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1214 lines (1105 loc) · 35.5 KB
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/*
* tkUnixEmbed.c --
*
* This file contains platform-specific functions 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). Also includes code to support busy windows.
*
* Copyright © 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.
*/
#include "tkUnixInt.h"
#include "tkBusy.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 {
Container *firstContainerPtr;
/* First in list of all containers managed by
* this process. */
} ThreadSpecificData;
static Tcl_ThreadDataKey dataKey;
/*
* Prototypes for static functions defined in this file:
*/
static void ContainerEventProc(void *clientData,
XEvent *eventPtr);
static void EmbeddedEventProc(void *clientData,
XEvent *eventPtr);
static int EmbedErrorProc(void *clientData,
XErrorEvent *errEventPtr);
static void EmbedFocusProc(void *clientData,
XEvent *eventPtr);
static void EmbedGeometryRequest(Container *containerPtr,
int width, int height);
static void EmbedSendConfigure(Container *containerPtr);
static void EmbedStructureProc(void *clientData,
XEvent *eventPtr);
static void EmbedWindowDeleted(TkWindow *winPtr);
/*
*----------------------------------------------------------------------
*
* Tk_UseWindow --
*
* This function 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
Tk_UseWindow(
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. */
const char *string) /* String identifying an X window to use for
* tkwin; must be an integer value. */
{
TkWindow *winPtr = (TkWindow *) tkwin;
TkWindow *usePtr;
int anyError;
Window parent;
Tk_ErrorHandler handler;
Container *containerPtr;
XWindowAttributes parentAtts;
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
if (winPtr->window != None) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"can't modify container after widget is created", TCL_INDEX_NONE));
Tcl_SetErrorCode(interp, "TK", "EMBED", "POST_CREATE", (char *)NULL);
return TCL_ERROR;
}
if (TkpScanWindowId(interp, string, &parent) != TCL_OK) {
return TCL_ERROR;
}
usePtr = (TkWindow *) Tk_IdToWindow(winPtr->display, parent);
if (usePtr != NULL && !(usePtr->flags & TK_CONTAINER)) {
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"window \"%s\" doesn't have -container option set",
usePtr->pathName));
Tcl_SetErrorCode(interp, "TK", "EMBED", "CONTAINER", (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, &anyError);
if (!XGetWindowAttributes(winPtr->display, parent, &parentAtts)) {
anyError = 1;
}
XSync(winPtr->display, False);
Tk_DeleteErrorHandler(handler);
if (anyError) {
if (interp != NULL) {
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"couldn't create child of window \"%s\"", string));
Tcl_SetErrorCode(interp, "TK", "EMBED", "NO_TARGET", (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,
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;
}
/*
*----------------------------------------------------------------------
*
* Tk_MakeWindow --
*
* 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
Tk_MakeWindow(
Tk_Window tkwin, /* 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;
TkWindow *winPtr = (TkWindow *) tkwin;
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) {
Tcl_Panic("TkMakeWindow couldn't find container for window");
}
if (containerPtr->embeddedPtr == winPtr) {
break;
}
}
parent = containerPtr->parentRoot;
}
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);
}
/*
*----------------------------------------------------------------------
*
* Tk_MakeContainer --
*
* This function 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
Tk_MakeContainer(
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, winPtr);
Tk_CreateEventHandler(tkwin, StructureNotifyMask, EmbedStructureProc,
containerPtr);
Tk_CreateEventHandler(tkwin, FocusChangeMask, EmbedFocusProc,
containerPtr);
}
/*
*----------------------------------------------------------------------
*
* EmbedErrorProc --
*
* This function 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(
void *clientData, /* Points to integer to set. */
XErrorEvent *errEventPtr) /* Points to information about error (not
* used). */
{
int *iPtr = (int *)clientData;
(void)errEventPtr;
*iPtr = 1;
return 0;
}
/*
*----------------------------------------------------------------------
*
* EmbeddedEventProc --
*
* This function 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(
void *clientData, /* Token for container window. */
XEvent *eventPtr) /* ResizeRequest event. */
{
TkWindow *winPtr = (TkWindow *)clientData;
if (eventPtr->type == DestroyNotify) {
EmbedWindowDeleted(winPtr);
}
}
/*
*----------------------------------------------------------------------
*
* ContainerEventProc --
*
* This function 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(
void *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 function (almost any
* operation could fail, for example, if the embedded application has
* deleted its window).
*/
errHandler = Tk_CreateErrorHandler(eventPtr->xfocus.display, -1,
-1, -1, NULL, 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) {
Tcl_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) Tk_Width((Tk_Window) containerPtr->parentPtr),
(unsigned) 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 function 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 function 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(
void *clientData, /* Token for container window. */
XEvent *eventPtr) /* ResizeRequest event. */
{
Container *containerPtr = (Container *)clientData;
Tk_ErrorHandler errHandler;
if (eventPtr->type == ConfigureNotify) {
/*
* Send a ConfigureNotify to the embedded application.
*/
if (containerPtr->embeddedPtr != NULL) {
TkDoConfigureNotify(containerPtr->embeddedPtr);
}
if (containerPtr->wrapper != None) {
/*
* Ignore errors, since the embedded application could have
* deleted its window.
*/
errHandler = Tk_CreateErrorHandler(eventPtr->xfocus.display, -1,
-1, -1, NULL, NULL);
XMoveResizeWindow(eventPtr->xconfigure.display,
containerPtr->wrapper, 0, 0,
(unsigned) Tk_Width((Tk_Window) containerPtr->parentPtr),
(unsigned) Tk_Height((Tk_Window) containerPtr->parentPtr));
Tk_DeleteErrorHandler(errHandler);
}
} else if (eventPtr->type == DestroyNotify) {
EmbedWindowDeleted(containerPtr->parentPtr);
}
}
/*
*----------------------------------------------------------------------
*
* EmbedFocusProc --
*
* This function 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(
void *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, NULL, NULL);
XSetInputFocus(display, containerPtr->wrapper, RevertToParent,
CurrentTime);
Tk_DeleteErrorHandler(errHandler);
}
}
}
/*
*----------------------------------------------------------------------
*
* EmbedGeometryRequest --
*
* This function 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(
Container *containerPtr, /* Information about the embedding. */
int width, int 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 function synthesizes a ConfigureNotify event to notify an
* embedded application of its current size and location. This function
* 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(
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) winPtr->changes.width,
(unsigned) winPtr->changes.height);
}
}
/*
*----------------------------------------------------------------------
*
* Tk_GetOtherWindow --
*
* If both the container and embedded window are in the same process,
* this function will return either one, given the other.
*
* Results:
* If tkwin 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.
*
*----------------------------------------------------------------------
*/
Tk_Window
Tk_GetOtherWindow(
Tk_Window tkwin) /* 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 ((Tk_Window)containerPtr->embeddedPtr == tkwin) {
return (Tk_Window)containerPtr->parentPtr;
} else if ((Tk_Window)containerPtr->parentPtr == tkwin) {
return (Tk_Window)containerPtr->embeddedPtr;
}
}
return NULL;
}
/*
*----------------------------------------------------------------------
*
* TkpRedirectKeyEvent --
*
* This function 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 function'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(
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 function 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(
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);
}
/*
*----------------------------------------------------------------------
*
* TkpTestembedCmd --
*
* This function 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(
void *dummy, /* Main window for application. */
Tcl_Interp *interp, /* Current interpreter. */
Tcl_Size objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument strings. */
{
int all;
Container *containerPtr;
Tcl_DString dString;
char buffer[50];
Tcl_Interp *embeddedInterp = NULL, *parentInterp = NULL;
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
(void)dummy;
if ((objc > 1) && (strcmp(Tcl_GetString(objv[1]), "all") == 0)) {
all = 1;
} else {
all = 0;
}
Tcl_DStringInit(&dString);
for (containerPtr = tsdPtr->firstContainerPtr; containerPtr != NULL;
containerPtr = containerPtr->nextPtr) {
if (containerPtr->embeddedPtr != NULL) {
embeddedInterp = containerPtr->embeddedPtr->mainPtr->interp;
}
if (containerPtr->parentPtr != NULL) {
parentInterp = containerPtr->parentPtr->mainPtr->interp;
}
if (embeddedInterp != interp && parentInterp != interp) {
continue;
}
Tcl_DStringStartSublist(&dString);
/* Parent id */
if (containerPtr->parent == None) {
Tcl_DStringAppendElement(&dString, "");
} else if (all) {
snprintf(buffer, sizeof(buffer), "0x%" TCL_Z_MODIFIER "x", (size_t) containerPtr->parent);
Tcl_DStringAppendElement(&dString, buffer);
} else {
Tcl_DStringAppendElement(&dString, "XXX");
}
/* Parent pathName */
if (containerPtr->parentPtr == NULL ||
parentInterp != interp) {
Tcl_DStringAppendElement(&dString, "");
} else {
Tcl_DStringAppendElement(&dString,
containerPtr->parentPtr->pathName);
}
/* Wrapper */
if (containerPtr->wrapper == None) {
Tcl_DStringAppendElement(&dString, "");
} else if (all) {
snprintf(buffer, sizeof(buffer), "0x%" TCL_Z_MODIFIER "x", (size_t) containerPtr->wrapper);
Tcl_DStringAppendElement(&dString, buffer);
} else {
Tcl_DStringAppendElement(&dString, "XXX");
}
/* Embedded window pathName */
if (containerPtr->embeddedPtr == NULL ||
embeddedInterp != interp) {
Tcl_DStringAppendElement(&dString, "");
} else {
Tcl_DStringAppendElement(&dString,
containerPtr->embeddedPtr->pathName);
}
Tcl_DStringEndSublist(&dString);
}
Tcl_DStringResult(interp, &dString);
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* EmbedWindowDeleted --
*
* This function 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(
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 == NULL) return;
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) {