diff options
Diffstat (limited to 'src/EventUtil.c')
| -rw-r--r-- | src/EventUtil.c | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/src/EventUtil.c b/src/EventUtil.c new file mode 100644 index 0000000..54bdfc0 --- /dev/null +++ b/src/EventUtil.c @@ -0,0 +1,221 @@ +/* $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. + +*/ + +#include "IntrinsicI.h" +#include "PassivGraI.h" +#include "StringDefs.h" + +static XContext perWidgetInputContext = 0; + +void _XtFreePerWidgetInput(w, pwi) + 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. + */ +#if NeedFunctionPrototypes +XtPerWidgetInput _XtGetPerWidgetInput( + Widget widget, + _XtBoolean create + ) +#else +XtPerWidgetInput _XtGetPerWidgetInput(widget, create) + Widget widget; + Boolean create; +#endif +{ + 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(listPtr, maxElemsPtr, numElemsPtr, start, breakWidget) + Widget **listPtr; + int *maxElemsPtr, *numElemsPtr; + Widget start, 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 == *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(event, widget, mask, pdi) + 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(event, widget, mask, pdi) + 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); + } +} |