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 #include "ev-application.h"
  24
  25 #include <glib.h>
  26 #include <glib/gi18n.h>
  27 #include <glib-object.h>
  28 #include <gtk/gtkfilechooserdialog.h>
  29 #include <gtk/gtkstock.h>
  30 #include <gtk/gtkwidget.h>
  31 #include <bonobo/bonobo-main.h>
  32
  33 #include <ev-macros.h>
  34 #include <ev-window.h>
  35
  36 struct _EvApplicationPrivate {
  37         GList *windows;
  38 };
  39
  40 G_DEFINE_TYPE (EvApplication, ev_application, G_TYPE_OBJECT);
  41
  42 #define EV_APPLICATION_GET_PRIVATE(object) \
  43         (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_APPLICATION, EvApplicationPrivate))
  44
  45 EvApplication *
  46 ev_application_get_instance (void)
  47 {
  48         static EvApplication *instance;
  49
  50         if (!instance)
  51                 instance = EV_APPLICATION (
  52                         g_object_new (EV_TYPE_APPLICATION, NULL));
  53
  54         return instance;
  55 }
  56
  57 static void
  58 window_destroy_cb (GtkObject *object, gpointer user_data)
  59 {
  60         EvApplication *application;
  61
  62         g_return_if_fail (EV_IS_WINDOW (object));
  63         g_return_if_fail (EV_IS_APPLICATION (user_data));
  64
  65         application = EV_APPLICATION (user_data);
  66         application->priv->windows =
  67                 g_list_remove (application->priv->windows, object);
  68
  69         if (application->priv->windows == NULL)
  70                 bonobo_main_quit ();
  71 }
  72
  73 EvWindow *
  74 ev_application_new_window (EvApplication *application)
  75 {
  76         EvWindow *ev_window;
  77
  78         ev_window = EV_WINDOW (g_object_new (EV_TYPE_WINDOW,
  79                                              "type", GTK_WINDOW_TOPLEVEL,
  80                                              "default-height", 600,
  81                                              "default-width", 600,
  82                                              NULL));
  83         application->priv->windows =
  84                 g_list_prepend (application->priv->windows, ev_window);
  85         g_signal_connect (G_OBJECT (ev_window), "destroy",
  86                           G_CALLBACK (window_destroy_cb), application);
  87
  88         return ev_window;
  89 }
  90
  91 static int
  92 is_window_empty (const EvWindow *ev_window, gconstpointer dummy)
  93 {
  94         g_return_val_if_fail (EV_IS_WINDOW (ev_window), 0);
  95
  96         return ev_window_is_empty (ev_window)
  97                 ? 0
  98                 : -1;
  99 }
 100
 101 static EvWindow *
 102 ev_application_get_empty_window (EvApplication *application)
 103 {
 104         GList *node;
 105
 106         node = g_list_find_custom (application->priv->windows, NULL,
 107                                    (GCompareFunc)is_window_empty);
 108
 109         return node && node->data
 110                 ? EV_WINDOW (node->data)
 111                 : ev_application_new_window (application);
 112 }
 113
 114 void
 115 ev_application_open (EvApplication *application, GError *err)
 116 {
 117         EvWindow *ev_window;
 118         GtkWidget *chooser;
 119         GtkFileFilter *both_filter, *pdf_filter, *ps_filter, *all_filter;
 120
 121
 122         ev_window = ev_application_get_empty_window (application);
 123
 124         chooser = gtk_file_chooser_dialog_new (_("Open document"),
 125                                                GTK_WINDOW (ev_window),
 126                                                GTK_FILE_CHOOSER_ACTION_OPEN,
 127                                                GTK_STOCK_CANCEL,
 128                                                GTK_RESPONSE_CANCEL,
 129                                                GTK_STOCK_OPEN, GTK_RESPONSE_OK,
 130                                                NULL);
 131
 132         both_filter = gtk_file_filter_new ();
 133         gtk_file_filter_set_name (both_filter,
 134                                   _("PostScript and PDF Documents"));
 135         gtk_file_filter_add_mime_type (both_filter, "application/postscript");
 136         gtk_file_filter_add_mime_type (both_filter, "application/pdf");
 137         gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), both_filter);
 138
 139         ps_filter = gtk_file_filter_new ();
 140         gtk_file_filter_set_name (ps_filter, _("PostScript Documents"));
 141         gtk_file_filter_add_mime_type (ps_filter, "application/postscript");
 142         gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), ps_filter);
 143
 144         pdf_filter = gtk_file_filter_new ();
 145         gtk_file_filter_set_name (pdf_filter, _("PDF Documents"));
 146         gtk_file_filter_add_mime_type (pdf_filter, "application/pdf");
 147         gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), pdf_filter);
 148
 149         all_filter = gtk_file_filter_new ();
 150         gtk_file_filter_set_name (all_filter, _("All Files"));
 151         gtk_file_filter_add_pattern (all_filter, "*");
 152         gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), all_filter);
 153
 154         gtk_file_chooser_set_filter (GTK_FILE_CHOOSER (chooser), both_filter);
 155
 156         if (gtk_dialog_run (GTK_DIALOG (chooser)) == GTK_RESPONSE_OK) {
 157                 char *uri;
 158
 159                 uri = gtk_file_chooser_get_uri (GTK_FILE_CHOOSER (chooser));
 160                 ev_window_open (ev_window, uri);
 161                 gtk_widget_show (GTK_WIDGET (ev_window));
 162                 g_free (uri);
 163         }
 164
 165         gtk_widget_destroy (GTK_WIDGET (chooser));
 166 }
 167
 168 static void
 169 ev_application_finalize (GObject *object)
 170 {
 171         g_return_if_fail (object != NULL && EV_IS_APPLICATION (object));
 172
 173         EV_APPLICATION (object)->priv = NULL;
 174
 175         EV_CALL_VIRTUAL (
 176                 G_OBJECT_CLASS (ev_application_parent_class), finalize, (object));
 177 }
 178
 179 static void
 180 ev_application_class_init (EvApplicationClass *ev_application_class)
 181 {
 182         GObjectClass *g_object_class;
 183
 184         g_object_class = G_OBJECT_CLASS (ev_application_class);
 185         g_object_class->finalize = ev_application_finalize;
 186
 187         g_type_class_add_private (g_object_class,
 188                                   sizeof (EvApplicationPrivate));
 189 }
 190
 191 static void
 192 ev_application_init (EvApplication *ev_application)
 193 {
 194         ev_application->priv = EV_APPLICATION_GET_PRIVATE (ev_application);
 195 }
 196