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_BACKEND,
  87                                     "file-system-backend");
  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_LOCAL_ONLY,
  93                                     "local-only");
  94   g_object_class_override_property (klass,
  95                                     GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET,
  96                                     "preview-widget");
  97   g_object_class_override_property (klass,
  98                                     GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET_ACTIVE,
  99                                     "preview-widget-active");
 100   g_object_class_override_property (klass,
 101                                     GTK_FILE_CHOOSER_PROP_SELECT_MULTIPLE,
 102                                     "select-multiple");
 103   g_object_class_override_property (klass,
 104                                     GTK_FILE_CHOOSER_PROP_SHOW_HIDDEN,
 105                                     "show-hidden");
 106 }
 107
 108 /**
 109  * _gtk_file_chooser_delegate_iface_init:
 110  * @iface: a #GtkFileChoserIface structure
 111  *
 112  * An interface-initialization function for use in cases where
 113  * an object is simply delegating the methods, signals of
 114  * the #GtkFileChooser interface to another object.
 115  * _gtk_file_chooser_set_delegate() must be called on each
 116  * instance of the object so that the delegate object can
 117  * be found.
 118  **/
 119 void
 120 _gtk_file_chooser_delegate_iface_init (GtkFileChooserIface *iface)
 121 {
 122   iface->set_current_folder = delegate_set_current_folder;
 123   iface->get_current_folder = delegate_get_current_folder;
 124   iface->set_current_name = delegate_set_current_name;
 125   iface->select_path = delegate_select_path;
 126   iface->unselect_path = delegate_unselect_path;
 127   iface->select_all = delegate_select_all;
 128   iface->unselect_all = delegate_unselect_all;
 129   iface->get_paths = delegate_get_paths;
 130   iface->get_preview_path = delegate_get_preview_path;
 131   iface->get_file_system = delegate_get_file_system;
 132   iface->add_filter = delegate_add_filter;
 133   iface->remove_filter = delegate_remove_filter;
 134   iface->list_filters = delegate_list_filters;
 135   iface->add_shortcut_folder = delegate_add_shortcut_folder;
 136   iface->remove_shortcut_folder = delegate_remove_shortcut_folder;
 137   iface->list_shortcut_folders = delegate_list_shortcut_folders;
 138 }
 139
 140 /**
 141  * _gtk_file_chooser_set_delegate:
 142  * @receiver: a GOobject implementing #GtkFileChooser
 143  * @delegate: another GObject implementing #GtkFileChooser
 144  *
 145  * Establishes that calls on @receiver for #GtkFileChooser
 146  * methods should be delegated to @delegate, and that
 147  * #GtkFileChooser signals emitted on @delegate should be
 148  * forwarded to @receiver. Must be used in confunction with
 149  * _gtk_file_chooser_delegate_iface_init().
 150  **/
 151 void
 152 _gtk_file_chooser_set_delegate (GtkFileChooser *receiver,
 153                                 GtkFileChooser *delegate)
 154 {
 155   g_return_if_fail (GTK_IS_FILE_CHOOSER (receiver));
 156   g_return_if_fail (GTK_IS_FILE_CHOOSER (delegate));
 157
 158   g_object_set_data (G_OBJECT (receiver), "gtk-file-chooser-delegate", delegate);
 159
 160   g_signal_connect (delegate, "notify",
 161                     G_CALLBACK (delegate_notify), receiver);
 162   g_signal_connect (delegate, "current-folder-changed",
 163                     G_CALLBACK (delegate_current_folder_changed), receiver);
 164   g_signal_connect (delegate, "selection-changed",
 165                     G_CALLBACK (delegate_selection_changed), receiver);
 166   g_signal_connect (delegate, "update-preview",
 167                     G_CALLBACK (delegate_update_preview), receiver);
 168   g_signal_connect (delegate, "file-activated",
 169                     G_CALLBACK (delegate_file_activated), receiver);
 170 }
 171
 172 static GtkFileChooser *
 173 get_delegate (GtkFileChooser *receiver)
 174 {
 175   return g_object_get_data (G_OBJECT (receiver), "gtk-file-chooser-delegate");
 176 }
 177
 178 static void
 179 delegate_select_path (GtkFileChooser    *chooser,
 180                       const GtkFilePath *path)
 181 {
 182   _gtk_file_chooser_select_path (get_delegate (chooser), path);
 183 }
 184
 185 static void
 186 delegate_unselect_path (GtkFileChooser    *chooser,
 187                         const GtkFilePath *path)
 188 {
 189   _gtk_file_chooser_unselect_path (get_delegate (chooser), path);
 190 }
 191
 192 static void
 193 delegate_select_all (GtkFileChooser *chooser)
 194 {
 195   gtk_file_chooser_select_all (get_delegate (chooser));
 196 }
 197
 198 static void
 199 delegate_unselect_all (GtkFileChooser *chooser)
 200 {
 201   gtk_file_chooser_unselect_all (get_delegate (chooser));
 202 }
 203
 204 static GSList *
 205 delegate_get_paths (GtkFileChooser *chooser)
 206 {
 207   return _gtk_file_chooser_get_paths (get_delegate (chooser));
 208 }
 209
 210 static GtkFilePath *
 211 delegate_get_preview_path (GtkFileChooser *chooser)
 212 {
 213   return _gtk_file_chooser_get_preview_path (get_delegate (chooser));
 214 }
 215
 216 static GtkFileSystem *
 217 delegate_get_file_system (GtkFileChooser *chooser)
 218 {
 219   return _gtk_file_chooser_get_file_system (get_delegate (chooser));
 220 }
 221
 222 static void
 223 delegate_add_filter (GtkFileChooser *chooser,
 224                      GtkFileFilter  *filter)
 225 {
 226   gtk_file_chooser_add_filter (get_delegate (chooser), filter);
 227 }
 228
 229 static void
 230 delegate_remove_filter (GtkFileChooser *chooser,
 231                         GtkFileFilter  *filter)
 232 {
 233   gtk_file_chooser_remove_filter (get_delegate (chooser), filter);
 234 }
 235
 236 static GSList *
 237 delegate_list_filters (GtkFileChooser *chooser)
 238 {
 239   return gtk_file_chooser_list_filters (get_delegate (chooser));
 240 }
 241
 242 static gboolean
 243 delegate_add_shortcut_folder (GtkFileChooser    *chooser,
 244                               const GtkFilePath *path,
 245                               GError           **error)
 246 {
 247   return _gtk_file_chooser_add_shortcut_folder (get_delegate (chooser), path, error);
 248 }
 249
 250 static gboolean
 251 delegate_remove_shortcut_folder (GtkFileChooser    *chooser,
 252                                  const GtkFilePath *path,
 253                                  GError           **error)
 254 {
 255   return _gtk_file_chooser_remove_shortcut_folder (get_delegate (chooser), path, error);
 256 }
 257
 258 static GSList *
 259 delegate_list_shortcut_folders (GtkFileChooser *chooser)
 260 {
 261   return gtk_file_chooser_list_shortcut_folders (get_delegate (chooser));
 262 }
 263
 264 static void
 265 delegate_set_current_folder (GtkFileChooser    *chooser,
 266                              const GtkFilePath *path)
 267 {
 268   _gtk_file_chooser_set_current_folder_path (get_delegate (chooser), path);
 269 }
 270
 271 static GtkFilePath *
 272 delegate_get_current_folder (GtkFileChooser *chooser)
 273 {
 274   return _gtk_file_chooser_get_current_folder_path (get_delegate (chooser));
 275 }
 276
 277 static void
 278 delegate_set_current_name (GtkFileChooser *chooser,
 279                            const gchar    *name)
 280 {
 281   gtk_file_chooser_set_current_name (get_delegate (chooser), name);
 282 }
 283
 284 static void
 285 delegate_notify (GObject    *object,
 286                  GParamSpec *pspec,
 287                  gpointer    data)
 288 {
 289   if (pspec->param_id >= GTK_FILE_CHOOSER_PROP_FIRST &&
 290       pspec->param_id <= GTK_FILE_CHOOSER_PROP_LAST)
 291     {
 292       g_object_notify (data, pspec->name);
 293     }
 294 }
 295
 296 static void
 297 delegate_selection_changed (GtkFileChooser *chooser,
 298                             gpointer        data)
 299 {
 300   g_signal_emit_by_name (data, "selection-changed");
 301 }
 302
 303 static void
 304 delegate_current_folder_changed (GtkFileChooser *chooser,
 305                                  gpointer        data)
 306 {
 307   g_signal_emit_by_name (data, "current-folder-changed");
 308 }
 309
 310 static void
 311 delegate_update_preview (GtkFileChooser    *chooser,
 312                          gpointer           data)
 313 {
 314   g_signal_emit_by_name (data, "update-preview");
 315 }
 316
 317 static void
 318 delegate_file_activated (GtkFileChooser    *chooser,
 319                          gpointer           data)
 320 {
 321   g_signal_emit_by_name (data, "file-activated");
 322 }