|
428
|
1 /* mswindows selection processing for XEmacs
|
|
|
2 Copyright (C) 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
|
|
771
|
3 Copyright (C) 2000, 2001 Ben Wing.
|
|
428
|
4
|
|
|
5 This file is part of XEmacs.
|
|
|
6
|
|
|
7 XEmacs is free software; you can redistribute it and/or modify it
|
|
|
8 under the terms of the GNU General Public License as published by the
|
|
|
9 Free Software Foundation; either version 2, or (at your option) any
|
|
|
10 later version.
|
|
|
11
|
|
|
12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
|
|
|
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
15 for more details.
|
|
|
16
|
|
|
17 You should have received a copy of the GNU General Public License
|
|
|
18 along with XEmacs; see the file COPYING. If not, write to
|
|
|
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
|
20 Boston, MA 02111-1307, USA. */
|
|
|
21
|
|
|
22 /* Synched up with: Not synched with FSF. */
|
|
|
23
|
|
771
|
24 /* This file Mule-ized 7-00?? Needs some Unicode review. --ben */
|
|
|
25
|
|
428
|
26 /* Authorship:
|
|
|
27
|
|
|
28 Written by Kevin Gallo for FSF Emacs.
|
|
|
29 Rewritten for mswindows by Jonathan Harris, December 1997 for 21.0.
|
|
771
|
30 Rewritten April 2000 by Ben Wing -- support device methods, Mule-ize.
|
|
442
|
31 Hacked by Alastair Houghton, July 2000 for enhanced clipboard support.
|
|
|
32 */
|
|
428
|
33
|
|
|
34 #include <config.h>
|
|
|
35 #include "lisp.h"
|
|
771
|
36 #include "buffer.h"
|
|
430
|
37 #include "frame.h"
|
|
428
|
38 #include "select.h"
|
|
442
|
39 #include "opaque.h"
|
|
|
40 #include "file-coding.h"
|
|
428
|
41
|
|
|
42 #include "console-msw.h"
|
|
|
43
|
|
771
|
44 static int in_own_selection;
|
|
|
45
|
|
442
|
46 /* A list of handles that we must release. Not accessible from Lisp. */
|
|
|
47 static Lisp_Object Vhandle_alist;
|
|
|
48
|
|
771
|
49 void
|
|
|
50 mswindows_handle_destroyclipboard (void)
|
|
|
51 {
|
|
|
52 /* We also receive a destroy message when we call EmptyClipboard() and
|
|
|
53 we already own it. In this case we don't want to call
|
|
|
54 handle_selection_clear() because it will remove what we're trying
|
|
|
55 to add! */
|
|
|
56 if (!in_own_selection)
|
|
|
57 {
|
|
|
58 /* We own the clipboard and someone else wants it. Delete our
|
|
|
59 cached copy of the clipboard contents so we'll ask for it from
|
|
|
60 Windows again when someone does a paste, and destroy any memory
|
|
|
61 objects we hold on the clipboard that are not in the list of types
|
|
|
62 that Windows will delete itself. */
|
|
|
63 mswindows_destroy_selection (QCLIPBOARD);
|
|
|
64 handle_selection_clear (QCLIPBOARD);
|
|
|
65 }
|
|
|
66 }
|
|
|
67
|
|
|
68 static int
|
|
|
69 mswindows_empty_clipboard (void)
|
|
|
70 {
|
|
|
71 int retval;
|
|
|
72
|
|
|
73 in_own_selection = 1;
|
|
|
74 retval = EmptyClipboard ();
|
|
|
75 in_own_selection = 0;
|
|
|
76 return retval;
|
|
|
77 }
|
|
|
78
|
|
442
|
79 /* Test if this is an X symbol that we understand */
|
|
|
80 static int
|
|
|
81 x_sym_p (Lisp_Object value)
|
|
|
82 {
|
|
|
83 if (NILP (value) || INTP (value))
|
|
|
84 return 0;
|
|
|
85
|
|
|
86 /* Check for some of the X symbols */
|
|
|
87 if (EQ (value, QSTRING)) return 1;
|
|
|
88 if (EQ (value, QTEXT)) return 1;
|
|
|
89 if (EQ (value, QCOMPOUND_TEXT)) return 1;
|
|
|
90
|
|
|
91 return 0;
|
|
|
92 }
|
|
|
93
|
|
|
94 /* This converts a Lisp symbol to an MS-Windows clipboard format.
|
|
|
95 We have symbols for all predefined clipboard formats, but that
|
|
|
96 doesn't mean we support them all ;-)
|
|
|
97 The name of this function is actually a lie - it also knows about
|
|
|
98 integers and strings... */
|
|
|
99 static UINT
|
|
|
100 symbol_to_ms_cf (Lisp_Object value)
|
|
428
|
101 {
|
|
442
|
102 /* If it's NIL, we're in trouble. */
|
|
|
103 if (NILP (value)) return 0;
|
|
|
104
|
|
|
105 /* If it's an integer, assume it's a format ID */
|
|
|
106 if (INTP (value)) return (UINT) (XINT (value));
|
|
|
107
|
|
|
108 /* If it's a string, register the format(!) */
|
|
|
109 if (STRINGP (value))
|
|
771
|
110 {
|
|
|
111 Extbyte *valext;
|
|
|
112 LISP_STRING_TO_TSTR (value, valext);
|
|
|
113 return qxeRegisterClipboardFormat (valext);
|
|
|
114 }
|
|
442
|
115
|
|
|
116 /* Check for Windows clipboard format symbols */
|
|
|
117 if (EQ (value, QCF_TEXT)) return CF_TEXT;
|
|
|
118 if (EQ (value, QCF_BITMAP)) return CF_BITMAP;
|
|
|
119 if (EQ (value, QCF_METAFILEPICT)) return CF_METAFILEPICT;
|
|
|
120 if (EQ (value, QCF_SYLK)) return CF_SYLK;
|
|
|
121 if (EQ (value, QCF_DIF)) return CF_DIF;
|
|
|
122 if (EQ (value, QCF_TIFF)) return CF_TIFF;
|
|
|
123 if (EQ (value, QCF_OEMTEXT)) return CF_OEMTEXT;
|
|
|
124 if (EQ (value, QCF_DIB)) return CF_DIB;
|
|
|
125 #ifdef CF_DIBV5
|
|
|
126 if (EQ (value, QCF_DIBV5)) return CF_DIBV5;
|
|
|
127 #endif
|
|
|
128 if (EQ (value, QCF_PALETTE)) return CF_PALETTE;
|
|
|
129 if (EQ (value, QCF_PENDATA)) return CF_PENDATA;
|
|
|
130 if (EQ (value, QCF_RIFF)) return CF_RIFF;
|
|
|
131 if (EQ (value, QCF_WAVE)) return CF_WAVE;
|
|
|
132 if (EQ (value, QCF_UNICODETEXT)) return CF_UNICODETEXT;
|
|
|
133 if (EQ (value, QCF_ENHMETAFILE)) return CF_ENHMETAFILE;
|
|
|
134 if (EQ (value, QCF_HDROP)) return CF_HDROP;
|
|
|
135 if (EQ (value, QCF_LOCALE)) return CF_LOCALE;
|
|
|
136 if (EQ (value, QCF_OWNERDISPLAY)) return CF_OWNERDISPLAY;
|
|
|
137 if (EQ (value, QCF_DSPTEXT)) return CF_DSPTEXT;
|
|
|
138 if (EQ (value, QCF_DSPBITMAP)) return CF_DSPBITMAP;
|
|
|
139 if (EQ (value, QCF_DSPMETAFILEPICT)) return CF_DSPMETAFILEPICT;
|
|
|
140 if (EQ (value, QCF_DSPENHMETAFILE)) return CF_DSPENHMETAFILE;
|
|
|
141
|
|
|
142 return 0;
|
|
|
143 }
|
|
|
144
|
|
|
145 /* This converts an MS-Windows clipboard format to its corresponding
|
|
|
146 Lisp symbol, or a Lisp integer otherwise. */
|
|
|
147 static Lisp_Object
|
|
|
148 ms_cf_to_symbol (UINT format)
|
|
|
149 {
|
|
|
150 switch (format)
|
|
|
151 {
|
|
|
152 case CF_TEXT: return QCF_TEXT;
|
|
|
153 case CF_BITMAP: return QCF_BITMAP;
|
|
|
154 case CF_METAFILEPICT: return QCF_METAFILEPICT;
|
|
|
155 case CF_SYLK: return QCF_SYLK;
|
|
|
156 case CF_DIF: return QCF_DIF;
|
|
|
157 case CF_TIFF: return QCF_TIFF;
|
|
|
158 case CF_OEMTEXT: return QCF_OEMTEXT;
|
|
|
159 case CF_DIB: return QCF_DIB;
|
|
|
160 #ifdef CF_DIBV5
|
|
|
161 case CF_DIBV5: return QCF_DIBV5;
|
|
|
162 #endif
|
|
|
163 case CF_PALETTE: return QCF_PALETTE;
|
|
|
164 case CF_PENDATA: return QCF_PENDATA;
|
|
|
165 case CF_RIFF: return QCF_RIFF;
|
|
|
166 case CF_WAVE: return QCF_WAVE;
|
|
|
167 case CF_UNICODETEXT: return QCF_UNICODETEXT;
|
|
|
168 case CF_ENHMETAFILE: return QCF_ENHMETAFILE;
|
|
|
169 case CF_HDROP: return QCF_HDROP;
|
|
|
170 case CF_LOCALE: return QCF_LOCALE;
|
|
|
171 case CF_OWNERDISPLAY: return QCF_OWNERDISPLAY;
|
|
|
172 case CF_DSPTEXT: return QCF_DSPTEXT;
|
|
|
173 case CF_DSPBITMAP: return QCF_DSPBITMAP;
|
|
|
174 case CF_DSPMETAFILEPICT: return QCF_DSPMETAFILEPICT;
|
|
|
175 case CF_DSPENHMETAFILE: return QCF_DSPENHMETAFILE;
|
|
|
176 default: return make_int ((int) format);
|
|
|
177 }
|
|
|
178 }
|
|
428
|
179
|
|
442
|
180 /* Test if the specified clipboard format is auto-released by the OS. If
|
|
|
181 not, we must remember the handle on Vhandle_alist, and free it if
|
|
|
182 the clipboard is emptied or if we set data with the same format. */
|
|
|
183 static int
|
|
|
184 cf_is_autofreed (UINT format)
|
|
|
185 {
|
|
|
186 switch (format)
|
|
|
187 {
|
|
|
188 /* This list comes from the SDK documentation */
|
|
|
189 case CF_DSPENHMETAFILE:
|
|
|
190 case CF_DSPMETAFILEPICT:
|
|
|
191 case CF_ENHMETAFILE:
|
|
|
192 case CF_METAFILEPICT:
|
|
|
193 case CF_BITMAP:
|
|
|
194 case CF_DSPBITMAP:
|
|
|
195 case CF_PALETTE:
|
|
|
196 case CF_DIB:
|
|
|
197 #ifdef CF_DIBV5
|
|
|
198 case CF_DIBV5:
|
|
|
199 #endif
|
|
|
200 case CF_DSPTEXT:
|
|
|
201 case CF_OEMTEXT:
|
|
|
202 case CF_TEXT:
|
|
|
203 case CF_UNICODETEXT:
|
|
|
204 return TRUE;
|
|
|
205
|
|
|
206 default:
|
|
|
207 return FALSE;
|
|
|
208 }
|
|
|
209 }
|
|
|
210
|
|
|
211 /* Do protocol to assert ourself as a selection owner.
|
|
|
212
|
|
|
213 Under mswindows, we:
|
|
|
214
|
|
|
215 * Only set the clipboard if (eq selection-name 'CLIPBOARD)
|
|
|
216
|
|
|
217 * Check if an X atom name has been passed. If so, convert to CF_TEXT
|
|
|
218 (or CF_UNICODETEXT) remembering to perform LF -> CR-LF conversion.
|
|
|
219
|
|
|
220 * Otherwise assume the data is formatted appropriately for the data type
|
|
|
221 that was passed.
|
|
|
222
|
|
|
223 Then set the clipboard as necessary.
|
|
|
224 */
|
|
|
225 static Lisp_Object
|
|
|
226 mswindows_own_selection (Lisp_Object selection_name,
|
|
|
227 Lisp_Object selection_value,
|
|
|
228 Lisp_Object how_to_add,
|
|
456
|
229 Lisp_Object selection_type,
|
|
|
230 int owned_p /* Not used */)
|
|
442
|
231 {
|
|
|
232 HGLOBAL hValue = NULL;
|
|
|
233 UINT cfType;
|
|
|
234 int is_X_type = FALSE;
|
|
|
235 Lisp_Object cfObject;
|
|
|
236 Lisp_Object data = Qnil;
|
|
|
237 int size;
|
|
|
238 void *src, *dst;
|
|
|
239 struct frame *f = NULL;
|
|
428
|
240
|
|
442
|
241 /* Only continue if we're trying to set the clipboard - mswindows doesn't
|
|
|
242 use the same selection model as X */
|
|
|
243 if (!EQ (selection_name, QCLIPBOARD))
|
|
|
244 return Qnil;
|
|
|
245
|
|
|
246 /* If this is one of the X-style atom name symbols, or NIL, convert it
|
|
|
247 as appropriate */
|
|
|
248 if (NILP (selection_type) || x_sym_p (selection_type))
|
|
|
249 {
|
|
|
250 /* Should COMPOUND_TEXT map to CF_UNICODETEXT? */
|
|
771
|
251 if (XEUNICODE_P)
|
|
|
252 {
|
|
|
253 cfType = CF_UNICODETEXT;
|
|
|
254 cfObject = QCF_UNICODETEXT;
|
|
|
255 }
|
|
|
256 else
|
|
|
257 {
|
|
|
258 cfType = CF_TEXT;
|
|
|
259 cfObject = QCF_TEXT;
|
|
|
260 }
|
|
442
|
261 is_X_type = TRUE;
|
|
|
262 }
|
|
|
263 else
|
|
|
264 {
|
|
|
265 cfType = symbol_to_ms_cf (selection_type);
|
|
|
266
|
|
|
267 /* Only continue if we can figure out a clipboard type */
|
|
|
268 if (!cfType)
|
|
|
269 return Qnil;
|
|
|
270
|
|
|
271 cfObject = selection_type;
|
|
|
272 }
|
|
|
273
|
|
|
274 /* Convert things appropriately */
|
|
|
275 data = select_convert_out (selection_name,
|
|
|
276 cfObject,
|
|
|
277 selection_value);
|
|
428
|
278
|
|
442
|
279 if (NILP (data))
|
|
|
280 return Qnil;
|
|
|
281
|
|
|
282 if (CONSP (data))
|
|
|
283 {
|
|
|
284 if (!EQ (XCAR (data), cfObject))
|
|
|
285 cfType = symbol_to_ms_cf (XCAR (data));
|
|
|
286
|
|
|
287 if (!cfType)
|
|
|
288 return Qnil;
|
|
|
289
|
|
|
290 data = XCDR (data);
|
|
|
291 }
|
|
|
292
|
|
|
293 /* We support opaque or string values, but we only mention string
|
|
771
|
294 values for now...
|
|
|
295 #### where do the opaque objects come from? currently they're not
|
|
|
296 allowed to be exported to the lisp level! */
|
|
442
|
297 if (!OPAQUEP (data)
|
|
|
298 && !STRINGP (data))
|
|
|
299 return Qnil;
|
|
|
300
|
|
|
301 /* Find the frame */
|
|
430
|
302 f = selected_frame ();
|
|
442
|
303
|
|
|
304 /* Open the clipboard */
|
|
430
|
305 if (!OpenClipboard (FRAME_MSWINDOWS_HANDLE (f)))
|
|
428
|
306 return Qnil;
|
|
|
307
|
|
771
|
308 /* Obtain the data */
|
|
|
309 if (OPAQUEP (data))
|
|
|
310 {
|
|
|
311 src = XOPAQUE_DATA (data);
|
|
|
312 size = XOPAQUE_SIZE (data);
|
|
|
313 }
|
|
|
314 else
|
|
|
315 /* we do NOT append a zero byte. we don't know whether we're dealing
|
|
|
316 with regular text, unicode text, binary data, etc. */
|
|
|
317 TO_EXTERNAL_FORMAT (LISP_STRING, data, ALLOCA, (src, size),
|
|
|
318 Qbinary);
|
|
|
319
|
|
442
|
320 /* Allocate memory */
|
|
|
321 hValue = GlobalAlloc (GMEM_DDESHARE | GMEM_MOVEABLE, size);
|
|
|
322
|
|
|
323 if (!hValue)
|
|
428
|
324 {
|
|
|
325 CloseClipboard ();
|
|
442
|
326
|
|
|
327 return Qnil;
|
|
|
328 }
|
|
|
329
|
|
|
330 dst = GlobalLock (hValue);
|
|
|
331
|
|
|
332 if (!dst)
|
|
|
333 {
|
|
|
334 GlobalFree (hValue);
|
|
|
335 CloseClipboard ();
|
|
|
336
|
|
428
|
337 return Qnil;
|
|
|
338 }
|
|
442
|
339
|
|
|
340 memcpy (dst, src, size);
|
|
|
341
|
|
|
342 GlobalUnlock (hValue);
|
|
|
343
|
|
|
344 /* Empty the clipboard if we're replacing everything */
|
|
|
345 if (NILP (how_to_add) || EQ (how_to_add, Qreplace_all))
|
|
428
|
346 {
|
|
771
|
347 if (!mswindows_empty_clipboard ())
|
|
428
|
348 {
|
|
442
|
349 CloseClipboard ();
|
|
|
350 GlobalFree (hValue);
|
|
|
351
|
|
|
352 return Qnil;
|
|
|
353 }
|
|
428
|
354 }
|
|
442
|
355
|
|
|
356 /* Append is currently handled in select.el; perhaps this should change,
|
|
|
357 but it only really makes sense for ordinary text in any case... */
|
|
|
358
|
|
|
359 SetClipboardData (cfType, hValue);
|
|
|
360
|
|
|
361 if (!cf_is_autofreed (cfType))
|
|
|
362 {
|
|
|
363 Lisp_Object alist_elt = Qnil, rest;
|
|
|
364 Lisp_Object cfType_int = make_int (cfType);
|
|
|
365
|
|
|
366 /* First check if there's an element in the alist for this type
|
|
|
367 already. */
|
|
|
368 alist_elt = assq_no_quit (cfType_int, Vhandle_alist);
|
|
|
369
|
|
|
370 /* Add an element to the alist */
|
|
|
371 Vhandle_alist = Fcons (Fcons (cfType_int, make_opaque_ptr (hValue)),
|
|
|
372 Vhandle_alist);
|
|
|
373
|
|
|
374 if (!NILP (alist_elt))
|
|
|
375 {
|
|
|
376 /* Free the original handle */
|
|
|
377 GlobalFree ((HGLOBAL) get_opaque_ptr (XCDR (alist_elt)));
|
|
|
378
|
|
771
|
379 /* Remove the original one (adding first makes life easier,
|
|
|
380 because we don't have to special case this being the
|
|
|
381 first element) */
|
|
442
|
382 for (rest = Vhandle_alist; !NILP (rest); rest = Fcdr (rest))
|
|
|
383 if (EQ (cfType_int, Fcar (XCDR (rest))))
|
|
|
384 {
|
|
|
385 XCDR (rest) = Fcdr (XCDR (rest));
|
|
|
386 break;
|
|
|
387 }
|
|
|
388 }
|
|
|
389 }
|
|
|
390
|
|
428
|
391 CloseClipboard ();
|
|
442
|
392
|
|
|
393 /* #### Should really return a time, though this is because of the
|
|
|
394 X model (by the looks of things) */
|
|
|
395 return Qnil;
|
|
428
|
396 }
|
|
|
397
|
|
|
398 static Lisp_Object
|
|
442
|
399 mswindows_available_selection_types (Lisp_Object selection_name)
|
|
|
400 {
|
|
|
401 Lisp_Object types = Qnil;
|
|
|
402 UINT format = 0;
|
|
|
403 struct frame *f = NULL;
|
|
|
404
|
|
|
405 if (!EQ (selection_name, QCLIPBOARD))
|
|
|
406 return Qnil;
|
|
|
407
|
|
|
408 /* Find the frame */
|
|
|
409 f = selected_frame ();
|
|
|
410
|
|
|
411 /* Open the clipboard */
|
|
|
412 if (!OpenClipboard (FRAME_MSWINDOWS_HANDLE (f)))
|
|
|
413 return Qnil;
|
|
|
414
|
|
771
|
415 /* [[ ajh - Should there be an unwind-protect handler around this?
|
|
|
416 It could (well it probably won't, but it's always better to
|
|
|
417 be safe) run out of memory and leave the clipboard open... ]]
|
|
|
418 -- xemacs in general makes no provisions for out-of-memory errors;
|
|
|
419 we will probably just crash. fixing this is a huge amount of work,
|
|
|
420 so don't bother protecting in this case. --ben */
|
|
442
|
421
|
|
|
422 while ((format = EnumClipboardFormats (format)))
|
|
|
423 types = Fcons (ms_cf_to_symbol (format), types);
|
|
|
424
|
|
|
425 /* Close it */
|
|
|
426 CloseClipboard ();
|
|
|
427
|
|
|
428 return types;
|
|
|
429 }
|
|
|
430
|
|
|
431 static Lisp_Object
|
|
|
432 mswindows_register_selection_data_type (Lisp_Object type_name)
|
|
428
|
433 {
|
|
442
|
434 /* Type already checked in select.c */
|
|
771
|
435 Extbyte *nameext;
|
|
|
436 UINT format;
|
|
442
|
437
|
|
771
|
438 LISP_STRING_TO_TSTR (type_name, nameext);
|
|
|
439 format = qxeRegisterClipboardFormat (nameext);
|
|
442
|
440
|
|
|
441 if (format)
|
|
|
442 return make_int ((int) format);
|
|
|
443 else
|
|
|
444 return Qnil;
|
|
|
445 }
|
|
|
446
|
|
|
447 static Lisp_Object
|
|
|
448 mswindows_selection_data_type_name (Lisp_Object type_id)
|
|
|
449 {
|
|
771
|
450 UINT format;
|
|
|
451 Extbyte *namebuf;
|
|
|
452 int numchars;
|
|
442
|
453
|
|
|
454 /* If it's an integer, convert to a symbol if appropriate */
|
|
|
455 if (INTP (type_id))
|
|
|
456 type_id = ms_cf_to_symbol (XINT (type_id));
|
|
|
457
|
|
|
458 /* If this is a symbol, return it */
|
|
|
459 if (SYMBOLP (type_id))
|
|
|
460 return type_id;
|
|
|
461
|
|
|
462 /* Find the format code */
|
|
|
463 format = symbol_to_ms_cf (type_id);
|
|
|
464
|
|
|
465 if (!format)
|
|
|
466 return Qnil;
|
|
|
467
|
|
|
468 /* Microsoft, stupid Microsoft */
|
|
771
|
469 {
|
|
|
470 int size, new_size = 128;
|
|
|
471 do
|
|
|
472 {
|
|
|
473 size = new_size;
|
|
|
474 new_size *= 2;
|
|
|
475 namebuf = alloca_extbytes (size * XETCHAR_SIZE);
|
|
|
476 numchars = qxeGetClipboardFormatName (format, namebuf, size);
|
|
|
477 }
|
|
|
478 while (numchars >= size - 1);
|
|
|
479 }
|
|
442
|
480
|
|
|
481 if (numchars)
|
|
771
|
482 return build_tstr_string (namebuf);
|
|
428
|
483
|
|
|
484 return Qnil;
|
|
|
485 }
|
|
|
486
|
|
442
|
487 static Lisp_Object
|
|
|
488 mswindows_get_foreign_selection (Lisp_Object selection_symbol,
|
|
|
489 Lisp_Object target_type)
|
|
428
|
490 {
|
|
442
|
491 HGLOBAL hValue = NULL;
|
|
|
492 UINT cfType;
|
|
|
493 Lisp_Object cfObject = Qnil, ret = Qnil, value = Qnil;
|
|
|
494 int is_X_type = FALSE;
|
|
|
495 int size;
|
|
|
496 void *data;
|
|
|
497 struct frame *f = NULL;
|
|
|
498 struct gcpro gcpro1;
|
|
|
499
|
|
|
500 /* Only continue if we're trying to read the clipboard - mswindows doesn't
|
|
|
501 use the same selection model as X */
|
|
|
502 if (!EQ (selection_symbol, QCLIPBOARD))
|
|
|
503 return Qnil;
|
|
428
|
504
|
|
442
|
505 /* If this is one of the X-style atom name symbols, or NIL, convert it
|
|
|
506 as appropriate */
|
|
|
507 if (NILP (target_type) || x_sym_p (target_type))
|
|
|
508 {
|
|
|
509 /* Should COMPOUND_TEXT map to CF_UNICODETEXT? */
|
|
771
|
510 if (XEUNICODE_P)
|
|
|
511 {
|
|
|
512 cfType = CF_UNICODETEXT;
|
|
|
513 cfObject = QCF_UNICODETEXT;
|
|
|
514 }
|
|
|
515 else
|
|
|
516 {
|
|
|
517 cfType = CF_TEXT;
|
|
|
518 cfObject = QCF_TEXT;
|
|
|
519 }
|
|
442
|
520 is_X_type = TRUE;
|
|
|
521 }
|
|
|
522 else
|
|
|
523 {
|
|
|
524 cfType = symbol_to_ms_cf (target_type);
|
|
|
525
|
|
|
526 /* Only continue if we can figure out a clipboard type */
|
|
|
527 if (!cfType)
|
|
|
528 return Qnil;
|
|
|
529
|
|
|
530 cfObject = ms_cf_to_symbol (cfType);
|
|
|
531 }
|
|
|
532
|
|
|
533 /* Find the frame */
|
|
|
534 f = selected_frame ();
|
|
|
535
|
|
|
536 /* Open the clipboard */
|
|
|
537 if (!OpenClipboard (FRAME_MSWINDOWS_HANDLE (f)))
|
|
428
|
538 return Qnil;
|
|
|
539
|
|
442
|
540 /* Read the clipboard */
|
|
|
541 hValue = GetClipboardData (cfType);
|
|
|
542
|
|
|
543 if (!hValue)
|
|
428
|
544 {
|
|
442
|
545 CloseClipboard ();
|
|
428
|
546
|
|
442
|
547 return Qnil;
|
|
|
548 }
|
|
428
|
549
|
|
442
|
550 /* Find the data */
|
|
|
551 size = GlobalSize (hValue);
|
|
|
552 data = GlobalLock (hValue);
|
|
428
|
553
|
|
442
|
554 if (!data)
|
|
|
555 {
|
|
|
556 CloseClipboard ();
|
|
|
557
|
|
|
558 return Qnil;
|
|
428
|
559 }
|
|
|
560
|
|
442
|
561 /* Place it in a Lisp string */
|
|
771
|
562 ret = make_ext_string ((Extbyte *) data, size, Qbinary);
|
|
442
|
563
|
|
|
564 GlobalUnlock (data);
|
|
428
|
565 CloseClipboard ();
|
|
|
566
|
|
442
|
567 GCPRO1 (ret);
|
|
428
|
568
|
|
442
|
569 /* Convert this to the appropriate type. If we can't find anything,
|
|
|
570 then we return a cons of the form (DATA-TYPE . STRING), where the
|
|
|
571 string contains the raw binary data. */
|
|
|
572 value = select_convert_in (selection_symbol,
|
|
|
573 cfObject,
|
|
|
574 ret);
|
|
428
|
575
|
|
442
|
576 UNGCPRO;
|
|
430
|
577
|
|
442
|
578 if (NILP (value))
|
|
|
579 return Fcons (cfObject, ret);
|
|
|
580 else
|
|
|
581 return value;
|
|
428
|
582 }
|
|
|
583
|
|
|
584 static void
|
|
|
585 mswindows_disown_selection (Lisp_Object selection, Lisp_Object timeval)
|
|
|
586 {
|
|
|
587 if (EQ (selection, QCLIPBOARD))
|
|
442
|
588 {
|
|
|
589 BOOL success = OpenClipboard (NULL);
|
|
|
590 if (success)
|
|
|
591 {
|
|
771
|
592 /* the caller calls handle_selection_clear(). */
|
|
|
593 success = mswindows_empty_clipboard ();
|
|
442
|
594 /* Close it regardless of whether empty worked. */
|
|
|
595 if (!CloseClipboard ())
|
|
|
596 success = FALSE;
|
|
|
597 }
|
|
|
598
|
|
|
599 /* #### return success ? Qt : Qnil; */
|
|
|
600 }
|
|
|
601 }
|
|
|
602
|
|
|
603 void
|
|
|
604 mswindows_destroy_selection (Lisp_Object selection)
|
|
|
605 {
|
|
|
606 /* Do nothing if this isn't for the clipboard. */
|
|
|
607 if (!EQ (selection, QCLIPBOARD))
|
|
|
608 return;
|
|
|
609
|
|
|
610 /* Right. We need to delete everything in Vhandle_alist. */
|
|
|
611 {
|
|
|
612 LIST_LOOP_2 (elt, Vhandle_alist)
|
|
|
613 GlobalFree ((HGLOBAL) get_opaque_ptr (XCDR (elt)));
|
|
|
614 }
|
|
|
615
|
|
|
616 Vhandle_alist = Qnil;
|
|
|
617 }
|
|
|
618
|
|
|
619 static Lisp_Object
|
|
|
620 mswindows_selection_exists_p (Lisp_Object selection,
|
|
|
621 Lisp_Object selection_type)
|
|
|
622 {
|
|
|
623 /* We used to be picky about the format, but now we support anything. */
|
|
|
624 if (EQ (selection, QCLIPBOARD))
|
|
|
625 {
|
|
|
626 if (NILP (selection_type))
|
|
|
627 return CountClipboardFormats () ? Qt : Qnil;
|
|
|
628 else
|
|
|
629 return IsClipboardFormatAvailable (symbol_to_ms_cf (selection_type))
|
|
|
630 ? Qt : Qnil;
|
|
|
631 }
|
|
|
632 else
|
|
|
633 return Qnil;
|
|
428
|
634 }
|
|
|
635
|
|
|
636
|
|
|
637 /************************************************************************/
|
|
|
638 /* initialization */
|
|
|
639 /************************************************************************/
|
|
|
640
|
|
|
641 void
|
|
|
642 console_type_create_select_mswindows (void)
|
|
|
643 {
|
|
|
644 CONSOLE_HAS_METHOD (mswindows, own_selection);
|
|
|
645 CONSOLE_HAS_METHOD (mswindows, disown_selection);
|
|
442
|
646 CONSOLE_HAS_METHOD (mswindows, selection_exists_p);
|
|
428
|
647 CONSOLE_HAS_METHOD (mswindows, get_foreign_selection);
|
|
442
|
648 CONSOLE_HAS_METHOD (mswindows, available_selection_types);
|
|
|
649 CONSOLE_HAS_METHOD (mswindows, register_selection_data_type);
|
|
|
650 CONSOLE_HAS_METHOD (mswindows, selection_data_type_name);
|
|
428
|
651 }
|
|
|
652
|
|
|
653 void
|
|
|
654 syms_of_select_mswindows (void)
|
|
|
655 {
|
|
|
656 }
|
|
|
657
|
|
|
658 void
|
|
|
659 vars_of_select_mswindows (void)
|
|
|
660 {
|
|
442
|
661 /* Initialise Vhandle_alist */
|
|
|
662 Vhandle_alist = Qnil;
|
|
|
663 staticpro (&Vhandle_alist);
|
|
428
|
664 }
|
|
771
|
665
|
|
|
666 void
|
|
|
667 init_select_mswindows (void)
|
|
|
668 {
|
|
|
669 /* Reinitialise Vhandle_alist */
|
|
|
670 /* #### Why do we need to do this? Somehow I added this. --ben */
|
|
|
671 Vhandle_alist = Qnil;
|
|
|
672 }
|
