shell/ev-application.c

   1 /* this file is part of evince, a gnome document viewer
   2  *
   3  *  Copyright (C) 2004 Martin Kretzschmar
   4  *
   5  *  Author:
   6  *    Martin Kretzschmar <martink@gnome.org>
   7  *
   8  * Evince is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * Evince is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  21  */
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include "config.h"
  25 #endif
  26
  27 #include "ev-application.h"
  28 #include "ev-utils.h"
  29 #include "ev-file-helpers.h"
  30 #include "ev-document-factory.h"
  31
  32 #include <glib.h>
  33 #include <glib/gi18n.h>
  34 #include <glib-object.h>
  35 #include <gtk/gtkfilechooserdialog.h>
  36 #include <gtk/gtkstock.h>
  37 #include <gtk/gtkwidget.h>
  38 #include <gtk/gtkmain.h>
  39 #include <libgnomeui/gnome-client.h>
  40 #include <string.h>
  41
  42 #ifdef ENABLE_DBUS
  43 #include "ev-application-service.h"
  44 #include <dbus/dbus-glib-bindings.h>
  45 #endif
  46
  47 G_DEFINE_TYPE (EvApplication, ev_application, G_TYPE_OBJECT);
  48
  49 #define APPLICATION_SERVICE_NAME "org.gnome.evince.ApplicationService"
  50
  51 #ifdef ENABLE_DBUS
  52 gboolean
  53 ev_application_register_service (EvApplication *application)
  54 {
  55         static DBusGConnection *connection = NULL;
  56         DBusGProxy *driver_proxy;
  57         GError *err = NULL;
  58         guint request_name_result;
  59
  60         if (connection) {
  61                 g_warning ("Service already registered.");
  62                 return FALSE;
  63         }
  64
  65         connection = dbus_g_bus_get (DBUS_BUS_STARTER, &err);
  66         if (connection == NULL) {
  67                 g_warning ("Service registration failed.");
  68                 g_error_free (err);
  69
  70                 return FALSE;
  71         }
  72
  73         driver_proxy = dbus_g_proxy_new_for_name (connection,
  74                                                   DBUS_SERVICE_DBUS,
  75                                                   DBUS_PATH_DBUS,
  76                                                   DBUS_INTERFACE_DBUS);
  77
  78         if (!org_freedesktop_DBus_request_name (driver_proxy,
  79                                                 APPLICATION_SERVICE_NAME,
  80                                                 DBUS_NAME_FLAG_DO_NOT_QUEUE,
  81                                                 &request_name_result, &err)) {
  82                 g_warning ("Service registration failed.");
  83                 g_clear_error (&err);
  84         }
  85
  86         g_object_unref (driver_proxy);
  87
  88         if (request_name_result == DBUS_REQUEST_NAME_REPLY_EXISTS) {
  89                 return FALSE;
  90         }
  91
  92         dbus_g_object_type_install_info (EV_TYPE_APPLICATION,
  93                                          &dbus_glib_ev_application_object_info);
  94         dbus_g_connection_register_g_object (connection,
  95                                              "/org/gnome/evince/Evince",
  96                                              G_OBJECT (application));
  97
  98         application->scr_saver = totem_scrsaver_new (connection);
  99
 100         return TRUE;
 101 }
 102 #endif /* ENABLE_DBUS */
 103
 104 EvApplication *
 105 ev_application_get_instance (void)
 106 {
 107         static EvApplication *instance;
 108
 109         if (!instance) {
 110                 instance = EV_APPLICATION (g_object_new (EV_TYPE_APPLICATION, NULL));
 111         }
 112
 113         return instance;
 114 }
 115
 116 static void
 117 removed_from_session (GnomeClient *client, EvApplication *application)
 118 {
 119         ev_application_shutdown (application);
 120 }
 121
 122 static gint
 123 save_session (GnomeClient *client, gint phase, GnomeSaveStyle save_style, gint shutdown,
 124               GnomeInteractStyle interact_style, gint fast, EvApplication *application)
 125 {
 126         GList *windows, *l;
 127         char **restart_argv;
 128         int argc = 0, k;
 129
 130         windows = ev_application_get_windows (application);
 131         restart_argv = g_new (char *, g_list_length (windows) + 1);
 132         restart_argv[argc++] = g_strdup ("evince");
 133
 134         for (l = windows; l != NULL; l = l->next) {
 135                 EvWindow *window = EV_WINDOW (l->data);
 136                 restart_argv[argc++] = g_strdup (ev_window_get_uri (window));
 137         }
 138
 139         gnome_client_set_restart_command (client, argc, restart_argv);
 140
 141         for (k = 0; k < argc; k++) {
 142                 g_free (restart_argv[k]);
 143         }
 144
 145         g_list_free (windows);
 146         g_free (restart_argv);
 147
 148         return TRUE;
 149 }
 150
 151 static void
 152 init_session (EvApplication *application)
 153 {
 154         GnomeClient *client;
 155
 156         client = gnome_master_client ();
 157
 158         g_signal_connect (client, "save_yourself",
 159                           G_CALLBACK (save_session), application);
 160         g_signal_connect (client, "die",
 161                           G_CALLBACK (removed_from_session), application);
 162 }
 163
 164 static GdkDisplay *
 165 ev_display_open_if_needed (const gchar *name)
 166 {
 167         GSList     *displays;
 168         GSList     *l;
 169         GdkDisplay *display = NULL;
 170
 171         displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
 172
 173         for (l = displays; l != NULL; l = l->next) {
 174                 const gchar *display_name = gdk_display_get_name ((GdkDisplay *) l->data);
 175
 176                 if (g_ascii_strcasecmp (display_name, name) == 0) {
 177                         display = l->data;
 178                         break;
 179                 }
 180         }
 181
 182         g_slist_free (displays);
 183
 184         return display != NULL ? display : gdk_display_open (name);
 185 }
 186
 187 static GdkScreen *
 188 get_screen_from_args (GHashTable *args)
 189 {
 190         GValue     *value = NULL;
 191         GdkDisplay *display = NULL;
 192         GdkScreen  *screen = NULL;
 193
 194         g_assert (args != NULL);
 195
 196         value = g_hash_table_lookup (args, "display");
 197         if (value) {
 198                 const gchar *display_name;
 199
 200                 display_name = g_value_get_string (value);
 201                 display = ev_display_open_if_needed (display_name);
 202         }
 203
 204         value = g_hash_table_lookup (args, "screen");
 205         if (value) {
 206                 gint screen_number;
 207
 208                 screen_number = g_value_get_int (value);
 209                 screen = gdk_display_get_screen (display, screen_number);
 210         }
 211
 212         return screen;
 213 }
 214
 215 static EvWindowRunMode
 216 get_window_run_mode_from_args (GHashTable *args)
 217 {
 218         EvWindowRunMode  mode = EV_WINDOW_MODE_NORMAL;
 219         GValue          *value = NULL;
 220
 221         g_assert (args != NULL);
 222
 223         value = g_hash_table_lookup (args, "mode");
 224         if (value) {
 225                 mode = g_value_get_uint (value);
 226         }
 227
 228         return mode;
 229 }
 230
 231 static EvLinkDest *
 232 get_destination_from_args (GHashTable *args)
 233 {
 234         EvLinkDest *dest = NULL;
 235         GValue     *value = NULL;
 236
 237         g_assert (args != NULL);
 238
 239         value = g_hash_table_lookup (args, "page-label");
 240         if (value) {
 241                 const gchar *page_label;
 242
 243                 page_label = g_value_get_string (value);
 244                 dest = ev_link_dest_new_page_label (page_label);
 245         }
 246
 247         return dest;
 248 }
 249
 250 static gboolean
 251 get_unlink_temp_file_from_args (GHashTable *args)
 252 {
 253         gboolean unlink_temp_file = FALSE;
 254         GValue  *value = NULL;
 255
 256         g_assert (args != NULL);
 257
 258         value = g_hash_table_lookup (args, "unlink-temp-file");
 259         if (value) {
 260                 unlink_temp_file = g_value_get_boolean (value);
 261         }
 262
 263         return unlink_temp_file;
 264 }
 265
 266 gboolean
 267 ev_application_open_window (EvApplication  *application,
 268                             GHashTable     *args,
 269                             guint32         timestamp,
 270                             GError        **error)
 271 {
 272         GtkWidget *new_window = ev_window_new ();
 273         GdkScreen *screen = NULL;
 274
 275         if (args) {
 276                 screen = get_screen_from_args (args);
 277         }
 278
 279         if (screen) {
 280                 gtk_window_set_screen (GTK_WINDOW (new_window), screen);
 281         }
 282
 283         gtk_widget_show (new_window);
 284
 285         gtk_window_present_with_time (GTK_WINDOW (new_window),
 286                                       timestamp);
 287         return TRUE;
 288 }
 289
 290 static EvWindow *
 291 ev_application_get_empty_window (EvApplication *application,
 292                                  GdkScreen     *screen)
 293 {
 294         EvWindow *empty_window = NULL;
 295         GList *windows = ev_application_get_windows (application);
 296         GList *l;
 297
 298         for (l = windows; l != NULL; l = l->next) {
 299                 EvWindow *window = EV_WINDOW (l->data);
 300
 301                 if (ev_window_is_empty (window) &&
 302                     gtk_window_get_screen (GTK_WINDOW (window)) == screen) {
 303                         empty_window = window;
 304                         break;
 305                 }
 306         }
 307
 308         g_list_free (windows);
 309
 310         return empty_window;
 311 }
 312
 313 static EvWindow *
 314 ev_application_get_uri_window (EvApplication *application, const char *uri)
 315 {
 316         EvWindow *uri_window = NULL;
 317         GList *windows = gtk_window_list_toplevels ();
 318         GList *l;
 319
 320         g_return_val_if_fail (uri != NULL, NULL);
 321
 322         for (l = windows; l != NULL; l = l->next) {
 323                 if (EV_IS_WINDOW (l->data)) {
 324                         EvWindow *window = EV_WINDOW (l->data);
 325                         const char *window_uri = ev_window_get_uri (window);
 326
 327                         if (window_uri && strcmp (window_uri, uri) == 0 && !ev_window_is_empty (window)) {
 328                                 uri_window = window;
 329                                 break;
 330                         }
 331                 }
 332         }
 333
 334         g_list_free (windows);
 335
 336         return uri_window;
 337 }
 338
 339 void
 340 ev_application_open_uri_at_dest (EvApplication  *application,
 341                                  const char     *uri,
 342                                  GdkScreen      *screen,
 343                                  EvLinkDest     *dest,
 344                                  EvWindowRunMode mode,
 345                                  gboolean        unlink_temp_file,
 346                                  guint           timestamp)
 347 {
 348         EvWindow     *new_window;
 349         GtkIconTheme *icon_theme;
 350
 351         g_return_if_fail (uri != NULL);
 352
 353         icon_theme = gtk_icon_theme_get_for_screen (screen);
 354         if (icon_theme) {
 355                 gchar **path = NULL;
 356                 gint    n_paths;
 357                 gint    i;
 358                 gchar  *ev_icons_path;
 359
 360                 /* GtkIconTheme will then look in Evince custom hicolor dir
 361                  * for icons as well as the standard search paths
 362                  */
 363                 ev_icons_path = g_build_filename (DATADIR, "icons", NULL);
 364                 gtk_icon_theme_get_search_path (icon_theme, &path, &n_paths);
 365                 for (i = n_paths - 1; i >= 0; i--) {
 366                         if (g_ascii_strcasecmp (ev_icons_path, path[i]) == 0)
 367                                 break;
 368                 }
 369
 370                 if (i < 0)
 371                         gtk_icon_theme_append_search_path (icon_theme,
 372                                                            ev_icons_path);
 373
 374                 g_free (ev_icons_path);
 375                 g_strfreev (path);
 376         }
 377
 378         new_window = ev_application_get_uri_window (application, uri);
 379
 380         if (new_window == NULL) {
 381                 new_window = ev_application_get_empty_window (application, screen);
 382         }
 383
 384         if (new_window == NULL) {
 385                 new_window = EV_WINDOW (ev_window_new ());
 386         }
 387
 388         if (screen)
 389                 gtk_window_set_screen (GTK_WINDOW (new_window), screen);
 390
 391         /* We need to load uri before showing the window, so
 392            we can restore window size without flickering */
 393         ev_window_open_uri (new_window, uri, dest, mode, unlink_temp_file);
 394
 395         ev_document_fc_mutex_lock ();
 396         gtk_widget_show (GTK_WIDGET (new_window));
 397         ev_document_fc_mutex_unlock ();
 398
 399         gtk_window_present_with_time (GTK_WINDOW (new_window),
 400                                       timestamp);
 401 }
 402
 403 gboolean
 404 ev_application_open_uri (EvApplication  *application,
 405                          const char     *uri,
 406                          GHashTable     *args,
 407                          guint           timestamp,
 408                          GError        **error)
 409 {
 410         EvLinkDest      *dest = NULL;
 411         EvWindowRunMode  mode = EV_WINDOW_MODE_NORMAL;
 412         gboolean         unlink_temp_file = FALSE;
 413         GdkScreen       *screen = NULL;
 414
 415         if (args) {
 416                 screen = get_screen_from_args (args);
 417                 dest = get_destination_from_args (args);
 418                 mode = get_window_run_mode_from_args (args);
 419                 unlink_temp_file = (mode == EV_WINDOW_MODE_PREVIEW &&
 420                                     get_unlink_temp_file_from_args (args));
 421         }
 422
 423         ev_application_open_uri_at_dest (application, uri, screen,
 424                                          dest, mode, unlink_temp_file,
 425                                          timestamp);
 426
 427         if (dest)
 428                 g_object_unref (dest);
 429
 430         return TRUE;
 431 }
 432
 433 void
 434 ev_application_open_uri_list (EvApplication *application,
 435                               GSList        *uri_list,
 436                               GdkScreen     *screen,
 437                               guint          timestamp)
 438 {
 439         GSList *l;
 440
 441         for (l = uri_list; l != NULL; l = l->next) {
 442                 ev_application_open_uri_at_dest (application, (char *)l->data,
 443                                                  screen, NULL, 0, FALSE,
 444                                                  timestamp);
 445         }
 446 }
 447
 448 void
 449 ev_application_shutdown (EvApplication *application)
 450 {
 451         if (application->toolbars_model) {
 452                 g_object_unref (application->toolbars_model);
 453                 g_object_unref (application->preview_toolbars_model);
 454                 g_free (application->toolbars_file);
 455                 application->toolbars_model = NULL;
 456                 application->preview_toolbars_model = NULL;
 457                 application->toolbars_file = NULL;
 458         }
 459
 460 #ifndef HAVE_GTK_RECENT
 461         if (application->recent_model) {
 462                 g_object_unref (application->recent_model);
 463                 application->recent_model = NULL;
 464         }
 465 #endif
 466
 467         g_free (application->last_chooser_uri);
 468         g_object_unref (application);
 469
 470         gtk_main_quit ();
 471 }
 472
 473 static void
 474 ev_application_class_init (EvApplicationClass *ev_application_class)
 475 {
 476 }
 477
 478 static void
 479 ev_application_init (EvApplication *ev_application)
 480 {
 481         init_session (ev_application);
 482
 483         ev_application->toolbars_model = egg_toolbars_model_new ();
 484
 485         ev_application->toolbars_file = g_build_filename
 486                         (ev_dot_dir (), "evince_toolbar.xml", NULL);
 487
 488         egg_toolbars_model_load_names (ev_application->toolbars_model,
 489                                        DATADIR "/evince-toolbar.xml");
 490
 491         if (!egg_toolbars_model_load_toolbars (ev_application->toolbars_model,
 492                                                ev_application->toolbars_file)) {
 493                 egg_toolbars_model_load_toolbars (ev_application->toolbars_model,
 494                                                   DATADIR"/evince-toolbar.xml");
 495         }
 496
 497         egg_toolbars_model_set_flags (ev_application->toolbars_model, 0,
 498                                       EGG_TB_MODEL_NOT_REMOVABLE);
 499
 500         ev_application->preview_toolbars_model = egg_toolbars_model_new ();
 501
 502         egg_toolbars_model_load_toolbars (ev_application->preview_toolbars_model,
 503                                           DATADIR"/evince-preview-toolbar.xml");
 504
 505         egg_toolbars_model_set_flags (ev_application->preview_toolbars_model, 0,
 506                                       EGG_TB_MODEL_NOT_REMOVABLE);
 507
 508 #ifndef HAVE_GTK_RECENT
 509         ev_application->recent_model = egg_recent_model_new (EGG_RECENT_MODEL_SORT_MRU);
 510         /* FIXME we should add a mime type filter but current eggrecent
 511            has only a varargs style api which does not work well when
 512            the list of mime types is dynamic */
 513         egg_recent_model_set_limit (ev_application->recent_model, 5);
 514         egg_recent_model_set_filter_groups (ev_application->recent_model,
 515                                             "Evince", NULL);
 516 #endif /* HAVE_GTK_RECENT */
 517 }
 518
 519 GList *
 520 ev_application_get_windows (EvApplication *application)
 521 {
 522         GList *l, *toplevels;
 523         GList *windows = NULL;
 524
 525         toplevels = gtk_window_list_toplevels ();
 526
 527         for (l = toplevels; l != NULL; l = l->next) {
 528                 if (EV_IS_WINDOW (l->data)) {
 529                         windows = g_list_append (windows, l->data);
 530                 }
 531         }
 532
 533         g_list_free (toplevels);
 534
 535         return windows;
 536 }
 537
 538 EggToolbarsModel *ev_application_get_toolbars_model (EvApplication *application,
 539                                                      gboolean preview)
 540 {
 541         return preview ?
 542             application->preview_toolbars_model : application->toolbars_model;
 543 }
 544
 545 #ifndef HAVE_GTK_RECENT
 546 EggRecentModel *ev_application_get_recent_model (EvApplication *application)
 547 {
 548         return application->recent_model;
 549 }
 550 #endif
 551
 552 void ev_application_save_toolbars_model (EvApplication *application)
 553 {
 554         egg_toolbars_model_save_toolbars (application->toolbars_model,
 555                                           application->toolbars_file, "1.0");
 556 }
 557
 558 void ev_application_set_chooser_uri (EvApplication *application, const gchar *uri)
 559 {
 560         g_free (application->last_chooser_uri);
 561         application->last_chooser_uri = g_strdup (uri);
 562 }
 563
 564 const gchar* ev_application_get_chooser_uri (EvApplication *application)
 565 {
 566         return application->last_chooser_uri;
 567 }
 568
 569 void ev_application_screensaver_enable  (EvApplication   *application)
 570 {
 571         if (application->scr_saver)
 572                 totem_scrsaver_enable (application->scr_saver);
 573 }
 574
 575 void ev_application_screensaver_disable (EvApplication   *application)
 576 {
 577         if (application->scr_saver)
 578                 totem_scrsaver_disable (application->scr_saver);
 579 }