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authorWilliam Joye <wjoye@cfa.harvard.edu>2018-12-25 19:55:50 (GMT)
committerWilliam Joye <wjoye@cfa.harvard.edu>2018-12-25 19:55:50 (GMT)
commitff51550ee89b473c63df78de6b2a413f21105687 (patch)
treebcdca927ed2a7b05c647b9a6bfdfd4a7ca5c730e /tk8.6/unix/tkUnixEmbed.c
parent01cbf5b15ea760408c24288ccb5cf8e0af9aa299 (diff)
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update tcl/tk
Diffstat (limited to 'tk8.6/unix/tkUnixEmbed.c')
-rw-r--r--tk8.6/unix/tkUnixEmbed.c1185
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diff --git a/tk8.6/unix/tkUnixEmbed.c b/tk8.6/unix/tkUnixEmbed.c
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--- a/tk8.6/unix/tkUnixEmbed.c
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-/*
- * tkUnixEmbed.c --
- *
- * This file contains platform-specific functions for UNIX to provide
- * basic operations needed for application embedding (where one
- * application can use as its main window an internal window from some
- * other application). Also includes code to support busy windows.
- *
- * Copyright (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 "tkUnixInt.h"
-#include "tkBusy.h"
-
-/*
- * One of the following structures exists for each container in this
- * application. It keeps track of the container window and its associated
- * embedded window.
- */
-
-typedef struct Container {
- Window parent; /* X's window id for the parent of the pair
- * (the container). */
- Window parentRoot; /* Id for the root window of parent's
- * screen. */
- TkWindow *parentPtr; /* Tk's information about the container, or
- * NULL if the container isn't in this
- * process. */
- Window wrapper; /* X's window id for the wrapper window for
- * the embedded window. Starts off as None,
- * but gets filled in when the window is
- * eventually created. */
- TkWindow *embeddedPtr; /* Tk's information about the embedded window,
- * or NULL if the embedded application isn't
- * in this process. Note that this is *not*
- * the same window as wrapper: wrapper is the
- * parent of embeddedPtr. */
- struct Container *nextPtr; /* Next in list of all containers in this
- * process. */
-} Container;
-
-typedef struct ThreadSpecificData {
- Container *firstContainerPtr;
- /* First in list of all containers managed by
- * this process. */
-} ThreadSpecificData;
-static Tcl_ThreadDataKey dataKey;
-
-/*
- * Prototypes for static functions defined in this file:
- */
-
-static void ContainerEventProc(ClientData clientData,
- XEvent *eventPtr);
-static void EmbeddedEventProc(ClientData clientData,
- XEvent *eventPtr);
-static int EmbedErrorProc(ClientData clientData,
- XErrorEvent *errEventPtr);
-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);
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpUseWindow --
- *
- * This function causes a Tk window to use a given X window as its parent
- * window, rather than the root window for the screen. It is invoked by
- * an embedded application to specify the window in which it is embedded.
- *
- * Results:
- * The return value is normally TCL_OK. If an error occurs (such as
- * string not being a valid window spec), then the return value is
- * TCL_ERROR and an error message is left in the interp's result if
- * interp is non-NULL.
- *
- * Side effects:
- * Changes the colormap and other visual information to match that of the
- * parent window given by "string".
- *
- *----------------------------------------------------------------------
- */
-
-int
-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;
- int anyError;
- Window parent;
- Tk_ErrorHandler handler;
- Container *containerPtr;
- XWindowAttributes parentAtts;
- ThreadSpecificData *tsdPtr =
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
-
- 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;
- }
- if (TkpScanWindowId(interp, string, &parent) != TCL_OK) {
- return TCL_ERROR;
- }
-
- usePtr = (TkWindow *) Tk_IdToWindow(winPtr->display, parent);
- if (usePtr != NULL && !(usePtr->flags & TK_CONTAINER)) {
- Tcl_SetObjResult(interp, Tcl_ObjPrintf(
- "window \"%s\" doesn't have -container option set",
- usePtr->pathName));
- Tcl_SetErrorCode(interp, "TK", "EMBED", "CONTAINER", NULL);
- return TCL_ERROR;
- }
-
- /*
- * Tk sets the window colormap to the screen default colormap in
- * tkWindow.c:AllocWindow. This doesn't work well for embedded windows. So
- * we override the colormap and visual settings to be the same as the
- * parent window (which is in the container app).
- */
-
- anyError = 0;
- handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
- EmbedErrorProc, &anyError);
- if (!XGetWindowAttributes(winPtr->display, parent, &parentAtts)) {
- anyError = 1;
- }
- XSync(winPtr->display, False);
- Tk_DeleteErrorHandler(handler);
- if (anyError) {
- if (interp != NULL) {
- Tcl_SetObjResult(interp, Tcl_ObjPrintf(
- "couldn't create child of window \"%s\"", string));
- Tcl_SetErrorCode(interp, "TK", "EMBED", "NO_TARGET", NULL);
- }
- return TCL_ERROR;
- }
- Tk_SetWindowVisual(tkwin, parentAtts.visual, parentAtts.depth,
- parentAtts.colormap);
-
- /*
- * Create an event handler to clean up the Container structure when tkwin
- * is eventually deleted.
- */
-
- Tk_CreateEventHandler(tkwin, StructureNotifyMask, EmbeddedEventProc,
- winPtr);
-
- /*
- * Save information about the container and the embedded window in a
- * Container structure. If there is already an existing Container
- * structure, it means that both container and embedded app. are in the
- * same process.
- */
-
- for (containerPtr = tsdPtr->firstContainerPtr; containerPtr != NULL;
- containerPtr = containerPtr->nextPtr) {
- if (containerPtr->parent == parent) {
- winPtr->flags |= TK_BOTH_HALVES;
- containerPtr->parentPtr->flags |= TK_BOTH_HALVES;
- break;
- }
- }
- if (containerPtr == NULL) {
- containerPtr = ckalloc(sizeof(Container));
- containerPtr->parent = parent;
- containerPtr->parentRoot = parentAtts.root;
- containerPtr->parentPtr = NULL;
- containerPtr->wrapper = None;
- containerPtr->nextPtr = tsdPtr->firstContainerPtr;
- tsdPtr->firstContainerPtr = containerPtr;
- }
- containerPtr->embeddedPtr = winPtr;
- winPtr->flags |= TK_EMBEDDED;
- return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpMakeWindow --
- *
- * Create an actual window system window object based on the current
- * attributes of the specified TkWindow.
- *
- * Results:
- * Returns the handle to the new window, or None on failure.
- *
- * Side effects:
- * Creates a new X window.
- *
- *----------------------------------------------------------------------
- */
-
-Window
-TkpMakeWindow(
- TkWindow *winPtr, /* Tk's information about the window that is
- * to be instantiated. */
- Window parent) /* Window system token for the parent in which
- * the window is to be created. */
-{
- Container *containerPtr;
- ThreadSpecificData *tsdPtr =
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
-
- if (winPtr->flags & TK_EMBEDDED) {
- /*
- * This window is embedded. Don't create the new window in the given
- * parent; instead, create it as a child of the root window of the
- * container's screen. The window will get reparented into a wrapper
- * window later.
- */
-
- for (containerPtr = tsdPtr->firstContainerPtr; ;
- containerPtr = containerPtr->nextPtr) {
- if (containerPtr == NULL) {
- Tcl_Panic("TkMakeWindow couldn't find container for window");
- }
- if (containerPtr->embeddedPtr == winPtr) {
- break;
- }
- }
- parent = containerPtr->parentRoot;
- }
-
- return XCreateWindow(winPtr->display, parent, winPtr->changes.x,
- winPtr->changes.y, (unsigned) winPtr->changes.width,
- (unsigned) winPtr->changes.height,
- (unsigned) winPtr->changes.border_width, winPtr->depth,
- InputOutput, winPtr->visual, winPtr->dirtyAtts,
- &winPtr->atts);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpMakeContainer --
- *
- * This function is called to indicate that a particular window will be a
- * container for an embedded application. This changes certain aspects of
- * the window's behavior, such as whether it will receive events anymore.
- *
- * Results:
- * None.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TkpMakeContainer(
- Tk_Window tkwin) /* Token for a window that is about to become
- * a container. */
-{
- TkWindow *winPtr = (TkWindow *) tkwin;
- Container *containerPtr;
- ThreadSpecificData *tsdPtr =
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
-
- /*
- * Register the window as a container so that, for example, we can find
- * out later if the embedded app. is in the same process.
- */
-
- Tk_MakeWindowExist(tkwin);
- containerPtr = ckalloc(sizeof(Container));
- containerPtr->parent = Tk_WindowId(tkwin);
- containerPtr->parentRoot = RootWindowOfScreen(Tk_Screen(tkwin));
- containerPtr->parentPtr = winPtr;
- containerPtr->wrapper = None;
- containerPtr->embeddedPtr = NULL;
- containerPtr->nextPtr = tsdPtr->firstContainerPtr;
- tsdPtr->firstContainerPtr = containerPtr;
- winPtr->flags |= TK_CONTAINER;
-
- /*
- * Request SubstructureNotify events so that we can find out when the
- * embedded application creates its window or attempts to resize it. Also
- * watch Configure events on the container so that we can resize the child
- * to match.
- */
-
- winPtr->atts.event_mask |= SubstructureRedirectMask|SubstructureNotifyMask;
- XSelectInput(winPtr->display, winPtr->window, winPtr->atts.event_mask);
- Tk_CreateEventHandler(tkwin,
- SubstructureNotifyMask|SubstructureRedirectMask,
- ContainerEventProc, winPtr);
- Tk_CreateEventHandler(tkwin, StructureNotifyMask, EmbedStructureProc,
- containerPtr);
- Tk_CreateEventHandler(tkwin, FocusChangeMask, EmbedFocusProc,
- containerPtr);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EmbedErrorProc --
- *
- * This function is invoked if an error occurs while creating an embedded
- * window.
- *
- * Results:
- * Always returns 0 to indicate that the error has been properly handled.
- *
- * Side effects:
- * The integer pointed to by the clientData argument is set to 1.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-EmbedErrorProc(
- ClientData clientData, /* Points to integer to set. */
- XErrorEvent *errEventPtr) /* Points to information about error (not
- * used). */
-{
- int *iPtr = clientData;
-
- *iPtr = 1;
- return 0;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EmbeddedEventProc --
- *
- * This function is invoked by the Tk event dispatcher when various
- * useful events are received for a window that is embedded in another
- * application.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Our internal state gets cleaned up when an embedded window is
- * destroyed.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EmbeddedEventProc(
- ClientData clientData, /* Token for container window. */
- XEvent *eventPtr) /* ResizeRequest event. */
-{
- TkWindow *winPtr = clientData;
-
- if (eventPtr->type == DestroyNotify) {
- EmbedWindowDeleted(winPtr);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * ContainerEventProc --
- *
- * This function is invoked by the Tk event dispatcher when various
- * useful events are received for the children of a container window. It
- * forwards relevant information, such as geometry requests, from the
- * events into the container's application.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Depends on the event. For example, when ConfigureRequest events occur,
- * geometry information gets set for the container window.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-ContainerEventProc(
- ClientData clientData, /* Token for container window. */
- XEvent *eventPtr) /* ResizeRequest event. */
-{
- TkWindow *winPtr = clientData;
- Container *containerPtr;
- Tk_ErrorHandler errHandler;
- ThreadSpecificData *tsdPtr =
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
-
- /*
- * Ignore any X protocol errors that happen in this function (almost any
- * operation could fail, for example, if the embedded application has
- * deleted its window).
- */
-
- errHandler = Tk_CreateErrorHandler(eventPtr->xfocus.display, -1,
- -1, -1, NULL, NULL);
-
- /*
- * Find the Container structure associated with the parent window.
- */
-
- for (containerPtr = tsdPtr->firstContainerPtr;
- containerPtr->parent != eventPtr->xmaprequest.parent;
- containerPtr = containerPtr->nextPtr) {
- if (containerPtr == NULL) {
- Tcl_Panic("ContainerEventProc couldn't find Container record");
- }
- }
-
- if (eventPtr->type == CreateNotify) {
- /*
- * A new child window has been created in the container. Record its id
- * in the Container structure (if more than one child is created, just
- * remember the last one and ignore the earlier ones). Also set the
- * child's size to match the container.
- */
-
- containerPtr->wrapper = eventPtr->xcreatewindow.window;
- XMoveResizeWindow(eventPtr->xcreatewindow.display,
- containerPtr->wrapper, 0, 0,
- (unsigned) Tk_Width((Tk_Window) containerPtr->parentPtr),
- (unsigned) Tk_Height((Tk_Window) containerPtr->parentPtr));
- } else if (eventPtr->type == ConfigureRequest) {
- if ((eventPtr->xconfigurerequest.x != 0)
- || (eventPtr->xconfigurerequest.y != 0)) {
- /*
- * The embedded application is trying to move itself, which isn't
- * legal. At this point, the window hasn't actually moved, but we
- * need to send it a ConfigureNotify event to let it know that its
- * request has been denied. If the embedded application was also
- * trying to resize itself, a ConfigureNotify will be sent by the
- * geometry management code below, so we don't need to do
- * anything. Otherwise, generate a synthetic event.
- */
-
- if ((eventPtr->xconfigurerequest.width == winPtr->changes.width)
- && (eventPtr->xconfigurerequest.height
- == winPtr->changes.height)) {
- EmbedSendConfigure(containerPtr);
- }
- }
- EmbedGeometryRequest(containerPtr,
- eventPtr->xconfigurerequest.width,
- eventPtr->xconfigurerequest.height);
- } else if (eventPtr->type == MapRequest) {
- /*
- * The embedded application's map request was ignored and simply
- * passed on to us, so we have to map the window for it to appear on
- * the screen.
- */
-
- XMapWindow(eventPtr->xmaprequest.display,
- eventPtr->xmaprequest.window);
- } else if (eventPtr->type == DestroyNotify) {
- /*
- * The embedded application is gone. Destroy the container window.
- */
-
- Tk_DestroyWindow((Tk_Window) winPtr);
- }
- Tk_DeleteErrorHandler(errHandler);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EmbedStructureProc --
- *
- * This function is invoked by the Tk event dispatcher when a container
- * window owned by this application gets resized (and also at several
- * other times that we don't care about). This function reflects the size
- * change in the embedded window that corresponds to the container.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The embedded window gets resized to match the container.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EmbedStructureProc(
- ClientData clientData, /* Token for container window. */
- XEvent *eventPtr) /* ResizeRequest event. */
-{
- Container *containerPtr = clientData;
- Tk_ErrorHandler errHandler;
-
- if (eventPtr->type == ConfigureNotify) {
- if (containerPtr->wrapper != None) {
- /*
- * Ignore errors, since the embedded application could have
- * deleted its window.
- */
-
- errHandler = Tk_CreateErrorHandler(eventPtr->xfocus.display, -1,
- -1, -1, NULL, NULL);
- XMoveResizeWindow(eventPtr->xconfigure.display,
- containerPtr->wrapper, 0, 0,
- (unsigned) Tk_Width((Tk_Window) containerPtr->parentPtr),
- (unsigned) Tk_Height((Tk_Window) containerPtr->parentPtr));
- Tk_DeleteErrorHandler(errHandler);
- }
- } else if (eventPtr->type == DestroyNotify) {
- EmbedWindowDeleted(containerPtr->parentPtr);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EmbedFocusProc --
- *
- * This function is invoked by the Tk event dispatcher when FocusIn and
- * FocusOut events occur for a container window owned by this
- * application. It is responsible for moving the focus back and forth
- * between a container application and an embedded application.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The X focus may change.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EmbedFocusProc(
- ClientData clientData, /* Token for container window. */
- XEvent *eventPtr) /* ResizeRequest event. */
-{
- Container *containerPtr = clientData;
- Tk_ErrorHandler errHandler;
- Display *display;
-
- display = Tk_Display(containerPtr->parentPtr);
- if (eventPtr->type == FocusIn) {
- /*
- * The focus just arrived at the container. Change the X focus to move
- * it to the embedded application, if there is one. Ignore X errors
- * that occur during this operation (it's possible that the new focus
- * window isn't mapped).
- */
-
- if (containerPtr->wrapper != None) {
- errHandler = Tk_CreateErrorHandler(eventPtr->xfocus.display, -1,
- -1, -1, NULL, NULL);
- XSetInputFocus(display, containerPtr->wrapper, RevertToParent,
- CurrentTime);
- Tk_DeleteErrorHandler(errHandler);
- }
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EmbedGeometryRequest --
- *
- * This function is invoked when an embedded application requests a
- * particular size. It processes the request (which may or may not
- * actually honor the request) and reflects the results back to the
- * embedded application.
- *
- * Results:
- * None.
- *
- * Side effects:
- * If we deny the child's size change request, a Configure event is
- * synthesized to let the child know how big it ought to be. Events get
- * processed while we're waiting for the geometry managers to do their
- * thing.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EmbedGeometryRequest(
- Container *containerPtr, /* Information about the embedding. */
- int width, int height) /* Size that the child has requested. */
-{
- TkWindow *winPtr = containerPtr->parentPtr;
-
- /*
- * Forward the requested size into our geometry management hierarchy via
- * the container window. We need to send a Configure event back to the
- * embedded application if we decide not to honor its request; to make
- * this happen, process all idle event handlers synchronously here (so
- * that the geometry managers have had a chance to do whatever they want
- * to do), and if the window's size didn't change then generate a
- * configure event.
- */
-
- Tk_GeometryRequest((Tk_Window) winPtr, width, height);
- while (Tcl_DoOneEvent(TCL_IDLE_EVENTS)) {
- /* Empty loop body. */
- }
- if ((winPtr->changes.width != width)
- || (winPtr->changes.height != height)) {
- EmbedSendConfigure(containerPtr);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EmbedSendConfigure --
- *
- * This function synthesizes a ConfigureNotify event to notify an
- * embedded application of its current size and location. This function
- * is called when the embedded application made a geometry request that
- * we did not grant, so that the embedded application knows that its
- * geometry didn't change after all.
- *
- * Results:
- * None.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EmbedSendConfigure(
- Container *containerPtr) /* Information about the embedding. */
-{
- TkWindow *winPtr = containerPtr->parentPtr;
- XEvent event;
-
- event.xconfigure.type = ConfigureNotify;
- event.xconfigure.serial = LastKnownRequestProcessed(winPtr->display);
- event.xconfigure.send_event = True;
- event.xconfigure.display = winPtr->display;
- event.xconfigure.event = containerPtr->wrapper;
- event.xconfigure.window = containerPtr->wrapper;
- event.xconfigure.x = 0;
- event.xconfigure.y = 0;
- event.xconfigure.width = winPtr->changes.width;
- event.xconfigure.height = winPtr->changes.height;
- event.xconfigure.above = None;
- event.xconfigure.override_redirect = False;
-
- /*
- * Note: when sending the event below, the ButtonPressMask causes the
- * event to be sent only to applications that have selected for
- * ButtonPress events, which should be just the embedded application.
- */
-
- XSendEvent(winPtr->display, containerPtr->wrapper, False,
- 0, &event);
-
- /*
- * The following needs to be done if the embedded window is not in the
- * same application as the container window.
- */
-
- if (containerPtr->embeddedPtr == NULL) {
- XMoveResizeWindow(winPtr->display, containerPtr->wrapper, 0, 0,
- (unsigned) winPtr->changes.width,
- (unsigned) winPtr->changes.height);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpGetOtherWindow --
- *
- * If both the container and embedded window are in the same process,
- * this function 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;
- ThreadSpecificData *tsdPtr =
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
-
- for (containerPtr = tsdPtr->firstContainerPtr;
- containerPtr != NULL;
- containerPtr = containerPtr->nextPtr) {
- if (containerPtr->embeddedPtr == winPtr) {
- return containerPtr->parentPtr;
- } else if (containerPtr->parentPtr == winPtr) {
- return containerPtr->embeddedPtr;
- }
- }
- return NULL;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpRedirectKeyEvent --
- *
- * This function is invoked when a key press or release event arrives for
- * an application that does not believe it owns the input focus. This can
- * happen because of embedding; for example, X can send an event to an
- * embedded application when the real focus window is in the container
- * application and is an ancestor of the container. This function's job
- * is to forward the event back to the application where it really
- * belongs.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The event may get sent to a different application.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TkpRedirectKeyEvent(
- TkWindow *winPtr, /* Window to which the event was originally
- * reported. */
- XEvent *eventPtr) /* X event to redirect (should be KeyPress or
- * KeyRelease). */
-{
- Container *containerPtr;
- Window saved;
- ThreadSpecificData *tsdPtr =
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
-
- /*
- * First, find the top-level window corresponding to winPtr.
- */
-
- while (1) {
- if (winPtr == NULL) {
- /*
- * This window is being deleted. This is too confusing a case to
- * handle so discard the event.
- */
-
- return;
- }
- if (winPtr->flags & TK_TOP_HIERARCHY) {
- break;
- }
- winPtr = winPtr->parentPtr;
- }
-
- if (winPtr->flags & TK_EMBEDDED) {
- /*
- * This application is embedded. If we got a key event without
- * officially having the focus, it means that the focus is really in
- * the container, but the mouse was over the embedded application.
- * Send the event back to the container.
- */
-
- for (containerPtr = tsdPtr->firstContainerPtr;
- containerPtr->embeddedPtr != winPtr;
- containerPtr = containerPtr->nextPtr) {
- /* Empty loop body. */
- }
- saved = eventPtr->xkey.window;
- eventPtr->xkey.window = containerPtr->parent;
- XSendEvent(eventPtr->xkey.display, eventPtr->xkey.window, False,
- KeyPressMask|KeyReleaseMask, eventPtr);
- eventPtr->xkey.window = saved;
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpClaimFocus --
- *
- * This function is invoked when someone asks or the input focus to be
- * put on a window in an embedded application, but the application
- * doesn't currently have the focus. It requests the input focus from the
- * container application.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The input focus may change.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TkpClaimFocus(
- TkWindow *topLevelPtr, /* Top-level window containing desired focus
- * window; should be embedded. */
- int force) /* One means that the container should claim
- * the focus if it doesn't currently have
- * it. */
-{
- XEvent event;
- Container *containerPtr;
- ThreadSpecificData *tsdPtr =
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
-
- if (!(topLevelPtr->flags & TK_EMBEDDED)) {
- return;
- }
-
- for (containerPtr = tsdPtr->firstContainerPtr;
- containerPtr->embeddedPtr != topLevelPtr;
- containerPtr = containerPtr->nextPtr) {
- /* Empty loop body. */
- }
-
- event.xfocus.type = FocusIn;
- event.xfocus.serial = LastKnownRequestProcessed(topLevelPtr->display);
- event.xfocus.send_event = 1;
- event.xfocus.display = topLevelPtr->display;
- event.xfocus.window = containerPtr->parent;
- event.xfocus.mode = EMBEDDED_APP_WANTS_FOCUS;
- event.xfocus.detail = force;
- XSendEvent(event.xfocus.display, event.xfocus.window, False, 0, &event);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpTestembedCmd --
- *
- * This function implements the "testembed" command. It returns some or
- * all of the information in the list pointed to by firstContainerPtr.
- *
- * Results:
- * A standard Tcl result.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TkpTestembedCmd(
- 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];
- ThreadSpecificData *tsdPtr =
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
-
- if ((objc > 1) && (strcmp(Tcl_GetString(objv[1]), "all") == 0)) {
- all = 1;
- } else {
- all = 0;
- }
- Tcl_DStringInit(&dString);
- for (containerPtr = tsdPtr->firstContainerPtr; containerPtr != NULL;
- containerPtr = containerPtr->nextPtr) {
- Tcl_DStringStartSublist(&dString);
- if (containerPtr->parent == None) {
- Tcl_DStringAppendElement(&dString, "");
- } else if (all) {
- sprintf(buffer, "0x%x", (int) containerPtr->parent);
- Tcl_DStringAppendElement(&dString, buffer);
- } else {
- Tcl_DStringAppendElement(&dString, "XXX");
- }
- if (containerPtr->parentPtr == NULL) {
- Tcl_DStringAppendElement(&dString, "");
- } else {
- Tcl_DStringAppendElement(&dString,
- containerPtr->parentPtr->pathName);
- }
- if (containerPtr->wrapper == None) {
- Tcl_DStringAppendElement(&dString, "");
- } else if (all) {
- sprintf(buffer, "0x%x", (int) containerPtr->wrapper);
- Tcl_DStringAppendElement(&dString, buffer);
- } else {
- Tcl_DStringAppendElement(&dString, "XXX");
- }
- if (containerPtr->embeddedPtr == NULL) {
- Tcl_DStringAppendElement(&dString, "");
- } else {
- Tcl_DStringAppendElement(&dString,
- containerPtr->embeddedPtr->pathName);
- }
- Tcl_DStringEndSublist(&dString);
- }
- Tcl_DStringResult(interp, &dString);
- return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EmbedWindowDeleted --
- *
- * This function is invoked when a window involved in embedding (as
- * either the container or the embedded application) is destroyed. It
- * cleans up the Container structure for the window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * A Container structure may be freed.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EmbedWindowDeleted(
- TkWindow *winPtr) /* Tk's information about window that was
- * deleted. */
-{
- Container *containerPtr, *prevPtr;
- ThreadSpecificData *tsdPtr =
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
-
- /*
- * Find the Container structure for this window work. Delete the
- * information about the embedded application and free the container's
- * record.
- */
-
- prevPtr = NULL;
- containerPtr = tsdPtr->firstContainerPtr;
- while (1) {
- if (containerPtr->embeddedPtr == winPtr) {
- containerPtr->wrapper = None;
- containerPtr->embeddedPtr = NULL;
- break;
- }
- if (containerPtr->parentPtr == winPtr) {
- containerPtr->parentPtr = NULL;
- break;
- }
- prevPtr = containerPtr;
- containerPtr = containerPtr->nextPtr;
- }
- if ((containerPtr->embeddedPtr == NULL)
- && (containerPtr->parentPtr == NULL)) {
- if (prevPtr == NULL) {
- tsdPtr->firstContainerPtr = containerPtr->nextPtr;
- } else {
- prevPtr->nextPtr = containerPtr->nextPtr;
- }
- ckfree(containerPtr);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkUnixContainerId --
- *
- * Given an embedded window, this function returns the X window
- * identifier for the associated container window.
- *
- * Results:
- * The return value is the X window identifier for winPtr's container
- * window.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-Window
-TkUnixContainerId(
- TkWindow *winPtr) /* Tk's structure for an embedded window. */
-{
- Container *containerPtr;
- ThreadSpecificData *tsdPtr =
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
-
- for (containerPtr = tsdPtr->firstContainerPtr;
- containerPtr != NULL; containerPtr = containerPtr->nextPtr) {
- if (containerPtr->embeddedPtr == winPtr) {
- return containerPtr->parent;
- }
- }
- Tcl_Panic("TkUnixContainerId couldn't find window");
- return None;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpShowBusyWindow --
- *
- * Makes a busy window "appear".
- *
- * Results:
- * None.
- *
- * Side effects:
- * Arranges for the busy window to start intercepting events and the
- * cursor to change to the configured "hey, I'm busy!" setting.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TkpShowBusyWindow(
- TkBusy busy)
-{
- Busy *busyPtr = (Busy *) busy;
-
- if (busyPtr->tkBusy != NULL) {
- Tk_MapWindow(busyPtr->tkBusy);
-
- /*
- * Always raise the busy window just in case new sibling windows have
- * been created in the meantime. Can't use Tk_RestackWindow because it
- * doesn't work under Win32.
- */
-
- XRaiseWindow(Tk_Display(busyPtr->tkBusy),
- Tk_WindowId(busyPtr->tkBusy));
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpHideBusyWindow --
- *
- * Makes a busy window "disappear".
- *
- * Results:
- * None.
- *
- * Side effects:
- * Arranges for the busy window to stop intercepting events, and the
- * cursor to change back to its normal setting.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TkpHideBusyWindow(
- TkBusy busy)
-{
- Busy *busyPtr = (Busy *) busy;
-
- if (busyPtr->tkBusy != NULL) {
- Tk_UnmapWindow(busyPtr->tkBusy);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpMakeTransparentWindowExist --
- *
- * Construct the platform-specific resources for a transparent window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Moves the specified window in the stacking order.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TkpMakeTransparentWindowExist(
- Tk_Window tkwin, /* Token for window. */
- Window parent) /* Parent window. */
-{
- TkWindow *winPtr = (TkWindow *) tkwin;
- long int mask = CWDontPropagate | CWEventMask;
-
- /*
- * Ignore the important events while the window is mapped.
- */
-
-#define USER_EVENTS \
- (EnterWindowMask | LeaveWindowMask | KeyPressMask | KeyReleaseMask | \
- ButtonPressMask | ButtonReleaseMask | PointerMotionMask)
-#define PROP_EVENTS \
- (KeyPressMask | KeyReleaseMask | ButtonPressMask | \
- ButtonReleaseMask | PointerMotionMask)
-
- winPtr->atts.do_not_propagate_mask = PROP_EVENTS;
- winPtr->atts.event_mask = USER_EVENTS;
- winPtr->changes.border_width = 0;
- winPtr->depth = 0;
-
- winPtr->window = XCreateWindow(winPtr->display, parent,
- winPtr->changes.x, winPtr->changes.y,
- (unsigned) winPtr->changes.width, /* width */
- (unsigned) winPtr->changes.height, /* height */
- (unsigned) winPtr->changes.border_width, /* border_width */
- winPtr->depth, InputOnly, winPtr->visual, mask, &winPtr->atts);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpCreateBusy --
- *
- * Construct the platform-specific parts of a busy window. Note that this
- * postpones the actual creation of the window resource until later.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Sets up part of the busy window structure.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TkpCreateBusy(
- Tk_FakeWin *winPtr,
- Tk_Window tkRef,
- Window *parentPtr,
- Tk_Window tkParent,
- TkBusy busy)
-{
- Window root, parent, *dummy;
- unsigned int count;
-
- if (winPtr->flags & TK_REPARENTED) {
- /*
- * This works around a bug in the implementation of menubars for
- * non-MacIntosh window systems (Win32 and X11). Tk doesn't reset the
- * pointers to the parent window when the menu is reparented (since
- * winPtr->parentPtr points to the wrong window). We get around this
- * by determining the parent via the native API calls.
- */
-
- if (XQueryTree(Tk_Display(tkRef), Tk_WindowId(tkRef), &root,
- &parent, &dummy, &count) > 0) {
- XFree(dummy);
- *parentPtr = parent;
- } else {
- *parentPtr = None;
- }
- } else {
- *parentPtr = Tk_WindowId(tkParent);
- }
-}
-
-/*
- * Local Variables:
- * mode: c
- * c-basic-offset: 4
- * fill-column: 78
- * End:
- */