File: | src/Selection.c |
Location: | line 1661, column 4 |
Description: | Function call argument is an uninitialized value |
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 | } |