/* Copyright (c) 2006, Red Hat, Inc. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice (including the next paragraph) shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Copyright 1987, 1998 The Open Group Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of The Open Group shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from The Open Group. Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts, All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Digital not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* The panoramix components contained the following notice */ /***************************************************************** Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING, BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of Digital Equipment Corporation shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from Digital Equipment Corporation. ******************************************************************/ #ifdef HAVE_DIX_CONFIG_H #include #endif #include "misc.h" #include "scrnintstr.h" #include "os.h" #include "regionstr.h" #include "validate.h" #include "windowstr.h" #include "propertyst.h" #include "input.h" #include "inputstr.h" #include "resource.h" #include "colormapst.h" #include "cursorstr.h" #include "dixstruct.h" #include "gcstruct.h" #include "servermd.h" #include "mivalidate.h" #ifdef PANORAMIX #include "panoramiX.h" #include "panoramiXsrv.h" #endif #include "dixevents.h" #include "globals.h" #include "mi.h" /* miPaintWindow */ #ifdef COMPOSITE #include "compint.h" #endif #include "selection.h" #include "inpututils.h" #include "privates.h" #include "xace.h" #include "exevents.h" #include /* must come after server includes */ /****** * Window stuff for server * * CreateRootWindow, CreateWindow, ChangeWindowAttributes, * GetWindowAttributes, DeleteWindow, DestroySubWindows, * HandleSaveSet, ReparentWindow, MapWindow, MapSubWindows, * UnmapWindow, UnmapSubWindows, ConfigureWindow, CirculateWindow, * ChangeWindowDeviceCursor ******/ Bool bgNoneRoot = FALSE; static unsigned char _back_lsb[4] = { 0x88, 0x22, 0x44, 0x11 }; static unsigned char _back_msb[4] = { 0x11, 0x44, 0x22, 0x88 }; static Bool WindowParentHasDeviceCursor(WindowPtr pWin, DeviceIntPtr pDev, CursorPtr pCurs); static Bool WindowSeekDeviceCursor(WindowPtr pWin, DeviceIntPtr pDev, DevCursNodePtr * pNode, DevCursNodePtr * pPrev); int screenIsSaved = SCREEN_SAVER_OFF; static Bool TileScreenSaver(ScreenPtr pScreen, int kind); #define INPUTONLY_LEGAL_MASK (CWWinGravity | CWEventMask | \ CWDontPropagate | CWOverrideRedirect | CWCursor ) #define BOXES_OVERLAP(b1, b2) \ (!( ((b1)->x2 <= (b2)->x1) || \ ( ((b1)->x1 >= (b2)->x2)) || \ ( ((b1)->y2 <= (b2)->y1)) || \ ( ((b1)->y1 >= (b2)->y2)) ) ) #define RedirectSend(pWin) \ ((pWin->eventMask|wOtherEventMasks(pWin)) & SubstructureRedirectMask) #define SubSend(pWin) \ ((pWin->eventMask|wOtherEventMasks(pWin)) & SubstructureNotifyMask) #define StrSend(pWin) \ ((pWin->eventMask|wOtherEventMasks(pWin)) & StructureNotifyMask) #define SubStrSend(pWin,pParent) (StrSend(pWin) || SubSend(pParent)) #ifdef COMPOSITE static const char *overlay_win_name = ""; #endif static const char * get_window_name(WindowPtr pWin) { #define WINDOW_NAME_BUF_LEN 512 PropertyPtr prop; static char buf[WINDOW_NAME_BUF_LEN]; int len; #ifdef COMPOSITE CompScreenPtr comp_screen = GetCompScreen(pWin->drawable.pScreen); if (comp_screen && pWin == comp_screen->pOverlayWin) return overlay_win_name; #endif for (prop = wUserProps(pWin); prop; prop = prop->next) { if (prop->propertyName == XA_WM_NAME && prop->type == XA_STRING && prop->data) { len = min(prop->size, WINDOW_NAME_BUF_LEN - 1); memcpy(buf, prop->data, len); buf[len] = '\0'; return buf; } } return NULL; #undef WINDOW_NAME_BUF_LEN } static void log_window_info(WindowPtr pWin, int depth) { int i; const char *win_name, *visibility; BoxPtr rects; for (i = 0; i < (depth << 2); i++) ErrorF(" "); win_name = get_window_name(pWin); ErrorF("win 0x%.8x (%s), [%d, %d] to [%d, %d]", (unsigned) pWin->drawable.id, win_name ? win_name : "no name", pWin->drawable.x, pWin->drawable.y, pWin->drawable.x + pWin->drawable.width, pWin->drawable.y + pWin->drawable.height); if (pWin->overrideRedirect) ErrorF(" (override redirect)"); #ifdef COMPOSITE if (pWin->redirectDraw) ErrorF(" (%s compositing: pixmap %x)", (pWin->redirectDraw == RedirectDrawAutomatic) ? "automatic" : "manual", (unsigned) pWin->drawable.pScreen->GetWindowPixmap(pWin)->drawable.id); #endif switch (pWin->visibility) { case VisibilityUnobscured: visibility = "unobscured"; break; case VisibilityPartiallyObscured: visibility = "partially obscured"; break; case VisibilityFullyObscured: visibility = "fully obscured"; break; case VisibilityNotViewable: visibility = "unviewable"; break; } ErrorF(", %s", visibility); if (RegionNotEmpty(&pWin->clipList)) { ErrorF(", clip list:"); rects = RegionRects(&pWin->clipList); for (i = 0; i < RegionNumRects(&pWin->clipList); i++) ErrorF(" [(%d, %d) to (%d, %d)]", rects[i].x1, rects[i].y1, rects[i].x2, rects[i].y2); ErrorF("; extents [(%d, %d) to (%d, %d)]", pWin->clipList.extents.x1, pWin->clipList.extents.y1, pWin->clipList.extents.x2, pWin->clipList.extents.y2); } ErrorF("\n"); } static const char* grab_grabtype_to_text(GrabPtr pGrab) { switch (pGrab->grabtype) { case XI2: return "xi2"; case CORE: return "core"; default: return "xi1"; } } static const char* grab_type_to_text(GrabPtr pGrab) { switch (pGrab->type) { case ButtonPress: return "ButtonPress"; case KeyPress: return "KeyPress"; case XI_Enter: return "XI_Enter"; case XI_FocusIn: return "XI_FocusIn"; default: return "unknown?!"; } } static void log_grab_info(void *value, XID id, void *cdata) { int i, j; GrabPtr pGrab = (GrabPtr)value; ErrorF(" grab 0x%lx (%s), type '%s' on window 0x%lx\n", (unsigned long) pGrab->resource, grab_grabtype_to_text(pGrab), grab_type_to_text(pGrab), (unsigned long) pGrab->window->drawable.id); ErrorF(" detail %d (mask %lu), modifiersDetail %d (mask %lu)\n", pGrab->detail.exact, pGrab->detail.pMask ? (unsigned long) *(pGrab->detail.pMask) : 0, pGrab->modifiersDetail.exact, pGrab->modifiersDetail.pMask ? (unsigned long) *(pGrab->modifiersDetail.pMask) : (unsigned long) 0); ErrorF(" device '%s' (%d), modifierDevice '%s' (%d)\n", pGrab->device->name, pGrab->device->id, pGrab->modifierDevice->name, pGrab->modifierDevice->id); if (pGrab->grabtype == CORE) { ErrorF(" core event mask 0x%lx\n", (unsigned long) pGrab->eventMask); } else if (pGrab->grabtype == XI) { ErrorF(" xi1 event mask 0x%lx\n", (unsigned long) pGrab->eventMask); } else if (pGrab->grabtype == XI2) { for (i = 0; i < xi2mask_num_masks(pGrab->xi2mask); i++) { const unsigned char *mask; int print; print = 0; for (j = 0; j < XI2MASKSIZE; j++) { mask = xi2mask_get_one_mask(pGrab->xi2mask, i); if (mask[j]) { print = 1; break; } } if (!print) continue; ErrorF(" xi2 event mask 0x"); for (j = 0; j < xi2mask_mask_size(pGrab->xi2mask); j++) ErrorF("%x ", mask[j]); ErrorF("\n"); } } ErrorF(" owner-events %s, kb %d ptr %d, confine 0x%lx, cursor 0x%lx\n", pGrab->ownerEvents ? "true" : "false", pGrab->keyboardMode, pGrab->pointerMode, pGrab->confineTo ? (unsigned long) pGrab->confineTo->drawable.id : 0, pGrab->cursor ? (unsigned long) pGrab->cursor->id : 0); } void PrintPassiveGrabs(void) { int i; LocalClientCredRec *lcc; pid_t clientpid; const char *cmdname; const char *cmdargs; ErrorF("Printing all currently registered grabs\n"); for (i = 1; i < currentMaxClients; i++) { if (!clients[i] || clients[i]->clientState != ClientStateRunning) continue; clientpid = GetClientPid(clients[i]); cmdname = GetClientCmdName(clients[i]); cmdargs = GetClientCmdArgs(clients[i]); if ((clientpid > 0) && (cmdname != NULL)) { ErrorF(" Printing all registered grabs of client pid %ld %s %s\n", (long) clientpid, cmdname, cmdargs ? cmdargs : ""); } else { if (GetLocalClientCreds(clients[i], &lcc) == -1) { ErrorF(" GetLocalClientCreds() failed\n"); continue; } ErrorF(" Printing all registered grabs of client pid %ld uid %ld gid %ld\n", (lcc->fieldsSet & LCC_PID_SET) ? (long) lcc->pid : 0, (lcc->fieldsSet & LCC_UID_SET) ? (long) lcc->euid : 0, (lcc->fieldsSet & LCC_GID_SET) ? (long) lcc->egid : 0); FreeLocalClientCreds(lcc); } FindClientResourcesByType(clients[i], RT_PASSIVEGRAB, log_grab_info, NULL); } ErrorF("End list of registered passive grabs\n"); } void PrintWindowTree(void) { int scrnum, depth; ScreenPtr pScreen; WindowPtr pWin; for (scrnum = 0; scrnum < screenInfo.numScreens; scrnum++) { pScreen = screenInfo.screens[scrnum]; ErrorF("[dix] Dumping windows for screen %d (pixmap %x):\n", scrnum, (unsigned) pScreen->GetScreenPixmap(pScreen)->drawable.id); pWin = pScreen->root; depth = 1; while (pWin) { log_window_info(pWin, depth); if (pWin->firstChild) { pWin = pWin->firstChild; depth++; continue; } while (pWin && !pWin->nextSib) { pWin = pWin->parent; depth--; } if (!pWin) break; pWin = pWin->nextSib; } } } int TraverseTree(WindowPtr pWin, VisitWindowProcPtr func, void *data) { int result; WindowPtr pChild; if (!(pChild = pWin)) return WT_NOMATCH; while (1) { result = (*func) (pChild, data); if (result == WT_STOPWALKING) return WT_STOPWALKING; if ((result == WT_WALKCHILDREN) && pChild->firstChild) { pChild = pChild->firstChild; continue; } while (!pChild->nextSib && (pChild != pWin)) pChild = pChild->parent; if (pChild == pWin) break; pChild = pChild->nextSib; } return WT_NOMATCH; } /***** * WalkTree * Walk the window tree, for SCREEN, performing FUNC(pWin, data) on * each window. If FUNC returns WT_WALKCHILDREN, traverse the children, * if it returns WT_DONTWALKCHILDREN, don't. If it returns WT_STOPWALKING, * exit WalkTree. Does depth-first traverse. *****/ int WalkTree(ScreenPtr pScreen, VisitWindowProcPtr func, void *data) { return (TraverseTree(pScreen->root, func, data)); } /* hack to force no backing store */ Bool disableBackingStore = FALSE; Bool enableBackingStore = FALSE; static void SetWindowToDefaults(WindowPtr pWin) { pWin->prevSib = NullWindow; pWin->firstChild = NullWindow; pWin->lastChild = NullWindow; pWin->valdata = NULL; pWin->optional = NULL; pWin->cursorIsNone = TRUE; pWin->backingStore = NotUseful; pWin->mapped = FALSE; /* off */ pWin->realized = FALSE; /* off */ pWin->viewable = FALSE; pWin->visibility = VisibilityNotViewable; pWin->overrideRedirect = FALSE; pWin->saveUnder = FALSE; pWin->bitGravity = ForgetGravity; pWin->winGravity = NorthWestGravity; pWin->eventMask = 0; pWin->deliverableEvents = 0; pWin->dontPropagate = 0; pWin->redirectDraw = RedirectDrawNone; pWin->forcedBG = FALSE; pWin->unhittable = FALSE; #ifdef COMPOSITE pWin->damagedDescendants = FALSE; #endif } static void MakeRootTile(WindowPtr pWin) { ScreenPtr pScreen = pWin->drawable.pScreen; GCPtr pGC; unsigned char back[128]; int len = BitmapBytePad(sizeof(long)); unsigned char *from, *to; int i, j; pWin->background.pixmap = (*pScreen->CreatePixmap) (pScreen, 4, 4, pScreen->rootDepth, 0); pWin->backgroundState = BackgroundPixmap; pGC = GetScratchGC(pScreen->rootDepth, pScreen); if (!pWin->background.pixmap || !pGC) FatalError("could not create root tile"); { ChangeGCVal attributes[2]; attributes[0].val = pScreen->whitePixel; attributes[1].val = pScreen->blackPixel; (void) ChangeGC(NullClient, pGC, GCForeground | GCBackground, attributes); } ValidateGC((DrawablePtr) pWin->background.pixmap, pGC); from = (screenInfo.bitmapBitOrder == LSBFirst) ? _back_lsb : _back_msb; to = back; for (i = 4; i > 0; i--, from++) for (j = len; j > 0; j--) *to++ = *from; (*pGC->ops->PutImage) ((DrawablePtr) pWin->background.pixmap, pGC, 1, 0, 0, len, 4, 0, XYBitmap, (char *) back); FreeScratchGC(pGC); } /***** * CreateRootWindow * Makes a window at initialization time for specified screen *****/ Bool CreateRootWindow(ScreenPtr pScreen) { WindowPtr pWin; BoxRec box; PixmapFormatRec *format; pWin = dixAllocateScreenObjectWithPrivates(pScreen, WindowRec, PRIVATE_WINDOW); if (!pWin) return FALSE; pScreen->screensaver.pWindow = NULL; pScreen->screensaver.wid = FakeClientID(0); pScreen->screensaver.ExternalScreenSaver = NULL; screenIsSaved = SCREEN_SAVER_OFF; pScreen->root = pWin; pWin->drawable.pScreen = pScreen; pWin->drawable.type = DRAWABLE_WINDOW; pWin->drawable.depth = pScreen->rootDepth; for (format = screenInfo.formats; format->depth != pScreen->rootDepth; format++); pWin->drawable.bitsPerPixel = format->bitsPerPixel; pWin->drawable.serialNumber = NEXT_SERIAL_NUMBER; pWin->parent = NullWindow; SetWindowToDefaults(pWin); pWin->optional = malloc(sizeof(WindowOptRec)); if (!pWin->optional) return FALSE; pWin->optional->dontPropagateMask = 0; pWin->optional->otherEventMasks = 0; pWin->optional->otherClients = NULL; pWin->optional->passiveGrabs = NULL; pWin->optional->userProps = NULL; pWin->optional->backingBitPlanes = ~0L; pWin->optional->backingPixel = 0; pWin->optional->boundingShape = NULL; pWin->optional->clipShape = NULL; pWin->optional->inputShape = NULL; pWin->optional->inputMasks = NULL; pWin->optional->deviceCursors = NULL; pWin->optional->colormap = pScreen->defColormap; pWin->optional->visual = pScreen->rootVisual; pWin->nextSib = NullWindow; pWin->drawable.id = FakeClientID(0); pWin->origin.x = pWin->origin.y = 0; pWin->drawable.height = pScreen->height; pWin->drawable.width = pScreen->width; pWin->drawable.x = pWin->drawable.y = 0; box.x1 = 0; box.y1 = 0; box.x2 = pScreen->width; box.y2 = pScreen->height; RegionInit(&pWin->clipList, &box, 1); RegionInit(&pWin->winSize, &box, 1); RegionInit(&pWin->borderSize, &box, 1); RegionInit(&pWin->borderClip, &box, 1); pWin->drawable.class = InputOutput; pWin->optional->visual = pScreen->rootVisual; pWin->backgroundState = BackgroundPixel; pWin->background.pixel = pScreen->whitePixel; pWin->borderIsPixel = TRUE; pWin->border.pixel = pScreen->blackPixel; pWin->borderWidth = 0; /* security creation/labeling check */ if (XaceHook(XACE_RESOURCE_ACCESS, serverClient, pWin->drawable.id, RT_WINDOW, pWin, RT_NONE, NULL, DixCreateAccess)) return FALSE; if (!AddResource(pWin->drawable.id, RT_WINDOW, (void *) pWin)) return FALSE; if (disableBackingStore) pScreen->backingStoreSupport = NotUseful; if (enableBackingStore) pScreen->backingStoreSupport = WhenMapped; #ifdef COMPOSITE if (noCompositeExtension) pScreen->backingStoreSupport = NotUseful; #endif pScreen->saveUnderSupport = NotUseful; return TRUE; } void InitRootWindow(WindowPtr pWin) { ScreenPtr pScreen = pWin->drawable.pScreen; int backFlag = CWBorderPixel | CWCursor | CWBackingStore; if (!(*pScreen->CreateWindow) (pWin)) return; /* XXX */ (*pScreen->PositionWindow) (pWin, 0, 0); pWin->cursorIsNone = FALSE; pWin->optional->cursor = RefCursor(rootCursor); if (party_like_its_1989) { MakeRootTile(pWin); backFlag |= CWBackPixmap; } else if (pScreen->canDoBGNoneRoot && bgNoneRoot) { pWin->backgroundState = XaceBackgroundNoneState(pWin); pWin->background.pixel = pScreen->whitePixel; backFlag |= CWBackPixmap; } else { pWin->backgroundState = BackgroundPixel; if (whiteRoot) pWin->background.pixel = pScreen->whitePixel; else pWin->background.pixel = pScreen->blackPixel; backFlag |= CWBackPixel; } pWin->backingStore = NotUseful; /* We SHOULD check for an error value here XXX */ (*pScreen->ChangeWindowAttributes) (pWin, backFlag); MapWindow(pWin, serverClient); } /* Set the region to the intersection of the rectangle and the * window's winSize. The window is typically the parent of the * window from which the region came. */ static void ClippedRegionFromBox(WindowPtr pWin, RegionPtr Rgn, int x, int y, int w, int h) { BoxRec box = *RegionExtents(&pWin->winSize); /* we do these calculations to avoid overflows */ if (x > box.x1) box.x1 = x; if (y > box.y1) box.y1 = y; x += w; if (x < box.x2) box.x2 = x; y += h; if (y < box.y2) box.y2 = y; if (box.x1 > box.x2) box.x2 = box.x1; if (box.y1 > box.y2) box.y2 = box.y1; RegionReset(Rgn, &box); RegionIntersect(Rgn, Rgn, &pWin->winSize); } static RealChildHeadProc realChildHeadProc = NULL; void RegisterRealChildHeadProc(RealChildHeadProc proc) { realChildHeadProc = proc; } WindowPtr RealChildHead(WindowPtr pWin) { if (realChildHeadProc) { return realChildHeadProc(pWin); } if (!pWin->parent && (screenIsSaved == SCREEN_SAVER_ON) && (HasSaverWindow(pWin->drawable.pScreen))) return pWin->firstChild; else return NullWindow; } /***** * CreateWindow * Makes a window in response to client request *****/ WindowPtr CreateWindow(Window wid, WindowPtr pParent, int x, int y, unsigned w, unsigned h, unsigned bw, unsigned class, Mask vmask, XID *vlist, int depth, ClientPtr client, VisualID visual, int *error) { WindowPtr pWin; WindowPtr pHead; ScreenPtr pScreen; int idepth, ivisual; Bool fOK; DepthPtr pDepth; PixmapFormatRec *format; WindowOptPtr ancwopt; if (class == CopyFromParent) class = pParent->drawable.class; if ((class != InputOutput) && (class != InputOnly)) { *error = BadValue; client->errorValue = class; return NullWindow; } if ((class != InputOnly) && (pParent->drawable.class == InputOnly)) { *error = BadMatch; return NullWindow; } if ((class == InputOnly) && ((bw != 0) || (depth != 0))) { *error = BadMatch; return NullWindow; } pScreen = pParent->drawable.pScreen; if ((class == InputOutput) && (depth == 0)) depth = pParent->drawable.depth; ancwopt = pParent->optional; if (!ancwopt) ancwopt = FindWindowWithOptional(pParent)->optional; if (visual == CopyFromParent) { visual = ancwopt->visual; } /* Find out if the depth and visual are acceptable for this Screen */ if ((visual != ancwopt->visual) || (depth != pParent->drawable.depth)) { fOK = FALSE; for (idepth = 0; idepth < pScreen->numDepths; idepth++) { pDepth = (DepthPtr) &pScreen->allowedDepths[idepth]; if ((depth == pDepth->depth) || (depth == 0)) { for (ivisual = 0; ivisual < pDepth->numVids; ivisual++) { if (visual == pDepth->vids[ivisual]) { fOK = TRUE; break; } } } } if (fOK == FALSE) { *error = BadMatch; return NullWindow; } } if (((vmask & (CWBorderPixmap | CWBorderPixel)) == 0) && (class != InputOnly) && (depth != pParent->drawable.depth)) { *error = BadMatch; return NullWindow; } if (((vmask & CWColormap) == 0) && (class != InputOnly) && ((visual != ancwopt->visual) || (ancwopt->colormap == None))) { *error = BadMatch; return NullWindow; } pWin = dixAllocateScreenObjectWithPrivates(pScreen, WindowRec, PRIVATE_WINDOW); if (!pWin) { *error = BadAlloc; return NullWindow; } pWin->drawable = pParent->drawable; pWin->drawable.depth = depth; if (depth == pParent->drawable.depth) pWin->drawable.bitsPerPixel = pParent->drawable.bitsPerPixel; else { for (format = screenInfo.formats; format->depth != depth; format++); pWin->drawable.bitsPerPixel = format->bitsPerPixel; } if (class == InputOnly) pWin->drawable.type = (short) UNDRAWABLE_WINDOW; pWin->drawable.serialNumber = NEXT_SERIAL_NUMBER; pWin->drawable.id = wid; pWin->drawable.class = class; pWin->parent = pParent; SetWindowToDefaults(pWin); if (visual != ancwopt->visual) { if (!MakeWindowOptional(pWin)) { dixFreeObjectWithPrivates(pWin, PRIVATE_WINDOW); *error = BadAlloc; return NullWindow; } pWin->optional->visual = visual; pWin->optional->colormap = None; } pWin->borderWidth = bw; /* security creation/labeling check */ *error = XaceHook(XACE_RESOURCE_ACCESS, client, wid, RT_WINDOW, pWin, RT_WINDOW, pWin->parent, DixCreateAccess | DixSetAttrAccess); if (*error != Success) { dixFreeObjectWithPrivates(pWin, PRIVATE_WINDOW); return NullWindow; } pWin->backgroundState = XaceBackgroundNoneState(pWin); pWin->background.pixel = pScreen->whitePixel; pWin->borderIsPixel = pParent->borderIsPixel; pWin->border = pParent->border; if (pWin->borderIsPixel == FALSE) pWin->border.pixmap->refcnt++; pWin->origin.x = x + (int) bw; pWin->origin.y = y + (int) bw; pWin->drawable.width = w; pWin->drawable.height = h; pWin->drawable.x = pParent->drawable.x + x + (int) bw; pWin->drawable.y = pParent->drawable.y + y + (int) bw; /* set up clip list correctly for unobscured WindowPtr */ RegionNull(&pWin->clipList); RegionNull(&pWin->borderClip); RegionNull(&pWin->winSize); RegionNull(&pWin->borderSize); pHead = RealChildHead(pParent); if (pHead) { pWin->nextSib = pHead->nextSib; if (pHead->nextSib) pHead->nextSib->prevSib = pWin; else pParent->lastChild = pWin; pHead->nextSib = pWin; pWin->prevSib = pHead; } else { pWin->nextSib = pParent->firstChild; if (pParent->firstChild) pParent->firstChild->prevSib = pWin; else pParent->lastChild = pWin; pParent->firstChild = pWin; } SetWinSize(pWin); SetBorderSize(pWin); /* We SHOULD check for an error value here XXX */ if (!(*pScreen->CreateWindow) (pWin)) { *error = BadAlloc; DeleteWindow(pWin, None); return NullWindow; } /* We SHOULD check for an error value here XXX */ (*pScreen->PositionWindow) (pWin, pWin->drawable.x, pWin->drawable.y); if (!(vmask & CWEventMask)) RecalculateDeliverableEvents(pWin); if (vmask) *error = ChangeWindowAttributes(pWin, vmask, vlist, wClient(pWin)); else *error = Success; if (*error != Success) { DeleteWindow(pWin, None); return NullWindow; } if (SubSend(pParent)) { xEvent event = { .u.createNotify.window = wid, .u.createNotify.parent = pParent->drawable.id, .u.createNotify.x = x, .u.createNotify.y = y, .u.createNotify.width = w, .u.createNotify.height = h, .u.createNotify.borderWidth = bw, .u.createNotify.override = pWin->overrideRedirect }; event.u.u.type = CreateNotify; DeliverEvents(pParent, &event, 1, NullWindow); } return pWin; } static void DisposeWindowOptional(WindowPtr pWin) { if (!pWin->optional) return; /* * everything is peachy. Delete the optional record * and clean up */ if (pWin->optional->cursor) { FreeCursor(pWin->optional->cursor, (Cursor) 0); pWin->cursorIsNone = FALSE; } else pWin->cursorIsNone = TRUE; if (pWin->optional->deviceCursors) { DevCursorList pList; DevCursorList pPrev; pList = pWin->optional->deviceCursors; while (pList) { if (pList->cursor) FreeCursor(pList->cursor, (XID) 0); pPrev = pList; pList = pList->next; free(pPrev); } pWin->optional->deviceCursors = NULL; } free(pWin->optional); pWin->optional = NULL; } static void FreeWindowResources(WindowPtr pWin) { ScreenPtr pScreen = pWin->drawable.pScreen; DeleteWindowFromAnySaveSet(pWin); DeleteWindowFromAnySelections(pWin); DeleteWindowFromAnyEvents(pWin, TRUE); RegionUninit(&pWin->clipList); RegionUninit(&pWin->winSize); RegionUninit(&pWin->borderClip); RegionUninit(&pWin->borderSize); if (wBoundingShape(pWin)) RegionDestroy(wBoundingShape(pWin)); if (wClipShape(pWin)) RegionDestroy(wClipShape(pWin)); if (wInputShape(pWin)) RegionDestroy(wInputShape(pWin)); if (pWin->borderIsPixel == FALSE) (*pScreen->DestroyPixmap) (pWin->border.pixmap); if (pWin->backgroundState == BackgroundPixmap) (*pScreen->DestroyPixmap) (pWin->background.pixmap); DeleteAllWindowProperties(pWin); /* We SHOULD check for an error value here XXX */ (*pScreen->DestroyWindow) (pWin); DisposeWindowOptional(pWin); } static void CrushTree(WindowPtr pWin) { WindowPtr pChild, pSib, pParent; UnrealizeWindowProcPtr UnrealizeWindow; if (!(pChild = pWin->firstChild)) return; UnrealizeWindow = pWin->drawable.pScreen->UnrealizeWindow; while (1) { if (pChild->firstChild) { pChild = pChild->firstChild; continue; } while (1) { pParent = pChild->parent; if (SubStrSend(pChild, pParent)) { xEvent event = { .u.u.type = DestroyNotify }; event.u.destroyNotify.window = pChild->drawable.id; DeliverEvents(pChild, &event, 1, NullWindow); } FreeResource(pChild->drawable.id, RT_WINDOW); pSib = pChild->nextSib; pChild->viewable = FALSE; if (pChild->realized) { pChild->realized = FALSE; (*UnrealizeWindow) (pChild); } FreeWindowResources(pChild); dixFreeObjectWithPrivates(pChild, PRIVATE_WINDOW); if ((pChild = pSib)) break; pChild = pParent; pChild->firstChild = NullWindow; pChild->lastChild = NullWindow; if (pChild == pWin) return; } } } /***** * DeleteWindow * Deletes child of window then window itself * If wid is None, don't send any events *****/ int DeleteWindow(void *value, XID wid) { WindowPtr pParent; WindowPtr pWin = (WindowPtr) value; UnmapWindow(pWin, FALSE); CrushTree(pWin); pParent = pWin->parent; if (wid && pParent && SubStrSend(pWin, pParent)) { xEvent event = { .u.u.type = DestroyNotify }; event.u.destroyNotify.window = pWin->drawable.id; DeliverEvents(pWin, &event, 1, NullWindow); } FreeWindowResources(pWin); if (pParent) { if (pParent->firstChild == pWin) pParent->firstChild = pWin->nextSib; if (pParent->lastChild == pWin) pParent->lastChild = pWin->prevSib; if (pWin->nextSib) pWin->nextSib->prevSib = pWin->prevSib; if (pWin->prevSib) pWin->prevSib->nextSib = pWin->nextSib; } else pWin->drawable.pScreen->root = NULL; dixFreeObjectWithPrivates(pWin, PRIVATE_WINDOW); return Success; } int DestroySubwindows(WindowPtr pWin, ClientPtr client) { /* XXX * The protocol is quite clear that each window should be * destroyed in turn, however, unmapping all of the first * eliminates most of the calls to ValidateTree. So, * this implementation is incorrect in that all of the * UnmapNotifies occur before all of the DestroyNotifies. * If you care, simply delete the call to UnmapSubwindows. */ UnmapSubwindows(pWin); while (pWin->lastChild) { int rc = XaceHook(XACE_RESOURCE_ACCESS, client, pWin->lastChild->drawable.id, RT_WINDOW, pWin->lastChild, RT_NONE, NULL, DixDestroyAccess); if (rc != Success) return rc; FreeResource(pWin->lastChild->drawable.id, RT_NONE); } return Success; } static void SetRootWindowBackground(WindowPtr pWin, ScreenPtr pScreen, Mask *index2) { /* following the protocol: "Changing the background of a root window to * None or ParentRelative restores the default background pixmap" */ if (bgNoneRoot) { pWin->backgroundState = XaceBackgroundNoneState(pWin); pWin->background.pixel = pScreen->whitePixel; } else if (party_like_its_1989) MakeRootTile(pWin); else { pWin->backgroundState = BackgroundPixel; if (whiteRoot) pWin->background.pixel = pScreen->whitePixel; else pWin->background.pixel = pScreen->blackPixel; *index2 = CWBackPixel; } } /***** * ChangeWindowAttributes * * The value-mask specifies which attributes are to be changed; the * value-list contains one value for each one bit in the mask, from least * to most significant bit in the mask. *****/ int ChangeWindowAttributes(WindowPtr pWin, Mask vmask, XID *vlist, ClientPtr client) { XID *pVlist; PixmapPtr pPixmap; Pixmap pixID; CursorPtr pCursor, pOldCursor; Cursor cursorID; WindowPtr pChild; Colormap cmap; ColormapPtr pCmap; xEvent xE; int error, rc; ScreenPtr pScreen; Mask index2, tmask, vmaskCopy = 0; unsigned int val; Bool checkOptional = FALSE, borderRelative = FALSE; if ((pWin->drawable.class == InputOnly) && (vmask & (~INPUTONLY_LEGAL_MASK))) return BadMatch; error = Success; pScreen = pWin->drawable.pScreen; pVlist = vlist; tmask = vmask; while (tmask) { index2 = (Mask) lowbit(tmask); tmask &= ~index2; switch (index2) { case CWBackPixmap: pixID = (Pixmap) * pVlist; pVlist++; if (pWin->backgroundState == ParentRelative) borderRelative = TRUE; if (pixID == None) { if (pWin->backgroundState == BackgroundPixmap) (*pScreen->DestroyPixmap) (pWin->background.pixmap); if (!pWin->parent) SetRootWindowBackground(pWin, pScreen, &index2); else { pWin->backgroundState = XaceBackgroundNoneState(pWin); pWin->background.pixel = pScreen->whitePixel; } } else if (pixID == ParentRelative) { if (pWin->parent && pWin->drawable.depth != pWin->parent->drawable.depth) { error = BadMatch; goto PatchUp; } if (pWin->backgroundState == BackgroundPixmap) (*pScreen->DestroyPixmap) (pWin->background.pixmap); if (!pWin->parent) SetRootWindowBackground(pWin, pScreen, &index2); else pWin->backgroundState = ParentRelative; borderRelative = TRUE; /* Note that the parent's backgroundTile's refcnt is NOT * incremented. */ } else { rc = dixLookupResourceByType((void **) &pPixmap, pixID, RT_PIXMAP, client, DixReadAccess); if (rc == Success) { if ((pPixmap->drawable.depth != pWin->drawable.depth) || (pPixmap->drawable.pScreen != pScreen)) { error = BadMatch; goto PatchUp; } if (pWin->backgroundState == BackgroundPixmap) (*pScreen->DestroyPixmap) (pWin->background.pixmap); pWin->backgroundState = BackgroundPixmap; pWin->background.pixmap = pPixmap; pPixmap->refcnt++; } else { error = rc; client->errorValue = pixID; goto PatchUp; } } break; case CWBackPixel: if (pWin->backgroundState == ParentRelative) borderRelative = TRUE; if (pWin->backgroundState == BackgroundPixmap) (*pScreen->DestroyPixmap) (pWin->background.pixmap); pWin->backgroundState = BackgroundPixel; pWin->background.pixel = (CARD32) *pVlist; /* background pixel overrides background pixmap, so don't let the ddx layer see both bits */ vmaskCopy &= ~CWBackPixmap; pVlist++; break; case CWBorderPixmap: pixID = (Pixmap) * pVlist; pVlist++; if (pixID == CopyFromParent) { if (!pWin->parent || (pWin->drawable.depth != pWin->parent->drawable.depth)) { error = BadMatch; goto PatchUp; } if (pWin->parent->borderIsPixel == TRUE) { if (pWin->borderIsPixel == FALSE) (*pScreen->DestroyPixmap) (pWin->border.pixmap); pWin->border = pWin->parent->border; pWin->borderIsPixel = TRUE; index2 = CWBorderPixel; break; } else { pixID = pWin->parent->border.pixmap->drawable.id; } } rc = dixLookupResourceByType((void **) &pPixmap, pixID, RT_PIXMAP, client, DixReadAccess); if (rc == Success) { if ((pPixmap->drawable.depth != pWin->drawable.depth) || (pPixmap->drawable.pScreen != pScreen)) { error = BadMatch; goto PatchUp; } if (pWin->borderIsPixel == FALSE) (*pScreen->DestroyPixmap) (pWin->border.pixmap); pWin->borderIsPixel = FALSE; pWin->border.pixmap = pPixmap; pPixmap->refcnt++; } else { error = rc; client->errorValue = pixID; goto PatchUp; } break; case CWBorderPixel: if (pWin->borderIsPixel == FALSE) (*pScreen->DestroyPixmap) (pWin->border.pixmap); pWin->borderIsPixel = TRUE; pWin->border.pixel = (CARD32) *pVlist; /* border pixel overrides border pixmap, so don't let the ddx layer see both bits */ vmaskCopy &= ~CWBorderPixmap; pVlist++; break; case CWBitGravity: val = (CARD8) *pVlist; pVlist++; if (val > StaticGravity) { error = BadValue; client->errorValue = val; goto PatchUp; } pWin->bitGravity = val; break; case CWWinGravity: val = (CARD8) *pVlist; pVlist++; if (val > StaticGravity) { error = BadValue; client->errorValue = val; goto PatchUp; } pWin->winGravity = val; break; case CWBackingStore: val = (CARD8) *pVlist; pVlist++; if ((val != NotUseful) && (val != WhenMapped) && (val != Always)) { error = BadValue; client->errorValue = val; goto PatchUp; } /* if we're not actually changing the window's state, hide * CWBackingStore from vmaskCopy so it doesn't get passed to * ->ChangeWindowAttributes below */ if (pWin->backingStore == val) continue; pWin->backingStore = val; break; case CWBackingPlanes: if (pWin->optional || ((CARD32) *pVlist != (CARD32) ~0L)) { if (!pWin->optional && !MakeWindowOptional(pWin)) { error = BadAlloc; goto PatchUp; } pWin->optional->backingBitPlanes = (CARD32) *pVlist; if ((CARD32) *pVlist == (CARD32) ~0L) checkOptional = TRUE; } pVlist++; break; case CWBackingPixel: if (pWin->optional || (CARD32) *pVlist) { if (!pWin->optional && !MakeWindowOptional(pWin)) { error = BadAlloc; goto PatchUp; } pWin->optional->backingPixel = (CARD32) *pVlist; if (!*pVlist) checkOptional = TRUE; } pVlist++; break; case CWSaveUnder: val = (BOOL) * pVlist; pVlist++; if ((val != xTrue) && (val != xFalse)) { error = BadValue; client->errorValue = val; goto PatchUp; } pWin->saveUnder = val; break; case CWEventMask: rc = EventSelectForWindow(pWin, client, (Mask) *pVlist); if (rc) { error = rc; goto PatchUp; } pVlist++; break; case CWDontPropagate: rc = EventSuppressForWindow(pWin, client, (Mask) *pVlist, &checkOptional); if (rc) { error = rc; goto PatchUp; } pVlist++; break; case CWOverrideRedirect: val = (BOOL) * pVlist; pVlist++; if ((val != xTrue) && (val != xFalse)) { error = BadValue; client->errorValue = val; goto PatchUp; } if (val == xTrue) { rc = XaceHook(XACE_RESOURCE_ACCESS, client, pWin->drawable.id, RT_WINDOW, pWin, RT_NONE, NULL, DixGrabAccess); if (rc != Success) { error = rc; client->errorValue = pWin->drawable.id; goto PatchUp; } } pWin->overrideRedirect = val; break; case CWColormap: cmap = (Colormap) * pVlist; pVlist++; if (cmap == CopyFromParent) { if (pWin->parent && (!pWin->optional || pWin->optional->visual == wVisual(pWin->parent))) { cmap = wColormap(pWin->parent); } else cmap = None; } if (cmap == None) { error = BadMatch; goto PatchUp; } rc = dixLookupResourceByType((void **) &pCmap, cmap, RT_COLORMAP, client, DixUseAccess); if (rc != Success) { error = rc; client->errorValue = cmap; goto PatchUp; } if (pCmap->pVisual->vid != wVisual(pWin) || pCmap->pScreen != pScreen) { error = BadMatch; goto PatchUp; } if (cmap != wColormap(pWin)) { if (!pWin->optional) { if (!MakeWindowOptional(pWin)) { error = BadAlloc; goto PatchUp; } } else if (pWin->parent && cmap == wColormap(pWin->parent)) checkOptional = TRUE; /* * propagate the original colormap to any children * inheriting it */ for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) { if (!pChild->optional && !MakeWindowOptional(pChild)) { error = BadAlloc; goto PatchUp; } } pWin->optional->colormap = cmap; /* * check on any children now matching the new colormap */ for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) { if (pChild->optional->colormap == cmap) CheckWindowOptionalNeed(pChild); } xE = (xEvent) { .u.colormap.window = pWin->drawable.id, .u.colormap.colormap = cmap, .u.colormap.new = xTrue, .u.colormap.state = IsMapInstalled(cmap, pWin) }; xE.u.u.type = ColormapNotify; DeliverEvents(pWin, &xE, 1, NullWindow); } break; case CWCursor: cursorID = (Cursor) * pVlist; pVlist++; /* * install the new */ if (cursorID == None) { if (pWin == pWin->drawable.pScreen->root) pCursor = rootCursor; else pCursor = (CursorPtr) None; } else { rc = dixLookupResourceByType((void **) &pCursor, cursorID, RT_CURSOR, client, DixUseAccess); if (rc != Success) { error = rc; client->errorValue = cursorID; goto PatchUp; } } if (pCursor != wCursor(pWin)) { /* * patch up child windows so they don't lose cursors. */ for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) { if (!pChild->optional && !pChild->cursorIsNone && !MakeWindowOptional(pChild)) { error = BadAlloc; goto PatchUp; } } pOldCursor = 0; if (pCursor == (CursorPtr) None) { pWin->cursorIsNone = TRUE; if (pWin->optional) { pOldCursor = pWin->optional->cursor; pWin->optional->cursor = (CursorPtr) None; checkOptional = TRUE; } } else { if (!pWin->optional) { if (!MakeWindowOptional(pWin)) { error = BadAlloc; goto PatchUp; } } else if (pWin->parent && pCursor == wCursor(pWin->parent)) checkOptional = TRUE; pOldCursor = pWin->optional->cursor; pWin->optional->cursor = RefCursor(pCursor); pWin->cursorIsNone = FALSE; /* * check on any children now matching the new cursor */ for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) { if (pChild->optional && (pChild->optional->cursor == pCursor)) CheckWindowOptionalNeed(pChild); } } CursorVisible = TRUE; if (pWin->realized) WindowHasNewCursor(pWin); /* Can't free cursor until here - old cursor * is needed in WindowHasNewCursor */ if (pOldCursor) FreeCursor(pOldCursor, (Cursor) 0); } break; default: error = BadValue; client->errorValue = vmask; goto PatchUp; } vmaskCopy |= index2; } PatchUp: if (checkOptional) CheckWindowOptionalNeed(pWin); /* We SHOULD check for an error value here XXX */ (*pScreen->ChangeWindowAttributes) (pWin, vmaskCopy); /* If the border contents have changed, redraw the border. Note that this has to be done AFTER pScreen->ChangeWindowAttributes for the tile to be rotated, and the correct function selected. */ if (((vmaskCopy & (CWBorderPixel | CWBorderPixmap)) || borderRelative) && pWin->viewable && HasBorder(pWin)) { RegionRec exposed; RegionNull(&exposed); RegionSubtract(&exposed, &pWin->borderClip, &pWin->winSize); pWin->drawable.pScreen->PaintWindow(pWin, &exposed, PW_BORDER); RegionUninit(&exposed); } return error; } /***** * GetWindowAttributes * Notice that this is different than ChangeWindowAttributes *****/ void GetWindowAttributes(WindowPtr pWin, ClientPtr client, xGetWindowAttributesReply * wa) { wa->type = X_Reply; wa->bitGravity = pWin->bitGravity; wa->winGravity = pWin->winGravity; wa->backingStore = pWin->backingStore; wa->length = bytes_to_int32(sizeof(xGetWindowAttributesReply) - sizeof(xGenericReply)); wa->sequenceNumber = client->sequence; wa->backingBitPlanes = wBackingBitPlanes(pWin); wa->backingPixel = wBackingPixel(pWin); wa->saveUnder = (BOOL) pWin->saveUnder; wa->override = pWin->overrideRedirect; if (!pWin->mapped) wa->mapState = IsUnmapped; else if (pWin->realized) wa->mapState = IsViewable; else wa->mapState = IsUnviewable; wa->colormap = wColormap(pWin); wa->mapInstalled = (wa->colormap == None) ? xFalse : IsMapInstalled(wa->colormap, pWin); wa->yourEventMask = EventMaskForClient(pWin, client); wa->allEventMasks = pWin->eventMask | wOtherEventMasks(pWin); wa->doNotPropagateMask = wDontPropagateMask(pWin); wa->class = pWin->drawable.class; wa->visualID = wVisual(pWin); } WindowPtr MoveWindowInStack(WindowPtr pWin, WindowPtr pNextSib) { WindowPtr pParent = pWin->parent; WindowPtr pFirstChange = pWin; /* highest window where list changes */ if (pWin->nextSib != pNextSib) { WindowPtr pOldNextSib = pWin->nextSib; if (!pNextSib) { /* move to bottom */ if (pParent->firstChild == pWin) pParent->firstChild = pWin->nextSib; /* if (pWin->nextSib) *//* is always True: pNextSib == NULL * and pWin->nextSib != pNextSib * therefore pWin->nextSib != NULL */ pFirstChange = pWin->nextSib; pWin->nextSib->prevSib = pWin->prevSib; if (pWin->prevSib) pWin->prevSib->nextSib = pWin->nextSib; pParent->lastChild->nextSib = pWin; pWin->prevSib = pParent->lastChild; pWin->nextSib = NullWindow; pParent->lastChild = pWin; } else if (pParent->firstChild == pNextSib) { /* move to top */ pFirstChange = pWin; if (pParent->lastChild == pWin) pParent->lastChild = pWin->prevSib; if (pWin->nextSib) pWin->nextSib->prevSib = pWin->prevSib; if (pWin->prevSib) pWin->prevSib->nextSib = pWin->nextSib; pWin->nextSib = pParent->firstChild; pWin->prevSib = NULL; pNextSib->prevSib = pWin; pParent->firstChild = pWin; } else { /* move in middle of list */ WindowPtr pOldNext = pWin->nextSib; pFirstChange = NullWindow; if (pParent->firstChild == pWin) pFirstChange = pParent->firstChild = pWin->nextSib; if (pParent->lastChild == pWin) { pFirstChange = pWin; pParent->lastChild = pWin->prevSib; } if (pWin->nextSib) pWin->nextSib->prevSib = pWin->prevSib; if (pWin->prevSib) pWin->prevSib->nextSib = pWin->nextSib; pWin->nextSib = pNextSib; pWin->prevSib = pNextSib->prevSib; if (pNextSib->prevSib) pNextSib->prevSib->nextSib = pWin; pNextSib->prevSib = pWin; if (!pFirstChange) { /* do we know it yet? */ pFirstChange = pParent->firstChild; /* no, search from top */ while ((pFirstChange != pWin) && (pFirstChange != pOldNext)) pFirstChange = pFirstChange->nextSib; } } if (pWin->drawable.pScreen->RestackWindow) (*pWin->drawable.pScreen->RestackWindow) (pWin, pOldNextSib); } #ifdef ROOTLESS /* * In rootless mode we can't optimize away window restacks. * There may be non-X windows around, so even if the window * is in the correct position from X's point of view, * the underlying window system may want to reorder it. */ else if (pWin->drawable.pScreen->RestackWindow) (*pWin->drawable.pScreen->RestackWindow) (pWin, pWin->nextSib); #endif return pFirstChange; } void SetWinSize(WindowPtr pWin) { #ifdef COMPOSITE if (pWin->redirectDraw != RedirectDrawNone) { BoxRec box; /* * Redirected clients get clip list equal to their * own geometry, not clipped to their parent */ box.x1 = pWin->drawable.x; box.y1 = pWin->drawable.y; box.x2 = pWin->drawable.x + pWin->drawable.width; box.y2 = pWin->drawable.y + pWin->drawable.height; RegionReset(&pWin->winSize, &box); } else #endif ClippedRegionFromBox(pWin->parent, &pWin->winSize, pWin->drawable.x, pWin->drawable.y, (int) pWin->drawable.width, (int) pWin->drawable.height); if (wBoundingShape(pWin) || wClipShape(pWin)) { RegionTranslate(&pWin->winSize, -pWin->drawable.x, -pWin->drawable.y); if (wBoundingShape(pWin)) RegionIntersect(&pWin->winSize, &pWin->winSize, wBoundingShape(pWin)); if (wClipShape(pWin)) RegionIntersect(&pWin->winSize, &pWin->winSize, wClipShape(pWin)); RegionTranslate(&pWin->winSize, pWin->drawable.x, pWin->drawable.y); } } void SetBorderSize(WindowPtr pWin) { int bw; if (HasBorder(pWin)) { bw = wBorderWidth(pWin); #ifdef COMPOSITE if (pWin->redirectDraw != RedirectDrawNone) { BoxRec box; /* * Redirected clients get clip list equal to their * own geometry, not clipped to their parent */ box.x1 = pWin->drawable.x - bw; box.y1 = pWin->drawable.y - bw; box.x2 = pWin->drawable.x + pWin->drawable.width + bw; box.y2 = pWin->drawable.y + pWin->drawable.height + bw; RegionReset(&pWin->borderSize, &box); } else #endif ClippedRegionFromBox(pWin->parent, &pWin->borderSize, pWin->drawable.x - bw, pWin->drawable.y - bw, (int) (pWin->drawable.width + (bw << 1)), (int) (pWin->drawable.height + (bw << 1))); if (wBoundingShape(pWin)) { RegionTranslate(&pWin->borderSize, -pWin->drawable.x, -pWin->drawable.y); RegionIntersect(&pWin->borderSize, &pWin->borderSize, wBoundingShape(pWin)); RegionTranslate(&pWin->borderSize, pWin->drawable.x, pWin->drawable.y); RegionUnion(&pWin->borderSize, &pWin->borderSize, &pWin->winSize); } } else { RegionCopy(&pWin->borderSize, &pWin->winSize); } } /** * * \param x,y new window position * \param oldx,oldy old window position * \param destx,desty position relative to gravity */ void GravityTranslate(int x, int y, int oldx, int oldy, int dw, int dh, unsigned gravity, int *destx, int *desty) { switch (gravity) { case NorthGravity: *destx = x + dw / 2; *desty = y; break; case NorthEastGravity: *destx = x + dw; *desty = y; break; case WestGravity: *destx = x; *desty = y + dh / 2; break; case CenterGravity: *destx = x + dw / 2; *desty = y + dh / 2; break; case EastGravity: *destx = x + dw; *desty = y + dh / 2; break; case SouthWestGravity: *destx = x; *desty = y + dh; break; case SouthGravity: *destx = x + dw / 2; *desty = y + dh; break; case SouthEastGravity: *destx = x + dw; *desty = y + dh; break; case StaticGravity: *destx = oldx; *desty = oldy; break; default: *destx = x; *desty = y; break; } } /* XXX need to retile border on each window with ParentRelative origin */ void ResizeChildrenWinSize(WindowPtr pWin, int dx, int dy, int dw, int dh) { ScreenPtr pScreen; WindowPtr pSib, pChild; Bool resized = (dw || dh); pScreen = pWin->drawable.pScreen; for (pSib = pWin->firstChild; pSib; pSib = pSib->nextSib) { if (resized && (pSib->winGravity > NorthWestGravity)) { int cwsx, cwsy; cwsx = pSib->origin.x; cwsy = pSib->origin.y; GravityTranslate(cwsx, cwsy, cwsx - dx, cwsy - dy, dw, dh, pSib->winGravity, &cwsx, &cwsy); if (cwsx != pSib->origin.x || cwsy != pSib->origin.y) { xEvent event = { .u.gravity.window = pSib->drawable.id, .u.gravity.x = cwsx - wBorderWidth(pSib), .u.gravity.y = cwsy - wBorderWidth(pSib) }; event.u.u.type = GravityNotify; DeliverEvents(pSib, &event, 1, NullWindow); pSib->origin.x = cwsx; pSib->origin.y = cwsy; } } pSib->drawable.x = pWin->drawable.x + pSib->origin.x; pSib->drawable.y = pWin->drawable.y + pSib->origin.y; SetWinSize(pSib); SetBorderSize(pSib); (*pScreen->PositionWindow) (pSib, pSib->drawable.x, pSib->drawable.y); if ((pChild = pSib->firstChild)) { while (1) { pChild->drawable.x = pChild->parent->drawable.x + pChild->origin.x; pChild->drawable.y = pChild->parent->drawable.y + pChild->origin.y; SetWinSize(pChild); SetBorderSize(pChild); (*pScreen->PositionWindow) (pChild, pChild->drawable.x, pChild->drawable.y); if (pChild->firstChild) { pChild = pChild->firstChild; continue; } while (!pChild->nextSib && (pChild != pSib)) pChild = pChild->parent; if (pChild == pSib) break; pChild = pChild->nextSib; } } } } #define GET_INT16(m, f) \ if (m & mask) \ { \ f = (INT16) *pVlist;\ pVlist++; \ } #define GET_CARD16(m, f) \ if (m & mask) \ { \ f = (CARD16) *pVlist;\ pVlist++;\ } #define GET_CARD8(m, f) \ if (m & mask) \ { \ f = (CARD8) *pVlist;\ pVlist++;\ } #define ChangeMask ((Mask)(CWX | CWY | CWWidth | CWHeight)) /* * IsSiblingAboveMe * returns Above if pSib above pMe in stack or Below otherwise */ static int IsSiblingAboveMe(WindowPtr pMe, WindowPtr pSib) { WindowPtr pWin; pWin = pMe->parent->firstChild; while (pWin) { if (pWin == pSib) return Above; else if (pWin == pMe) return Below; pWin = pWin->nextSib; } return Below; } static BoxPtr WindowExtents(WindowPtr pWin, BoxPtr pBox) { pBox->x1 = pWin->drawable.x - wBorderWidth(pWin); pBox->y1 = pWin->drawable.y - wBorderWidth(pWin); pBox->x2 = pWin->drawable.x + (int) pWin->drawable.width + wBorderWidth(pWin); pBox->y2 = pWin->drawable.y + (int) pWin->drawable.height + wBorderWidth(pWin); return pBox; } #define IS_SHAPED(pWin) (wBoundingShape (pWin) != NULL) static RegionPtr MakeBoundingRegion(WindowPtr pWin, BoxPtr pBox) { RegionPtr pRgn = RegionCreate(pBox, 1); if (wBoundingShape(pWin)) { RegionTranslate(pRgn, -pWin->origin.x, -pWin->origin.y); RegionIntersect(pRgn, pRgn, wBoundingShape(pWin)); RegionTranslate(pRgn, pWin->origin.x, pWin->origin.y); } return pRgn; } static Bool ShapeOverlap(WindowPtr pWin, BoxPtr pWinBox, WindowPtr pSib, BoxPtr pSibBox) { RegionPtr pWinRgn, pSibRgn; Bool ret; if (!IS_SHAPED(pWin) && !IS_SHAPED(pSib)) return TRUE; pWinRgn = MakeBoundingRegion(pWin, pWinBox); pSibRgn = MakeBoundingRegion(pSib, pSibBox); RegionIntersect(pWinRgn, pWinRgn, pSibRgn); ret = RegionNotEmpty(pWinRgn); RegionDestroy(pWinRgn); RegionDestroy(pSibRgn); return ret; } static Bool AnyWindowOverlapsMe(WindowPtr pWin, WindowPtr pHead, BoxPtr box) { WindowPtr pSib; BoxRec sboxrec; BoxPtr sbox; for (pSib = pWin->prevSib; pSib != pHead; pSib = pSib->prevSib) { if (pSib->mapped) { sbox = WindowExtents(pSib, &sboxrec); if (BOXES_OVERLAP(sbox, box) && ShapeOverlap(pWin, box, pSib, sbox)) return TRUE; } } return FALSE; } static Bool IOverlapAnyWindow(WindowPtr pWin, BoxPtr box) { WindowPtr pSib; BoxRec sboxrec; BoxPtr sbox; for (pSib = pWin->nextSib; pSib; pSib = pSib->nextSib) { if (pSib->mapped) { sbox = WindowExtents(pSib, &sboxrec); if (BOXES_OVERLAP(sbox, box) && ShapeOverlap(pWin, box, pSib, sbox)) return TRUE; } } return FALSE; } /* * WhereDoIGoInTheStack() * Given pWin and pSib and the relationshipe smode, return * the window that pWin should go ABOVE. * If a pSib is specified: * Above: pWin is placed just above pSib * Below: pWin is placed just below pSib * TopIf: if pSib occludes pWin, then pWin is placed * at the top of the stack * BottomIf: if pWin occludes pSib, then pWin is * placed at the bottom of the stack * Opposite: if pSib occludes pWin, then pWin is placed at the * top of the stack, else if pWin occludes pSib, then * pWin is placed at the bottom of the stack * * If pSib is NULL: * Above: pWin is placed at the top of the stack * Below: pWin is placed at the bottom of the stack * TopIf: if any sibling occludes pWin, then pWin is placed at * the top of the stack * BottomIf: if pWin occludes any sibline, then pWin is placed at * the bottom of the stack * Opposite: if any sibling occludes pWin, then pWin is placed at * the top of the stack, else if pWin occludes any * sibling, then pWin is placed at the bottom of the stack * */ static WindowPtr WhereDoIGoInTheStack(WindowPtr pWin, WindowPtr pSib, short x, short y, unsigned short w, unsigned short h, int smode) { BoxRec box; WindowPtr pHead, pFirst; if ((pWin == pWin->parent->firstChild) && (pWin == pWin->parent->lastChild)) return NULL; pHead = RealChildHead(pWin->parent); pFirst = pHead ? pHead->nextSib : pWin->parent->firstChild; box.x1 = x; box.y1 = y; box.x2 = x + (int) w; box.y2 = y + (int) h; switch (smode) { case Above: if (pSib) return pSib; else if (pWin == pFirst) return pWin->nextSib; else return pFirst; case Below: if (pSib) if (pSib->nextSib != pWin) return pSib->nextSib; else return pWin->nextSib; else return NullWindow; case TopIf: if ((!pWin->mapped || (pSib && !pSib->mapped))) return pWin->nextSib; else if (pSib) { if ((IsSiblingAboveMe(pWin, pSib) == Above) && (RegionContainsRect(&pSib->borderSize, &box) != rgnOUT)) return pFirst; else return pWin->nextSib; } else if (AnyWindowOverlapsMe(pWin, pHead, &box)) return pFirst; else return pWin->nextSib; case BottomIf: if ((!pWin->mapped || (pSib && !pSib->mapped))) return pWin->nextSib; else if (pSib) { if ((IsSiblingAboveMe(pWin, pSib) == Below) && (RegionContainsRect(&pSib->borderSize, &box) != rgnOUT)) return NullWindow; else return pWin->nextSib; } else if (IOverlapAnyWindow(pWin, &box)) return NullWindow; else return pWin->nextSib; case Opposite: if ((!pWin->mapped || (pSib && !pSib->mapped))) return pWin->nextSib; else if (pSib) { if (RegionContainsRect(&pSib->borderSize, &box) != rgnOUT) { if (IsSiblingAboveMe(pWin, pSib) == Above) return pFirst; else return NullWindow; } else return pWin->nextSib; } else if (AnyWindowOverlapsMe(pWin, pHead, &box)) { /* If I'm occluded, I can't possibly be the first child * if (pWin == pWin->parent->firstChild) * return pWin->nextSib; */ return pFirst; } else if (IOverlapAnyWindow(pWin, &box)) return NullWindow; else return pWin->nextSib; default: { /* should never happen; make something up. */ return pWin->nextSib; } } } static void ReflectStackChange(WindowPtr pWin, WindowPtr pSib, VTKind kind) { /* Note that pSib might be NULL */ Bool WasViewable = (Bool) pWin->viewable; Bool anyMarked; WindowPtr pFirstChange; WindowPtr pLayerWin; ScreenPtr pScreen = pWin->drawable.pScreen; /* if this is a root window, can't be restacked */ if (!pWin->parent) return; pFirstChange = MoveWindowInStack(pWin, pSib); if (WasViewable) { anyMarked = (*pScreen->MarkOverlappedWindows) (pWin, pFirstChange, &pLayerWin); if (pLayerWin != pWin) pFirstChange = pLayerWin; if (anyMarked) { (*pScreen->ValidateTree) (pLayerWin->parent, pFirstChange, kind); (*pScreen->HandleExposures) (pLayerWin->parent); if (pWin->drawable.pScreen->PostValidateTree) (*pScreen->PostValidateTree) (pLayerWin->parent, pFirstChange, kind); } } if (pWin->realized) WindowsRestructured(); } /***** * ConfigureWindow *****/ int ConfigureWindow(WindowPtr pWin, Mask mask, XID *vlist, ClientPtr client) { #define RESTACK_WIN 0 #define MOVE_WIN 1 #define RESIZE_WIN 2 #define REBORDER_WIN 3 WindowPtr pSib = NullWindow; WindowPtr pParent = pWin->parent; Window sibwid = 0; Mask index2, tmask; XID *pVlist; short x, y, beforeX, beforeY; unsigned short w = pWin->drawable.width, h = pWin->drawable.height, bw = pWin->borderWidth; int rc, action, smode = Above; if ((pWin->drawable.class == InputOnly) && (mask & CWBorderWidth)) return BadMatch; if ((mask & CWSibling) && !(mask & CWStackMode)) return BadMatch; pVlist = vlist; if (pParent) { x = pWin->drawable.x - pParent->drawable.x - (int) bw; y = pWin->drawable.y - pParent->drawable.y - (int) bw; } else { x = pWin->drawable.x; y = pWin->drawable.y; } beforeX = x; beforeY = y; action = RESTACK_WIN; if ((mask & (CWX | CWY)) && (!(mask & (CWHeight | CWWidth)))) { GET_INT16(CWX, x); GET_INT16(CWY, y); action = MOVE_WIN; } /* or should be resized */ else if (mask & (CWX | CWY | CWWidth | CWHeight)) { GET_INT16(CWX, x); GET_INT16(CWY, y); GET_CARD16(CWWidth, w); GET_CARD16(CWHeight, h); if (!w || !h) { client->errorValue = 0; return BadValue; } action = RESIZE_WIN; } tmask = mask & ~ChangeMask; while (tmask) { index2 = (Mask) lowbit(tmask); tmask &= ~index2; switch (index2) { case CWBorderWidth: GET_CARD16(CWBorderWidth, bw); break; case CWSibling: sibwid = (Window) *pVlist; pVlist++; rc = dixLookupWindow(&pSib, sibwid, client, DixGetAttrAccess); if (rc != Success) { client->errorValue = sibwid; return rc; } if (pSib->parent != pParent) return BadMatch; if (pSib == pWin) return BadMatch; break; case CWStackMode: GET_CARD8(CWStackMode, smode); if ((smode != TopIf) && (smode != BottomIf) && (smode != Opposite) && (smode != Above) && (smode != Below)) { client->errorValue = smode; return BadValue; } break; default: client->errorValue = mask; return BadValue; } } /* root really can't be reconfigured, so just return */ if (!pParent) return Success; /* Figure out if the window should be moved. Doesn't make the changes to the window if event sent. */ if (mask & CWStackMode) pSib = WhereDoIGoInTheStack(pWin, pSib, pParent->drawable.x + x, pParent->drawable.y + y, w + (bw << 1), h + (bw << 1), smode); else pSib = pWin->nextSib; if ((!pWin->overrideRedirect) && (RedirectSend(pParent))) { xEvent event = { .u.configureRequest.window = pWin->drawable.id, .u.configureRequest.sibling = (mask & CWSibling) ? sibwid : None, .u.configureRequest.x = x, .u.configureRequest.y = y, .u.configureRequest.width = w, .u.configureRequest.height = h, .u.configureRequest.borderWidth = bw, .u.configureRequest.valueMask = mask, .u.configureRequest.parent = pParent->drawable.id }; event.u.u.type = ConfigureRequest; event.u.u.detail = (mask & CWStackMode) ? smode : Above; #ifdef PANORAMIX if (!noPanoramiXExtension && (!pParent || !pParent->parent)) { event.u.configureRequest.x += screenInfo.screens[0]->x; event.u.configureRequest.y += screenInfo.screens[0]->y; } #endif if (MaybeDeliverEventsToClient(pParent, &event, 1, SubstructureRedirectMask, client) == 1) return Success; } if (action == RESIZE_WIN) { Bool size_change = (w != pWin->drawable.width) || (h != pWin->drawable.height); if (size_change && ((pWin->eventMask | wOtherEventMasks(pWin)) & ResizeRedirectMask)) { xEvent eventT = { .u.resizeRequest.window = pWin->drawable.id, .u.resizeRequest.width = w, .u.resizeRequest.height = h }; eventT.u.u.type = ResizeRequest; if (MaybeDeliverEventsToClient(pWin, &eventT, 1, ResizeRedirectMask, client) == 1) { /* if event is delivered, leave the actual size alone. */ w = pWin->drawable.width; h = pWin->drawable.height; size_change = FALSE; } } if (!size_change) { if (mask & (CWX | CWY)) action = MOVE_WIN; else if (mask & (CWStackMode | CWBorderWidth)) action = RESTACK_WIN; else /* really nothing to do */ return (Success); } } if (action == RESIZE_WIN) /* we've already checked whether there's really a size change */ goto ActuallyDoSomething; if ((mask & CWX) && (x != beforeX)) goto ActuallyDoSomething; if ((mask & CWY) && (y != beforeY)) goto ActuallyDoSomething; if ((mask & CWBorderWidth) && (bw != wBorderWidth(pWin))) goto ActuallyDoSomething; if (mask & CWStackMode) { #ifndef ROOTLESS /* See above for why we always reorder in rootless mode. */ if (pWin->nextSib != pSib) #endif goto ActuallyDoSomething; } return Success; ActuallyDoSomething: if (pWin->drawable.pScreen->ConfigNotify) { int ret; ret = (*pWin->drawable.pScreen->ConfigNotify) (pWin, x, y, w, h, bw, pSib); if (ret) { client->errorValue = 0; return ret; } } if (SubStrSend(pWin, pParent)) { xEvent event = { .u.configureNotify.window = pWin->drawable.id, .u.configureNotify.aboveSibling = pSib ? pSib->drawable.id : None, .u.configureNotify.x = x, .u.configureNotify.y = y, .u.configureNotify.width = w, .u.configureNotify.height = h, .u.configureNotify.borderWidth = bw, .u.configureNotify.override = pWin->overrideRedirect }; event.u.u.type = ConfigureNotify; #ifdef PANORAMIX if (!noPanoramiXExtension && (!pParent || !pParent->parent)) { event.u.configureNotify.x += screenInfo.screens[0]->x; event.u.configureNotify.y += screenInfo.screens[0]->y; } #endif DeliverEvents(pWin, &event, 1, NullWindow); } if (mask & CWBorderWidth) { if (action == RESTACK_WIN) { action = MOVE_WIN; pWin->borderWidth = bw; } else if ((action == MOVE_WIN) && (beforeX + wBorderWidth(pWin) == x + (int) bw) && (beforeY + wBorderWidth(pWin) == y + (int) bw)) { action = REBORDER_WIN; (*pWin->drawable.pScreen->ChangeBorderWidth) (pWin, bw); } else pWin->borderWidth = bw; } if (action == MOVE_WIN) (*pWin->drawable.pScreen->MoveWindow) (pWin, x, y, pSib, (mask & CWBorderWidth) ? VTOther : VTMove); else if (action == RESIZE_WIN) (*pWin->drawable.pScreen->ResizeWindow) (pWin, x, y, w, h, pSib); else if (mask & CWStackMode) ReflectStackChange(pWin, pSib, VTOther); if (action != RESTACK_WIN) CheckCursorConfinement(pWin); return Success; #undef RESTACK_WIN #undef MOVE_WIN #undef RESIZE_WIN #undef REBORDER_WIN } /****** * * CirculateWindow * For RaiseLowest, raises the lowest mapped child (if any) that is * obscured by another child to the top of the stack. For LowerHighest, * lowers the highest mapped child (if any) that is obscuring another * child to the bottom of the stack. Exposure processing is performed * ******/ int CirculateWindow(WindowPtr pParent, int direction, ClientPtr client) { WindowPtr pWin, pHead, pFirst; xEvent event; BoxRec box; pHead = RealChildHead(pParent); pFirst = pHead ? pHead->nextSib : pParent->firstChild; if (direction == RaiseLowest) { for (pWin = pParent->lastChild; (pWin != pHead) && !(pWin->mapped && AnyWindowOverlapsMe(pWin, pHead, WindowExtents(pWin, &box))); pWin = pWin->prevSib); if (pWin == pHead) return Success; } else { for (pWin = pFirst; pWin && !(pWin->mapped && IOverlapAnyWindow(pWin, WindowExtents(pWin, &box))); pWin = pWin->nextSib); if (!pWin) return Success; } event = (xEvent) { .u.circulate.window = pWin->drawable.id, .u.circulate.parent = pParent->drawable.id, .u.circulate.event = pParent->drawable.id, .u.circulate.place = (direction == RaiseLowest) ? PlaceOnTop : PlaceOnBottom, }; if (RedirectSend(pParent)) { event.u.u.type = CirculateRequest; if (MaybeDeliverEventsToClient(pParent, &event, 1, SubstructureRedirectMask, client) == 1) return Success; } event.u.u.type = CirculateNotify; DeliverEvents(pWin, &event, 1, NullWindow); ReflectStackChange(pWin, (direction == RaiseLowest) ? pFirst : NullWindow, VTStack); return Success; } static int CompareWIDs(WindowPtr pWin, void *value) { /* must conform to VisitWindowProcPtr */ Window *wid = (Window *) value; if (pWin->drawable.id == *wid) return WT_STOPWALKING; else return WT_WALKCHILDREN; } /***** * ReparentWindow *****/ int ReparentWindow(WindowPtr pWin, WindowPtr pParent, int x, int y, ClientPtr client) { WindowPtr pPrev, pPriorParent; Bool WasMapped = (Bool) (pWin->mapped); xEvent event; int bw = wBorderWidth(pWin); ScreenPtr pScreen; pScreen = pWin->drawable.pScreen; if (TraverseTree(pWin, CompareWIDs, (void *) &pParent->drawable.id) == WT_STOPWALKING) return BadMatch; if (!MakeWindowOptional(pWin)) return BadAlloc; if (WasMapped) UnmapWindow(pWin, FALSE); event = (xEvent) { .u.reparent.window = pWin->drawable.id, .u.reparent.parent = pParent->drawable.id, .u.reparent.x = x, .u.reparent.y = y, .u.reparent.override = pWin->overrideRedirect }; event.u.u.type = ReparentNotify; #ifdef PANORAMIX if (!noPanoramiXExtension && !pParent->parent) { event.u.reparent.x += screenInfo.screens[0]->x; event.u.reparent.y += screenInfo.screens[0]->y; } #endif DeliverEvents(pWin, &event, 1, pParent); /* take out of sibling chain */ pPriorParent = pPrev = pWin->parent; if (pPrev->firstChild == pWin) pPrev->firstChild = pWin->nextSib; if (pPrev->lastChild == pWin) pPrev->lastChild = pWin->prevSib; if (pWin->nextSib) pWin->nextSib->prevSib = pWin->prevSib; if (pWin->prevSib) pWin->prevSib->nextSib = pWin->nextSib; /* insert at beginning of pParent */ pWin->parent = pParent; pPrev = RealChildHead(pParent); if (pPrev) { pWin->nextSib = pPrev->nextSib; if (pPrev->nextSib) pPrev->nextSib->prevSib = pWin; else pParent->lastChild = pWin; pPrev->nextSib = pWin; pWin->prevSib = pPrev; } else { pWin->nextSib = pParent->firstChild; pWin->prevSib = NullWindow; if (pParent->firstChild) pParent->firstChild->prevSib = pWin; else pParent->lastChild = pWin; pParent->firstChild = pWin; } pWin->origin.x = x + bw; pWin->origin.y = y + bw; pWin->drawable.x = x + bw + pParent->drawable.x; pWin->drawable.y = y + bw + pParent->drawable.y; /* clip to parent */ SetWinSize(pWin); SetBorderSize(pWin); if (pScreen->ReparentWindow) (*pScreen->ReparentWindow) (pWin, pPriorParent); (*pScreen->PositionWindow) (pWin, pWin->drawable.x, pWin->drawable.y); ResizeChildrenWinSize(pWin, 0, 0, 0, 0); CheckWindowOptionalNeed(pWin); if (WasMapped) MapWindow(pWin, client); RecalculateDeliverableEvents(pWin); return Success; } static void RealizeTree(WindowPtr pWin) { WindowPtr pChild; RealizeWindowProcPtr Realize; Realize = pWin->drawable.pScreen->RealizeWindow; pChild = pWin; while (1) { if (pChild->mapped) { pChild->realized = TRUE; pChild->viewable = (pChild->drawable.class == InputOutput); (*Realize) (pChild); if (pChild->firstChild) { pChild = pChild->firstChild; continue; } } while (!pChild->nextSib && (pChild != pWin)) pChild = pChild->parent; if (pChild == pWin) return; pChild = pChild->nextSib; } } static Bool MaybeDeliverMapRequest(WindowPtr pWin, WindowPtr pParent, ClientPtr client) { xEvent event = { .u.mapRequest.window = pWin->drawable.id, .u.mapRequest.parent = pParent->drawable.id }; event.u.u.type = MapRequest; return MaybeDeliverEventsToClient(pParent, &event, 1, SubstructureRedirectMask, client) == 1; } static void DeliverMapNotify(WindowPtr pWin) { xEvent event = { .u.mapNotify.window = pWin->drawable.id, .u.mapNotify.override = pWin->overrideRedirect, }; event.u.u.type = MapNotify; DeliverEvents(pWin, &event, 1, NullWindow); } /***** * MapWindow * If some other client has selected SubStructureReDirect on the parent * and override-redirect is xFalse, then a MapRequest event is generated, * but the window remains unmapped. Otherwise, the window is mapped and a * MapNotify event is generated. *****/ int MapWindow(WindowPtr pWin, ClientPtr client) { ScreenPtr pScreen; WindowPtr pParent; WindowPtr pLayerWin; if (pWin->mapped) return Success; /* general check for permission to map window */ if (XaceHook(XACE_RESOURCE_ACCESS, client, pWin->drawable.id, RT_WINDOW, pWin, RT_NONE, NULL, DixShowAccess) != Success) return Success; pScreen = pWin->drawable.pScreen; if ((pParent = pWin->parent)) { Bool anyMarked; if ((!pWin->overrideRedirect) && (RedirectSend(pParent))) if (MaybeDeliverMapRequest(pWin, pParent, client)) return Success; pWin->mapped = TRUE; if (SubStrSend(pWin, pParent)) DeliverMapNotify(pWin); if (!pParent->realized) return Success; RealizeTree(pWin); if (pWin->viewable) { anyMarked = (*pScreen->MarkOverlappedWindows) (pWin, pWin, &pLayerWin); if (anyMarked) { (*pScreen->ValidateTree) (pLayerWin->parent, pLayerWin, VTMap); (*pScreen->HandleExposures) (pLayerWin->parent); if (pScreen->PostValidateTree) (*pScreen->PostValidateTree) (pLayerWin->parent, pLayerWin, VTMap); } } WindowsRestructured(); } else { RegionRec temp; pWin->mapped = TRUE; pWin->realized = TRUE; /* for roots */ pWin->viewable = pWin->drawable.class == InputOutput; /* We SHOULD check for an error value here XXX */ (*pScreen->RealizeWindow) (pWin); if (pScreen->ClipNotify) (*pScreen->ClipNotify) (pWin, 0, 0); if (pScreen->PostValidateTree) (*pScreen->PostValidateTree) (NullWindow, pWin, VTMap); RegionNull(&temp); RegionCopy(&temp, &pWin->clipList); (*pScreen->WindowExposures) (pWin, &temp); RegionUninit(&temp); } return Success; } /***** * MapSubwindows * Performs a MapWindow all unmapped children of the window, in top * to bottom stacking order. *****/ void MapSubwindows(WindowPtr pParent, ClientPtr client) { WindowPtr pWin; WindowPtr pFirstMapped = NullWindow; ScreenPtr pScreen; Mask parentRedirect; Mask parentNotify; Bool anyMarked; WindowPtr pLayerWin; pScreen = pParent->drawable.pScreen; parentRedirect = RedirectSend(pParent); parentNotify = SubSend(pParent); anyMarked = FALSE; for (pWin = pParent->firstChild; pWin; pWin = pWin->nextSib) { if (!pWin->mapped) { if (parentRedirect && !pWin->overrideRedirect) if (MaybeDeliverMapRequest(pWin, pParent, client)) continue; pWin->mapped = TRUE; if (parentNotify || StrSend(pWin)) DeliverMapNotify(pWin); if (!pFirstMapped) pFirstMapped = pWin; if (pParent->realized) { RealizeTree(pWin); if (pWin->viewable) { anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin, pWin, NULL); } } } } if (pFirstMapped) { pLayerWin = (*pScreen->GetLayerWindow) (pParent); if (pLayerWin->parent != pParent) { anyMarked |= (*pScreen->MarkOverlappedWindows) (pLayerWin, pLayerWin, NULL); pFirstMapped = pLayerWin; } if (anyMarked) { (*pScreen->ValidateTree) (pLayerWin->parent, pFirstMapped, VTMap); (*pScreen->HandleExposures) (pLayerWin->parent); if (pScreen->PostValidateTree) (*pScreen->PostValidateTree) (pLayerWin->parent, pFirstMapped, VTMap); } WindowsRestructured(); } } static void UnrealizeTree(WindowPtr pWin, Bool fromConfigure) { WindowPtr pChild; UnrealizeWindowProcPtr Unrealize; MarkUnrealizedWindowProcPtr MarkUnrealizedWindow; Unrealize = pWin->drawable.pScreen->UnrealizeWindow; MarkUnrealizedWindow = pWin->drawable.pScreen->MarkUnrealizedWindow; pChild = pWin; while (1) { if (pChild->realized) { pChild->realized = FALSE; pChild->visibility = VisibilityNotViewable; #ifdef PANORAMIX if (!noPanoramiXExtension && !pChild->drawable.pScreen->myNum) { PanoramiXRes *win; int rc = dixLookupResourceByType((void **) &win, pChild->drawable.id, XRT_WINDOW, serverClient, DixWriteAccess); if (rc == Success) win->u.win.visibility = VisibilityNotViewable; } #endif (*Unrealize) (pChild); DeleteWindowFromAnyEvents(pChild, FALSE); if (pChild->viewable) { pChild->viewable = FALSE; (*MarkUnrealizedWindow) (pChild, pWin, fromConfigure); pChild->drawable.serialNumber = NEXT_SERIAL_NUMBER; } if (pChild->firstChild) { pChild = pChild->firstChild; continue; } } while (!pChild->nextSib && (pChild != pWin)) pChild = pChild->parent; if (pChild == pWin) return; pChild = pChild->nextSib; } } static void DeliverUnmapNotify(WindowPtr pWin, Bool fromConfigure) { xEvent event = { .u.unmapNotify.window = pWin->drawable.id, .u.unmapNotify.fromConfigure = fromConfigure }; event.u.u.type = UnmapNotify; DeliverEvents(pWin, &event, 1, NullWindow); } /***** * UnmapWindow * If the window is already unmapped, this request has no effect. * Otherwise, the window is unmapped and an UnMapNotify event is * generated. Cannot unmap a root window. *****/ int UnmapWindow(WindowPtr pWin, Bool fromConfigure) { WindowPtr pParent; Bool wasRealized = (Bool) pWin->realized; Bool wasViewable = (Bool) pWin->viewable; ScreenPtr pScreen = pWin->drawable.pScreen; WindowPtr pLayerWin = pWin; if ((!pWin->mapped) || (!(pParent = pWin->parent))) return Success; if (SubStrSend(pWin, pParent)) DeliverUnmapNotify(pWin, fromConfigure); if (wasViewable && !fromConfigure) { pWin->valdata = UnmapValData; (*pScreen->MarkOverlappedWindows) (pWin, pWin->nextSib, &pLayerWin); (*pScreen->MarkWindow) (pLayerWin->parent); } pWin->mapped = FALSE; if (wasRealized) UnrealizeTree(pWin, fromConfigure); if (wasViewable && !fromConfigure) { (*pScreen->ValidateTree) (pLayerWin->parent, pWin, VTUnmap); (*pScreen->HandleExposures) (pLayerWin->parent); if (pScreen->PostValidateTree) (*pScreen->PostValidateTree) (pLayerWin->parent, pWin, VTUnmap); } if (wasRealized && !fromConfigure) { WindowsRestructured(); WindowGone(pWin); } return Success; } /***** * UnmapSubwindows * Performs an UnmapWindow request with the specified mode on all mapped * children of the window, in bottom to top stacking order. *****/ void UnmapSubwindows(WindowPtr pWin) { WindowPtr pChild, pHead; Bool wasRealized = (Bool) pWin->realized; Bool wasViewable = (Bool) pWin->viewable; Bool anyMarked = FALSE; Mask parentNotify; WindowPtr pLayerWin = NULL; ScreenPtr pScreen = pWin->drawable.pScreen; if (!pWin->firstChild) return; parentNotify = SubSend(pWin); pHead = RealChildHead(pWin); if (wasViewable) pLayerWin = (*pScreen->GetLayerWindow) (pWin); for (pChild = pWin->lastChild; pChild != pHead; pChild = pChild->prevSib) { if (pChild->mapped) { if (parentNotify || StrSend(pChild)) DeliverUnmapNotify(pChild, xFalse); if (pChild->viewable) { pChild->valdata = UnmapValData; anyMarked = TRUE; } pChild->mapped = FALSE; if (pChild->realized) UnrealizeTree(pChild, FALSE); } } if (wasViewable && anyMarked) { if (pLayerWin->parent == pWin) (*pScreen->MarkWindow) (pWin); else { WindowPtr ptmp; (*pScreen->MarkOverlappedWindows) (pWin, pLayerWin, NULL); (*pScreen->MarkWindow) (pLayerWin->parent); /* Windows between pWin and pLayerWin may not have been marked */ ptmp = pWin; while (ptmp != pLayerWin->parent) { (*pScreen->MarkWindow) (ptmp); ptmp = ptmp->parent; } pHead = pWin->firstChild; } (*pScreen->ValidateTree) (pLayerWin->parent, pHead, VTUnmap); (*pScreen->HandleExposures) (pLayerWin->parent); if (pScreen->PostValidateTree) (*pScreen->PostValidateTree) (pLayerWin->parent, pHead, VTUnmap); } if (wasRealized) { WindowsRestructured(); WindowGone(pWin); } } void HandleSaveSet(ClientPtr client) { WindowPtr pParent, pWin; int j; for (j = 0; j < client->numSaved; j++) { pWin = SaveSetWindow(client->saveSet[j]); if (SaveSetToRoot(client->saveSet[j])) pParent = pWin->drawable.pScreen->root; else { pParent = pWin->parent; while (pParent && (wClient(pParent) == client)) pParent = pParent->parent; } if (pParent) { if (pParent != pWin->parent) { /* unmap first so that ReparentWindow doesn't remap */ if (!SaveSetShouldMap(client->saveSet[j])) UnmapWindow(pWin, FALSE); ReparentWindow(pWin, pParent, pWin->drawable.x - wBorderWidth(pWin) - pParent->drawable.x, pWin->drawable.y - wBorderWidth(pWin) - pParent->drawable.y, client); if (!pWin->realized && pWin->mapped) pWin->mapped = FALSE; } if (SaveSetShouldMap(client->saveSet[j])) MapWindow(pWin, client); } } free(client->saveSet); client->numSaved = 0; client->saveSet = NULL; } /** * * \param x,y in root */ Bool PointInWindowIsVisible(WindowPtr pWin, int x, int y) { BoxRec box; if (!pWin->realized) return FALSE; if (RegionContainsPoint(&pWin->borderClip, x, y, &box) && (!wInputShape(pWin) || RegionContainsPoint(wInputShape(pWin), x - pWin->drawable.x, y - pWin->drawable.y, &box))) return TRUE; return FALSE; } RegionPtr NotClippedByChildren(WindowPtr pWin) { RegionPtr pReg = RegionCreate(NullBox, 1); if (pWin->parent || screenIsSaved != SCREEN_SAVER_ON || !HasSaverWindow(pWin->drawable.pScreen)) { RegionIntersect(pReg, &pWin->borderClip, &pWin->winSize); } return pReg; } void SendVisibilityNotify(WindowPtr pWin) { xEvent event; unsigned int visibility = pWin->visibility; #ifdef PANORAMIX /* This is not quite correct yet, but it's close */ if (!noPanoramiXExtension) { PanoramiXRes *win; WindowPtr pWin2; int rc, i, Scrnum; Scrnum = pWin->drawable.pScreen->myNum; win = PanoramiXFindIDByScrnum(XRT_WINDOW, pWin->drawable.id, Scrnum); if (!win || (win->u.win.visibility == visibility)) return; switch (visibility) { case VisibilityUnobscured: FOR_NSCREENS(i) { if (i == Scrnum) continue; rc = dixLookupWindow(&pWin2, win->info[i].id, serverClient, DixWriteAccess); if (rc == Success) { if (pWin2->visibility == VisibilityPartiallyObscured) return; if (!i) pWin = pWin2; } } break; case VisibilityPartiallyObscured: if (Scrnum) { rc = dixLookupWindow(&pWin2, win->info[0].id, serverClient, DixWriteAccess); if (rc == Success) pWin = pWin2; } break; case VisibilityFullyObscured: FOR_NSCREENS(i) { if (i == Scrnum) continue; rc = dixLookupWindow(&pWin2, win->info[i].id, serverClient, DixWriteAccess); if (rc == Success) { if (pWin2->visibility != VisibilityFullyObscured) return; if (!i) pWin = pWin2; } } break; } win->u.win.visibility = visibility; } #endif event = (xEvent) { .u.visibility.window = pWin->drawable.id, .u.visibility.state = visibility }; event.u.u.type = VisibilityNotify; DeliverEvents(pWin, &event, 1, NullWindow); } #define RANDOM_WIDTH 32 int dixSaveScreens(ClientPtr client, int on, int mode) { int rc, i, what, type; XID vlist[2]; if (on == SCREEN_SAVER_FORCER) { if (mode == ScreenSaverReset) what = SCREEN_SAVER_OFF; else what = SCREEN_SAVER_ON; type = what; } else { what = on; type = what; if (what == screenIsSaved) type = SCREEN_SAVER_CYCLE; } for (i = 0; i < screenInfo.numScreens; i++) { rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i], DixShowAccess | DixHideAccess); if (rc != Success) return rc; } for (i = 0; i < screenInfo.numScreens; i++) { ScreenPtr pScreen = screenInfo.screens[i]; if (on == SCREEN_SAVER_FORCER) (*pScreen->SaveScreen) (pScreen, on); if (pScreen->screensaver.ExternalScreenSaver) { if ((*pScreen->screensaver.ExternalScreenSaver) (pScreen, type, on == SCREEN_SAVER_FORCER)) continue; } if (type == screenIsSaved) continue; switch (type) { case SCREEN_SAVER_OFF: if (pScreen->screensaver.blanked == SCREEN_IS_BLANKED) { (*pScreen->SaveScreen) (pScreen, what); } else if (HasSaverWindow(pScreen)) { pScreen->screensaver.pWindow = NullWindow; FreeResource(pScreen->screensaver.wid, RT_NONE); } break; case SCREEN_SAVER_CYCLE: if (pScreen->screensaver.blanked == SCREEN_IS_TILED) { WindowPtr pWin = pScreen->screensaver.pWindow; /* make it look like screen saver is off, so that * NotClippedByChildren will compute a clip list * for the root window, so PaintWindow works */ screenIsSaved = SCREEN_SAVER_OFF; vlist[0] = -(rand() % RANDOM_WIDTH); vlist[1] = -(rand() % RANDOM_WIDTH); ConfigureWindow(pWin, CWX | CWY, vlist, client); screenIsSaved = SCREEN_SAVER_ON; } /* * Call the DDX saver in case it wants to do something * at cycle time */ else if (pScreen->screensaver.blanked == SCREEN_IS_BLANKED) { (*pScreen->SaveScreen) (pScreen, type); } break; case SCREEN_SAVER_ON: if (ScreenSaverBlanking != DontPreferBlanking) { if ((*pScreen->SaveScreen) (pScreen, what)) { pScreen->screensaver.blanked = SCREEN_IS_BLANKED; continue; } if ((ScreenSaverAllowExposures != DontAllowExposures) && TileScreenSaver(pScreen, SCREEN_IS_BLACK)) { pScreen->screensaver.blanked = SCREEN_IS_BLACK; continue; } } if ((ScreenSaverAllowExposures != DontAllowExposures) && TileScreenSaver(pScreen, SCREEN_IS_TILED)) { pScreen->screensaver.blanked = SCREEN_IS_TILED; } else pScreen->screensaver.blanked = SCREEN_ISNT_SAVED; break; } } screenIsSaved = what; if (mode == ScreenSaverReset) { if (on == SCREEN_SAVER_FORCER) { DeviceIntPtr dev; UpdateCurrentTimeIf(); nt_list_for_each_entry(dev, inputInfo.devices, next) NoticeTime(dev, currentTime); } SetScreenSaverTimer(); } return Success; } int SaveScreens(int on, int mode) { return dixSaveScreens(serverClient, on, mode); } static Bool TileScreenSaver(ScreenPtr pScreen, int kind) { int j; int result; XID attributes[3]; Mask mask; WindowPtr pWin; CursorMetricRec cm; unsigned char *srcbits, *mskbits; CursorPtr cursor; XID cursorID = 0; int attri; mask = 0; attri = 0; switch (kind) { case SCREEN_IS_TILED: switch (pScreen->root->backgroundState) { case BackgroundPixel: attributes[attri++] = pScreen->root->background.pixel; mask |= CWBackPixel; break; case BackgroundPixmap: attributes[attri++] = None; mask |= CWBackPixmap; break; default: break; } break; case SCREEN_IS_BLACK: attributes[attri++] = pScreen->root->drawable.pScreen->blackPixel; mask |= CWBackPixel; break; } mask |= CWOverrideRedirect; attributes[attri++] = xTrue; /* * create a blank cursor */ cm.width = 16; cm.height = 16; cm.xhot = 8; cm.yhot = 8; srcbits = malloc(BitmapBytePad(32) * 16); mskbits = malloc(BitmapBytePad(32) * 16); if (!srcbits || !mskbits) { free(srcbits); free(mskbits); cursor = 0; } else { for (j = 0; j < BitmapBytePad(32) * 16; j++) srcbits[j] = mskbits[j] = 0x0; result = AllocARGBCursor(srcbits, mskbits, NULL, &cm, 0, 0, 0, 0, 0, 0, &cursor, serverClient, (XID) 0); if (cursor) { cursorID = FakeClientID(0); if (AddResource(cursorID, RT_CURSOR, (void *) cursor)) { attributes[attri] = cursorID; mask |= CWCursor; } else cursor = 0; } else { free(srcbits); free(mskbits); } } pWin = pScreen->screensaver.pWindow = CreateWindow(pScreen->screensaver.wid, pScreen->root, -RANDOM_WIDTH, -RANDOM_WIDTH, (unsigned short) pScreen->width + RANDOM_WIDTH, (unsigned short) pScreen->height + RANDOM_WIDTH, 0, InputOutput, mask, attributes, 0, serverClient, wVisual(pScreen->root), &result); if (cursor) FreeResource(cursorID, RT_NONE); if (!pWin) return FALSE; if (!AddResource(pWin->drawable.id, RT_WINDOW, (void *) pScreen->screensaver.pWindow)) return FALSE; if (mask & CWBackPixmap) { MakeRootTile(pWin); (*pWin->drawable.pScreen->ChangeWindowAttributes) (pWin, CWBackPixmap); } MapWindow(pWin, serverClient); return TRUE; } /* * FindWindowWithOptional * * search ancestors of the given window for an entry containing * a WindowOpt structure. Assumptions: some parent will * contain the structure. */ WindowPtr FindWindowWithOptional(WindowPtr w) { do w = w->parent; while (!w->optional); return w; } /* * CheckWindowOptionalNeed * * check each optional entry in the given window to see if * the value is satisfied by the default rules. If so, * release the optional record */ void CheckWindowOptionalNeed(WindowPtr w) { WindowOptPtr optional; WindowOptPtr parentOptional; if (!w->parent || !w->optional) return; optional = w->optional; if (optional->dontPropagateMask != DontPropagateMasks[w->dontPropagate]) return; if (optional->otherEventMasks != 0) return; if (optional->otherClients != NULL) return; if (optional->passiveGrabs != NULL) return; if (optional->userProps != NULL) return; if (optional->backingBitPlanes != (CARD32)~0L) return; if (optional->backingPixel != 0) return; if (optional->boundingShape != NULL) return; if (optional->clipShape != NULL) return; if (optional->inputShape != NULL) return; if (optional->inputMasks != NULL) return; if (optional->deviceCursors != NULL) { DevCursNodePtr pNode = optional->deviceCursors; while (pNode) { if (pNode->cursor != None) return; pNode = pNode->next; } } parentOptional = FindWindowWithOptional(w)->optional; if (optional->visual != parentOptional->visual) return; if (optional->cursor != None && (optional->cursor != parentOptional->cursor || w->parent->cursorIsNone)) return; if (optional->colormap != parentOptional->colormap) return; DisposeWindowOptional(w); } /* * MakeWindowOptional * * create an optional record and initialize it with the default * values. */ Bool MakeWindowOptional(WindowPtr pWin) { WindowOptPtr optional; WindowOptPtr parentOptional; if (pWin->optional) return TRUE; optional = malloc(sizeof(WindowOptRec)); if (!optional) return FALSE; optional->dontPropagateMask = DontPropagateMasks[pWin->dontPropagate]; optional->otherEventMasks = 0; optional->otherClients = NULL; optional->passiveGrabs = NULL; optional->userProps = NULL; optional->backingBitPlanes = ~0L; optional->backingPixel = 0; optional->boundingShape = NULL; optional->clipShape = NULL; optional->inputShape = NULL; optional->inputMasks = NULL; optional->deviceCursors = NULL; parentOptional = FindWindowWithOptional(pWin)->optional; optional->visual = parentOptional->visual; if (!pWin->cursorIsNone) { optional->cursor = RefCursor(parentOptional->cursor); } else { optional->cursor = None; } optional->colormap = parentOptional->colormap; pWin->optional = optional; return TRUE; } /* * Changes the cursor struct for the given device and the given window. * A cursor that does not have a device cursor set will use whatever the * standard cursor is for the window. If all devices have a cursor set, * changing the window cursor (e.g. using XDefineCursor()) will not have any * visible effect. Only when one of the device cursors is set to None again, * this device's cursor will display the changed standard cursor. * * CursorIsNone of the window struct is NOT modified if you set a device * cursor. * * Assumption: If there is a node for a device in the list, the device has a * cursor. If the cursor is set to None, it is inherited by the parent. */ int ChangeWindowDeviceCursor(WindowPtr pWin, DeviceIntPtr pDev, CursorPtr pCursor) { DevCursNodePtr pNode, pPrev; CursorPtr pOldCursor = NULL; ScreenPtr pScreen; WindowPtr pChild; if (!pWin->optional && !MakeWindowOptional(pWin)) return BadAlloc; /* 1) Check if window has device cursor set * Yes: 1.1) swap cursor with given cursor if parent does not have same * cursor, free old cursor * 1.2) free old cursor, use parent cursor * No: 1.1) add node to beginning of list. * 1.2) add cursor to node if parent does not have same cursor * 1.3) use parent cursor if parent does not have same cursor * 2) Patch up children if child has a devcursor * 2.1) if child has cursor None, it inherited from parent, set to old * cursor * 2.2) if child has same cursor as new cursor, remove and set to None */ pScreen = pWin->drawable.pScreen; if (WindowSeekDeviceCursor(pWin, pDev, &pNode, &pPrev)) { /* has device cursor */ if (pNode->cursor == pCursor) return Success; pOldCursor = pNode->cursor; if (!pCursor) { /* remove from list */ if (pPrev) pPrev->next = pNode->next; else /* first item in list */ pWin->optional->deviceCursors = pNode->next; free(pNode); goto out; } } else { /* no device cursor yet */ DevCursNodePtr pNewNode; if (!pCursor) return Success; pNewNode = malloc(sizeof(DevCursNodeRec)); pNewNode->dev = pDev; pNewNode->next = pWin->optional->deviceCursors; pWin->optional->deviceCursors = pNewNode; pNode = pNewNode; } if (pCursor && WindowParentHasDeviceCursor(pWin, pDev, pCursor)) pNode->cursor = None; else { pNode->cursor = RefCursor(pCursor); } pNode = pPrev = NULL; /* fix up children */ for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) { if (WindowSeekDeviceCursor(pChild, pDev, &pNode, &pPrev)) { if (pNode->cursor == None) { /* inherited from parent */ pNode->cursor = RefCursor(pOldCursor); } else if (pNode->cursor == pCursor) { pNode->cursor = None; FreeCursor(pCursor, (Cursor) 0); /* fix up refcnt */ } } } out: CursorVisible = TRUE; if (pWin->realized) WindowHasNewCursor(pWin); if (pOldCursor) FreeCursor(pOldCursor, (Cursor) 0); /* FIXME: We SHOULD check for an error value here XXX (comment taken from ChangeWindowAttributes) */ (*pScreen->ChangeWindowAttributes) (pWin, CWCursor); return Success; } /* Get device cursor for given device or None if none is set */ CursorPtr WindowGetDeviceCursor(WindowPtr pWin, DeviceIntPtr pDev) { DevCursorList pList; if (!pWin->optional || !pWin->optional->deviceCursors) return NULL; pList = pWin->optional->deviceCursors; while (pList) { if (pList->dev == pDev) { if (pList->cursor == None) /* inherited from parent */ return WindowGetDeviceCursor(pWin->parent, pDev); else return pList->cursor; } pList = pList->next; } return NULL; } /* Searches for a DevCursorNode for the given window and device. If one is * found, return True and set pNode and pPrev to the node and to the node * before the node respectively. Otherwise return False. * If the device is the first in list, pPrev is set to NULL. */ static Bool WindowSeekDeviceCursor(WindowPtr pWin, DeviceIntPtr pDev, DevCursNodePtr * pNode, DevCursNodePtr * pPrev) { DevCursorList pList; if (!pWin->optional) return FALSE; pList = pWin->optional->deviceCursors; if (pList && pList->dev == pDev) { *pNode = pList; *pPrev = NULL; return TRUE; } while (pList) { if (pList->next) { if (pList->next->dev == pDev) { *pNode = pList->next; *pPrev = pList; return TRUE; } } pList = pList->next; } return FALSE; } /* Return True if a parent has the same device cursor set or False if * otherwise */ static Bool WindowParentHasDeviceCursor(WindowPtr pWin, DeviceIntPtr pDev, CursorPtr pCursor) { WindowPtr pParent; DevCursNodePtr pParentNode, pParentPrev; pParent = pWin->parent; while (pParent) { if (WindowSeekDeviceCursor(pParent, pDev, &pParentNode, &pParentPrev)) { /* if there is a node in the list, the win has a dev cursor */ if (!pParentNode->cursor) /* inherited. */ pParent = pParent->parent; else if (pParentNode->cursor == pCursor) /* inherit */ return TRUE; else /* different cursor */ return FALSE; } else /* parent does not have a device cursor for our device */ return FALSE; } return FALSE; } /* * SetRootClip -- * Enable or disable rendering to the screen by * setting the root clip list and revalidating * all of the windows */ void SetRootClip(ScreenPtr pScreen, int enable) { WindowPtr pWin = pScreen->root; WindowPtr pChild; Bool WasViewable; Bool anyMarked = FALSE; WindowPtr pLayerWin; BoxRec box; enum RootClipMode mode = enable; if (!pWin) return; WasViewable = (Bool) (pWin->viewable); if (WasViewable) { for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) { (void) (*pScreen->MarkOverlappedWindows) (pChild, pChild, &pLayerWin); } (*pScreen->MarkWindow) (pWin); anyMarked = TRUE; if (pWin->valdata) { if (HasBorder(pWin)) { RegionPtr borderVisible; borderVisible = RegionCreate(NullBox, 1); RegionSubtract(borderVisible, &pWin->borderClip, &pWin->winSize); pWin->valdata->before.borderVisible = borderVisible; } pWin->valdata->before.resized = TRUE; } } if (mode != ROOT_CLIP_NONE) { pWin->drawable.width = pScreen->width; pWin->drawable.height = pScreen->height; box.x1 = 0; box.y1 = 0; box.x2 = pScreen->width; box.y2 = pScreen->height; RegionInit(&pWin->winSize, &box, 1); RegionInit(&pWin->borderSize, &box, 1); /* * Use REGION_BREAK to avoid optimizations in ValidateTree * that assume the root borderClip can't change well, normally * it doesn't...) */ RegionBreak(&pWin->clipList); /* For INPUT_ONLY, empty the borderClip so no rendering will ever * be attempted to the screen pixmap (only redirected windows), * but we keep borderSize as full regardless. */ if (WasViewable && mode == ROOT_CLIP_FULL) RegionReset(&pWin->borderClip, &box); else RegionEmpty(&pWin->borderClip); } else { RegionEmpty(&pWin->borderClip); RegionBreak(&pWin->clipList); } ResizeChildrenWinSize(pWin, 0, 0, 0, 0); if (WasViewable) { if (pWin->firstChild) { anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin->firstChild, pWin->firstChild, NULL); } else { (*pScreen->MarkWindow) (pWin); anyMarked = TRUE; } if (anyMarked) { (*pScreen->ValidateTree) (pWin, NullWindow, VTOther); (*pScreen->HandleExposures) (pWin); if (pScreen->PostValidateTree) (*pScreen->PostValidateTree) (pWin, NullWindow, VTOther); } } if (pWin->realized) WindowsRestructured(); FlushAllOutput(); } VisualPtr WindowGetVisual(WindowPtr pWin) { ScreenPtr pScreen = pWin->drawable.pScreen; VisualID vid = wVisual(pWin); int i; for (i = 0; i < pScreen->numVisuals; i++) if (pScreen->visuals[i].vid == vid) return &pScreen->visuals[i]; return 0; }