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Diffstat (limited to 'src/TMaction.c')
| -rw-r--r-- | src/TMaction.c | 1068 |
1 files changed, 1068 insertions, 0 deletions
diff --git a/src/TMaction.c b/src/TMaction.c new file mode 100644 index 0000000..b185f87 --- /dev/null +++ b/src/TMaction.c @@ -0,0 +1,1068 @@ +/* $Xorg: TMaction.c,v 1.5 2001/02/09 02:03:58 xorgcvs Exp $ */ +/*LINTLIBRARY*/ + +/*********************************************************** +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. + +*/ + +/* TMaction.c -- maintains the state table of actions for the translation + * manager. + */ + +#include "IntrinsicI.h" +#include "StringDefs.h" + +#if defined(__STDC__) && !defined(NORCONST) +#define RConst const +#else +#define RConst /**/ +#endif + +static String XtNtranslationError = "translationError"; + +typedef struct _CompiledAction{ + XrmQuark signature; + XtActionProc proc; +}CompiledAction, *CompiledActionTable; + + +#define GetClassActions(wc) \ + ((wc->core_class.actions) \ +? (((TMClassCache)wc->core_class.actions)->actions) \ +: NULL) + +static CompiledActionTable CompileActionTable(actions, count, stat, perm) + register struct _XtActionsRec *actions; + register Cardinal count; /* may be 0 */ + Boolean stat; /* if False, copy before compiling in place */ + Boolean perm; /* if False, use XrmStringToQuark */ +{ + register CompiledActionTable cActions; + register int i; + CompiledAction hold; + CompiledActionTable cTableHold; + XrmQuark (*func)(); + + if (!count) + return (CompiledActionTable) NULL; + func = (perm ? XrmPermStringToQuark : XrmStringToQuark); + + if (! stat) { + cTableHold = cActions = (CompiledActionTable) + __XtMalloc(count * sizeof(CompiledAction)); + + for (i=count; --i >= 0; cActions++, actions++) { + cActions->proc = actions->proc; + cActions->signature = (*func)(actions->string); + } + } else { + cTableHold = (CompiledActionTable) actions; + + for (i=count; --i >= 0; actions++) + ((CompiledActionTable) actions)->signature = + (*func)(actions->string); + } + cActions = cTableHold; + + /* Insertion sort. Whatever sort is used, it must be stable. */ + for (i=1; i <= count - 1; i++) { + register int j; + hold = cActions[i]; + j = i; + while (j && cActions[j-1].signature > hold.signature) { + cActions[j] = cActions[j-1]; + j--; + } + cActions[j] = hold; + } + + return cActions; +} + + +typedef struct _ActionListRec *ActionList; +typedef struct _ActionListRec { + ActionList next; + CompiledActionTable table; + TMShortCard count; +} ActionListRec; + +static void ReportUnboundActions(xlations, bindData) + XtTranslations xlations; + TMBindData bindData; +{ + TMSimpleStateTree stateTree = (TMSimpleStateTree)xlations->stateTreeTbl[0]; + Cardinal num_unbound = 0; + Cardinal num_params = 1; + char* message; + char messagebuf[1000]; + String params[1]; + register Cardinal num_chars = 0; + register Cardinal i, j; + XtActionProc *procs; + + for (i=0; i < xlations->numStateTrees; i++) { + if (bindData->simple.isComplex) + procs = TMGetComplexBindEntry(bindData, i)->procs; + else + procs = TMGetSimpleBindEntry(bindData, i)->procs; + + stateTree = (TMSimpleStateTree)xlations->stateTreeTbl[i]; + for (j=0; j < stateTree->numQuarks; j++) { + if (procs[j] == NULL) { + String s = XrmQuarkToString(stateTree->quarkTbl[j]); + if (num_unbound != 0) + num_chars += 2; + num_chars += strlen(s); + num_unbound++; + } + } + } + if (num_unbound == 0) + return; + message = XtStackAlloc (num_chars + 1, messagebuf); + if (message != NULL) { + *message = '\0'; + num_unbound = 0; + stateTree = (TMSimpleStateTree)xlations->stateTreeTbl[0]; + for (i=0; i < xlations->numStateTrees; i++) { + if (bindData->simple.isComplex) + procs = TMGetComplexBindEntry(bindData, i)->procs; + else + procs = TMGetSimpleBindEntry(bindData, i)->procs; + + stateTree = (TMSimpleStateTree)xlations->stateTreeTbl[i]; + for (j=0; j < stateTree->numQuarks; j++) { + if (procs[j] == NULL) { + String s = XrmQuarkToString(stateTree->quarkTbl[j]); + if (num_unbound != 0) + (void) strcat(message, ", "); + (void) strcat(message, s); + num_unbound++; + } + } + } + message[num_chars] = '\0'; + params[0] = message; + XtWarningMsg(XtNtranslationError,"unboundActions",XtCXtToolkitError, + "Actions not found: %s", + params, &num_params); + XtStackFree (message, messagebuf); + } +} + + +static CompiledAction *SearchActionTable(signature, actionTable, numActions) + XrmQuark signature; + CompiledActionTable actionTable; + Cardinal numActions; +{ + register int i, left, right; + + left = 0; + right = numActions - 1; + while (left <= right) { + i = (left + right) >> 1; + if (signature < actionTable[i].signature) + right = i - 1; + else if (signature > actionTable[i].signature) + left = i + 1; + else { + while (i && actionTable[i - 1].signature == signature) + i--; + return &actionTable[i]; + } + } + return (CompiledAction *) NULL; +} + +static int BindActions(stateTree, procs, compiledActionTable, numActions, ndxP) + TMSimpleStateTree stateTree; + XtActionProc *procs; + CompiledActionTable compiledActionTable; + TMShortCard numActions; + Cardinal *ndxP; +{ + register int unbound = stateTree->numQuarks - *ndxP; + CompiledAction* action; + register Cardinal ndx; + register Boolean savedNdx = False; + + for (ndx = *ndxP; ndx < stateTree->numQuarks; ndx++) { + if (procs[ndx] == NULL) { + /* attempt to bind it */ + XrmQuark q = stateTree->quarkTbl[ndx]; + + action = SearchActionTable(q, compiledActionTable, numActions); + if (action) { + procs[ndx] = action->proc; + unbound--; + } else if (!savedNdx) { + *ndxP= ndx; + savedNdx = True; + } + } else { + /* already bound, leave it alone */ + unbound--; + } + } + return unbound; +} + +typedef struct _TMBindCacheStatusRec{ + unsigned int boundInClass:1; + unsigned int boundInHierarchy:1; + unsigned int boundInContext:1; + unsigned int notFullyBound:1; + unsigned int refCount:28; +}TMBindCacheStatusRec, *TMBindCacheStatus; + +typedef struct _TMBindCacheRec{ + struct _TMBindCacheRec *next; + TMBindCacheStatusRec status; + TMStateTree stateTree; +#ifdef TRACE_TM + WidgetClass widgetClass; +#endif /* TRACE_TM */ + XtActionProc procs[1]; /* variable length */ +}TMBindCacheRec, *TMBindCache; + +typedef struct _TMClassCacheRec { + CompiledActionTable actions; + TMBindCacheRec *bindCache; +}TMClassCacheRec, *TMClassCache; + +#define IsPureClassBind(bc) \ + (bc->status.boundInClass && \ + !(bc->status.boundInHierarchy || \ + bc->status.boundInContext || \ + bc->status.notFullyBound)) + +#define GetClassCache(w) \ + ((TMClassCache)w->core.widget_class->core_class.actions) + + +static int BindProcs(widget, stateTree, procs, bindStatus) + Widget widget; + TMSimpleStateTree stateTree; + XtActionProc *procs; + TMBindCacheStatus bindStatus; +{ + register WidgetClass class; + register ActionList actionList; + int unbound = -1, newUnbound = -1; + Cardinal ndx = 0; + Widget w = widget; + + LOCK_PROCESS; + do { + class = w->core.widget_class; + do { + if (class->core_class.actions != NULL) + unbound = + BindActions(stateTree, + procs, + GetClassActions(class), + class->core_class.num_actions, + &ndx); + class = class->core_class.superclass; + } while (unbound != 0 && class != NULL); + if (unbound < (int)stateTree->numQuarks) + bindStatus->boundInClass = True; + else + bindStatus->boundInClass = False; + if (newUnbound == -1) + newUnbound = unbound; + w = XtParent(w); + } while (unbound != 0 && w != NULL); + + if (newUnbound > unbound) + bindStatus->boundInHierarchy = True; + else + bindStatus->boundInHierarchy = False; + + if (unbound) { + XtAppContext app = XtWidgetToApplicationContext(widget); + newUnbound = unbound; + for (actionList = app->action_table; + unbound != 0 && actionList != NULL; + actionList = actionList->next) { + unbound = BindActions(stateTree, + procs, + actionList->table, + actionList->count, + &ndx); + } + if (newUnbound > unbound) + bindStatus->boundInContext = True; + else + bindStatus->boundInContext = False; + + } + UNLOCK_PROCESS; + return unbound; +} + +static XtActionProc *TryBindCache(widget, stateTree) + Widget widget; + TMStateTree stateTree; +{ + TMClassCache classCache; + + LOCK_PROCESS; + classCache = GetClassCache(widget); + + if (classCache == NULL) + { + WidgetClass wc = XtClass(widget); + + wc->core_class.actions = (XtActionList) + _XtInitializeActionData(NULL, 0, True); + } + else + { + TMBindCache bindCache = + (TMBindCache)(classCache->bindCache); + for (; bindCache; bindCache = bindCache->next) + { + if (IsPureClassBind(bindCache) && + (stateTree == bindCache->stateTree)) + { + bindCache->status.refCount++; + UNLOCK_PROCESS; + return &bindCache->procs[0]; + } + } + } + UNLOCK_PROCESS; + return NULL; +} + + + +/* + * The class record actions field will point to the bind cache header + * after this call is made out of coreClassPartInit. + */ +#if NeedFunctionPrototypes +XtPointer _XtInitializeActionData( + register struct _XtActionsRec *actions, + register Cardinal count, + _XtBoolean inPlace + ) +#else +XtPointer _XtInitializeActionData(actions, count, inPlace) + register struct _XtActionsRec *actions; + register Cardinal count; + Boolean inPlace; +#endif +{ + TMClassCache classCache; + + classCache = XtNew(TMClassCacheRec); + classCache->actions = CompileActionTable(actions, count, inPlace, True); + classCache->bindCache = NULL; + return (XtPointer)classCache; +} + + +#define TM_BIND_CACHE_REALLOC 2 + +static XtActionProc *EnterBindCache(w, stateTree, procs, bindStatus) + Widget w; + TMSimpleStateTree stateTree; + XtActionProc *procs; + TMBindCacheStatus bindStatus; +{ + TMClassCache classCache; + TMBindCache* bindCachePtr; + TMShortCard procsSize; + TMBindCache bindCache; + + LOCK_PROCESS; + classCache = GetClassCache(w); + bindCachePtr = &classCache->bindCache; + procsSize = stateTree->numQuarks * sizeof(XtActionProc); + + for (bindCache = *bindCachePtr; + (*bindCachePtr); + bindCachePtr = &(*bindCachePtr)->next, bindCache = *bindCachePtr) + { + TMBindCacheStatus cacheStatus = &bindCache->status; + + if ((bindStatus->boundInClass == cacheStatus->boundInClass) && + (bindStatus->boundInHierarchy == cacheStatus->boundInHierarchy) && + (bindStatus->boundInContext == cacheStatus->boundInContext) && + (bindCache->stateTree == (TMStateTree)stateTree) && + !XtMemcmp(&bindCache->procs[0], procs, procsSize)) + { + bindCache->status.refCount++; + break; + } + } + if (*bindCachePtr == NULL) + { + *bindCachePtr = + bindCache = (TMBindCache) + __XtMalloc(sizeof(TMBindCacheRec) + + (procsSize - sizeof(XtActionProc))); + bindCache->next = NULL; + bindCache->status = *bindStatus; + bindCache->status.refCount = 1; + bindCache->stateTree = (TMStateTree)stateTree; +#ifdef TRACE_TM + bindCache->widgetClass = XtClass(w); + if (_XtGlobalTM.numBindCache == _XtGlobalTM.bindCacheTblSize) + { + _XtGlobalTM.bindCacheTblSize += 16; + _XtGlobalTM.bindCacheTbl = (TMBindCache *) + XtRealloc((char *)_XtGlobalTM.bindCacheTbl, + ((_XtGlobalTM.bindCacheTblSize) * + sizeof(TMBindCache))); + } + _XtGlobalTM.bindCacheTbl[_XtGlobalTM.numBindCache++] = bindCache; +#endif /* TRACE_TM */ + XtMemmove((XtPointer)&bindCache->procs[0], + (XtPointer)procs, procsSize); + } + UNLOCK_PROCESS; + return &bindCache->procs[0]; +} + +static void RemoveFromBindCache(w,procs) + Widget w; + XtActionProc *procs; +{ + TMClassCache classCache; + TMBindCache* bindCachePtr; + TMBindCache bindCache; + XtAppContext app = XtWidgetToApplicationContext (w); + + LOCK_PROCESS; + classCache = GetClassCache(w); + bindCachePtr = (TMBindCache *)&classCache->bindCache; + + for (bindCache = *bindCachePtr; + *bindCachePtr; + bindCachePtr = &(*bindCachePtr)->next, bindCache = *bindCachePtr) + { + if (&bindCache->procs[0] == procs) + { + if (--bindCache->status.refCount == 0) + { +#ifdef TRACE_TM + TMShortCard j; + Boolean found = False; + TMBindCache *tbl = _XtGlobalTM.bindCacheTbl; + + for (j = 0; j < _XtGlobalTM.numBindCache; j++) { + if (found) + tbl[j-1] = tbl[j]; + if (tbl[j] == bindCache) + found = True; + } + if (!found) + XtWarning("where's the action ??? "); + else + _XtGlobalTM.numBindCache--; +#endif /* TRACE_TM */ + *bindCachePtr = bindCache->next; + bindCache->next = app->free_bindings; + app->free_bindings = bindCache; + } + break; + } + } + UNLOCK_PROCESS; +} + +/* ARGSUSED */ +static void RemoveAccelerators(widget,closure,data) + Widget widget; + XtPointer closure, data; +{ + Widget destination = (Widget)closure; + TMComplexBindProcs bindProcs; + XtTranslations stackXlations[16]; + XtTranslations *xlationsList, destXlations; + TMShortCard i, numXlations = 0; + + if ((destXlations = destination->core.tm.translations) == NULL) { + XtAppWarningMsg(XtWidgetToApplicationContext(widget), + XtNtranslationError,"nullTable",XtCXtToolkitError, + "Can't remove accelerators from NULL table", + (String *)NULL, (Cardinal *)NULL); + return; + } + + xlationsList = (XtTranslations *) + XtStackAlloc((destXlations->numStateTrees * sizeof(XtTranslations)), + stackXlations); + + for (i = 0, bindProcs = TMGetComplexBindEntry(destination->core.tm.proc_table, i); + i < destXlations->numStateTrees; + i++, bindProcs++) { + if (bindProcs->widget == widget) { + /* + * if it's being destroyed don't do all the work + */ + if (destination->core.being_destroyed) { + bindProcs->procs = NULL; + } + else + xlationsList[numXlations] = bindProcs->aXlations; + numXlations++; + } + } + + if (numXlations == 0) + XtAppWarningMsg(XtWidgetToApplicationContext(widget), + XtNtranslationError,"nullTable",XtCXtToolkitError, + "Tried to remove nonexistent accelerators", + (String *)NULL, (Cardinal *)NULL); + else { + if (!destination->core.being_destroyed) + for (i = 0; i < numXlations; i++) + _XtUnmergeTranslations(destination, xlationsList[i]); + } + XtStackFree((char *)xlationsList, stackXlations); +} + +void _XtBindActions(widget, tm) + Widget widget; + XtTM tm; +{ + XtTranslations xlations = tm->translations; + TMSimpleStateTree stateTree; + int globalUnbound = 0; + Cardinal i; + TMBindData bindData = (TMBindData)tm->proc_table; + TMSimpleBindProcs simpleBindProcs; + TMComplexBindProcs complexBindProcs; + XtActionProc *newProcs; + Widget bindWidget; + + if ((xlations == NULL) || widget->core.being_destroyed) + return; + + stateTree = (TMSimpleStateTree)xlations->stateTreeTbl[0]; + + for (i = 0; i < xlations->numStateTrees; i++) + { + stateTree = (TMSimpleStateTree)xlations->stateTreeTbl[i]; + if (bindData->simple.isComplex) { + complexBindProcs = TMGetComplexBindEntry(bindData, i); + if (complexBindProcs->widget) { + bindWidget = complexBindProcs->widget; + + if (bindWidget->core.destroy_callbacks != NULL) + _XtAddCallbackOnce((InternalCallbackList *) + &bindWidget->core.destroy_callbacks, + RemoveAccelerators, + (XtPointer)widget); + else + _XtAddCallback((InternalCallbackList *) + &bindWidget->core.destroy_callbacks, + RemoveAccelerators, + (XtPointer)widget); + } + else + bindWidget = widget; + } + else { + simpleBindProcs = TMGetSimpleBindEntry(bindData, i); + bindWidget = widget; + } + if ((newProcs = + TryBindCache(bindWidget,(TMStateTree)stateTree)) == NULL) + { + XtActionProc *procs, stackProcs[256]; + int localUnbound; + TMBindCacheStatusRec bcStatusRec; + + procs = (XtActionProc *) + XtStackAlloc(stateTree->numQuarks * sizeof(XtActionProc), + stackProcs); + XtBZero((XtPointer)procs, + stateTree->numQuarks * sizeof(XtActionProc)); + + localUnbound = BindProcs(bindWidget, + stateTree, + procs, + &bcStatusRec); + + if (localUnbound) + bcStatusRec.notFullyBound = True; + else + bcStatusRec.notFullyBound = False; + + newProcs = + EnterBindCache(bindWidget, + stateTree, + procs, + &bcStatusRec); + XtStackFree((XtPointer)procs, (XtPointer)stackProcs); + globalUnbound += localUnbound; + } + if (bindData->simple.isComplex) + complexBindProcs->procs = newProcs; + else + simpleBindProcs->procs = newProcs; + } + if (globalUnbound) + ReportUnboundActions(xlations, + (TMBindData)tm->proc_table); +} + + +void _XtUnbindActions(widget, xlations, bindData) + Widget widget; + XtTranslations xlations; + TMBindData bindData; +{ + Cardinal i; + Widget bindWidget; + XtActionProc *procs; + + if ((xlations == NULL) || !XtIsRealized(widget)) return; + + for (i = 0; i < xlations->numStateTrees; i++) { + if (bindData->simple.isComplex) { + TMComplexBindProcs complexBindProcs; + + complexBindProcs = TMGetComplexBindEntry(bindData, i); + + if (complexBindProcs->widget) { + /* + * check for this being an accelerator binding whose + * source is gone ( set by RemoveAccelerators) + */ + if (complexBindProcs->procs == NULL) + continue; + + XtRemoveCallback(complexBindProcs->widget, + XtNdestroyCallback, + RemoveAccelerators, + (XtPointer)widget); + bindWidget = complexBindProcs->widget; + } + else + bindWidget = widget; + procs = complexBindProcs->procs; + complexBindProcs->procs = NULL; + } + else { + TMSimpleBindProcs simpleBindProcs; + simpleBindProcs = TMGetSimpleBindEntry(bindData,i); + procs = simpleBindProcs->procs; + simpleBindProcs->procs = NULL; + bindWidget = widget; + } + RemoveFromBindCache(bindWidget, procs); + } +} + +#ifdef notdef +void _XtRemoveBindProcsByIndex(w, bindData, ndx) + Widget w; + TMBindData bindData; + TMShortCard ndx; +{ + TMShortCard i = ndx; + TMBindProcs bindProcs = (TMBindProcs)&bindData->bindTbl[0]; + + RemoveFromBindCache(bindProcs->widget ? bindProcs->widget : w, + bindProcs[i].procs); + + for (; i < bindData->bindTblSize; i++) + bindProcs[i] = bindProcs[i+1]; +} +#endif /* notdef */ + +/* + * used to free all copied action tables, called from DestroyAppContext + */ +void _XtFreeActions(actions) + ActionList actions; +{ + ActionList curr, next; + + for (curr = actions; curr;) { + next = curr->next; + XtFree((char *)curr->table); + XtFree((char *)curr); + curr = next; + } +} + +void XtAddActions(actions, num_actions) + XtActionList actions; + Cardinal num_actions; +{ + XtAppAddActions(_XtDefaultAppContext(), actions, num_actions); +} + +void XtAppAddActions(app, actions, num_actions) + XtAppContext app; + XtActionList actions; + Cardinal num_actions; +{ + register ActionList rec; + + LOCK_APP(app); + rec = XtNew(ActionListRec); + rec->next = app->action_table; + app->action_table = rec; + rec->table = CompileActionTable(actions, num_actions, False, False); + rec->count = num_actions; + UNLOCK_APP(app); +} + +void XtGetActionList(widget_class, actions_return, num_actions_return) + WidgetClass widget_class; + XtActionList* actions_return; + Cardinal* num_actions_return; +{ + XtActionList list; + CompiledActionTable table; + int i; + + *actions_return = NULL; + *num_actions_return = 0; + + LOCK_PROCESS; + if (! widget_class->core_class.class_inited) { + UNLOCK_PROCESS; + return; + } + if (! (widget_class->core_class.class_inited & WidgetClassFlag)) { + UNLOCK_PROCESS; + return; + } + *num_actions_return = widget_class->core_class.num_actions; + if (*num_actions_return) { + list = *actions_return = (XtActionList) + __XtMalloc(*num_actions_return * sizeof(XtActionsRec)); + table = GetClassActions(widget_class); + for (i= (*num_actions_return); --i >= 0; list++, table++) { + list->string = XrmQuarkToString(table->signature); + list->proc = table->proc; + } + } + UNLOCK_PROCESS; +} + +/*********************************************************************** + * + * Pop-up and Grab stuff + * + ***********************************************************************/ + +static Widget _XtFindPopup(widget, name) + Widget widget; + String name; +{ + register Cardinal i; + register XrmQuark q; + register Widget w; + + q = XrmStringToQuark(name); + + for (w=widget; w != NULL; w=w->core.parent) + for (i=0; i<w->core.num_popups; i++) + if (w->core.popup_list[i]->core.xrm_name == q) + return w->core.popup_list[i]; + + return NULL; +} + +void XtMenuPopupAction(widget, event, params, num_params) + Widget widget; + XEvent *event; + String *params; + Cardinal *num_params; +{ + Boolean spring_loaded; + register Widget popup_shell; + XtAppContext app = XtWidgetToApplicationContext(widget); + + LOCK_APP(app); + if (*num_params != 1) { + XtAppWarningMsg(app, + "invalidParameters","xtMenuPopupAction",XtCXtToolkitError, + "MenuPopup wants exactly one argument", + (String *)NULL, (Cardinal *)NULL); + UNLOCK_APP(app); + return; + } + + if (event->type == ButtonPress) + spring_loaded = True; + else if (event->type == KeyPress || event->type == EnterNotify) + spring_loaded = False; + else { + XtAppWarningMsg(app, + "invalidPopup","unsupportedOperation",XtCXtToolkitError, +"Pop-up menu creation is only supported on ButtonPress, KeyPress or EnterNotify events.", + (String *)NULL, (Cardinal *)NULL); + UNLOCK_APP(app); + return; + } + + popup_shell = _XtFindPopup(widget, params[0]); + if (popup_shell == NULL) { + XtAppWarningMsg(app, + "invalidPopup","xtMenuPopup",XtCXtToolkitError, + "Can't find popup widget \"%s\" in XtMenuPopup", + params, num_params); + UNLOCK_APP(app); + return; + } + + if (spring_loaded) _XtPopup(popup_shell, XtGrabExclusive, TRUE); + else _XtPopup(popup_shell, XtGrabNonexclusive, FALSE); + UNLOCK_APP(app); +} + + +/*ARGSUSED*/ +static void _XtMenuPopdownAction(widget, event, params, num_params) + Widget widget; + XEvent *event; + String *params; + Cardinal *num_params; +{ + Widget popup_shell; + + if (*num_params == 0) { + XtPopdown(widget); + } else if (*num_params == 1) { + popup_shell = _XtFindPopup(widget, params[0]); + if (popup_shell == NULL) { + XtAppWarningMsg(XtWidgetToApplicationContext(widget), + "invalidPopup","xtMenuPopdown",XtCXtToolkitError, + "Can't find popup widget \"%s\" in XtMenuPopdown", + params, num_params); + return; + } + XtPopdown(popup_shell); + } else { + XtAppWarningMsg(XtWidgetToApplicationContext(widget), + "invalidParameters","xtMenuPopdown",XtCXtToolkitError, + "XtMenuPopdown called with num_params != 0 or 1", + (String *)NULL, (Cardinal *)NULL); + } +} + +static XtActionsRec RConst tmActions[] = { + {"XtMenuPopup", XtMenuPopupAction}, + {"XtMenuPopdown", _XtMenuPopdownAction}, + {"MenuPopup", XtMenuPopupAction}, /* old & obsolete */ + {"MenuPopdown", _XtMenuPopdownAction}, /* ditto */ +#ifndef NO_MIT_HACKS + {"XtDisplayTranslations", _XtDisplayTranslations}, + {"XtDisplayAccelerators", _XtDisplayAccelerators}, + {"XtDisplayInstalledAccelerators", _XtDisplayInstalledAccelerators}, +#endif +}; + + +void _XtPopupInitialize(app) + XtAppContext app; +{ + register ActionList rec; + + /* + * The _XtGlobalTM.newMatchSemantics flag determines whether + * we support old or new matching + * behavior. This is mainly an issue of whether subsequent lhs will + * get pushed up in the match table if a lhs containing thier initial + * sequence has already been encountered. Currently inited to False; + */ +#ifdef NEW_TM + _XtGlobalTM.newMatchSemantics = True; +#else + _XtGlobalTM.newMatchSemantics = False; +#endif + + rec = XtNew(ActionListRec); + rec->next = app->action_table; + app->action_table = rec; + LOCK_PROCESS; + rec->table = CompileActionTable(tmActions, XtNumber(tmActions), False, + True); + rec->count = XtNumber(tmActions); + UNLOCK_PROCESS; + _XtGrabInitialize(app); +} + + +#if NeedFunctionPrototypes +void XtCallActionProc( + Widget widget, + _Xconst char* action, + XEvent *event, + String *params, + Cardinal num_params + ) +#else +void XtCallActionProc(widget, action, event, params, num_params) + Widget widget; + String action; + XEvent *event; + String *params; + Cardinal num_params; +#endif +{ + CompiledAction* actionP; + XrmQuark q = XrmStringToQuark(action); + Widget w = widget; + XtAppContext app = XtWidgetToApplicationContext(widget); + ActionList actionList; + Cardinal i; + + LOCK_APP(app); + XtCheckSubclass(widget, coreWidgetClass, + "XtCallActionProc first argument is not a subclass of Core"); + LOCK_PROCESS; + do { + WidgetClass class = XtClass(w); + do { + if ((actionP = GetClassActions(class)) != NULL) + for (i = 0; + i < class->core_class.num_actions; + i++, actionP++) { + + if (actionP->signature == q) { + ActionHook hook = app->action_hook_list; + while (hook != NULL) { + (*hook->proc)( widget, + hook->closure, + (String)action, + event, + params, + &num_params + ); + hook= hook->next; + } + (*(actionP->proc)) + (widget, event, params, &num_params); + UNLOCK_PROCESS; + UNLOCK_APP(app); + return; + } + } + class = class->core_class.superclass; + } while (class != NULL); + w = XtParent(w); + } while (w != NULL); + UNLOCK_PROCESS; + + for (actionList = app->action_table; + actionList != NULL; + actionList = actionList->next) { + + for (i = 0, actionP = actionList->table; + i < actionList->count; + i++, actionP++) { + if (actionP->signature == q) { + ActionHook hook = app->action_hook_list; + while (hook != NULL) { + (*hook->proc)( widget, + hook->closure, + (String)action, + event, + params, + &num_params + ); + hook= hook->next; + } + (*(actionP->proc)) + (widget, event, params, &num_params); + UNLOCK_APP(app); + return; + } + } + + } + + { + String params[2]; + Cardinal num_params = 2; + params[0] = (String)action; + params[1] = XtName(widget); + XtAppWarningMsg(app, + "noActionProc", "xtCallActionProc", XtCXtToolkitError, + "No action proc named \"%s\" is registered for widget \"%s\"", + params, &num_params + ); + } + UNLOCK_APP(app); +} + +void _XtDoFreeBindings(app) + XtAppContext app; +{ + TMBindCache bcp; + + while (app->free_bindings) { + bcp = app->free_bindings->next; + XtFree ((char *) app->free_bindings); + app->free_bindings = bcp; + } +} |