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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
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
95 gtk_filedialog_cancel_callback(GtkWidget * WXUNUSED(w), wxFileDialog *dialog)
96 {
97 wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
98 event.SetEventObject(dialog);
99 dialog->GetEventHandler()->ProcessEvent(event);
100 }
101
102 static void gtk_filedialog_response_callback(GtkWidget *w,
103 gint response,
104 wxFileDialog *dialog)
105 {
106 if (response == GTK_RESPONSE_ACCEPT)
107 gtk_filedialog_ok_callback(w, dialog);
108 else // GTK_RESPONSE_CANCEL or GTK_RESPONSE_NONE
109 gtk_filedialog_cancel_callback(w, dialog);
110 }
111
112 static void gtk_filedialog_update_preview_callback(GtkFileChooser *chooser,
113 gpointer user_data)
114 {
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 }
131
132 } // extern "C"
133
134
135 //-----------------------------------------------------------------------------
136 // wxFileDialog
137 //-----------------------------------------------------------------------------
138
139 IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxFileDialogBase)
140
141 BEGIN_EVENT_TABLE(wxFileDialog,wxFileDialogBase)
142 EVT_BUTTON(wxID_OK, wxFileDialog::OnFakeOk)
143 END_EVENT_TABLE()
144
145 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
146 const wxString& defaultDir,
147 const wxString& defaultFileName,
148 const wxString& wildCard,
149 long style, const wxPoint& pos,
150 const wxSize& sz,
151 const wxString& name)
152 : wxFileDialogBase()
153 {
154 parent = GetParentForModalDialog(parent);
155
156 if (!wxFileDialogBase::Create(parent, message, defaultDir, defaultFileName,
157 wildCard, style, pos, sz, name))
158 {
159 return;
160 }
161
162 if (!PreCreation(parent, pos, wxDefaultSize) ||
163 !CreateBase(parent, wxID_ANY, pos, wxDefaultSize, style,
164 wxDefaultValidator, wxT("filedialog")))
165 {
166 wxFAIL_MSG( wxT("wxFileDialog creation failed") );
167 return;
168 }
169
170 GtkFileChooserAction gtk_action;
171 GtkWindow* gtk_parent = NULL;
172 if (parent)
173 gtk_parent = GTK_WINDOW( gtk_widget_get_toplevel(parent->m_widget) );
174
175 const gchar* ok_btn_stock;
176 if ( style & wxFD_SAVE )
177 {
178 gtk_action = GTK_FILE_CHOOSER_ACTION_SAVE;
179 ok_btn_stock = GTK_STOCK_SAVE;
180 }
181 else
182 {
183 gtk_action = GTK_FILE_CHOOSER_ACTION_OPEN;
184 ok_btn_stock = GTK_STOCK_OPEN;
185 }
186
187 m_widget = gtk_file_chooser_dialog_new(
188 wxGTK_CONV(m_message),
189 gtk_parent,
190 gtk_action,
191 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
192 ok_btn_stock, GTK_RESPONSE_ACCEPT,
193 NULL);
194
195 m_fc.SetWidget( GTK_FILE_CHOOSER(m_widget) );
196
197 gtk_dialog_set_default_response(GTK_DIALOG(m_widget), GTK_RESPONSE_ACCEPT);
198
199 if ( style & wxFD_MULTIPLE )
200 gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(m_widget), true);
201
202 // gtk_widget_hide_on_delete is used here to avoid that Gtk automatically
203 // destroys the dialog when the user press ESC on the dialog: in that case
204 // a second call to ShowModal() would result in a bunch of Gtk-CRITICAL
205 // errors...
206 g_signal_connect (G_OBJECT(m_widget),
207 "delete_event",
208 G_CALLBACK (gtk_widget_hide_on_delete),
209 (gpointer)this);
210
211 // local-only property could be set to false to allow non-local files to be
212 // loaded. In that case get/set_uri(s) should be used instead of
213 // get/set_filename(s) everywhere and the GtkFileChooserDialog should
214 // probably also be created with a backend, e.g "gnome-vfs", "default", ...
215 // (gtk_file_chooser_dialog_new_with_backend). Currently local-only is kept
216 // as the default - true:
217 // gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(m_widget), true);
218
219 g_signal_connect (m_widget, "response",
220 G_CALLBACK (gtk_filedialog_response_callback), this);
221
222 SetWildcard(wildCard);
223
224 // if defaultDir is specified it should contain the directory and
225 // defaultFileName should contain the default name of the file, however if
226 // directory is not given, defaultFileName contains both
227 wxFileName fn;
228 if ( defaultDir.empty() )
229 fn.Assign(defaultFileName);
230 else if ( !defaultFileName.empty() )
231 fn.Assign(defaultDir, defaultFileName);
232 else
233 fn.AssignDir(defaultDir);
234
235 // set the initial file name and/or directory
236 fn.MakeAbsolute(); // GTK+ needs absolute path
237 const wxString dir = fn.GetPath();
238 if ( !dir.empty() )
239 {
240 gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(m_widget),
241 dir.fn_str());
242 }
243
244 const wxString fname = fn.GetFullName();
245 if ( style & wxFD_SAVE )
246 {
247 if ( !fname.empty() )
248 {
249 gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget),
250 fname.fn_str());
251 }
252
253 #if GTK_CHECK_VERSION(2,7,3)
254 if ((style & wxFD_OVERWRITE_PROMPT) && !gtk_check_version(2,7,3))
255 gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(m_widget), TRUE);
256 #endif
257 }
258 else // wxFD_OPEN
259 {
260 if ( !fname.empty() )
261 {
262 gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(m_widget),
263 fn.GetFullPath().fn_str());
264 }
265 }
266
267 if ( style & wxFD_PREVIEW )
268 {
269 GtkWidget *previewImage = gtk_image_new();
270
271 gtk_file_chooser_set_preview_widget(GTK_FILE_CHOOSER(m_widget),
272 previewImage);
273 g_signal_connect(m_widget, "update-preview",
274 G_CALLBACK(gtk_filedialog_update_preview_callback),
275 previewImage);
276 }
277 }
278
279 void wxFileDialog::OnFakeOk(wxCommandEvent& WXUNUSED(event))
280 {
281 EndDialog(wxID_OK);
282 }
283
284 int wxFileDialog::ShowModal()
285 {
286 return wxDialog::ShowModal();
287 }
288
289 bool wxFileDialog::Show( bool show )
290 {
291 return wxDialog::Show( show );
292 }
293
294 void wxFileDialog::DoSetSize(int WXUNUSED(x), int WXUNUSED(y),
295 int WXUNUSED(width), int WXUNUSED(height),
296 int WXUNUSED(sizeFlags))
297 {
298 }
299
300 wxString wxFileDialog::GetPath() const
301 {
302 return m_fc.GetPath();
303 }
304
305 void wxFileDialog::GetFilenames(wxArrayString& files) const
306 {
307 m_fc.GetFilenames( files );
308 }
309
310 void wxFileDialog::GetPaths(wxArrayString& paths) const
311 {
312 m_fc.GetPaths( paths );
313 }
314
315 void wxFileDialog::SetMessage(const wxString& message)
316 {
317 m_message = message;
318 SetTitle(message);
319 }
320
321 void wxFileDialog::SetPath(const wxString& path)
322 {
323 m_fc.SetPath( path );
324 }
325
326 void wxFileDialog::SetDirectory(const wxString& dir)
327 {
328 m_fc.SetDirectory( dir );
329 }
330
331 wxString wxFileDialog::GetDirectory() const
332 {
333 return m_fc.GetDirectory();
334 }
335
336 void wxFileDialog::SetFilename(const wxString& name)
337 {
338 if (HasFdFlag(wxFD_SAVE))
339 gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget), wxGTK_CONV(name));
340 else
341 SetPath(wxFileName(GetDirectory(), name).GetFullPath());
342 }
343
344 wxString wxFileDialog::GetFilename() const
345 {
346 return m_fc.GetFilename();
347 }
348
349 void wxFileDialog::SetWildcard(const wxString& wildCard)
350 {
351 m_fc.SetWildcard( wildCard );
352 }
353
354 void wxFileDialog::SetFilterIndex(int filterIndex)
355 {
356
357 m_fc.SetFilterIndex( filterIndex);
358 }
359
360 int wxFileDialog::GetFilterIndex() const
361 {
362 return m_fc.GetFilterIndex();
363 }
364
365 #endif // wxUSE_FILEDLG