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-rw-r--r--mac/tkMacEmbed.c1205
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diff --git a/mac/tkMacEmbed.c b/mac/tkMacEmbed.c
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-/*
- * tkMacEmbed.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.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#include "tkInt.h"
-#include "tkPort.h"
-#include "X.h"
-#include "Xlib.h"
-#include <stdio.h>
-
-#include <Windows.h>
-#include <QDOffscreen.h>
-#include "tkMacInt.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
- */
-
-TkMacEmbedHandler *gMacEmbedHandler = NULL;
-
-/*
- * Prototypes for static procedures defined in this file:
- */
-
-static void ContainerEventProc _ANSI_ARGS_((
- ClientData clientData, XEvent *eventPtr));
-static void EmbeddedEventProc _ANSI_ARGS_((
- ClientData clientData, XEvent *eventPtr));
-static void EmbedActivateProc _ANSI_ARGS_((ClientData clientData,
- XEvent *eventPtr));
-static void EmbedFocusProc _ANSI_ARGS_((ClientData clientData,
- XEvent *eventPtr));
-static void EmbedGeometryRequest _ANSI_ARGS_((
- Container * containerPtr, int width, int height));
-static void EmbedSendConfigure _ANSI_ARGS_((
- Container *containerPtr));
-static void EmbedStructureProc _ANSI_ARGS_((ClientData clientData,
- XEvent *eventPtr));
-static void EmbedWindowDeleted _ANSI_ARGS_((TkWindow *winPtr));
-
-
-/*
- *----------------------------------------------------------------------
- *
- * Tk_MacSetEmbedHandler --
- *
- * 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_MacSetEmbedHandler(
- Tk_MacEmbedRegisterWinProc *registerWinProc,
- Tk_MacEmbedGetGrafPortProc *getPortProc,
- Tk_MacEmbedMakeContainerExistProc *containerExistProc,
- Tk_MacEmbedGetClipProc *getClipProc,
- Tk_MacEmbedGetOffsetInParentProc *getOffsetProc)
-{
- if (gMacEmbedHandler == NULL) {
- gMacEmbedHandler = (TkMacEmbedHandler *) ckalloc(sizeof(TkMacEmbedHandler));
- }
- gMacEmbedHandler->registerWinProc = registerWinProc;
- gMacEmbedHandler->getPortProc = getPortProc;
- gMacEmbedHandler->containerExistProc = containerExistProc;
- gMacEmbedHandler->getClipProc = getClipProc;
- gMacEmbedHandler->getOffsetProc = getOffsetProc;
-}
-
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpMakeWindow --
- *
- * Creates an X Window (Mac subwindow).
- *
- * Results:
- * The window id is returned.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-Window
-TkpMakeWindow(
- TkWindow *winPtr,
- Window parent)
-{
- MacDrawable *macWin;
- XEvent event;
-
- /*
- * If this window is marked as embedded then
- * the window structure should have already been
- * created in the TkpUseWindow function.
- */
-
- if (Tk_IsEmbedded(winPtr)) {
- return (Window) winPtr->privatePtr;
- }
-
- /*
- * Allocate sub window
- */
-
- macWin = (MacDrawable *) ckalloc(sizeof(MacDrawable));
- if (macWin == NULL) {
- winPtr->privatePtr = NULL;
- return None;
- }
- macWin->winPtr = winPtr;
- winPtr->privatePtr = macWin;
- macWin->clipRgn = NewRgn();
- macWin->aboveClipRgn = NewRgn();
- macWin->referenceCount = 0;
- macWin->flags = TK_CLIP_INVALID;
-
- if (Tk_IsTopLevel(macWin->winPtr)) {
-
- /*
- *This will be set when we are mapped.
- */
-
- macWin->portPtr = (GWorldPtr) NULL;
- macWin->toplevel = macWin;
- macWin->xOff = 0;
- macWin->yOff = 0;
- } else {
- macWin->portPtr = NULL;
- 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++;
-
- /*
- * TODO: need general solution for visibility events.
- */
- event.xany.serial = Tk_Display(winPtr)->request;
- event.xany.send_event = False;
- event.xany.display = Tk_Display(winPtr);
-
- event.xvisibility.type = VisibilityNotify;
- event.xvisibility.window = (Window) macWin;;
- event.xvisibility.state = VisibilityUnobscured;
- Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
-
- return (Window) macWin;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * 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;
- XEvent event;
- int result;
-
- if (winPtr->window != None) {
- panic("TkpUseWindow: X window already assigned");
- }
-
- /*
- * Decode the container pointer, 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 (Tcl_GetInt(interp, string, &result) != TCL_OK) {
- return TCL_ERROR;
- }
-
- usePtr = (TkWindow *) Tk_IdToWindow(winPtr->display, (Window) result);
-
- if (usePtr == NULL) {
- Tcl_AppendResult(interp, "Tk window does not correspond to id \"",
- string, "\"", (char *) NULL);
- return TCL_ERROR;
- } else {
- if (!(usePtr->flags & TK_CONTAINER)) {
- Tcl_AppendResult(interp, "window \"", usePtr->pathName,
- "\" doesn't have -container option set", (char *) NULL);
- return TCL_ERROR;
- }
- }
-
- parent = (MacDrawable *) result;
-
- /*
- * 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 = (MacDrawable *) ckalloc(sizeof(MacDrawable));
- if (macWin == NULL) {
- winPtr->privatePtr = NULL;
- return TCL_ERROR;
- }
-
- macWin->winPtr = winPtr;
- winPtr->privatePtr = macWin;
-
- /*
- * The portPtr 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 TkMacGetDrawablePort
- * to get the portPtr. It will correctly find the container's port.
- */
-
- macWin->portPtr = (GWorldPtr) NULL;
-
- macWin->clipRgn = NewRgn();
- macWin->aboveClipRgn = NewRgn();
- 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 (gMacEmbedHandler == NULL ||
- gMacEmbedHandler->registerWinProc(result, (Tk_Window) winPtr) != TCL_OK) {
- Tcl_AppendResult(interp, "The window ID ", string,
- " does not correspond to a valid Tk Window.",
- (char *) NULL);
- return TCL_ERROR;
- } else {
- containerPtr = (Container *) 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,
- (ClientData) winPtr);
-
- }
-
- /*
- * TODO: need general solution for visibility events.
- */
-
- event.xany.serial = Tk_Display(winPtr)->request;
- event.xany.send_event = False;
- event.xany.display = Tk_Display(winPtr);
-
- event.xvisibility.type = VisibilityNotify;
- event.xvisibility.window = (Window) macWin;;
- event.xvisibility.state = VisibilityUnobscured;
- Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
-
-
- /*
- * TODO: need general solution for visibility events.
- */
-
- event.xany.serial = Tk_Display(winPtr)->request;
- event.xany.send_event = False;
- event.xany.display = Tk_Display(winPtr);
-
- event.xvisibility.type = VisibilityNotify;
- event.xvisibility.window = (Window) macWin;;
- event.xvisibility.state = VisibilityUnobscured;
- Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
-
- return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * 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 = (Container *) 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, (ClientData) winPtr);
- Tk_CreateEventHandler(tkwin, StructureNotifyMask, EmbedStructureProc,
- (ClientData) containerPtr);
- Tk_CreateEventHandler(tkwin, ActivateMask, EmbedActivateProc,
- (ClientData) containerPtr);
- Tk_CreateEventHandler(tkwin, FocusChangeMask, EmbedFocusProc,
- (ClientData) containerPtr);
-
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkMacContainerId --
- *
- * 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 *
-TkMacContainerId(winPtr)
- 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;
- }
- }
- panic("TkMacContainerId couldn't find window");
- return None;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkMacGetHostToplevel --
- *
- * 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 *
-TkMacGetHostToplevel(
- TkWindow *winPtr) /* Tk's structure for a window. */
-{
- TkWindow *contWinPtr, *topWinPtr;
-
- topWinPtr = winPtr->privatePtr->toplevel->winPtr;
- if (!Tk_IsEmbedded(topWinPtr)) {
- return winPtr->privatePtr->toplevel;
- } else {
- contWinPtr = TkpGetOtherWindow(topWinPtr);
-
- /*
- * NOTE: Here we should handle out of process embedding.
- */
-
- if (contWinPtr != NULL) {
- return TkMacGetHostToplevel(contWinPtr);
- } else {
- return None;
- }
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * 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);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * 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 argc, /* Number of arguments. */
- CONST char **argv) /* Argument strings. */
-{
- int all;
- Container *containerPtr;
- Tcl_DString dString;
- char buffer[50];
-
- if ((argc > 1) && (strcmp(argv[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;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * 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). */
-{
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * 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;
-}
-/*
- *----------------------------------------------------------------------
- *
- * EmbeddedEventProc --
- *
- * This procedure is invoked by the Tk event dispatcher when various
- * useful events are received for a window that is embedded in
- * another application.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Our internal state gets cleaned up when an embedded window is
- * destroyed.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EmbeddedEventProc(clientData, eventPtr)
- ClientData clientData; /* Token for container window. */
- XEvent *eventPtr; /* ResizeRequest event. */
-{
- TkWindow *winPtr = (TkWindow *) clientData;
-
- if (eventPtr->type == DestroyNotify) {
- EmbedWindowDeleted(winPtr);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * ContainerEventProc --
- *
- * This procedure is invoked by the Tk event dispatcher when various
- * useful events are received for the children of a container
- * window. It forwards relevant information, such as geometry
- * requests, from the events into the container's application.
- *
- * 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, eventPtr)
- ClientData clientData; /* Token for container window. */
- XEvent *eventPtr; /* ResizeRequest event. */
-{
- TkWindow *winPtr = (TkWindow *) 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, (Tk_ErrorProc *) NULL, (ClientData) NULL);
-
- /*
- * Find the Container structure associated with the parent window.
- */
-
- for (containerPtr = firstContainerPtr;
- containerPtr->parent != eventPtr->xmaprequest.parent;
- containerPtr = containerPtr->nextPtr) {
- if (containerPtr == NULL) {
- panic("ContainerEventProc couldn't find Container record");
- }
- }
-
- if (eventPtr->type == CreateNotify) {
- /*
- * A new child window has been created in the container. Record
- * its id in the Container structure (if more than one child is
- * created, just remember the last one and ignore the earlier
- * ones).
- */
-
- 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);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EmbedStructureProc --
- *
- * This procedure is invoked by the Tk event dispatcher when
- * a container window owned by this application gets resized
- * (and also at several other times that we don't care about).
- * This procedure reflects the size change in the embedded
- * window that corresponds to the container.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The embedded window gets resized to match the container.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EmbedStructureProc(clientData, eventPtr)
- ClientData clientData; /* Token for container window. */
- XEvent *eventPtr; /* ResizeRequest event. */
-{
- Container *containerPtr = (Container *) clientData;
- Tk_ErrorHandler errHandler;
-
- if (eventPtr->type == ConfigureNotify) {
- if (containerPtr->embedded != None) {
- /*
- * Ignore errors, since the embedded application could have
- * deleted its window.
- */
-
- errHandler = Tk_CreateErrorHandler(eventPtr->xfocus.display, -1,
- -1, -1, (Tk_ErrorProc *) NULL, (ClientData) NULL);
- Tk_MoveResizeWindow((Tk_Window) containerPtr->embeddedPtr, 0, 0,
- (unsigned int) Tk_Width(
- (Tk_Window) containerPtr->parentPtr),
- (unsigned int) Tk_Height(
- (Tk_Window) containerPtr->parentPtr));
- Tk_DeleteErrorHandler(errHandler);
- }
- } else if (eventPtr->type == DestroyNotify) {
- EmbedWindowDeleted(containerPtr->parentPtr);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * 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, eventPtr)
- ClientData clientData; /* Token for container window. */
- XEvent *eventPtr; /* ResizeRequest event. */
-{
- Container *containerPtr = (Container *) clientData;
-
- if (containerPtr->embeddedPtr != NULL) {
- if (eventPtr->type == ActivateNotify) {
- TkGenerateActivateEvents(containerPtr->embeddedPtr,1);
- } else if (eventPtr->type == DeactivateNotify) {
- TkGenerateActivateEvents(containerPtr->embeddedPtr,0);
- }
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EmbedFocusProc --
- *
- * This procedure is invoked by the Tk event dispatcher when
- * FocusIn and FocusOut events occur for a container window owned
- * by this application. It is responsible for moving the focus
- * back and forth between a container application and an embedded
- * application.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The X focus may change.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EmbedFocusProc(clientData, eventPtr)
- ClientData clientData; /* Token for container window. */
- XEvent *eventPtr; /* ResizeRequest event. */
-{
- Container *containerPtr = (Container *) clientData;
- 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);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * 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(containerPtr, width, height)
- Container *containerPtr; /* Information about the embedding. */
- int width, height; /* Size that the child has requested. */
-{
- TkWindow *winPtr = containerPtr->parentPtr;
-
- /*
- * Forward the requested size into our geometry management hierarchy
- * via the container window. We need to send a Configure event back
- * to the embedded application if we decide not to honor its
- * request; to make this happen, process all idle event handlers
- * synchronously here (so that the geometry managers have had a
- * chance to do whatever they want to do), and if the window's size
- * didn't change then generate a configure event.
- */
-
- Tk_GeometryRequest((Tk_Window) winPtr, width, height);
- while (Tcl_DoOneEvent(TCL_IDLE_EVENTS)) {
- /* Empty loop body. */
- }
- if ((winPtr->changes.width != width)
- || (winPtr->changes.height != height)) {
- EmbedSendConfigure(containerPtr);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EmbedSendConfigure --
- *
- * This 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(containerPtr)
- Container *containerPtr; /* Information about the embedding. */
-{
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EmbedWindowDeleted --
- *
- * This procedure is invoked when a window involved in embedding
- * (as either the container or the embedded application) is
- * destroyed. It cleans up the Container structure for the window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * A Container structure may be freed.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EmbedWindowDeleted(winPtr)
- TkWindow *winPtr; /* Tk's information about window that
- * was deleted. */
-{
- Container *containerPtr, *prevPtr;
-
- /*
- * 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 =
- Tk_Display(containerPtr->parentPtr)->request;
- 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((char *) containerPtr);
- }
-}
-
generated by cgit v0.12 at 2024-11-25 04:14:14 (GMT)