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 DBUS_VERSION >= 60
  79         if (!org_freedesktop_DBus_request_name (driver_proxy,
  80                                                 APPLICATION_SERVICE_NAME,
  81                                                 DBUS_NAME_FLAG_DO_NOT_QUEUE,
  82                                                 &request_name_result, &err)) {
  83                 g_warning ("Service registration failed.");
  84                 g_clear_error (&err);
  85         }
  86 #else
  87         if (!org_freedesktop_DBus_request_name (driver_proxy,
  88                                                 APPLICATION_SERVICE_NAME,
  89                                                 0, &request_name_result, &err)) {
  90                 g_warning ("Service registration failed.");
  91                 g_clear_error (&err);
  92         }
  93 #endif
  94
  95         g_object_unref (driver_proxy);
  96
  97         if (request_name_result == DBUS_REQUEST_NAME_REPLY_EXISTS) {
  98                 return FALSE;
  99         }
 100
 101 #if DBUS_VERSION == 33
 102         dbus_g_object_class_install_info (G_OBJECT_GET_CLASS (application),
 103                                           &dbus_glib_ev_application_object_info);
 104 #else
 105         dbus_g_object_type_install_info (EV_TYPE_APPLICATION,
 106                                          &dbus_glib_ev_application_object_info);
 107 #endif
 108
 109         dbus_g_connection_register_g_object (connection,
 110                                              "/org/gnome/evince/Evince",
 111                                              G_OBJECT (application));
 112
 113         application->scr_saver = totem_scrsaver_new (connection);
 114
 115         return TRUE;
 116 }
 117 #endif /* ENABLE_DBUS */
 118
 119 EvApplication *
 120 ev_application_get_instance (void)
 121 {
 122         static EvApplication *instance;
 123
 124         if (!instance) {
 125                 instance = EV_APPLICATION (g_object_new (EV_TYPE_APPLICATION, NULL));
 126         }
 127
 128         return instance;
 129 }
 130
 131 static void
 132 removed_from_session (GnomeClient *client, EvApplication *application)
 133 {
 134         ev_application_shutdown (application);
 135 }
 136
 137 static gint
 138 save_session (GnomeClient *client, gint phase, GnomeSaveStyle save_style, gint shutdown,
 139               GnomeInteractStyle interact_style, gint fast, EvApplication *application)
 140 {
 141         GList *windows, *l;
 142         char **restart_argv;
 143         int argc = 0, k;
 144
 145         windows = ev_application_get_windows (application);
 146         restart_argv = g_new (char *, g_list_length (windows) + 1);
 147         restart_argv[argc++] = g_strdup ("evince");
 148
 149         for (l = windows; l != NULL; l = l->next) {
 150                 EvWindow *window = EV_WINDOW (l->data);
 151                 restart_argv[argc++] = g_strdup (ev_window_get_uri (window));
 152         }
 153
 154         gnome_client_set_restart_command (client, argc, restart_argv);
 155
 156         for (k = 0; k < argc; k++) {
 157                 g_free (restart_argv[k]);
 158         }
 159
 160         g_list_free (windows);
 161         g_free (restart_argv);
 162
 163         return TRUE;
 164 }
 165
 166 static void
 167 init_session (EvApplication *application)
 168 {
 169         GnomeClient *client;
 170
 171         client = gnome_master_client ();
 172
 173         g_signal_connect (client, "save_yourself",
 174                           G_CALLBACK (save_session), application);
 175         g_signal_connect (client, "die",
 176                           G_CALLBACK (removed_from_session), application);
 177 }
 178
 179 static GdkDisplay *
 180 ev_display_open_if_needed (const gchar *name)
 181 {
 182         GSList     *displays;
 183         GSList     *l;
 184         GdkDisplay *display = NULL;
 185
 186         displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
 187
 188         for (l = displays; l != NULL; l = l->next) {
 189                 const gchar *display_name = gdk_display_get_name ((GdkDisplay *) l->data);
 190
 191                 if (g_ascii_strcasecmp (display_name, name) == 0) {
 192                         display = l->data;
 193                         break;
 194                 }
 195         }
 196
 197         g_slist_free (displays);
 198
 199         return display != NULL ? display : gdk_display_open (name);
 200 }
 201
 202 static GdkScreen *
 203 get_screen_from_args (GHashTable *args)
 204 {
 205         GValue     *value = NULL;
 206         GdkDisplay *display = NULL;
 207         GdkScreen  *screen = NULL;
 208
 209         g_assert (args != NULL);
 210
 211         value = g_hash_table_lookup (args, "display");
 212         if (value) {
 213                 const gchar *display_name;
 214
 215                 display_name = g_value_get_string (value);
 216                 display = ev_display_open_if_needed (display_name);
 217         }
 218
 219         value = g_hash_table_lookup (args, "screen");
 220         if (value) {
 221                 gint screen_number;
 222
 223                 screen_number = g_value_get_int (value);
 224                 screen = gdk_display_get_screen (display, screen_number);
 225         }
 226
 227         return screen;
 228 }
 229
 230 static EvWindowRunMode
 231 get_window_run_mode_from_args (GHashTable *args)
 232 {
 233         EvWindowRunMode  mode = EV_WINDOW_MODE_NORMAL;
 234         GValue          *value = NULL;
 235
 236         g_assert (args != NULL);
 237
 238         value = g_hash_table_lookup (args, "mode");
 239         if (value) {
 240                 mode = g_value_get_uint (value);
 241         }
 242
 243         return mode;
 244 }
 245
 246 static EvLinkDest *
 247 get_destination_from_args (GHashTable *args)
 248 {
 249         EvLinkDest *dest = NULL;
 250         GValue     *value = NULL;
 251
 252         g_assert (args != NULL);
 253
 254         value = g_hash_table_lookup (args, "page-label");
 255         if (value) {
 256                 const gchar *page_label;
 257
 258                 page_label = g_value_get_string (value);
 259                 dest = ev_link_dest_new_page_label (page_label);
 260         }
 261
 262         return dest;
 263 }
 264
 265 static gboolean
 266 get_unlink_temp_file_from_args (GHashTable *args)
 267 {
 268         gboolean unlink_temp_file = FALSE;
 269         GValue  *value = NULL;
 270
 271         g_assert (args != NULL);
 272
 273         value = g_hash_table_lookup (args, "unlink-temp-file");
 274         if (value) {
 275                 unlink_temp_file = g_value_get_boolean (value);
 276         }
 277
 278         return unlink_temp_file;
 279 }
 280
 281 gboolean
 282 ev_application_open_window (EvApplication  *application,
 283                             GHashTable     *args,
 284                             guint32         timestamp,
 285                             GError        **error)
 286 {
 287         GtkWidget *new_window = ev_window_new ();
 288         GdkScreen *screen = NULL;
 289
 290         if (args) {
 291                 screen = get_screen_from_args (args);
 292         }
 293
 294         if (screen) {
 295                 gtk_window_set_screen (GTK_WINDOW (new_window), screen);
 296         }
 297
 298         gtk_widget_show (new_window);
 299
 300         gtk_window_present_with_time (GTK_WINDOW (new_window),
 301                                       timestamp);
 302         return TRUE;
 303 }
 304
 305 static EvWindow *
 306 ev_application_get_empty_window (EvApplication *application,
 307                                  GdkScreen     *screen)
 308 {
 309         EvWindow *empty_window = NULL;
 310         GList *windows = ev_application_get_windows (application);
 311         GList *l;
 312
 313         for (l = windows; l != NULL; l = l->next) {
 314                 EvWindow *window = EV_WINDOW (l->data);
 315
 316                 if (ev_window_is_empty (window) &&
 317                     gtk_window_get_screen (GTK_WINDOW (window)) == screen) {
 318                         empty_window = window;
 319                         break;
 320                 }
 321         }
 322
 323         g_list_free (windows);
 324
 325         return empty_window;
 326 }
 327
 328 static EvWindow *
 329 ev_application_get_uri_window (EvApplication *application, const char *uri)
 330 {
 331         EvWindow *uri_window = NULL;
 332         GList *windows = gtk_window_list_toplevels ();
 333         GList *l;
 334
 335         g_return_val_if_fail (uri != NULL, NULL);
 336
 337         for (l = windows; l != NULL; l = l->next) {
 338                 if (EV_IS_WINDOW (l->data)) {
 339                         EvWindow *window = EV_WINDOW (l->data);
 340                         const char *window_uri = ev_window_get_uri (window);
 341
 342                         if (window_uri && strcmp (window_uri, uri) == 0 && !ev_window_is_empty (window)) {
 343                                 uri_window = window;
 344                                 break;
 345                         }
 346                 }
 347         }
 348
 349         g_list_free (windows);
 350
 351         return uri_window;
 352 }
 353
 354 void
 355 ev_application_open_uri_at_dest (EvApplication  *application,
 356                                  const char     *uri,
 357                                  GdkScreen      *screen,
 358                                  EvLinkDest     *dest,
 359                                  EvWindowRunMode mode,
 360                                  gboolean        unlink_temp_file,
 361                                  guint           timestamp)
 362 {
 363         EvWindow *new_window;
 364
 365         g_return_if_fail (uri != NULL);
 366
 367         new_window = ev_application_get_uri_window (application, uri);
 368
 369         if (new_window == NULL) {
 370                 new_window = ev_application_get_empty_window (application, screen);
 371         }
 372
 373         if (new_window == NULL) {
 374                 new_window = EV_WINDOW (ev_window_new ());
 375         }
 376
 377         if (screen)
 378                 gtk_window_set_screen (GTK_WINDOW (new_window), screen);
 379
 380         /* We need to load uri before showing the window, so
 381            we can restore window size without flickering */
 382         ev_window_open_uri (new_window, uri, dest, mode, unlink_temp_file);
 383
 384         gtk_widget_show (GTK_WIDGET (new_window));
 385
 386         gtk_window_present_with_time (GTK_WINDOW (new_window),
 387                                       timestamp);
 388 }
 389
 390 gboolean
 391 ev_application_open_uri (EvApplication  *application,
 392                          const char     *uri,
 393                          GHashTable     *args,
 394                          guint           timestamp,
 395                          GError        **error)
 396 {
 397         EvLinkDest      *dest = NULL;
 398         EvWindowRunMode  mode = EV_WINDOW_MODE_NORMAL;
 399         gboolean         unlink_temp_file = FALSE;
 400         GdkScreen       *screen = NULL;
 401
 402         if (args) {
 403                 screen = get_screen_from_args (args);
 404                 dest = get_destination_from_args (args);
 405                 mode = get_window_run_mode_from_args (args);
 406                 unlink_temp_file = (mode == EV_WINDOW_MODE_PREVIEW &&
 407                                     get_unlink_temp_file_from_args (args));
 408         }
 409
 410         ev_application_open_uri_at_dest (application, uri, screen,
 411                                          dest, mode, unlink_temp_file,
 412                                          timestamp);
 413
 414         if (dest)
 415                 g_object_unref (dest);
 416
 417         return TRUE;
 418 }
 419
 420 void
 421 ev_application_open_uri_list (EvApplication *application,
 422                               GSList        *uri_list,
 423                               GdkScreen     *screen,
 424                               guint          timestamp)
 425 {
 426         GSList *l;
 427
 428         for (l = uri_list; l != NULL; l = l->next) {
 429                 ev_application_open_uri_at_dest (application, (char *)l->data,
 430                                                  screen, NULL, 0, FALSE,
 431                                                  timestamp);
 432         }
 433 }
 434
 435 void
 436 ev_application_shutdown (EvApplication *application)
 437 {
 438         if (application->toolbars_model) {
 439                 g_object_unref (application->toolbars_model);
 440                 g_object_unref (application->preview_toolbars_model);
 441                 g_free (application->toolbars_file);
 442                 application->toolbars_model = NULL;
 443                 application->preview_toolbars_model = NULL;
 444                 application->toolbars_file = NULL;
 445         }
 446
 447 #ifndef HAVE_GTK_RECENT
 448         if (application->recent_model) {
 449                 g_object_unref (application->recent_model);
 450                 application->recent_model = NULL;
 451         }
 452 #endif
 453
 454         g_free (application->last_chooser_uri);
 455         g_object_unref (application);
 456
 457         gtk_main_quit ();
 458 }
 459
 460 static void
 461 ev_application_class_init (EvApplicationClass *ev_application_class)
 462 {
 463 }
 464
 465 static void
 466 ev_application_init (EvApplication *ev_application)
 467 {
 468         init_session (ev_application);
 469
 470         ev_application->toolbars_model = egg_toolbars_model_new ();
 471
 472         ev_application->toolbars_file = g_build_filename
 473                         (ev_dot_dir (), "evince_toolbar.xml", NULL);
 474
 475         egg_toolbars_model_load_names (ev_application->toolbars_model,
 476                                        DATADIR "/evince-toolbar.xml");
 477
 478         if (!egg_toolbars_model_load_toolbars (ev_application->toolbars_model,
 479                                                ev_application->toolbars_file)) {
 480                 egg_toolbars_model_load_toolbars (ev_application->toolbars_model,
 481                                                   DATADIR"/evince-toolbar.xml");
 482         }
 483
 484         egg_toolbars_model_set_flags (ev_application->toolbars_model, 0,
 485                                       EGG_TB_MODEL_NOT_REMOVABLE);
 486
 487         ev_application->preview_toolbars_model = egg_toolbars_model_new ();
 488
 489         egg_toolbars_model_load_toolbars (ev_application->preview_toolbars_model,
 490                                           DATADIR"/evince-preview-toolbar.xml");
 491
 492         egg_toolbars_model_set_flags (ev_application->preview_toolbars_model, 0,
 493                                       EGG_TB_MODEL_NOT_REMOVABLE);
 494
 495 #ifndef HAVE_GTK_RECENT
 496         ev_application->recent_model = egg_recent_model_new (EGG_RECENT_MODEL_SORT_MRU);
 497         /* FIXME we should add a mime type filter but current eggrecent
 498            has only a varargs style api which does not work well when
 499            the list of mime types is dynamic */
 500         egg_recent_model_set_limit (ev_application->recent_model, 5);
 501         egg_recent_model_set_filter_groups (ev_application->recent_model,
 502                                             "Evince", NULL);
 503 #endif /* HAVE_GTK_RECENT */
 504 }
 505
 506 GList *
 507 ev_application_get_windows (EvApplication *application)
 508 {
 509         GList *l, *toplevels;
 510         GList *windows = NULL;
 511
 512         toplevels = gtk_window_list_toplevels ();
 513
 514         for (l = toplevels; l != NULL; l = l->next) {
 515                 if (EV_IS_WINDOW (l->data)) {
 516                         windows = g_list_append (windows, l->data);
 517                 }
 518         }
 519
 520         g_list_free (toplevels);
 521
 522         return windows;
 523 }
 524
 525 EggToolbarsModel *ev_application_get_toolbars_model (EvApplication *application,
 526                                                      gboolean preview)
 527 {
 528         return preview ?
 529             application->preview_toolbars_model : application->toolbars_model;
 530 }
 531
 532 #ifndef HAVE_GTK_RECENT
 533 EggRecentModel *ev_application_get_recent_model (EvApplication *application)
 534 {
 535         return application->recent_model;
 536 }
 537 #endif
 538
 539 void ev_application_save_toolbars_model (EvApplication *application)
 540 {
 541         egg_toolbars_model_save_toolbars (application->toolbars_model,
 542                                           application->toolbars_file, "1.0");
 543 }
 544
 545 void ev_application_set_chooser_uri (EvApplication *application, const gchar *uri)
 546 {
 547         g_free (application->last_chooser_uri);
 548         application->last_chooser_uri = g_strdup (uri);
 549 }
 550
 551 const gchar* ev_application_get_chooser_uri (EvApplication *application)
 552 {
 553         return application->last_chooser_uri;
 554 }
 555
 556 void ev_application_screensaver_enable  (EvApplication   *application)
 557 {
 558         if (application->scr_saver)
 559                 totem_scrsaver_enable (application->scr_saver);
 560 }
 561
 562 void ev_application_screensaver_disable (EvApplication   *application)
 563 {
 564         if (application->scr_saver)
 565                 totem_scrsaver_disable (application->scr_saver);
 566 }