_DStringResult(interp, &dString);
return TCL_OK;
}
#endif
/*
*----------------------------------------------------------------------
*
* EmbedWindowDeleted --
*
* This procedure is invoked when a window involved in embedding
* (as either the container or the embedded application) is
* destroyed. It cleans up the Container structure for the window.
*
* Results:
* None.
*
* Side effects:
* A Container structure may be freed.
*
*----------------------------------------------------------------------
*/
static void
EmbedWindowDeleted(winPtr)
TkWindow *winPtr; /* Tk's information about window that
* was deleted. */
{
Container *containerPtr, *prevPtr;
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
/*
* Find the Container structure for this window work. Delete the
* information about the embedded application and free the container's
* record.
*/
prevPtr = NULL;
containerPtr = tsdPtr->firstContainerPtr;
while (1) {
if (containerPtr->embeddedPtr == winPtr) {
containerPtr->wrapper = None;
containerPtr->embeddedPtr = NULL;
break;
}
if (containerPtr->parentPtr == winPtr) {
containerPtr->parentPtr = NULL;
break;
}
prevPtr = containerPtr;
containerPtr = containerPtr->nextPtr;
}
if ((containerPtr->embeddedPtr == NULL)
&& (containerPtr->parentPtr == NULL)) {
if (prevPtr == NULL) {
tsdPtr->firstContainerPtr = containerPtr->nextPtr;
} else {
prevPtr->nextPtr = containerPtr->nextPtr;
}
ckfree((char *) containerPtr);
}
}
/*
*----------------------------------------------------------------------
*
* TkUnixContainerId --
*
* Given an embedded window, this procedure returns the X window
* identifier for the associated container window.
*
* Results:
* The return value is the X window identifier for winPtr's
* container window.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Window
TkUnixContainerId(winPtr)
TkWindow *winPtr; /* Tk's structure for an embedded window. */
{
Container *containerPtr;
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
for (containerPtr = tsdPtr->firstContainerPtr;
containerPtr != NULL; containerPtr = containerPtr->nextPtr) {
if (containerPtr->embeddedPtr == winPtr) {
return containerPtr->parent;
}
}
panic("TkUnixContainerId couldn't find window");
return None;
}