gtk2/gtk/gtkfilechooser.c
2021-03-11 16:37:33 +00:00

810 lines
27 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* GTK - The GIMP Toolkit
* gtkfilechooser.c: Abstract interface for file selector GUIs
* 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 "gtkfilechooser.h"
#include "gtkfilechooserprivate.h"
#include "gtkintl.h"
#include "gtktypebuiltins.h"
#include "gtkprivate.h"
#include "gtkmarshalers.h"
/**
* GtkFileChooser:
*
* `GtkFileChooser` is an interface that can be implemented by file
* selection widgets.
*
* In GTK, the main objects that implement this interface are
* [class@Gtk.FileChooserWidget] and [class@Gtk.FileChooserDialog].
*
* You do not need to write an object that implements the `GtkFileChooser`
* interface unless you are trying to adapt an existing file selector to
* expose a standard programming interface.
*
* `GtkFileChooser` allows for shortcuts to various places in the filesystem.
* In the default implementation these are displayed in the left pane. It
* may be a bit confusing at first that these shortcuts come from various
* sources and in various flavours, so lets explain the terminology here:
*
* - Bookmarks: are created by the user, by dragging folders from the
* right pane to the left pane, or by using the “Add”. Bookmarks
* can be renamed and deleted by the user.
*
* - Shortcuts: can be provided by the application. For example, a Paint
* program may want to add a shortcut for a Clipart folder. Shortcuts
* cannot be modified by the user.
*
* - Volumes: are provided by the underlying filesystem abstraction. They are
* the “roots” of the filesystem.
*
* # File Names and Encodings
*
* When the user is finished selecting files in a `GtkFileChooser`, your
* program can get the selected filenames as `GFile`s.
*
* # Adding options
*
* You can add extra widgets to a file chooser to provide options
* that are not present in the default design, by using
* [method@Gtk.FileChooser.add_choice]. Each choice has an identifier and
* a user visible label; additionally, each choice can have multiple
* options. If a choice has no option, it will be rendered as a
* check button with the given label; if a choice has options, it will
* be rendered as a combo box.
*/
typedef GtkFileChooserIface GtkFileChooserInterface;
G_DEFINE_INTERFACE (GtkFileChooser, gtk_file_chooser, G_TYPE_OBJECT);
static void
gtk_file_chooser_default_init (GtkFileChooserInterface *iface)
{
/**
* GtkFileChooser:action: (attributes org.gtk.Property.get=gtk_file_chooser_get_action org.gtk.Property.set=gtk_file_chooser_set_action)
*
* The type of operation that the file chooser is performing.
*/
g_object_interface_install_property (iface,
g_param_spec_enum ("action",
P_("Action"),
P_("The type of operation that the file selector is performing"),
GTK_TYPE_FILE_CHOOSER_ACTION,
GTK_FILE_CHOOSER_ACTION_OPEN,
GTK_PARAM_READWRITE));
/**
* GtkFileChooser:filter: (attributes org.gtk.Property.get=gtk_file_chooser_get_filter org.gtk.Property.set=gtk_file_chooser_set_filter)
*
* The current filter for selecting files that are displayed.
*/
g_object_interface_install_property (iface,
g_param_spec_object ("filter",
P_("Filter"),
P_("The current filter for selecting which files are displayed"),
GTK_TYPE_FILE_FILTER,
GTK_PARAM_READWRITE));
/**
* GtkFileChooser:select-multiple: (attributes org.gtk.Property.get=gtk_file_chooser_get_select_multiple org.gtk.Property.set=gtk_file_chooser_set_select_multiple)
*
* Whether to allow multiple files to be selected.
*/
g_object_interface_install_property (iface,
g_param_spec_boolean ("select-multiple",
P_("Select Multiple"),
P_("Whether to allow multiple files to be selected"),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkFileChooser:filters: (attributes org.gtk.Property.get=gtk_file_chooser_get_filters)
*
* A `GListModel` containing the filters that have been
* added with gtk_file_chooser_add_filter().
*
* The returned object should not be modified. It may
* or may not be updated for later changes.
*/
g_object_interface_install_property (iface,
g_param_spec_object ("filters",
P_("Filters"),
P_("List model of filters"),
G_TYPE_LIST_MODEL,
GTK_PARAM_READABLE));
/**
* GtkFileChooser:shortcut-folders: (attributes org.gtk.Property.get=gtk_file_chooser_get_shortcut_folders)
*
* A `GListModel` containing the shortcut folders that have been
* added with gtk_file_chooser_add_shortcut_folder().
*
* The returned object should not be modified. It may
* or may not be updated for later changes.
*/
g_object_interface_install_property (iface,
g_param_spec_object ("shortcut-folders",
P_("Shortcut Folders"),
P_("List model of shortcut folders"),
G_TYPE_LIST_MODEL,
GTK_PARAM_READABLE));
/**
* GtkFileChooser:create-folders: (attributes org.gtk.Property.get=gtk_file_chooser_get_create_folders org.gtk.Property.set=gtk_file_chooser_set_create_folders)
*
* Whether a file chooser not in %GTK_FILE_CHOOSER_ACTION_OPEN mode
* will offer the user to create new folders.
*/
g_object_interface_install_property (iface,
g_param_spec_boolean ("create-folders",
P_("Allow folder creation"),
P_("Whether a file chooser not in open mode "
"will offer the user to create new folders."),
TRUE,
GTK_PARAM_READWRITE));
}
/**
* gtk_file_chooser_error_quark:
*
* Registers an error quark for `GtkFileChooser` errors.
*
* Returns: The error quark used for `GtkFileChooser` errors.
**/
GQuark
gtk_file_chooser_error_quark (void)
{
return g_quark_from_static_string ("gtk-file-chooser-error-quark");
}
/**
* gtk_file_chooser_set_action: (attributes org.gtk.Method.set_property=action)
* @chooser: a `GtkFileChooser`
* @action: the action that the file selector is performing
*
* Sets the type of operation that the chooser is performing.
*
* The user interface is adapted to suit the selected action.
*
* For example, an option to create a new folder might be shown
* if the action is %GTK_FILE_CHOOSER_ACTION_SAVE but not if the
* action is %GTK_FILE_CHOOSER_ACTION_OPEN.
**/
void
gtk_file_chooser_set_action (GtkFileChooser *chooser,
GtkFileChooserAction action)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_object_set (chooser, "action", action, NULL);
}
/**
* gtk_file_chooser_get_action: (attributes org.gtk.Method.get_property=action)
* @chooser: a `GtkFileChooser`
*
* Gets the type of operation that the file chooser is performing.
*
* Returns: the action that the file selector is performing
*/
GtkFileChooserAction
gtk_file_chooser_get_action (GtkFileChooser *chooser)
{
GtkFileChooserAction action;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_object_get (chooser, "action", &action, NULL);
return action;
}
/**
* gtk_file_chooser_set_select_multiple: (attributes org.gtk.Method.set_property=select-multiple)
* @chooser: a `GtkFileChooser`
* @select_multiple: %TRUE if multiple files can be selected.
*
* Sets whether multiple files can be selected in the file chooser.
*
* This is only relevant if the action is set to be
* %GTK_FILE_CHOOSER_ACTION_OPEN or
* %GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER.
*/
void
gtk_file_chooser_set_select_multiple (GtkFileChooser *chooser,
gboolean select_multiple)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_object_set (chooser, "select-multiple", select_multiple, NULL);
}
/**
* gtk_file_chooser_get_select_multiple: (attributes org.gtk.Method.get_property=select-multiple)
* @chooser: a `GtkFileChooser`
*
* Gets whether multiple files can be selected in the file
* chooser.
*
* Returns: %TRUE if multiple files can be selected.
*/
gboolean
gtk_file_chooser_get_select_multiple (GtkFileChooser *chooser)
{
gboolean select_multiple;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_object_get (chooser, "select-multiple", &select_multiple, NULL);
return select_multiple;
}
/**
* gtk_file_chooser_set_create_folders: (attributes org.gtk.Method.set_property=create-folders)
* @chooser: a `GtkFileChooser`
* @create_folders: %TRUE if the Create Folder button should be displayed
*
* Sets whether file chooser will offer to create new folders.
*
* This is only relevant if the action is not set to be
* %GTK_FILE_CHOOSER_ACTION_OPEN.
*/
void
gtk_file_chooser_set_create_folders (GtkFileChooser *chooser,
gboolean create_folders)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_object_set (chooser, "create-folders", create_folders, NULL);
}
/**
* gtk_file_chooser_get_create_folders: (attributes org.gtk.Method.get_property=create-folders)
* @chooser: a `GtkFileChooser`
*
* Gets whether file chooser will offer to create new folders.
*
* Returns: %TRUE if the Create Folder button should be displayed.
*/
gboolean
gtk_file_chooser_get_create_folders (GtkFileChooser *chooser)
{
gboolean create_folders;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_object_get (chooser, "create-folders", &create_folders, NULL);
return create_folders;
}
/**
* gtk_file_chooser_set_current_name:
* @chooser: a `GtkFileChooser`
* @name: (type utf8): the filename to use, as a UTF-8 string
*
* Sets the current name in the file selector, as if entered
* by the user.
*
* Note that the name passed in here is a UTF-8 string rather
* than a filename. This function is meant for such uses as a
* suggested name in a “Save As...” dialog. You can pass
* “Untitled.doc” or a similarly suitable suggestion for the @name.
*
* If you want to preselect a particular existing file, you should
* use [method@Gtk.FileChooser.set_file] instead.
*
* Please see the documentation for those functions for an example
* of using [method@Gtk.FileChooser.set_current_name] as well.
**/
void
gtk_file_chooser_set_current_name (GtkFileChooser *chooser,
const char *name)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_return_if_fail (name != NULL);
GTK_FILE_CHOOSER_GET_IFACE (chooser)->set_current_name (chooser, name);
}
/**
* gtk_file_chooser_get_current_name:
* @chooser: a `GtkFileChooser`
*
* Gets the current name in the file selector, as entered by the user.
*
* This is meant to be used in save dialogs, to get the currently typed
* filename when the file itself does not exist yet.
*
* Returns: The raw text from the file choosers “Name” entry. Free with
* g_free(). Note that this string is not a full pathname or URI; it is
* whatever the contents of the entry are. Note also that this string is
* in UTF-8 encoding, which is not necessarily the systems encoding for
* filenames.
*/
char *
gtk_file_chooser_get_current_name (GtkFileChooser *chooser)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->get_current_name (chooser);
}
void
gtk_file_chooser_select_all (GtkFileChooser *chooser)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
GTK_FILE_CHOOSER_GET_IFACE (chooser)->select_all (chooser);
}
void
gtk_file_chooser_unselect_all (GtkFileChooser *chooser)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
GTK_FILE_CHOOSER_GET_IFACE (chooser)->unselect_all (chooser);
}
/**
* gtk_file_chooser_set_current_folder:
* @chooser: a `GtkFileChooser`
* @file: the `GFile` for the new folder
* @error: location to store error, or %NULL.
*
* Sets the current folder for @chooser from a #GFile.
*
* Returns: %TRUE if the folder could be changed successfully, %FALSE
* otherwise.
*/
gboolean
gtk_file_chooser_set_current_folder (GtkFileChooser *chooser,
GFile *file,
GError **error)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_return_val_if_fail (G_IS_FILE (file), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->set_current_folder (chooser, file, error);
}
/**
* gtk_file_chooser_get_current_folder:
* @chooser: a `GtkFileChooser`
*
* Gets the current folder of @chooser as #GFile.
*
* Returns: (transfer full): the `GFile` for the current folder.
*/
GFile *
gtk_file_chooser_get_current_folder (GtkFileChooser *chooser)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->get_current_folder (chooser);
}
gboolean
gtk_file_chooser_select_file (GtkFileChooser *chooser,
GFile *file,
GError **error)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_return_val_if_fail (G_IS_FILE (file), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->select_file (chooser, file, error);
}
void
gtk_file_chooser_unselect_file (GtkFileChooser *chooser,
GFile *file)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_return_if_fail (G_IS_FILE (file));
GTK_FILE_CHOOSER_GET_IFACE (chooser)->unselect_file (chooser, file);
}
/**
* gtk_file_chooser_get_files:
* @chooser: a `GtkFileChooser`
*
* Lists all the selected files and subfolders in the current folder
* of @chooser as #GFile.
*
* Returns: (transfer full): a list model containing a `GFile` for each
* selected file and subfolder in the current folder. Free the returned
* list with g_object_unref().
*/
GListModel *
gtk_file_chooser_get_files (GtkFileChooser *chooser)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->get_files (chooser);
}
/**
* gtk_file_chooser_set_file:
* @chooser: a `GtkFileChooser`
* @file: the `GFile` to set as current
* @error: (allow-none): location to store the error, or %NULL to ignore errors.
*
* Sets @file as the current filename for the file chooser.
*
* This includes changing to the files parent folder and actually selecting
* the file in list. If the @chooser is in %GTK_FILE_CHOOSER_ACTION_SAVE mode,
* the files base name will also appear in the dialogs file name entry.
*
* If the file name isnt in the current folder of @chooser, then the current
* folder of @chooser will be changed to the folder containing @filename.
*
* Note that the file must exist, or nothing will be done except
* for the directory change.
*
* If you are implementing a save dialog, you should use this function if
* you already have a file name to which the user may save; for example,
* when the user opens an existing file and then does “Save As…”. If you
* dont have a file name already — for example, if the user just created
* a new file and is saving it for the first time, do not call this function.
*
* Instead, use something similar to this:
*
* ```c
* static void
* prepare_file_chooser (GtkFileChooser *chooser,
* GFile *existing_file)
* {
* gboolean document_is_new = (existing_file == NULL);
*
* if (document_is_new)
* {
* GFile *default_file_for_saving = g_file_new_for_path ("./out.txt");
* // the user just created a new document
* gtk_file_chooser_set_current_folder (chooser, default_file_for_saving, NULL);
* gtk_file_chooser_set_current_name (chooser, "Untitled document");
* g_object_unref (default_file_for_saving);
* }
* else
* {
* // the user edited an existing document
* gtk_file_chooser_set_file (chooser, existing_file, NULL);
* }
* }
* ```
*
* Returns: Not useful
*/
gboolean
gtk_file_chooser_set_file (GtkFileChooser *chooser,
GFile *file,
GError **error)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_return_val_if_fail (G_IS_FILE (file), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
gtk_file_chooser_unselect_all (chooser);
return gtk_file_chooser_select_file (chooser, file, error);
}
/**
* gtk_file_chooser_get_file:
* @chooser: a `GtkFileChooser`
*
* Gets the `GFile` for the currently selected file in
* the file selector.
*
* If multiple files are selected, one of the files will be
* returned at random.
*
* If the file chooser is in folder mode, this function returns
* the selected folder.
*
* Returns: (transfer full): a selected `GFile`. You own the
* returned file; use g_object_unref() to release it.
*/
GFile *
gtk_file_chooser_get_file (GtkFileChooser *chooser)
{
GListModel *list;
GFile *result = NULL;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
list = gtk_file_chooser_get_files (chooser);
if (g_list_model_get_n_items (list) > 0)
result = g_list_model_get_item (list, 0);
g_object_unref (list);
return result;
}
/**
* gtk_file_chooser_add_shortcut_folder:
* @chooser: a `GtkFileChooser`
* @folder: a `GFile` for the folder to add
* @error: location to store error, or %NULL
*
* Adds a folder to be displayed with the shortcut folders
* in a file chooser.
*
* Returns: %TRUE if the folder could be added successfully,
* %FALSE otherwise.
*/
gboolean
gtk_file_chooser_add_shortcut_folder (GtkFileChooser *chooser,
GFile *folder,
GError **error)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_return_val_if_fail (G_IS_FILE (folder), FALSE);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->add_shortcut_folder (chooser, folder, error);
}
/**
* gtk_file_chooser_remove_shortcut_folder:
* @chooser: a `GtkFileChooser`
* @folder: a `GFile` for the folder to remove
* @error: location to store error, or %NULL
*
* Removes a folder from the shortcut folders in a file chooser.
*
* Returns: %TRUE if the folder could be removed successfully,
* %FALSE otherwise.
*/
gboolean
gtk_file_chooser_remove_shortcut_folder (GtkFileChooser *chooser,
GFile *folder,
GError **error)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_return_val_if_fail (G_IS_FILE (folder), FALSE);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->remove_shortcut_folder (chooser, folder, error);
}
/**
* gtk_file_chooser_add_filter:
* @chooser: a `GtkFileChooser`
* @filter: (transfer none): a `GtkFileFilter`
*
* Adds @filter to the list of filters that the user can select between.
*
* When a filter is selected, only files that are passed by that
* filter are displayed.
*
* Note that the @chooser takes ownership of the filter if it is floating,
* so you have to ref and sink it if you want to keep a reference.
*/
void
gtk_file_chooser_add_filter (GtkFileChooser *chooser,
GtkFileFilter *filter)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
GTK_FILE_CHOOSER_GET_IFACE (chooser)->add_filter (chooser, filter);
}
/**
* gtk_file_chooser_remove_filter:
* @chooser: a `GtkFileChooser`
* @filter: a `GtkFileFilter`
*
* Removes @filter from the list of filters that the user can select between.
*/
void
gtk_file_chooser_remove_filter (GtkFileChooser *chooser,
GtkFileFilter *filter)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
GTK_FILE_CHOOSER_GET_IFACE (chooser)->remove_filter (chooser, filter);
}
/**
* gtk_file_chooser_get_filters: (attributes org.gtk.Method.get_property=filters)
* @chooser: a `GtkFileChooser`
*
* Gets the current set of user-selectable filters, as a list model.
*
* See [method@Gtk.FileChooser.add_filter] and
* [method@Gtk.FileChooser.remove_filter] for changing individual filters.
*
* You should not modify the returned list model. Future changes to
* @chooser may or may not affect the returned model.
*
* Returns: (transfer full): a `GListModel` containing the current set
* of user-selectable filters.
*/
GListModel *
gtk_file_chooser_get_filters (GtkFileChooser *chooser)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->get_filters (chooser);
}
/**
* gtk_file_chooser_set_filter: (attributes org.gtk.Method.set_property=filter)
* @chooser: a `GtkFileChooser`
* @filter: a `GtkFileFilter`
*
* Sets the current filter.
*
* Only the files that pass the filter will be displayed.
* If the user-selectable list of filters is non-empty, then
* the filter should be one of the filters in that list.
*
* Setting the current filter when the list of filters is
* empty is useful if you want to restrict the displayed
* set of files without letting the user change it.
*/
void
gtk_file_chooser_set_filter (GtkFileChooser *chooser,
GtkFileFilter *filter)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_return_if_fail (GTK_IS_FILE_FILTER (filter));
g_object_set (chooser, "filter", filter, NULL);
}
/**
* gtk_file_chooser_get_filter: (attributes org.gtk.Method.get_property=filter)
* @chooser: a `GtkFileChooser`
*
* Gets the current filter.
*
* Returns: (nullable) (transfer none): the current filter, or %NULL
*/
GtkFileFilter *
gtk_file_chooser_get_filter (GtkFileChooser *chooser)
{
GtkFileFilter *filter;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
g_object_get (chooser, "filter", &filter, NULL);
/* Horrid hack; g_object_get() refs returned objects but
* that contradicts the memory management conventions
* for accessors.
*/
if (filter)
g_object_unref (filter);
return filter;
}
/**
* gtk_file_chooser_get_shortcut_folders: (attributes org.gtk.Method.get_property=shortcut-folders)
* @chooser: a `GtkFileChooser`
*
* Queries the list of shortcut folders in the file chooser.
*
* You should not modify the returned list model. Future changes to
* @chooser may or may not affect the returned model.
*
* Returns: (transfer full): A list model of `GFile`s
*/
GListModel *
gtk_file_chooser_get_shortcut_folders (GtkFileChooser *chooser)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->get_shortcut_folders (chooser);
}
/**
* gtk_file_chooser_add_choice:
* @chooser: a `GtkFileChooser`
* @id: id for the added choice
* @label: user-visible label for the added choice
* @options: (nullable) (array zero-terminated=1): ids for the options of the choice, or %NULL for a boolean choice
* @option_labels: (nullable) (array zero-terminated=1): user-visible labels for the options, must be the same length as @options
*
* Adds a 'choice' to the file chooser.
*
* This is typically implemented as a combobox or, for boolean choices,
* as a checkbutton. You can select a value using
* [method@Gtk.FileChooser.set_choice] before the dialog is shown,
* and you can obtain the user-selected value in the
* [signal@Gtk.Dialog::response] signal handler using
* [method@Gtk.FileChooser.get_choice].
*/
void
gtk_file_chooser_add_choice (GtkFileChooser *chooser,
const char *id,
const char *label,
const char **options,
const char **option_labels)
{
GtkFileChooserIface *iface = GTK_FILE_CHOOSER_GET_IFACE (chooser);
if (iface->add_choice)
iface->add_choice (chooser, id, label, options, option_labels);
}
/**
* gtk_file_chooser_remove_choice:
* @chooser: a `GtkFileChooser`
* @id: the ID of the choice to remove
*
* Removes a 'choice' that has been added with gtk_file_chooser_add_choice().
*/
void
gtk_file_chooser_remove_choice (GtkFileChooser *chooser,
const char *id)
{
GtkFileChooserIface *iface = GTK_FILE_CHOOSER_GET_IFACE (chooser);
if (iface->remove_choice)
iface->remove_choice (chooser, id);
}
/**
* gtk_file_chooser_set_choice:
* @chooser: a `GtkFileChooser`
* @id: the ID of the choice to set
* @option: the ID of the option to select
*
* Selects an option in a 'choice' that has been added with
* gtk_file_chooser_add_choice().
*
* For a boolean choice, the possible options are "true" and "false".
*/
void
gtk_file_chooser_set_choice (GtkFileChooser *chooser,
const char *id,
const char *option)
{
GtkFileChooserIface *iface = GTK_FILE_CHOOSER_GET_IFACE (chooser);
if (iface->set_choice)
iface->set_choice (chooser, id, option);
}
/**
* gtk_file_chooser_get_choice:
* @chooser: a `GtkFileChooser`
* @id: the ID of the choice to get
*
* Gets the currently selected option in the 'choice' with the given ID.
*
* Returns: the ID of the currently selected option
*/
const char *
gtk_file_chooser_get_choice (GtkFileChooser *chooser,
const char *id)
{
GtkFileChooserIface *iface = GTK_FILE_CHOOSER_GET_IFACE (chooser);
if (iface->get_choice)
return iface->get_choice (chooser, id);
return NULL;
}