File: | src/Selection.c |
Location: | line 1037, column 19 |
Description: | Dereference of null pointer |
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 | } |