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83df96d6 | 1 | ///////////////////////////////////////////////////////////////////////////// |
e4db172a | 2 | // Name: src/x11/clipbrd.cpp |
83df96d6 | 3 | // Purpose: Clipboard functionality |
9691c806 | 4 | // Author: Robert Roebling |
e4db172a | 5 | // Created: |
83df96d6 | 6 | // RCS-ID: $Id$ |
9691c806 | 7 | // Copyright: (c) Robert Roebling |
e4db172a | 8 | // Licence: wxWindows licence |
83df96d6 JS |
9 | ///////////////////////////////////////////////////////////////////////////// |
10 | ||
e4db172a WS |
11 | // for compilers that support precompilation, includes "wx.h". |
12 | #include "wx/wxprec.h" | |
83df96d6 JS |
13 | |
14 | #if wxUSE_CLIPBOARD | |
15 | ||
e4db172a WS |
16 | #include "wx/clipbrd.h" |
17 | ||
18 | #ifndef WX_PRECOMP | |
19 | #include "wx/log.h" | |
de6185e2 | 20 | #include "wx/utils.h" |
28f92d74 | 21 | #include "wx/dataobj.h" |
e4db172a WS |
22 | #endif |
23 | ||
9691c806 RR |
24 | #include "wx/x11/private.h" |
25 | ||
26 | //----------------------------------------------------------------------------- | |
27 | // data | |
28 | //----------------------------------------------------------------------------- | |
29 | ||
70b8ab77 | 30 | #if !wxUSE_NANOX |
9691c806 RR |
31 | Atom g_clipboardAtom = 0; |
32 | Atom g_targetsAtom = 0; | |
70b8ab77 | 33 | #endif |
83df96d6 | 34 | |
0b575029 | 35 | #ifdef __WXDEBUG__ |
9691c806 RR |
36 | // the trace mask we use with wxLogTrace() - call |
37 | // wxLog::AddTraceMask(TRACE_CLIPBOARD) to enable the trace messages from here | |
38 | // (there will be a *lot* of them!) | |
39 | static const wxChar *TRACE_CLIPBOARD = _T("clipboard"); | |
0b575029 | 40 | #endif // __WXDEBUG__ |
83df96d6 | 41 | |
9691c806 RR |
42 | //----------------------------------------------------------------------------- |
43 | // reminder | |
44 | //----------------------------------------------------------------------------- | |
83df96d6 | 45 | |
9691c806 RR |
46 | /* The contents of a selection are returned in a GtkSelectionData |
47 | structure. selection/target identify the request. | |
48 | type specifies the type of the return; if length < 0, and | |
49 | the data should be ignored. This structure has object semantics - | |
50 | no fields should be modified directly, they should not be created | |
51 | directly, and pointers to them should not be stored beyond the duration of | |
52 | a callback. (If the last is changed, we'll need to add reference | |
53 | counting) | |
83df96d6 | 54 | |
9691c806 | 55 | struct _GtkSelectionData |
83df96d6 | 56 | { |
9691c806 RR |
57 | GdkAtom selection; |
58 | GdkAtom target; | |
59 | GdkAtom type; | |
60 | gint format; | |
61 | guchar *data; | |
62 | gint length; | |
63 | }; | |
64 | ||
65 | */ | |
66 | ||
67 | //----------------------------------------------------------------------------- | |
68 | // "selection_received" for targets | |
69 | //----------------------------------------------------------------------------- | |
70 | ||
71 | #if 0 | |
83df96d6 | 72 | |
9691c806 RR |
73 | static void |
74 | targets_selection_received( GtkWidget *WXUNUSED(widget), | |
75 | GtkSelectionData *selection_data, | |
76 | #if (GTK_MINOR_VERSION > 0) | |
77 | guint32 WXUNUSED(time), | |
78 | #endif | |
79 | wxClipboard *clipboard ) | |
83df96d6 | 80 | { |
9691c806 | 81 | if ( wxTheClipboard && selection_data->length > 0 ) |
83df96d6 | 82 | { |
9691c806 RR |
83 | /* make sure we got the data in the correct form */ |
84 | GdkAtom type = selection_data->type; | |
85 | if ( type != GDK_SELECTION_TYPE_ATOM ) | |
86 | { | |
87 | if ( strcmp(gdk_atom_name(type), "TARGETS") ) | |
88 | { | |
89 | wxLogTrace( TRACE_CLIPBOARD, | |
90 | _T("got unsupported clipboard target") ); | |
83df96d6 | 91 | |
de6185e2 | 92 | clipboard->m_waiting = false; |
9691c806 RR |
93 | return; |
94 | } | |
95 | } | |
83df96d6 | 96 | |
9691c806 RR |
97 | #ifdef __WXDEBUG__ |
98 | wxDataFormat clip( selection_data->selection ); | |
99 | wxLogTrace( TRACE_CLIPBOARD, | |
100 | wxT("selection received for targets, clipboard %s"), | |
101 | clip.GetId().c_str() ); | |
102 | #endif // __WXDEBUG__ | |
83df96d6 | 103 | |
9691c806 RR |
104 | // the atoms we received, holding a list of targets (= formats) |
105 | GdkAtom *atoms = (GdkAtom *)selection_data->data; | |
83df96d6 | 106 | |
9691c806 RR |
107 | for (unsigned int i=0; i<selection_data->length/sizeof(GdkAtom); i++) |
108 | { | |
109 | wxDataFormat format( atoms[i] ); | |
83df96d6 | 110 | |
9691c806 RR |
111 | wxLogTrace( TRACE_CLIPBOARD, |
112 | wxT("selection received for targets, format %s"), | |
113 | format.GetId().c_str() ); | |
83df96d6 | 114 | |
9691c806 RR |
115 | if (format == clipboard->m_targetRequested) |
116 | { | |
de6185e2 | 117 | clipboard->m_waiting = false; |
e4db172a | 118 | clipboard->m_formatSupported = true; |
9691c806 RR |
119 | return; |
120 | } | |
121 | } | |
122 | } | |
83df96d6 | 123 | |
de6185e2 | 124 | clipboard->m_waiting = false; |
9691c806 | 125 | } |
83df96d6 | 126 | |
9691c806 RR |
127 | //----------------------------------------------------------------------------- |
128 | // "selection_received" for the actual data | |
129 | //----------------------------------------------------------------------------- | |
83df96d6 | 130 | |
9691c806 RR |
131 | static void |
132 | selection_received( GtkWidget *WXUNUSED(widget), | |
133 | GtkSelectionData *selection_data, | |
134 | #if (GTK_MINOR_VERSION > 0) | |
135 | guint32 WXUNUSED(time), | |
136 | #endif | |
137 | wxClipboard *clipboard ) | |
138 | { | |
139 | if (!wxTheClipboard) | |
140 | { | |
de6185e2 | 141 | clipboard->m_waiting = false; |
9691c806 RR |
142 | return; |
143 | } | |
83df96d6 | 144 | |
9691c806 | 145 | wxDataObject *data_object = clipboard->m_receivedData; |
83df96d6 | 146 | |
9691c806 RR |
147 | if (!data_object) |
148 | { | |
de6185e2 | 149 | clipboard->m_waiting = false; |
9691c806 RR |
150 | return; |
151 | } | |
83df96d6 | 152 | |
9691c806 RR |
153 | if (selection_data->length <= 0) |
154 | { | |
de6185e2 | 155 | clipboard->m_waiting = false; |
9691c806 RR |
156 | return; |
157 | } | |
83df96d6 | 158 | |
9691c806 | 159 | wxDataFormat format( selection_data->target ); |
83df96d6 | 160 | |
9691c806 RR |
161 | /* make sure we got the data in the correct format */ |
162 | if (!data_object->IsSupportedFormat( format ) ) | |
163 | { | |
de6185e2 | 164 | clipboard->m_waiting = false; |
9691c806 RR |
165 | return; |
166 | } | |
83df96d6 | 167 | |
9691c806 RR |
168 | /* make sure we got the data in the correct form (selection type). |
169 | if so, copy data to target object */ | |
170 | if (selection_data->type != GDK_SELECTION_TYPE_STRING) | |
171 | { | |
de6185e2 | 172 | clipboard->m_waiting = false; |
9691c806 RR |
173 | return; |
174 | } | |
83df96d6 | 175 | |
9691c806 | 176 | data_object->SetData( format, (size_t) selection_data->length, (const char*) selection_data->data ); |
83df96d6 | 177 | |
e4db172a | 178 | wxTheClipboard->m_formatSupported = true; |
de6185e2 | 179 | clipboard->m_waiting = false; |
83df96d6 JS |
180 | } |
181 | ||
9691c806 RR |
182 | //----------------------------------------------------------------------------- |
183 | // "selection_clear" | |
184 | //----------------------------------------------------------------------------- | |
83df96d6 | 185 | |
9691c806 RR |
186 | static gint |
187 | selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event ) | |
188 | { | |
189 | if (!wxTheClipboard) return TRUE; | |
83df96d6 | 190 | |
9691c806 RR |
191 | if (event->selection == GDK_SELECTION_PRIMARY) |
192 | { | |
de6185e2 | 193 | wxTheClipboard->m_ownsPrimarySelection = false; |
9691c806 RR |
194 | } |
195 | else | |
196 | if (event->selection == g_clipboardAtom) | |
197 | { | |
de6185e2 | 198 | wxTheClipboard->m_ownsClipboard = false; |
9691c806 RR |
199 | } |
200 | else | |
201 | { | |
de6185e2 | 202 | wxTheClipboard->m_waiting = false; |
9691c806 RR |
203 | return FALSE; |
204 | } | |
83df96d6 | 205 | |
9691c806 RR |
206 | if ((!wxTheClipboard->m_ownsPrimarySelection) && |
207 | (!wxTheClipboard->m_ownsClipboard)) | |
83df96d6 | 208 | { |
9691c806 RR |
209 | /* the clipboard is no longer in our hands. we can the delete clipboard data. */ |
210 | if (wxTheClipboard->m_data) | |
83df96d6 | 211 | { |
9691c806 RR |
212 | wxLogTrace(TRACE_CLIPBOARD, wxT("wxClipboard will get cleared" )); |
213 | ||
214 | delete wxTheClipboard->m_data; | |
215 | wxTheClipboard->m_data = (wxDataObject*) NULL; | |
216 | } | |
83df96d6 JS |
217 | } |
218 | ||
de6185e2 | 219 | wxTheClipboard->m_waiting = false; |
9691c806 | 220 | return TRUE; |
83df96d6 JS |
221 | } |
222 | ||
9691c806 RR |
223 | //----------------------------------------------------------------------------- |
224 | // selection handler for supplying data | |
225 | //----------------------------------------------------------------------------- | |
83df96d6 | 226 | |
9691c806 RR |
227 | static void |
228 | selection_handler( GtkWidget *WXUNUSED(widget), | |
229 | GtkSelectionData *selection_data, | |
230 | guint WXUNUSED(info), | |
231 | guint WXUNUSED(time), | |
232 | gpointer WXUNUSED(data) ) | |
83df96d6 | 233 | { |
9691c806 | 234 | if (!wxTheClipboard) return; |
83df96d6 | 235 | |
9691c806 RR |
236 | if (!wxTheClipboard->m_data) return; |
237 | ||
238 | wxDataObject *data = wxTheClipboard->m_data; | |
239 | ||
240 | wxDataFormat format( selection_data->target ); | |
241 | ||
242 | if (!data->IsSupportedFormat( format )) return; | |
243 | ||
244 | int size = data->GetDataSize( format ); | |
245 | ||
246 | if (size == 0) return; | |
247 | ||
248 | void *d = malloc(size); | |
249 | ||
250 | data->GetDataHere( selection_data->target, d ); | |
251 | ||
252 | // transform Unicode text into multibyte before putting it on clipboard | |
253 | #if wxUSE_UNICODE | |
daad5a23 | 254 | if ( format.GetType() == wxDF_TEXT || format.GetType() == wxDF_UNICODETEXT) |
83df96d6 | 255 | { |
9691c806 RR |
256 | const wchar_t *wstr = (const wchar_t *)d; |
257 | size_t len = wxConvCurrent->WC2MB(NULL, wstr, 0); | |
258 | char *str = malloc(len + 1); | |
259 | wxConvCurrent->WC2MB(str, wstr, len); | |
260 | str[len] = '\0'; | |
261 | ||
262 | free(d); | |
263 | d = str; | |
83df96d6 | 264 | } |
9691c806 RR |
265 | #endif // wxUSE_UNICODE |
266 | ||
267 | gtk_selection_data_set( | |
268 | selection_data, | |
269 | GDK_SELECTION_TYPE_STRING, | |
270 | 8*sizeof(gchar), | |
271 | (unsigned char*) d, | |
272 | size ); | |
273 | ||
274 | free(d); | |
83df96d6 JS |
275 | } |
276 | ||
9691c806 RR |
277 | #endif |
278 | ||
83df96d6 JS |
279 | //----------------------------------------------------------------------------- |
280 | // wxClipboard | |
281 | //----------------------------------------------------------------------------- | |
282 | ||
283 | IMPLEMENT_DYNAMIC_CLASS(wxClipboard,wxObject) | |
284 | ||
285 | wxClipboard::wxClipboard() | |
286 | { | |
de6185e2 | 287 | m_open = false; |
9691c806 | 288 | |
de6185e2 WS |
289 | m_ownsClipboard = false; |
290 | m_ownsPrimarySelection = false; | |
9691c806 RR |
291 | |
292 | m_data = (wxDataObject*) NULL; | |
293 | m_receivedData = (wxDataObject*) NULL; | |
294 | ||
295 | /* we use m_targetsWidget to query what formats are available */ | |
296 | ||
297 | /* we use m_clipboardWidget to get and to offer data */ | |
70b8ab77 | 298 | #if !wxUSE_NANOX |
9691c806 RR |
299 | if (!g_clipboardAtom) g_clipboardAtom = XInternAtom( (Display*) wxGetDisplay(), "CLIPBOARD", False ); |
300 | if (!g_targetsAtom) g_targetsAtom = XInternAtom( (Display*) wxGetDisplay(), "TARGETS", False ); | |
70b8ab77 | 301 | #endif |
e4db172a | 302 | |
de6185e2 | 303 | m_formatSupported = false; |
9691c806 RR |
304 | m_targetRequested = 0; |
305 | ||
de6185e2 | 306 | m_usePrimary = false; |
83df96d6 JS |
307 | } |
308 | ||
309 | wxClipboard::~wxClipboard() | |
310 | { | |
9691c806 RR |
311 | Clear(); |
312 | ||
313 | // if (m_clipboardWidget) gtk_widget_destroy( m_clipboardWidget ); | |
314 | // if (m_targetsWidget) gtk_widget_destroy( m_targetsWidget ); | |
83df96d6 JS |
315 | } |
316 | ||
317 | void wxClipboard::Clear() | |
318 | { | |
9691c806 | 319 | if (m_data) |
83df96d6 | 320 | { |
9691c806 RR |
321 | #if wxUSE_THREADS |
322 | /* disable GUI threads */ | |
323 | #endif | |
324 | ||
325 | /* As we have data we also own the clipboard. Once we no longer own | |
326 | it, clear_selection is called which will set m_data to zero */ | |
327 | #if 0 | |
328 | if (gdk_selection_owner_get( g_clipboardAtom ) == m_clipboardWidget->window) | |
329 | { | |
e4db172a | 330 | m_waiting = true; |
9691c806 RR |
331 | |
332 | gtk_selection_owner_set( (GtkWidget*) NULL, g_clipboardAtom, | |
333 | (guint32) GDK_CURRENT_TIME ); | |
334 | ||
335 | while (m_waiting) gtk_main_iteration(); | |
336 | } | |
337 | ||
338 | if (gdk_selection_owner_get( GDK_SELECTION_PRIMARY ) == m_clipboardWidget->window) | |
339 | { | |
e4db172a | 340 | m_waiting = true; |
9691c806 RR |
341 | |
342 | gtk_selection_owner_set( (GtkWidget*) NULL, GDK_SELECTION_PRIMARY, | |
343 | (guint32) GDK_CURRENT_TIME ); | |
344 | ||
345 | while (m_waiting) gtk_main_iteration(); | |
346 | } | |
347 | #endif | |
348 | ||
349 | if (m_data) | |
350 | { | |
351 | delete m_data; | |
352 | m_data = (wxDataObject*) NULL; | |
353 | } | |
354 | ||
355 | #if wxUSE_THREADS | |
356 | /* re-enable GUI threads */ | |
357 | #endif | |
83df96d6 | 358 | } |
9691c806 RR |
359 | |
360 | m_targetRequested = 0; | |
e4db172a | 361 | m_formatSupported = false; |
83df96d6 JS |
362 | } |
363 | ||
364 | bool wxClipboard::Open() | |
365 | { | |
e4db172a | 366 | wxCHECK_MSG( !m_open, false, wxT("clipboard already open") ); |
9691c806 | 367 | |
e4db172a | 368 | m_open = true; |
83df96d6 | 369 | |
e4db172a | 370 | return true; |
83df96d6 JS |
371 | } |
372 | ||
373 | bool wxClipboard::SetData( wxDataObject *data ) | |
374 | { | |
de6185e2 | 375 | wxCHECK_MSG( m_open, false, wxT("clipboard not open") ); |
9691c806 | 376 | |
de6185e2 | 377 | wxCHECK_MSG( data, false, wxT("data is invalid") ); |
83df96d6 JS |
378 | |
379 | Clear(); | |
380 | ||
381 | return AddData( data ); | |
382 | } | |
383 | ||
384 | bool wxClipboard::AddData( wxDataObject *data ) | |
385 | { | |
70b8ab77 | 386 | #if wxUSE_NANOX |
de6185e2 | 387 | return false; |
70b8ab77 | 388 | #else |
de6185e2 | 389 | wxCHECK_MSG( m_open, false, wxT("clipboard not open") ); |
9691c806 | 390 | |
de6185e2 | 391 | wxCHECK_MSG( data, false, wxT("data is invalid") ); |
9691c806 RR |
392 | |
393 | /* we can only store one wxDataObject */ | |
394 | Clear(); | |
395 | ||
396 | m_data = data; | |
397 | ||
398 | /* get formats from wxDataObjects */ | |
399 | wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ]; | |
400 | m_data->GetAllFormats( array ); | |
83df96d6 | 401 | |
cb78397f | 402 | #if 0 |
9691c806 RR |
403 | /* primary selection or clipboard */ |
404 | Atom clipboard = m_usePrimary ? (Atom) 1 // 1 = primary selection | |
405 | : g_clipboardAtom; | |
cb78397f | 406 | #endif // 0 |
9691c806 RR |
407 | |
408 | ||
409 | for (size_t i = 0; i < m_data->GetFormatCount(); i++) | |
83df96d6 | 410 | { |
9691c806 RR |
411 | wxLogTrace( TRACE_CLIPBOARD, |
412 | wxT("wxClipboard now supports atom %s"), | |
413 | array[i].GetId().c_str() ); | |
414 | ||
83df96d6 | 415 | #if 0 |
9691c806 RR |
416 | gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget), |
417 | clipboard, | |
418 | array[i], | |
419 | 0 ); /* what is info ? */ | |
420 | #endif | |
83df96d6 | 421 | } |
9691c806 RR |
422 | |
423 | delete[] array; | |
424 | ||
425 | #if 0 | |
426 | gtk_signal_connect( GTK_OBJECT(m_clipboardWidget), | |
427 | "selection_get", | |
428 | GTK_SIGNAL_FUNC(selection_handler), | |
429 | (gpointer) NULL ); | |
430 | #endif | |
431 | ||
432 | #if wxUSE_THREADS | |
433 | /* disable GUI threads */ | |
434 | #endif | |
435 | ||
de6185e2 | 436 | bool res = false; |
9691c806 RR |
437 | #if 0 |
438 | /* Tell the world we offer clipboard data */ | |
439 | res = (gtk_selection_owner_set( m_clipboardWidget, | |
440 | clipboard, | |
441 | (guint32) GDK_CURRENT_TIME )); | |
442 | #endif | |
443 | ||
444 | if (m_usePrimary) | |
445 | m_ownsPrimarySelection = res; | |
446 | else | |
447 | m_ownsClipboard = res; | |
448 | ||
449 | #if wxUSE_THREADS | |
450 | /* re-enable GUI threads */ | |
451 | #endif | |
452 | ||
453 | return res; | |
70b8ab77 | 454 | #endif |
83df96d6 JS |
455 | } |
456 | ||
457 | void wxClipboard::Close() | |
458 | { | |
9691c806 RR |
459 | wxCHECK_RET( m_open, wxT("clipboard not open") ); |
460 | ||
de6185e2 | 461 | m_open = false; |
83df96d6 JS |
462 | } |
463 | ||
9691c806 | 464 | bool wxClipboard::IsOpened() const |
83df96d6 | 465 | { |
9691c806 | 466 | return m_open; |
83df96d6 JS |
467 | } |
468 | ||
9691c806 | 469 | bool wxClipboard::IsSupported( const wxDataFormat& format ) |
83df96d6 | 470 | { |
9691c806 | 471 | /* reentrance problems */ |
e4db172a | 472 | if (m_waiting) return false; |
9691c806 RR |
473 | |
474 | /* store requested format to be asked for by callbacks */ | |
475 | m_targetRequested = format; | |
83df96d6 JS |
476 | |
477 | #if 0 | |
9691c806 RR |
478 | wxLogTrace( TRACE_CLIPBOARD, |
479 | wxT("wxClipboard:IsSupported: requested format: %s"), | |
480 | format.GetId().c_str() ); | |
481 | #endif | |
83df96d6 | 482 | |
e4db172a | 483 | wxCHECK_MSG( m_targetRequested, false, wxT("invalid clipboard format") ); |
83df96d6 | 484 | |
e4db172a | 485 | m_formatSupported = false; |
83df96d6 | 486 | |
9691c806 | 487 | /* perform query. this will set m_formatSupported to |
e4db172a | 488 | true if m_targetRequested is supported. |
9691c806 RR |
489 | also, we have to wait for the "answer" from the |
490 | clipboard owner which is an asynchronous process. | |
e4db172a | 491 | therefore we set m_waiting = true here and wait |
9691c806 | 492 | until the callback "targets_selection_received" |
e4db172a | 493 | sets it to false */ |
83df96d6 | 494 | |
e4db172a | 495 | m_waiting = true; |
83df96d6 | 496 | |
9691c806 RR |
497 | #if 0 |
498 | gtk_selection_convert( m_targetsWidget, | |
499 | m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY | |
500 | : g_clipboardAtom, | |
501 | g_targetsAtom, | |
502 | (guint32) GDK_CURRENT_TIME ); | |
83df96d6 | 503 | |
9691c806 RR |
504 | while (m_waiting) gtk_main_iteration(); |
505 | #endif | |
83df96d6 | 506 | |
e4db172a | 507 | if (!m_formatSupported) return false; |
83df96d6 | 508 | |
e4db172a | 509 | return true; |
83df96d6 JS |
510 | } |
511 | ||
9691c806 | 512 | bool wxClipboard::GetData( wxDataObject& data ) |
83df96d6 | 513 | { |
e4db172a | 514 | wxCHECK_MSG( m_open, false, wxT("clipboard not open") ); |
83df96d6 | 515 | |
9691c806 RR |
516 | /* get formats from wxDataObjects */ |
517 | wxDataFormat *array = new wxDataFormat[ data.GetFormatCount() ]; | |
518 | data.GetAllFormats( array ); | |
83df96d6 | 519 | |
9691c806 RR |
520 | for (size_t i = 0; i < data.GetFormatCount(); i++) |
521 | { | |
522 | wxDataFormat format( array[i] ); | |
523 | ||
524 | wxLogTrace( TRACE_CLIPBOARD, | |
525 | wxT("wxClipboard::GetData: requested format: %s"), | |
526 | format.GetId().c_str() ); | |
527 | ||
528 | /* is data supported by clipboard ? */ | |
529 | ||
530 | /* store requested format to be asked for by callbacks */ | |
531 | m_targetRequested = format; | |
532 | ||
e4db172a | 533 | wxCHECK_MSG( m_targetRequested, false, wxT("invalid clipboard format") ); |
9691c806 | 534 | |
e4db172a | 535 | m_formatSupported = false; |
9691c806 RR |
536 | |
537 | /* perform query. this will set m_formatSupported to | |
e4db172a | 538 | true if m_targetRequested is supported. |
9691c806 RR |
539 | also, we have to wait for the "answer" from the |
540 | clipboard owner which is an asynchronous process. | |
e4db172a | 541 | therefore we set m_waiting = true here and wait |
9691c806 | 542 | until the callback "targets_selection_received" |
de6185e2 | 543 | sets it to false */ |
9691c806 | 544 | |
e4db172a | 545 | m_waiting = true; |
9691c806 RR |
546 | |
547 | #if 0 | |
548 | gtk_selection_convert( m_targetsWidget, | |
549 | m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY | |
550 | : g_clipboardAtom, | |
551 | g_targetsAtom, | |
552 | (guint32) GDK_CURRENT_TIME ); | |
553 | ||
554 | while (m_waiting) gtk_main_iteration(); | |
555 | #endif | |
556 | ||
557 | if (!m_formatSupported) continue; | |
558 | ||
559 | /* store pointer to data object to be filled up by callbacks */ | |
560 | m_receivedData = &data; | |
561 | ||
562 | /* store requested format to be asked for by callbacks */ | |
563 | m_targetRequested = format; | |
564 | ||
e4db172a | 565 | wxCHECK_MSG( m_targetRequested, false, wxT("invalid clipboard format") ); |
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566 | |
567 | /* start query */ | |
e4db172a | 568 | m_formatSupported = false; |
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569 | |
570 | /* ask for clipboard contents. this will set | |
e4db172a | 571 | m_formatSupported to true if m_targetRequested |
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572 | is supported. |
573 | also, we have to wait for the "answer" from the | |
574 | clipboard owner which is an asynchronous process. | |
e4db172a | 575 | therefore we set m_waiting = true here and wait |
9691c806 | 576 | until the callback "targets_selection_received" |
e4db172a | 577 | sets it to false */ |
9691c806 | 578 | |
e4db172a | 579 | m_waiting = true; |
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580 | |
581 | wxLogTrace( TRACE_CLIPBOARD, | |
582 | wxT("wxClipboard::GetData: format found, start convert") ); | |
583 | ||
584 | #if 0 | |
585 | gtk_selection_convert( m_clipboardWidget, | |
586 | m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY | |
587 | : g_clipboardAtom, | |
588 | m_targetRequested, | |
589 | (guint32) GDK_CURRENT_TIME ); | |
590 | ||
591 | while (m_waiting) gtk_main_iteration(); | |
592 | #endif | |
593 | ||
594 | /* this is a true error as we checked for the presence of such data before */ | |
de6185e2 | 595 | wxCHECK_MSG( m_formatSupported, false, wxT("error retrieving data from clipboard") ); |
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596 | |
597 | /* return success */ | |
598 | delete[] array; | |
e4db172a | 599 | return true; |
83df96d6 | 600 | } |
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601 | |
602 | wxLogTrace( TRACE_CLIPBOARD, | |
603 | wxT("wxClipboard::GetData: format not found") ); | |
604 | ||
605 | /* return failure */ | |
606 | delete[] array; | |
e4db172a | 607 | return false; |
83df96d6 | 608 | } |
9691c806 | 609 | |
83df96d6 | 610 | #endif |
9691c806 | 611 | // wxUSE_CLIPBOARD |