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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/filedlg.cpp
3 // Purpose: native implementation of wxFileDialog
4 // Author: Robert Roebling, Zbigniew Zagorski, Mart Raudsepp
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling, 2004 Zbigniew Zagorski, 2005 Mart Raudsepp
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
12
13 #if wxUSE_FILEDLG && defined(__WXGTK24__)
14
15 #include "wx/filedlg.h"
16
17 #ifndef WX_PRECOMP
18 #include "wx/intl.h"
19 #include "wx/msgdlg.h"
20 #endif
21
22 #include <gtk/gtk.h>
23 #include "wx/gtk/private.h"
24
25 #include <unistd.h> // chdir
26
27 #include "wx/filename.h" // wxFilename
28 #include "wx/tokenzr.h" // wxStringTokenizer
29 #include "wx/filefn.h" // ::wxGetCwd
30
31 //-----------------------------------------------------------------------------
32 // "clicked" for OK-button
33 //-----------------------------------------------------------------------------
34
35 extern "C" {
36 static void gtk_filedialog_ok_callback(GtkWidget *widget, wxFileDialog *dialog)
37 {
38 int style = dialog->GetWindowStyle();
39 wxGtkString filename(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget)));
40
41 // gtk version numbers must be identical with the one in ctor (that calls set_do_overwrite_confirmation)
42 #if GTK_CHECK_VERSION(2,7,3)
43 if(gtk_check_version(2,7,3) != NULL)
44 #endif
45 if ((style & wxFD_SAVE) && (style & wxFD_OVERWRITE_PROMPT))
46 {
47 if ( g_file_test(filename, G_FILE_TEST_EXISTS) )
48 {
49 wxString msg;
50
51 msg.Printf(
52 _("File '%s' already exists, do you really want to overwrite it?"),
53 wxString(filename, *wxConvFileName));
54
55 wxMessageDialog dlg(dialog, msg, _("Confirm"),
56 wxYES_NO | wxICON_QUESTION);
57 if (dlg.ShowModal() != wxID_YES)
58 return;
59 }
60 }
61
62 if (style & wxFD_FILE_MUST_EXIST)
63 {
64 if ( !g_file_test(filename, G_FILE_TEST_EXISTS) )
65 {
66 wxMessageDialog dlg( dialog, _("Please choose an existing file."),
67 _("Error"), wxOK| wxICON_ERROR);
68 dlg.ShowModal();
69 return;
70 }
71 }
72
73 // change to the directory where the user went if asked
74 if (style & wxFD_CHANGE_DIR)
75 {
76 // Use chdir to not care about filename encodings
77 wxGtkString folder(g_path_get_dirname(filename));
78 chdir(folder);
79 }
80
81 wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_OK);
82 event.SetEventObject(dialog);
83 dialog->GetEventHandler()->ProcessEvent(event);
84 }
85 }
86
87 //-----------------------------------------------------------------------------
88 // "clicked" for Cancel-button
89 //-----------------------------------------------------------------------------
90
91 extern "C"
92 {
93
94 static void gtk_filedialog_cancel_callback(GtkWidget *w, wxFileDialog *dialog)
95 {
96 wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
97 event.SetEventObject(dialog);
98 dialog->GetEventHandler()->ProcessEvent(event);
99 }
100
101 static void gtk_filedialog_response_callback(GtkWidget *w,
102 gint response,
103 wxFileDialog *dialog)
104 {
105 if (response == GTK_RESPONSE_ACCEPT)
106 gtk_filedialog_ok_callback(w, dialog);
107 else // GTK_RESPONSE_CANCEL or GTK_RESPONSE_NONE
108 gtk_filedialog_cancel_callback(w, dialog);
109 }
110
111 static void gtk_filedialog_update_preview_callback(GtkFileChooser *chooser,
112 gpointer user_data)
113 {
114 #if GTK_CHECK_VERSION(2,4,0)
115 GtkWidget *preview = GTK_WIDGET(user_data);
116
117 wxGtkString filename(gtk_file_chooser_get_preview_filename(chooser));
118
119 if ( !filename )
120 return;
121
122 GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file_at_size(filename, 128, 128, NULL);
123 gboolean have_preview = pixbuf != NULL;
124
125 gtk_image_set_from_pixbuf(GTK_IMAGE(preview), pixbuf);
126 if ( pixbuf )
127 g_object_unref (pixbuf);
128
129 gtk_file_chooser_set_preview_widget_active(chooser, have_preview);
130 #else
131 wxUnusedVar(chooser);
132 wxUnusedVar(user_data);
133 #endif // GTK+ 2.4+
134 }
135
136 } // extern "C"
137
138
139 //-----------------------------------------------------------------------------
140 // wxFileDialog
141 //-----------------------------------------------------------------------------
142
143 IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxGenericFileDialog)
144
145 BEGIN_EVENT_TABLE(wxFileDialog,wxGenericFileDialog)
146 EVT_BUTTON(wxID_OK, wxFileDialog::OnFakeOk)
147 END_EVENT_TABLE()
148
149 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
150 const wxString& defaultDir,
151 const wxString& defaultFileName,
152 const wxString& wildCard,
153 long style, const wxPoint& pos,
154 const wxSize& sz,
155 const wxString& name)
156 : wxGenericFileDialog(parent, message, defaultDir, defaultFileName,
157 wildCard, style, pos, sz, name, true )
158 {
159 if (gtk_check_version(2,4,0))
160 {
161 wxGenericFileDialog::Create( parent, message, defaultDir,
162 defaultFileName, wildCard, style, pos );
163 return;
164 }
165
166 parent = GetParentForModalDialog(parent);
167
168 if (!PreCreation(parent, pos, wxDefaultSize) ||
169 !CreateBase(parent, wxID_ANY, pos, wxDefaultSize, style,
170 wxDefaultValidator, wxT("filedialog")))
171 {
172 wxFAIL_MSG( wxT("wxFileDialog creation failed") );
173 return;
174 }
175
176 GtkFileChooserAction gtk_action;
177 GtkWindow* gtk_parent = NULL;
178 if (parent)
179 gtk_parent = GTK_WINDOW( gtk_widget_get_toplevel(parent->m_widget) );
180
181 const gchar* ok_btn_stock;
182 if ( style & wxFD_SAVE )
183 {
184 gtk_action = GTK_FILE_CHOOSER_ACTION_SAVE;
185 ok_btn_stock = GTK_STOCK_SAVE;
186 }
187 else
188 {
189 gtk_action = GTK_FILE_CHOOSER_ACTION_OPEN;
190 ok_btn_stock = GTK_STOCK_OPEN;
191 }
192
193 m_widget = gtk_file_chooser_dialog_new(
194 wxGTK_CONV(m_message),
195 gtk_parent,
196 gtk_action,
197 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
198 ok_btn_stock, GTK_RESPONSE_ACCEPT,
199 NULL);
200
201 gtk_dialog_set_default_response(GTK_DIALOG(m_widget), GTK_RESPONSE_ACCEPT);
202
203 if ( style & wxFD_MULTIPLE )
204 gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(m_widget), true);
205
206 // gtk_widget_hide_on_delete is used here to avoid that Gtk automatically
207 // destroys the dialog when the user press ESC on the dialog: in that case
208 // a second call to ShowModal() would result in a bunch of Gtk-CRITICAL
209 // errors...
210 g_signal_connect (G_OBJECT(m_widget),
211 "delete_event",
212 G_CALLBACK (gtk_widget_hide_on_delete),
213 (gpointer)this);
214
215 // local-only property could be set to false to allow non-local files to be
216 // loaded. In that case get/set_uri(s) should be used instead of
217 // get/set_filename(s) everywhere and the GtkFileChooserDialog should
218 // probably also be created with a backend, e.g "gnome-vfs", "default", ...
219 // (gtk_file_chooser_dialog_new_with_backend). Currently local-only is kept
220 // as the default - true:
221 // gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(m_widget), true);
222
223 g_signal_connect (m_widget, "response",
224 G_CALLBACK (gtk_filedialog_response_callback), this);
225
226 SetWildcard(wildCard);
227
228 // if defaultDir is specified it should contain the directory and
229 // defaultFileName should contain the default name of the file, however if
230 // directory is not given, defaultFileName contains both
231 wxFileName fn;
232 if ( defaultDir.empty() )
233 fn.Assign(defaultFileName);
234 else if ( !defaultFileName.empty() )
235 fn.Assign(defaultDir, defaultFileName);
236 else
237 fn.AssignDir(defaultDir);
238
239 // set the initial file name and/or directory
240 fn.MakeAbsolute(); // GTK+ needs absolute path
241 const wxString dir = fn.GetPath();
242 if ( !dir.empty() )
243 {
244 gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(m_widget),
245 dir.fn_str());
246 }
247
248 const wxString fname = fn.GetFullName();
249 if ( style & wxFD_SAVE )
250 {
251 if ( !fname.empty() )
252 {
253 gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget),
254 fname.fn_str());
255 }
256
257 #if GTK_CHECK_VERSION(2,7,3)
258 if ((style & wxFD_OVERWRITE_PROMPT) && !gtk_check_version(2,7,3))
259 gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(m_widget), TRUE);
260 #endif
261 }
262 else // wxFD_OPEN
263 {
264 if ( !fname.empty() )
265 {
266 gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(m_widget),
267 fn.GetFullPath().fn_str());
268 }
269 }
270
271 #if GTK_CHECK_VERSION(2,4,0)
272 if ( style & wxFD_PREVIEW )
273 {
274 GtkWidget *previewImage = gtk_image_new();
275
276 gtk_file_chooser_set_preview_widget(GTK_FILE_CHOOSER(m_widget),
277 previewImage);
278 g_signal_connect(m_widget, "update-preview",
279 G_CALLBACK(gtk_filedialog_update_preview_callback),
280 previewImage);
281 }
282 #endif // GTK+ 2.4+
283 }
284
285 void wxFileDialog::OnFakeOk( wxCommandEvent &event )
286 {
287 if (!gtk_check_version(2,4,0))
288 EndDialog(wxID_OK);
289 else
290 wxGenericFileDialog::OnListOk( event );
291 }
292
293 int wxFileDialog::ShowModal()
294 {
295 if (!gtk_check_version(2,4,0))
296 return wxDialog::ShowModal();
297 else
298 return wxGenericFileDialog::ShowModal();
299 }
300
301 bool wxFileDialog::Show( bool show )
302 {
303 if (!gtk_check_version(2,4,0))
304 return wxDialog::Show( show );
305 else
306 return wxGenericFileDialog::Show( show );
307 }
308
309 void wxFileDialog::DoSetSize(int x, int y, int width, int height, int sizeFlags )
310 {
311 if (!m_wxwindow)
312 return;
313 else
314 wxGenericFileDialog::DoSetSize( x, y, width, height, sizeFlags );
315 }
316
317 wxString wxFileDialog::GetPath() const
318 {
319 if (!gtk_check_version(2,4,0))
320 {
321 wxGtkString str(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(m_widget)));
322 return wxString(str, *wxConvFileName);
323 }
324
325 return wxGenericFileDialog::GetPath();
326 }
327
328 void wxFileDialog::GetFilenames(wxArrayString& files) const
329 {
330 if (!gtk_check_version(2,4,0))
331 {
332 GetPaths(files);
333 for (size_t n = 0; n < files.GetCount(); ++n )
334 {
335 wxFileName file(files[n]);
336 files[n] = file.GetFullName();
337 }
338 }
339 else
340 wxGenericFileDialog::GetFilenames( files );
341 }
342
343 void wxFileDialog::GetPaths(wxArrayString& paths) const
344 {
345 if (!gtk_check_version(2,4,0))
346 {
347 paths.Empty();
348 if (gtk_file_chooser_get_select_multiple(GTK_FILE_CHOOSER(m_widget)))
349 {
350 GSList *gpathsi = gtk_file_chooser_get_filenames(GTK_FILE_CHOOSER(m_widget));
351 GSList *gpaths = gpathsi;
352 while (gpathsi)
353 {
354 wxString file((gchar*) gpathsi->data, *wxConvFileName);
355 paths.Add(file);
356 g_free(gpathsi->data);
357 gpathsi = gpathsi->next;
358 }
359
360 g_slist_free(gpaths);
361 }
362 else
363 paths.Add(GetPath());
364 }
365 else
366 wxGenericFileDialog::GetPaths( paths );
367 }
368
369 void wxFileDialog::SetMessage(const wxString& message)
370 {
371 if (!gtk_check_version(2,4,0))
372 {
373 m_message = message;
374 SetTitle(message);
375 }
376 else
377 wxGenericFileDialog::SetMessage( message );
378 }
379
380 void wxFileDialog::SetPath(const wxString& path)
381 {
382 if (!gtk_check_version(2,4,0))
383 {
384 if (path.empty()) return;
385
386 gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(m_widget), path.fn_str());
387 }
388 else
389 wxGenericFileDialog::SetPath( path );
390 }
391
392 void wxFileDialog::SetDirectory(const wxString& dir)
393 {
394 if (!gtk_check_version(2,4,0))
395 {
396 if (wxDirExists(dir))
397 {
398 gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(m_widget), dir.fn_str());
399 }
400 }
401 else
402 wxGenericFileDialog::SetDirectory( dir );
403 }
404
405 wxString wxFileDialog::GetDirectory() const
406 {
407 if (!gtk_check_version(2,4,0))
408 {
409 wxGtkString str(gtk_file_chooser_get_current_folder(GTK_FILE_CHOOSER(m_widget)));
410 return wxString(str, *wxConvFileName);
411 }
412
413 return wxGenericFileDialog::GetDirectory();
414 }
415
416 void wxFileDialog::SetFilename(const wxString& name)
417 {
418 if (!gtk_check_version(2,4,0))
419 {
420 if (HasFdFlag(wxFD_SAVE))
421 gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget), wxGTK_CONV(name));
422 else
423 SetPath(wxFileName(GetDirectory(), name).GetFullPath());
424 }
425 else
426 wxGenericFileDialog::SetFilename( name );
427 }
428
429 wxString wxFileDialog::GetFilename() const
430 {
431 if (!gtk_check_version(2,4,0))
432 return wxFileName(GetPath()).GetFullName();
433 else
434 return wxGenericFileDialog::GetFilename();
435 }
436
437 void wxFileDialog::SetWildcard(const wxString& wildCard)
438 {
439 if (!gtk_check_version(2,4,0))
440 {
441 // parse filters
442 wxArrayString wildDescriptions, wildFilters;
443 if (!wxParseCommonDialogsFilter(wildCard, wildDescriptions, wildFilters))
444 {
445 wxFAIL_MSG( wxT("wxFileDialog::SetWildCard - bad wildcard string") );
446 }
447 else
448 {
449 // Parsing went fine. Set m_wildCard to be returned by wxFileDialogBase::GetWildcard
450 m_wildCard = wildCard;
451
452 GtkFileChooser* chooser = GTK_FILE_CHOOSER(m_widget);
453
454 // empty current filter list:
455 GSList* ifilters = gtk_file_chooser_list_filters(chooser);
456 GSList* filters = ifilters;
457
458 while (ifilters)
459 {
460 gtk_file_chooser_remove_filter(chooser,GTK_FILE_FILTER(ifilters->data));
461 ifilters = ifilters->next;
462 }
463 g_slist_free(filters);
464
465 // add parsed to GtkChooser
466 for (size_t n = 0; n < wildFilters.GetCount(); ++n)
467 {
468 GtkFileFilter* filter = gtk_file_filter_new();
469 gtk_file_filter_set_name(filter, wxGTK_CONV(wildDescriptions[n]));
470
471 wxStringTokenizer exttok(wildFilters[n], wxT(";"));
472 while (exttok.HasMoreTokens())
473 {
474 wxString token = exttok.GetNextToken();
475 gtk_file_filter_add_pattern(filter, wxGTK_CONV(token));
476 }
477
478 gtk_file_chooser_add_filter(chooser, filter);
479 }
480
481 // Reset the filter index
482 SetFilterIndex(0);
483 }
484 }
485 else
486 wxGenericFileDialog::SetWildcard( wildCard );
487 }
488
489 void wxFileDialog::SetFilterIndex(int filterIndex)
490 {
491
492 if (!gtk_check_version(2,4,0))
493 {
494 gpointer filter;
495 GtkFileChooser *chooser = GTK_FILE_CHOOSER(m_widget);
496 GSList *filters = gtk_file_chooser_list_filters(chooser);
497
498 filter = g_slist_nth_data(filters, filterIndex);
499
500 if (filter != NULL)
501 {
502 gtk_file_chooser_set_filter(chooser, GTK_FILE_FILTER(filter));
503 }
504 else
505 {
506 wxFAIL_MSG( wxT("wxFileDialog::SetFilterIndex - bad filter index") );
507 }
508
509 g_slist_free(filters);
510 }
511 else
512 wxGenericFileDialog::SetFilterIndex( filterIndex );
513 }
514
515 int wxFileDialog::GetFilterIndex() const
516 {
517 if (!gtk_check_version(2,4,0))
518 {
519 GtkFileChooser *chooser = GTK_FILE_CHOOSER(m_widget);
520 GtkFileFilter *filter = gtk_file_chooser_get_filter(chooser);
521 GSList *filters = gtk_file_chooser_list_filters(chooser);
522 gint index = g_slist_index(filters, filter);
523 g_slist_free(filters);
524
525 if (index == -1)
526 {
527 wxFAIL_MSG( wxT("wxFileDialog::GetFilterIndex - bad filter index returned by gtk+") );
528 return 0;
529 }
530 else
531 return index;
532 }
533 else
534 return wxGenericFileDialog::GetFilterIndex();
535 }
536
537 #endif // wxUSE_FILEDLG && __WXGTK24__