| File: | src/Selection.c |
| Location: | line 1683, column 24 |
| Description: | Assigned value is garbage or undefined |
| 1 | /*********************************************************** | |||
| 2 | Copyright (c) 1993, Oracle and/or its affiliates. All rights reserved. | |||
| 3 | ||||
| 4 | Permission is hereby granted, free of charge, to any person obtaining a | |||
| 5 | copy of this software and associated documentation files (the "Software"), | |||
| 6 | to deal in the Software without restriction, including without limitation | |||
| 7 | the rights to use, copy, modify, merge, publish, distribute, sublicense, | |||
| 8 | and/or sell copies of the Software, and to permit persons to whom the | |||
| 9 | Software is furnished to do so, subject to the following conditions: | |||
| 10 | ||||
| 11 | The above copyright notice and this permission notice (including the next | |||
| 12 | paragraph) shall be included in all copies or substantial portions of the | |||
| 13 | Software. | |||
| 14 | ||||
| 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||
| 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||
| 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |||
| 18 | THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |||
| 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |||
| 20 | FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |||
| 21 | DEALINGS IN THE SOFTWARE. | |||
| 22 | ||||
| 23 | Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts. | |||
| 24 | ||||
| 25 | All Rights Reserved | |||
| 26 | ||||
| 27 | Permission to use, copy, modify, and distribute this software and its | |||
| 28 | documentation for any purpose and without fee is hereby granted, | |||
| 29 | provided that the above copyright notice appear in all copies and that | |||
| 30 | both that copyright notice and this permission notice appear in | |||
| 31 | supporting documentation, and that the name of Digital not be | |||
| 32 | used in advertising or publicity pertaining to distribution of the | |||
| 33 | software without specific, written prior permission. | |||
| 34 | ||||
| 35 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING | |||
| 36 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL | |||
| 37 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR | |||
| 38 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |||
| 39 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | |||
| 40 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |||
| 41 | SOFTWARE. | |||
| 42 | ||||
| 43 | ******************************************************************/ | |||
| 44 | ||||
| 45 | /* | |||
| 46 | ||||
| 47 | Copyright 1987, 1988, 1994, 1998 The Open Group | |||
| 48 | ||||
| 49 | Permission to use, copy, modify, distribute, and sell this software and its | |||
| 50 | documentation for any purpose is hereby granted without fee, provided that | |||
| 51 | the above copyright notice appear in all copies and that both that | |||
| 52 | copyright notice and this permission notice appear in supporting | |||
| 53 | documentation. | |||
| 54 | ||||
| 55 | The above copyright notice and this permission notice shall be included in | |||
| 56 | all copies or substantial portions of the Software. | |||
| 57 | ||||
| 58 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||
| 59 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||
| 60 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |||
| 61 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN | |||
| 62 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |||
| 63 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |||
| 64 | ||||
| 65 | Except as contained in this notice, the name of The Open Group shall not be | |||
| 66 | used in advertising or otherwise to promote the sale, use or other dealings | |||
| 67 | in this Software without prior written authorization from The Open Group. | |||
| 68 | ||||
| 69 | */ | |||
| 70 | ||||
| 71 | #ifdef HAVE_CONFIG_H1 | |||
| 72 | #include <config.h> | |||
| 73 | #endif | |||
| 74 | #include "IntrinsicI.h" | |||
| 75 | #include "StringDefs.h" | |||
| 76 | #include "SelectionI.h" | |||
| 77 | #include <X11/Xatom.h> | |||
| 78 | #include <stdio.h> | |||
| 79 | ||||
| 80 | void _XtSetDefaultSelectionTimeout( | |||
| 81 | unsigned long *timeout) | |||
| 82 | { | |||
| 83 | *timeout = 5000; /* default to 5 seconds */ | |||
| 84 | } | |||
| 85 | ||||
| 86 | void XtSetSelectionTimeout( | |||
| 87 | unsigned long timeout) | |||
| 88 | { | |||
| 89 | XtAppSetSelectionTimeout(_XtDefaultAppContext(), timeout); | |||
| 90 | } | |||
| 91 | ||||
| 92 | void XtAppSetSelectionTimeout( | |||
| 93 | XtAppContext app, | |||
| 94 | unsigned long timeout) | |||
| 95 | { | |||
| 96 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); | |||
| 97 | app->selectionTimeout = timeout; | |||
| 98 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); | |||
| 99 | } | |||
| 100 | ||||
| 101 | unsigned long XtGetSelectionTimeout(void) | |||
| 102 | { | |||
| 103 | return XtAppGetSelectionTimeout(_XtDefaultAppContext()); | |||
| 104 | } | |||
| 105 | ||||
| 106 | unsigned long XtAppGetSelectionTimeout( | |||
| 107 | XtAppContext app) | |||
| 108 | { | |||
| 109 | unsigned long retval; | |||
| 110 | ||||
| 111 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); | |||
| 112 | retval = app->selectionTimeout; | |||
| 113 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); | |||
| 114 | return retval; | |||
| 115 | } | |||
| 116 | ||||
| 117 | ||||
| 118 | /* General utilities */ | |||
| 119 | ||||
| 120 | static void HandleSelectionReplies(Widget, XtPointer, XEvent *, Boolean *); | |||
| 121 | static void ReqTimedOut(XtPointer, XtIntervalId *); | |||
| 122 | static void HandlePropertyGone(Widget, XtPointer, XEvent *, Boolean *); | |||
| 123 | static void HandleGetIncrement(Widget, XtPointer, XEvent *, Boolean *); | |||
| 124 | static void HandleIncremental(Display *, Widget, Atom, CallBackInfo, unsigned long); | |||
| 125 | ||||
| 126 | static XContext selectPropertyContext = 0; | |||
| 127 | static XContext paramPropertyContext = 0; | |||
| 128 | static XContext multipleContext = 0; | |||
| 129 | ||||
| 130 | /* Multiple utilities */ | |||
| 131 | static void AddSelectionRequests(Widget, Atom, int, Atom *, XtSelectionCallbackProc *, int, XtPointer *, Boolean *, Atom *); | |||
| 132 | static Boolean IsGatheringRequest(Widget, Atom); | |||
| 133 | ||||
| 134 | #define PREALLOCED32 32 | |||
| 135 | ||||
| 136 | /* Parameter utilities */ | |||
| 137 | static void AddParamInfo(Widget, Atom, Atom); | |||
| 138 | static void RemoveParamInfo(Widget, Atom); | |||
| 139 | static Atom GetParamInfo(Widget, Atom); | |||
| 140 | ||||
| 141 | static int StorageSize[3] = {1, sizeof(short), sizeof(long)}; | |||
| 142 | #define BYTELENGTH(length, format)((length) * StorageSize[(format)>>4]) ((length) * StorageSize[(format)>>4]) | |||
| 143 | #define NUMELEM(bytelength, format)((bytelength) / StorageSize[(format)>>4]) ((bytelength) / StorageSize[(format)>>4]) | |||
| 144 | ||||
| 145 | /* Xlib and Xt are permitted to have different memory allocators, and in the | |||
| 146 | * XtSelectionCallbackProc the client is instructed to free the selection | |||
| 147 | * value with XtFree, so the selection value received from XGetWindowProperty | |||
| 148 | * should be copied to memory allocated through Xt. But copying is | |||
| 149 | * undesirable since the selection value may be large, and, under normal | |||
| 150 | * library configuration copying is unnecessary. | |||
| 151 | */ | |||
| 152 | #ifdef XTTRACEMEMORY | |||
| 153 | #define XT_COPY_SELECTION 1 | |||
| 154 | #endif | |||
| 155 | ||||
| 156 | /*ARGSUSED*/ | |||
| 157 | static void FreePropList( | |||
| 158 | Widget w, /* unused */ | |||
| 159 | XtPointer closure, | |||
| 160 | XtPointer callData) /* unused */ | |||
| 161 | { | |||
| 162 | PropList sarray = (PropList)closure; | |||
| 163 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 164 | XDeleteContext(sarray->dpy, DefaultRootWindow(sarray->dpy)((&((_XPrivDisplay)(sarray->dpy))->screens[(((_XPrivDisplay )(sarray->dpy))->default_screen)])->root), | |||
| 165 | selectPropertyContext); | |||
| 166 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 167 | XtFree((char*)sarray->list); | |||
| 168 | XtFree((char*)closure); | |||
| 169 | } | |||
| 170 | ||||
| 171 | ||||
| 172 | static PropList GetPropList( | |||
| 173 | Display *dpy) | |||
| 174 | { | |||
| 175 | PropList sarray; | |||
| 176 | Atom atoms[4]; | |||
| 177 | static char* names[] = { | |||
| 178 | "INCR", | |||
| 179 | "MULTIPLE", | |||
| 180 | "TIMESTAMP", | |||
| 181 | "_XT_SELECTION_0" }; | |||
| 182 | ||||
| 183 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 184 | if (selectPropertyContext == 0) | |||
| 185 | selectPropertyContext = XUniqueContext()((XContext) XrmUniqueQuark()); | |||
| 186 | if (XFindContext(dpy, DefaultRootWindow(dpy)((&((_XPrivDisplay)(dpy))->screens[(((_XPrivDisplay)(dpy ))->default_screen)])->root), selectPropertyContext, | |||
| 187 | (XPointer *)&sarray)) { | |||
| 188 | XtPerDisplay pd = _XtGetPerDisplay(dpy); | |||
| 189 | sarray = (PropList) __XtMalloc((unsigned) sizeof(PropListRec)); | |||
| 190 | sarray->dpy = dpy; | |||
| 191 | XInternAtoms(dpy, names, 4, FALSE0, atoms); | |||
| 192 | sarray->incr_atom = atoms[0]; | |||
| 193 | sarray->indirect_atom = atoms[1]; | |||
| 194 | sarray->timestamp_atom = atoms[2]; | |||
| 195 | sarray->propCount = 1; | |||
| 196 | sarray->list = | |||
| 197 | (SelectionProp)__XtMalloc((unsigned) sizeof(SelectionPropRec)); | |||
| 198 | sarray->list[0].prop = atoms[3]; | |||
| 199 | sarray->list[0].avail = TRUE1; | |||
| 200 | (void) XSaveContext(dpy, DefaultRootWindow(dpy)((&((_XPrivDisplay)(dpy))->screens[(((_XPrivDisplay)(dpy ))->default_screen)])->root), selectPropertyContext, | |||
| 201 | (char *) sarray); | |||
| 202 | _XtAddCallback( &pd->destroy_callbacks, | |||
| 203 | FreePropList, (XtPointer)sarray ); | |||
| 204 | } | |||
| 205 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 206 | return sarray; | |||
| 207 | } | |||
| 208 | ||||
| 209 | ||||
| 210 | static Atom GetSelectionProperty( | |||
| 211 | Display *dpy) | |||
| 212 | { | |||
| 213 | SelectionProp p; | |||
| 214 | int propCount; | |||
| 215 | char propname[80]; | |||
| 216 | PropList sarray = GetPropList(dpy); | |||
| 217 | ||||
| 218 | for (p = sarray->list, propCount=sarray->propCount; | |||
| 219 | propCount; | |||
| 220 | p++, propCount--) { | |||
| 221 | if (p->avail) { | |||
| 222 | p->avail = FALSE0; | |||
| 223 | return(p->prop); | |||
| 224 | } | |||
| 225 | } | |||
| 226 | propCount = sarray->propCount++; | |||
| 227 | sarray->list = (SelectionProp) XtRealloc((XtPointer)sarray->list, | |||
| 228 | (unsigned)(sarray->propCount*sizeof(SelectionPropRec))); | |||
| 229 | (void) snprintf(propname, sizeof(propname), "_XT_SELECTION_%d", propCount)__builtin___snprintf_chk (propname, sizeof(propname), 0, __builtin_object_size (propname, 2 > 1 ? 1 : 0), "_XT_SELECTION_%d", propCount); | |||
| 230 | sarray->list[propCount].prop = XInternAtom(dpy, propname, FALSE0); | |||
| 231 | sarray->list[propCount].avail = FALSE0; | |||
| 232 | return(sarray->list[propCount].prop); | |||
| 233 | } | |||
| 234 | ||||
| 235 | static void FreeSelectionProperty( | |||
| 236 | Display *dpy, | |||
| 237 | Atom prop) | |||
| 238 | { | |||
| 239 | SelectionProp p; | |||
| 240 | int propCount; | |||
| 241 | PropList sarray; | |||
| 242 | if (prop == None0L) return; | |||
| 243 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 244 | if (XFindContext(dpy, DefaultRootWindow(dpy)((&((_XPrivDisplay)(dpy))->screens[(((_XPrivDisplay)(dpy ))->default_screen)])->root), selectPropertyContext, | |||
| 245 | (XPointer *)&sarray)) | |||
| 246 | XtAppErrorMsg(XtDisplayToApplicationContext(dpy), | |||
| 247 | "noSelectionProperties", "freeSelectionProperty", XtCXtToolkitError, | |||
| 248 | "internal error: no selection property context for display", | |||
| 249 | (String *)NULL((void*)0), (Cardinal *)NULL((void*)0) ); | |||
| 250 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 251 | for (p = sarray->list, propCount=sarray->propCount; | |||
| 252 | propCount; | |||
| 253 | p++, propCount--) | |||
| 254 | if (p->prop == prop) { | |||
| 255 | p->avail = TRUE1; | |||
| 256 | return; | |||
| 257 | } | |||
| 258 | } | |||
| 259 | ||||
| 260 | static void FreeInfo( | |||
| 261 | CallBackInfo info) | |||
| 262 | { | |||
| 263 | XtFree((char*)info->incremental); | |||
| 264 | XtFree((char*)info->callbacks); | |||
| 265 | XtFree((char*)info->req_closure); | |||
| 266 | XtFree((char*)info->target); | |||
| 267 | XtFree((char*)info); | |||
| 268 | } | |||
| 269 | ||||
| 270 | static CallBackInfo MakeInfo( | |||
| 271 | Select ctx, | |||
| 272 | XtSelectionCallbackProc *callbacks, | |||
| 273 | XtPointer *closures, | |||
| 274 | int count, | |||
| 275 | Widget widget, | |||
| 276 | Time time, | |||
| 277 | Boolean *incremental, | |||
| 278 | Atom *properties) | |||
| 279 | { | |||
| 280 | CallBackInfo info = XtNew(CallBackInfoRec)((CallBackInfoRec *) XtMalloc((unsigned) sizeof(CallBackInfoRec ))); | |||
| 281 | ||||
| 282 | info->ctx = ctx; | |||
| 283 | info->callbacks = (XtSelectionCallbackProc *) | |||
| 284 | __XtMalloc((unsigned) (count * sizeof(XtSelectionCallbackProc))); | |||
| 285 | (void) memmove((char*)info->callbacks, (char*)callbacks,__builtin___memmove_chk ((char*)info->callbacks, (char*)callbacks , count * sizeof(XtSelectionCallbackProc), __builtin_object_size ((char*)info->callbacks, 0)) | |||
| 286 | count * sizeof(XtSelectionCallbackProc))__builtin___memmove_chk ((char*)info->callbacks, (char*)callbacks , count * sizeof(XtSelectionCallbackProc), __builtin_object_size ((char*)info->callbacks, 0)); | |||
| 287 | info->req_closure = | |||
| 288 | (XtPointer*)__XtMalloc((unsigned) (count * sizeof(XtPointer))); | |||
| 289 | (void) memmove((char*)info->req_closure, (char*)closures,__builtin___memmove_chk ((char*)info->req_closure, (char*) closures, count * sizeof(XtPointer), __builtin_object_size (( char*)info->req_closure, 0)) | |||
| 290 | count * sizeof(XtPointer))__builtin___memmove_chk ((char*)info->req_closure, (char*) closures, count * sizeof(XtPointer), __builtin_object_size (( char*)info->req_closure, 0)); | |||
| 291 | if (count == 1 && properties != NULL((void*)0) && properties[0] != None0L) | |||
| 292 | info->property = properties[0]; | |||
| 293 | else { | |||
| 294 | info->property = GetSelectionProperty(XtDisplay(widget)(((widget)->core.screen)->display)); | |||
| 295 | XDeleteProperty(XtDisplay(widget)(((widget)->core.screen)->display), XtWindow(widget)((widget)->core.window), | |||
| 296 | info->property); | |||
| 297 | } | |||
| 298 | info->proc = HandleSelectionReplies; | |||
| 299 | info->widget = widget; | |||
| 300 | info->time = time; | |||
| 301 | info->incremental = (Boolean*) __XtMalloc(count * sizeof(Boolean)); | |||
| 302 | (void) memmove((char*)info->incremental, (char*) incremental,__builtin___memmove_chk ((char*)info->incremental, (char*) incremental, count * sizeof(Boolean), __builtin_object_size ( (char*)info->incremental, 0)) | |||
| 303 | count * sizeof(Boolean))__builtin___memmove_chk ((char*)info->incremental, (char*) incremental, count * sizeof(Boolean), __builtin_object_size ( (char*)info->incremental, 0)); | |||
| 304 | info->current = 0; | |||
| 305 | info->value = NULL((void*)0); | |||
| 306 | return (info); | |||
| 307 | } | |||
| 308 | ||||
| 309 | static void RequestSelectionValue( | |||
| 310 | CallBackInfo info, | |||
| 311 | Atom selection, | |||
| 312 | Atom target) | |||
| 313 | { | |||
| 314 | #ifndef DEBUG_WO_TIMERS | |||
| 315 | XtAppContext app = XtWidgetToApplicationContext(info->widget); | |||
| 316 | info->timeout = XtAppAddTimeOut(app, | |||
| 317 | app->selectionTimeout, ReqTimedOut, (XtPointer)info); | |||
| 318 | #endif | |||
| 319 | XtAddEventHandler(info->widget, (EventMask)0, TRUE1, | |||
| 320 | HandleSelectionReplies, (XtPointer)info); | |||
| 321 | XConvertSelection(info->ctx->dpy, selection, target, | |||
| 322 | info->property, XtWindow(info->widget)((info->widget)->core.window), info->time); | |||
| 323 | } | |||
| 324 | ||||
| 325 | ||||
| 326 | static XContext selectContext = 0; | |||
| 327 | ||||
| 328 | static Select NewContext( | |||
| 329 | Display *dpy, | |||
| 330 | Atom selection) | |||
| 331 | { | |||
| 332 | /* assert(selectContext != 0) */ | |||
| 333 | Select ctx = XtNew(SelectRec)((SelectRec *) XtMalloc((unsigned) sizeof(SelectRec))); | |||
| 334 | ctx->dpy = dpy; | |||
| 335 | ctx->selection = selection; | |||
| 336 | ctx->widget = NULL((void*)0); | |||
| 337 | ctx->prop_list = GetPropList(dpy); | |||
| 338 | ctx->ref_count = 0; | |||
| 339 | ctx->free_when_done = FALSE0; | |||
| 340 | ctx->was_disowned = FALSE0; | |||
| 341 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 342 | (void)XSaveContext(dpy, (Window)selection, selectContext, (char *)ctx); | |||
| 343 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 344 | return ctx; | |||
| 345 | } | |||
| 346 | ||||
| 347 | static Select FindCtx( | |||
| 348 | Display *dpy, | |||
| 349 | Atom selection) | |||
| 350 | { | |||
| 351 | Select ctx; | |||
| 352 | ||||
| 353 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 354 | if (selectContext == 0) | |||
| 355 | selectContext = XUniqueContext()((XContext) XrmUniqueQuark()); | |||
| 356 | if (XFindContext(dpy, (Window)selection, selectContext, (XPointer *)&ctx)) | |||
| 357 | ctx = NewContext(dpy, selection); | |||
| 358 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 359 | return ctx; | |||
| 360 | } | |||
| 361 | ||||
| 362 | /*ARGSUSED*/ | |||
| 363 | static void WidgetDestroyed( | |||
| 364 | Widget widget, | |||
| 365 | XtPointer closure, XtPointer data) | |||
| 366 | { | |||
| 367 | Select ctx = (Select) closure; | |||
| 368 | if (ctx->widget == widget) { | |||
| 369 | if (ctx->free_when_done) | |||
| 370 | XtFree((char*)ctx); | |||
| 371 | else | |||
| 372 | ctx->widget = NULL((void*)0); | |||
| 373 | } | |||
| 374 | } | |||
| 375 | ||||
| 376 | /* Selection Owner code */ | |||
| 377 | ||||
| 378 | static void HandleSelectionEvents(Widget, XtPointer, XEvent *, Boolean *); | |||
| 379 | ||||
| 380 | static Boolean LoseSelection( | |||
| 381 | Select ctx, | |||
| 382 | Widget widget, | |||
| 383 | Atom selection, | |||
| 384 | Time time) | |||
| 385 | { | |||
| 386 | if ((ctx->widget == widget) && | |||
| 387 | (ctx->selection == selection) && /* paranoia */ | |||
| 388 | !ctx->was_disowned && | |||
| 389 | ((time == CurrentTime0L) || (time >= ctx->time))) | |||
| 390 | { | |||
| 391 | XtRemoveEventHandler(widget, (EventMask)0, TRUE1, | |||
| 392 | HandleSelectionEvents, (XtPointer)ctx); | |||
| 393 | XtRemoveCallback(widget, XtNdestroyCallback((char*)&XtStrings[169]), | |||
| 394 | WidgetDestroyed, (XtPointer)ctx); | |||
| 395 | ctx->was_disowned = TRUE1; /* widget officially loses ownership */ | |||
| 396 | /* now inform widget */ | |||
| 397 | if (ctx->loses) { | |||
| 398 | if (ctx->incremental) | |||
| 399 | (*(XtLoseSelectionIncrProc)ctx->loses) | |||
| 400 | (widget, &ctx->selection, ctx->owner_closure); | |||
| 401 | else (*ctx->loses)(widget, &ctx->selection); | |||
| 402 | } | |||
| 403 | return(TRUE1); | |||
| 404 | } | |||
| 405 | else return(FALSE0); | |||
| 406 | } | |||
| 407 | ||||
| 408 | static XContext selectWindowContext = 0; | |||
| 409 | ||||
| 410 | /* %%% Xlib.h should make this public! */ | |||
| 411 | typedef int (*xErrorHandler)(Display*, XErrorEvent*); | |||
| 412 | ||||
| 413 | static xErrorHandler oldErrorHandler = NULL((void*)0); | |||
| 414 | static unsigned long firstProtectRequest; | |||
| 415 | static Window errorWindow; | |||
| 416 | ||||
| 417 | static int LocalErrorHandler ( | |||
| 418 | Display *dpy, | |||
| 419 | XErrorEvent *error) | |||
| 420 | { | |||
| 421 | int retval; | |||
| 422 | ||||
| 423 | /* If BadWindow error on selection requestor, nothing to do but let | |||
| 424 | * the transfer timeout. Otherwise, invoke saved error handler. */ | |||
| 425 | ||||
| 426 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 427 | ||||
| 428 | if (error->error_code == BadWindow3 && error->resourceid == errorWindow && | |||
| 429 | error->serial >= firstProtectRequest) { | |||
| 430 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 431 | return 0; | |||
| 432 | } | |||
| 433 | ||||
| 434 | if (oldErrorHandler == NULL((void*)0)) { | |||
| 435 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 436 | return 0; /* should never happen */ | |||
| 437 | } | |||
| 438 | ||||
| 439 | retval = (*oldErrorHandler)(dpy, error); | |||
| 440 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 441 | return retval; | |||
| 442 | } | |||
| 443 | ||||
| 444 | static void StartProtectedSection( | |||
| 445 | Display *dpy, | |||
| 446 | Window window) | |||
| 447 | { | |||
| 448 | /* protect ourselves against request window being destroyed | |||
| 449 | * before completion of transfer */ | |||
| 450 | ||||
| 451 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 452 | oldErrorHandler = XSetErrorHandler(LocalErrorHandler); | |||
| 453 | firstProtectRequest = NextRequest(dpy)(((_XPrivDisplay)(dpy))->request + 1); | |||
| 454 | errorWindow = window; | |||
| 455 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 456 | } | |||
| 457 | ||||
| 458 | static void EndProtectedSection( | |||
| 459 | Display *dpy) | |||
| 460 | { | |||
| 461 | /* flush any generated errors on requestor and | |||
| 462 | * restore original error handler */ | |||
| 463 | ||||
| 464 | XSync(dpy, False0); | |||
| 465 | ||||
| 466 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 467 | XSetErrorHandler(oldErrorHandler); | |||
| 468 | oldErrorHandler = NULL((void*)0); | |||
| 469 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 470 | } | |||
| 471 | ||||
| 472 | static void AddHandler( | |||
| 473 | Request req, | |||
| 474 | EventMask mask, | |||
| 475 | XtEventHandler proc, | |||
| 476 | XtPointer closure) | |||
| 477 | { | |||
| 478 | Display *dpy = req->ctx->dpy; | |||
| 479 | Window window = req->requestor; | |||
| 480 | Widget widget = XtWindowToWidget(dpy, window); | |||
| 481 | ||||
| 482 | if (widget != NULL((void*)0)) req->widget = widget; | |||
| 483 | else widget = req->widget; | |||
| 484 | ||||
| 485 | if (XtWindow(widget)((widget)->core.window) == window) | |||
| 486 | XtAddEventHandler(widget, mask, False0, proc, closure); | |||
| 487 | else { | |||
| 488 | RequestWindowRec *requestWindowRec; | |||
| 489 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 490 | if (selectWindowContext == 0) | |||
| 491 | selectWindowContext = XUniqueContext()((XContext) XrmUniqueQuark()); | |||
| 492 | if (XFindContext(dpy, window, selectWindowContext, | |||
| 493 | (XPointer *)&requestWindowRec)) { | |||
| 494 | requestWindowRec = XtNew(RequestWindowRec)((RequestWindowRec *) XtMalloc((unsigned) sizeof(RequestWindowRec ))); | |||
| 495 | requestWindowRec->active_transfer_count = 0; | |||
| 496 | (void)XSaveContext(dpy, window, selectWindowContext, | |||
| 497 | (char *)requestWindowRec); | |||
| 498 | } | |||
| 499 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 500 | if (requestWindowRec->active_transfer_count++ == 0) { | |||
| 501 | XtRegisterDrawable(dpy, window, widget); | |||
| 502 | XSelectInput(dpy, window, mask); | |||
| 503 | } | |||
| 504 | XtAddRawEventHandler(widget, mask, FALSE0, proc, closure); | |||
| 505 | } | |||
| 506 | } | |||
| 507 | ||||
| 508 | static void RemoveHandler( | |||
| 509 | Request req, | |||
| 510 | EventMask mask, | |||
| 511 | XtEventHandler proc, | |||
| 512 | XtPointer closure) | |||
| 513 | { | |||
| 514 | Display *dpy = req->ctx->dpy; | |||
| 515 | Window window = req->requestor; | |||
| 516 | Widget widget = req->widget; | |||
| 517 | ||||
| 518 | if ((XtWindowToWidget(dpy, window) == widget) && | |||
| 519 | (XtWindow(widget)((widget)->core.window) != window)) { | |||
| 520 | /* we had to hang this window onto our widget; take it off */ | |||
| 521 | RequestWindowRec* requestWindowRec; | |||
| 522 | XtRemoveRawEventHandler(widget, mask, TRUE1, proc, closure); | |||
| 523 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 524 | (void)XFindContext(dpy, window, selectWindowContext, | |||
| 525 | (XPointer *)&requestWindowRec); | |||
| 526 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 527 | if (--requestWindowRec->active_transfer_count == 0) { | |||
| 528 | XtUnregisterDrawable(dpy, window); | |||
| 529 | StartProtectedSection(dpy, window); | |||
| 530 | XSelectInput(dpy, window, 0L); | |||
| 531 | EndProtectedSection(dpy); | |||
| 532 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 533 | (void)XDeleteContext(dpy, window, selectWindowContext); | |||
| 534 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 535 | XtFree((char*)requestWindowRec); | |||
| 536 | } | |||
| 537 | } else { | |||
| 538 | XtRemoveEventHandler(widget, mask, TRUE1, proc, closure); | |||
| 539 | } | |||
| 540 | } | |||
| 541 | ||||
| 542 | /* ARGSUSED */ | |||
| 543 | static void OwnerTimedOut( | |||
| 544 | XtPointer closure, | |||
| 545 | XtIntervalId *id) | |||
| 546 | { | |||
| 547 | Request req = (Request)closure; | |||
| 548 | Select ctx = req->ctx; | |||
| 549 | ||||
| 550 | if (ctx->incremental && (ctx->owner_cancel != NULL((void*)0))) { | |||
| 551 | (*ctx->owner_cancel)(ctx->widget, &ctx->selection, | |||
| 552 | &req->target, (XtRequestId*)&req, | |||
| 553 | ctx->owner_closure); | |||
| 554 | } else { | |||
| 555 | if (ctx->notify == NULL((void*)0)) | |||
| 556 | XtFree((char*)req->value); | |||
| 557 | else { | |||
| 558 | /* the requestor hasn't deleted the property, but | |||
| 559 | * the owner needs to free the value. | |||
| 560 | */ | |||
| 561 | if (ctx->incremental) | |||
| 562 | (*(XtSelectionDoneIncrProc)ctx->notify) | |||
| 563 | (ctx->widget, &ctx->selection, &req->target, | |||
| 564 | (XtRequestId*)&req, ctx->owner_closure); | |||
| 565 | else | |||
| 566 | (*ctx->notify)(ctx->widget, &ctx->selection, &req->target); | |||
| 567 | } | |||
| 568 | } | |||
| 569 | ||||
| 570 | RemoveHandler(req, (EventMask)PropertyChangeMask(1L<<22), | |||
| 571 | HandlePropertyGone, closure); | |||
| 572 | XtFree((char*)req); | |||
| 573 | if (--ctx->ref_count == 0 && ctx->free_when_done) | |||
| 574 | XtFree((char*)ctx); | |||
| 575 | } | |||
| 576 | ||||
| 577 | static void SendIncrement( | |||
| 578 | Request incr) | |||
| 579 | { | |||
| 580 | Display *dpy = incr->ctx->dpy; | |||
| 581 | ||||
| 582 | unsigned long incrSize = MAX_SELECTION_INCR(dpy)(((65536 < XMaxRequestSize(dpy)) ? (65536 << 2) : (XMaxRequestSize (dpy) << 2))-100); | |||
| 583 | if (incrSize > incr->bytelength - incr->offset) | |||
| 584 | incrSize = incr->bytelength - incr->offset; | |||
| 585 | StartProtectedSection(dpy, incr->requestor); | |||
| 586 | XChangeProperty(dpy, incr->requestor, incr->property, | |||
| 587 | incr->type, incr->format, PropModeReplace0, | |||
| 588 | (unsigned char *)incr->value + incr->offset, | |||
| 589 | NUMELEM((int)incrSize, incr->format)(((int)incrSize) / StorageSize[(incr->format)>>4])); | |||
| 590 | EndProtectedSection(dpy); | |||
| 591 | incr->offset += incrSize; | |||
| 592 | } | |||
| 593 | ||||
| 594 | static void AllSent( | |||
| 595 | Request req) | |||
| 596 | { | |||
| 597 | Select ctx = req->ctx; | |||
| 598 | StartProtectedSection(ctx->dpy, req->requestor); | |||
| 599 | XChangeProperty(ctx->dpy, req->requestor, | |||
| 600 | req->property, req->type, req->format, | |||
| 601 | PropModeReplace0, (unsigned char *) NULL((void*)0), 0); | |||
| 602 | EndProtectedSection(ctx->dpy); | |||
| 603 | req->allSent = TRUE1; | |||
| 604 | ||||
| 605 | if (ctx->notify == NULL((void*)0)) XtFree((char*)req->value); | |||
| 606 | } | |||
| 607 | ||||
| 608 | /*ARGSUSED*/ | |||
| 609 | static void HandlePropertyGone( | |||
| 610 | Widget widget, | |||
| 611 | XtPointer closure, | |||
| 612 | XEvent *ev, | |||
| 613 | Boolean *cont) | |||
| 614 | { | |||
| 615 | XPropertyEvent *event = (XPropertyEvent *) ev; | |||
| 616 | Request req = (Request)closure; | |||
| 617 | Select ctx = req->ctx; | |||
| 618 | ||||
| 619 | if ((event->type != PropertyNotify28) || | |||
| 620 | (event->state != PropertyDelete1) || | |||
| 621 | (event->atom != req->property) || | |||
| 622 | (event->window != req->requestor)) | |||
| 623 | return; | |||
| 624 | #ifndef DEBUG_WO_TIMERS | |||
| 625 | XtRemoveTimeOut(req->timeout); | |||
| 626 | #endif | |||
| 627 | if (req->allSent) { | |||
| 628 | if (ctx->notify) { | |||
| 629 | if (ctx->incremental) { | |||
| 630 | (*(XtSelectionDoneIncrProc)ctx->notify) | |||
| 631 | (ctx->widget, &ctx->selection, &req->target, | |||
| 632 | (XtRequestId*)&req, ctx->owner_closure); | |||
| 633 | } | |||
| 634 | else (*ctx->notify)(ctx->widget, &ctx->selection, &req->target); | |||
| 635 | } | |||
| 636 | RemoveHandler(req, (EventMask)PropertyChangeMask(1L<<22), | |||
| 637 | HandlePropertyGone, closure); | |||
| 638 | XtFree((char*)req); | |||
| 639 | if (--ctx->ref_count == 0 && ctx->free_when_done) | |||
| 640 | XtFree((char*)ctx); | |||
| 641 | } else { /* is this part of an incremental transfer? */ | |||
| 642 | if (ctx->incremental) { | |||
| 643 | if (req->bytelength == 0) | |||
| 644 | AllSent(req); | |||
| 645 | else { | |||
| 646 | unsigned long size = MAX_SELECTION_INCR(ctx->dpy)(((65536 < XMaxRequestSize(ctx->dpy)) ? (65536 << 2) : (XMaxRequestSize(ctx->dpy) << 2))-100); | |||
| 647 | SendIncrement(req); | |||
| 648 | (*(XtConvertSelectionIncrProc)ctx->convert) | |||
| 649 | (ctx->widget, &ctx->selection, &req->target, | |||
| 650 | &req->type, &req->value, | |||
| 651 | &req->bytelength, &req->format, | |||
| 652 | &size, ctx->owner_closure, (XtPointer*)&req); | |||
| 653 | if (req->bytelength) | |||
| 654 | req->bytelength = BYTELENGTH(req->bytelength, req->format)((req->bytelength) * StorageSize[(req->format)>>4 ]); | |||
| 655 | req->offset = 0; | |||
| 656 | } | |||
| 657 | } else { | |||
| 658 | if (req->offset < req->bytelength) | |||
| 659 | SendIncrement(req); | |||
| 660 | else AllSent(req); | |||
| 661 | } | |||
| 662 | #ifndef DEBUG_WO_TIMERS | |||
| 663 | { | |||
| 664 | XtAppContext app = XtWidgetToApplicationContext(req->widget); | |||
| 665 | req->timeout = XtAppAddTimeOut(app, | |||
| 666 | app->selectionTimeout, OwnerTimedOut, (XtPointer)req); | |||
| 667 | } | |||
| 668 | #endif | |||
| 669 | } | |||
| 670 | } | |||
| 671 | ||||
| 672 | static void PrepareIncremental( | |||
| 673 | Request req, | |||
| 674 | Widget widget, | |||
| 675 | Window window, | |||
| 676 | Atom property, | |||
| 677 | Atom target, | |||
| 678 | Atom targetType, | |||
| 679 | XtPointer value, | |||
| 680 | unsigned long length, | |||
| 681 | int format) | |||
| 682 | { | |||
| 683 | req->type = targetType; | |||
| 684 | req->value = value; | |||
| 685 | req->bytelength = BYTELENGTH(length,format)((length) * StorageSize[(format)>>4]); | |||
| 686 | req->format = format; | |||
| 687 | req->offset = 0; | |||
| 688 | req->target = target; | |||
| 689 | req->widget = widget; | |||
| 690 | req->allSent = FALSE0; | |||
| 691 | #ifndef DEBUG_WO_TIMERS | |||
| 692 | { | |||
| 693 | XtAppContext app = XtWidgetToApplicationContext(widget); | |||
| 694 | req->timeout = XtAppAddTimeOut(app, | |||
| 695 | app->selectionTimeout, OwnerTimedOut, (XtPointer)req); | |||
| 696 | } | |||
| 697 | #endif | |||
| 698 | AddHandler(req, (EventMask)PropertyChangeMask(1L<<22), | |||
| 699 | HandlePropertyGone, (XtPointer)req); | |||
| 700 | /* now send client INCR property */ | |||
| 701 | XChangeProperty(req->ctx->dpy, window, req->property, | |||
| 702 | req->ctx->prop_list->incr_atom, | |||
| 703 | 32, PropModeReplace0, | |||
| 704 | (unsigned char *)&req->bytelength, 1); | |||
| 705 | } | |||
| 706 | ||||
| 707 | static Boolean GetConversion( | |||
| 708 | Select ctx, /* logical owner */ | |||
| 709 | XSelectionRequestEvent* event, | |||
| 710 | Atom target, | |||
| 711 | Atom property, /* requestor's property */ | |||
| 712 | Widget widget) /* physical owner (receives events) */ | |||
| 713 | { | |||
| 714 | XtPointer value = NULL((void*)0); | |||
| 715 | unsigned long length; | |||
| 716 | int format; | |||
| 717 | Atom targetType; | |||
| 718 | Request req = XtNew(RequestRec)((RequestRec *) XtMalloc((unsigned) sizeof(RequestRec))); | |||
| 719 | Boolean timestamp_target = (target == ctx->prop_list->timestamp_atom); | |||
| 720 | ||||
| 721 | req->ctx = ctx; | |||
| 722 | req->event = *event; | |||
| 723 | req->property = property; | |||
| 724 | req->requestor = event->requestor; | |||
| 725 | ||||
| 726 | if (timestamp_target) { | |||
| 727 | value = __XtMalloc(sizeof(long)); | |||
| 728 | *(long*)value = ctx->time; | |||
| 729 | targetType = XA_INTEGER((Atom) 19); | |||
| 730 | length = 1; | |||
| 731 | format = 32; | |||
| 732 | } | |||
| 733 | else { | |||
| 734 | ctx->ref_count++; | |||
| 735 | if (ctx->incremental == TRUE1) { | |||
| 736 | unsigned long size = MAX_SELECTION_INCR(ctx->dpy)(((65536 < XMaxRequestSize(ctx->dpy)) ? (65536 << 2) : (XMaxRequestSize(ctx->dpy) << 2))-100); | |||
| 737 | if ((*(XtConvertSelectionIncrProc)ctx->convert) | |||
| 738 | (ctx->widget, &event->selection, &target, | |||
| 739 | &targetType, &value, &length, &format, | |||
| 740 | &size, ctx->owner_closure, (XtRequestId*)&req) | |||
| 741 | == FALSE0) { | |||
| 742 | XtFree((char*)req); | |||
| 743 | ctx->ref_count--; | |||
| 744 | return(FALSE0); | |||
| 745 | } | |||
| 746 | StartProtectedSection(ctx->dpy, event->requestor); | |||
| 747 | PrepareIncremental(req, widget, event->requestor, property, | |||
| 748 | target, targetType, value, length, format); | |||
| 749 | return(TRUE1); | |||
| 750 | } | |||
| 751 | ctx->req = req; | |||
| 752 | if ((*ctx->convert)(ctx->widget, &event->selection, &target, | |||
| 753 | &targetType, &value, &length, &format) == FALSE0) { | |||
| 754 | XtFree((char*)req); | |||
| 755 | ctx->req = NULL((void*)0); | |||
| 756 | ctx->ref_count--; | |||
| 757 | return(FALSE0); | |||
| 758 | } | |||
| 759 | ctx->req = NULL((void*)0); | |||
| 760 | } | |||
| 761 | StartProtectedSection(ctx->dpy, event->requestor); | |||
| 762 | if (BYTELENGTH(length,format)((length) * StorageSize[(format)>>4]) <= (unsigned long) MAX_SELECTION_INCR(ctx->dpy)(((65536 < XMaxRequestSize(ctx->dpy)) ? (65536 << 2) : (XMaxRequestSize(ctx->dpy) << 2))-100)) { | |||
| 763 | if (! timestamp_target) { | |||
| 764 | if (ctx->notify != NULL((void*)0)) { | |||
| 765 | req->target = target; | |||
| 766 | req->widget = widget; | |||
| 767 | req->allSent = TRUE1; | |||
| 768 | #ifndef DEBUG_WO_TIMERS | |||
| 769 | { | |||
| 770 | XtAppContext app = XtWidgetToApplicationContext(req->widget); | |||
| 771 | req->timeout = XtAppAddTimeOut(app, | |||
| 772 | app->selectionTimeout, OwnerTimedOut, (XtPointer)req); | |||
| 773 | } | |||
| 774 | #endif | |||
| 775 | AddHandler(req, (EventMask)PropertyChangeMask(1L<<22), | |||
| 776 | HandlePropertyGone, (XtPointer)req); | |||
| 777 | } | |||
| 778 | else ctx->ref_count--; | |||
| 779 | } | |||
| 780 | XChangeProperty(ctx->dpy, event->requestor, property, | |||
| 781 | targetType, format, PropModeReplace0, | |||
| 782 | (unsigned char *)value, (int)length); | |||
| 783 | /* free storage for client if no notify proc */ | |||
| 784 | if (timestamp_target || ctx->notify == NULL((void*)0)) { | |||
| 785 | XtFree((char*)value); | |||
| 786 | XtFree((char*)req); | |||
| 787 | } | |||
| 788 | } else { | |||
| 789 | PrepareIncremental(req, widget, event->requestor, property, | |||
| 790 | target, targetType, value, length, format); | |||
| 791 | } | |||
| 792 | return(TRUE1); | |||
| 793 | } | |||
| 794 | ||||
| 795 | /*ARGSUSED*/ | |||
| 796 | static void HandleSelectionEvents( | |||
| 797 | Widget widget, | |||
| 798 | XtPointer closure, | |||
| 799 | XEvent *event, | |||
| 800 | Boolean *cont) | |||
| 801 | { | |||
| 802 | Select ctx; | |||
| 803 | XSelectionEvent ev; | |||
| 804 | Atom target; | |||
| 805 | int count; | |||
| 806 | Boolean writeback = FALSE0; | |||
| 807 | ||||
| 808 | ctx = (Select) closure; | |||
| 809 | switch (event->type) { | |||
| 810 | case SelectionClear29: | |||
| 811 | /* if this event is not for the selection we registered for, | |||
| 812 | * don't do anything */ | |||
| 813 | if (ctx->selection != event->xselectionclear.selection || | |||
| 814 | ctx->serial > event->xselectionclear.serial) | |||
| 815 | break; | |||
| 816 | (void) LoseSelection(ctx, widget, event->xselectionclear.selection, | |||
| 817 | event->xselectionclear.time); | |||
| 818 | break; | |||
| 819 | case SelectionRequest30: | |||
| 820 | /* if this event is not for the selection we registered for, | |||
| 821 | * don't do anything */ | |||
| 822 | if (ctx->selection != event->xselectionrequest.selection) | |||
| 823 | break; | |||
| 824 | ev.type = SelectionNotify31; | |||
| 825 | ev.display = event->xselectionrequest.display; | |||
| 826 | ev.requestor = event->xselectionrequest.requestor; | |||
| 827 | ev.selection = event->xselectionrequest.selection; | |||
| 828 | ev.time = event->xselectionrequest.time; | |||
| 829 | ev.target = event->xselectionrequest.target; | |||
| 830 | if (event->xselectionrequest.property == None0L) /* obsolete requestor */ | |||
| 831 | event->xselectionrequest.property = event->xselectionrequest.target; | |||
| 832 | if (ctx->widget != widget || ctx->was_disowned | |||
| 833 | || ((event->xselectionrequest.time != CurrentTime0L) | |||
| 834 | && (event->xselectionrequest.time < ctx->time))) { | |||
| 835 | ev.property = None0L; | |||
| 836 | StartProtectedSection(ev.display, ev.requestor); | |||
| 837 | } else { | |||
| 838 | if (ev.target == ctx->prop_list->indirect_atom) { | |||
| 839 | IndirectPair *p; | |||
| 840 | int format; | |||
| 841 | unsigned long bytesafter, length; | |||
| 842 | unsigned char *value = NULL((void*)0); | |||
| 843 | ev.property = event->xselectionrequest.property; | |||
| 844 | StartProtectedSection(ev.display, ev.requestor); | |||
| 845 | if (XGetWindowProperty(ev.display, ev.requestor, | |||
| 846 | event->xselectionrequest.property, 0L, 1000000, | |||
| 847 | False0,(Atom)AnyPropertyType0L, &target, &format, &length, | |||
| 848 | &bytesafter, &value) == Success0) | |||
| 849 | count = BYTELENGTH(length, format)((length) * StorageSize[(format)>>4]) / sizeof(IndirectPair); | |||
| 850 | else | |||
| 851 | count = 0; | |||
| 852 | for (p = (IndirectPair *)value; count; p++, count--) { | |||
| 853 | EndProtectedSection(ctx->dpy); | |||
| 854 | if (!GetConversion(ctx, (XSelectionRequestEvent*)event, | |||
| 855 | p->target, p->property, widget)) { | |||
| 856 | ||||
| 857 | p->target = None0L; | |||
| 858 | writeback = TRUE1; | |||
| 859 | StartProtectedSection(ctx->dpy, ev.requestor); | |||
| 860 | } | |||
| 861 | } | |||
| 862 | if (writeback) | |||
| 863 | XChangeProperty(ev.display, ev.requestor, | |||
| 864 | event->xselectionrequest.property, target, | |||
| 865 | format, PropModeReplace0, value, (int)length); | |||
| 866 | XFree((char *)value); | |||
| 867 | } else /* not multiple */ { | |||
| 868 | if (GetConversion(ctx, (XSelectionRequestEvent*)event, | |||
| 869 | event->xselectionrequest.target, | |||
| 870 | event->xselectionrequest.property, | |||
| 871 | widget)) | |||
| 872 | ev.property = event->xselectionrequest.property; | |||
| 873 | else { | |||
| 874 | ev.property = None0L; | |||
| 875 | StartProtectedSection(ctx->dpy, ev.requestor); | |||
| 876 | } | |||
| 877 | } | |||
| 878 | } | |||
| 879 | (void) XSendEvent(ctx->dpy, ev.requestor, False0, (unsigned long)NULL((void*)0), | |||
| 880 | (XEvent *) &ev); | |||
| 881 | ||||
| 882 | EndProtectedSection(ctx->dpy); | |||
| 883 | ||||
| 884 | break; | |||
| 885 | } | |||
| 886 | } | |||
| 887 | ||||
| 888 | static Boolean OwnSelection( | |||
| 889 | Widget widget, | |||
| 890 | Atom selection, | |||
| 891 | Time time, | |||
| 892 | XtConvertSelectionProc convert, | |||
| 893 | XtLoseSelectionProc lose, | |||
| 894 | XtSelectionDoneProc notify, | |||
| 895 | XtCancelConvertSelectionProc cancel, | |||
| 896 | XtPointer closure, | |||
| 897 | Boolean incremental) | |||
| 898 | { | |||
| 899 | Select ctx; | |||
| 900 | Select oldctx = NULL((void*)0); | |||
| 901 | ||||
| 902 | if (!XtIsRealized(widget)((((((Object)(widget))->object.widget_class->core_class .class_inited & 0x04) ? (widget) : _XtWindowedAncestor(widget )) ->core.window) != 0L)) return False0; | |||
| 903 | ||||
| 904 | ctx = FindCtx(XtDisplay(widget)(((widget)->core.screen)->display), selection); | |||
| 905 | if (ctx->widget != widget || ctx->time != time || | |||
| 906 | ctx->ref_count || ctx->was_disowned) | |||
| 907 | { | |||
| 908 | Boolean replacement = FALSE0; | |||
| 909 | Window window = XtWindow(widget)((widget)->core.window); | |||
| 910 | unsigned long serial = XNextRequest(ctx->dpy); | |||
| 911 | XSetSelectionOwner(ctx->dpy, selection, window, time); | |||
| 912 | if (XGetSelectionOwner(ctx->dpy, selection) != window) | |||
| 913 | return FALSE0; | |||
| 914 | if (ctx->ref_count) { /* exchange is in-progress */ | |||
| 915 | #ifdef DEBUG_ACTIVE | |||
| 916 | printf( "Active exchange for widget \"%s\"; selection=0x%lx, ref_count=%d\n", | |||
| 917 | XtName(widget), (long)selection, ctx->ref_count ); | |||
| 918 | #endif | |||
| 919 | if (ctx->widget != widget || | |||
| 920 | ctx->convert != convert || | |||
| 921 | ctx->loses != lose || | |||
| 922 | ctx->notify != notify || | |||
| 923 | ctx->owner_cancel != cancel || | |||
| 924 | ctx->incremental != incremental || | |||
| 925 | ctx->owner_closure != closure) | |||
| 926 | { | |||
| 927 | if (ctx->widget == widget) { | |||
| 928 | XtRemoveEventHandler(widget, (EventMask)0, TRUE1, | |||
| 929 | HandleSelectionEvents, (XtPointer)ctx); | |||
| 930 | XtRemoveCallback(widget, XtNdestroyCallback((char*)&XtStrings[169]), | |||
| 931 | WidgetDestroyed, (XtPointer)ctx); | |||
| 932 | replacement = TRUE1; | |||
| 933 | } | |||
| 934 | else if (!ctx->was_disowned) { | |||
| 935 | oldctx = ctx; | |||
| 936 | } | |||
| 937 | ctx->free_when_done = TRUE1; | |||
| 938 | ctx = NewContext(XtDisplay(widget)(((widget)->core.screen)->display), selection); | |||
| 939 | } | |||
| 940 | else if (!ctx->was_disowned) { /* current owner is new owner */ | |||
| 941 | ctx->time = time; | |||
| 942 | return TRUE1; | |||
| 943 | } | |||
| 944 | } | |||
| 945 | if (ctx->widget != widget || ctx->was_disowned || replacement) { | |||
| 946 | if (ctx->widget && !ctx->was_disowned && !replacement) { | |||
| 947 | oldctx = ctx; | |||
| 948 | oldctx->free_when_done = TRUE1; | |||
| 949 | ctx = NewContext(XtDisplay(widget)(((widget)->core.screen)->display), selection); | |||
| 950 | } | |||
| 951 | XtAddEventHandler(widget, (EventMask)0, TRUE1, | |||
| 952 | HandleSelectionEvents, (XtPointer)ctx); | |||
| 953 | XtAddCallback(widget, XtNdestroyCallback((char*)&XtStrings[169]), | |||
| 954 | WidgetDestroyed, (XtPointer)ctx); | |||
| 955 | } | |||
| 956 | ctx->widget = widget; /* Selection offically changes hands. */ | |||
| 957 | ctx->time = time; | |||
| 958 | ctx->serial = serial; | |||
| 959 | } | |||
| 960 | ctx->convert = convert; | |||
| 961 | ctx->loses = lose; | |||
| 962 | ctx->notify = notify; | |||
| 963 | ctx->owner_cancel = cancel; | |||
| 964 | ctx->incremental = incremental; | |||
| 965 | ctx->owner_closure = closure; | |||
| 966 | ctx->was_disowned = FALSE0; | |||
| 967 | ||||
| 968 | /* Defer calling the previous selection owner's lose selection procedure | |||
| 969 | * until the new selection is established, to allow the previous | |||
| 970 | * selection owner to ask for the new selection to be converted in | |||
| 971 | * the lose selection procedure. The context pointer is the closure | |||
| 972 | * of the event handler and the destroy callback, so the old context | |||
| 973 | * pointer and the record contents must be preserved for LoseSelection. | |||
| 974 | */ | |||
| 975 | if (oldctx) { | |||
| 976 | (void) LoseSelection(oldctx, oldctx->widget, selection, oldctx->time); | |||
| 977 | if (!oldctx->ref_count && oldctx->free_when_done) | |||
| 978 | XtFree((char*)oldctx); | |||
| 979 | } | |||
| 980 | return TRUE1; | |||
| 981 | } | |||
| 982 | ||||
| 983 | ||||
| 984 | Boolean XtOwnSelection( | |||
| 985 | Widget widget, | |||
| 986 | Atom selection, | |||
| 987 | Time time, | |||
| 988 | XtConvertSelectionProc convert, | |||
| 989 | XtLoseSelectionProc lose, | |||
| 990 | XtSelectionDoneProc notify) | |||
| 991 | { | |||
| 992 | Boolean retval; | |||
| 993 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); | |||
| 994 | ||||
| 995 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); | |||
| 996 | retval = OwnSelection(widget, selection, time, convert, lose, notify, | |||
| 997 | (XtCancelConvertSelectionProc)NULL((void*)0), | |||
| 998 | (XtPointer)NULL((void*)0), FALSE0); | |||
| 999 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); | |||
| 1000 | return retval; | |||
| 1001 | } | |||
| 1002 | ||||
| 1003 | ||||
| 1004 | Boolean XtOwnSelectionIncremental( | |||
| 1005 | Widget widget, | |||
| 1006 | Atom selection, | |||
| 1007 | Time time, | |||
| 1008 | XtConvertSelectionIncrProc convert, | |||
| 1009 | XtLoseSelectionIncrProc lose, | |||
| 1010 | XtSelectionDoneIncrProc notify, | |||
| 1011 | XtCancelConvertSelectionProc cancel, | |||
| 1012 | XtPointer closure) | |||
| 1013 | { | |||
| 1014 | Boolean retval; | |||
| 1015 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); | |||
| 1016 | ||||
| 1017 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); | |||
| 1018 | retval = OwnSelection(widget, selection, time, | |||
| 1019 | (XtConvertSelectionProc)convert, | |||
| 1020 | (XtLoseSelectionProc)lose, | |||
| 1021 | (XtSelectionDoneProc)notify, | |||
| 1022 | cancel, closure, TRUE1); | |||
| 1023 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); | |||
| 1024 | return retval; | |||
| 1025 | } | |||
| 1026 | ||||
| 1027 | ||||
| 1028 | void XtDisownSelection( | |||
| 1029 | Widget widget, | |||
| 1030 | Atom selection, | |||
| 1031 | Time time) | |||
| 1032 | { | |||
| 1033 | Select ctx; | |||
| 1034 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); | |||
| 1035 | ||||
| 1036 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); | |||
| 1037 | ctx = FindCtx(XtDisplay(widget)(((widget)->core.screen)->display), selection); | |||
| 1038 | if (LoseSelection(ctx, widget, selection, time)) | |||
| 1039 | XSetSelectionOwner(XtDisplay(widget)(((widget)->core.screen)->display), selection, None0L, time); | |||
| 1040 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); | |||
| 1041 | } | |||
| 1042 | ||||
| 1043 | /* Selection Requestor code */ | |||
| 1044 | ||||
| 1045 | static Boolean IsINCRtype( | |||
| 1046 | CallBackInfo info, | |||
| 1047 | Window window, | |||
| 1048 | Atom prop) | |||
| 1049 | { | |||
| 1050 | unsigned long bytesafter; | |||
| 1051 | unsigned long length; | |||
| 1052 | int format; | |||
| 1053 | Atom type; | |||
| 1054 | unsigned char *value; | |||
| 1055 | ||||
| 1056 | if (prop == None0L) return False0; | |||
| 1057 | ||||
| 1058 | if (XGetWindowProperty(XtDisplay(info->widget)(((info->widget)->core.screen)->display), window, prop, 0L, 0L, | |||
| 1059 | False0, info->ctx->prop_list->incr_atom, &type, | |||
| 1060 | &format, &length, &bytesafter, &value) != Success0) | |||
| 1061 | return False0; | |||
| 1062 | ||||
| 1063 | return (type == info->ctx->prop_list->incr_atom); | |||
| 1064 | } | |||
| 1065 | ||||
| 1066 | /*ARGSUSED*/ | |||
| 1067 | static void ReqCleanup( | |||
| 1068 | Widget widget, | |||
| 1069 | XtPointer closure, | |||
| 1070 | XEvent *ev, | |||
| 1071 | Boolean *cont) | |||
| 1072 | { | |||
| 1073 | CallBackInfo info = (CallBackInfo)closure; | |||
| 1074 | unsigned long bytesafter, length; | |||
| 1075 | int format; | |||
| 1076 | Atom target; | |||
| 1077 | ||||
| 1078 | if (ev->type == SelectionNotify31) { | |||
| 1079 | XSelectionEvent *event = (XSelectionEvent *) ev; | |||
| 1080 | if (!MATCH_SELECT(event, info)((event->time == info->time) && (event->requestor == ((info->widget)->core.window)) && (event-> selection == info->ctx->selection) && (event-> target == *info->target))) return; /* not really for us */ | |||
| 1081 | XtRemoveEventHandler(widget, (EventMask)0, TRUE1, | |||
| 1082 | ReqCleanup, (XtPointer) info ); | |||
| 1083 | if (IsINCRtype(info, XtWindow(widget)((widget)->core.window), event->property)) { | |||
| 1084 | info->proc = HandleGetIncrement; | |||
| 1085 | XtAddEventHandler(info->widget, (EventMask) PropertyChangeMask(1L<<22), | |||
| 1086 | FALSE0, ReqCleanup, (XtPointer) info); | |||
| 1087 | } else { | |||
| 1088 | if (event->property != None0L) | |||
| 1089 | XDeleteProperty(event->display, XtWindow(widget)((widget)->core.window), | |||
| 1090 | event->property); | |||
| 1091 | FreeSelectionProperty(XtDisplay(widget)(((widget)->core.screen)->display), info->property); | |||
| 1092 | FreeInfo(info); | |||
| 1093 | } | |||
| 1094 | } else if ((ev->type == PropertyNotify28) && | |||
| 1095 | (ev->xproperty.state == PropertyNewValue0) && | |||
| 1096 | (ev->xproperty.atom == info->property)) { | |||
| 1097 | XPropertyEvent *event = (XPropertyEvent *) ev; | |||
| 1098 | char *value = NULL((void*)0); | |||
| 1099 | if (XGetWindowProperty(event->display, XtWindow(widget)((widget)->core.window), | |||
| 1100 | event->atom, 0L, 1000000, True1, AnyPropertyType0L, | |||
| 1101 | &target, &format, &length, &bytesafter, | |||
| 1102 | (unsigned char **) &value) == Success0) { | |||
| 1103 | XFree(value); | |||
| 1104 | if (length == 0) { | |||
| 1105 | XtRemoveEventHandler(widget, (EventMask) PropertyChangeMask(1L<<22), | |||
| 1106 | FALSE0, ReqCleanup, (XtPointer) info ); | |||
| 1107 | FreeSelectionProperty(XtDisplay(widget)(((widget)->core.screen)->display), info->property); | |||
| 1108 | XtFree(info->value); /* requestor never got this, so free now */ | |||
| 1109 | FreeInfo(info); | |||
| 1110 | } | |||
| 1111 | } | |||
| 1112 | } | |||
| 1113 | } | |||
| 1114 | ||||
| 1115 | /* ARGSUSED */ | |||
| 1116 | static void ReqTimedOut( | |||
| 1117 | XtPointer closure, | |||
| 1118 | XtIntervalId *id) | |||
| 1119 | { | |||
| 1120 | XtPointer value = NULL((void*)0); | |||
| 1121 | unsigned long length = 0; | |||
| 1122 | int format = 8; | |||
| 1123 | Atom resulttype = XT_CONVERT_FAIL(Atom)0x80000001; | |||
| 1124 | CallBackInfo info = (CallBackInfo)closure; | |||
| 1125 | unsigned long bytesafter; | |||
| 1126 | unsigned long proplength; | |||
| 1127 | Atom type; | |||
| 1128 | XtPointer *c; | |||
| 1129 | int i; | |||
| 1130 | ||||
| 1131 | if (*info->target == info->ctx->prop_list->indirect_atom) { | |||
| 1132 | IndirectPair *pairs = NULL((void*)0); | |||
| 1133 | if (XGetWindowProperty(XtDisplay(info->widget)(((info->widget)->core.screen)->display), XtWindow(info->widget)((info->widget)->core.window), | |||
| 1134 | info->property, 0L, 10000000, True1, | |||
| 1135 | AnyPropertyType0L, &type, &format, &proplength, | |||
| 1136 | &bytesafter, (unsigned char **) &pairs) | |||
| 1137 | == Success0) { | |||
| 1138 | XFree(pairs); | |||
| 1139 | for (proplength = proplength / IndirectPairWordSize2, i = 0, | |||
| 1140 | c = info->req_closure; | |||
| 1141 | proplength; proplength--, c++, i++) | |||
| 1142 | (*info->callbacks[i])(info->widget, *c, &info->ctx->selection, | |||
| 1143 | &resulttype, value, &length, &format); | |||
| 1144 | } | |||
| 1145 | } else { | |||
| 1146 | (*info->callbacks[0])(info->widget, *info->req_closure, | |||
| 1147 | &info->ctx->selection, &resulttype, value, &length, &format); | |||
| 1148 | } | |||
| 1149 | ||||
| 1150 | /* change event handlers for straggler events */ | |||
| 1151 | if (info->proc == (XtEventHandler)HandleSelectionReplies) { | |||
| 1152 | XtRemoveEventHandler(info->widget, (EventMask)0, | |||
| 1153 | TRUE1, info->proc, (XtPointer) info); | |||
| 1154 | XtAddEventHandler(info->widget, (EventMask)0, TRUE1, | |||
| 1155 | ReqCleanup, (XtPointer) info); | |||
| 1156 | } else { | |||
| 1157 | XtRemoveEventHandler(info->widget,(EventMask) PropertyChangeMask(1L<<22), | |||
| 1158 | FALSE0, info->proc, (XtPointer) info); | |||
| 1159 | XtAddEventHandler(info->widget, (EventMask) PropertyChangeMask(1L<<22), | |||
| 1160 | FALSE0, ReqCleanup, (XtPointer) info); | |||
| 1161 | } | |||
| 1162 | ||||
| 1163 | } | |||
| 1164 | ||||
| 1165 | /*ARGSUSED*/ | |||
| 1166 | static void HandleGetIncrement( | |||
| 1167 | Widget widget, | |||
| 1168 | XtPointer closure, | |||
| 1169 | XEvent *ev, | |||
| 1170 | Boolean *cont) | |||
| 1171 | { | |||
| 1172 | XPropertyEvent *event = (XPropertyEvent *) ev; | |||
| 1173 | CallBackInfo info = (CallBackInfo) closure; | |||
| 1174 | Select ctx = info->ctx; | |||
| 1175 | char *value; | |||
| 1176 | unsigned long bytesafter; | |||
| 1177 | unsigned long length; | |||
| 1178 | int bad; | |||
| 1179 | int n = info->current; | |||
| 1180 | ||||
| 1181 | if ((event->state != PropertyNewValue0) || (event->atom != info->property)) | |||
| 1182 | return; | |||
| 1183 | ||||
| 1184 | bad = XGetWindowProperty(event->display, XtWindow(widget)((widget)->core.window), | |||
| 1185 | event->atom, 0L, | |||
| 1186 | 10000000, True1, AnyPropertyType0L, &info->type, | |||
| 1187 | &info->format, &length, &bytesafter, | |||
| 1188 | (unsigned char **) &value); | |||
| 1189 | if (bad) | |||
| 1190 | return; | |||
| 1191 | #ifndef DEBUG_WO_TIMERS | |||
| 1192 | XtRemoveTimeOut(info->timeout); | |||
| 1193 | #endif | |||
| 1194 | if (length == 0) { | |||
| 1195 | unsigned long u_offset = NUMELEM(info->offset, info->format)((info->offset) / StorageSize[(info->format)>>4]); | |||
| 1196 | (*info->callbacks[n])(widget, *info->req_closure, &ctx->selection, | |||
| 1197 | &info->type, | |||
| 1198 | (info->offset == 0 ? value : info->value), | |||
| 1199 | &u_offset, &info->format); | |||
| 1200 | /* assert ((info->offset != 0) == (info->incremental[n]) */ | |||
| 1201 | if (info->offset != 0) XFree(value); | |||
| 1202 | XtRemoveEventHandler(widget, (EventMask) PropertyChangeMask(1L<<22), FALSE0, | |||
| 1203 | HandleGetIncrement, (XtPointer) info); | |||
| 1204 | FreeSelectionProperty(event->display, info->property); | |||
| 1205 | FreeInfo(info); | |||
| 1206 | } else { /* add increment to collection */ | |||
| 1207 | if (info->incremental[n]) { | |||
| 1208 | #ifdef XT_COPY_SELECTION | |||
| 1209 | int size = BYTELENGTH(length, info->format)((length) * StorageSize[(info->format)>>4]) + 1; | |||
| 1210 | char *tmp = __XtMalloc((Cardinal) size); | |||
| 1211 | (void) memmove(tmp, value, size)__builtin___memmove_chk (tmp, value, size, __builtin_object_size (tmp, 0)); | |||
| 1212 | XFree(value); | |||
| 1213 | value = tmp; | |||
| 1214 | #endif | |||
| 1215 | (*info->callbacks[n])(widget, *info->req_closure, &ctx->selection, | |||
| 1216 | &info->type, value, &length, &info->format); | |||
| 1217 | } else { | |||
| 1218 | int size = BYTELENGTH(length, info->format)((length) * StorageSize[(info->format)>>4]); | |||
| 1219 | if (info->offset + size > info->bytelength) { | |||
| 1220 | /* allocate enough for this and the next increment */ | |||
| 1221 | info->bytelength = info->offset + size * 2; | |||
| 1222 | info->value = XtRealloc(info->value, | |||
| 1223 | (Cardinal) info->bytelength); | |||
| 1224 | } | |||
| 1225 | (void) memmove(&info->value[info->offset], value, size)__builtin___memmove_chk (&info->value[info->offset] , value, size, __builtin_object_size (&info->value[info ->offset], 0)); | |||
| 1226 | info->offset += size; | |||
| 1227 | XFree(value); | |||
| 1228 | } | |||
| 1229 | /* reset timer */ | |||
| 1230 | #ifndef DEBUG_WO_TIMERS | |||
| 1231 | { | |||
| 1232 | XtAppContext app = XtWidgetToApplicationContext(info->widget); | |||
| 1233 | info->timeout = XtAppAddTimeOut(app, | |||
| 1234 | app->selectionTimeout, ReqTimedOut, (XtPointer) info); | |||
| 1235 | } | |||
| 1236 | #endif | |||
| 1237 | } | |||
| 1238 | } | |||
| 1239 | ||||
| 1240 | ||||
| 1241 | static void HandleNone( | |||
| 1242 | Widget widget, | |||
| 1243 | XtSelectionCallbackProc callback, | |||
| 1244 | XtPointer closure, | |||
| 1245 | Atom selection) | |||
| 1246 | { | |||
| 1247 | unsigned long length = 0; | |||
| 1248 | int format = 8; | |||
| 1249 | Atom type = None0L; | |||
| 1250 | ||||
| 1251 | (*callback)(widget, closure, &selection, | |||
| 1252 | &type, NULL((void*)0), &length, &format); | |||
| 1253 | } | |||
| 1254 | ||||
| 1255 | ||||
| 1256 | static long IncrPropSize( | |||
| 1257 | Widget widget, | |||
| 1258 | unsigned char* value, | |||
| 1259 | int format, | |||
| 1260 | unsigned long length) | |||
| 1261 | { | |||
| 1262 | unsigned long size; | |||
| 1263 | if (format == 32) { | |||
| 1264 | size = ((long*)value)[length-1]; /* %%% what order for longs? */ | |||
| 1265 | return size; | |||
| 1266 | } | |||
| 1267 | else { | |||
| 1268 | XtAppWarningMsg( XtWidgetToApplicationContext(widget), | |||
| 1269 | "badFormat","xtGetSelectionValue",XtCXtToolkitError, | |||
| 1270 | "Selection owner returned type INCR property with format != 32", | |||
| 1271 | (String*)NULL((void*)0), (Cardinal*)NULL((void*)0) ); | |||
| 1272 | return 0; | |||
| 1273 | } | |||
| 1274 | } | |||
| 1275 | ||||
| 1276 | ||||
| 1277 | static | |||
| 1278 | Boolean HandleNormal( | |||
| 1279 | Display *dpy, | |||
| 1280 | Widget widget, | |||
| 1281 | Atom property, | |||
| 1282 | CallBackInfo info, | |||
| 1283 | XtPointer closure, | |||
| 1284 | Atom selection) | |||
| 1285 | { | |||
| 1286 | unsigned long bytesafter; | |||
| 1287 | unsigned long length; | |||
| 1288 | int format; | |||
| 1289 | Atom type; | |||
| 1290 | unsigned char *value = NULL((void*)0); | |||
| 1291 | int number = info->current; | |||
| 1292 | ||||
| 1293 | if (XGetWindowProperty(dpy, XtWindow(widget)((widget)->core.window), property, 0L, 10000000, | |||
| 1294 | False0, AnyPropertyType0L, &type, &format, &length, | |||
| 1295 | &bytesafter, &value) != Success0) | |||
| 1296 | return FALSE0; | |||
| 1297 | ||||
| 1298 | if (type == info->ctx->prop_list->incr_atom) { | |||
| 1299 | unsigned long size = IncrPropSize(widget, value, format, length); | |||
| 1300 | XFree((char *)value); | |||
| 1301 | if (info->property != property) { | |||
| 1302 | /* within MULTIPLE */ | |||
| 1303 | CallBackInfo ninfo; | |||
| 1304 | ninfo = MakeInfo(info->ctx, &info->callbacks[number], | |||
| 1305 | &info->req_closure[number], 1, widget, | |||
| 1306 | info->time, &info->incremental[number], &property); | |||
| 1307 | ninfo->target = (Atom *) __XtMalloc((unsigned) sizeof(Atom)); | |||
| 1308 | *ninfo->target = info->target[number + 1]; | |||
| 1309 | info = ninfo; | |||
| 1310 | } | |||
| 1311 | HandleIncremental(dpy, widget, property, info, size); | |||
| 1312 | return FALSE0; | |||
| 1313 | } | |||
| 1314 | ||||
| 1315 | XDeleteProperty(dpy, XtWindow(widget)((widget)->core.window), property); | |||
| 1316 | #ifdef XT_COPY_SELECTION | |||
| 1317 | if (value) { /* it could have been deleted after the SelectionNotify */ | |||
| 1318 | int size = BYTELENGTH(length, info->format)((length) * StorageSize[(info->format)>>4]) + 1; | |||
| 1319 | char *tmp = __XtMalloc((Cardinal) size); | |||
| 1320 | (void) memmove(tmp, value, size)__builtin___memmove_chk (tmp, value, size, __builtin_object_size (tmp, 0)); | |||
| 1321 | XFree(value); | |||
| 1322 | value = (unsigned char *) tmp; | |||
| 1323 | } | |||
| 1324 | #endif | |||
| 1325 | (*info->callbacks[number])(widget, closure, &selection, | |||
| 1326 | &type, (XtPointer)value, &length, &format); | |||
| 1327 | ||||
| 1328 | if (info->incremental[number]) { | |||
| 1329 | /* let requestor know the whole thing has been received */ | |||
| 1330 | value = (unsigned char*)__XtMalloc((unsigned)1); | |||
| 1331 | length = 0; | |||
| 1332 | (*info->callbacks[number])(widget, closure, &selection, | |||
| 1333 | &type, (XtPointer)value, &length, &format); | |||
| 1334 | } | |||
| 1335 | return TRUE1; | |||
| 1336 | } | |||
| 1337 | ||||
| 1338 | static void HandleIncremental( | |||
| 1339 | Display *dpy, | |||
| 1340 | Widget widget, | |||
| 1341 | Atom property, | |||
| 1342 | CallBackInfo info, | |||
| 1343 | unsigned long size) | |||
| 1344 | { | |||
| 1345 | XtAddEventHandler(widget, (EventMask) PropertyChangeMask(1L<<22), FALSE0, | |||
| 1346 | HandleGetIncrement, (XtPointer) info); | |||
| 1347 | ||||
| 1348 | /* now start the transfer */ | |||
| 1349 | XDeleteProperty(dpy, XtWindow(widget)((widget)->core.window), property); | |||
| 1350 | XFlush(dpy); | |||
| 1351 | ||||
| 1352 | info->bytelength = size; | |||
| 1353 | if (info->incremental[info->current]) /* requestor wants incremental too */ | |||
| 1354 | info->value = NULL((void*)0); /* so no need for buffer to assemble value */ | |||
| 1355 | else | |||
| 1356 | info->value = (char *) __XtMalloc((unsigned) info->bytelength); | |||
| 1357 | info->offset = 0; | |||
| 1358 | ||||
| 1359 | /* reset the timer */ | |||
| 1360 | info->proc = HandleGetIncrement; | |||
| 1361 | #ifndef DEBUG_WO_TIMERS | |||
| 1362 | { | |||
| 1363 | XtAppContext app = XtWidgetToApplicationContext(info->widget); | |||
| 1364 | info->timeout = XtAppAddTimeOut(app, | |||
| 1365 | app->selectionTimeout, ReqTimedOut, (XtPointer) info); | |||
| 1366 | } | |||
| 1367 | #endif | |||
| 1368 | } | |||
| 1369 | ||||
| 1370 | /*ARGSUSED*/ | |||
| 1371 | static void HandleSelectionReplies( | |||
| 1372 | Widget widget, | |||
| 1373 | XtPointer closure, | |||
| 1374 | XEvent *ev, | |||
| 1375 | Boolean *cont) | |||
| 1376 | { | |||
| 1377 | XSelectionEvent *event = (XSelectionEvent *) ev; | |||
| 1378 | Display *dpy = event->display; | |||
| 1379 | CallBackInfo info = (CallBackInfo) closure; | |||
| 1380 | Select ctx = info->ctx; | |||
| 1381 | unsigned long bytesafter; | |||
| 1382 | unsigned long length; | |||
| 1383 | int format; | |||
| 1384 | Atom type; | |||
| 1385 | XtPointer *c; | |||
| 1386 | ||||
| 1387 | if (event->type != SelectionNotify31) return; | |||
| 1388 | if (!MATCH_SELECT(event, info)((event->time == info->time) && (event->requestor == ((info->widget)->core.window)) && (event-> selection == info->ctx->selection) && (event-> target == *info->target))) return; /* not really for us */ | |||
| 1389 | #ifndef DEBUG_WO_TIMERS | |||
| 1390 | XtRemoveTimeOut(info->timeout); | |||
| 1391 | #endif | |||
| 1392 | XtRemoveEventHandler(widget, (EventMask)0, TRUE1, | |||
| 1393 | HandleSelectionReplies, (XtPointer) info ); | |||
| 1394 | if (event->target == ctx->prop_list->indirect_atom) { | |||
| 1395 | IndirectPair *pairs = NULL((void*)0), *p; | |||
| 1396 | if (XGetWindowProperty(dpy, XtWindow(widget)((widget)->core.window), info->property, 0L, | |||
| 1397 | 10000000, True1, AnyPropertyType0L, &type, &format, | |||
| 1398 | &length, &bytesafter, (unsigned char **) &pairs) | |||
| 1399 | != Success0) | |||
| 1400 | length = 0; | |||
| 1401 | for (length = length / IndirectPairWordSize2, p = pairs, | |||
| 1402 | c = info->req_closure; | |||
| 1403 | length; length--, p++, c++, info->current++) { | |||
| 1404 | if (event->property == None0L || format != 32 || p->target == None0L | |||
| 1405 | || /* bug compatibility */ p->property == None0L) { | |||
| 1406 | HandleNone(widget, info->callbacks[info->current], | |||
| 1407 | *c, event->selection); | |||
| 1408 | if (p->property != None0L) | |||
| 1409 | FreeSelectionProperty(XtDisplay(widget)(((widget)->core.screen)->display), p->property); | |||
| 1410 | } else { | |||
| 1411 | if (HandleNormal(dpy, widget, p->property, info, *c, | |||
| 1412 | event->selection)) { | |||
| 1413 | FreeSelectionProperty(XtDisplay(widget)(((widget)->core.screen)->display), p->property); | |||
| 1414 | } | |||
| 1415 | } | |||
| 1416 | } | |||
| 1417 | XFree((char*)pairs); | |||
| 1418 | FreeSelectionProperty(dpy, info->property); | |||
| 1419 | FreeInfo(info); | |||
| 1420 | } else if (event->property == None0L) { | |||
| 1421 | HandleNone(widget, info->callbacks[0], *info->req_closure, event->selection); | |||
| 1422 | FreeSelectionProperty(XtDisplay(widget)(((widget)->core.screen)->display), info->property); | |||
| 1423 | FreeInfo(info); | |||
| 1424 | } else { | |||
| 1425 | if (HandleNormal(dpy, widget, event->property, info, | |||
| 1426 | *info->req_closure, event->selection)) { | |||
| 1427 | FreeSelectionProperty(XtDisplay(widget)(((widget)->core.screen)->display), info->property); | |||
| 1428 | FreeInfo(info); | |||
| 1429 | } | |||
| 1430 | } | |||
| 1431 | } | |||
| 1432 | ||||
| 1433 | static void DoLocalTransfer( | |||
| 1434 | Request req, | |||
| 1435 | Atom selection, | |||
| 1436 | Atom target, | |||
| 1437 | Widget widget, /* The widget requesting the value. */ | |||
| 1438 | XtSelectionCallbackProc callback, | |||
| 1439 | XtPointer closure, /* the closure for the callback, not the conversion */ | |||
| 1440 | Boolean incremental, | |||
| 1441 | Atom property) | |||
| 1442 | { | |||
| 1443 | Select ctx = req->ctx; | |||
| 1444 | XtPointer value = NULL((void*)0), temp, total = NULL((void*)0); | |||
| 1445 | unsigned long length; | |||
| 1446 | int format; | |||
| 1447 | Atom resulttype; | |||
| 1448 | unsigned long totallength = 0; | |||
| 1449 | ||||
| 1450 | req->event.type = 0; | |||
| 1451 | req->event.target = target; | |||
| 1452 | req->event.property = req->property = property; | |||
| 1453 | req->event.requestor = req->requestor = XtWindow(widget)((widget)->core.window); | |||
| 1454 | ||||
| 1455 | if (ctx->incremental) { | |||
| 1456 | unsigned long size = MAX_SELECTION_INCR(ctx->dpy)(((65536 < XMaxRequestSize(ctx->dpy)) ? (65536 << 2) : (XMaxRequestSize(ctx->dpy) << 2))-100); | |||
| 1457 | if (!(*(XtConvertSelectionIncrProc)ctx->convert) | |||
| 1458 | (ctx->widget, &selection, &target, | |||
| 1459 | &resulttype, &value, &length, &format, | |||
| 1460 | &size, ctx->owner_closure, (XtRequestId*)&req)) { | |||
| 1461 | HandleNone(widget, callback, closure, selection); | |||
| 1462 | } | |||
| 1463 | else { | |||
| 1464 | if (incremental) { | |||
| 1465 | Boolean allSent = FALSE0; | |||
| 1466 | while (!allSent) { | |||
| 1467 | if (ctx->notify && (value != NULL((void*)0))) { | |||
| 1468 | int bytelength = BYTELENGTH(length,format)((length) * StorageSize[(format)>>4]); | |||
| 1469 | /* both sides think they own this storage */ | |||
| 1470 | temp = __XtMalloc((unsigned)bytelength); | |||
| 1471 | (void) memmove(temp, value, bytelength)__builtin___memmove_chk (temp, value, bytelength, __builtin_object_size (temp, 0)); | |||
| 1472 | value = temp; | |||
| 1473 | } | |||
| 1474 | /* use care; older clients were never warned that | |||
| 1475 | * they must return a value even if length==0 | |||
| 1476 | */ | |||
| 1477 | if (value == NULL((void*)0)) value = __XtMalloc((unsigned)1); | |||
| 1478 | (*callback)(widget, closure, &selection, | |||
| 1479 | &resulttype, value, &length, &format); | |||
| 1480 | if (length) { | |||
| 1481 | /* should owner be notified on end-of-piece? | |||
| 1482 | * Spec is unclear, but non-local transfers don't. | |||
| 1483 | */ | |||
| 1484 | (*(XtConvertSelectionIncrProc)ctx->convert) | |||
| 1485 | (ctx->widget, &selection, &target, | |||
| 1486 | &resulttype, &value, &length, &format, | |||
| 1487 | &size, ctx->owner_closure, | |||
| 1488 | (XtRequestId*)&req); | |||
| 1489 | } | |||
| 1490 | else allSent = TRUE1; | |||
| 1491 | } | |||
| 1492 | } else { | |||
| 1493 | while (length) { | |||
| 1494 | int bytelength = BYTELENGTH(length, format)((length) * StorageSize[(format)>>4]); | |||
| 1495 | total = XtRealloc(total, | |||
| 1496 | (unsigned) (totallength += bytelength)); | |||
| 1497 | (void) memmove((char*)total + totallength - bytelength,__builtin___memmove_chk ((char*)total + totallength - bytelength , value, bytelength, __builtin_object_size ((char*)total + totallength - bytelength, 0)) | |||
| 1498 | value,__builtin___memmove_chk ((char*)total + totallength - bytelength , value, bytelength, __builtin_object_size ((char*)total + totallength - bytelength, 0)) | |||
| 1499 | bytelength)__builtin___memmove_chk ((char*)total + totallength - bytelength , value, bytelength, __builtin_object_size ((char*)total + totallength - bytelength, 0)); | |||
| 1500 | (*(XtConvertSelectionIncrProc)ctx->convert) | |||
| 1501 | (ctx->widget, &selection, &target, | |||
| 1502 | &resulttype, &value, &length, &format, | |||
| 1503 | &size, ctx->owner_closure, (XtRequestId*)&req); | |||
| 1504 | } | |||
| 1505 | if (total == NULL((void*)0)) total = __XtMalloc(1); | |||
| 1506 | totallength = NUMELEM(totallength, format)((totallength) / StorageSize[(format)>>4]); | |||
| 1507 | (*callback)(widget, closure, &selection, &resulttype, | |||
| 1508 | total, &totallength, &format); | |||
| 1509 | } | |||
| 1510 | if (ctx->notify) | |||
| 1511 | (*(XtSelectionDoneIncrProc)ctx->notify) | |||
| 1512 | (ctx->widget, &selection, &target, | |||
| 1513 | (XtRequestId*)&req, ctx->owner_closure); | |||
| 1514 | else XtFree((char*)value); | |||
| 1515 | } | |||
| 1516 | } else { /* not incremental owner */ | |||
| 1517 | if (!(*ctx->convert)(ctx->widget, &selection, &target, | |||
| 1518 | &resulttype, &value, &length, &format)) { | |||
| 1519 | HandleNone(widget, callback, closure, selection); | |||
| 1520 | } else { | |||
| 1521 | if (ctx->notify && (value != NULL((void*)0))) { | |||
| 1522 | int bytelength = BYTELENGTH(length,format)((length) * StorageSize[(format)>>4]); | |||
| 1523 | /* both sides think they own this storage; better copy */ | |||
| 1524 | temp = __XtMalloc((unsigned)bytelength); | |||
| 1525 | (void) memmove(temp, value, bytelength)__builtin___memmove_chk (temp, value, bytelength, __builtin_object_size (temp, 0)); | |||
| 1526 | value = temp; | |||
| 1527 | } | |||
| 1528 | if (value == NULL((void*)0)) value = __XtMalloc((unsigned)1); | |||
| 1529 | (*callback)(widget, closure, &selection, &resulttype, | |||
| 1530 | value, &length, &format); | |||
| 1531 | if (ctx->notify) | |||
| 1532 | (*ctx->notify)(ctx->widget, &selection, &target); | |||
| 1533 | } | |||
| 1534 | } | |||
| 1535 | } | |||
| 1536 | ||||
| 1537 | static void GetSelectionValue( | |||
| 1538 | Widget widget, | |||
| 1539 | Atom selection, | |||
| 1540 | Atom target, | |||
| 1541 | XtSelectionCallbackProc callback, | |||
| 1542 | XtPointer closure, | |||
| 1543 | Time time, | |||
| 1544 | Boolean incremental, | |||
| 1545 | Atom property) | |||
| 1546 | { | |||
| 1547 | Select ctx; | |||
| 1548 | CallBackInfo info; | |||
| 1549 | Atom properties[1]; | |||
| 1550 | ||||
| 1551 | properties[0] = property; | |||
| 1552 | ||||
| 1553 | ctx = FindCtx(XtDisplay(widget)(((widget)->core.screen)->display), selection); | |||
| 1554 | if (ctx->widget && !ctx->was_disowned) { | |||
| 1555 | RequestRec req; | |||
| 1556 | ctx->req = &req; | |||
| 1557 | req.ctx = ctx; | |||
| 1558 | req.event.time = time; | |||
| 1559 | ctx->ref_count++; | |||
| 1560 | DoLocalTransfer(&req, selection, target, widget, | |||
| 1561 | callback, closure, incremental, property); | |||
| 1562 | if (--ctx->ref_count == 0 && ctx->free_when_done) | |||
| 1563 | XtFree((char*)ctx); | |||
| 1564 | else | |||
| 1565 | ctx->req = NULL((void*)0); | |||
| 1566 | } | |||
| 1567 | else { | |||
| 1568 | info = MakeInfo(ctx, &callback, &closure, 1, widget, | |||
| 1569 | time, &incremental, properties); | |||
| 1570 | info->target = (Atom *)__XtMalloc((unsigned) sizeof(Atom)); | |||
| 1571 | *(info->target) = target; | |||
| 1572 | RequestSelectionValue(info, selection, target); | |||
| 1573 | } | |||
| 1574 | } | |||
| 1575 | ||||
| 1576 | ||||
| 1577 | void XtGetSelectionValue( | |||
| 1578 | Widget widget, | |||
| 1579 | Atom selection, | |||
| 1580 | Atom target, | |||
| 1581 | XtSelectionCallbackProc callback, | |||
| 1582 | XtPointer closure, | |||
| 1583 | Time time) | |||
| 1584 | { | |||
| 1585 | Atom property; | |||
| 1586 | Boolean incr = False0; | |||
| 1587 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); | |||
| 1588 | ||||
| 1589 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); | |||
| 1590 | property = GetParamInfo(widget, selection); | |||
| 1591 | RemoveParamInfo(widget, selection); | |||
| 1592 | ||||
| 1593 | if (IsGatheringRequest(widget, selection)) { | |||
| 1594 | AddSelectionRequests(widget, selection, 1, &target, &callback, 1, | |||
| 1595 | &closure, &incr, &property); | |||
| 1596 | } else { | |||
| 1597 | GetSelectionValue(widget, selection, target, callback, | |||
| 1598 | closure, time, FALSE0, property); | |||
| 1599 | } | |||
| 1600 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); | |||
| 1601 | } | |||
| 1602 | ||||
| 1603 | ||||
| 1604 | void XtGetSelectionValueIncremental( | |||
| 1605 | Widget widget, | |||
| 1606 | Atom selection, | |||
| 1607 | Atom target, | |||
| 1608 | XtSelectionCallbackProc callback, | |||
| 1609 | XtPointer closure, | |||
| 1610 | Time time) | |||
| 1611 | { | |||
| 1612 | Atom property; | |||
| 1613 | Boolean incr = TRUE1; | |||
| 1614 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); | |||
| 1615 | ||||
| 1616 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); | |||
| 1617 | property = GetParamInfo(widget, selection); | |||
| 1618 | RemoveParamInfo(widget, selection); | |||
| 1619 | ||||
| 1620 | if (IsGatheringRequest(widget, selection)) { | |||
| 1621 | AddSelectionRequests(widget, selection, 1, &target, &callback, 1, | |||
| 1622 | &closure, &incr, &property); | |||
| 1623 | } else { | |||
| 1624 | GetSelectionValue(widget, selection, target, callback, | |||
| 1625 | closure, time, TRUE1, property); | |||
| 1626 | } | |||
| 1627 | ||||
| 1628 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); | |||
| 1629 | } | |||
| 1630 | ||||
| 1631 | ||||
| 1632 | static void GetSelectionValues( | |||
| 1633 | Widget widget, | |||
| 1634 | Atom selection, | |||
| 1635 | Atom *targets, | |||
| 1636 | int count, | |||
| 1637 | XtSelectionCallbackProc *callbacks, | |||
| 1638 | int num_callbacks, | |||
| 1639 | XtPointer *closures, | |||
| 1640 | Time time, | |||
| 1641 | Boolean *incremental, | |||
| 1642 | Atom *properties) | |||
| 1643 | { | |||
| 1644 | Select ctx; | |||
| 1645 | CallBackInfo info; | |||
| 1646 | IndirectPair *pairs, *p; | |||
| 1647 | Atom *t; | |||
| 1648 | ||||
| 1649 | if (count == 0) return; | |||
| 1650 | ctx = FindCtx(XtDisplay(widget)(((widget)->core.screen)->display), selection); | |||
| 1651 | if (ctx->widget && !ctx->was_disowned) { | |||
| 1652 | int j, i; | |||
| 1653 | RequestRec req; | |||
| 1654 | ctx->req = &req; | |||
| 1655 | req.ctx = ctx; | |||
| 1656 | req.event.time = time; | |||
| 1657 | ctx->ref_count++; | |||
| 1658 | for (i = 0, j = 0; count; count--, i++, j++ ) { | |||
| 1659 | if (j >= num_callbacks) j = 0; | |||
| 1660 | ||||
| 1661 | DoLocalTransfer(&req, selection, targets[i], widget, | |||
| 1662 | callbacks[j], closures[i], incremental[i], | |||
| 1663 | properties ? properties[i] : None0L); | |||
| 1664 | ||||
| 1665 | } | |||
| 1666 | if (--ctx->ref_count == 0 && ctx->free_when_done) | |||
| 1667 | XtFree((char*)ctx); | |||
| 1668 | else | |||
| 1669 | ctx->req = NULL((void*)0); | |||
| 1670 | } else { | |||
| 1671 | XtSelectionCallbackProc *passed_callbacks; | |||
| 1672 | XtSelectionCallbackProc stack_cbs[32]; | |||
| 1673 | int i = 0, j = 0; | |||
| 1674 | ||||
| 1675 | passed_callbacks = (XtSelectionCallbackProc *) | |||
| 1676 | XtStackAlloc(sizeof(XtSelectionCallbackProc) * count, stack_cbs)((sizeof(XtSelectionCallbackProc) * count) <= sizeof(stack_cbs ) ? (XtPointer)(stack_cbs) : XtMalloc((unsigned)(sizeof(XtSelectionCallbackProc ) * count))); | |||
| 1677 | ||||
| 1678 | /* To deal with the old calls from XtGetSelectionValues* we | |||
| 1679 | will repeat however many callbacks have been passed into | |||
| 1680 | the array */ | |||
| 1681 | for(i = 0; i < count; i++) { | |||
| 1682 | if (j >= num_callbacks) j = 0; | |||
| 1683 | passed_callbacks[i] = callbacks[j]; | |||
| ||||
| 1684 | j++; | |||
| 1685 | } | |||
| 1686 | info = MakeInfo(ctx, passed_callbacks, closures, count, widget, | |||
| 1687 | time, incremental, properties); | |||
| 1688 | XtStackFree((XtPointer) passed_callbacks, stack_cbs){ if (((XtPointer) passed_callbacks) != ((XtPointer)(stack_cbs ))) XtFree((XtPointer) passed_callbacks); }; | |||
| 1689 | ||||
| 1690 | info->target = (Atom *)__XtMalloc((unsigned) ((count+1) * sizeof(Atom))); | |||
| 1691 | (*info->target) = ctx->prop_list->indirect_atom; | |||
| 1692 | (void) memmove((char *) info->target+sizeof(Atom), (char *) targets,__builtin___memmove_chk ((char *) info->target+sizeof(Atom ), (char *) targets, count * sizeof(Atom), __builtin_object_size ((char *) info->target+sizeof(Atom), 0)) | |||
| 1693 | count * sizeof(Atom))__builtin___memmove_chk ((char *) info->target+sizeof(Atom ), (char *) targets, count * sizeof(Atom), __builtin_object_size ((char *) info->target+sizeof(Atom), 0)); | |||
| 1694 | pairs = (IndirectPair*)__XtMalloc((unsigned)(count*sizeof(IndirectPair))); | |||
| 1695 | for (p = &pairs[count-1], t = &targets[count-1], i = count - 1; | |||
| 1696 | p >= pairs; p--, t--, i--) { | |||
| 1697 | p->target = *t; | |||
| 1698 | if (properties == NULL((void*)0) || properties[i] == None0L) { | |||
| 1699 | p->property = GetSelectionProperty(XtDisplay(widget)(((widget)->core.screen)->display)); | |||
| 1700 | XDeleteProperty(XtDisplay(widget)(((widget)->core.screen)->display), XtWindow(widget)((widget)->core.window), | |||
| 1701 | p->property); | |||
| 1702 | } else { | |||
| 1703 | p->property = properties[i]; | |||
| 1704 | } | |||
| 1705 | } | |||
| 1706 | XChangeProperty(XtDisplay(widget)(((widget)->core.screen)->display), XtWindow(widget)((widget)->core.window), | |||
| 1707 | info->property, info->property, | |||
| 1708 | 32, PropModeReplace0, (unsigned char *) pairs, | |||
| 1709 | count * IndirectPairWordSize2); | |||
| 1710 | XtFree((char*)pairs); | |||
| 1711 | RequestSelectionValue(info, selection, ctx->prop_list->indirect_atom); | |||
| 1712 | } | |||
| 1713 | } | |||
| 1714 | ||||
| 1715 | ||||
| 1716 | void XtGetSelectionValues( | |||
| 1717 | Widget widget, | |||
| 1718 | Atom selection, | |||
| 1719 | Atom *targets, | |||
| 1720 | int count, | |||
| 1721 | XtSelectionCallbackProc callback, | |||
| 1722 | XtPointer *closures, | |||
| 1723 | Time time) | |||
| 1724 | { | |||
| 1725 | Boolean incremental_values[32]; | |||
| 1726 | Boolean *incremental; | |||
| 1727 | int i; | |||
| 1728 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); | |||
| 1729 | ||||
| 1730 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); | |||
| 1731 | incremental = XtStackAlloc(count * sizeof(Boolean), incremental_values)((count * sizeof(Boolean)) <= sizeof(incremental_values) ? (XtPointer)(incremental_values) : XtMalloc((unsigned)(count * sizeof(Boolean)))); | |||
| 1732 | for(i = 0; i < count; i++) incremental[i] = FALSE0; | |||
| 1733 | if (IsGatheringRequest(widget, selection)) { | |||
| 1734 | AddSelectionRequests(widget, selection, count, targets, &callback, | |||
| 1735 | 1, closures, incremental, NULL((void*)0)); | |||
| 1736 | } else { | |||
| 1737 | GetSelectionValues(widget, selection, targets, count, &callback, 1, | |||
| 1738 | closures, time, incremental, NULL((void*)0)); | |||
| 1739 | } | |||
| 1740 | XtStackFree((XtPointer) incremental, incremental_values){ if (((XtPointer) incremental) != ((XtPointer)(incremental_values ))) XtFree((XtPointer) incremental); }; | |||
| 1741 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); | |||
| 1742 | } | |||
| 1743 | ||||
| 1744 | ||||
| 1745 | void XtGetSelectionValuesIncremental( | |||
| 1746 | Widget widget, | |||
| 1747 | Atom selection, | |||
| 1748 | Atom *targets, | |||
| 1749 | int count, | |||
| 1750 | XtSelectionCallbackProc callback, | |||
| 1751 | XtPointer *closures, | |||
| 1752 | Time time) | |||
| 1753 | { | |||
| 1754 | Boolean incremental_values[32]; | |||
| 1755 | Boolean *incremental; | |||
| 1756 | int i; | |||
| 1757 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); | |||
| 1758 | ||||
| 1759 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); | |||
| 1760 | incremental = XtStackAlloc(count * sizeof(Boolean), incremental_values)((count * sizeof(Boolean)) <= sizeof(incremental_values) ? (XtPointer)(incremental_values) : XtMalloc((unsigned)(count * sizeof(Boolean)))); | |||
| 1761 | for(i = 0; i < count; i++) incremental[i] = TRUE1; | |||
| 1762 | if (IsGatheringRequest(widget, selection)) { | |||
| 1763 | AddSelectionRequests(widget, selection, count, targets, &callback, | |||
| 1764 | 1, closures, incremental, NULL((void*)0)); | |||
| 1765 | } else { | |||
| 1766 | GetSelectionValues(widget, selection, targets, count, | |||
| 1767 | &callback, 1, closures, time, incremental, NULL((void*)0)); | |||
| 1768 | } | |||
| 1769 | XtStackFree((XtPointer) incremental, incremental_values){ if (((XtPointer) incremental) != ((XtPointer)(incremental_values ))) XtFree((XtPointer) incremental); }; | |||
| 1770 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); | |||
| 1771 | } | |||
| 1772 | ||||
| 1773 | ||||
| 1774 | static Request GetRequestRecord( | |||
| 1775 | Widget widget, | |||
| 1776 | Atom selection, | |||
| 1777 | XtRequestId id) | |||
| 1778 | { | |||
| 1779 | Request req = (Request)id; | |||
| 1780 | Select ctx = NULL((void*)0); | |||
| 1781 | ||||
| 1782 | if ( (req == NULL((void*)0) | |||
| 1783 | && ((ctx = FindCtx( XtDisplay(widget)(((widget)->core.screen)->display), selection )) == NULL((void*)0) | |||
| 1784 | || ctx->req == NULL((void*)0) | |||
| 1785 | || ctx->selection != selection | |||
| 1786 | || ctx->widget == NULL((void*)0))) | |||
| 1787 | || (req != NULL((void*)0) | |||
| 1788 | && (req->ctx == NULL((void*)0) | |||
| 1789 | || req->ctx->selection != selection | |||
| 1790 | || req->ctx->widget != widget))) | |||
| 1791 | { | |||
| 1792 | String params = XtName(widget); | |||
| 1793 | Cardinal num_params = 1; | |||
| 1794 | XtAppWarningMsg(XtWidgetToApplicationContext(widget), | |||
| 1795 | "notInConvertSelection", "xtGetSelectionRequest", | |||
| 1796 | XtCXtToolkitError, | |||
| 1797 | "XtGetSelectionRequest or XtGetSelectionParameters called for widget \"%s\" outside of ConvertSelection proc", | |||
| 1798 | ¶ms, &num_params | |||
| 1799 | ); | |||
| 1800 | return NULL((void*)0); | |||
| 1801 | } | |||
| 1802 | ||||
| 1803 | if (req == NULL((void*)0)) { | |||
| 1804 | /* non-incremental owner; only one request can be | |||
| 1805 | * outstanding at a time, so it's safe to keep ptr in ctx */ | |||
| 1806 | req = ctx->req; | |||
| 1807 | } | |||
| 1808 | return req; | |||
| 1809 | } | |||
| 1810 | ||||
| 1811 | XSelectionRequestEvent *XtGetSelectionRequest( | |||
| 1812 | Widget widget, | |||
| 1813 | Atom selection, | |||
| 1814 | XtRequestId id) | |||
| 1815 | { | |||
| 1816 | Request req = (Request)id; | |||
| 1817 | WIDGET_TO_APPCON(widget)XtAppContext app = (widget && _XtProcessLock ? XtWidgetToApplicationContext (widget) : ((void*)0)); | |||
| 1818 | ||||
| 1819 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); | |||
| 1820 | ||||
| 1821 | req = GetRequestRecord(widget, selection, id); | |||
| 1822 | ||||
| 1823 | if (! req) { | |||
| 1824 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); | |||
| 1825 | return (XSelectionRequestEvent*) NULL((void*)0); | |||
| 1826 | } | |||
| 1827 | ||||
| 1828 | if (req->event.type == 0) { | |||
| 1829 | /* owner is local; construct the remainder of the event */ | |||
| 1830 | req->event.type = SelectionRequest30; | |||
| 1831 | req->event.serial = LastKnownRequestProcessed(XtDisplay(widget))(((_XPrivDisplay)((((widget)->core.screen)->display)))-> last_request_read); | |||
| 1832 | req->event.send_event = True1; | |||
| 1833 | req->event.display = XtDisplay(widget)(((widget)->core.screen)->display); | |||
| 1834 | req->event.owner = XtWindow(req->ctx->widget)((req->ctx->widget)->core.window); | |||
| 1835 | req->event.selection = selection; | |||
| 1836 | } | |||
| 1837 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); | |||
| 1838 | return &req->event; | |||
| 1839 | } | |||
| 1840 | ||||
| 1841 | /* Property atom access */ | |||
| 1842 | Atom XtReservePropertyAtom( | |||
| 1843 | Widget w) | |||
| 1844 | { | |||
| 1845 | return(GetSelectionProperty(XtDisplay(w)(((w)->core.screen)->display))); | |||
| 1846 | } | |||
| 1847 | ||||
| 1848 | void XtReleasePropertyAtom( | |||
| 1849 | Widget w, | |||
| 1850 | Atom atom) | |||
| 1851 | { | |||
| 1852 | FreeSelectionProperty(XtDisplay(w)(((w)->core.screen)->display), atom); | |||
| 1853 | } | |||
| 1854 | ||||
| 1855 | ||||
| 1856 | /* Multiple utilities */ | |||
| 1857 | ||||
| 1858 | /* All requests are put in a single list per widget. It is | |||
| 1859 | very unlikely anyone will be gathering multiple MULTIPLE | |||
| 1860 | requests at the same time, so the loss in efficiency for | |||
| 1861 | this case is acceptable */ | |||
| 1862 | ||||
| 1863 | /* Queue one or more requests to the one we're gathering */ | |||
| 1864 | static void AddSelectionRequests( | |||
| 1865 | Widget wid, | |||
| 1866 | Atom sel, | |||
| 1867 | int count, | |||
| 1868 | Atom *targets, | |||
| 1869 | XtSelectionCallbackProc *callbacks, | |||
| 1870 | int num_cb, | |||
| 1871 | XtPointer *closures, | |||
| 1872 | Boolean *incrementals, | |||
| 1873 | Atom *properties) | |||
| 1874 | { | |||
| 1875 | QueuedRequestInfo qi; | |||
| 1876 | Window window = XtWindow(wid)((wid)->core.window); | |||
| 1877 | Display *dpy = XtDisplay(wid)(((wid)->core.screen)->display); | |||
| 1878 | ||||
| 1879 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 1880 | if (multipleContext == 0) multipleContext = XUniqueContext()((XContext) XrmUniqueQuark()); | |||
| 1881 | ||||
| 1882 | qi = NULL((void*)0); | |||
| 1883 | (void) XFindContext(dpy, window, multipleContext, (XPointer*) &qi); | |||
| 1884 | ||||
| 1885 | if (qi != NULL((void*)0)) { | |||
| 1886 | QueuedRequest *req = qi->requests; | |||
| 1887 | int start = qi->count; | |||
| 1888 | int i = 0; | |||
| 1889 | int j = 0; | |||
| 1890 | ||||
| 1891 | qi->count += count; | |||
| 1892 | req = (QueuedRequest*) XtRealloc((char*) req, | |||
| 1893 | (start + count) * | |||
| 1894 | sizeof(QueuedRequest)); | |||
| 1895 | while(i < count) { | |||
| 1896 | QueuedRequest newreq = (QueuedRequest) | |||
| 1897 | __XtMalloc(sizeof(QueuedRequestRec)); | |||
| 1898 | newreq->selection = sel; | |||
| 1899 | newreq->target = targets[i]; | |||
| 1900 | if (properties != NULL((void*)0)) | |||
| 1901 | newreq->param = properties[i]; | |||
| 1902 | else { | |||
| 1903 | newreq->param = GetSelectionProperty(dpy); | |||
| 1904 | XDeleteProperty(dpy, window, newreq->param); | |||
| 1905 | } | |||
| 1906 | newreq->callback = callbacks[j]; | |||
| 1907 | newreq->closure = closures[i]; | |||
| 1908 | newreq->incremental = incrementals[i]; | |||
| 1909 | ||||
| 1910 | req[start] = newreq; | |||
| 1911 | start++; | |||
| 1912 | i++; | |||
| 1913 | j++; | |||
| 1914 | if (j > num_cb) j = 0; | |||
| 1915 | } | |||
| 1916 | ||||
| 1917 | qi->requests = req; | |||
| 1918 | } else { | |||
| 1919 | /* Impossible */ | |||
| 1920 | } | |||
| 1921 | ||||
| 1922 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 1923 | } | |||
| 1924 | ||||
| 1925 | /* Only call IsGatheringRequest when we have a lock already */ | |||
| 1926 | ||||
| 1927 | static Boolean IsGatheringRequest( | |||
| 1928 | Widget wid, | |||
| 1929 | Atom sel) | |||
| 1930 | { | |||
| 1931 | QueuedRequestInfo qi; | |||
| 1932 | Window window = XtWindow(wid)((wid)->core.window); | |||
| 1933 | Display *dpy = XtDisplay(wid)(((wid)->core.screen)->display); | |||
| 1934 | Boolean found = False0; | |||
| 1935 | int i; | |||
| 1936 | ||||
| 1937 | if (multipleContext == 0) multipleContext = XUniqueContext()((XContext) XrmUniqueQuark()); | |||
| 1938 | ||||
| 1939 | qi = NULL((void*)0); | |||
| 1940 | (void) XFindContext(dpy, window, multipleContext, (XPointer*) &qi); | |||
| 1941 | ||||
| 1942 | if (qi != NULL((void*)0)) { | |||
| 1943 | i = 0; | |||
| 1944 | while(qi->selections[i] != None0L) { | |||
| 1945 | if (qi->selections[i] == sel) { | |||
| 1946 | found = True1; | |||
| 1947 | break; | |||
| 1948 | } | |||
| 1949 | i++; | |||
| 1950 | } | |||
| 1951 | } | |||
| 1952 | ||||
| 1953 | return(found); | |||
| 1954 | } | |||
| 1955 | ||||
| 1956 | /* Cleanup request scans the request queue and releases any | |||
| 1957 | properties queued, and removes any requests queued */ | |||
| 1958 | static void CleanupRequest( | |||
| 1959 | Display *dpy, | |||
| 1960 | QueuedRequestInfo qi, | |||
| 1961 | Atom sel) | |||
| 1962 | { | |||
| 1963 | int i, j, n; | |||
| 1964 | ||||
| 1965 | i = 0; | |||
| 1966 | ||||
| 1967 | /* Remove this selection from the list */ | |||
| 1968 | n = 0; | |||
| 1969 | while(qi->selections[n] != sel && | |||
| 1970 | qi->selections[n] != None0L) n++; | |||
| 1971 | if (qi->selections[n] == sel) { | |||
| 1972 | while(qi->selections[n] != None0L) { | |||
| 1973 | qi->selections[n] = qi->selections[n + 1]; | |||
| 1974 | n++; | |||
| 1975 | } | |||
| 1976 | } | |||
| 1977 | ||||
| 1978 | while(i < qi->count) { | |||
| 1979 | QueuedRequest req = qi->requests[i]; | |||
| 1980 | ||||
| 1981 | if (req->selection == sel) { | |||
| 1982 | /* Match */ | |||
| 1983 | if (req->param != None0L) | |||
| 1984 | FreeSelectionProperty(dpy, req->param); | |||
| 1985 | qi->count--; | |||
| 1986 | ||||
| 1987 | for(j = i; j < qi->count; j++) | |||
| 1988 | qi->requests[j] = qi->requests[j + 1]; | |||
| 1989 | ||||
| 1990 | XtFree((char*) req); | |||
| 1991 | } else { | |||
| 1992 | i++; | |||
| 1993 | } | |||
| 1994 | } | |||
| 1995 | } | |||
| 1996 | ||||
| 1997 | void XtCreateSelectionRequest( | |||
| 1998 | Widget widget, | |||
| 1999 | Atom selection) | |||
| 2000 | { | |||
| 2001 | QueuedRequestInfo queueInfo; | |||
| 2002 | Window window = XtWindow(widget)((widget)->core.window); | |||
| 2003 | Display *dpy = XtDisplay(widget)(((widget)->core.screen)->display); | |||
| 2004 | int n; | |||
| 2005 | ||||
| 2006 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 2007 | if (multipleContext == 0) multipleContext = XUniqueContext()((XContext) XrmUniqueQuark()); | |||
| 2008 | ||||
| 2009 | queueInfo = NULL((void*)0); | |||
| 2010 | (void) XFindContext(dpy, window, multipleContext, (XPointer*) &queueInfo); | |||
| 2011 | ||||
| 2012 | /* If there is one, then cancel it */ | |||
| 2013 | if (queueInfo != NULL((void*)0)) | |||
| 2014 | CleanupRequest(dpy, queueInfo, selection); | |||
| 2015 | else { | |||
| 2016 | /* Create it */ | |||
| 2017 | queueInfo = (QueuedRequestInfo) __XtMalloc(sizeof(QueuedRequestInfoRec)); | |||
| 2018 | queueInfo->count = 0; | |||
| 2019 | queueInfo->selections = (Atom*) __XtMalloc(sizeof(Atom) * 2); | |||
| 2020 | queueInfo->selections[0] = None0L; | |||
| 2021 | queueInfo->requests = (QueuedRequest *) | |||
| 2022 | __XtMalloc(sizeof(QueuedRequest)); | |||
| 2023 | } | |||
| 2024 | ||||
| 2025 | /* Append this selection to list */ | |||
| 2026 | n = 0; | |||
| 2027 | while(queueInfo->selections[n] != None0L) n++; | |||
| 2028 | queueInfo->selections = | |||
| 2029 | (Atom*) XtRealloc((char*) queueInfo->selections, | |||
| 2030 | (n + 2) * sizeof(Atom)); | |||
| 2031 | queueInfo->selections[n] = selection; | |||
| 2032 | queueInfo->selections[n + 1] = None0L; | |||
| 2033 | ||||
| 2034 | (void) XSaveContext(dpy, window, multipleContext, (char*) queueInfo); | |||
| 2035 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 2036 | } | |||
| 2037 | ||||
| 2038 | void XtSendSelectionRequest( | |||
| 2039 | Widget widget, | |||
| 2040 | Atom selection, | |||
| 2041 | Time time) | |||
| 2042 | { | |||
| 2043 | QueuedRequestInfo queueInfo; | |||
| 2044 | Window window = XtWindow(widget)((widget)->core.window); | |||
| 2045 | Display *dpy = XtDisplay(widget)(((widget)->core.screen)->display); | |||
| 2046 | ||||
| 2047 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 2048 | if (multipleContext == 0) multipleContext = XUniqueContext()((XContext) XrmUniqueQuark()); | |||
| ||||
| 2049 | ||||
| 2050 | queueInfo = NULL((void*)0); | |||
| 2051 | (void) XFindContext(dpy, window, multipleContext, (XPointer*) &queueInfo); | |||
| 2052 | if (queueInfo != NULL((void*)0)) { | |||
| 2053 | int count = 0; | |||
| 2054 | int i; | |||
| 2055 | QueuedRequest *req = queueInfo->requests; | |||
| 2056 | ||||
| 2057 | /* Construct the requests and send it using | |||
| 2058 | GetSelectionValues */ | |||
| 2059 | for(i = 0; i < queueInfo->count; i++) | |||
| 2060 | if (req[i]->selection == selection) count++; | |||
| 2061 | ||||
| 2062 | if (count > 0) { | |||
| 2063 | if (count == 1) { | |||
| 2064 | for(i = 0; i < queueInfo->count; i++) | |||
| 2065 | if (req[i]->selection == selection) break; | |||
| 2066 | ||||
| 2067 | /* special case a multiple which isn't needed */ | |||
| 2068 | GetSelectionValue(widget, selection, req[i]->target, | |||
| 2069 | req[i]->callback, req[i]->closure, time, | |||
| 2070 | req[i]->incremental, req[i]->param); | |||
| 2071 | } else { | |||
| 2072 | Atom *targets; | |||
| 2073 | Atom t[PREALLOCED32]; | |||
| 2074 | XtSelectionCallbackProc *cbs; | |||
| 2075 | XtSelectionCallbackProc c[PREALLOCED32]; | |||
| 2076 | XtPointer *closures; | |||
| 2077 | XtPointer cs[PREALLOCED32]; | |||
| 2078 | Boolean *incrs; | |||
| 2079 | Boolean ins[PREALLOCED32]; | |||
| 2080 | Atom *props; | |||
| 2081 | Atom p[PREALLOCED32]; | |||
| 2082 | int i = 0; | |||
| 2083 | int j = 0; | |||
| 2084 | ||||
| 2085 | /* Allocate */ | |||
| 2086 | targets = (Atom *) XtStackAlloc(count * sizeof(Atom), t)((count * sizeof(Atom)) <= sizeof(t) ? (XtPointer)(t) : XtMalloc ((unsigned)(count * sizeof(Atom)))); | |||
| 2087 | cbs = (XtSelectionCallbackProc *) | |||
| 2088 | XtStackAlloc(count * sizeof(XtSelectionCallbackProc), c)((count * sizeof(XtSelectionCallbackProc)) <= sizeof(c) ? ( XtPointer)(c) : XtMalloc((unsigned)(count * sizeof(XtSelectionCallbackProc )))); | |||
| 2089 | closures = (XtPointer *) XtStackAlloc(count * sizeof(XtPointer), cs)((count * sizeof(XtPointer)) <= sizeof(cs) ? (XtPointer)(cs ) : XtMalloc((unsigned)(count * sizeof(XtPointer)))); | |||
| 2090 | incrs = (Boolean *) XtStackAlloc(count * sizeof(Boolean), ins)((count * sizeof(Boolean)) <= sizeof(ins) ? (XtPointer)(ins ) : XtMalloc((unsigned)(count * sizeof(Boolean)))); | |||
| 2091 | props = (Atom *) XtStackAlloc(count * sizeof(Atom), p)((count * sizeof(Atom)) <= sizeof(p) ? (XtPointer)(p) : XtMalloc ((unsigned)(count * sizeof(Atom)))); | |||
| 2092 | ||||
| 2093 | /* Copy */ | |||
| 2094 | for(i = 0; i < queueInfo->count; i++) { | |||
| 2095 | if (req[i]->selection == selection) { | |||
| 2096 | targets[j] = req[i]->target; | |||
| 2097 | cbs[j] = req[i]->callback; | |||
| 2098 | closures[j] = req[i]->closure; | |||
| 2099 | incrs[j] = req[i]->incremental; | |||
| 2100 | props[j] = req[i]->param; | |||
| 2101 | j++; | |||
| 2102 | } | |||
| 2103 | } | |||
| 2104 | ||||
| 2105 | /* Make the request */ | |||
| 2106 | GetSelectionValues(widget, selection, targets, count, | |||
| 2107 | cbs, count, closures, time, incrs, props); | |||
| 2108 | ||||
| 2109 | /* Free */ | |||
| 2110 | XtStackFree((XtPointer) targets, t){ if (((XtPointer) targets) != ((XtPointer)(t))) XtFree((XtPointer ) targets); }; | |||
| 2111 | XtStackFree((XtPointer) cbs, c){ if (((XtPointer) cbs) != ((XtPointer)(c))) XtFree((XtPointer ) cbs); }; | |||
| 2112 | XtStackFree((XtPointer) closures, cs){ if (((XtPointer) closures) != ((XtPointer)(cs))) XtFree((XtPointer ) closures); }; | |||
| 2113 | XtStackFree((XtPointer) incrs, ins){ if (((XtPointer) incrs) != ((XtPointer)(ins))) XtFree((XtPointer ) incrs); }; | |||
| 2114 | XtStackFree((XtPointer) props, p){ if (((XtPointer) props) != ((XtPointer)(p))) XtFree((XtPointer ) props); }; | |||
| 2115 | } | |||
| 2116 | } | |||
| 2117 | } | |||
| 2118 | ||||
| 2119 | CleanupRequest(dpy, queueInfo, selection); | |||
| 2120 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 2121 | } | |||
| 2122 | ||||
| 2123 | void XtCancelSelectionRequest( | |||
| 2124 | Widget widget, | |||
| 2125 | Atom selection) | |||
| 2126 | { | |||
| 2127 | QueuedRequestInfo queueInfo; | |||
| 2128 | Window window = XtWindow(widget)((widget)->core.window); | |||
| 2129 | Display *dpy = XtDisplay(widget)(((widget)->core.screen)->display); | |||
| 2130 | ||||
| 2131 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 2132 | if (multipleContext == 0) multipleContext = XUniqueContext()((XContext) XrmUniqueQuark()); | |||
| 2133 | ||||
| 2134 | queueInfo = NULL((void*)0); | |||
| 2135 | (void) XFindContext(dpy, window, multipleContext, (XPointer*) &queueInfo); | |||
| 2136 | /* If there is one, then cancel it */ | |||
| 2137 | if (queueInfo != NULL((void*)0)) | |||
| 2138 | CleanupRequest(dpy, queueInfo, selection); | |||
| 2139 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 2140 | } | |||
| 2141 | ||||
| 2142 | /* Parameter utilities */ | |||
| 2143 | ||||
| 2144 | /* Parameters on a selection request */ | |||
| 2145 | /* Places data on allocated parameter atom, then records the | |||
| 2146 | parameter atom data for use in the next call to one of | |||
| 2147 | the XtGetSelectionValue functions. */ | |||
| 2148 | void XtSetSelectionParameters( | |||
| 2149 | Widget requestor, | |||
| 2150 | Atom selection, | |||
| 2151 | Atom type, | |||
| 2152 | XtPointer value, | |||
| 2153 | unsigned long length, | |||
| 2154 | int format) | |||
| 2155 | { | |||
| 2156 | Display *dpy = XtDisplay(requestor)(((requestor)->core.screen)->display); | |||
| 2157 | Window window = XtWindow(requestor)((requestor)->core.window); | |||
| 2158 | Atom property = GetParamInfo(requestor, selection); | |||
| 2159 | ||||
| 2160 | if (property == None0L) { | |||
| 2161 | property = GetSelectionProperty(dpy); | |||
| 2162 | AddParamInfo(requestor, selection, property); | |||
| 2163 | } | |||
| 2164 | ||||
| 2165 | XChangeProperty(dpy, window, property, | |||
| 2166 | type, format, PropModeReplace0, | |||
| 2167 | (unsigned char *) value, length); | |||
| 2168 | } | |||
| 2169 | ||||
| 2170 | /* Retrieves data passed in a parameter. Data for this is stored | |||
| 2171 | on the originator's window */ | |||
| 2172 | void XtGetSelectionParameters( | |||
| 2173 | Widget owner, | |||
| 2174 | Atom selection, | |||
| 2175 | XtRequestId request_id, | |||
| 2176 | Atom* type_return, | |||
| 2177 | XtPointer* value_return, | |||
| 2178 | unsigned long* length_return, | |||
| 2179 | int* format_return) | |||
| 2180 | { | |||
| 2181 | Request req; | |||
| 2182 | Display *dpy = XtDisplay(owner)(((owner)->core.screen)->display); | |||
| 2183 | WIDGET_TO_APPCON(owner)XtAppContext app = (owner && _XtProcessLock ? XtWidgetToApplicationContext (owner) : ((void*)0)); | |||
| 2184 | ||||
| 2185 | *value_return = NULL((void*)0); | |||
| 2186 | *length_return = *format_return = 0; | |||
| 2187 | *type_return = None0L; | |||
| 2188 | ||||
| 2189 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); | |||
| 2190 | ||||
| 2191 | req = GetRequestRecord(owner, selection, request_id); | |||
| 2192 | ||||
| 2193 | if (req && req->property) { | |||
| 2194 | unsigned long bytes_after; /* unused */ | |||
| 2195 | StartProtectedSection(dpy, req->requestor); | |||
| 2196 | XGetWindowProperty(dpy, req->requestor, req->property, 0L, 10000000, | |||
| 2197 | False0, AnyPropertyType0L, type_return, format_return, | |||
| 2198 | length_return, &bytes_after, | |||
| 2199 | (unsigned char**) value_return); | |||
| 2200 | EndProtectedSection(dpy); | |||
| 2201 | #ifdef XT_COPY_SELECTION | |||
| 2202 | if (*value_return) { | |||
| 2203 | int size = BYTELENGTH(*length_return, *format_return)((*length_return) * StorageSize[(*format_return)>>4]) + 1; | |||
| 2204 | char *tmp = __XtMalloc((Cardinal) size); | |||
| 2205 | (void) memmove(tmp, *value_return, size)__builtin___memmove_chk (tmp, *value_return, size, __builtin_object_size (tmp, 0)); | |||
| 2206 | XFree(*value_return); | |||
| 2207 | *value_return = tmp; | |||
| 2208 | } | |||
| 2209 | #endif | |||
| 2210 | } | |||
| 2211 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); | |||
| 2212 | } | |||
| 2213 | ||||
| 2214 | /* Parameters are temporarily stashed in an XContext. A list is used because | |||
| 2215 | * there may be more than one selection request in progress. The context | |||
| 2216 | * data is deleted when the list is empty. In the future, the parameter | |||
| 2217 | * context could be merged with other contexts used during selections. | |||
| 2218 | */ | |||
| 2219 | ||||
| 2220 | static void AddParamInfo( | |||
| 2221 | Widget w, | |||
| 2222 | Atom selection, | |||
| 2223 | Atom param_atom) | |||
| 2224 | { | |||
| 2225 | int n; | |||
| 2226 | Param p; | |||
| 2227 | ParamInfo pinfo; | |||
| 2228 | ||||
| 2229 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 2230 | if (paramPropertyContext == 0) | |||
| 2231 | paramPropertyContext = XUniqueContext()((XContext) XrmUniqueQuark()); | |||
| 2232 | ||||
| 2233 | if (XFindContext(XtDisplay(w)(((w)->core.screen)->display), XtWindow(w)((w)->core.window), paramPropertyContext, | |||
| 2234 | (XPointer *) &pinfo)) { | |||
| 2235 | pinfo = (ParamInfo) __XtMalloc(sizeof(ParamInfoRec)); | |||
| 2236 | pinfo->count = 1; | |||
| 2237 | pinfo->paramlist = XtNew(ParamRec)((ParamRec *) XtMalloc((unsigned) sizeof(ParamRec))); | |||
| 2238 | p = pinfo->paramlist; | |||
| 2239 | (void) XSaveContext(XtDisplay(w)(((w)->core.screen)->display), XtWindow(w)((w)->core.window), paramPropertyContext, | |||
| 2240 | (char *)pinfo); | |||
| 2241 | } | |||
| 2242 | else { | |||
| 2243 | for (n = pinfo->count, p = pinfo->paramlist; n; n--, p++) { | |||
| 2244 | if (p->selection == None0L || p->selection == selection) | |||
| 2245 | break; | |||
| 2246 | } | |||
| 2247 | if (n == 0) { | |||
| 2248 | pinfo->count++; | |||
| 2249 | pinfo->paramlist = (Param) | |||
| 2250 | XtRealloc((char*) pinfo->paramlist, | |||
| 2251 | pinfo->count * sizeof(ParamRec)); | |||
| 2252 | p = &pinfo->paramlist[pinfo->count - 1]; | |||
| 2253 | (void) XSaveContext(XtDisplay(w)(((w)->core.screen)->display), XtWindow(w)((w)->core.window), | |||
| 2254 | paramPropertyContext, (char *)pinfo); | |||
| 2255 | } | |||
| 2256 | } | |||
| 2257 | p->selection = selection; | |||
| 2258 | p->param = param_atom; | |||
| 2259 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 2260 | } | |||
| 2261 | ||||
| 2262 | static void RemoveParamInfo( | |||
| 2263 | Widget w, | |||
| 2264 | Atom selection) | |||
| 2265 | { | |||
| 2266 | int n; | |||
| 2267 | Param p; | |||
| 2268 | ParamInfo pinfo; | |||
| 2269 | Boolean retain = False0; | |||
| 2270 | ||||
| 2271 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 2272 | if (paramPropertyContext | |||
| 2273 | && (XFindContext(XtDisplay(w)(((w)->core.screen)->display), XtWindow(w)((w)->core.window), paramPropertyContext, | |||
| 2274 | (XPointer *) &pinfo) == 0)) { | |||
| 2275 | ||||
| 2276 | /* Find and invalidate the parameter data. */ | |||
| 2277 | for (n = pinfo->count, p = pinfo->paramlist; n; n--, p++) { | |||
| 2278 | if (p->selection != None0L) { | |||
| 2279 | if (p->selection == selection) | |||
| 2280 | p->selection = None0L; | |||
| 2281 | else | |||
| 2282 | retain = True1; | |||
| 2283 | } | |||
| 2284 | } | |||
| 2285 | /* If there's no valid data remaining, release the context entry. */ | |||
| 2286 | if (! retain) { | |||
| 2287 | XtFree((char*) pinfo->paramlist); | |||
| 2288 | XtFree((char*) pinfo); | |||
| 2289 | XDeleteContext(XtDisplay(w)(((w)->core.screen)->display), XtWindow(w)((w)->core.window), paramPropertyContext); | |||
| 2290 | } | |||
| 2291 | } | |||
| 2292 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 2293 | } | |||
| 2294 | ||||
| 2295 | static Atom GetParamInfo( | |||
| 2296 | Widget w, | |||
| 2297 | Atom selection) | |||
| 2298 | { | |||
| 2299 | int n; | |||
| 2300 | Param p; | |||
| 2301 | ParamInfo pinfo; | |||
| 2302 | Atom atom = None0L; | |||
| 2303 | ||||
| 2304 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); | |||
| 2305 | if (paramPropertyContext | |||
| 2306 | && (XFindContext(XtDisplay(w)(((w)->core.screen)->display), XtWindow(w)((w)->core.window), paramPropertyContext, | |||
| 2307 | (XPointer *) &pinfo) == 0)) { | |||
| 2308 | ||||
| 2309 | for (n = pinfo->count, p = pinfo->paramlist; n; n--, p++) | |||
| 2310 | if (p->selection == selection) { | |||
| 2311 | atom = p->param; | |||
| 2312 | break; | |||
| 2313 | } | |||
| 2314 | } | |||
| 2315 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); | |||
| 2316 | return atom; | |||
| 2317 | } |