/* GTK - The GIMP Toolkit * gtkfilechooserutils.c: Private utility functions useful for * implementing a GtkFileChooser interface * Copyright (C) 2003, Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not, see <http://www.gnu.org/licenses/>. */ #include "config.h" #include "gtkfilechooserutils.h" #include "gtkfilechooser.h" #include "gtkfilesystem.h" #include "gtktypebuiltins.h" #include "gtkintl.h" static gboolean delegate_set_current_folder (GtkFileChooser *chooser, GFile *file, GError **error); static GFile * delegate_get_current_folder (GtkFileChooser *chooser); static void delegate_set_current_name (GtkFileChooser *chooser, const gchar *name); static gchar * delegate_get_current_name (GtkFileChooser *chooser); static gboolean delegate_select_file (GtkFileChooser *chooser, GFile *file, GError **error); static void delegate_unselect_file (GtkFileChooser *chooser, GFile *file); static void delegate_select_all (GtkFileChooser *chooser); static void delegate_unselect_all (GtkFileChooser *chooser); static GSList * delegate_get_files (GtkFileChooser *chooser); static GFile * delegate_get_preview_file (GtkFileChooser *chooser); static GtkFileSystem *delegate_get_file_system (GtkFileChooser *chooser); static void delegate_add_filter (GtkFileChooser *chooser, GtkFileFilter *filter); static void delegate_remove_filter (GtkFileChooser *chooser, GtkFileFilter *filter); static GSList * delegate_list_filters (GtkFileChooser *chooser); static gboolean delegate_add_shortcut_folder (GtkFileChooser *chooser, GFile *file, GError **error); static gboolean delegate_remove_shortcut_folder (GtkFileChooser *chooser, GFile *file, GError **error); static GSList * delegate_list_shortcut_folders (GtkFileChooser *chooser); static void delegate_notify (GObject *object, GParamSpec *pspec, gpointer data); static void delegate_current_folder_changed (GtkFileChooser *chooser, gpointer data); static void delegate_selection_changed (GtkFileChooser *chooser, gpointer data); static void delegate_update_preview (GtkFileChooser *chooser, gpointer data); static void delegate_file_activated (GtkFileChooser *chooser, gpointer data); static GtkFileChooserConfirmation delegate_confirm_overwrite (GtkFileChooser *chooser, gpointer data); /** * _gtk_file_chooser_install_properties: * @klass: the class structure for a type deriving from #GObject * * Installs the necessary properties for a class implementing * #GtkFileChooser. A #GtkParamSpecOverride property is installed * for each property, using the values from the #GtkFileChooserProp * enumeration. The caller must make sure itself that the enumeration * values don't collide with some other property values they * are using. **/ void _gtk_file_chooser_install_properties (GObjectClass *klass) { g_object_class_override_property (klass, GTK_FILE_CHOOSER_PROP_ACTION, "action"); g_object_class_override_property (klass, GTK_FILE_CHOOSER_PROP_EXTRA_WIDGET, "extra-widget"); g_object_class_override_property (klass, GTK_FILE_CHOOSER_PROP_FILTER, "filter"); g_object_class_override_property (klass, GTK_FILE_CHOOSER_PROP_LOCAL_ONLY, "local-only"); g_object_class_override_property (klass, GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET, "preview-widget"); g_object_class_override_property (klass, GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET_ACTIVE, "preview-widget-active"); g_object_class_override_property (klass, GTK_FILE_CHOOSER_PROP_USE_PREVIEW_LABEL, "use-preview-label"); g_object_class_override_property (klass, GTK_FILE_CHOOSER_PROP_SELECT_MULTIPLE, "select-multiple"); g_object_class_override_property (klass, GTK_FILE_CHOOSER_PROP_SHOW_HIDDEN, "show-hidden"); g_object_class_override_property (klass, GTK_FILE_CHOOSER_PROP_DO_OVERWRITE_CONFIRMATION, "do-overwrite-confirmation"); g_object_class_override_property (klass, GTK_FILE_CHOOSER_PROP_CREATE_FOLDERS, "create-folders"); } /** * _gtk_file_chooser_delegate_iface_init: * @iface: a #GtkFileChoserIface structure * * An interface-initialization function for use in cases where * an object is simply delegating the methods, signals of * the #GtkFileChooser interface to another object. * _gtk_file_chooser_set_delegate() must be called on each * instance of the object so that the delegate object can * be found. **/ void _gtk_file_chooser_delegate_iface_init (GtkFileChooserIface *iface) { iface->set_current_folder = delegate_set_current_folder; iface->get_current_folder = delegate_get_current_folder; iface->set_current_name = delegate_set_current_name; iface->get_current_name = delegate_get_current_name; iface->select_file = delegate_select_file; iface->unselect_file = delegate_unselect_file; iface->select_all = delegate_select_all; iface->unselect_all = delegate_unselect_all; iface->get_files = delegate_get_files; iface->get_preview_file = delegate_get_preview_file; iface->get_file_system = delegate_get_file_system; iface->add_filter = delegate_add_filter; iface->remove_filter = delegate_remove_filter; iface->list_filters = delegate_list_filters; iface->add_shortcut_folder = delegate_add_shortcut_folder; iface->remove_shortcut_folder = delegate_remove_shortcut_folder; iface->list_shortcut_folders = delegate_list_shortcut_folders; } /** * _gtk_file_chooser_set_delegate: * @receiver: a #GObject implementing #GtkFileChooser * @delegate: another #GObject implementing #GtkFileChooser * * Establishes that calls on @receiver for #GtkFileChooser * methods should be delegated to @delegate, and that * #GtkFileChooser signals emitted on @delegate should be * forwarded to @receiver. Must be used in conjunction with * _gtk_file_chooser_delegate_iface_init(). **/ void _gtk_file_chooser_set_delegate (GtkFileChooser *receiver, GtkFileChooser *delegate) { g_return_if_fail (GTK_IS_FILE_CHOOSER (receiver)); g_return_if_fail (GTK_IS_FILE_CHOOSER (delegate)); g_object_set_data (G_OBJECT (receiver), I_("gtk-file-chooser-delegate"), delegate); g_signal_connect (delegate, "notify", G_CALLBACK (delegate_notify), receiver); g_signal_connect (delegate, "current-folder-changed", G_CALLBACK (delegate_current_folder_changed), receiver); g_signal_connect (delegate, "selection-changed", G_CALLBACK (delegate_selection_changed), receiver); g_signal_connect (delegate, "update-preview", G_CALLBACK (delegate_update_preview), receiver); g_signal_connect (delegate, "file-activated", G_CALLBACK (delegate_file_activated), receiver); g_signal_connect (delegate, "confirm-overwrite", G_CALLBACK (delegate_confirm_overwrite), receiver); } GQuark _gtk_file_chooser_delegate_get_quark (void) { static GQuark quark = 0; if (G_UNLIKELY (quark == 0)) quark = g_quark_from_static_string ("gtk-file-chooser-delegate"); return quark; } static GtkFileChooser * get_delegate (GtkFileChooser *receiver) { return g_object_get_qdata (G_OBJECT (receiver), GTK_FILE_CHOOSER_DELEGATE_QUARK); } static gboolean delegate_select_file (GtkFileChooser *chooser, GFile *file, GError **error) { return gtk_file_chooser_select_file (get_delegate (chooser), file, error); } static void delegate_unselect_file (GtkFileChooser *chooser, GFile *file) { gtk_file_chooser_unselect_file (get_delegate (chooser), file); } static void delegate_select_all (GtkFileChooser *chooser) { gtk_file_chooser_select_all (get_delegate (chooser)); } static void delegate_unselect_all (GtkFileChooser *chooser) { gtk_file_chooser_unselect_all (get_delegate (chooser)); } static GSList * delegate_get_files (GtkFileChooser *chooser) { return gtk_file_chooser_get_files (get_delegate (chooser)); } static GFile * delegate_get_preview_file (GtkFileChooser *chooser) { return gtk_file_chooser_get_preview_file (get_delegate (chooser)); } static GtkFileSystem * delegate_get_file_system (GtkFileChooser *chooser) { return _gtk_file_chooser_get_file_system (get_delegate (chooser)); } static void delegate_add_filter (GtkFileChooser *chooser, GtkFileFilter *filter) { gtk_file_chooser_add_filter (get_delegate (chooser), filter); } static void delegate_remove_filter (GtkFileChooser *chooser, GtkFileFilter *filter) { gtk_file_chooser_remove_filter (get_delegate (chooser), filter); } static GSList * delegate_list_filters (GtkFileChooser *chooser) { return gtk_file_chooser_list_filters (get_delegate (chooser)); } static gboolean delegate_add_shortcut_folder (GtkFileChooser *chooser, GFile *file, GError **error) { return _gtk_file_chooser_add_shortcut_folder (get_delegate (chooser), file, error); } static gboolean delegate_remove_shortcut_folder (GtkFileChooser *chooser, GFile *file, GError **error) { return _gtk_file_chooser_remove_shortcut_folder (get_delegate (chooser), file, error); } static GSList * delegate_list_shortcut_folders (GtkFileChooser *chooser) { return _gtk_file_chooser_list_shortcut_folder_files (get_delegate (chooser)); } static gboolean delegate_set_current_folder (GtkFileChooser *chooser, GFile *file, GError **error) { return gtk_file_chooser_set_current_folder_file (get_delegate (chooser), file, error); } static GFile * delegate_get_current_folder (GtkFileChooser *chooser) { return gtk_file_chooser_get_current_folder_file (get_delegate (chooser)); } static void delegate_set_current_name (GtkFileChooser *chooser, const gchar *name) { gtk_file_chooser_set_current_name (get_delegate (chooser), name); } static gchar * delegate_get_current_name (GtkFileChooser *chooser) { return gtk_file_chooser_get_current_name (get_delegate (chooser)); } static void delegate_notify (GObject *object, GParamSpec *pspec, gpointer data) { gpointer iface; iface = g_type_interface_peek (g_type_class_peek (G_OBJECT_TYPE (object)), gtk_file_chooser_get_type ()); if (g_object_interface_find_property (iface, pspec->name)) g_object_notify (data, pspec->name); } static void delegate_selection_changed (GtkFileChooser *chooser, gpointer data) { g_signal_emit_by_name (data, "selection-changed"); } static void delegate_current_folder_changed (GtkFileChooser *chooser, gpointer data) { g_signal_emit_by_name (data, "current-folder-changed"); } static void delegate_update_preview (GtkFileChooser *chooser, gpointer data) { g_signal_emit_by_name (data, "update-preview"); } static void delegate_file_activated (GtkFileChooser *chooser, gpointer data) { g_signal_emit_by_name (data, "file-activated"); } static GtkFileChooserConfirmation delegate_confirm_overwrite (GtkFileChooser *chooser, gpointer data) { GtkFileChooserConfirmation conf; g_signal_emit_by_name (data, "confirm-overwrite", &conf); return conf; } static GFile * get_parent_for_uri (const char *uri) { GFile *file; GFile *parent; file = g_file_new_for_uri (uri); parent = g_file_get_parent (file); g_object_unref (file); return parent; } /* Extracts the parent folders out of the supplied list of GtkRecentInfo* items, and returns * a list of GFile* for those unique parents. */ GList * _gtk_file_chooser_extract_recent_folders (GList *infos) { GList *l; GList *result; GHashTable *folders; result = NULL; folders = g_hash_table_new (g_file_hash, (GEqualFunc) g_file_equal); for (l = infos; l; l = l->next) { GtkRecentInfo *info = l->data; const char *uri; GFile *parent; uri = gtk_recent_info_get_uri (info); parent = get_parent_for_uri (uri); if (parent) { if (!g_hash_table_lookup (folders, parent)) { g_hash_table_insert (folders, parent, (gpointer) 1); result = g_list_prepend (result, g_object_ref (parent)); } g_object_unref (parent); } } result = g_list_reverse (result); g_hash_table_destroy (folders); return result; } GSettings * _gtk_file_chooser_get_settings_for_widget (GtkWidget *widget) { static GQuark file_chooser_settings_quark = 0; GtkSettings *gtksettings; GSettings *settings; if (G_UNLIKELY (file_chooser_settings_quark == 0)) file_chooser_settings_quark = g_quark_from_static_string ("-gtk-file-chooser-settings"); gtksettings = gtk_widget_get_settings (widget); settings = g_object_get_qdata (G_OBJECT (gtksettings), file_chooser_settings_quark); if (G_UNLIKELY (settings == NULL)) { settings = g_settings_new ("org.gtk.Settings.FileChooser"); g_settings_delay (settings); g_object_set_qdata_full (G_OBJECT (gtksettings), file_chooser_settings_quark, settings, g_object_unref); } return settings; }