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+/* $Xorg: TMgrab.c,v 1.4 2001/02/09 02:03:58 xorgcvs Exp $ */
+
+/***********************************************************
+Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts
+Copyright 1993 by Sun Microsystems, Inc. Mountain View, CA.
+
+ 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 names of 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, 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.
+
+*/
+
+/*LINTLIBRARY*/
+#include "IntrinsicI.h"
+
+typedef struct _GrabActionRec {
+ struct _GrabActionRec* next;
+ XtActionProc action_proc;
+ Boolean owner_events;
+ unsigned int event_mask;
+ int pointer_mode, keyboard_mode;
+} GrabActionRec;
+
+static GrabActionRec *grabActionList = NULL;
+
+static void GrabAllCorrectKeys(widget, typeMatch, modMatch, grabP)
+ Widget widget;
+ TMTypeMatch typeMatch;
+ TMModifierMatch modMatch;
+ GrabActionRec* grabP;
+{
+ Display *dpy = XtDisplay(widget);
+ KeyCode *keycodes, *keycodeP;
+ Cardinal keycount;
+ Modifiers careOn = 0;
+ Modifiers careMask = 0;
+
+ if (modMatch->lateModifiers) {
+ Boolean resolved;
+ resolved = _XtComputeLateBindings(dpy, modMatch->lateModifiers,
+ &careOn, &careMask);
+ if (!resolved) return;
+ }
+ careOn |= modMatch->modifiers;
+ careMask |= modMatch->modifierMask;
+
+ XtKeysymToKeycodeList(
+ dpy,
+ (KeySym)typeMatch->eventCode,
+ &keycodes,
+ &keycount
+ );
+ if (keycount == 0) return;
+ for (keycodeP = keycodes; keycount--; keycodeP++) {
+ if (modMatch->standard) {
+ /* find standard modifiers that produce this keysym */
+ KeySym keysym;
+ int std_mods, least_mod;
+ Modifiers modifiers_return;
+ XtTranslateKeycode( dpy, *keycodeP, (Modifiers)0,
+ &modifiers_return, &keysym );
+ if (careOn & modifiers_return)
+ return;
+ if (keysym == typeMatch->eventCode) {
+ XtGrabKey(widget, *keycodeP, careOn,
+ grabP->owner_events,
+ grabP->pointer_mode,
+ grabP->keyboard_mode
+ );
+ /* continue; */ /* grab all modifier combinations */
+ }
+ least_mod = modifiers_return & (~modifiers_return + 1);
+ for (std_mods = modifiers_return;
+ std_mods >= least_mod; std_mods--) {
+ Modifiers dummy;
+ /* check all useful combinations of modifier bits */
+ if (modifiers_return & std_mods &&
+ !(~modifiers_return & std_mods)) {
+ XtTranslateKeycode( dpy, *keycodeP,
+ (Modifiers)std_mods,
+ &dummy, &keysym );
+ if (keysym == typeMatch->eventCode) {
+ XtGrabKey(widget, *keycodeP,
+ careOn | (Modifiers) std_mods,
+ grabP->owner_events,
+ grabP->pointer_mode,
+ grabP->keyboard_mode
+ );
+ /* break; */ /* grab all modifier combinations */
+ }
+ }
+ }
+ } else /* !event->standard */ {
+ XtGrabKey(widget, *keycodeP, careOn,
+ grabP->owner_events,
+ grabP->pointer_mode,
+ grabP->keyboard_mode
+ );
+ }
+ }
+ XtFree((char *)keycodes);
+}
+
+typedef struct {
+ TMShortCard count;
+ Widget widget;
+ GrabActionRec *grabP;
+}DoGrabRec;
+
+static Boolean DoGrab(state, data)
+ StatePtr state;
+ XtPointer data;
+{
+ DoGrabRec *doGrabP = (DoGrabRec *)data;
+ GrabActionRec* grabP = doGrabP->grabP;
+ Widget widget = doGrabP->widget;
+ TMShortCard count = doGrabP->count;
+ TMShortCard typeIndex = state->typeIndex;
+ TMShortCard modIndex = state->modIndex;
+ ActionRec *action;
+ TMTypeMatch typeMatch;
+ TMModifierMatch modMatch;
+ Modifiers careOn = 0;
+ Modifiers careMask = 0;
+ Boolean resolved;
+
+ LOCK_PROCESS;
+ typeMatch = TMGetTypeMatch(typeIndex);
+ modMatch = TMGetModifierMatch(modIndex);
+
+ for (action = state->actions; action; action = action->next)
+ if (count == action->idx) break;
+ if (!action) {
+ UNLOCK_PROCESS;
+ return False;
+ }
+
+ switch (typeMatch->eventType) {
+ case ButtonPress:
+ case ButtonRelease:
+ if (modMatch->lateModifiers) {
+ resolved = _XtComputeLateBindings(XtDisplay(widget),
+ modMatch->lateModifiers,
+ &careOn, &careMask);
+ if (!resolved) break;
+ }
+ careOn |= modMatch->modifiers;
+ XtGrabButton(
+ widget,
+ (unsigned) typeMatch->eventCode,
+ careOn,
+ grabP->owner_events,
+ grabP->event_mask,
+ grabP->pointer_mode,
+ grabP->keyboard_mode,
+ None,
+ None
+ );
+ break;
+
+ case KeyPress:
+ case KeyRelease:
+ GrabAllCorrectKeys(widget, typeMatch, modMatch, grabP);
+ break;
+
+ case EnterNotify:
+ break;
+
+ default:
+ XtAppWarningMsg(XtWidgetToApplicationContext(widget),
+ "invalidPopup","unsupportedOperation",XtCXtToolkitError,
+ "Pop-up menu creation is only supported on Button, Key or EnterNotify events.",
+ (String *)NULL, (Cardinal *)NULL);
+ break;
+ }
+ UNLOCK_PROCESS;
+ return False;
+}
+
+void _XtRegisterGrabs(widget)
+ Widget widget;
+{
+ XtTranslations xlations = widget->core.tm.translations;
+ TMComplexStateTree *stateTreePtr;
+ unsigned int count;
+ TMShortCard i;
+ TMBindData bindData = (TMBindData) widget->core.tm.proc_table;
+ XtActionProc *procs;
+
+ if (! XtIsRealized(widget) || widget->core.being_destroyed)
+ return;
+
+ /* walk the widget instance action bindings table looking for */
+ /* actions registered as grab actions. */
+ /* when you find one, do a grab on the triggering event */
+
+ if (xlations == NULL) return;
+ stateTreePtr = (TMComplexStateTree *) xlations->stateTreeTbl;
+ if (*stateTreePtr == NULL) return;
+ for (i = 0; i < xlations->numStateTrees; i++, stateTreePtr++) {
+ if (bindData->simple.isComplex)
+ procs = TMGetComplexBindEntry(bindData, i)->procs;
+ else
+ procs = TMGetSimpleBindEntry(bindData, i)->procs;
+ for (count=0; count < (*stateTreePtr)->numQuarks; count++) {
+ GrabActionRec* grabP;
+ DoGrabRec doGrab;
+
+ LOCK_PROCESS;
+ for (grabP = grabActionList; grabP != NULL; grabP = grabP->next) {
+ if (grabP->action_proc == procs[count]) {
+ /* we've found a "grabber" in the action table. Find the
+ * states that call this action. Note that if there is
+ * more than one "grabber" in the action table, we end
+ * up searching all of the states multiple times.
+ */
+ doGrab.widget = widget;
+ doGrab.grabP = grabP;
+ doGrab.count = count;
+ _XtTraverseStateTree((TMStateTree)*stateTreePtr,
+ DoGrab,
+ (XtPointer)&doGrab);
+ }
+ }
+ UNLOCK_PROCESS;
+ }
+ }
+}
+
+#if NeedFunctionPrototypes
+void XtRegisterGrabAction(
+ XtActionProc action_proc,
+ _XtBoolean owner_events,
+ unsigned int event_mask,
+ int pointer_mode,
+ int keyboard_mode
+ )
+#else
+void XtRegisterGrabAction(action_proc, owner_events, event_mask,
+ pointer_mode, keyboard_mode)
+ XtActionProc action_proc;
+ Boolean owner_events;
+ unsigned int event_mask;
+ int pointer_mode, keyboard_mode;
+#endif
+{
+ GrabActionRec* actionP;
+
+ LOCK_PROCESS;
+ for (actionP = grabActionList; actionP != NULL; actionP = actionP->next) {
+ if (actionP->action_proc == action_proc) break;
+ }
+ if (actionP == NULL) {
+ actionP = XtNew(GrabActionRec);
+ actionP->action_proc = action_proc;
+ actionP->next = grabActionList;
+ grabActionList = actionP;
+ }
+#ifdef DEBUG
+ else
+ if ( actionP->owner_events != owner_events
+ || actionP->event_mask != event_mask
+ || actionP->pointer_mode != pointer_mode
+ || actionP->keyboard_mode != keyboard_mode) {
+ Cardinal n = 0;
+ XtWarningMsg(
+ "argsReplaced", "xtRegisterGrabAction", XtCXtToolkitError,
+ "XtRegisterGrabAction called on same proc with different args",
+ NULL, &n);
+ }
+#endif /*DEBUG*/
+
+ actionP->owner_events = owner_events;
+ actionP->event_mask = event_mask;
+ actionP->pointer_mode = pointer_mode;
+ actionP->keyboard_mode = keyboard_mode;
+ UNLOCK_PROCESS;
+}
+
+/*ARGSUSED*/
+void _XtGrabInitialize(app)
+ XtAppContext app;
+{
+ LOCK_PROCESS;
+ if (grabActionList == NULL)
+ XtRegisterGrabAction( XtMenuPopupAction, True,
+ (unsigned)(ButtonPressMask | ButtonReleaseMask),
+ GrabModeAsync,
+ GrabModeAsync
+ );
+ UNLOCK_PROCESS;
+
+}
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