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dashley |
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/* $Header$ */
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dashley |
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/*
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* tkWinEmbed.c --
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*
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* This file contains platform specific procedures for Windows platforms
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* to provide basic operations needed for application embedding (where
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* one application can use as its main window an internal window from
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* another application).
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*
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* Copyright (c) 1996-1997 Sun Microsystems, Inc.
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*
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* See the file "license.terms" for information on usage and redistribution
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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*
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* RCS: @(#) $Id: tkwinembed.c,v 1.1.1.1 2001/06/13 05:13:10 dtashley Exp $
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*/
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#include "tkWinInt.h"
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/*
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* One of the following structures exists for each container in this
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* application. It keeps track of the container window and its
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* associated embedded window.
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*/
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typedef struct Container {
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HWND parentHWnd; /* Windows HWND to the parent window */
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TkWindow *parentPtr; /* Tk's information about the container
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* or NULL if the container isn't
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* in this process. */
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HWND embeddedHWnd; /* Windows HWND to the embedded window
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*/
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TkWindow *embeddedPtr; /* Tk's information about the embedded
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* window, or NULL if the
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* embedded application isn't in
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* this process. */
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struct Container *nextPtr; /* Next in list of all containers in
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* this process. */
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} Container;
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typedef struct ThreadSpecificData {
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Container *firstContainerPtr; /* First in list of all containers
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* managed by this process. */
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} ThreadSpecificData;
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static Tcl_ThreadDataKey dataKey;
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static void CleanupContainerList _ANSI_ARGS_((
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ClientData clientData));
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static void ContainerEventProc _ANSI_ARGS_((ClientData clientData,
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XEvent *eventPtr));
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static void EmbeddedEventProc _ANSI_ARGS_((
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ClientData clientData, XEvent *eventPtr));
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static void EmbedGeometryRequest _ANSI_ARGS_((
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Container*containerPtr, int width, int height));
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static void EmbedWindowDeleted _ANSI_ARGS_((TkWindow *winPtr));
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/*
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*----------------------------------------------------------------------
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*
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* CleanupContainerList --
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*
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* Finalizes the list of containers.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Releases memory occupied by containers of embedded windows.
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*
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*----------------------------------------------------------------------
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*/
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/* ARGSUSED */
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static void
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CleanupContainerList(clientData)
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ClientData clientData;
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{
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Container *nextPtr;
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ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
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Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
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for (;
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tsdPtr->firstContainerPtr != (Container *) NULL;
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tsdPtr->firstContainerPtr = nextPtr) {
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nextPtr = tsdPtr->firstContainerPtr->nextPtr;
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ckfree((char *) tsdPtr->firstContainerPtr);
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}
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tsdPtr->firstContainerPtr = (Container *) NULL;
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}
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/*
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*----------------------------------------------------------------------
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*
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* TkpTestembedCmd --
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*
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* Test command for the embedding facility.
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*
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* Results:
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* Always returns TCL_OK.
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*
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* Side effects:
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* Currently it does not do anything.
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*
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*----------------------------------------------------------------------
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*/
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/* ARGSUSED */
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int
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TkpTestembedCmd(clientData, interp, argc, argv)
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ClientData clientData;
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Tcl_Interp *interp;
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int argc;
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char **argv;
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{
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return TCL_OK;
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}
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/*
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*----------------------------------------------------------------------
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*
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* TkpUseWindow --
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*
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* This procedure causes a Tk window to use a given Windows handle
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* for a window as its underlying window, rather than a new Windows
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* window being created automatically. It is invoked by an embedded
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* application to specify the window in which the application is
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* embedded.
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*
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* Results:
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* The return value is normally TCL_OK. If an error occurred (such as
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* if the argument does not identify a legal Windows window handle),
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* the return value is TCL_ERROR and an error message is left in the
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* the interp's result if interp is not NULL.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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int
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TkpUseWindow(interp, tkwin, string)
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Tcl_Interp *interp; /* If not NULL, used for error reporting
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* if string is bogus. */
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Tk_Window tkwin; /* Tk window that does not yet have an
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* associated X window. */
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char *string; /* String identifying an X window to use
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* for tkwin; must be an integer value. */
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{
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TkWindow *winPtr = (TkWindow *) tkwin;
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int id;
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HWND hwnd;
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Container *containerPtr;
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ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
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Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
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if (winPtr->window != None) {
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panic("TkpUseWindow: Already assigned a window");
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}
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if (Tcl_GetInt(interp, string, &id) != TCL_OK) {
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return TCL_ERROR;
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}
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hwnd = (HWND) id;
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/*
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* Check if the window is a valid handle. If it is invalid, return
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* TCL_ERROR and potentially leave an error message in the interp's
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* result.
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*/
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if (!IsWindow(hwnd)) {
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if (interp != (Tcl_Interp *) NULL) {
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Tcl_AppendResult(interp, "window \"", string,
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"\" doesn't exist", (char *) NULL);
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}
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return TCL_ERROR;
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}
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/*
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* Store the parent window in the platform private data slot so
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* TkWmMapWindow can use it when creating the wrapper window.
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*/
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winPtr->privatePtr = (struct TkWindowPrivate*) hwnd;
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/*
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* Create an event handler to clean up the Container structure when
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* tkwin is eventually deleted.
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*/
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Tk_CreateEventHandler(tkwin, StructureNotifyMask, EmbeddedEventProc,
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(ClientData) winPtr);
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/*
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* If this is the first container, register an exit handler so that
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* things will get cleaned up at finalization.
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*/
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if (tsdPtr->firstContainerPtr == (Container *) NULL) {
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Tcl_CreateExitHandler(CleanupContainerList, (ClientData) NULL);
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}
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/*
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* Save information about the container and the embedded window
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* in a Container structure. If there is already an existing
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* Container structure, it means that both container and embedded
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* app. are in the same process.
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*/
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for (containerPtr = tsdPtr->firstContainerPtr;
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containerPtr != NULL; containerPtr = containerPtr->nextPtr) {
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if (containerPtr->parentHWnd == hwnd) {
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winPtr->flags |= TK_BOTH_HALVES;
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containerPtr->parentPtr->flags |= TK_BOTH_HALVES;
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break;
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}
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}
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if (containerPtr == NULL) {
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containerPtr = (Container *) ckalloc(sizeof(Container));
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containerPtr->parentPtr = NULL;
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containerPtr->parentHWnd = hwnd;
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containerPtr->nextPtr = tsdPtr->firstContainerPtr;
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tsdPtr->firstContainerPtr = containerPtr;
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}
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/*
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* embeddedHWnd is not created yet. It will be created by TkWmMapWindow(),
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* which will send a TK_ATTACHWINDOW to the container window.
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* TkWinEmbeddedEventProc will process this message and set the embeddedHWnd
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* variable
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*/
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containerPtr->embeddedPtr = winPtr;
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containerPtr->embeddedHWnd = NULL;
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winPtr->flags |= TK_EMBEDDED;
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winPtr->flags &= (~(TK_MAPPED));
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return TCL_OK;
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}
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/*
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*----------------------------------------------------------------------
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*
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* TkpMakeContainer --
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*
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* This procedure is called to indicate that a particular window will
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* be a container for an embedded application. This changes certain
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* aspects of the window's behavior, such as whether it will receive
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* events anymore.
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*
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* Results:
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* None.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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void
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TkpMakeContainer(tkwin)
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Tk_Window tkwin;
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{
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TkWindow *winPtr = (TkWindow *) tkwin;
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Container *containerPtr;
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ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
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Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
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/*
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* If this is the first container, register an exit handler so that
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* things will get cleaned up at finalization.
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*/
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if (tsdPtr->firstContainerPtr == (Container *) NULL) {
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Tcl_CreateExitHandler(CleanupContainerList, (ClientData) NULL);
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}
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| 281 |
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/*
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* Register the window as a container so that, for example, we can
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* find out later if the embedded app. is in the same process.
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*/
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| 286 |
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| 287 |
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Tk_MakeWindowExist(tkwin);
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containerPtr = (Container *) ckalloc(sizeof(Container));
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containerPtr->parentPtr = winPtr;
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containerPtr->parentHWnd = Tk_GetHWND(Tk_WindowId(tkwin));
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containerPtr->embeddedHWnd = NULL;
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containerPtr->embeddedPtr = NULL;
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| 293 |
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containerPtr->nextPtr = tsdPtr->firstContainerPtr;
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| 294 |
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tsdPtr->firstContainerPtr = containerPtr;
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| 295 |
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winPtr->flags |= TK_CONTAINER;
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| 296 |
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| 297 |
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/*
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| 298 |
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* Unlike in tkUnixEmbed.c, we don't make any requests for events
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| 299 |
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* in the embedded window here. Now we just allow the embedding
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| 300 |
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* of another TK application into TK windows. When the embedded
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| 301 |
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* window makes a request, that will be done by sending to the
|
| 302 |
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* container window a WM_USER message, which will be intercepted
|
| 303 |
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* by TkWinContainerProc.
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| 304 |
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*
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| 305 |
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* We need to get structure events of the container itself, though.
|
| 306 |
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*/
|
| 307 |
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| 308 |
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Tk_CreateEventHandler(tkwin, StructureNotifyMask,
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| 309 |
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ContainerEventProc, (ClientData) containerPtr);
|
| 310 |
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}
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| 311 |
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| 312 |
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/*
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| 313 |
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*----------------------------------------------------------------------
|
| 314 |
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*
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| 315 |
|
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* EmbeddedEventProc --
|
| 316 |
|
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*
|
| 317 |
|
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* This procedure is invoked by the Tk event dispatcher when various
|
| 318 |
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* useful events are received for a window that is embedded in
|
| 319 |
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* another application.
|
| 320 |
|
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*
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| 321 |
|
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* Results:
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| 322 |
|
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* None.
|
| 323 |
|
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*
|
| 324 |
|
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* Side effects:
|
| 325 |
|
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* Our internal state gets cleaned up when an embedded window is
|
| 326 |
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* destroyed.
|
| 327 |
|
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*
|
| 328 |
|
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*----------------------------------------------------------------------
|
| 329 |
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*/
|
| 330 |
|
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|
| 331 |
|
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static void
|
| 332 |
|
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EmbeddedEventProc(clientData, eventPtr)
|
| 333 |
|
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ClientData clientData; /* Token for container window. */
|
| 334 |
|
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XEvent *eventPtr; /* ResizeRequest event. */
|
| 335 |
|
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{
|
| 336 |
|
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TkWindow *winPtr = (TkWindow *) clientData;
|
| 337 |
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|
| 338 |
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if (eventPtr->type == DestroyNotify) {
|
| 339 |
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EmbedWindowDeleted(winPtr);
|
| 340 |
|
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}
|
| 341 |
|
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}
|
| 342 |
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|
| 343 |
|
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/*
|
| 344 |
|
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*----------------------------------------------------------------------
|
| 345 |
|
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*
|
| 346 |
|
|
* TkWinEmbeddedEventProc --
|
| 347 |
|
|
*
|
| 348 |
|
|
* This procedure is invoked by the Tk event dispatcher when
|
| 349 |
|
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* various useful events are received for the *children* of a
|
| 350 |
|
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* container window. It forwards relevant information, such as
|
| 351 |
|
|
* geometry requests, from the events into the container's
|
| 352 |
|
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* application.
|
| 353 |
|
|
*
|
| 354 |
|
|
* Results:
|
| 355 |
|
|
* None.
|
| 356 |
|
|
*
|
| 357 |
|
|
* Side effects:
|
| 358 |
|
|
* Depends on the event. For example, when ConfigureRequest events
|
| 359 |
|
|
* occur, geometry information gets set for the container window.
|
| 360 |
|
|
*
|
| 361 |
|
|
*----------------------------------------------------------------------
|
| 362 |
|
|
*/
|
| 363 |
|
|
|
| 364 |
|
|
LRESULT
|
| 365 |
|
|
TkWinEmbeddedEventProc(hwnd, message, wParam, lParam)
|
| 366 |
|
|
HWND hwnd;
|
| 367 |
|
|
UINT message;
|
| 368 |
|
|
WPARAM wParam;
|
| 369 |
|
|
LPARAM lParam;
|
| 370 |
|
|
{
|
| 371 |
|
|
Container *containerPtr;
|
| 372 |
|
|
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
|
| 373 |
|
|
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
|
| 374 |
|
|
|
| 375 |
|
|
/*
|
| 376 |
|
|
* Find the Container structure associated with the parent window.
|
| 377 |
|
|
*/
|
| 378 |
|
|
|
| 379 |
|
|
for (containerPtr = tsdPtr->firstContainerPtr;
|
| 380 |
|
|
containerPtr->parentHWnd != hwnd;
|
| 381 |
|
|
containerPtr = containerPtr->nextPtr) {
|
| 382 |
|
|
if (containerPtr == NULL) {
|
| 383 |
|
|
panic("TkWinContainerProc couldn't find Container record");
|
| 384 |
|
|
}
|
| 385 |
|
|
}
|
| 386 |
|
|
|
| 387 |
|
|
switch (message) {
|
| 388 |
|
|
case TK_ATTACHWINDOW:
|
| 389 |
|
|
/* An embedded window (either from this application or from
|
| 390 |
|
|
* another application) is trying to attach to this container.
|
| 391 |
|
|
* We attach it only if this container is not yet containing any
|
| 392 |
|
|
* window.
|
| 393 |
|
|
*/
|
| 394 |
|
|
if (containerPtr->embeddedHWnd == NULL) {
|
| 395 |
|
|
containerPtr->embeddedHWnd = (HWND)wParam;
|
| 396 |
|
|
} else {
|
| 397 |
|
|
return 0;
|
| 398 |
|
|
}
|
| 399 |
|
|
|
| 400 |
|
|
break;
|
| 401 |
|
|
case TK_GEOMETRYREQ:
|
| 402 |
|
|
EmbedGeometryRequest(containerPtr, wParam, lParam);
|
| 403 |
|
|
break;
|
| 404 |
|
|
}
|
| 405 |
|
|
return 1;
|
| 406 |
|
|
}
|
| 407 |
|
|
|
| 408 |
|
|
/*
|
| 409 |
|
|
*----------------------------------------------------------------------
|
| 410 |
|
|
*
|
| 411 |
|
|
* EmbedGeometryRequest --
|
| 412 |
|
|
*
|
| 413 |
|
|
* This procedure is invoked when an embedded application requests
|
| 414 |
|
|
* a particular size. It processes the request (which may or may
|
| 415 |
|
|
* not actually resize the window) and reflects the results back
|
| 416 |
|
|
* to the embedded application.
|
| 417 |
|
|
*
|
| 418 |
|
|
* Results:
|
| 419 |
|
|
* None.
|
| 420 |
|
|
*
|
| 421 |
|
|
* Side effects:
|
| 422 |
|
|
* If we deny the child's size change request, a Configure event
|
| 423 |
|
|
* is synthesized to let the child know that the size is the same
|
| 424 |
|
|
* as it used to be. Events get processed while we're waiting for
|
| 425 |
|
|
* the geometry managers to do their thing.
|
| 426 |
|
|
*
|
| 427 |
|
|
*----------------------------------------------------------------------
|
| 428 |
|
|
*/
|
| 429 |
|
|
|
| 430 |
|
|
void
|
| 431 |
|
|
EmbedGeometryRequest(containerPtr, width, height)
|
| 432 |
|
|
Container *containerPtr; /* Information about the container window. */
|
| 433 |
|
|
int width, height; /* Size that the child has requested. */
|
| 434 |
|
|
{
|
| 435 |
|
|
TkWindow * winPtr = containerPtr->parentPtr;
|
| 436 |
|
|
|
| 437 |
|
|
/*
|
| 438 |
|
|
* Forward the requested size into our geometry management hierarchy
|
| 439 |
|
|
* via the container window. We need to send a Configure event back
|
| 440 |
|
|
* to the embedded application even if we decide not to resize
|
| 441 |
|
|
* the window; to make this happen, process all idle event handlers
|
| 442 |
|
|
* synchronously here (so that the geometry managers have had a
|
| 443 |
|
|
* chance to do whatever they want to do), and if the window's size
|
| 444 |
|
|
* didn't change then generate a configure event.
|
| 445 |
|
|
*/
|
| 446 |
|
|
Tk_GeometryRequest((Tk_Window)winPtr, width, height);
|
| 447 |
|
|
|
| 448 |
|
|
if (containerPtr->embeddedHWnd != NULL) {
|
| 449 |
|
|
while (Tcl_DoOneEvent(TCL_IDLE_EVENTS)) {
|
| 450 |
|
|
/* Empty loop body. */
|
| 451 |
|
|
}
|
| 452 |
|
|
|
| 453 |
|
|
SetWindowPos(containerPtr->embeddedHWnd, NULL,
|
| 454 |
|
|
0, 0, winPtr->changes.width, winPtr->changes.height, SWP_NOZORDER);
|
| 455 |
|
|
}
|
| 456 |
|
|
}
|
| 457 |
|
|
|
| 458 |
|
|
/*
|
| 459 |
|
|
*----------------------------------------------------------------------
|
| 460 |
|
|
*
|
| 461 |
|
|
* ContainerEventProc --
|
| 462 |
|
|
*
|
| 463 |
|
|
* This procedure is invoked by the Tk event dispatcher when
|
| 464 |
|
|
* various useful events are received for the container window.
|
| 465 |
|
|
*
|
| 466 |
|
|
* Results:
|
| 467 |
|
|
* None.
|
| 468 |
|
|
*
|
| 469 |
|
|
* Side effects:
|
| 470 |
|
|
* Depends on the event. For example, when ConfigureRequest events
|
| 471 |
|
|
* occur, geometry information gets set for the container window.
|
| 472 |
|
|
*
|
| 473 |
|
|
*----------------------------------------------------------------------
|
| 474 |
|
|
*/
|
| 475 |
|
|
|
| 476 |
|
|
static void
|
| 477 |
|
|
ContainerEventProc(clientData, eventPtr)
|
| 478 |
|
|
ClientData clientData; /* Token for container window. */
|
| 479 |
|
|
XEvent *eventPtr; /* ResizeRequest event. */
|
| 480 |
|
|
{
|
| 481 |
|
|
Container *containerPtr = (Container *)clientData;
|
| 482 |
|
|
Tk_Window tkwin = (Tk_Window)containerPtr->parentPtr;
|
| 483 |
|
|
|
| 484 |
|
|
if (eventPtr->type == ConfigureNotify) {
|
| 485 |
|
|
if (containerPtr->embeddedPtr == NULL) {
|
| 486 |
|
|
return;
|
| 487 |
|
|
}
|
| 488 |
|
|
/* Resize the embedded window, if there is any */
|
| 489 |
|
|
if (containerPtr->embeddedHWnd) {
|
| 490 |
|
|
SetWindowPos(containerPtr->embeddedHWnd, NULL,
|
| 491 |
|
|
0, 0, Tk_Width(tkwin), Tk_Height(tkwin), SWP_NOZORDER);
|
| 492 |
|
|
}
|
| 493 |
|
|
} else if (eventPtr->type == DestroyNotify) {
|
| 494 |
|
|
/* The container is gone, remove it from the list */
|
| 495 |
|
|
EmbedWindowDeleted(containerPtr->parentPtr);
|
| 496 |
|
|
}
|
| 497 |
|
|
}
|
| 498 |
|
|
|
| 499 |
|
|
/*
|
| 500 |
|
|
*----------------------------------------------------------------------
|
| 501 |
|
|
*
|
| 502 |
|
|
* TkpGetOtherWindow --
|
| 503 |
|
|
*
|
| 504 |
|
|
* If both the container and embedded window are in the same
|
| 505 |
|
|
* process, this procedure will return either one, given the other.
|
| 506 |
|
|
*
|
| 507 |
|
|
* Results:
|
| 508 |
|
|
* If winPtr is a container, the return value is the token for the
|
| 509 |
|
|
* embedded window, and vice versa. If the "other" window isn't in
|
| 510 |
|
|
* this process, NULL is returned.
|
| 511 |
|
|
*
|
| 512 |
|
|
* Side effects:
|
| 513 |
|
|
* None.
|
| 514 |
|
|
*
|
| 515 |
|
|
*----------------------------------------------------------------------
|
| 516 |
|
|
*/
|
| 517 |
|
|
|
| 518 |
|
|
TkWindow *
|
| 519 |
|
|
TkpGetOtherWindow(winPtr)
|
| 520 |
|
|
TkWindow *winPtr; /* Tk's structure for a container or
|
| 521 |
|
|
* embedded window. */
|
| 522 |
|
|
{
|
| 523 |
|
|
Container *containerPtr;
|
| 524 |
|
|
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
|
| 525 |
|
|
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
|
| 526 |
|
|
|
| 527 |
|
|
for (containerPtr = tsdPtr->firstContainerPtr; containerPtr != NULL;
|
| 528 |
|
|
containerPtr = containerPtr->nextPtr) {
|
| 529 |
|
|
if (containerPtr->embeddedPtr == winPtr) {
|
| 530 |
|
|
return containerPtr->parentPtr;
|
| 531 |
|
|
} else if (containerPtr->parentPtr == winPtr) {
|
| 532 |
|
|
return containerPtr->embeddedPtr;
|
| 533 |
|
|
}
|
| 534 |
|
|
}
|
| 535 |
|
|
panic("TkpGetOtherWindow couldn't find window");
|
| 536 |
|
|
return NULL;
|
| 537 |
|
|
}
|
| 538 |
|
|
|
| 539 |
|
|
/*
|
| 540 |
|
|
*----------------------------------------------------------------------
|
| 541 |
|
|
*
|
| 542 |
|
|
* TkpClaimFocus --
|
| 543 |
|
|
*
|
| 544 |
|
|
* This procedure is invoked when someone asks or the input focus
|
| 545 |
|
|
* to be put on a window in an embedded application, but the
|
| 546 |
|
|
* application doesn't currently have the focus. It requests the
|
| 547 |
|
|
* input focus from the container application.
|
| 548 |
|
|
*
|
| 549 |
|
|
* Results:
|
| 550 |
|
|
* None.
|
| 551 |
|
|
*
|
| 552 |
|
|
* Side effects:
|
| 553 |
|
|
* The input focus may change.
|
| 554 |
|
|
*
|
| 555 |
|
|
*----------------------------------------------------------------------
|
| 556 |
|
|
*/
|
| 557 |
|
|
|
| 558 |
|
|
void
|
| 559 |
|
|
TkpClaimFocus(topLevelPtr, force)
|
| 560 |
|
|
TkWindow *topLevelPtr; /* Top-level window containing desired
|
| 561 |
|
|
* focus window; should be embedded. */
|
| 562 |
|
|
int force; /* One means that the container should
|
| 563 |
|
|
* claim the focus if it doesn't
|
| 564 |
|
|
* currently have it. */
|
| 565 |
|
|
{
|
| 566 |
|
|
HWND hwnd = GetParent(Tk_GetHWND(topLevelPtr->window));
|
| 567 |
|
|
SendMessage(hwnd, TK_CLAIMFOCUS, (WPARAM) force, 0);
|
| 568 |
|
|
}
|
| 569 |
|
|
|
| 570 |
|
|
/*
|
| 571 |
|
|
*----------------------------------------------------------------------
|
| 572 |
|
|
*
|
| 573 |
|
|
* TkpRedirectKeyEvent --
|
| 574 |
|
|
*
|
| 575 |
|
|
* This procedure is invoked when a key press or release event
|
| 576 |
|
|
* arrives for an application that does not believe it owns the
|
| 577 |
|
|
* input focus. This can happen because of embedding; for example,
|
| 578 |
|
|
* X can send an event to an embedded application when the real
|
| 579 |
|
|
* focus window is in the container application and is an ancestor
|
| 580 |
|
|
* of the container. This procedure's job is to forward the event
|
| 581 |
|
|
* back to the application where it really belongs.
|
| 582 |
|
|
*
|
| 583 |
|
|
* Results:
|
| 584 |
|
|
* None.
|
| 585 |
|
|
*
|
| 586 |
|
|
* Side effects:
|
| 587 |
|
|
* The event may get sent to a different application.
|
| 588 |
|
|
*
|
| 589 |
|
|
*----------------------------------------------------------------------
|
| 590 |
|
|
*/
|
| 591 |
|
|
|
| 592 |
|
|
void
|
| 593 |
|
|
TkpRedirectKeyEvent(winPtr, eventPtr)
|
| 594 |
|
|
TkWindow *winPtr; /* Window to which the event was originally
|
| 595 |
|
|
* reported. */
|
| 596 |
|
|
XEvent *eventPtr; /* X event to redirect (should be KeyPress
|
| 597 |
|
|
* or KeyRelease). */
|
| 598 |
|
|
{
|
| 599 |
|
|
/* not implemented */
|
| 600 |
|
|
}
|
| 601 |
|
|
|
| 602 |
|
|
/*
|
| 603 |
|
|
*----------------------------------------------------------------------
|
| 604 |
|
|
*
|
| 605 |
|
|
* EmbedWindowDeleted --
|
| 606 |
|
|
*
|
| 607 |
|
|
* This procedure is invoked when a window involved in embedding
|
| 608 |
|
|
* (as either the container or the embedded application) is
|
| 609 |
|
|
* destroyed. It cleans up the Container structure for the window.
|
| 610 |
|
|
*
|
| 611 |
|
|
* Results:
|
| 612 |
|
|
* None.
|
| 613 |
|
|
*
|
| 614 |
|
|
* Side effects:
|
| 615 |
|
|
* A Container structure may be freed.
|
| 616 |
|
|
*
|
| 617 |
|
|
*----------------------------------------------------------------------
|
| 618 |
|
|
*/
|
| 619 |
|
|
|
| 620 |
|
|
static void
|
| 621 |
|
|
EmbedWindowDeleted(winPtr)
|
| 622 |
|
|
TkWindow *winPtr; /* Tk's information about window that
|
| 623 |
|
|
* was deleted. */
|
| 624 |
|
|
{
|
| 625 |
|
|
Container *containerPtr, *prevPtr;
|
| 626 |
|
|
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
|
| 627 |
|
|
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
|
| 628 |
|
|
|
| 629 |
|
|
/*
|
| 630 |
|
|
* Find the Container structure for this window work. Delete the
|
| 631 |
|
|
* information about the embedded application and free the container's
|
| 632 |
|
|
* record.
|
| 633 |
|
|
*/
|
| 634 |
|
|
|
| 635 |
|
|
prevPtr = NULL;
|
| 636 |
|
|
containerPtr = tsdPtr->firstContainerPtr;
|
| 637 |
|
|
while (1) {
|
| 638 |
|
|
if (containerPtr->embeddedPtr == winPtr) {
|
| 639 |
|
|
containerPtr->embeddedHWnd = NULL;
|
| 640 |
|
|
containerPtr->embeddedPtr = NULL;
|
| 641 |
|
|
break;
|
| 642 |
|
|
}
|
| 643 |
|
|
if (containerPtr->parentPtr == winPtr) {
|
| 644 |
|
|
containerPtr->parentPtr = NULL;
|
| 645 |
|
|
break;
|
| 646 |
|
|
}
|
| 647 |
|
|
prevPtr = containerPtr;
|
| 648 |
|
|
containerPtr = containerPtr->nextPtr;
|
| 649 |
|
|
if (containerPtr == NULL) {
|
| 650 |
|
|
panic("EmbedWindowDeleted couldn't find window");
|
| 651 |
|
|
}
|
| 652 |
|
|
}
|
| 653 |
|
|
if ((containerPtr->embeddedPtr == NULL)
|
| 654 |
|
|
&& (containerPtr->parentPtr == NULL)) {
|
| 655 |
|
|
if (prevPtr == NULL) {
|
| 656 |
|
|
tsdPtr->firstContainerPtr = containerPtr->nextPtr;
|
| 657 |
|
|
} else {
|
| 658 |
|
|
prevPtr->nextPtr = containerPtr->nextPtr;
|
| 659 |
|
|
}
|
| 660 |
|
|
ckfree((char *) containerPtr);
|
| 661 |
|
|
}
|
| 662 |
|
|
}
|
| 663 |
|
|
|
| 664 |
dashley |
69 |
/* End of tkwinembed.c */
|
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| 
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