gio/gmenumodel.h

   1 /*
   2  * Copyright © 2011 Canonical Ltd.
   3  *
   4  * This library is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU Lesser General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * licence, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  17  * USA.
  18  *
  19  * Author: Ryan Lortie <desrt@desrt.ca>
  20  */
  21
  22 #ifndef __G_MENU_MODEL_H__
  23 #define __G_MENU_MODEL_H__
  24
  25 #include <glib-object.h>
  26
  27 #include <gio/giotypes.h>
  28
  29 G_BEGIN_DECLS
  30
  31 #define G_MENU_ATTRIBUTE_ACTION "action"
  32 #define G_MENU_ATTRIBUTE_TARGET "target"
  33 #define G_MENU_ATTRIBUTE_LABEL "label"
  34
  35 #define G_MENU_LINK_SUBMENU "submenu"
  36 #define G_MENU_LINK_SECTION "section"
  37
  38 #define G_TYPE_MENU_MODEL                                   (g_menu_model_get_type ())
  39 #define G_MENU_MODEL(inst)                                  (G_TYPE_CHECK_INSTANCE_CAST ((inst),                     \
  40                                                              G_TYPE_MENU_MODEL, GMenuModel))
  41 #define G_MENU_MODEL_CLASS(class)                           (G_TYPE_CHECK_CLASS_CAST ((class),                       \
  42                                                              G_TYPE_MENU_MODEL, GMenuModelClass))
  43 #define G_IS_MENU_MODEL(inst)                               (G_TYPE_CHECK_INSTANCE_TYPE ((inst),                     \
  44                                                              G_TYPE_MENU_MODEL))
  45 #define G_IS_MENU_MODEL_CLASS(class)                        (G_TYPE_CHECK_CLASS_TYPE ((class),                       \
  46                                                              G_TYPE_MENU_MODEL))
  47 #define G_MENU_MODEL_GET_CLASS(inst)                        (G_TYPE_INSTANCE_GET_CLASS ((inst),                      \
  48                                                              G_TYPE_MENU_MODEL, GMenuModelClass))
  49
  50 typedef struct _GMenuModelPrivate                           GMenuModelPrivate;
  51 typedef struct _GMenuModelClass                             GMenuModelClass;
  52
  53 typedef struct _GMenuAttributeIterPrivate                   GMenuAttributeIterPrivate;
  54 typedef struct _GMenuAttributeIterClass                     GMenuAttributeIterClass;
  55 typedef struct _GMenuAttributeIter                          GMenuAttributeIter;
  56
  57 typedef struct _GMenuLinkIterPrivate                        GMenuLinkIterPrivate;
  58 typedef struct _GMenuLinkIterClass                          GMenuLinkIterClass;
  59 typedef struct _GMenuLinkIter                               GMenuLinkIter;
  60
  61 struct _GMenuModel
  62 {
  63   GObject            parent_instance;
  64   GMenuModelPrivate *priv;
  65 };
  66
  67 struct _GMenuModelClass
  68 {
  69   GObjectClass parent_class;
  70
  71   gboolean              (*is_mutable)                       (GMenuModel          *model);
  72   gint                  (*get_n_items)                      (GMenuModel          *model);
  73   void                  (*get_item_attributes)              (GMenuModel          *model,
  74                                                              gint                 item_index,
  75                                                              GHashTable         **attributes);
  76   GMenuAttributeIter *  (*iterate_item_attributes)          (GMenuModel          *model,
  77                                                              gint                 item_index);
  78   GVariant *            (*get_item_attribute_value)         (GMenuModel          *model,
  79                                                              gint                 item_index,
  80                                                              const gchar         *attribute,
  81                                                              const GVariantType  *expected_type);
  82   void                  (*get_item_links)                   (GMenuModel          *model,
  83                                                              gint                 item_index,
  84                                                              GHashTable         **links);
  85   GMenuLinkIter *       (*iterate_item_links)               (GMenuModel          *model,
  86                                                              gint                 item_index);
  87   GMenuModel *          (*get_item_link)                    (GMenuModel          *model,
  88                                                              gint                 item_index,
  89                                                              const gchar         *link);
  90 };
  91
  92 GType                   g_menu_model_get_type                           (void) G_GNUC_CONST;
  93
  94 gboolean                g_menu_model_is_mutable                         (GMenuModel         *model);
  95 gint                    g_menu_model_get_n_items                        (GMenuModel         *model);
  96
  97 GMenuAttributeIter *    g_menu_model_iterate_item_attributes            (GMenuModel         *model,
  98                                                                          gint                item_index);
  99 GVariant *              g_menu_model_get_item_attribute_value           (GMenuModel         *model,
 100                                                                          gint                item_index,
 101                                                                          const gchar        *attribute,
 102                                                                          const GVariantType *expected_type);
 103 gboolean                g_menu_model_get_item_attribute                 (GMenuModel         *model,
 104                                                                          gint                item_index,
 105                                                                          const gchar        *attribute,
 106                                                                          const gchar        *format_string,
 107                                                                          ...);
 108 GMenuLinkIter *         g_menu_model_iterate_item_links                 (GMenuModel         *model,
 109                                                                          gint                item_index);
 110 GMenuModel *            g_menu_model_get_item_link                      (GMenuModel         *model,
 111                                                                          gint                item_index,
 112                                                                          const gchar        *link);
 113
 114 void                    g_menu_model_items_changed                      (GMenuModel         *model,
 115                                                                          gint                position,
 116                                                                          gint                removed,
 117                                                                          gint                added);
 118
 119
 120 #define G_TYPE_MENU_ATTRIBUTE_ITER                          (g_menu_attribute_iter_get_type ())
 121 #define G_MENU_ATTRIBUTE_ITER(inst)                         (G_TYPE_CHECK_INSTANCE_CAST ((inst),                     \
 122                                                              G_TYPE_MENU_ATTRIBUTE_ITER, GMenuAttributeIter))
 123 #define G_MENU_ATTRIBUTE_ITER_CLASS(class)                  (G_TYPE_CHECK_CLASS_CAST ((class),                       \
 124                                                              G_TYPE_MENU_ATTRIBUTE_ITER, GMenuAttributeIterClass))
 125 #define G_IS_MENU_ATTRIBUTE_ITER(inst)                      (G_TYPE_CHECK_INSTANCE_TYPE ((inst),                     \
 126                                                              G_TYPE_MENU_ATTRIBUTE_ITER))
 127 #define G_IS_MENU_ATTRIBUTE_ITER_CLASS(class)               (G_TYPE_CHECK_CLASS_TYPE ((class),                       \
 128                                                              G_TYPE_MENU_ATTRIBUTE_ITER))
 129 #define G_MENU_ATTRIBUTE_ITER_GET_CLASS(inst)               (G_TYPE_INSTANCE_GET_CLASS ((inst),                      \
 130                                                              G_TYPE_MENU_ATTRIBUTE_ITER, GMenuAttributeIterClass))
 131
 132 struct _GMenuAttributeIter
 133 {
 134   GObject parent_instance;
 135   GMenuAttributeIterPrivate *priv;
 136 };
 137
 138 struct _GMenuAttributeIterClass
 139 {
 140   GObjectClass parent_class;
 141
 142   gboolean      (*get_next) (GMenuAttributeIter  *iter,
 143                              const gchar        **out_type,
 144                              GVariant           **value);
 145 };
 146
 147 GType                   g_menu_attribute_iter_get_type                  (void) G_GNUC_CONST;
 148
 149 gboolean                g_menu_attribute_iter_get_next                  (GMenuAttributeIter  *iter,
 150                                                                          const gchar        **out_name,
 151                                                                          GVariant           **value);
 152 gboolean                g_menu_attribute_iter_next                      (GMenuAttributeIter  *iter);
 153 const gchar *           g_menu_attribute_iter_get_name                  (GMenuAttributeIter  *iter);
 154 GVariant *              g_menu_attribute_iter_get_value                 (GMenuAttributeIter  *iter);
 155
 156
 157 #define G_TYPE_MENU_LINK_ITER                               (g_menu_link_iter_get_type ())
 158 #define G_MENU_LINK_ITER(inst)                              (G_TYPE_CHECK_INSTANCE_CAST ((inst),                     \
 159                                                              G_TYPE_MENU_LINK_ITER, GMenuLinkIter))
 160 #define G_MENU_LINK_ITER_CLASS(class)                       (G_TYPE_CHECK_CLASS_CAST ((class),                       \
 161                                                              G_TYPE_MENU_LINK_ITER, GMenuLinkIterClass))
 162 #define G_IS_MENU_LINK_ITER(inst)                           (G_TYPE_CHECK_INSTANCE_TYPE ((inst),                     \
 163                                                              G_TYPE_MENU_LINK_ITER))
 164 #define G_IS_MENU_LINK_ITER_CLASS(class)                    (G_TYPE_CHECK_CLASS_TYPE ((class),                       \
 165                                                              G_TYPE_MENU_LINK_ITER))
 166 #define G_MENU_LINK_ITER_GET_CLASS(inst)                    (G_TYPE_INSTANCE_GET_CLASS ((inst),                      \
 167                                                              G_TYPE_MENU_LINK_ITER, GMenuLinkIterClass))
 168
 169 struct _GMenuLinkIter
 170 {
 171   GObject parent_instance;
 172   GMenuLinkIterPrivate *priv;
 173 };
 174
 175 struct _GMenuLinkIterClass
 176 {
 177   GObjectClass parent_class;
 178
 179   gboolean      (*get_next) (GMenuLinkIter  *iter,
 180                              const gchar   **out_name,
 181                              GMenuModel    **value);
 182 };
 183
 184 GType                   g_menu_link_iter_get_type                       (void) G_GNUC_CONST;
 185
 186 gboolean                g_menu_link_iter_get_next                       (GMenuLinkIter  *iter,
 187                                                                          const gchar   **out_link,
 188                                                                          GMenuModel    **value);
 189 gboolean                g_menu_link_iter_next                           (GMenuLinkIter  *iter);
 190 const gchar *           g_menu_link_iter_get_name                       (GMenuLinkIter  *iter);
 191 GMenuModel *            g_menu_link_iter_get_value                      (GMenuLinkIter  *iter);
 192
 193 G_END_DECLS
 194
 195 #endif /* __G_MENU_MODEL_H__ */