src/nautilus-throbber.c

   1 /* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
   2
   3 /*
   4  * Nautilus
   5  *
   6  * Copyright (C) 2000 Eazel, Inc.
   7  * Copyright (C) 2006 Christian Persch
   8  *
   9  * Nautilus is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * Nautilus is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  *
  23  * Author: Andy Hertzfeld <andy@eazel.com>
  24  *
  25  * This is the throbber (for busy feedback) for the location bar
  26  *
  27  */
  28
  29 #include <config.h>
  30
  31 #include "nautilus-throbber.h"
  32
  33 #include <eel/eel-debug.h>
  34 #include <eel/eel-glib-extensions.h>
  35 #include <eel/eel-gtk-extensions.h>
  36 #include <eel/eel-accessibility.h>
  37 #include <glib/gi18n.h>
  38
  39 static AtkObject *nautilus_throbber_get_accessible   (GtkWidget *widget);
  40
  41 G_DEFINE_TYPE (NautilusThrobber, nautilus_throbber, EPHY_TYPE_SPINNER)
  42
  43 static void
  44 nautilus_throbber_init (NautilusThrobber *throbber)
  45 {
  46 }
  47
  48 void
  49 nautilus_throbber_start (NautilusThrobber *throbber)
  50 {
  51         ephy_spinner_start (EPHY_SPINNER (throbber));
  52 }
  53
  54 void
  55 nautilus_throbber_stop (NautilusThrobber *throbber)
  56 {
  57         ephy_spinner_stop (EPHY_SPINNER (throbber));
  58 }
  59
  60 void
  61 nautilus_throbber_set_size (NautilusThrobber *throbber, GtkIconSize size)
  62 {
  63         ephy_spinner_set_size (EPHY_SPINNER (throbber), size);
  64 }
  65
  66 static void
  67 nautilus_throbber_class_init (NautilusThrobberClass *class)
  68 {
  69         GtkWidgetClass *widget_class;
  70
  71         widget_class = GTK_WIDGET_CLASS (class);
  72
  73         widget_class->get_accessible = nautilus_throbber_get_accessible;
  74 }
  75
  76 static AtkObjectClass *a11y_parent_class = NULL;
  77
  78 static void
  79 nautilus_throbber_accessible_initialize (AtkObject *accessible,
  80                                          gpointer   widget)
  81 {
  82         atk_object_set_name (accessible, _("throbber"));
  83         atk_object_set_description (accessible, _("provides visual status"));
  84
  85         a11y_parent_class->initialize (accessible, widget);
  86 }
  87
  88 static void
  89 nautilus_throbber_accessible_class_init (AtkObjectClass *klass)
  90 {
  91         a11y_parent_class = g_type_class_peek_parent (klass);
  92
  93         klass->initialize = nautilus_throbber_accessible_initialize;
  94 }
  95
  96 static void
  97 nautilus_throbber_accessible_image_get_size (AtkImage *image,
  98                                              gint     *width,
  99                                              gint     *height)
 100 {
 101         GtkWidget *widget;
 102
 103         widget = GTK_ACCESSIBLE (image)->widget;
 104         if (!widget) {
 105                 *width = *height = 0;
 106         } else {
 107                 *width = widget->allocation.width;
 108                 *height = widget->allocation.height;
 109         }
 110 }
 111
 112 static void
 113 nautilus_throbber_accessible_image_interface_init (AtkImageIface *iface)
 114 {
 115         iface->get_image_size = nautilus_throbber_accessible_image_get_size;
 116 }
 117
 118 static GType
 119 nautilus_throbber_accessible_get_type (void)
 120 {
 121         static GType type = 0;
 122
 123         /* Action interface
 124            Name etc. ... */
 125         if (G_UNLIKELY (type == 0)) {
 126                 const GInterfaceInfo atk_image_info = {
 127                         (GInterfaceInitFunc) nautilus_throbber_accessible_image_interface_init,
 128                         (GInterfaceFinalizeFunc) NULL,
 129                         NULL
 130                 };
 131
 132                 type = eel_accessibility_create_derived_type
 133                         ("NautilusThrobberAccessible",
 134                          GTK_TYPE_IMAGE,
 135                          nautilus_throbber_accessible_class_init);
 136
 137                 g_type_add_interface_static (type, ATK_TYPE_IMAGE,
 138                                              &atk_image_info);
 139         }
 140
 141         return type;
 142 }
 143
 144 static AtkObject *
 145 nautilus_throbber_get_accessible (GtkWidget *widget)
 146 {
 147         AtkObject *accessible;
 148
 149         if ((accessible = eel_accessibility_get_atk_object (widget))) {
 150                 return accessible;
 151         }
 152
 153         accessible = g_object_new
 154                 (nautilus_throbber_accessible_get_type (), NULL);
 155
 156         return eel_accessibility_set_atk_object_return (widget, accessible);
 157 }
 158
 159 GtkWidget    *
 160 nautilus_throbber_new (void)
 161 {
 162         return g_object_new (NAUTILUS_TYPE_THROBBER, NULL);
 163 }