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 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 // Include setup.h to get wxUSE flags for compilers that do not support precompilation of headers
  14 #include "wx/setup.h"
  15
  16 #if wxUSE_FILEDLG
  17
  18 #include "wx/filedlg.h"
  19
  20 #ifdef __WXGTK24__
  21
  22 #include <gtk/gtk.h>
  23 #include "wx/gtk/private.h"
  24
  25 #include <unistd.h> // chdir
  26
  27 #include "wx/intl.h"
  28 #include "wx/filename.h" // wxFilename
  29 #include "wx/tokenzr.h" // wxStringTokenizer
  30 #include "wx/filefn.h" // ::wxGetCwd
  31 #include "wx/msgdlg.h" // wxMessageDialog
  32
  33 //-----------------------------------------------------------------------------
  34 // idle system
  35 //-----------------------------------------------------------------------------
  36
  37 extern void wxapp_install_idle_handler();
  38
  39 //-----------------------------------------------------------------------------
  40 // "clicked" for OK-button
  41 //-----------------------------------------------------------------------------
  42
  43 extern "C" {
  44 static void gtk_filedialog_ok_callback(GtkWidget *widget, wxFileDialog *dialog)
  45 {
  46     int style = dialog->GetStyle();
  47     gchar* filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget));
  48
  49     // gtk version numbers must be identical with the one in ctor (that calls set_do_overwrite_confirmation)
  50 #if GTK_CHECK_VERSION(2,7,3)
  51     if(gtk_check_version(2,7,3) != NULL)
  52 #endif
  53     if ((style & wxSAVE) && (style & wxOVERWRITE_PROMPT))
  54     {
  55         if ( g_file_test(filename, G_FILE_TEST_EXISTS) )
  56         {
  57             wxString msg;
  58
  59             msg.Printf(
  60                 _("File '%s' already exists, do you really want to overwrite it?"),
  61                 wxString(wxConvFileName->cMB2WX(filename)).c_str());
  62
  63             wxMessageDialog dlg(dialog, msg, _("Confirm"),
  64                                wxYES_NO | wxICON_QUESTION);
  65             if (dlg.ShowModal() != wxID_YES)
  66                 return;
  67         }
  68     }
  69
  70     // change to the directory where the user went if asked
  71     if (style & wxCHANGE_DIR)
  72     {
  73         // Use chdir to not care about filename encodings
  74         gchar* folder = g_path_get_dirname(filename);
  75         chdir(folder);
  76         g_free(folder);
  77     }
  78
  79     g_free(filename);
  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 static void gtk_filedialog_cancel_callback(GtkWidget *WXUNUSED(w),
  93                                            wxFileDialog *dialog)
  94 {
  95     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
  96     event.SetEventObject(dialog);
  97     dialog->GetEventHandler()->ProcessEvent(event);
  98 }
  99 }
 100
 101 extern "C" {
 102 static void gtk_filedialog_response_callback(GtkWidget *w,
 103                                              gint response,
 104                                              wxFileDialog *dialog)
 105 {
 106     wxapp_install_idle_handler();
 107
 108     if (response == GTK_RESPONSE_ACCEPT)
 109         gtk_filedialog_ok_callback(w, dialog);
 110     else if (response == GTK_RESPONSE_CANCEL)
 111         gtk_filedialog_cancel_callback(w, dialog);
 112     else // "delete"
 113     {
 114         gtk_filedialog_cancel_callback(w, dialog);
 115         dialog->m_destroyed_by_delete = true;
 116     }
 117 }
 118 }
 119
 120 #endif // __WXGTK24__
 121
 122 //-----------------------------------------------------------------------------
 123 // wxFileDialog
 124 //-----------------------------------------------------------------------------
 125
 126 IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxGenericFileDialog)
 127
 128 BEGIN_EVENT_TABLE(wxFileDialog,wxGenericFileDialog)
 129     EVT_BUTTON(wxID_OK, wxFileDialog::OnFakeOk)
 130 END_EVENT_TABLE()
 131
 132 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
 133                            const wxString& defaultDir,
 134                            const wxString& defaultFileName,
 135                            const wxString& wildCard,
 136                            long style, const wxPoint& pos)
 137     : wxGenericFileDialog(parent, message, defaultDir, defaultFileName,
 138                        wildCard, style, pos, true )
 139 {
 140 #ifdef __WXGTK24__
 141     if (!gtk_check_version(2,4,0))
 142     {
 143         wxASSERT_MSG( !( (style & wxSAVE) && (style & wxMULTIPLE) ), wxT("wxFileDialog - wxMULTIPLE used on a save dialog" ) );
 144         m_needParent = false;
 145         m_destroyed_by_delete = false;
 146
 147         if (!PreCreation(parent, pos, wxDefaultSize) ||
 148             !CreateBase(parent, wxID_ANY, pos, wxDefaultSize, style,
 149                     wxDefaultValidator, wxT("filedialog")))
 150         {
 151             wxFAIL_MSG( wxT("wxFileDialog creation failed") );
 152             return;
 153         }
 154
 155         GtkFileChooserAction gtk_action;
 156         GtkWindow* gtk_parent = NULL;
 157         if (parent)
 158             gtk_parent = GTK_WINDOW( gtk_widget_get_toplevel(parent->m_widget) );
 159
 160         const gchar* ok_btn_stock;
 161         if ( style & wxSAVE )
 162         {
 163             gtk_action = GTK_FILE_CHOOSER_ACTION_SAVE;
 164             ok_btn_stock = GTK_STOCK_SAVE;
 165         }
 166         else
 167         {
 168             gtk_action = GTK_FILE_CHOOSER_ACTION_OPEN;
 169             ok_btn_stock = GTK_STOCK_OPEN;
 170         }
 171
 172         m_widget = gtk_file_chooser_dialog_new(
 173                        wxGTK_CONV(m_message),
 174                        gtk_parent,
 175                        gtk_action,
 176                        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 177                        ok_btn_stock, GTK_RESPONSE_ACCEPT,
 178                        NULL);
 179
 180         if ( style & wxMULTIPLE )
 181             gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(m_widget), true);
 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(G_OBJECT(m_widget), "response",
 191             GTK_SIGNAL_FUNC(gtk_filedialog_response_callback), (gpointer)this);
 192
 193         SetWildcard(wildCard);
 194
 195         if ( style & wxSAVE )
 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 (!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 #endif
 230         wxGenericFileDialog::Create( parent, message, defaultDir, defaultFileName, wildCard, style, pos );
 231 }
 232
 233 wxFileDialog::~wxFileDialog()
 234 {
 235 #ifdef __WXGTK24__
 236     if (!gtk_check_version(2,4,0))
 237     {
 238         if (m_destroyed_by_delete)
 239             m_widget = NULL;
 240     }
 241 #endif
 242 }
 243
 244 void wxFileDialog::OnFakeOk( wxCommandEvent &event )
 245 {
 246 #ifdef __WXGTK24__
 247     if (!gtk_check_version(2,4,0))
 248         wxDialog::OnOK( event );
 249     else
 250 #endif
 251         wxGenericFileDialog::OnListOk( event );
 252 }
 253
 254 int wxFileDialog::ShowModal()
 255 {
 256 #ifdef __WXGTK24__
 257     if (!gtk_check_version(2,4,0))
 258         return wxDialog::ShowModal();
 259     else
 260 #endif
 261         return wxGenericFileDialog::ShowModal();
 262 }
 263
 264 bool wxFileDialog::Show( bool show )
 265 {
 266 #ifdef __WXGTK24__
 267     if (!gtk_check_version(2,4,0))
 268         return wxDialog::Show( show );
 269     else
 270 #endif
 271         return wxGenericFileDialog::Show( show );
 272 }
 273
 274 void wxFileDialog::DoSetSize(int x, int y, int width, int height, int sizeFlags )
 275 {
 276     if (!m_wxwindow)
 277         return;
 278     else
 279         wxGenericFileDialog::DoSetSize( x, y, width, height, sizeFlags );
 280 }
 281
 282 wxString wxFileDialog::GetPath() const
 283 {
 284 #ifdef __WXGTK24__
 285     if (!gtk_check_version(2,4,0))
 286         return wxConvFileName->cMB2WX(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(m_widget)));
 287     else
 288 #endif
 289         return wxGenericFileDialog::GetPath();
 290 }
 291
 292 void wxFileDialog::GetFilenames(wxArrayString& files) const
 293 {
 294 #ifdef __WXGTK24__
 295     if (!gtk_check_version(2,4,0))
 296     {
 297         GetPaths(files);
 298         for (size_t n = 0; n < files.GetCount(); ++n )
 299         {
 300             wxFileName file(files[n]);
 301             files[n] = file.GetFullName();
 302         }
 303     }
 304     else
 305 #endif
 306         wxGenericFileDialog::GetFilenames( files );
 307 }
 308
 309 void wxFileDialog::GetPaths(wxArrayString& paths) const
 310 {
 311 #ifdef __WXGTK24__
 312     if (!gtk_check_version(2,4,0))
 313     {
 314         paths.Empty();
 315         if (gtk_file_chooser_get_select_multiple(GTK_FILE_CHOOSER(m_widget)))
 316         {
 317             GSList *gpathsi = gtk_file_chooser_get_filenames(GTK_FILE_CHOOSER(m_widget));
 318             GSList *gpaths = gpathsi;
 319             while (gpathsi)
 320             {
 321                 wxString file(wxConvFileName->cMB2WX((gchar*) gpathsi->data));
 322                 paths.Add(file);
 323                 g_free(gpathsi->data);
 324                 gpathsi = gpathsi->next;
 325             }
 326
 327             g_slist_free(gpaths);
 328         }
 329         else
 330             paths.Add(GetPath());
 331     }
 332     else
 333 #endif
 334         wxGenericFileDialog::GetPaths( paths );
 335 }
 336
 337 void wxFileDialog::SetMessage(const wxString& message)
 338 {
 339 #ifdef __WXGTK24__
 340     if (!gtk_check_version(2,4,0))
 341     {
 342         m_message = message;
 343         SetTitle(message);
 344     }
 345     else
 346 #endif
 347         wxGenericFileDialog::SetMessage( message );
 348 }
 349
 350 void wxFileDialog::SetPath(const wxString& path)
 351 {
 352 #ifdef __WXGTK24__
 353     if (!gtk_check_version(2,4,0))
 354     {
 355         if (path.empty()) return;
 356
 357         gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(m_widget), wxConvFileName->cWX2MB(path));
 358     }
 359     else
 360 #endif
 361         wxGenericFileDialog::SetPath( path );
 362 }
 363
 364 void wxFileDialog::SetDirectory(const wxString& dir)
 365 {
 366 #ifdef __WXGTK24__
 367     if (!gtk_check_version(2,4,0))
 368     {
 369         if (wxDirExists(dir))
 370         {
 371             gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(m_widget), wxConvFileName->cWX2MB(dir));
 372         }
 373     }
 374     else
 375 #endif
 376         wxGenericFileDialog::SetDirectory( dir );
 377 }
 378
 379 wxString wxFileDialog::GetDirectory() const
 380 {
 381 #ifdef __WXGTK24__
 382     if (!gtk_check_version(2,4,0))
 383         return wxConvFileName->cMB2WX(
 384             gtk_file_chooser_get_current_folder( GTK_FILE_CHOOSER(m_widget) ) );
 385     else
 386 #endif
 387         return wxGenericFileDialog::GetDirectory();
 388 }
 389
 390 void wxFileDialog::SetFilename(const wxString& name)
 391 {
 392 #ifdef __WXGTK24__
 393     if (!gtk_check_version(2,4,0))
 394     {
 395         if (GetStyle() & wxSAVE)
 396             gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget), wxConvFileName->cWX2MB(name));
 397         else
 398             SetPath(wxFileName(GetDirectory(), name).GetFullPath());
 399     }
 400     else
 401 #endif
 402         wxGenericFileDialog::SetFilename( name );
 403 }
 404
 405 wxString wxFileDialog::GetFilename() const
 406 {
 407 #ifdef __WXGTK24__
 408     if (!gtk_check_version(2,4,0))
 409         return wxFileName(
 410             wxConvFileName->cMB2WX(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(m_widget))) ).GetFullName();
 411     else
 412 #endif
 413         return wxGenericFileDialog::GetFilename();
 414 }
 415
 416 void wxFileDialog::SetWildcard(const wxString& wildCard)
 417 {
 418 #ifdef __WXGTK24__
 419     if (!gtk_check_version(2,4,0))
 420     {
 421         // parse filters
 422         wxArrayString wildDescriptions, wildFilters;
 423         if (!wxParseCommonDialogsFilter(wildCard, wildDescriptions, wildFilters))
 424         {
 425             wxFAIL_MSG( wxT("wxFileDialog::SetWildCard - bad wildcard string") );
 426         }
 427         else
 428         {
 429             // Parsing went fine. Set m_wildCard to be returned by wxFileDialogBase::GetWildcard
 430             m_wildCard = wildCard;
 431
 432             GtkFileChooser* chooser = GTK_FILE_CHOOSER(m_widget);
 433
 434             // empty current filter list:
 435             GSList* ifilters = gtk_file_chooser_list_filters(chooser);
 436             GSList* filters = ifilters;
 437
 438             while (ifilters)
 439             {
 440                 gtk_file_chooser_remove_filter(chooser,GTK_FILE_FILTER(ifilters->data));
 441                 ifilters = ifilters->next;
 442             }
 443             g_slist_free(filters);
 444
 445             // add parsed to GtkChooser
 446             for (size_t n = 0; n < wildFilters.GetCount(); ++n)
 447             {
 448                 GtkFileFilter* filter = gtk_file_filter_new();
 449                 gtk_file_filter_set_name(filter, wxGTK_CONV(wildDescriptions[n]));
 450
 451                 wxStringTokenizer exttok(wildFilters[n], wxT(";"));
 452                 while (exttok.HasMoreTokens())
 453                 {
 454                     wxString token = exttok.GetNextToken();
 455                     gtk_file_filter_add_pattern(filter, wxGTK_CONV(token));
 456                 }
 457
 458                 gtk_file_chooser_add_filter(chooser, filter);
 459             }
 460
 461             // Reset the filter index
 462             SetFilterIndex(0);
 463         }
 464     }
 465     else
 466 #endif
 467         wxGenericFileDialog::SetWildcard( wildCard );
 468 }
 469
 470 void wxFileDialog::SetFilterIndex(int filterIndex)
 471 {
 472 #ifdef __WXGTK24__
 473     if (!gtk_check_version(2,4,0))
 474     {
 475         gpointer filter;
 476         GtkFileChooser *chooser = GTK_FILE_CHOOSER(m_widget);
 477         GSList *filters = gtk_file_chooser_list_filters(chooser);
 478
 479         filter = g_slist_nth_data(filters, filterIndex);
 480
 481         if (filter != NULL)
 482         {
 483             gtk_file_chooser_set_filter(chooser, GTK_FILE_FILTER(filter));
 484         }
 485         else
 486         {
 487             wxFAIL_MSG( wxT("wxFileDialog::SetFilterIndex - bad filter index") );
 488         }
 489
 490         g_slist_free(filters);
 491     }
 492     else
 493 #endif
 494         wxGenericFileDialog::SetFilterIndex( filterIndex );
 495 }
 496
 497 int wxFileDialog::GetFilterIndex() const
 498 {
 499 #ifdef __WXGTK24__
 500     if (!gtk_check_version(2,4,0))
 501     {
 502         GtkFileChooser *chooser = GTK_FILE_CHOOSER(m_widget);
 503         GtkFileFilter *filter = gtk_file_chooser_get_filter(chooser);
 504         GSList *filters = gtk_file_chooser_list_filters(chooser);
 505         gint index = g_slist_index(filters, filter);
 506         g_slist_free(filters);
 507
 508         if (index == -1)
 509         {
 510             wxFAIL_MSG( wxT("wxFileDialog::GetFilterIndex - bad filter index returned by gtk+") );
 511             return 0;
 512         }
 513         else
 514             return index;
 515     }
 516     else
 517 #endif
 518                 return wxGenericFileDialog::GetFilterIndex();
 519 }
 520
 521 #endif // wxUSE_FILEDLG