pintos-os.org Git - pspp/blob - src/ui/gui/psppire-window.c

   1 /* PSPPIRE - a graphical user interface for PSPP.
   2    Copyright (C) 2009, 2010, 2011, 2013, 2014, 2020 Free Software Foundation
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
  16
  17 #include <config.h>
  18 #include <gl/relocatable.h>
  19
  20 #include "psppire-window.h"
  21 #include "psppire-window-base.h"
  22
  23 #include <gtk/gtk.h>
  24
  25 #include <stdlib.h>
  26
  27 #include <gettext.h>
  28 #define _(msgid) gettext (msgid)
  29 #define N_(msgid) msgid
  30
  31 #include "data/any-reader.h"
  32 #include "data/file-handle-def.h"
  33 #include "data/dataset.h"
  34 #include "libpspp/version.h"
  35 #include "output/output-item.h"
  36 #include "output/pivot-table.h"
  37 #include "output/spv/spv.h"
  38
  39 #include "helper.h"
  40 #include "psppire-data-window.h"
  41 #include "psppire-encoding-selector.h"
  42 #include "psppire-syntax-window.h"
  43 #include "psppire-window-register.h"
  44
  45 static void psppire_window_class_init    (PsppireWindowClass *class);
  46 static void psppire_window_init          (PsppireWindow      *window);
  47
  48 static GObjectClass *parent_class;
  49
  50 G_DEFINE_ABSTRACT_TYPE (PsppireWindow, psppire_window, PSPPIRE_TYPE_WINDOW_BASE)
  51
  52 /* Properties */
  53 enum
  54 {
  55   PROP_0,
  56   PROP_FILENAME,
  57   PROP_DESCRIPTION,
  58   PROP_ID
  59 };
  60
  61
  62 static void
  63 psppire_window_set_title (PsppireWindow *window)
  64 {
  65   GString *title = g_string_sized_new (80);
  66
  67   if (window->edited != NULL)
  68     g_string_append_c (title, '*');
  69
  70   if (window->basename || window->id)
  71     {
  72       if (window->basename)
  73         g_string_append_printf (title, "%s ", window->basename);
  74
  75       if (window->id)
  76         g_string_append_printf (title, "[%s] ", window->id);
  77
  78       g_string_append_unichar (title, 0x2014); /* em dash */
  79       g_string_append_c (title, ' '); /* em dash */
  80     }
  81
  82   g_string_append_printf (title, "PSPPIRE %s", window->description);
  83
  84   int minor = 1;
  85   sscanf (bare_version, "%*d.%d.%*d", &minor);
  86   if (minor % 2)
  87     g_string_append_printf (title, " - Test version! Please report bugs to %s", PACKAGE_BUGREPORT);
  88
  89   gtk_window_set_title (GTK_WINDOW (window), title->str);
  90
  91   g_string_free (title, TRUE);
  92 }
  93
  94 static void
  95 psppire_window_update_list_name (PsppireWindow *window)
  96 {
  97   PsppireWindowRegister *reg = psppire_window_register_new ();
  98   GString *candidate = g_string_sized_new (80);
  99   int n;
 100
 101   n = 1;
 102   do
 103     {
 104       /* Compose a name. */
 105       g_string_truncate (candidate, 0);
 106       if (window->filename)
 107         {
 108           gchar *display_filename = g_filename_display_name (window->filename);
 109           g_string_append (candidate, display_filename);
 110           g_free (display_filename);
 111
 112           if (window->id)
 113             g_string_append_printf (candidate, " [%s]", window->id);
 114         }
 115       else if (window->id)
 116         g_string_append_printf (candidate, "[%s]", window->id);
 117       else
 118         g_string_append (candidate, window->description);
 119
 120       if (n++ > 1)
 121         g_string_append_printf (candidate, " #%d", n);
 122
 123       if (window->list_name && !strcmp (candidate->str, window->list_name))
 124         {
 125           /* Keep the existing name. */
 126           g_string_free (candidate, TRUE);
 127           return;
 128         }
 129     }
 130   while (psppire_window_register_lookup (reg, candidate->str));
 131
 132   if (window->list_name)
 133     psppire_window_register_remove (reg, window->list_name);
 134
 135   g_free (window->list_name);
 136   window->list_name = g_string_free (candidate, FALSE);
 137
 138   psppire_window_register_insert (reg, window, window->list_name);
 139 }
 140
 141 static void
 142 psppire_window_name_changed (PsppireWindow *window)
 143 {
 144   psppire_window_set_title (window);
 145   psppire_window_update_list_name (window);
 146 }
 147
 148 static void
 149 psppire_window_set_property (GObject         *object,
 150                              guint            prop_id,
 151                              const GValue    *value,
 152                              GParamSpec      *pspec)
 153 {
 154   PsppireWindow *window = PSPPIRE_WINDOW (object);
 155
 156   switch (prop_id)
 157     {
 158     case PROP_DESCRIPTION:
 159       g_free (window->description);
 160       window->description = g_value_dup_string (value);
 161       psppire_window_set_title (window);
 162       break;
 163     case PROP_FILENAME:
 164       g_free (window->filename);
 165       window->filename = g_value_dup_string (value);
 166       g_free (window->basename);
 167       window->basename = (window->filename
 168                           ? g_filename_display_basename (window->filename)
 169                           : NULL);
 170       psppire_window_name_changed (window);
 171       break;
 172     case PROP_ID:
 173       g_free (window->id);
 174       window->id = g_value_dup_string (value);
 175       psppire_window_name_changed (window);
 176       break;
 177     default:
 178       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 179       break;
 180     };
 181 }
 182
 183
 184 static void
 185 psppire_window_get_property (GObject         *object,
 186                              guint            prop_id,
 187                              GValue          *value,
 188                              GParamSpec      *pspec)
 189 {
 190   PsppireWindow *window = PSPPIRE_WINDOW (object);
 191
 192   switch (prop_id)
 193     {
 194     case PROP_FILENAME:
 195       g_value_set_string (value, window->filename);
 196       break;
 197     case PROP_DESCRIPTION:
 198       g_value_set_string (value, window->description);
 199       break;
 200     case PROP_ID:
 201       g_value_set_string (value, window->id);
 202       break;
 203     default:
 204       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 205       break;
 206     };
 207 }
 208
 209
 210 static void
 211 psppire_window_finalize (GObject *object)
 212 {
 213   PsppireWindow *window = PSPPIRE_WINDOW (object);
 214
 215   PsppireWindowRegister *reg = psppire_window_register_new ();
 216
 217   if (window->edited)
 218     g_date_time_unref (window->edited);
 219
 220   g_signal_handler_disconnect (reg, window->remove_handler);
 221   g_signal_handler_disconnect (reg, window->insert_handler);
 222   psppire_window_register_remove (reg, window->list_name);
 223   g_free (window->filename);
 224   g_free (window->basename);
 225   g_free (window->id);
 226   g_free (window->description);
 227   g_free (window->list_name);
 228
 229   g_hash_table_destroy (window->menuitem_table);
 230
 231   if (G_OBJECT_CLASS (parent_class)->finalize)
 232     G_OBJECT_CLASS (parent_class)->finalize (object);
 233 }
 234
 235 static void
 236 psppire_window_class_init (PsppireWindowClass *class)
 237 {
 238   GObjectClass *object_class = G_OBJECT_CLASS (class);
 239
 240   object_class->finalize = psppire_window_finalize;
 241
 242   GParamSpec *description_spec =
 243     null_if_empty_param ("description",
 244                        "Description",
 245                        "A string describing the usage of the window",
 246                          NULL, /*Should be overridden by derived classes */
 247                        G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
 248
 249   GParamSpec *filename_spec =
 250     null_if_empty_param ("filename",
 251                        "File name",
 252                        "The name of the file associated with this window, if any",
 253                          NULL,
 254                          G_PARAM_CONSTRUCT | G_PARAM_READWRITE);
 255
 256   GParamSpec *id_spec =
 257     null_if_empty_param ("id",
 258                          "Identifier",
 259                          "The PSPP language identifier for the data associated "
 260                          "with this window (e.g. dataset name)",
 261                          NULL,
 262                          G_PARAM_CONSTRUCT | G_PARAM_READWRITE);
 263
 264   object_class->set_property = psppire_window_set_property;
 265   object_class->get_property = psppire_window_get_property;
 266
 267   g_object_class_install_property (object_class,
 268                                    PROP_DESCRIPTION,
 269                                    description_spec);
 270
 271   g_object_class_install_property (object_class,
 272                                    PROP_FILENAME,
 273                                    filename_spec);
 274
 275   g_object_class_install_property (object_class,
 276                                    PROP_ID,
 277                                    id_spec);
 278
 279   parent_class = g_type_class_peek_parent (class);
 280 }
 281
 282
 283 static void
 284 insert_menuitem_into_menu (PsppireWindow *window, gpointer key)
 285 {
 286   gchar *filename;
 287   GtkWidget *item;
 288   filename = g_filename_display_name (key);
 289   item = gtk_check_menu_item_new_with_label (filename);
 290   g_object_ref_sink (item);
 291   g_free (filename);
 292
 293   g_hash_table_insert (window->menuitem_table, key, item);
 294 }
 295
 296 static void
 297 insert_item (gpointer key, gpointer value, gpointer data)
 298 {
 299   PsppireWindow *window = PSPPIRE_WINDOW (data);
 300
 301   if (NULL != g_hash_table_lookup (window->menuitem_table, key))
 302     return;
 303
 304   insert_menuitem_into_menu (window, key);
 305 }
 306
 307 /* Insert a new item into the window menu */
 308 static void
 309 insert_menuitem (GObject *reg, const gchar *key, gpointer data)
 310 {
 311   PsppireWindow *window = PSPPIRE_WINDOW (data);
 312
 313   insert_menuitem_into_menu (window, (gpointer) key);
 314 }
 315
 316
 317 static void
 318 remove_menuitem (PsppireWindowRegister *reg, const gchar *key, gpointer data)
 319 {
 320   PsppireWindow *window = PSPPIRE_WINDOW (data);
 321   g_hash_table_remove (window->menuitem_table, key);
 322 }
 323
 324 static void
 325 insert_existing_items (PsppireWindow *window)
 326 {
 327   psppire_window_register_foreach (psppire_window_register_new (), insert_item, window);
 328 }
 329
 330
 331 static gboolean
 332 on_delete (PsppireWindow *w, GdkEvent *event, gpointer user_data)
 333 {
 334   PsppireWindowRegister *reg = psppire_window_register_new ();
 335
 336   if (w->edited != NULL)
 337     {
 338       gint response = psppire_window_query_save (w);
 339
 340       switch (response)
 341         {
 342         default:
 343         case GTK_RESPONSE_CANCEL:
 344           return TRUE;
 345           break;
 346         case GTK_RESPONSE_APPLY:
 347           psppire_window_save (w);
 348           if (w->edited != NULL)
 349             {
 350               /* Save failed, or user exited Save As dialog with Cancel. */
 351               return TRUE;
 352             }
 353           break;
 354         case GTK_RESPONSE_REJECT:
 355           break;
 356         }
 357     }
 358
 359   if (1 == psppire_window_register_n_items (reg))
 360     gtk_main_quit ();
 361
 362   return FALSE;
 363 }
 364
 365
 366 static void
 367 psppire_window_init (PsppireWindow *window)
 368 {
 369   window->filename = NULL;
 370   window->basename = NULL;
 371   window->id = NULL;
 372   window->description = NULL;
 373   window->list_name = NULL;
 374   window->edited = NULL;
 375
 376   window->menuitem_table  = g_hash_table_new_full (g_str_hash, g_str_equal,
 377                                                    NULL, g_object_unref);
 378
 379
 380   g_signal_connect (window,  "realize", G_CALLBACK (insert_existing_items), NULL);
 381
 382   PsppireWindowRegister *reg = psppire_window_register_new ();
 383   window->insert_handler = g_signal_connect (reg,
 384                                              "inserted",
 385                                              G_CALLBACK (insert_menuitem),
 386                                              window);
 387
 388   window->remove_handler = g_signal_connect (reg,
 389                                              "removed",
 390                                              G_CALLBACK (remove_menuitem),
 391                                              window);
 392
 393   window->added_separator = FALSE;
 394
 395   g_signal_connect_swapped (window, "delete-event", G_CALLBACK (on_delete), window);
 396
 397   g_object_set (window, "icon-name", "org.gnu.pspp", NULL);
 398 }
 399
 400 /*
 401    Ask the user if the buffer should be saved.
 402    Return the response.
 403 */
 404 gint
 405 psppire_window_query_save (PsppireWindow *se)
 406 {
 407   gint response;
 408   GtkWidget *dialog;
 409   GtkWidget *cancel_button;
 410
 411   gchar *description;
 412
 413   GDateTime *now = g_date_time_new_now_utc ();
 414   GTimeSpan timespan = g_date_time_difference (now, se->edited);
 415   g_date_time_unref (now);
 416
 417   if (se->filename)
 418     description = g_filename_display_basename (se->filename);
 419   else if (se->id)
 420     description = g_strdup (se->id);
 421   else
 422     description = g_strdup (se->description);
 423   dialog =
 424     gtk_message_dialog_new (GTK_WINDOW (se),
 425                             GTK_DIALOG_MODAL,
 426                             GTK_MESSAGE_WARNING,
 427                             GTK_BUTTONS_NONE,
 428                             _("Save the changes to `%s' before closing?"),
 429                             description);
 430   g_free (description);
 431
 432   g_object_set (dialog, "icon-name", "org.gnu.pspp", NULL);
 433
 434   gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
 435                                             _("If you don't save, changes from the last %ld seconds will be permanently lost."),
 436                                             (long int) (timespan / G_TIME_SPAN_SECOND));
 437
 438   gtk_dialog_add_button  (GTK_DIALOG (dialog),
 439                           _("Close _without saving"),
 440                           GTK_RESPONSE_REJECT);
 441
 442   cancel_button = gtk_dialog_add_button  (GTK_DIALOG (dialog),
 443                                           _("Cancel"),
 444                                           GTK_RESPONSE_CANCEL);
 445
 446   gtk_dialog_add_button  (GTK_DIALOG (dialog),
 447                           _("Save"),
 448                           GTK_RESPONSE_APPLY);
 449
 450   gtk_widget_grab_focus (cancel_button);
 451
 452   response = gtk_dialog_run (GTK_DIALOG (dialog));
 453
 454   gtk_widget_destroy (dialog);
 455
 456   return response;
 457 }
 458
 459
 460 /* The return value is encoded in the glib filename encoding. */
 461 const gchar *
 462 psppire_window_get_filename (PsppireWindow *w)
 463 {
 464   return w->filename;
 465 }
 466
 467
 468 /* FILENAME must be encoded in the glib filename encoding. */
 469 void
 470 psppire_window_set_filename (PsppireWindow *w, const gchar *filename)
 471 {
 472   g_object_set (w, "filename", filename, NULL);
 473 }
 474
 475 void
 476 psppire_window_set_unsaved (PsppireWindow *w)
 477 {
 478   if (w->edited == NULL)
 479     w->edited = g_date_time_new_now_utc ();
 480
 481   psppire_window_set_title (w);
 482 }
 483
 484 gboolean
 485 psppire_window_get_unsaved (PsppireWindow *w)
 486 {
 487   return w->edited != NULL;
 488 }
 489
 490
 491 \f
 492
 493
 494 static void
 495 minimise_window (gpointer key, gpointer value, gpointer data)
 496 {
 497   gtk_window_iconify (GTK_WINDOW (value));
 498 }
 499
 500
 501 void
 502 psppire_window_minimise_all (void)
 503 {
 504   PsppireWindowRegister *reg = psppire_window_register_new ();
 505
 506   g_hash_table_foreach (reg->name_table, minimise_window, NULL);
 507 }
 508
 509
 510 \f
 511
 512 GType
 513 psppire_window_model_get_type (void)
 514 {
 515   static GType window_model_type = 0;
 516
 517   if (! window_model_type)
 518     {
 519       static const GTypeInfo window_model_info =
 520       {
 521         sizeof (PsppireWindowIface), /* class_size */
 522         NULL,           /* base_init */
 523         NULL,           /* base_finalize */
 524         NULL,
 525         NULL,           /* class_finalize */
 526         NULL,           /* class_data */
 527         0,
 528         0,              /* n_preallocs */
 529         NULL,
 530         NULL            /* value_table */
 531       };
 532
 533       window_model_type =
 534         g_type_register_static (G_TYPE_INTERFACE, "PsppireWindowModel",
 535                                 &window_model_info, 0);
 536
 537       g_type_interface_add_prerequisite (window_model_type, G_TYPE_OBJECT);
 538     }
 539
 540   return window_model_type;
 541 }
 542
 543
 544 void
 545 psppire_window_save (PsppireWindow *w)
 546 {
 547   PsppireWindowIface *i = PSPPIRE_WINDOW_MODEL_GET_IFACE (w);
 548
 549   g_assert (i);
 550   g_return_if_fail (i->save);
 551
 552   if (w->filename == NULL)
 553     psppire_window_save_as (w);
 554   else
 555     {
 556       i->save (w);
 557       if (w->edited)
 558         g_date_time_unref (w->edited);
 559       w->edited = NULL;
 560
 561       psppire_window_set_title (w);
 562     }
 563 }
 564
 565 void
 566 psppire_window_save_as (PsppireWindow *w)
 567 {
 568   PsppireWindowIface *i = PSPPIRE_WINDOW_MODEL_GET_IFACE (w);
 569   gchar *old_filename;
 570
 571   g_assert (i);
 572   g_return_if_fail (i->pick_filename);
 573
 574   old_filename = w->filename;
 575   w->filename = NULL;
 576
 577   i->pick_filename (w);
 578   if (w->filename == NULL)
 579     w->filename = old_filename;
 580   else
 581     {
 582       g_free (old_filename);
 583       psppire_window_save (w);
 584     }
 585 }
 586
 587 static void delete_recent (const char *file_name);
 588
 589 gboolean
 590 psppire_window_load (PsppireWindow *w, const gchar *file,
 591                      const gchar *encoding, gpointer hint)
 592 {
 593   gboolean ok;
 594   PsppireWindowIface *i = PSPPIRE_WINDOW_MODEL_GET_IFACE (w);
 595
 596   g_assert (PSPPIRE_IS_WINDOW_MODEL (w));
 597
 598   g_assert (i);
 599
 600   g_return_val_if_fail (i->load, FALSE);
 601
 602   ok = i->load (w, file, encoding, hint);
 603
 604   if (ok)
 605     {
 606       psppire_window_set_filename (w, file);
 607       if (w->edited)
 608         g_date_time_unref (w->edited);
 609       w->edited = NULL;
 610     }
 611   else
 612     delete_recent (file);
 613
 614   return ok;
 615 }
 616
 617
 618 GtkWidget *
 619 psppire_window_file_chooser_dialog (PsppireWindow *toplevel)
 620 {
 621   GtkFileFilter *filter = gtk_file_filter_new ();
 622   GtkWidget *dialog =
 623     gtk_file_chooser_dialog_new (_("Open"),
 624                                  GTK_WINDOW (toplevel),
 625                                  GTK_FILE_CHOOSER_ACTION_OPEN,
 626                                  _("Cancel"), GTK_RESPONSE_CANCEL,
 627                                  _("Open"), GTK_RESPONSE_ACCEPT,
 628                                  NULL);
 629
 630   g_object_set (dialog, "local-only", FALSE, NULL);
 631
 632   gtk_file_filter_set_name (filter, _("Data and Syntax Files"));
 633   gtk_file_filter_add_mime_type (filter, "application/x-spss-sav");
 634   gtk_file_filter_add_mime_type (filter, "application/x-spss-por");
 635   gtk_file_filter_add_mime_type (filter, "application/x-spss-spv");
 636   gtk_file_filter_add_pattern (filter, "*.zsav");
 637   gtk_file_filter_add_pattern (filter, "*.sps");
 638   gtk_file_filter_add_pattern (filter, "*.SPS");
 639   gtk_file_filter_add_pattern (filter, "*.spv");
 640   gtk_file_filter_add_pattern (filter, "*.SPV");
 641   gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
 642
 643   filter = gtk_file_filter_new ();
 644   gtk_file_filter_set_name (filter, _("System Files (*.sav, *.zsav)"));
 645   gtk_file_filter_add_mime_type (filter, "application/x-spss-sav");
 646   gtk_file_filter_add_pattern (filter, "*.zsav");
 647   gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
 648
 649   filter = gtk_file_filter_new ();
 650   gtk_file_filter_set_name (filter, _("Portable Files (*.por) "));
 651   gtk_file_filter_add_mime_type (filter, "application/x-spss-por");
 652   gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
 653
 654   filter = gtk_file_filter_new ();
 655   gtk_file_filter_set_name (filter, _("Syntax Files (*.sps) "));
 656   gtk_file_filter_add_pattern (filter, "*.sps");
 657   gtk_file_filter_add_pattern (filter, "*.SPS");
 658   gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
 659
 660   filter = gtk_file_filter_new ();
 661   gtk_file_filter_set_name (filter, _("Output Files (*.spv) "));
 662   gtk_file_filter_add_pattern (filter, "*.spv");
 663   gtk_file_filter_add_pattern (filter, "*.SPV");
 664   gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
 665
 666   filter = gtk_file_filter_new ();
 667   gtk_file_filter_set_name (filter, _("All Files"));
 668   gtk_file_filter_add_pattern (filter, "*");
 669   gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
 670
 671   if (toplevel->filename)
 672     {
 673       const gchar *filename = toplevel->filename;
 674       gchar *dir_name;
 675
 676       if (! g_path_is_absolute (filename))
 677         {
 678           gchar *path =
 679             g_build_filename (g_get_current_dir (), filename, NULL);
 680           dir_name = g_path_get_dirname (path);
 681           g_free (path);
 682         }
 683       else
 684         {
 685           dir_name = g_path_get_dirname (filename);
 686         }
 687       gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (dialog),
 688                                            dir_name);
 689       free (dir_name);
 690     }
 691
 692     gtk_file_chooser_set_extra_widget (
 693       GTK_FILE_CHOOSER (dialog),
 694       psppire_encoding_selector_new ("Auto", true));
 695
 696   return dialog;
 697 }
 698
 699 void
 700 read_spv_file (const char *filename)
 701 {
 702   struct output_item *root;
 703   char *error = spv_read (filename, &root, NULL);
 704   if (error)
 705     {
 706       /* XXX */
 707       fprintf (stderr, "%s\n", error);
 708       return;
 709     }
 710
 711   output_item_submit_children (root);
 712 }
 713
 714 /* Callback for the file_open action.
 715    Prompts for a filename and opens it */
 716 void
 717 psppire_window_open (PsppireWindow *de)
 718 {
 719   GtkWidget *dialog = psppire_window_file_chooser_dialog (de);
 720
 721   gtk_file_chooser_add_shortcut_folder (GTK_FILE_CHOOSER (dialog), relocate (examples_dir), NULL);
 722
 723   switch (gtk_dialog_run (GTK_DIALOG (dialog)))
 724     {
 725     case GTK_RESPONSE_ACCEPT:
 726       {
 727         gchar *name =
 728           gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
 729
 730         const gchar **cs = NULL;
 731         g_get_filename_charsets (&cs);
 732
 733         gchar *encoding = psppire_encoding_selector_get_encoding (
 734           gtk_file_chooser_get_extra_widget (GTK_FILE_CHOOSER (dialog)));
 735
 736         struct file_handle *fh = fh_create_file (NULL, name, cs[0], fh_default_properties ());
 737
 738         int retval = any_reader_detect (fh, NULL);
 739         if (retval == 1)
 740           open_data_window (de, name, encoding, NULL);
 741         else if (retval == 0)
 742           {
 743             char *error = spv_detect (name);
 744             if (!error)
 745               read_spv_file (name);
 746             else
 747               {
 748                 free (error);
 749                 open_syntax_window (name, encoding);
 750               }
 751           }
 752
 753         g_free (encoding);
 754         fh_unref (fh);
 755         g_free (name);
 756       }
 757       break;
 758     default:
 759       break;
 760     }
 761
 762   gtk_widget_destroy (dialog);
 763 }
 764
 765
 766 /* Puts FILE_NAME (encoded in the glib file name encoding) into the recent list
 767    with associated MIME_TYPE.  If it's already in the list, it moves it to the
 768    top. */
 769 void
 770 add_most_recent (const char *file_name,
 771                  const char *mime_type, const char *encoding)
 772 {
 773   gchar *uri = g_filename_to_uri  (file_name, NULL, NULL);
 774   if (uri)
 775     {
 776       GtkRecentData recent_data;
 777       gchar *full_mime_type;
 778
 779       if (encoding && encoding[0])
 780         full_mime_type = g_strdup_printf ("%s; charset=%s",
 781                                           mime_type, encoding);
 782       else
 783         full_mime_type = g_strdup (mime_type);
 784
 785       recent_data.display_name = NULL;
 786       recent_data.description = NULL;
 787       recent_data.mime_type = full_mime_type;
 788       recent_data.app_name = CONST_CAST (gchar *, g_get_application_name ());
 789       recent_data.app_exec = g_strjoin (" ", g_get_prgname (), "%u", NULL);
 790       recent_data.groups = NULL;
 791       recent_data.is_private = FALSE;
 792
 793       gtk_recent_manager_add_full (gtk_recent_manager_get_default (),
 794                                    uri, &recent_data);
 795
 796       g_free (recent_data.app_exec);
 797       g_free (full_mime_type);
 798     }
 799
 800   g_free (uri);
 801 }
 802
 803
 804
 805 /*
 806    If FILE_NAME exists in the recent list, then  delete it.
 807  */
 808 static void
 809 delete_recent (const char *file_name)
 810 {
 811   gchar *uri = g_filename_to_uri  (file_name, NULL, NULL);
 812
 813   if (uri)
 814     gtk_recent_manager_remove_item (gtk_recent_manager_get_default (), uri, NULL);
 815
 816   g_free (uri);
 817 }