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