src/gtk/filedlg.cpp

   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 // idle system
  33 //-----------------------------------------------------------------------------
  34
  35 extern void wxapp_install_idle_handler();
  36
  37 //-----------------------------------------------------------------------------
  38 // "clicked" for OK-button
  39 //-----------------------------------------------------------------------------
  40
  41 extern "C" {
  42 static void gtk_filedialog_ok_callback(GtkWidget *widget, wxFileDialog *dialog)
  43 {
  44     int style = dialog->GetWindowStyle();
  45     gchar* filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget));
  46
  47     // gtk version numbers must be identical with the one in ctor (that calls set_do_overwrite_confirmation)
  48 #if GTK_CHECK_VERSION(2,7,3)
  49     if(gtk_check_version(2,7,3) != NULL)
  50 #endif
  51     if ((style & wxFD_SAVE) && (style & wxFD_OVERWRITE_PROMPT))
  52     {
  53         if ( g_file_test(filename, G_FILE_TEST_EXISTS) )
  54         {
  55             wxString msg;
  56
  57             msg.Printf(
  58                 _("File '%s' already exists, do you really want to overwrite it?"),
  59                 wxString(wxConvFileName->cMB2WX(filename)).c_str());
  60
  61             wxMessageDialog dlg(dialog, msg, _("Confirm"),
  62                                wxYES_NO | wxICON_QUESTION);
  63             if (dlg.ShowModal() != wxID_YES)
  64                 return;
  65         }
  66     }
  67
  68     // change to the directory where the user went if asked
  69     if (style & wxFD_CHANGE_DIR)
  70     {
  71         // Use chdir to not care about filename encodings
  72         gchar* folder = g_path_get_dirname(filename);
  73         chdir(folder);
  74         g_free(folder);
  75     }
  76
  77     g_free(filename);
  78
  79     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_OK);
  80     event.SetEventObject(dialog);
  81     dialog->GetEventHandler()->ProcessEvent(event);
  82 }
  83 }
  84
  85 //-----------------------------------------------------------------------------
  86 // "clicked" for Cancel-button
  87 //-----------------------------------------------------------------------------
  88
  89 extern "C" {
  90 static void gtk_filedialog_cancel_callback(GtkWidget *w, wxFileDialog *dialog)
  91 {
  92     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
  93     event.SetEventObject(dialog);
  94     dialog->GetEventHandler()->ProcessEvent(event);
  95 }
  96 }
  97
  98 extern "C" {
  99 static void gtk_filedialog_response_callback(GtkWidget *w,
 100                                              gint response,
 101                                              wxFileDialog *dialog)
 102 {
 103     wxapp_install_idle_handler();
 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
 112
 113 //-----------------------------------------------------------------------------
 114 // wxFileDialog
 115 //-----------------------------------------------------------------------------
 116
 117 IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxGenericFileDialog)
 118
 119 BEGIN_EVENT_TABLE(wxFileDialog,wxGenericFileDialog)
 120     EVT_BUTTON(wxID_OK, wxFileDialog::OnFakeOk)
 121 END_EVENT_TABLE()
 122
 123 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
 124                            const wxString& defaultDir,
 125                            const wxString& defaultFileName,
 126                            const wxString& wildCard,
 127                            long style, const wxPoint& pos,
 128                            const wxSize& sz,
 129                            const wxString& name)
 130     : wxGenericFileDialog(parent, message, defaultDir, defaultFileName,
 131                           wildCard, style, pos, sz, name, true )
 132 {
 133     if (!gtk_check_version(2,4,0))
 134     {
 135         m_needParent = false;
 136
 137         if (!PreCreation(parent, pos, wxDefaultSize) ||
 138             !CreateBase(parent, wxID_ANY, pos, wxDefaultSize, style,
 139                     wxDefaultValidator, wxT("filedialog")))
 140         {
 141             wxFAIL_MSG( wxT("wxFileDialog creation failed") );
 142             return;
 143         }
 144
 145         GtkFileChooserAction gtk_action;
 146         GtkWindow* gtk_parent = NULL;
 147         if (parent)
 148             gtk_parent = GTK_WINDOW( gtk_widget_get_toplevel(parent->m_widget) );
 149
 150         const gchar* ok_btn_stock;
 151         if ( style & wxFD_SAVE )
 152         {
 153             gtk_action = GTK_FILE_CHOOSER_ACTION_SAVE;
 154             ok_btn_stock = GTK_STOCK_SAVE;
 155         }
 156         else
 157         {
 158             gtk_action = GTK_FILE_CHOOSER_ACTION_OPEN;
 159             ok_btn_stock = GTK_STOCK_OPEN;
 160         }
 161
 162         m_widget = gtk_file_chooser_dialog_new(
 163                        wxGTK_CONV(m_message),
 164                        gtk_parent,
 165                        gtk_action,
 166                        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 167                        ok_btn_stock, GTK_RESPONSE_ACCEPT,
 168                        NULL);
 169
 170         gtk_dialog_set_default_response(GTK_DIALOG(m_widget), GTK_RESPONSE_ACCEPT);
 171
 172         if ( style & wxFD_MULTIPLE )
 173             gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(m_widget), true);
 174
 175         // gtk_widget_hide_on_delete is used here to avoid that Gtk automatically destroys
 176         // the dialog when the user press ESC on the dialog: in that case a second call to
 177         // ShowModal() would result in a bunch of Gtk-CRITICAL errors...
 178         g_signal_connect (G_OBJECT(m_widget),
 179                         "delete_event",
 180                         G_CALLBACK (gtk_widget_hide_on_delete),
 181                         (gpointer)this);
 182
 183         // local-only property could be set to false to allow non-local files to be loaded.
 184         // In that case get/set_uri(s) should be used instead of get/set_filename(s) everywhere
 185         // and the GtkFileChooserDialog should probably also be created with a backend,
 186         // e.g "gnome-vfs", "default", ... (gtk_file_chooser_dialog_new_with_backend).
 187         // Currently local-only is kept as the default - true:
 188         // gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(m_widget), true);
 189
 190         g_signal_connect (m_widget, "response",
 191             G_CALLBACK (gtk_filedialog_response_callback), this);
 192
 193         SetWildcard(wildCard);
 194
 195         if ( style & wxFD_SAVE )
 196         {
 197             if ( !defaultDir.empty() )
 198                 gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(m_widget),
 199                 wxConvFileName->cWX2MB(defaultDir));
 200
 201             gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget),
 202                 wxConvFileName->cWX2MB(defaultFileName));
 203
 204 #if GTK_CHECK_VERSION(2,7,3)
 205             if ((style & wxFD_OVERWRITE_PROMPT) && !gtk_check_version(2,7,3))
 206                 gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(m_widget), TRUE);
 207 #endif
 208         }
 209         else
 210         {
 211             if ( !defaultFileName.empty() )
 212             {
 213                 wxString dir;
 214                 if ( defaultDir.empty() )
 215                     dir = ::wxGetCwd();
 216                 else
 217                     dir = defaultDir;
 218
 219                 gtk_file_chooser_set_filename(
 220                     GTK_FILE_CHOOSER(m_widget),
 221                     wxConvFileName->cWX2MB( wxFileName(dir, defaultFileName).GetFullPath() ) );
 222             }
 223             else if ( !defaultDir.empty() )
 224                 gtk_file_chooser_set_current_folder( GTK_FILE_CHOOSER(m_widget),
 225                     wxConvFileName->cWX2MB(defaultDir) );
 226         }
 227     }
 228     else
 229         wxGenericFileDialog::Create( parent, message, defaultDir, defaultFileName, wildCard, style, pos );
 230 }
 231
 232 void wxFileDialog::OnFakeOk( wxCommandEvent &event )
 233 {
 234     if (!gtk_check_version(2,4,0))
 235         wxDialog::OnOK( event );
 236     else
 237         wxGenericFileDialog::OnListOk( event );
 238 }
 239
 240 int wxFileDialog::ShowModal()
 241 {
 242     if (!gtk_check_version(2,4,0))
 243         return wxDialog::ShowModal();
 244     else
 245         return wxGenericFileDialog::ShowModal();
 246 }
 247
 248 bool wxFileDialog::Show( bool show )
 249 {
 250     if (!gtk_check_version(2,4,0))
 251         return wxDialog::Show( show );
 252     else
 253         return wxGenericFileDialog::Show( show );
 254 }
 255
 256 void wxFileDialog::DoSetSize(int x, int y, int width, int height, int sizeFlags )
 257 {
 258     if (!m_wxwindow)
 259         return;
 260     else
 261         wxGenericFileDialog::DoSetSize( x, y, width, height, sizeFlags );
 262 }
 263
 264 wxString wxFileDialog::GetPath() const
 265 {
 266     if (!gtk_check_version(2,4,0))
 267         return wxConvFileName->cMB2WX(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(m_widget)));
 268     else
 269         return wxGenericFileDialog::GetPath();
 270 }
 271
 272 void wxFileDialog::GetFilenames(wxArrayString& files) const
 273 {
 274     if (!gtk_check_version(2,4,0))
 275     {
 276         GetPaths(files);
 277         for (size_t n = 0; n < files.GetCount(); ++n )
 278         {
 279             wxFileName file(files[n]);
 280             files[n] = file.GetFullName();
 281         }
 282     }
 283     else
 284         wxGenericFileDialog::GetFilenames( files );
 285 }
 286
 287 void wxFileDialog::GetPaths(wxArrayString& paths) const
 288 {
 289     if (!gtk_check_version(2,4,0))
 290     {
 291         paths.Empty();
 292         if (gtk_file_chooser_get_select_multiple(GTK_FILE_CHOOSER(m_widget)))
 293         {
 294             GSList *gpathsi = gtk_file_chooser_get_filenames(GTK_FILE_CHOOSER(m_widget));
 295             GSList *gpaths = gpathsi;
 296             while (gpathsi)
 297             {
 298                 wxString file(wxConvFileName->cMB2WX((gchar*) gpathsi->data));
 299                 paths.Add(file);
 300                 g_free(gpathsi->data);
 301                 gpathsi = gpathsi->next;
 302             }
 303
 304             g_slist_free(gpaths);
 305         }
 306         else
 307             paths.Add(GetPath());
 308     }
 309     else
 310         wxGenericFileDialog::GetPaths( paths );
 311 }
 312
 313 void wxFileDialog::SetMessage(const wxString& message)
 314 {
 315     if (!gtk_check_version(2,4,0))
 316     {
 317         m_message = message;
 318         SetTitle(message);
 319     }
 320     else
 321         wxGenericFileDialog::SetMessage( message );
 322 }
 323
 324 void wxFileDialog::SetPath(const wxString& path)
 325 {
 326     if (!gtk_check_version(2,4,0))
 327     {
 328         if (path.empty()) return;
 329
 330         gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(m_widget), wxConvFileName->cWX2MB(path));
 331     }
 332     else
 333         wxGenericFileDialog::SetPath( path );
 334 }
 335
 336 void wxFileDialog::SetDirectory(const wxString& dir)
 337 {
 338     if (!gtk_check_version(2,4,0))
 339     {
 340         if (wxDirExists(dir))
 341         {
 342             gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(m_widget), wxConvFileName->cWX2MB(dir));
 343         }
 344     }
 345     else
 346         wxGenericFileDialog::SetDirectory( dir );
 347 }
 348
 349 wxString wxFileDialog::GetDirectory() const
 350 {
 351     if (!gtk_check_version(2,4,0))
 352         return wxConvFileName->cMB2WX(
 353             gtk_file_chooser_get_current_folder( GTK_FILE_CHOOSER(m_widget) ) );
 354     else
 355         return wxGenericFileDialog::GetDirectory();
 356 }
 357
 358 void wxFileDialog::SetFilename(const wxString& name)
 359 {
 360     if (!gtk_check_version(2,4,0))
 361     {
 362         if (HasFlag(wxFD_SAVE))
 363             gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget), wxConvFileName->cWX2MB(name));
 364         else
 365             SetPath(wxFileName(GetDirectory(), name).GetFullPath());
 366     }
 367     else
 368         wxGenericFileDialog::SetFilename( name );
 369 }
 370
 371 wxString wxFileDialog::GetFilename() const
 372 {
 373     if (!gtk_check_version(2,4,0))
 374         return wxFileName(
 375             wxConvFileName->cMB2WX(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(m_widget))) ).GetFullName();
 376     else
 377         return wxGenericFileDialog::GetFilename();
 378 }
 379
 380 void wxFileDialog::SetWildcard(const wxString& wildCard)
 381 {
 382     if (!gtk_check_version(2,4,0))
 383     {
 384         // parse filters
 385         wxArrayString wildDescriptions, wildFilters;
 386         if (!wxParseCommonDialogsFilter(wildCard, wildDescriptions, wildFilters))
 387         {
 388             wxFAIL_MSG( wxT("wxFileDialog::SetWildCard - bad wildcard string") );
 389         }
 390         else
 391         {
 392             // Parsing went fine. Set m_wildCard to be returned by wxFileDialogBase::GetWildcard
 393             m_wildCard = wildCard;
 394
 395             GtkFileChooser* chooser = GTK_FILE_CHOOSER(m_widget);
 396
 397             // empty current filter list:
 398             GSList* ifilters = gtk_file_chooser_list_filters(chooser);
 399             GSList* filters = ifilters;
 400
 401             while (ifilters)
 402             {
 403                 gtk_file_chooser_remove_filter(chooser,GTK_FILE_FILTER(ifilters->data));
 404                 ifilters = ifilters->next;
 405             }
 406             g_slist_free(filters);
 407
 408             // add parsed to GtkChooser
 409             for (size_t n = 0; n < wildFilters.GetCount(); ++n)
 410             {
 411                 GtkFileFilter* filter = gtk_file_filter_new();
 412                 gtk_file_filter_set_name(filter, wxGTK_CONV(wildDescriptions[n]));
 413
 414                 wxStringTokenizer exttok(wildFilters[n], wxT(";"));
 415                 while (exttok.HasMoreTokens())
 416                 {
 417                     wxString token = exttok.GetNextToken();
 418                     gtk_file_filter_add_pattern(filter, wxGTK_CONV(token));
 419                 }
 420
 421                 gtk_file_chooser_add_filter(chooser, filter);
 422             }
 423
 424             // Reset the filter index
 425             SetFilterIndex(0);
 426         }
 427     }
 428     else
 429         wxGenericFileDialog::SetWildcard( wildCard );
 430 }
 431
 432 void wxFileDialog::SetFilterIndex(int filterIndex)
 433 {
 434
 435     if (!gtk_check_version(2,4,0))
 436     {
 437         gpointer filter;
 438         GtkFileChooser *chooser = GTK_FILE_CHOOSER(m_widget);
 439         GSList *filters = gtk_file_chooser_list_filters(chooser);
 440
 441         filter = g_slist_nth_data(filters, filterIndex);
 442
 443         if (filter != NULL)
 444         {
 445             gtk_file_chooser_set_filter(chooser, GTK_FILE_FILTER(filter));
 446         }
 447         else
 448         {
 449             wxFAIL_MSG( wxT("wxFileDialog::SetFilterIndex - bad filter index") );
 450         }
 451
 452         g_slist_free(filters);
 453     }
 454     else
 455         wxGenericFileDialog::SetFilterIndex( filterIndex );
 456 }
 457
 458 int wxFileDialog::GetFilterIndex() const
 459 {
 460     if (!gtk_check_version(2,4,0))
 461     {
 462         GtkFileChooser *chooser = GTK_FILE_CHOOSER(m_widget);
 463         GtkFileFilter *filter = gtk_file_chooser_get_filter(chooser);
 464         GSList *filters = gtk_file_chooser_list_filters(chooser);
 465         gint index = g_slist_index(filters, filter);
 466         g_slist_free(filters);
 467
 468         if (index == -1)
 469         {
 470             wxFAIL_MSG( wxT("wxFileDialog::GetFilterIndex - bad filter index returned by gtk+") );
 471             return 0;
 472         }
 473         else
 474             return index;
 475     }
 476     else
 477                 return wxGenericFileDialog::GetFilterIndex();
 478 }
 479
 480 #endif // wxUSE_FILEDLG &&  __WXGTK24__