Pileus Git - ~andy/gtk/blob - gtk/gtkfilechooserutils.c

   1 /* GTK - The GIMP Toolkit
   2  * gtkfilechooserutils.c: Private utility functions useful for
   3  *                        implementing a GtkFileChooser interface
   4  * Copyright (C) 2003, Red Hat, Inc.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #include "gtkfilechooserutils.h"
  23 #include "gtkfilechooser.h"
  24 #include "gtkfilesystem.h"
  25 #include "gtktypebuiltins.h"
  26
  27 static void           delegate_set_current_folder     (GtkFileChooser    *chooser,
  28                                                        const GtkFilePath *path);
  29 static GtkFilePath *  delegate_get_current_folder     (GtkFileChooser    *chooser);
  30 static void           delegate_set_current_name       (GtkFileChooser    *chooser,
  31                                                        const gchar       *name);
  32 static void           delegate_select_path            (GtkFileChooser    *chooser,
  33                                                        const GtkFilePath *path);
  34 static void           delegate_unselect_path          (GtkFileChooser    *chooser,
  35                                                        const GtkFilePath *path);
  36 static void           delegate_select_all             (GtkFileChooser    *chooser);
  37 static void           delegate_unselect_all           (GtkFileChooser    *chooser);
  38 static GSList *       delegate_get_paths              (GtkFileChooser    *chooser);
  39 static GtkFilePath *  delegate_get_preview_path       (GtkFileChooser    *chooser);
  40 static GtkFileSystem *delegate_get_file_system        (GtkFileChooser    *chooser);
  41 static void           delegate_add_filter             (GtkFileChooser    *chooser,
  42                                                        GtkFileFilter     *filter);
  43 static void           delegate_remove_filter          (GtkFileChooser    *chooser,
  44                                                        GtkFileFilter     *filter);
  45 static GSList *       delegate_list_filters           (GtkFileChooser    *chooser);
  46 static gboolean       delegate_add_shortcut_folder    (GtkFileChooser    *chooser,
  47                                                        const GtkFilePath *path,
  48                                                        GError           **error);
  49 static gboolean       delegate_remove_shortcut_folder (GtkFileChooser    *chooser,
  50                                                        const GtkFilePath *path,
  51                                                        GError           **error);
  52 static GSList *       delegate_list_shortcut_folders  (GtkFileChooser    *chooser);
  53 static void           delegate_notify                 (GObject           *object,
  54                                                        GParamSpec        *pspec,
  55                                                        gpointer           data);
  56 static void           delegate_current_folder_changed (GtkFileChooser    *chooser,
  57                                                        gpointer           data);
  58 static void           delegate_selection_changed      (GtkFileChooser    *chooser,
  59                                                        gpointer           data);
  60 static void           delegate_update_preview         (GtkFileChooser    *chooser,
  61                                                        gpointer           data);
  62 static void           delegate_file_activated         (GtkFileChooser    *chooser,
  63                                                        gpointer           data);
  64
  65 /**
  66  * _gtk_file_chooser_install_properties:
  67  * @klass: the class structure for a type deriving from #GObject
  68  *
  69  * Installs the necessary properties for a class implementing
  70  * #GtkFileChooser. A #GtkParamSpecOverride property is installed
  71  * for each property, using the values from the #GtkFileChooserProp
  72  * enumeration. The caller must make sure itself that the enumeration
  73  * values don't collide with some other property values they
  74  * are using.
  75  **/
  76 void
  77 _gtk_file_chooser_install_properties (GObjectClass *klass)
  78 {
  79   g_object_class_override_property (klass,
  80                                     GTK_FILE_CHOOSER_PROP_ACTION,
  81                                     "action");
  82   g_object_class_override_property (klass,
  83                                     GTK_FILE_CHOOSER_PROP_EXTRA_WIDGET,
  84                                     "extra-widget");
  85   g_object_class_override_property (klass,
  86                                     GTK_FILE_CHOOSER_PROP_FILE_SYSTEM,
  87                                     "file-system");
  88   g_object_class_override_property (klass,
  89                                     GTK_FILE_CHOOSER_PROP_FILTER,
  90                                     "filter");
  91   g_object_class_override_property (klass,
  92                                     GTK_FILE_CHOOSER_PROP_FOLDER_MODE,
  93                                     "folder-mode");
  94   g_object_class_override_property (klass,
  95                                     GTK_FILE_CHOOSER_PROP_LOCAL_ONLY,
  96                                     "local-only");
  97   g_object_class_override_property (klass,
  98                                     GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET,
  99                                     "preview-widget");
 100   g_object_class_override_property (klass,
 101                                     GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET_ACTIVE,
 102                                     "preview-widget-active");
 103   g_object_class_override_property (klass,
 104                                     GTK_FILE_CHOOSER_PROP_SELECT_MULTIPLE,
 105                                     "select-multiple");
 106   g_object_class_override_property (klass,
 107                                     GTK_FILE_CHOOSER_PROP_SHOW_HIDDEN,
 108                                     "show-hidden");
 109 }
 110
 111 /**
 112  * _gtk_file_chooser_delegate_iface_init:
 113  * @iface: a #GtkFileChoserIface structure
 114  *
 115  * An interface-initialization function for use in cases where
 116  * an object is simply delegating the methods, signals of
 117  * the #GtkFileChooser interface to another object.
 118  * _gtk_file_chooser_set_delegate() must be called on each
 119  * instance of the object so that the delegate object can
 120  * be found.
 121  **/
 122 void
 123 _gtk_file_chooser_delegate_iface_init (GtkFileChooserIface *iface)
 124 {
 125   iface->set_current_folder = delegate_set_current_folder;
 126   iface->get_current_folder = delegate_get_current_folder;
 127   iface->set_current_name = delegate_set_current_name;
 128   iface->select_path = delegate_select_path;
 129   iface->unselect_path = delegate_unselect_path;
 130   iface->select_all = delegate_select_all;
 131   iface->unselect_all = delegate_unselect_all;
 132   iface->get_paths = delegate_get_paths;
 133   iface->get_preview_path = delegate_get_preview_path;
 134   iface->get_file_system = delegate_get_file_system;
 135   iface->add_filter = delegate_add_filter;
 136   iface->remove_filter = delegate_remove_filter;
 137   iface->list_filters = delegate_list_filters;
 138   iface->add_shortcut_folder = delegate_add_shortcut_folder;
 139   iface->remove_shortcut_folder = delegate_remove_shortcut_folder;
 140   iface->list_shortcut_folders = delegate_list_shortcut_folders;
 141 }
 142
 143 /**
 144  * _gtk_file_chooser_set_delegate:
 145  * @receiver: a GOobject implementing #GtkFileChooser
 146  * @delegate: another GObject implementing #GtkFileChooser
 147  *
 148  * Establishes that calls on @receiver for #GtkFileChooser
 149  * methods should be delegated to @delegate, and that
 150  * #GtkFileChooser signals emitted on @delegate should be
 151  * forwarded to @receiver. Must be used in confunction with
 152  * _gtk_file_chooser_delegate_iface_init().
 153  **/
 154 void
 155 _gtk_file_chooser_set_delegate (GtkFileChooser *receiver,
 156                                 GtkFileChooser *delegate)
 157 {
 158   g_return_if_fail (GTK_IS_FILE_CHOOSER (receiver));
 159   g_return_if_fail (GTK_IS_FILE_CHOOSER (delegate));
 160
 161   g_object_set_data (G_OBJECT (receiver), "gtk-file-chooser-delegate", delegate);
 162
 163   g_signal_connect (delegate, "notify",
 164                     G_CALLBACK (delegate_notify), receiver);
 165   g_signal_connect (delegate, "current-folder-changed",
 166                     G_CALLBACK (delegate_current_folder_changed), receiver);
 167   g_signal_connect (delegate, "selection-changed",
 168                     G_CALLBACK (delegate_selection_changed), receiver);
 169   g_signal_connect (delegate, "update-preview",
 170                     G_CALLBACK (delegate_update_preview), receiver);
 171   g_signal_connect (delegate, "file-activated",
 172                     G_CALLBACK (delegate_file_activated), receiver);
 173 }
 174
 175 static GtkFileChooser *
 176 get_delegate (GtkFileChooser *receiver)
 177 {
 178   return g_object_get_data (G_OBJECT (receiver), "gtk-file-chooser-delegate");
 179 }
 180
 181 static void
 182 delegate_select_path (GtkFileChooser    *chooser,
 183                       const GtkFilePath *path)
 184 {
 185   _gtk_file_chooser_select_path (get_delegate (chooser), path);
 186 }
 187
 188 static void
 189 delegate_unselect_path (GtkFileChooser    *chooser,
 190                         const GtkFilePath *path)
 191 {
 192   _gtk_file_chooser_unselect_path (get_delegate (chooser), path);
 193 }
 194
 195 static void
 196 delegate_select_all (GtkFileChooser *chooser)
 197 {
 198   gtk_file_chooser_select_all (get_delegate (chooser));
 199 }
 200
 201 static void
 202 delegate_unselect_all (GtkFileChooser *chooser)
 203 {
 204   gtk_file_chooser_unselect_all (get_delegate (chooser));
 205 }
 206
 207 static GSList *
 208 delegate_get_paths (GtkFileChooser *chooser)
 209 {
 210   return _gtk_file_chooser_get_paths (get_delegate (chooser));
 211 }
 212
 213 static GtkFilePath *
 214 delegate_get_preview_path (GtkFileChooser *chooser)
 215 {
 216   return _gtk_file_chooser_get_preview_path (get_delegate (chooser));
 217 }
 218
 219 static GtkFileSystem *
 220 delegate_get_file_system (GtkFileChooser *chooser)
 221 {
 222   return _gtk_file_chooser_get_file_system (get_delegate (chooser));
 223 }
 224
 225 static void
 226 delegate_add_filter (GtkFileChooser *chooser,
 227                      GtkFileFilter  *filter)
 228 {
 229   gtk_file_chooser_add_filter (get_delegate (chooser), filter);
 230 }
 231
 232 static void
 233 delegate_remove_filter (GtkFileChooser *chooser,
 234                         GtkFileFilter  *filter)
 235 {
 236   gtk_file_chooser_remove_filter (get_delegate (chooser), filter);
 237 }
 238
 239 static GSList *
 240 delegate_list_filters (GtkFileChooser *chooser)
 241 {
 242   return gtk_file_chooser_list_filters (get_delegate (chooser));
 243 }
 244
 245 static gboolean
 246 delegate_add_shortcut_folder (GtkFileChooser    *chooser,
 247                               const GtkFilePath *path,
 248                               GError           **error)
 249 {
 250   return _gtk_file_chooser_add_shortcut_folder (get_delegate (chooser), path, error);
 251 }
 252
 253 static gboolean
 254 delegate_remove_shortcut_folder (GtkFileChooser    *chooser,
 255                                  const GtkFilePath *path,
 256                                  GError           **error)
 257 {
 258   return _gtk_file_chooser_remove_shortcut_folder (get_delegate (chooser), path, error);
 259 }
 260
 261 static GSList *
 262 delegate_list_shortcut_folders (GtkFileChooser *chooser)
 263 {
 264   return gtk_file_chooser_list_shortcut_folders (get_delegate (chooser));
 265 }
 266
 267 static void
 268 delegate_set_current_folder (GtkFileChooser    *chooser,
 269                              const GtkFilePath *path)
 270 {
 271   _gtk_file_chooser_set_current_folder_path (chooser, path);
 272 }
 273
 274 static GtkFilePath *
 275 delegate_get_current_folder (GtkFileChooser *chooser)
 276 {
 277   return _gtk_file_chooser_get_current_folder_path (get_delegate (chooser));
 278 }
 279
 280 static void
 281 delegate_set_current_name (GtkFileChooser *chooser,
 282                            const gchar    *name)
 283 {
 284   gtk_file_chooser_set_current_name (get_delegate (chooser), name);
 285 }
 286
 287 static void
 288 delegate_notify (GObject    *object,
 289                  GParamSpec *pspec,
 290                  gpointer    data)
 291 {
 292   if (pspec->param_id >= GTK_FILE_CHOOSER_PROP_FIRST &&
 293       pspec->param_id <= GTK_FILE_CHOOSER_PROP_LAST)
 294     {
 295       g_object_notify (data, pspec->name);
 296     }
 297 }
 298
 299 static void
 300 delegate_selection_changed (GtkFileChooser *chooser,
 301                             gpointer        data)
 302 {
 303   g_signal_emit_by_name (data, "selection-changed");
 304 }
 305
 306 static void
 307 delegate_current_folder_changed (GtkFileChooser *chooser,
 308                                  gpointer        data)
 309 {
 310   g_signal_emit_by_name (data, "current-folder-changed");
 311 }
 312
 313 static void
 314 delegate_update_preview (GtkFileChooser    *chooser,
 315                          gpointer           data)
 316 {
 317   g_signal_emit_by_name (data, "update-preview");
 318 }
 319
 320 static void
 321 delegate_file_activated (GtkFileChooser    *chooser,
 322                          gpointer           data)
 323 {
 324   g_signal_emit_by_name (data, "file-activated");
 325 }