src/gtk/filedlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  11 #pragma implementation "filedlggtk.h"
  12 #endif
  13
  14 // For compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 // Include setup.h to get wxUSE flags for compilers that do not support precompilation of headers
  18 #include "wx/setup.h"
  19
  20 #if wxUSE_FILEDLG
  21
  22 #include "wx/filedlg.h"
  23
  24 #ifdef __WXGTK24__
  25
  26 #include <gtk/gtk.h>
  27 #include "wx/gtk/private.h"
  28
  29 #include <unistd.h> // chdir
  30
  31 #include "wx/intl.h"
  32 #include "wx/filename.h" // wxFilename
  33 #include "wx/tokenzr.h" // wxStringTokenizer
  34 #include "wx/filefn.h" // ::wxGetCwd
  35 #include "wx/msgdlg.h" // wxMessageDialog
  36
  37 //-----------------------------------------------------------------------------
  38 // idle system
  39 //-----------------------------------------------------------------------------
  40
  41 extern void wxapp_install_idle_handler();
  42 extern bool g_isIdle;
  43
  44 //-----------------------------------------------------------------------------
  45 // "clicked" for OK-button
  46 //-----------------------------------------------------------------------------
  47
  48 extern "C" {
  49 static void gtk_filedialog_ok_callback(GtkWidget *widget, wxFileDialog *dialog)
  50 {
  51     int style = dialog->GetStyle();
  52     gchar* filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget));
  53
  54     if ((style & wxSAVE) && (style & wxOVERWRITE_PROMPT))
  55     {
  56         if ( g_file_test(filename, G_FILE_TEST_EXISTS) )
  57         {
  58             wxString msg;
  59
  60             msg.Printf(
  61                 _("File '%s' already exists, do you really want to overwrite it?"),
  62                 wxString(wxConvFileName->cMB2WX(filename)).c_str());
  63
  64             wxMessageDialog dlg(dialog, msg, _("Confirm"),
  65                                wxYES_NO | wxICON_QUESTION);
  66             if (dlg.ShowModal() != wxID_YES)
  67                 return;
  68         }
  69     }
  70
  71     // change to the directory where the user went if asked
  72     if (style & wxCHANGE_DIR)
  73     {
  74         // Use chdir to not care about filename encodings
  75         gchar* folder = g_path_get_dirname(filename);
  76         chdir(folder);
  77         g_free(folder);
  78     }
  79
  80     g_free(filename);
  81
  82     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_OK);
  83     event.SetEventObject(dialog);
  84     dialog->GetEventHandler()->ProcessEvent(event);
  85 }
  86 }
  87
  88 //-----------------------------------------------------------------------------
  89 // "clicked" for Cancel-button
  90 //-----------------------------------------------------------------------------
  91
  92 extern "C" {
  93 static void gtk_filedialog_cancel_callback(GtkWidget *WXUNUSED(w),
  94                                            wxFileDialog *dialog)
  95 {
  96     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
  97     event.SetEventObject(dialog);
  98     dialog->GetEventHandler()->ProcessEvent(event);
  99 }
 100 }
 101
 102 extern "C" {
 103 static void gtk_filedialog_response_callback(GtkWidget *w,
 104                                              gint response,
 105                                              wxFileDialog *dialog)
 106 {
 107     wxapp_install_idle_handler();
 108
 109     if (response == GTK_RESPONSE_ACCEPT)
 110         gtk_filedialog_ok_callback(w, dialog);
 111     else if (response == GTK_RESPONSE_CANCEL)
 112         gtk_filedialog_cancel_callback(w, dialog);
 113     else // "delete"
 114     {
 115         gtk_filedialog_cancel_callback(w, dialog);
 116         dialog->m_destroyed_by_delete = true;
 117     }
 118 }
 119 }
 120
 121 #endif // __WXGTK24__
 122
 123 //-----------------------------------------------------------------------------
 124 // wxFileDialog
 125 //-----------------------------------------------------------------------------
 126
 127 IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxGenericFileDialog)
 128
 129 BEGIN_EVENT_TABLE(wxFileDialog,wxGenericFileDialog)
 130     EVT_BUTTON(wxID_OK, wxFileDialog::OnFakeOk)
 131 END_EVENT_TABLE()
 132
 133 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
 134                            const wxString& defaultDir,
 135                            const wxString& defaultFileName,
 136                            const wxString& wildCard,
 137                            long style, const wxPoint& pos)
 138     : wxGenericFileDialog(parent, message, defaultDir, defaultFileName,
 139                        wildCard, style, pos, true )
 140 {
 141 #ifdef __WXGTK24__
 142     if (!gtk_check_version(2,4,0))
 143     {
 144         wxASSERT_MSG( !( (style & wxSAVE) && (style & wxMULTIPLE) ), wxT("wxFileDialog - wxMULTIPLE used on a save dialog" ) );
 145         m_needParent = false;
 146         m_destroyed_by_delete = false;
 147
 148         if (!PreCreation(parent, pos, wxDefaultSize) ||
 149             !CreateBase(parent, wxID_ANY, pos, wxDefaultSize, style,
 150                     wxDefaultValidator, wxT("filedialog")))
 151         {
 152             wxFAIL_MSG( wxT("wxFileDialog creation failed") );
 153             return;
 154         }
 155
 156         GtkFileChooserAction gtk_action;
 157         GtkWindow* gtk_parent = NULL;
 158         if (parent)
 159             gtk_parent = GTK_WINDOW(parent->m_widget);
 160
 161         gchar* ok_btn_stock;
 162         if ( style & wxSAVE )
 163         {
 164             gtk_action = GTK_FILE_CHOOSER_ACTION_SAVE;
 165             ok_btn_stock = GTK_STOCK_SAVE;
 166         }
 167         else
 168         {
 169             gtk_action = GTK_FILE_CHOOSER_ACTION_OPEN;
 170             ok_btn_stock = GTK_STOCK_OPEN;
 171         }
 172
 173         m_widget = gtk_file_chooser_dialog_new(
 174                        wxGTK_CONV(m_message),
 175                        gtk_parent,
 176                        gtk_action,
 177                        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 178                        ok_btn_stock, GTK_RESPONSE_ACCEPT,
 179                        NULL);
 180
 181         if ( style & wxMULTIPLE )
 182             gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(m_widget), true);
 183
 184         // local-only property could be set to false to allow non-local files to be loaded.
 185         // In that case get/set_uri(s) should be used instead of get/set_filename(s) everywhere
 186         // and the GtkFileChooserDialog should probably also be created with a backend,
 187         // e.g "gnome-vfs", "default", ... (gtk_file_chooser_dialog_new_with_backend).
 188         // Currently local-only is kept as the default - true:
 189         // gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(m_widget), true);
 190
 191         g_signal_connect(G_OBJECT(m_widget), "response",
 192             GTK_SIGNAL_FUNC(gtk_filedialog_response_callback), (gpointer)this);
 193
 194         SetWildcard(wildCard);
 195
 196         if ( style & wxSAVE )
 197         {
 198             if ( !defaultDir.IsEmpty() )
 199                 gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(m_widget),
 200                 wxConvFileName->cWX2MB(defaultDir));
 201
 202             gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget),
 203                 wxConvFileName->cWX2MB(defaultFileName));
 204         }
 205         else
 206         {
 207             if ( !defaultFileName.IsEmpty() )
 208             {
 209                 wxString dir;
 210                 if ( defaultDir.IsEmpty() )
 211                     dir = ::wxGetCwd();
 212                 else
 213                     dir = defaultDir;
 214
 215                 gtk_file_chooser_set_filename(
 216                     GTK_FILE_CHOOSER(m_widget),
 217                     wxConvFileName->cWX2MB( wxFileName(dir, defaultFileName).GetFullPath() ) );
 218             }
 219             else if ( !defaultDir.IsEmpty() )
 220                 gtk_file_chooser_set_current_folder( GTK_FILE_CHOOSER(m_widget),
 221                     wxConvFileName->cWX2MB(defaultDir) );
 222         }
 223     }
 224     else
 225 #endif
 226         wxGenericFileDialog::Create( parent, message, defaultDir, defaultFileName, wildCard, style, pos );
 227 }
 228
 229 wxFileDialog::~wxFileDialog()
 230 {
 231 #ifdef __WXGTK24__
 232     if (!gtk_check_version(2,4,0))
 233     {
 234         if (m_destroyed_by_delete)
 235             m_widget = NULL;
 236     }
 237 #endif
 238 }
 239
 240 void wxFileDialog::OnFakeOk( wxCommandEvent &event )
 241 {
 242 #ifdef __WXGTK24__
 243     if (!gtk_check_version(2,4,0))
 244         wxDialog::OnOK( event );
 245     else
 246 #endif
 247         wxGenericFileDialog::OnListOk( event );
 248 }
 249
 250 int wxFileDialog::ShowModal()
 251 {
 252 #ifdef __WXGTK24__
 253     if (!gtk_check_version(2,4,0))
 254         return wxDialog::ShowModal();
 255     else
 256 #endif
 257         return wxGenericFileDialog::ShowModal();
 258 }
 259
 260 bool wxFileDialog::Show( bool show )
 261 {
 262 #ifdef __WXGTK24__
 263     if (!gtk_check_version(2,4,0))
 264         return wxDialog::Show( show );
 265     else
 266 #endif
 267         return wxGenericFileDialog::Show( show );
 268 }
 269
 270 wxString wxFileDialog::GetPath() const
 271 {
 272 #ifdef __WXGTK24__
 273     if (!gtk_check_version(2,4,0))
 274         return wxConvFileName->cMB2WX(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(m_widget)));
 275     else
 276 #endif
 277         return wxGenericFileDialog::GetPath();
 278 }
 279
 280 void wxFileDialog::GetFilenames(wxArrayString& files) const
 281 {
 282 #ifdef __WXGTK24__
 283     if (!gtk_check_version(2,4,0))
 284     {
 285         GetPaths(files);
 286         for (size_t n = 0; n < files.GetCount(); ++n )
 287         {
 288             wxFileName file(files[n]);
 289             files[n] = file.GetFullName();
 290         }
 291     }
 292     else
 293 #endif
 294         wxGenericFileDialog::GetFilenames( files );
 295 }
 296
 297 void wxFileDialog::GetPaths(wxArrayString& paths) const
 298 {
 299 #ifdef __WXGTK24__
 300     if (!gtk_check_version(2,4,0))
 301     {
 302         paths.Empty();
 303         if (gtk_file_chooser_get_select_multiple(GTK_FILE_CHOOSER(m_widget)))
 304         {
 305             GSList *gpathsi = gtk_file_chooser_get_filenames(GTK_FILE_CHOOSER(m_widget));
 306             GSList *gpaths = gpathsi;
 307             while (gpathsi)
 308             {
 309                 wxString file(wxConvFileName->cMB2WX((gchar*) gpathsi->data));
 310                 paths.Add(file);
 311                 g_free(gpathsi->data);
 312                 gpathsi = gpathsi->next;
 313             }
 314
 315             g_slist_free(gpaths);
 316         }
 317         else
 318             paths.Add(GetPath());
 319     }
 320     else
 321 #endif
 322         wxGenericFileDialog::GetPaths( paths );
 323 }
 324
 325 void wxFileDialog::SetMessage(const wxString& message)
 326 {
 327 #ifdef __WXGTK24__
 328     if (!gtk_check_version(2,4,0))
 329     {
 330         m_message = message;
 331         SetTitle(message);
 332     }
 333     else
 334 #endif
 335         wxGenericFileDialog::SetMessage( message );
 336 }
 337
 338 void wxFileDialog::SetPath(const wxString& path)
 339 {
 340 #ifdef __WXGTK24__
 341     if (!gtk_check_version(2,4,0))
 342     {
 343         if (path.empty()) return;
 344
 345         gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(m_widget), wxConvFileName->cWX2MB(path));
 346     }
 347     else
 348 #endif
 349         wxGenericFileDialog::SetPath( path );
 350 }
 351
 352 void wxFileDialog::SetDirectory(const wxString& dir)
 353 {
 354 #ifdef __WXGTK24__
 355     if (!gtk_check_version(2,4,0))
 356     {
 357         if (wxPathExists(dir))
 358         {
 359             gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(m_widget), wxConvFileName->cWX2MB(dir));
 360         }
 361     }
 362     else
 363 #endif
 364         wxGenericFileDialog::SetDirectory( dir );
 365 }
 366
 367 wxString wxFileDialog::GetDirectory() const
 368 {
 369 #ifdef __WXGTK24__
 370     if (!gtk_check_version(2,4,0))
 371         return wxConvFileName->cMB2WX(
 372             gtk_file_chooser_get_current_folder( GTK_FILE_CHOOSER(m_widget) ) );
 373     else
 374 #endif
 375         return wxGenericFileDialog::GetDirectory();
 376 }
 377
 378 void wxFileDialog::SetFilename(const wxString& name)
 379 {
 380 #ifdef __WXGTK24__
 381     if (!gtk_check_version(2,4,0))
 382     {
 383         if (GetStyle() & wxSAVE)
 384             gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget), wxConvFileName->cWX2MB(name));
 385         else
 386             SetPath(wxFileName(GetDirectory(), name).GetFullPath());
 387     }
 388     else
 389 #endif
 390         wxGenericFileDialog::SetFilename( name );
 391 }
 392
 393 wxString wxFileDialog::GetFilename() const
 394 {
 395 #ifdef __WXGTK24__
 396     if (!gtk_check_version(2,4,0))
 397         return wxFileName(
 398             wxConvFileName->cMB2WX(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(m_widget))) ).GetFullName();
 399     else
 400 #endif
 401         return wxGenericFileDialog::GetFilename();
 402 }
 403
 404 void wxFileDialog::SetWildcard(const wxString& wildCard)
 405 {
 406 #ifdef __WXGTK24__
 407     if (!gtk_check_version(2,4,0))
 408     {
 409         // parse filters
 410         wxArrayString wildDescriptions, wildFilters;
 411         if (!wxParseCommonDialogsFilter(wildCard, wildDescriptions, wildFilters))
 412         {
 413             wxFAIL_MSG( wxT("wxFileDialog::SetWildCard - bad wildcard string") );
 414         }
 415         else
 416         {
 417             // Parsing went fine. Set m_wildCard to be returned by wxFileDialogBase::GetWildcard
 418             m_wildCard = wildCard;
 419
 420             GtkFileChooser* chooser = GTK_FILE_CHOOSER(m_widget);
 421
 422             // empty current filter list:
 423             GSList* ifilters = gtk_file_chooser_list_filters(chooser);
 424             GSList* filters = ifilters;
 425
 426             while (ifilters)
 427             {
 428                 gtk_file_chooser_remove_filter(chooser,GTK_FILE_FILTER(ifilters->data));
 429                 ifilters = ifilters->next;
 430             }
 431             g_slist_free(filters);
 432
 433             // add parsed to GtkChooser
 434             for (size_t n = 0; n < wildFilters.GetCount(); ++n)
 435             {
 436                 GtkFileFilter* filter = gtk_file_filter_new();
 437                 gtk_file_filter_set_name(filter, wxGTK_CONV(wildDescriptions[n]));
 438
 439                 wxStringTokenizer exttok(wildFilters[n], wxT(";"));
 440                 while (exttok.HasMoreTokens())
 441                 {
 442                     wxString token = exttok.GetNextToken();
 443                     gtk_file_filter_add_pattern(filter, wxGTK_CONV(token));
 444                 }
 445
 446                 gtk_file_chooser_add_filter(chooser, filter);
 447             }
 448
 449             // Reset the filter index
 450             SetFilterIndex(0);
 451         }
 452     }
 453     else
 454 #endif
 455         wxGenericFileDialog::SetWildcard( wildCard );
 456 }
 457
 458 void wxFileDialog::SetFilterIndex(int filterIndex)
 459 {
 460 #ifdef __WXGTK24__
 461     if (!gtk_check_version(2,4,0))
 462     {
 463         gpointer filter;
 464         GtkFileChooser *chooser = GTK_FILE_CHOOSER(m_widget);
 465         GSList *filters = gtk_file_chooser_list_filters(chooser);
 466
 467         filter = g_slist_nth_data(filters, filterIndex);
 468
 469         if (filter != NULL)
 470         {
 471             gtk_file_chooser_set_filter(chooser, GTK_FILE_FILTER(filter));
 472         }
 473         else
 474         {
 475             wxFAIL_MSG( wxT("wxFileDialog::SetFilterIndex - bad filter index") );
 476         }
 477
 478         g_slist_free(filters);
 479     }
 480     else
 481 #endif
 482         wxGenericFileDialog::SetFilterIndex( filterIndex );
 483 }
 484
 485 int wxFileDialog::GetFilterIndex() const
 486 {
 487 #ifdef __WXGTK24__
 488     if (!gtk_check_version(2,4,0))
 489     {
 490         GtkFileChooser *chooser = GTK_FILE_CHOOSER(m_widget);
 491         GtkFileFilter *filter = gtk_file_chooser_get_filter(chooser);
 492         GSList *filters = gtk_file_chooser_list_filters(chooser);
 493         gint index = g_slist_index(filters, filter);
 494         g_slist_free(filters);
 495
 496         if (index == -1)
 497         {
 498             wxFAIL_MSG( wxT("wxFileDialog::GetFilterIndex - bad filter index returned by gtk+") );
 499             return 0;
 500         }
 501         else
 502             return index;
 503     }
 504     else
 505 #endif
 506                 return wxGenericFileDialog::GetFilterIndex();
 507 }
 508
 509 #endif // wxUSE_FILEDLG