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-document-types.h"
  30
  31 #include <glib.h>
  32 #include <glib/gi18n.h>
  33 #include <glib-object.h>
  34 #include <gtk/gtkfilechooserdialog.h>
  35 #include <gtk/gtkstock.h>
  36 #include <gtk/gtkwidget.h>
  37 #include <gtk/gtkmain.h>
  38
  39 struct _EvApplicationPrivate {
  40         GList *windows;
  41 };
  42
  43 G_DEFINE_TYPE (EvApplication, ev_application, G_TYPE_OBJECT);
  44
  45 #define EV_APPLICATION_GET_PRIVATE(object) \
  46         (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_APPLICATION, EvApplicationPrivate))
  47
  48 EvApplication *
  49 ev_application_get_instance (void)
  50 {
  51         static EvApplication *instance;
  52
  53         if (!instance)
  54                 instance = EV_APPLICATION (
  55                         g_object_new (EV_TYPE_APPLICATION, NULL));
  56
  57         return instance;
  58 }
  59
  60 static void
  61 window_destroy_cb (GtkObject *object, gpointer user_data)
  62 {
  63         EvApplication *application;
  64
  65         g_return_if_fail (EV_IS_WINDOW (object));
  66         g_return_if_fail (EV_IS_APPLICATION (user_data));
  67
  68         application = EV_APPLICATION (user_data);
  69         application->priv->windows =
  70                 g_list_remove (application->priv->windows, object);
  71
  72         if (application->priv->windows == NULL)
  73                 gtk_main_quit ();
  74 }
  75
  76 EvWindow *
  77 ev_application_new_window (EvApplication *application)
  78 {
  79         EvWindow *ev_window;
  80
  81         ev_window = EV_WINDOW (g_object_new (EV_TYPE_WINDOW,
  82                                              "type", GTK_WINDOW_TOPLEVEL,
  83                                              "default-height", 600,
  84                                              "default-width", 600,
  85                                              NULL));
  86         application->priv->windows =
  87                 g_list_prepend (application->priv->windows, ev_window);
  88         g_signal_connect (G_OBJECT (ev_window), "destroy",
  89                           G_CALLBACK (window_destroy_cb), application);
  90
  91         return ev_window;
  92 }
  93
  94 static int
  95 is_window_empty (const EvWindow *ev_window, gconstpointer dummy)
  96 {
  97         g_return_val_if_fail (EV_IS_WINDOW (ev_window), 0);
  98
  99         return ev_window_is_empty (ev_window)
 100                 ? 0
 101                 : -1;
 102 }
 103
 104 EvWindow *
 105 ev_application_get_empty_window (EvApplication *application)
 106 {
 107         GList *node;
 108
 109         node = g_list_find_custom (application->priv->windows, NULL,
 110                                    (GCompareFunc)is_window_empty);
 111
 112         return node && node->data
 113                 ? EV_WINDOW (node->data)
 114                 : ev_application_new_window (application);
 115 }
 116
 117 void
 118 ev_application_open (EvApplication *application, GError *err)
 119 {
 120         EvWindow *ev_window;
 121         GtkWidget *chooser;
 122         static char *folder = NULL;
 123
 124         ev_window = ev_application_get_empty_window (application);
 125
 126         chooser = gtk_file_chooser_dialog_new (_("Open document"),
 127                                                GTK_WINDOW (ev_window),
 128                                                GTK_FILE_CHOOSER_ACTION_OPEN,
 129                                                GTK_STOCK_CANCEL,
 130                                                GTK_RESPONSE_CANCEL,
 131                                                GTK_STOCK_OPEN, GTK_RESPONSE_OK,
 132                                                NULL);
 133
 134         if (folder) {
 135                 gtk_file_chooser_set_current_folder_uri (GTK_FILE_CHOOSER (chooser),
 136                                                          folder);
 137         }
 138
 139         ev_document_types_add_filters (chooser);
 140         gtk_file_chooser_set_select_multiple (GTK_FILE_CHOOSER (chooser), TRUE);
 141         gtk_file_chooser_set_local_only (GTK_FILE_CHOOSER (chooser), FALSE);
 142
 143         if (gtk_dialog_run (GTK_DIALOG (chooser)) == GTK_RESPONSE_OK) {
 144                 GSList *uris;
 145
 146                 uris = gtk_file_chooser_get_uris (GTK_FILE_CHOOSER (chooser));
 147
 148                 if (folder != NULL)
 149                         g_free (folder);
 150
 151                 folder = gtk_file_chooser_get_current_folder_uri (GTK_FILE_CHOOSER (chooser));
 152
 153                 ev_window_open_uri_list (ev_window, uris);
 154
 155                 g_slist_free (uris);
 156         } else {
 157                 if (!GTK_WIDGET_VISIBLE (ev_window))
 158                         gtk_widget_destroy (GTK_WIDGET (ev_window));
 159         }
 160
 161         gtk_widget_destroy (GTK_WIDGET (chooser));
 162 }
 163
 164 static void
 165 ev_application_class_init (EvApplicationClass *ev_application_class)
 166 {
 167         GObjectClass *g_object_class;
 168
 169         g_object_class = G_OBJECT_CLASS (ev_application_class);
 170
 171         g_type_class_add_private (g_object_class,
 172                                   sizeof (EvApplicationPrivate));
 173 }
 174
 175 static void
 176 ev_application_init (EvApplication *ev_application)
 177 {
 178         ev_application->priv = EV_APPLICATION_GET_PRIVATE (ev_application);
 179 }
 180