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.empty() )
 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.empty() )
 208             {
 209                 wxString dir;
 210                 if ( defaultDir.empty() )
 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.empty() )
 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 void wxFileDialog::DoSetSize(int x, int y, int width, int height, int sizeFlags )
 271 {
 272     if (!m_wxwindow)
 273         return;
 274     else
 275         wxGenericFileDialog::DoSetSize( x, y, width, height, sizeFlags );
 276 }
 277
 278 wxString wxFileDialog::GetPath() const
 279 {
 280 #ifdef __WXGTK24__
 281     if (!gtk_check_version(2,4,0))
 282         return wxConvFileName->cMB2WX(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(m_widget)));
 283     else
 284 #endif
 285         return wxGenericFileDialog::GetPath();
 286 }
 287
 288 void wxFileDialog::GetFilenames(wxArrayString& files) const
 289 {
 290 #ifdef __WXGTK24__
 291     if (!gtk_check_version(2,4,0))
 292     {
 293         GetPaths(files);
 294         for (size_t n = 0; n < files.GetCount(); ++n )
 295         {
 296             wxFileName file(files[n]);
 297             files[n] = file.GetFullName();
 298         }
 299     }
 300     else
 301 #endif
 302         wxGenericFileDialog::GetFilenames( files );
 303 }
 304
 305 void wxFileDialog::GetPaths(wxArrayString& paths) const
 306 {
 307 #ifdef __WXGTK24__
 308     if (!gtk_check_version(2,4,0))
 309     {
 310         paths.Empty();
 311         if (gtk_file_chooser_get_select_multiple(GTK_FILE_CHOOSER(m_widget)))
 312         {
 313             GSList *gpathsi = gtk_file_chooser_get_filenames(GTK_FILE_CHOOSER(m_widget));
 314             GSList *gpaths = gpathsi;
 315             while (gpathsi)
 316             {
 317                 wxString file(wxConvFileName->cMB2WX((gchar*) gpathsi->data));
 318                 paths.Add(file);
 319                 g_free(gpathsi->data);
 320                 gpathsi = gpathsi->next;
 321             }
 322
 323             g_slist_free(gpaths);
 324         }
 325         else
 326             paths.Add(GetPath());
 327     }
 328     else
 329 #endif
 330         wxGenericFileDialog::GetPaths( paths );
 331 }
 332
 333 void wxFileDialog::SetMessage(const wxString& message)
 334 {
 335 #ifdef __WXGTK24__
 336     if (!gtk_check_version(2,4,0))
 337     {
 338         m_message = message;
 339         SetTitle(message);
 340     }
 341     else
 342 #endif
 343         wxGenericFileDialog::SetMessage( message );
 344 }
 345
 346 void wxFileDialog::SetPath(const wxString& path)
 347 {
 348 #ifdef __WXGTK24__
 349     if (!gtk_check_version(2,4,0))
 350     {
 351         if (path.empty()) return;
 352
 353         gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(m_widget), wxConvFileName->cWX2MB(path));
 354     }
 355     else
 356 #endif
 357         wxGenericFileDialog::SetPath( path );
 358 }
 359
 360 void wxFileDialog::SetDirectory(const wxString& dir)
 361 {
 362 #ifdef __WXGTK24__
 363     if (!gtk_check_version(2,4,0))
 364     {
 365         if (wxDirExists(dir))
 366         {
 367             gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(m_widget), wxConvFileName->cWX2MB(dir));
 368         }
 369     }
 370     else
 371 #endif
 372         wxGenericFileDialog::SetDirectory( dir );
 373 }
 374
 375 wxString wxFileDialog::GetDirectory() const
 376 {
 377 #ifdef __WXGTK24__
 378     if (!gtk_check_version(2,4,0))
 379         return wxConvFileName->cMB2WX(
 380             gtk_file_chooser_get_current_folder( GTK_FILE_CHOOSER(m_widget) ) );
 381     else
 382 #endif
 383         return wxGenericFileDialog::GetDirectory();
 384 }
 385
 386 void wxFileDialog::SetFilename(const wxString& name)
 387 {
 388 #ifdef __WXGTK24__
 389     if (!gtk_check_version(2,4,0))
 390     {
 391         if (GetStyle() & wxSAVE)
 392             gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget), wxConvFileName->cWX2MB(name));
 393         else
 394             SetPath(wxFileName(GetDirectory(), name).GetFullPath());
 395     }
 396     else
 397 #endif
 398         wxGenericFileDialog::SetFilename( name );
 399 }
 400
 401 wxString wxFileDialog::GetFilename() const
 402 {
 403 #ifdef __WXGTK24__
 404     if (!gtk_check_version(2,4,0))
 405         return wxFileName(
 406             wxConvFileName->cMB2WX(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(m_widget))) ).GetFullName();
 407     else
 408 #endif
 409         return wxGenericFileDialog::GetFilename();
 410 }
 411
 412 void wxFileDialog::SetWildcard(const wxString& wildCard)
 413 {
 414 #ifdef __WXGTK24__
 415     if (!gtk_check_version(2,4,0))
 416     {
 417         // parse filters
 418         wxArrayString wildDescriptions, wildFilters;
 419         if (!wxParseCommonDialogsFilter(wildCard, wildDescriptions, wildFilters))
 420         {
 421             wxFAIL_MSG( wxT("wxFileDialog::SetWildCard - bad wildcard string") );
 422         }
 423         else
 424         {
 425             // Parsing went fine. Set m_wildCard to be returned by wxFileDialogBase::GetWildcard
 426             m_wildCard = wildCard;
 427
 428             GtkFileChooser* chooser = GTK_FILE_CHOOSER(m_widget);
 429
 430             // empty current filter list:
 431             GSList* ifilters = gtk_file_chooser_list_filters(chooser);
 432             GSList* filters = ifilters;
 433
 434             while (ifilters)
 435             {
 436                 gtk_file_chooser_remove_filter(chooser,GTK_FILE_FILTER(ifilters->data));
 437                 ifilters = ifilters->next;
 438             }
 439             g_slist_free(filters);
 440
 441             // add parsed to GtkChooser
 442             for (size_t n = 0; n < wildFilters.GetCount(); ++n)
 443             {
 444                 GtkFileFilter* filter = gtk_file_filter_new();
 445                 gtk_file_filter_set_name(filter, wxGTK_CONV(wildDescriptions[n]));
 446
 447                 wxStringTokenizer exttok(wildFilters[n], wxT(";"));
 448                 while (exttok.HasMoreTokens())
 449                 {
 450                     wxString token = exttok.GetNextToken();
 451                     gtk_file_filter_add_pattern(filter, wxGTK_CONV(token));
 452                 }
 453
 454                 gtk_file_chooser_add_filter(chooser, filter);
 455             }
 456
 457             // Reset the filter index
 458             SetFilterIndex(0);
 459         }
 460     }
 461     else
 462 #endif
 463         wxGenericFileDialog::SetWildcard( wildCard );
 464 }
 465
 466 void wxFileDialog::SetFilterIndex(int filterIndex)
 467 {
 468 #ifdef __WXGTK24__
 469     if (!gtk_check_version(2,4,0))
 470     {
 471         gpointer filter;
 472         GtkFileChooser *chooser = GTK_FILE_CHOOSER(m_widget);
 473         GSList *filters = gtk_file_chooser_list_filters(chooser);
 474
 475         filter = g_slist_nth_data(filters, filterIndex);
 476
 477         if (filter != NULL)
 478         {
 479             gtk_file_chooser_set_filter(chooser, GTK_FILE_FILTER(filter));
 480         }
 481         else
 482         {
 483             wxFAIL_MSG( wxT("wxFileDialog::SetFilterIndex - bad filter index") );
 484         }
 485
 486         g_slist_free(filters);
 487     }
 488     else
 489 #endif
 490         wxGenericFileDialog::SetFilterIndex( filterIndex );
 491 }
 492
 493 int wxFileDialog::GetFilterIndex() const
 494 {
 495 #ifdef __WXGTK24__
 496     if (!gtk_check_version(2,4,0))
 497     {
 498         GtkFileChooser *chooser = GTK_FILE_CHOOSER(m_widget);
 499         GtkFileFilter *filter = gtk_file_chooser_get_filter(chooser);
 500         GSList *filters = gtk_file_chooser_list_filters(chooser);
 501         gint index = g_slist_index(filters, filter);
 502         g_slist_free(filters);
 503
 504         if (index == -1)
 505         {
 506             wxFAIL_MSG( wxT("wxFileDialog::GetFilterIndex - bad filter index returned by gtk+") );
 507             return 0;
 508         }
 509         else
 510             return index;
 511     }
 512     else
 513 #endif
 514                 return wxGenericFileDialog::GetFilterIndex();
 515 }
 516
 517 #endif // wxUSE_FILEDLG