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.
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.
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.
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.
22 #include "gtkfilechooserutils.h"
23 #include "gtkfilechooser.h"
24 #include "gtkfilechooserenums.h"
25 #include "gtkfilesystem.h"
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,
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 GtkFileSystem *delegate_get_file_system (GtkFileChooser *chooser);
40 static void delegate_add_filter (GtkFileChooser *chooser,
41 GtkFileFilter *filter);
42 static void delegate_remove_filter (GtkFileChooser *chooser,
43 GtkFileFilter *filter);
44 static GSList * delegate_list_filters (GtkFileChooser *chooser);
45 static void delegate_notify (GObject *object,
48 static void delegate_current_folder_changed (GtkFileChooser *chooser,
50 static void delegate_selection_changed (GtkFileChooser *chooser,
54 * _gtk_file_chooser_install_properties:
55 * @klass: the class structure for a type deriving from #GObject
57 * Installs the necessary properties for a class implementing
58 * #GtkFileChooser. A #GtkParamSpecOverride property is installed
59 * for each property, using the values from the #GtkFileChooserProp
60 * enumeration. The caller must make sure itself that the enumeration
61 * values don't collide with some other property values they
65 _gtk_file_chooser_install_properties (GObjectClass *klass)
67 g_object_class_install_property (klass,
68 GTK_FILE_CHOOSER_PROP_ACTION,
69 g_param_spec_override ("action",
70 GTK_TYPE_FILE_CHOOSER_ACTION,
72 g_object_class_install_property (klass,
73 GTK_FILE_CHOOSER_PROP_FILE_SYSTEM,
74 g_param_spec_override ("file-system",
76 G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
77 g_object_class_install_property (klass,
78 GTK_FILE_CHOOSER_PROP_FILTER,
79 g_param_spec_override ("filter",
82 g_object_class_install_property (klass,
83 GTK_FILE_CHOOSER_PROP_FOLDER_MODE,
84 g_param_spec_override ("folder-mode",
87 g_object_class_install_property (klass,
88 GTK_FILE_CHOOSER_PROP_LOCAL_ONLY,
89 g_param_spec_override ("local-only",
92 g_object_class_install_property (klass,
93 GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET,
94 g_param_spec_override ("preview-widget",
97 g_object_class_install_property (klass,
98 GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET_ACTIVE,
99 g_param_spec_override ("preview-widget-active",
102 g_object_class_install_property (klass,
103 GTK_FILE_CHOOSER_PROP_SELECT_MULTIPLE,
104 g_param_spec_override ("select-multiple",
107 g_object_class_install_property (klass,
108 GTK_FILE_CHOOSER_PROP_SHOW_HIDDEN,
109 g_param_spec_override ("show-hidden",
115 * _gtk_file_chooser_delegate_iface_init:
116 * @iface: a #GtkFileChoserIface structure
118 * An interface-initialization function for use in cases where
119 * an object is simply delegating the methods, signals of
120 * the #GtkFileChooser interface to another object.
121 * _gtk_file_chooser_set_delegate() must be called on each
122 * instance of the object so that the delegate object can
126 _gtk_file_chooser_delegate_iface_init (GtkFileChooserIface *iface)
128 iface->set_current_folder = delegate_set_current_folder;
129 iface->get_current_folder = delegate_get_current_folder;
130 iface->set_current_name = delegate_set_current_name;
131 iface->select_path = delegate_select_path;
132 iface->unselect_path = delegate_unselect_path;
133 iface->select_all = delegate_select_all;
134 iface->unselect_all = delegate_unselect_all;
135 iface->get_paths = delegate_get_paths;
136 iface->get_file_system = delegate_get_file_system;
137 iface->add_filter = delegate_add_filter;
138 iface->remove_filter = delegate_remove_filter;
139 iface->list_filters = delegate_list_filters;
143 * _gtk_file_chooser_set_delegate:
144 * @receiver: a GOobject implementing #GtkFileChooser
145 * @delegate: another GObject implementing #GtkFileChooser
147 * Establishes that calls on @receiver for #GtkFileChooser
148 * methods should be delegated to @delegate, and that
149 * #GtkFileChooser signals emitted on @delegate should be
150 * forwarded to @receiver. Must be used in confunction with
151 * _gtk_file_chooser_delegate_iface_init().
154 _gtk_file_chooser_set_delegate (GtkFileChooser *receiver,
155 GtkFileChooser *delegate)
157 g_return_if_fail (GTK_IS_FILE_CHOOSER (receiver));
158 g_return_if_fail (GTK_IS_FILE_CHOOSER (delegate));
160 g_object_set_data (G_OBJECT (receiver), "gtk-file-chooser-delegate", delegate);
162 g_signal_connect (delegate, "notify",
163 G_CALLBACK (delegate_notify), receiver);
164 g_signal_connect (delegate, "current-folder-changed",
165 G_CALLBACK (delegate_current_folder_changed), receiver);
166 g_signal_connect (delegate, "selection-changed",
167 G_CALLBACK (delegate_selection_changed), receiver);
170 static GtkFileChooser *
171 get_delegate (GtkFileChooser *receiver)
173 return g_object_get_data (G_OBJECT (receiver), "gtk-file-chooser-delegate");
177 delegate_select_path (GtkFileChooser *chooser,
178 const GtkFilePath *path)
180 _gtk_file_chooser_select_path (get_delegate (chooser), path);
184 delegate_unselect_path (GtkFileChooser *chooser,
185 const GtkFilePath *path)
187 _gtk_file_chooser_unselect_path (get_delegate (chooser), path);
191 delegate_select_all (GtkFileChooser *chooser)
193 gtk_file_chooser_select_all (get_delegate (chooser));
197 delegate_unselect_all (GtkFileChooser *chooser)
199 gtk_file_chooser_unselect_all (get_delegate (chooser));
203 delegate_get_paths (GtkFileChooser *chooser)
205 return _gtk_file_chooser_get_paths (get_delegate (chooser));
208 static GtkFileSystem *
209 delegate_get_file_system (GtkFileChooser *chooser)
211 return _gtk_file_chooser_get_file_system (get_delegate (chooser));
215 delegate_add_filter (GtkFileChooser *chooser,
216 GtkFileFilter *filter)
218 gtk_file_chooser_add_filter (get_delegate (chooser), filter);
222 delegate_remove_filter (GtkFileChooser *chooser,
223 GtkFileFilter *filter)
225 gtk_file_chooser_remove_filter (get_delegate (chooser), filter);
229 delegate_list_filters (GtkFileChooser *chooser)
231 return gtk_file_chooser_list_filters (get_delegate (chooser));
235 delegate_set_current_folder (GtkFileChooser *chooser,
236 const GtkFilePath *path)
238 _gtk_file_chooser_set_current_folder_path (chooser, path);
242 delegate_get_current_folder (GtkFileChooser *chooser)
244 return _gtk_file_chooser_get_current_folder_path (get_delegate (chooser));
248 delegate_set_current_name (GtkFileChooser *chooser,
251 gtk_file_chooser_set_current_name (get_delegate (chooser), name);
255 delegate_notify (GObject *object,
259 if (pspec->param_id >= GTK_FILE_CHOOSER_PROP_FIRST &&
260 pspec->param_id <= GTK_FILE_CHOOSER_PROP_LAST)
262 g_object_notify (data, pspec->name);
267 delegate_selection_changed (GtkFileChooser *chooser,
270 g_signal_emit_by_name (data, "selection-changed", 0);
274 delegate_current_folder_changed (GtkFileChooser *chooser,
277 g_signal_emit_by_name (data, "current-folder-changed", 0);