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IABSD.fr/xenocara/lib/libXt/src/EventUtil.c
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- lib/libXt/src/EventUtil.c
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/* $Xorg: EventUtil.c,v 1.4 2001/02/09 02:03:54 xorgcvs Exp $ */ /******************************************************** Copyright 1988 by Hewlett-Packard Company Copyright 1987, 1988, 1989 by Digital Equipment Corporation, Maynard, Massachusetts Copyright 1993 by Sun Microsystems, Inc. Mountain View, CA. 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 names of Hewlett-Packard, Digital, or Sun 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. SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT- NESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SUN BE LI- ABLE 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. ********************************************************/ /* Copyright 1987, 1988, 1989, 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. */ /* $XFree86: xc/lib/Xt/EventUtil.c,v 1.6 2001/12/14 19:56:13 dawes Exp $ */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include "IntrinsicI.h" #include "PassivGraI.h" #include "StringDefs.h" #include "EventI.h" static XContext perWidgetInputContext = 0; void _XtFreePerWidgetInput( Widget w, XtPerWidgetInput pwi) { LOCK_PROCESS; XDeleteContext(XtDisplay(w), (Window)w, perWidgetInputContext); XtFree((char *)pwi); UNLOCK_PROCESS; } /* * This routine gets the passive list associated with the widget * from the context manager. */ XtPerWidgetInput _XtGetPerWidgetInput( Widget widget, _XtBoolean create) { XtPerWidgetInput pwi = NULL; Display *dpy = widget->core.screen->display; LOCK_PROCESS; if (! perWidgetInputContext) perWidgetInputContext = XUniqueContext(); if (XFindContext(dpy, (Window)widget, perWidgetInputContext, (XPointer *)&pwi) && create) { pwi = (XtPerWidgetInput) __XtMalloc((unsigned) sizeof(XtPerWidgetInputRec)); pwi->focusKid = NULL; pwi->queryEventDescendant = NULL; pwi->focalPoint = XtUnrelated; pwi->keyList = pwi->ptrList = NULL; pwi->haveFocus = pwi->map_handler_added = pwi->realize_handler_added = pwi->active_handler_added = FALSE; XtAddCallback(widget, XtNdestroyCallback, _XtDestroyServerGrabs, (XtPointer)pwi); (void) XSaveContext(dpy, (Window)widget, perWidgetInputContext, (char *) pwi); } UNLOCK_PROCESS; return pwi; } void _XtFillAncestorList( Widget **listPtr, int *maxElemsPtr, int *numElemsPtr, Widget start, Widget breakWidget) { #define CACHESIZE 16 Cardinal i; Widget w; Widget *trace = *listPtr; /* First time in, allocate the ancestor list */ if (trace == NULL) { trace = (Widget *) __XtMalloc(CACHESIZE * sizeof(Widget)); *maxElemsPtr = CACHESIZE; } /* First fill in the ancestor list */ trace[0] = start; for (i = 1, w = XtParent(start); w != NULL && !XtIsShell(trace[i-1]) && trace[i-1] != breakWidget; w = XtParent(w), i++) { if (i == (Cardinal) *maxElemsPtr) { /* This should rarely happen, but if it does it'll probably happen again, so grow the ancestor list */ *maxElemsPtr += CACHESIZE; trace = (Widget *) XtRealloc((char*)trace, sizeof(Widget) * (*maxElemsPtr)); } trace[i] = w; } *listPtr = trace; *numElemsPtr = i; #undef CACHESIZE } Widget _XtFindRemapWidget( XEvent *event, Widget widget, EventMask mask, XtPerDisplayInput pdi) { Widget dspWidget = widget; if (!pdi->traceDepth || !(widget == pdi->trace[0])) { _XtFillAncestorList(&pdi->trace, &pdi->traceMax, &pdi->traceDepth, widget, NULL); pdi->focusWidget = NULL; /* invalidate the focus cache */ } if (mask & (KeyPressMask | KeyReleaseMask)) dspWidget = _XtProcessKeyboardEvent((XKeyEvent*)event, widget, pdi); else if (mask &(ButtonPressMask | ButtonReleaseMask)) dspWidget = _XtProcessPointerEvent((XButtonEvent*)event, widget,pdi); return dspWidget; } void _XtUngrabBadGrabs( XEvent *event, Widget widget, EventMask mask, XtPerDisplayInput pdi) { XKeyEvent * ke = (XKeyEvent *) event; if (mask & (KeyPressMask | KeyReleaseMask)) { if (IsServerGrab(pdi->keyboard.grabType) && !_XtOnGrabList(pdi->keyboard.grab.widget, pdi->grabList)) XtUngrabKeyboard(widget, ke->time); } else { if (IsServerGrab(pdi->pointer.grabType) && !_XtOnGrabList(pdi->pointer.grab.widget, pdi->grabList)) XtUngrabPointer(widget, ke->time); } }