1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
|
/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <string.h>
#include "gdkproperty.h"
#include "gdkselection.h"
#include "gdkprivate-win32.h"
/* We emulate the GDK_SELECTION window properties by storing
* it's data in a per-window hashtable.
*/
typedef struct {
guchar *data;
gint length;
gint format;
GdkAtom type;
} GdkSelProp;
static GHashTable *sel_prop_table = NULL;
void
_gdk_win32_selection_init (void)
{
if (sel_prop_table == NULL)
sel_prop_table = g_hash_table_new (g_int_hash, g_int_equal);
}
void
_gdk_selection_property_store (GdkWindow *owner,
GdkAtom type,
gint format,
guchar *data,
gint length)
{
GdkSelProp *prop;
prop = g_hash_table_lookup (sel_prop_table, &GDK_WINDOW_HWND (owner));
if (prop != NULL)
{
g_free (prop->data);
g_hash_table_remove (sel_prop_table, &GDK_WINDOW_HWND (owner));
}
prop = g_new (GdkSelProp, 1);
prop->data = data;
prop->length = length;
prop->format = format;
prop->type = type;
g_hash_table_insert (sel_prop_table, &GDK_WINDOW_HWND (owner), prop);
}
gboolean
gdk_selection_owner_set (GdkWindow *owner,
GdkAtom selection,
guint32 time,
gboolean send_event)
{
gchar *sel_name;
HWND xwindow;
GDK_NOTE (MISC,
(sel_name = gdk_atom_name (selection),
g_print ("gdk_selection_owner_set: %#x %#x (%s)\n",
(owner ? (guint) GDK_WINDOW_HWND (owner) : 0),
(guint) selection, sel_name),
g_free (sel_name)));
if (selection != gdk_clipboard_atom)
{
if (!owner)
return FALSE;
_gdk_selection_property_store (owner, selection, 0, 0, 0);
return TRUE;
}
if (owner != NULL)
{
if (GDK_WINDOW_DESTROYED (owner))
return FALSE;
xwindow = GDK_WINDOW_HWND (owner);
}
else
xwindow = NULL;
GDK_NOTE (MISC, g_print ("...OpenClipboard(%#x)\n", (guint) xwindow));
if (!OpenClipboard (xwindow))
{
WIN32_API_FAILED ("OpenClipboard");
return FALSE;
}
GDK_NOTE (MISC, g_print ("...EmptyClipboard()\n"));
if (!EmptyClipboard ())
{
WIN32_API_FAILED ("EmptyClipboard");
CloseClipboard ();
return FALSE;
}
#if 0
/* No delayed rendering */
if (xwindow != NULL)
SetClipboardData (CF_TEXT, NULL);
#endif
GDK_NOTE (MISC, g_print ("...CloseClipboard()\n"));
if (!CloseClipboard ())
{
WIN32_API_FAILED ("CloseClipboard");
return FALSE;
}
if (owner != NULL)
{
/* Send ourselves an ersatz selection request message so that
* gdk_property_change will be called to store the clipboard data.
*/
SendMessage (xwindow, gdk_selection_request_msg,
GPOINTER_TO_UINT (GDK_ATOM_TO_POINTER (selection)), 0);
}
return TRUE;
}
/* callback for g_hash_table_for_each */
typedef struct {
GdkAtom atom;
GdkNativeWindow hwnd;
} SelectionAndHwnd;
static void
window_from_selection (gpointer key,
gpointer value,
gpointer user_data)
{
GdkSelProp *selprop = (GdkSelProp *)value;
SelectionAndHwnd *sah = (SelectionAndHwnd *) user_data;
if (selprop->type == sah->atom)
sah->hwnd = *(GdkNativeWindow*) key;
}
GdkWindow*
gdk_selection_owner_get (GdkAtom selection)
{
GdkWindow *window;
gchar *sel_name;
#if 0
/* XXX Hmm, gtk selections seem to work best with this. This causes
* gtk to always get the clipboard contents from Windows, and not
* from the editable's own stashed-away copy.
*/
return NULL;
#else
/* HB: The above is no longer true with recent changes to get
* inter-app drag&drop working ...
*/
if (selection != gdk_clipboard_atom)
{
SelectionAndHwnd sah;
sah.atom = selection;
sah.hwnd = 0;
g_hash_table_foreach (sel_prop_table, window_from_selection, &sah);
window = gdk_win32_handle_table_lookup (sah.hwnd);
}
else
window = gdk_win32_handle_table_lookup ((GdkNativeWindow) GetClipboardOwner ());
#endif
GDK_NOTE (MISC,
(sel_name = gdk_atom_name (selection),
g_print ("gdk_selection_owner_get: %#x (%s) = %#x\n",
(guint) selection, sel_name,
(window ? (guint) GDK_WINDOW_HWND (window) : 0)),
g_free (sel_name)));
return window;
}
void
gdk_selection_convert (GdkWindow *requestor,
GdkAtom selection,
GdkAtom target,
guint32 time)
{
HGLOBAL hdata;
guchar *ptr, *data, *datap, *p;
guint i, length, slength;
gchar *sel_name, *tgt_name;
g_return_if_fail (requestor != NULL);
if (GDK_WINDOW_DESTROYED (requestor))
return;
GDK_NOTE (MISC,
(sel_name = gdk_atom_name (selection),
tgt_name = gdk_atom_name (target),
g_print ("gdk_selection_convert: %#x %#x (%s) %#x (%s)\n",
(guint) GDK_WINDOW_HWND (requestor),
(guint) selection, sel_name,
(guint) target, tgt_name),
g_free (sel_name),
g_free (tgt_name)));
if (selection == gdk_clipboard_atom)
{
/* Converting the CLIPBOARD selection means he wants the
* contents of the clipboard. Get the clipboard data,
* and store it for later.
*/
GDK_NOTE (MISC, g_print ("...OpenClipboard(%#x)\n",
(guint) GDK_WINDOW_HWND (requestor)));
if (!OpenClipboard (GDK_WINDOW_HWND (requestor)))
{
WIN32_API_FAILED ("OpenClipboard");
return;
}
GDK_NOTE (MISC, g_print ("...GetClipboardData(CF_TEXT)\n"));
if ((hdata = GetClipboardData (CF_TEXT)) != NULL)
{
if ((ptr = GlobalLock (hdata)) != NULL)
{
length = GlobalSize (hdata);
GDK_NOTE (MISC, g_print ("...got data: %d bytes: %.10s\n",
length, ptr));
slength = 0;
p = ptr;
for (i = 0; i < length; i++)
{
if (*p == '\0')
break;
else if (*p != '\r')
slength++;
p++;
}
data = datap = g_malloc (slength + 1);
p = ptr;
for (i = 0; i < length; i++)
{
if (*p == '\0')
break;
else if (*p != '\r')
*datap++ = *p;
p++;
}
*datap++ = '\0';
_gdk_selection_property_store (requestor, GDK_TARGET_STRING, 8,
data, strlen (data) + 1);
GlobalUnlock (hdata);
}
}
GDK_NOTE (MISC, g_print ("...CloseClipboard()\n"));
CloseClipboard ();
/* Send ourselves an ersatz selection notify message so that we actually
* fetch the data.
*/
SendMessage (GDK_WINDOW_HWND (requestor), gdk_selection_notify_msg,
GPOINTER_TO_UINT (GDK_ATOM_TO_POINTER (selection)),
GPOINTER_TO_UINT (GDK_ATOM_TO_POINTER (target)));
}
else if (selection == gdk_win32_dropfiles_atom)
{
/* This means he wants the names of the dropped files.
* gdk_dropfiles_filter already has stored the text/uri-list
* data, tempoarily on gdk_root_parent's selection "property".
*/
GdkSelProp *prop;
prop = g_hash_table_lookup (sel_prop_table,
&GDK_WINDOW_HWND (_gdk_parent_root));
if (prop != NULL)
{
g_hash_table_remove (sel_prop_table,
&GDK_WINDOW_HWND (_gdk_parent_root));
_gdk_selection_property_store (requestor, prop->type, prop->format,
prop->data, prop->length);
g_free (prop);
SendMessage (GDK_WINDOW_HWND (requestor), gdk_selection_notify_msg,
GPOINTER_TO_UINT (GDK_ATOM_TO_POINTER (selection)),
GPOINTER_TO_UINT (GDK_ATOM_TO_POINTER (target)));
}
}
else
{
g_warning ("gdk_selection_convert: General case not implemented");
}
}
gint
gdk_selection_property_get (GdkWindow *requestor,
guchar **data,
GdkAtom *ret_type,
gint *ret_format)
{
GdkSelProp *prop;
g_return_val_if_fail (requestor != NULL, 0);
g_return_val_if_fail (GDK_IS_WINDOW (requestor), 0);
if (GDK_WINDOW_DESTROYED (requestor))
return 0;
GDK_NOTE (MISC, g_print ("gdk_selection_property_get: %#x\n",
(guint) GDK_WINDOW_HWND (requestor)));
prop = g_hash_table_lookup (sel_prop_table, &GDK_WINDOW_HWND (requestor));
if (prop == NULL)
{
*data = NULL;
return 0;
}
*data = g_malloc (prop->length);
if (prop->length > 0)
memmove (*data, prop->data, prop->length);
if (ret_type)
*ret_type = prop->type;
if (ret_format)
*ret_format = prop->format;
return prop->length;
}
void
_gdk_selection_property_delete (GdkWindow *window)
{
GdkSelProp *prop;
prop = g_hash_table_lookup (sel_prop_table, &GDK_WINDOW_HWND (window));
if (prop != NULL)
{
g_free (prop->data);
g_hash_table_remove (sel_prop_table, &GDK_WINDOW_HWND (window));
}
else
g_warning ("huh?");
}
void
gdk_selection_send_notify (guint32 requestor,
GdkAtom selection,
GdkAtom target,
GdkAtom property,
guint32 time)
{
gchar *sel_name, *tgt_name, *prop_name;
GDK_NOTE (MISC,
(sel_name = gdk_atom_name (selection),
tgt_name = gdk_atom_name (target),
prop_name = gdk_atom_name (property),
g_print ("gdk_selection_send_notify: %#x %#x (%s) %#x (%s) %#x (%s)\n",
requestor,
(guint) selection, sel_name,
(guint) target, tgt_name,
(guint) property, prop_name),
g_free (sel_name),
g_free (tgt_name),
g_free (prop_name)));
/* Send ourselves a selection clear message so that gtk thinks we don't
* have the selection, and will claim it anew when needed, and
* we thus get a chance to store data in the Windows clipboard.
* Otherwise, if a gtkeditable does a copy to clipboard several times
* only the first one actually gets copied to the Windows clipboard,
* as only he first one causes a call to gdk_property_change.
*
* Hmm, there is something fishy with this. Cut and paste inside the
* same app didn't work, the gtkeditable immediately forgot the
* clipboard contents in gtk_editable_selection_clear as a result of
* this message. OTOH, when I changed gdk_selection_owner_get to
* always return NULL, it works. Sigh.
*/
SendMessage ((HWND) requestor,
gdk_selection_clear_msg,
GPOINTER_TO_UINT (GDK_ATOM_TO_POINTER (selection)),
GPOINTER_TO_UINT (GDK_ATOM_TO_POINTER (target)));
}
gint
gdk_text_property_to_text_list (GdkAtom encoding,
gint format,
const guchar *text,
gint length,
gchar ***list)
{
GDK_NOTE (MISC,
g_print ("gdk_text_property_to_text_list not implemented\n"));
return 0;
}
void
gdk_free_text_list (gchar **list)
{
g_return_if_fail (list != NULL);
/* ??? */
}
gint
gdk_string_to_compound_text (const gchar *str,
GdkAtom *encoding,
gint *format,
guchar **ctext,
gint *length)
{
g_warning ("gdk_string_to_compound_text: Not implemented");
return 0;
}
void
gdk_free_compound_text (guchar *ctext)
{
g_warning ("gdk_free_compound_text: Not implemented");
}
/* These are lifted from gdkselection-x11.c, just to get GTK+ to build.
* These functions probably don't make much sense at all in Windows.
*/
/* FIXME */
static gint
make_list (const gchar *text,
gint length,
gboolean latin1,
gchar ***list)
{
GSList *strings = NULL;
gint n_strings = 0;
gint i;
const gchar *p = text;
const gchar *q;
GSList *tmp_list;
GError *error = NULL;
while (p < text + length)
{
gchar *str;
q = p;
while (*q && q < text + length)
q++;
if (latin1)
{
str = g_convert (p, q - p,
"UTF-8", "ISO-8859-1",
NULL, NULL, &error);
if (!str)
{
g_warning ("Error converting selection from STRING: %s",
error->message);
g_error_free (error);
}
}
else
str = g_strndup (p, q - p);
if (str)
{
strings = g_slist_prepend (strings, str);
n_strings++;
}
p = q + 1;
}
if (list)
*list = g_new (gchar *, n_strings + 1);
(*list)[n_strings] = NULL;
i = n_strings;
tmp_list = strings;
while (tmp_list)
{
if (list)
(*list)[--i] = tmp_list->data;
else
g_free (tmp_list->data);
tmp_list = tmp_list->next;
}
g_slist_free (strings);
return n_strings;
}
/**
* gdk_text_property_to_utf8_list:
* @encoding: an atom representing the encoding of the text
* @format: the format of the property
* @text: the text to convert
* @length: the length of @text, in bytes
* @list: location to store the list of strings or %NULL. The
* list should be freed with g_strfreev().
*
* Convert a text property in the giving encoding to
* a list of UTF-8 strings.
*
* Return value: the number of strings in the resulting
* list.
**/
gint
gdk_text_property_to_utf8_list (GdkAtom encoding,
gint format,
const guchar *text,
gint length,
gchar ***list)
{
g_return_val_if_fail (text != NULL, 0);
g_return_val_if_fail (length >= 0, 0);
if (encoding == GDK_TARGET_STRING)
{
return make_list ((gchar *)text, length, TRUE, list);
}
else if (encoding == gdk_atom_intern ("UTF8_STRING", FALSE))
{
return make_list ((gchar *)text, length, FALSE, list);
}
else
{
gchar **local_list;
gint local_count;
gint i;
gchar *charset = NULL;
gboolean need_conversion= g_get_charset (&charset);
gint count = 0;
GError *error = NULL;
/* Probably COMPOUND text, we fall back to Xlib routines
*/
local_count = gdk_text_property_to_text_list (encoding,
format,
text,
length,
&local_list);
if (list)
*list = g_new (gchar *, local_count + 1);
for (i=0; i<local_count; i++)
{
/* list contains stuff in our default encoding
*/
if (need_conversion)
{
gchar *utf = g_convert (local_list[i], -1,
"UTF-8", charset,
NULL, NULL, &error);
if (utf)
{
if (list)
(*list)[count++] = utf;
else
g_free (utf);
}
else
{
g_warning ("Error converting to UTF-8 from '%s': %s",
charset, error->message);
g_error_free (error);
error = NULL;
}
}
else
{
if (list)
(*list)[count++] = g_strdup (local_list[i]);
}
}
gdk_free_text_list (local_list);
(*list)[count] = NULL;
return count;
}
}
/* The specifications for COMPOUND_TEXT and STRING specify that C0 and
* C1 are not allowed except for \n and \t, however the X conversions
* routines for COMPOUND_TEXT only enforce this in one direction,
* causing cut-and-paste of \r and \r\n separated text to fail.
* This routine strips out all non-allowed C0 and C1 characters
* from the input string and also canonicalizes \r, \r\n, and \n\r to \n
*/
static gchar *
sanitize_utf8 (const gchar *src)
{
gint len = strlen (src);
GString *result = g_string_sized_new (len);
const gchar *p = src;
while (*p)
{
if (*p == '\r' || *p == '\n')
{
p++;
if (*p == '\r' || *p == '\n')
p++;
g_string_append_c (result, '\n');
}
else
{
gunichar ch = g_utf8_get_char (p);
char buf[7];
gint buflen;
if (!((ch < 0x20 && ch != '\t') || (ch >= 0x7f && ch < 0xa0)))
{
buflen = g_unichar_to_utf8 (ch, buf);
g_string_append_len (result, buf, buflen);
}
p = g_utf8_next_char (p);
}
}
return g_string_free (result, FALSE);
}
/**
* gdk_utf8_to_string_target:
* @str: a UTF-8 string
*
* Convert an UTF-8 string into the best possible representation
* as a STRING. The representation of characters not in STRING
* is not specified; it may be as pseudo-escape sequences
* \x{ABCD}, or it may be in some other form of approximation.
*
* Return value: the newly allocated string, or %NULL if the
* conversion failed. (It should not fail for
* any properly formed UTF-8 string.)
**/
gchar *
gdk_utf8_to_string_target (const gchar *str)
{
GError *error = NULL;
gchar *tmp_str = sanitize_utf8 (str);
gchar *result = g_convert_with_fallback (tmp_str, -1,
"ISO-8859-1", "UTF-8",
NULL, NULL, NULL, &error);
if (!result)
{
g_warning ("Error converting from UTF-8 to STRING: %s",
error->message);
g_error_free (error);
}
g_free (tmp_str);
return result;
}
/**
* gdk_utf8_to_compound_text:
* @str: a UTF-8 string
* @encoding: location to store resulting encoding
* @format: location to store format of the result
* @ctext: location to store the data of the result
* @length: location to store the length of the data
* stored in @ctext
*
* Convert from UTF-8 to compound text.
*
* Return value: %TRUE if the conversion succeeded, otherwise
* false.
**/
gboolean
gdk_utf8_to_compound_text (const gchar *str,
GdkAtom *encoding,
gint *format,
guchar **ctext,
gint *length)
{
gboolean need_conversion;
gchar *charset;
gchar *locale_str, *tmp_str;
GError *error = NULL;
gboolean result;
g_return_val_if_fail (str != NULL, FALSE);
need_conversion = g_get_charset (&charset);
tmp_str = sanitize_utf8 (str);
if (need_conversion)
{
locale_str = g_convert_with_fallback (tmp_str, -1,
charset, "UTF-8",
NULL, NULL, NULL, &error);
g_free (tmp_str);
if (!locale_str)
{
g_warning ("Error converting from UTF-8 to '%s': %s",
charset, error->message);
g_error_free (error);
if (encoding)
*encoding = GDK_NONE;
if (format)
*format = GPOINTER_TO_UINT (GDK_ATOM_TO_POINTER (GDK_NONE));
if (ctext)
*ctext = NULL;
if (length)
*length = 0;
return FALSE;
}
}
else
locale_str = tmp_str;
result = gdk_string_to_compound_text (locale_str,
encoding, format, ctext, length);
g_free (locale_str);
return result;
}
|