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