+++ /dev/null
-/*
- * tkMacOSXEmbed.c --
- *
- * This file contains platform-specific procedures for theMac to provide
- * basic operations needed for application embedding (where one
- * application can use as its main window an internal window from some
- * other application). Currently only Toplevel embedding within the same
- * Tk application is allowed on the Macintosh.
- *
- * Copyright (c) 1996-1997 Sun Microsystems, Inc.
- * Copyright 2001-2009, Apple Inc.
- * Copyright (c) 2006-2009 Daniel A. Steffen <das@users.sourceforge.net>
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#include "tkMacOSXPrivate.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; /* The Mac Drawable for the parent of the pair
- * (the container). */
- TkWindow *parentPtr; /* Tk's information about the container, or
- * NULL if the container isn't in this
- * process. */
- Window embedded; /* The MacDrawable 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. */
- struct Container *nextPtr; /* Next in list of all containers in this
- * process. */
-} Container;
-
-static Container *firstContainerPtr = NULL;
- /* First in list of all containers managed by
- * this process. */
-/*
- * Globals defined in this file:
- */
-
-TkMacOSXEmbedHandler *tkMacOSXEmbedHandler = NULL;
-
-/*
- * Prototypes for static procedures defined in this file:
- */
-
-static void ContainerEventProc(ClientData clientData, XEvent *eventPtr);
-static void EmbeddedEventProc(ClientData clientData, XEvent *eventPtr);
-static void EmbedActivateProc(ClientData clientData, XEvent *eventPtr);
-static void EmbedFocusProc(ClientData clientData, XEvent *eventPtr);
-static void EmbedGeometryRequest(Container *containerPtr, int width,
- int height);
-static void EmbedSendConfigure(Container *containerPtr);
-static void EmbedStructureProc(ClientData clientData, XEvent *eventPtr);
-static void EmbedWindowDeleted(TkWindow *winPtr);
-\f
-/*
- *----------------------------------------------------------------------
- *
- * Tk_MacOSXSetEmbedHandler --
- *
- * Registers a handler for an in process form of embedding, like Netscape
- * plugins, where Tk is loaded into the process, but does not control the
- * main window
- *
- * Results:
- * None
- *
- * Side effects:
- * The embed handler is set.
- *
- *----------------------------------------------------------------------
- */
-
-void
-Tk_MacOSXSetEmbedHandler(
- Tk_MacOSXEmbedRegisterWinProc *registerWinProc,
- Tk_MacOSXEmbedGetGrafPortProc *getPortProc,
- Tk_MacOSXEmbedMakeContainerExistProc *containerExistProc,
- Tk_MacOSXEmbedGetClipProc *getClipProc,
- Tk_MacOSXEmbedGetOffsetInParentProc *getOffsetProc)
-{
- if (tkMacOSXEmbedHandler == NULL) {
- tkMacOSXEmbedHandler = ckalloc(sizeof(TkMacOSXEmbedHandler));
- }
- tkMacOSXEmbedHandler->registerWinProc = registerWinProc;
- tkMacOSXEmbedHandler->getPortProc = getPortProc;
- tkMacOSXEmbedHandler->containerExistProc = containerExistProc;
- tkMacOSXEmbedHandler->getClipProc = getClipProc;
- tkMacOSXEmbedHandler->getOffsetProc = getOffsetProc;
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * TkpMakeWindow --
- *
- * Creates an X Window (Mac subwindow).
- *
- * Results:
- * The window id is returned.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-Window
-TkpMakeWindow(
- TkWindow *winPtr,
- Window parent)
-{
- MacDrawable *macWin;
-
- /*
- * If this window is marked as embedded then the window structure should
- * have already been created in the TkpUseWindow function.
- */
-
- if (Tk_IsEmbedded(winPtr)) {
- macWin = winPtr->privatePtr;
- } else {
- /*
- * Allocate sub window
- */
-
- macWin = ckalloc(sizeof(MacDrawable));
- if (macWin == NULL) {
- winPtr->privatePtr = NULL;
- return None;
- }
- macWin->winPtr = winPtr;
- winPtr->privatePtr = macWin;
- macWin->visRgn = NULL;
- macWin->aboveVisRgn = NULL;
- macWin->drawRgn = NULL;
- macWin->referenceCount = 0;
- macWin->flags = TK_CLIP_INVALID;
- macWin->view = nil;
- macWin->context = NULL;
- macWin->size = CGSizeZero;
- if (Tk_IsTopLevel(macWin->winPtr)) {
- /*
- * This will be set when we are mapped.
- */
-
- macWin->xOff = 0;
- macWin->yOff = 0;
- macWin->toplevel = macWin;
- } else if (winPtr->parentPtr) {
- macWin->xOff = winPtr->parentPtr->privatePtr->xOff +
- winPtr->parentPtr->changes.border_width +
- winPtr->changes.x;
- macWin->yOff = winPtr->parentPtr->privatePtr->yOff +
- winPtr->parentPtr->changes.border_width +
- winPtr->changes.y;
- macWin->toplevel = winPtr->parentPtr->privatePtr->toplevel;
- }
- macWin->toplevel->referenceCount++;
- }
- return (Window) macWin;
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * TkpScanWindowId --
- *
- * Given a string, produce the corresponding Window Id.
- *
- * Results:
- * The return value is normally TCL_OK; in this case *idPtr will be set
- * to the Window value equivalent to string. If string is improperly
- * formed then TCL_ERROR is returned and an error message will be left in
- * the interp's result.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TkpScanWindowId(
- Tcl_Interp *interp,
- CONST char * string,
- Window *idPtr)
-{
- int code;
- Tcl_Obj obj;
-
- obj.refCount = 1;
- obj.bytes = (char *) string; /* DANGER?! */
- obj.length = strlen(string);
- obj.typePtr = NULL;
-
- code = Tcl_GetLongFromObj(interp, &obj, (long *)idPtr);
-
- if (obj.refCount > 1) {
- Tcl_Panic("invalid sharing of Tcl_Obj on C stack");
- }
- if (obj.typePtr && obj.typePtr->freeIntRepProc) {
- obj.typePtr->freeIntRepProc(&obj);
- }
- return code;
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * 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:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TkpUseWindow(
- 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;
- MacDrawable *parent, *macWin;
- Container *containerPtr;
-
- if (winPtr->window != None) {
- Tcl_SetObjResult(interp, Tcl_NewStringObj(
- "can't modify container after widget is created", -1));
- Tcl_SetErrorCode(interp, "TK", "EMBED", "POST_CREATE", NULL);
- return TCL_ERROR;
- }
-
- /*
- * Decode the container window ID, and look for it among the list of
- * available containers.
- *
- * N.B. For now, we are limiting the containers to be in the same Tk
- * application as tkwin, since otherwise they would not be in our list of
- * containers.
- */
-
- if (TkpScanWindowId(interp, string, (Window *)&parent) != TCL_OK) {
- return TCL_ERROR;
- }
-
- usePtr = (TkWindow *) Tk_IdToWindow(winPtr->display, (Window) 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", NULL);
- return TCL_ERROR;
- }
-
- /*
- * The code below can probably be simplified given we have already
- * discovered 'usePtr' above.
- */
-
- /*
- * Save information about the container and the embedded window in a
- * Container structure. Currently, there must already be an existing
- * Container structure, since we only allow the case where both container
- * and embedded app. are in the same process.
- */
-
- for (containerPtr = firstContainerPtr; containerPtr != NULL;
- containerPtr = containerPtr->nextPtr) {
- if (containerPtr->parent == (Window) parent) {
- winPtr->flags |= TK_BOTH_HALVES;
- containerPtr->parentPtr->flags |= TK_BOTH_HALVES;
- break;
- }
- }
-
- /*
- * Make the embedded window.
- */
-
- macWin = ckalloc(sizeof(MacDrawable));
- if (macWin == NULL) {
- winPtr->privatePtr = NULL;
- return TCL_ERROR;
- }
-
- macWin->winPtr = winPtr;
- winPtr->privatePtr = macWin;
-
- /*
- * The grafPtr will be NULL for a Tk in Tk embedded window. It is none of
- * our business what it is for a Tk not in Tk embedded window, but we will
- * initialize it to NULL, and let the registerWinProc set it. In any case,
- * you must always use TkMacOSXGetDrawablePort to get the portPtr. It will
- * correctly find the container's port.
- */
-
- macWin->view = nil;
- macWin->context = NULL;
- macWin->size = CGSizeZero;
- macWin->visRgn = NULL;
- macWin->aboveVisRgn = NULL;
- macWin->drawRgn = NULL;
- macWin->referenceCount = 0;
- macWin->flags = TK_CLIP_INVALID;
- macWin->toplevel = macWin;
- macWin->toplevel->referenceCount++;
-
- winPtr->flags |= TK_EMBEDDED;
-
- /*
- * Make a copy of the TK_EMBEDDED flag, since sometimes we need this to
- * get the port after the TkWindow structure has been freed.
- */
-
- macWin->flags |= TK_EMBEDDED;
-
- /*
- * Now check whether it is embedded in another Tk widget. If not (the
- * first case below) we see if there is an in-process embedding handler
- * registered, and if so, let that fill in the rest of the macWin.
- */
-
- if (containerPtr == NULL) {
- /*
- * If someone has registered an in-process embedding handler, then
- * see if it can handle this window...
- */
-
- if (tkMacOSXEmbedHandler == NULL ||
- tkMacOSXEmbedHandler->registerWinProc((long) parent,
- (Tk_Window) winPtr) != TCL_OK) {
- Tcl_SetObjResult(interp, Tcl_ObjPrintf(
- "The window ID %s does not correspond to a valid Tk Window",
- string));
- Tcl_SetErrorCode(interp, "TK", "EMBED", "HANDLE", NULL);
- return TCL_ERROR;
- }
-
- containerPtr = ckalloc(sizeof(Container));
-
- containerPtr->parentPtr = NULL;
- containerPtr->embedded = (Window) macWin;
- containerPtr->embeddedPtr = macWin->winPtr;
- containerPtr->nextPtr = firstContainerPtr;
- firstContainerPtr = containerPtr;
- } else {
- /*
- * The window is embedded in another Tk window.
- */
-
- macWin->xOff = parent->winPtr->privatePtr->xOff +
- parent->winPtr->changes.border_width +
- winPtr->changes.x;
- macWin->yOff = parent->winPtr->privatePtr->yOff +
- parent->winPtr->changes.border_width +
- winPtr->changes.y;
-
- /*
- * Finish filling up the container structure with the embedded
- * window's information.
- */
-
- containerPtr->embedded = (Window) macWin;
- containerPtr->embeddedPtr = macWin->winPtr;
-
- /*
- * Create an event handler to clean up the Container structure when
- * tkwin is eventually deleted.
- */
-
- Tk_CreateEventHandler(tkwin, StructureNotifyMask, EmbeddedEventProc,
- winPtr);
- }
-
- return TCL_OK;
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * 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(
- Tk_Window tkwin) /* Token for a window that is about to become
- * a container. */
-{
- TkWindow *winPtr = (TkWindow *) tkwin;
- Container *containerPtr;
-
- /*
- * Register the window as a container so that, for example, we can make
- * sure the argument to -use is valid.
- */
-
- Tk_MakeWindowExist(tkwin);
- containerPtr = ckalloc(sizeof(Container));
- containerPtr->parent = Tk_WindowId(tkwin);
- containerPtr->parentPtr = winPtr;
- containerPtr->embedded = None;
- containerPtr->embeddedPtr = NULL;
- containerPtr->nextPtr = firstContainerPtr;
- 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. Also, pass activate events from the container down to the
- * embedded toplevel.
- */
-
- Tk_CreateEventHandler(tkwin,
- SubstructureNotifyMask|SubstructureRedirectMask,
- ContainerEventProc, winPtr);
- Tk_CreateEventHandler(tkwin, StructureNotifyMask, EmbedStructureProc,
- containerPtr);
- Tk_CreateEventHandler(tkwin, ActivateMask, EmbedActivateProc,
- containerPtr);
- Tk_CreateEventHandler(tkwin, FocusChangeMask, EmbedFocusProc,
- containerPtr);
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * TkMacOSXContainerId --
- *
- * Given an embedded window, this procedure returns the MacDrawable
- * identifier for the associated container window.
- *
- * Results:
- * The return value is the MacDrawable for winPtr's container window.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-MacDrawable *
-TkMacOSXContainerId(
- TkWindow *winPtr) /* Tk's structure for an embedded window. */
-{
- Container *containerPtr;
-
- for (containerPtr = firstContainerPtr; containerPtr != NULL;
- containerPtr = containerPtr->nextPtr) {
- if (containerPtr->embeddedPtr == winPtr) {
- return (MacDrawable *) containerPtr->parent;
- }
- }
- Tcl_Panic("TkMacOSXContainerId couldn't find window");
- return None;
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * TkMacOSXGetHostToplevel --
- *
- * Given the TkWindow, return the MacDrawable for the outermost toplevel
- * containing it. This will be a real Macintosh window.
- *
- * Results:
- * Returns a MacDrawable corresponding to a Macintosh Toplevel
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-MacDrawable *
-TkMacOSXGetHostToplevel(
- TkWindow *winPtr) /* Tk's structure for a window. */
-{
- TkWindow *contWinPtr, *topWinPtr;
-
- topWinPtr = winPtr->privatePtr->toplevel->winPtr;
- if (!Tk_IsEmbedded(topWinPtr)) {
- return winPtr->privatePtr->toplevel;
- }
- contWinPtr = TkpGetOtherWindow(topWinPtr);
-
- /*
- * TODO: Here we should handle out of process embedding.
- */
-
- if (contWinPtr == NULL) {
- return None;
- }
- return TkMacOSXGetHostToplevel(contWinPtr);
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * TkpClaimFocus --
- *
- * This procedure is invoked when someone asks for 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;
-
- if (!(topLevelPtr->flags & TK_EMBEDDED)) {
- return;
- }
-
- for (containerPtr = 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;
- Tk_QueueWindowEvent(&event,TCL_QUEUE_TAIL);
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * 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 clientData, /* Main window for application. */
- Tcl_Interp *interp, /* Current interpreter. */
- int objc, /* Number of arguments. */
- Tcl_Obj *const objv[]) /* Argument strings. */
-{
- int all;
- Container *containerPtr;
- Tcl_DString dString;
- char buffer[50];
-
- if ((objc > 1) && (strcmp(Tcl_GetString(objv[1]), "all") == 0)) {
- all = 1;
- } else {
- all = 0;
- }
- Tcl_DStringInit(&dString);
- for (containerPtr = 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->embedded == None) {
- Tcl_DStringAppendElement(&dString, "");
- } else if (all) {
- sprintf(buffer, "0x%x", (int) containerPtr->embedded);
- 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;
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * 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(
- TkWindow *winPtr, /* Window to which the event was originally
- * reported. */
- XEvent *eventPtr) /* X event to redirect (should be KeyPress or
- * KeyRelease). */
-{
- /* TODO: Implement this or decide it definitely needs no implementation */
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * 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(
- TkWindow *winPtr) /* Tk's structure for a container or embedded
- * window. */
-{
- Container *containerPtr;
-
- /*
- * TkpGetOtherWindow returns NULL if both windows are not in the same
- * process...
- */
-
- if (!(winPtr->flags & TK_BOTH_HALVES)) {
- return NULL;
- }
-
- for (containerPtr = firstContainerPtr; containerPtr != NULL;
- containerPtr = containerPtr->nextPtr) {
- if (containerPtr->embeddedPtr == winPtr) {
- return containerPtr->parentPtr;
- } else if (containerPtr->parentPtr == winPtr) {
- return containerPtr->embeddedPtr;
- }
- }
- return NULL;
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * 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 clientData, /* Token for container window. */
- XEvent *eventPtr) /* ResizeRequest event. */
-{
- TkWindow *winPtr = clientData;
-
- if (eventPtr->type == DestroyNotify) {
- EmbedWindowDeleted(winPtr);
- }
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * 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.
- *
- * NOTE: on the Mac, only the DestroyNotify branch is ever taken. We
- * don't synthesize the other events.
- *
- * 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 clientData, /* Token for container window. */
- XEvent *eventPtr) /* ResizeRequest event. */
-{
- TkWindow *winPtr = clientData;
- Container *containerPtr;
- Tk_ErrorHandler errHandler;
-
- /*
- * 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, NULL, NULL);
-
- /*
- * Find the Container structure associated with the parent window.
- */
-
- for (containerPtr = 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).
- */
-
- containerPtr->embedded = eventPtr->xcreatewindow.window;
- } 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);
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * 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 clientData, /* Token for container window. */
- XEvent *eventPtr) /* ResizeRequest event. */
-{
- Container *containerPtr = clientData;
- Tk_ErrorHandler errHandler;
-
- if (eventPtr->type == ConfigureNotify) {
- if (containerPtr->embedded != None) {
- /*
- * Ignore errors, since the embedded application could have
- * deleted its window.
- */
-
- errHandler = Tk_CreateErrorHandler(eventPtr->xfocus.display, -1,
- -1, -1, NULL, NULL);
- Tk_MoveResizeWindow((Tk_Window) containerPtr->embeddedPtr, 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);
- }
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * EmbedActivateProc --
- *
- * This procedure is invoked by the Tk event dispatcher when Activate and
- * Deactivate events occur for a container window owned by this
- * application. It is responsible for forwarding an activate event down
- * into the embedded toplevel.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The X focus may change.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EmbedActivateProc(
- ClientData clientData, /* Token for container window. */
- XEvent *eventPtr) /* ResizeRequest event. */
-{
- Container *containerPtr = clientData;
-
- if (containerPtr->embeddedPtr != NULL) {
- if (eventPtr->type == ActivateNotify) {
- TkGenerateActivateEvents(containerPtr->embeddedPtr,1);
- } else if (eventPtr->type == DeactivateNotify) {
- TkGenerateActivateEvents(containerPtr->embeddedPtr,0);
- }
- }
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * 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 clientData, /* Token for container window. */
- XEvent *eventPtr) /* ResizeRequest event. */
-{
- Container *containerPtr = clientData;
- Display *display;
- XEvent event;
-
- if (containerPtr->embeddedPtr != NULL) {
- display = Tk_Display(containerPtr->parentPtr);
- event.xfocus.serial = LastKnownRequestProcessed(display);
- event.xfocus.send_event = false;
- event.xfocus.display = display;
- event.xfocus.mode = NotifyNormal;
- event.xfocus.window = containerPtr->embedded;
-
- 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).
- */
-
- event.xfocus.detail = NotifyNonlinear;
- event.xfocus.type = FocusIn;
- } else if (eventPtr->type == FocusOut) {
- /*
- * When the container gets a FocusOut event, it has to tell the
- * embedded app that it has lost the focus.
- */
-
- event.xfocus.type = FocusOut;
- event.xfocus.detail = NotifyNonlinear;
- }
-
- Tk_QueueWindowEvent(&event, TCL_QUEUE_MARK);
- }
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * 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.
- *
- * NOTE: On the Mac, this is a stub, since we don't synthesize
- * ConfigureRequest events.
- *
- * 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);
- }
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * EmbedSendConfigure --
- *
- * This is currently a stub. It is called 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. It is a response to ConfigureRequest events, which
- * we do not currently synthesize on the Mac
- *
- * Results:
- * None.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EmbedSendConfigure(
- Container *containerPtr) /* Information about the embedding. */
-{
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * 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(
- TkWindow *winPtr) /* Tk's information about window that
- * was deleted. */
-{
- Container *containerPtr, *prevPtr;
-
- /*
- * Find the Container structure for this window. Delete the information
- * about the embedded application and free the container's record.
- */
-
- prevPtr = NULL;
- containerPtr = firstContainerPtr;
- while (1) {
- if (containerPtr->embeddedPtr == winPtr) {
- /*
- * We also have to destroy our parent, to clean up the container.
- * Fabricate an event to do this.
- */
-
- if (containerPtr->parentPtr != NULL &&
- containerPtr->parentPtr->flags & TK_BOTH_HALVES) {
- XEvent event;
-
- event.xany.serial =
- LastKnownRequestProcessed(Tk_Display(containerPtr->parentPtr));
- event.xany.send_event = False;
- event.xany.display = Tk_Display(containerPtr->parentPtr);
-
- event.xany.type = DestroyNotify;
- event.xany.window = containerPtr->parent;
- event.xdestroywindow.event = containerPtr->parent;
- Tk_QueueWindowEvent(&event, TCL_QUEUE_HEAD);
- }
-
- containerPtr->embedded = 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) {
- firstContainerPtr = containerPtr->nextPtr;
- } else {
- prevPtr->nextPtr = containerPtr->nextPtr;
- }
- ckfree(containerPtr);
- }
-}
-\f
-/*
- *----------------------------------------------------------------------
- *
- * TkpShowBusyWindow, TkpHideBusyWindow, TkpMakeTransparentWindowExist,
- * TkpCreateBusy --
- *
- * Portability layer for busy windows. Holds platform-specific gunk for
- * the [tk busy] command, which is currently a dummy implementation for
- * OSX/Aqua. The individual functions are supposed to do the following:
- *
- * TkpShowBusyWindow --
- * Make the busy window appear.
- *
- * TkpHideBusyWindow --
- * Make the busy window go away.
- *
- * TkpMakeTransparentWindowExist --
- * Actually make a transparent window.
- *
- * TkpCreateBusy --
- * Creates the platform-specific part of a busy window structure.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TkpShowBusyWindow(
- TkBusy busy)
-{
-}
-
-void
-TkpHideBusyWindow(
- TkBusy busy)
-{
-}
-
-void
-TkpMakeTransparentWindowExist(
- Tk_Window tkwin, /* Token for window. */
- Window parent) /* Parent window. */
-{
-}
-
-void
-TkpCreateBusy(
- Tk_FakeWin *winPtr,
- Tk_Window tkRef,
- Window* parentPtr,
- Tk_Window tkParent,
- TkBusy busy)
-{
-}
-\f
-/*
- * Local Variables:
- * mode: objc
- * c-basic-offset: 4
- * fill-column: 79
- * coding: utf-8
- * End:
- */
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