AuroraMiddleware/gtk2
1
0
Fork 0
forked from AuroraMiddleware/gtk
Code Issues Pull Requests Projects Releases Wiki Activity
2d9c09d6c0
gtk2/gtk/gtkfilechooser.c
Matthias Clasen 09d1b28249 docs: Convert to markdown 
Specifically, switch to using markdown syntax for sections.
2014-02-02 00:30:27 -05:00

2269 lines
68 KiB
C
Raw Blame History

/* 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"
/**
* SECTION:gtkfilechooser
* @Short_description: File chooser interface used by GtkFileChooserWidget and GtkFileChooserDialog
* @Title: GtkFileChooser
* @See_also: #GtkFileChooserDialog, #GtkFileChooserWidget, #GtkFileChooserButton
*
* #GtkFileChooser is an interface that can be implemented by file
* selection widgets. In GTK+, the main objects that implement this
* interface are #GtkFileChooserWidget, #GtkFileChooserDialog, and
* #GtkFileChooserButton. 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 names
* either as filenames or as URIs. For URIs, the normal escaping
* rules are applied if the URI contains non-ASCII characters.
* However, filenames are always returned in
* the character set specified by the
* <envar>G_FILENAME_ENCODING</envar> environment variable.
* Please see the GLib documentation for more details about this
* variable.
*
* This means that while you can pass the result of
* gtk_file_chooser_get_filename() to open() or fopen(),
* you may not be able to directly set it as the text of a
* #GtkLabel widget unless you convert it first to UTF-8,
* which all GTK+ widgets expect. You should use g_filename_to_utf8()
* to convert filenames into strings that can be passed to GTK+
* widgets.
*
* ## Adding a Preview Widget
*
* You can add a custom preview widget to a file chooser and then
* get notification about when the preview needs to be updated.
* To install a preview widget, use
* gtk_file_chooser_set_preview_widget(). Then, connect to the
* #GtkFileChooser::update-preview signal to get notified when
* you need to update the contents of the preview.
*
* Your callback should use
* gtk_file_chooser_get_preview_filename() to see what needs
* previewing. Once you have generated the preview for the
* corresponding file, you must call
* gtk_file_chooser_set_preview_widget_active() with a boolean
* flag that indicates whether your callback could successfully
* generate a preview.
*
* <para id="gtkfilechooser-preview">An example for using a preview widget:</para>
* |[<!-- language="C" -->
* {
* GtkImage *preview;
*
* ...
*
* preview = gtk_image_new (<!-- -->);
*
* gtk_file_chooser_set_preview_widget (my_file_chooser, preview);
* g_signal_connect (my_file_chooser, "update-preview",
* G_CALLBACK (update_preview_cb), preview);
* }
*
* static void
* update_preview_cb (GtkFileChooser *file_chooser, gpointer data)
* {
* GtkWidget *preview;
* char *filename;
* GdkPixbuf *pixbuf;
* gboolean have_preview;
*
* preview = GTK_WIDGET (data);
* filename = gtk_file_chooser_get_preview_filename (file_chooser);
*
* pixbuf = gdk_pixbuf_new_from_file_at_size (filename, 128, 128, NULL);
* have_preview = (pixbuf != NULL);
* g_free (filename);
*
* gtk_image_set_from_pixbuf (GTK_IMAGE (preview), pixbuf);
* if (pixbuf)
* g_object_unref (pixbuf);
*
* gtk_file_chooser_set_preview_widget_active (file_chooser, have_preview);
* }
* ]|
*
* ## Adding Extra Widgets
*
* You can add extra widgets to a file chooser to provide options
* that are not present in the default design. For example, you
* can add a toggle button to give the user the option to open a
* file in read-only mode. You can use
* gtk_file_chooser_set_extra_widget() to insert additional
* widgets in a file chooser.
*
* An example for adding extra widgets:
* |[<!-- language="C" -->
*
* GtkWidget *toggle;
*
* ...
*
* toggle = gtk_check_button_new_with_label ("Open file read-only");
* gtk_widget_show (toggle);
* gtk_file_chooser_set_extra_widget (my_file_chooser, toggle);
* }
* ]|
*
* If you want to set more than one extra widget in the file
* chooser, you can a container such as a #GtkBox or a #GtkGrid
* and include your widgets in it. Then, set the container as
* the whole extra widget.
*/
typedef GtkFileChooserIface GtkFileChooserInterface;
G_DEFINE_INTERFACE (GtkFileChooser, gtk_file_chooser, GTK_TYPE_WIDGET);
static gboolean
confirm_overwrite_accumulator (GSignalInvocationHint *ihint,
GValue *return_accu,
const GValue *handler_return,
gpointer dummy)
{
gboolean continue_emission;
GtkFileChooserConfirmation conf;
conf = g_value_get_enum (handler_return);
g_value_set_enum (return_accu, conf);
continue_emission = (conf == GTK_FILE_CHOOSER_CONFIRMATION_CONFIRM);
return continue_emission;
}
static void
gtk_file_chooser_default_init (GtkFileChooserInterface *iface)
{
GType iface_type = G_TYPE_FROM_INTERFACE (iface);
/**
* GtkFileChooser::current-folder-changed:
* @chooser: the object which received the signal.
*
* This signal is emitted when the current folder in a #GtkFileChooser
* changes. This can happen due to the user performing some action that
* changes folders, such as selecting a bookmark or visiting a folder on the
* file list. It can also happen as a result of calling a function to
* explicitly change the current folder in a file chooser.
*
* Normally you do not need to connect to this signal, unless you need to keep
* track of which folder a file chooser is showing.
*
* See also: gtk_file_chooser_set_current_folder(),
* gtk_file_chooser_get_current_folder(),
* gtk_file_chooser_set_current_folder_uri(),
* gtk_file_chooser_get_current_folder_uri().
*/
g_signal_new (I_("current-folder-changed"),
iface_type,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkFileChooserIface, current_folder_changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkFileChooser::selection-changed:
* @chooser: the object which received the signal.
*
* This signal is emitted when there is a change in the set of selected files
* in a #GtkFileChooser. This can happen when the user modifies the selection
* with the mouse or the keyboard, or when explicitly calling functions to
* change the selection.
*
* Normally you do not need to connect to this signal, as it is easier to wait
* for the file chooser to finish running, and then to get the list of
* selected files using the functions mentioned below.
*
* See also: gtk_file_chooser_select_filename(),
* gtk_file_chooser_unselect_filename(), gtk_file_chooser_get_filename(),
* gtk_file_chooser_get_filenames(), gtk_file_chooser_select_uri(),
* gtk_file_chooser_unselect_uri(), gtk_file_chooser_get_uri(),
* gtk_file_chooser_get_uris().
*/
g_signal_new (I_("selection-changed"),
iface_type,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkFileChooserIface, selection_changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkFileChooser::update-preview:
* @chooser: the object which received the signal.
*
* This signal is emitted when the preview in a file chooser should be
* regenerated. For example, this can happen when the currently selected file
* changes. You should use this signal if you want your file chooser to have
* a preview widget.
*
* Once you have installed a preview widget with
* gtk_file_chooser_set_preview_widget(), you should update it when this
* signal is emitted. You can use the functions
* gtk_file_chooser_get_preview_filename() or
* gtk_file_chooser_get_preview_uri() to get the name of the file to preview.
* Your widget may not be able to preview all kinds of files; your callback
* must call gtk_file_chooser_set_preview_widget_active() to inform the file
* chooser about whether the preview was generated successfully or not.
*
* Please see the example code in <xref linkend="gtkfilechooser-preview"/>.
*
* See also: gtk_file_chooser_set_preview_widget(),
* gtk_file_chooser_set_preview_widget_active(),
* gtk_file_chooser_set_use_preview_label(),
* gtk_file_chooser_get_preview_filename(),
* gtk_file_chooser_get_preview_uri().
*/
g_signal_new (I_("update-preview"),
iface_type,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkFileChooserIface, update_preview),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkFileChooser::file-activated:
* @chooser: the object which received the signal.
*
* This signal is emitted when the user "activates" a file in the file
* chooser. This can happen by double-clicking on a file in the file list, or
* by pressing <keycap>Enter</keycap>.
*
* Normally you do not need to connect to this signal. It is used internally
* by #GtkFileChooserDialog to know when to activate the default button in the
* dialog.
*
* See also: gtk_file_chooser_get_filename(),
* gtk_file_chooser_get_filenames(), gtk_file_chooser_get_uri(),
* gtk_file_chooser_get_uris().
*/
g_signal_new (I_("file-activated"),
iface_type,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkFileChooserIface, file_activated),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkFileChooser::confirm-overwrite:
* @chooser: the object which received the signal.
*
* This signal gets emitted whenever it is appropriate to present a
* confirmation dialog when the user has selected a file name that
* already exists. The signal only gets emitted when the file
* chooser is in %GTK_FILE_CHOOSER_ACTION_SAVE mode.
*
* Most applications just need to turn on the
* #GtkFileChooser:do-overwrite-confirmation property (or call the
* gtk_file_chooser_set_do_overwrite_confirmation() function), and
* they will automatically get a stock confirmation dialog.
* Applications which need to customize this behavior should do
* that, and also connect to the #GtkFileChooser::confirm-overwrite
* signal.
*
* A signal handler for this signal must return a
* #GtkFileChooserConfirmation value, which indicates the action to
* take. If the handler determines that the user wants to select a
* different filename, it should return
* %GTK_FILE_CHOOSER_CONFIRMATION_SELECT_AGAIN. If it determines
* that the user is satisfied with his choice of file name, it
* should return %GTK_FILE_CHOOSER_CONFIRMATION_ACCEPT_FILENAME.
* On the other hand, if it determines that the stock confirmation
* dialog should be used, it should return
* %GTK_FILE_CHOOSER_CONFIRMATION_CONFIRM. The following example
* illustrates this.
* <example id="gtkfilechooser-confirmation">
* <title>Custom confirmation</title>
* |[<!-- language="C" -->
* static GtkFileChooserConfirmation
* confirm_overwrite_callback (GtkFileChooser *chooser, gpointer data)
* {
* char *uri;
*
* uri = gtk_file_chooser_get_uri (chooser);
*
* if (is_uri_read_only (uri))
* {
* if (user_wants_to_replace_read_only_file (uri))
* return GTK_FILE_CHOOSER_CONFIRMATION_ACCEPT_FILENAME;
* else
* return GTK_FILE_CHOOSER_CONFIRMATION_SELECT_AGAIN;
* } else
* return GTK_FILE_CHOOSER_CONFIRMATION_CONFIRM; // fall back to the default dialog
* }
*
* ...
*
* chooser = gtk_file_chooser_dialog_new (...);
*
* gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog), TRUE);
* g_signal_connect (chooser, "confirm-overwrite",
* G_CALLBACK (confirm_overwrite_callback), NULL);
*
* if (gtk_dialog_run (chooser) == GTK_RESPONSE_ACCEPT)
* save_to_file (gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (chooser));
*
* gtk_widget_destroy (chooser);
* ]|
* </example>
*
* Returns: a #GtkFileChooserConfirmation value that indicates which
* action to take after emitting the signal.
*
* Since: 2.8
*/
g_signal_new (I_("confirm-overwrite"),
iface_type,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkFileChooserIface, confirm_overwrite),
confirm_overwrite_accumulator, NULL,
_gtk_marshal_ENUM__VOID,
GTK_TYPE_FILE_CHOOSER_CONFIRMATION, 0);
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));
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));
g_object_interface_install_property (iface,
g_param_spec_boolean ("local-only",
P_("Local Only"),
P_("Whether the selected file(s) should be limited to local file: URLs"),
TRUE,
GTK_PARAM_READWRITE));
g_object_interface_install_property (iface,
g_param_spec_object ("preview-widget",
P_("Preview widget"),
P_("Application supplied widget for custom previews."),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE));
g_object_interface_install_property (iface,
g_param_spec_boolean ("preview-widget-active",
P_("Preview Widget Active"),
P_("Whether the application supplied widget for custom previews should be shown."),
TRUE,
GTK_PARAM_READWRITE));
g_object_interface_install_property (iface,
g_param_spec_boolean ("use-preview-label",
P_("Use Preview Label"),
P_("Whether to display a stock label with the name of the previewed file."),
TRUE,
GTK_PARAM_READWRITE));
g_object_interface_install_property (iface,
g_param_spec_object ("extra-widget",
P_("Extra widget"),
P_("Application supplied widget for extra options."),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE));
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));
g_object_interface_install_property (iface,
g_param_spec_boolean ("show-hidden",
P_("Show Hidden"),
P_("Whether the hidden files and folders should be displayed"),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkFileChooser:do-overwrite-confirmation:
*
* Whether a file chooser in %GTK_FILE_CHOOSER_ACTION_SAVE mode
* will present an overwrite confirmation dialog if the user
* selects a file name that already exists.
*
* Since: 2.8
*/
g_object_interface_install_property (iface,
g_param_spec_boolean ("do-overwrite-confirmation",
P_("Do overwrite confirmation"),
P_("Whether a file chooser in save mode "
"will present an overwrite confirmation dialog "
"if necessary."),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkFileChooser:create-folders:
*
* Whether a file chooser not in %GTK_FILE_CHOOSER_ACTION_OPEN mode
* will offer the user to create new folders.
*
* Since: 2.18
*/
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 if necessary.
*
* Return value: The error quark used for #GtkFileChooser errors.
*
* Since: 2.4
**/
GQuark
gtk_file_chooser_error_quark (void)
{
return g_quark_from_static_string ("gtk-file-chooser-error-quark");
}
/**
* gtk_file_chooser_set_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.
*
* Since: 2.4
**/
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:
* @chooser: a #GtkFileChooser
*
* Gets the type of operation that the file chooser is performing; see
* gtk_file_chooser_set_action().
*
* Return value: the action that the file selector is performing
*
* Since: 2.4
**/
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_local_only:
* @chooser: a #GtkFileChooser
* @local_only: %TRUE if only local files can be selected
*
* Sets whether only local files can be selected in the
* file selector. If @local_only is %TRUE (the default),
* then the selected file are files are guaranteed to be
* accessible through the operating systems native file
* file system and therefore the application only
* needs to worry about the filename functions in
* #GtkFileChooser, like gtk_file_chooser_get_filename(),
* rather than the URI functions like
* gtk_file_chooser_get_uri(),
*
* On some systems non-native files may still be
* available using the native filesystem via a userspace
* filesystem (FUSE).
*
* Since: 2.4
**/
void
gtk_file_chooser_set_local_only (GtkFileChooser *chooser,
gboolean local_only)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_object_set (chooser, "local-only", local_only, NULL);
}
/**
* gtk_file_chooser_get_local_only:
* @chooser: a #GtkFileChooser
*
* Gets whether only local files can be selected in the
* file selector. See gtk_file_chooser_set_local_only()
*
* Return value: %TRUE if only local files can be selected.
*
* Since: 2.4
**/
gboolean
gtk_file_chooser_get_local_only (GtkFileChooser *chooser)
{
gboolean local_only;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_object_get (chooser, "local-only", &local_only, NULL);
return local_only;
}
/**
* gtk_file_chooser_set_select_multiple:
* @chooser: a #GtkFileChooser
* @select_multiple: %TRUE if multiple files can be selected.
*
* Sets whether multiple files can be selected in the file selector. This is
* only relevant if the action is set to be %GTK_FILE_CHOOSER_ACTION_OPEN or
* %GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER.
*
* Since: 2.4
**/
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:
* @chooser: a #GtkFileChooser
*
* Gets whether multiple files can be selected in the file
* selector. See gtk_file_chooser_set_select_multiple().
*
* Return value: %TRUE if multiple files can be selected.
*
* Since: 2.4
**/
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:
* @chooser: a #GtkFileChooser
* @create_folders: %TRUE if the New Folder button should be displayed
*
* Sets whether file choser will offer to create new folders.
* This is only relevant if the action is not set to be
* %GTK_FILE_CHOOSER_ACTION_OPEN.
*
* Since: 2.18
**/
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:
* @chooser: a #GtkFileChooser
*
* Gets whether file choser will offer to create new folders.
* See gtk_file_chooser_set_create_folders().
*
* Return value: %TRUE if the New Folder button should be displayed.
*
* Since: 2.18
**/
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_get_filename:
* @chooser: a #GtkFileChooser
*
* Gets the filename for the currently selected file in
* the file selector. The filename is returned as an absolute path. If
* multiple files are selected, one of the filenames will be returned at
* random.
*
* If the file chooser is in folder mode, this function returns the selected
* folder.
*
* Return value: (type filename): The currently selected filename, or %NULL
* if no file is selected, or the selected file can't
* be represented with a local filename. Free with g_free().
*
* Since: 2.4
**/
gchar *
gtk_file_chooser_get_filename (GtkFileChooser *chooser)
{
GFile *file;
gchar *result = NULL;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
file = gtk_file_chooser_get_file (chooser);
if (file)
{
result = g_file_get_path (file);
g_object_unref (file);
}
return result;
}
/**
* gtk_file_chooser_set_filename:
* @chooser: a #GtkFileChooser
* @filename: (type filename): the filename to set as current
*
* Sets @filename as the current filename for the file chooser, by changing to
* the file's parent folder and actually selecting the file in list; all other
* files will be unselected. If the @chooser is in
* %GTK_FILE_CHOOSER_ACTION_SAVE mode, the file's base name will also appear in
* the dialog's file name entry.
*
* Note that the file must exist, or nothing will be done except
* for the directory change.
*
* You should use this function only when implementing a save
* dialog for which 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... to save a copy or
* a modified version. If you don't have a file name already &mdash; 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:
* |[<!-- language="C" -->
* if (document_is_new)
* {
* /&ast; the user just created a new document &ast;/
* gtk_file_chooser_set_current_name (chooser, "Untitled document");
* }
* else
* {
* /&ast; the user edited an existing document &ast;/
* gtk_file_chooser_set_filename (chooser, existing_filename);
* }
* ]|
*
* In the first case, the file chooser will present the user with useful suggestions
* as to where to save his new file. In the second case, the file's existing location
* is already known, so the file chooser will use it.
*
* Return value: Not useful.
*
* Since: 2.4
**/
gboolean
gtk_file_chooser_set_filename (GtkFileChooser *chooser,
const gchar *filename)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
gtk_file_chooser_unselect_all (chooser);
return gtk_file_chooser_select_filename (chooser, filename);
}
/**
* gtk_file_chooser_select_filename:
* @chooser: a #GtkFileChooser
* @filename: (type filename): the filename to select
*
* Selects a filename. If the file name isn't in the current
* folder of @chooser, then the current folder of @chooser will
* be changed to the folder containing @filename.
*
* Return value: Not useful.
*
* See also: gtk_file_chooser_set_filename()
*
* Since: 2.4
**/
gboolean
gtk_file_chooser_select_filename (GtkFileChooser *chooser,
const gchar *filename)
{
GFile *file;
gboolean result;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_return_val_if_fail (filename != NULL, FALSE);
file = g_file_new_for_path (filename);
result = gtk_file_chooser_select_file (chooser, file, NULL);
g_object_unref (file);
return result;
}
/**
* gtk_file_chooser_unselect_filename:
* @chooser: a #GtkFileChooser
* @filename: (type filename): the filename to unselect
*
* Unselects a currently selected filename. If the filename
* is not in the current directory, does not exist, or
* is otherwise not currently selected, does nothing.
*
* Since: 2.4
**/
void
gtk_file_chooser_unselect_filename (GtkFileChooser *chooser,
const char *filename)
{
GFile *file;
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_return_if_fail (filename != NULL);
file = g_file_new_for_path (filename);
gtk_file_chooser_unselect_file (chooser, file);
g_object_unref (file);
}
/* Converts a list of GFile* to a list of strings using the specified function */
static GSList *
files_to_strings (GSList *files,
gchar * (*convert_func) (GFile *file))
{
GSList *strings;
strings = NULL;
for (; files; files = files->next)
{
GFile *file;
gchar *string;
file = files->data;
string = (* convert_func) (file);
if (string)
strings = g_slist_prepend (strings, string);
}
return g_slist_reverse (strings);
}
static gchar *
file_to_uri_with_native_path (GFile *file)
{
gchar *result = NULL;
gchar *native;
native = g_file_get_path (file);
if (native)
{
result = g_filename_to_uri (native, NULL, NULL); /* NULL-GError */
g_free (native);
}
return result;
}
/**
* gtk_file_chooser_get_filenames:
* @chooser: a #GtkFileChooser
*
* Lists all the selected files and subfolders in the current folder of
* @chooser. The returned names are full absolute paths. If files in the current
* folder cannot be represented as local filenames they will be ignored. (See
* gtk_file_chooser_get_uris())
*
* Return value: (element-type filename) (transfer full): a #GSList
* containing the filenames of all selected files and subfolders in
* the current folder. Free the returned list with g_slist_free(),
* and the filenames with g_free().
*
* Since: 2.4
**/
GSList *
gtk_file_chooser_get_filenames (GtkFileChooser *chooser)
{
GSList *files, *result;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
files = gtk_file_chooser_get_files (chooser);
result = files_to_strings (files, g_file_get_path);
g_slist_foreach (files, (GFunc) g_object_unref, NULL);
g_slist_free (files);
return result;
}
/**
* gtk_file_chooser_set_current_folder:
* @chooser: a #GtkFileChooser
* @filename: (type filename): the full path of the new current folder
*
* Sets the current folder for @chooser from a local filename.
* The user will be shown the full contents of the current folder,
* plus user interface elements for navigating to other folders.
*
* In general, you should not use this function. See the <link
* linkend="gtkfilechooserdialog-setting-up">section on setting up a file
* chooser dialog</link> for the rationale behind this.
*
* Return value: Not useful.
*
* Since: 2.4
**/
gboolean
gtk_file_chooser_set_current_folder (GtkFileChooser *chooser,
const gchar *filename)
{
GFile *file;
gboolean result;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_return_val_if_fail (filename != NULL, FALSE);
file = g_file_new_for_path (filename);
result = gtk_file_chooser_set_current_folder_file (chooser, file, NULL);
g_object_unref (file);
return result;
}
/**
* gtk_file_chooser_get_current_folder:
* @chooser: a #GtkFileChooser
*
* Gets the current folder of @chooser as a local filename.
* See gtk_file_chooser_set_current_folder().
*
* Note that this is the folder that the file chooser is currently displaying
* (e.g. "/home/username/Documents"), which is not the same
* as the currently-selected folder if the chooser is in
* %GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER mode
* (e.g. "/home/username/Documents/selected-folder/". To get the
* currently-selected folder in that mode, use gtk_file_chooser_get_uri() as the
* usual way to get the selection.
*
* Return value: (type filename): the full path of the current folder,
* or %NULL if the current path cannot be represented as a local
* filename. Free with g_free(). This function will also return
* %NULL if the file chooser was unable to load the last folder that
* was requested from it; for example, as would be for calling
* gtk_file_chooser_set_current_folder() on a nonexistent folder.
*
* Since: 2.4
**/
gchar *
gtk_file_chooser_get_current_folder (GtkFileChooser *chooser)
{
GFile *file;
gchar *filename;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
file = gtk_file_chooser_get_current_folder_file (chooser);
if (!file)
return NULL;
filename = g_file_get_path (file);
g_object_unref (file);
return filename;
}
/**
* gtk_file_chooser_set_current_name:
* @chooser: a #GtkFileChooser
* @name: (type filename): 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
* gtk_file_chooser_set_filename() or gtk_file_chooser_set_uri() instead.
* Please see the documentation for those functions for an example of using
* gtk_file_chooser_set_current_name() as well.
*
* Since: 2.4
**/
void
gtk_file_chooser_set_current_name (GtkFileChooser *chooser,
const gchar *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 in the
* text entry for "Name".
*
* This is meant to be used in save dialogs, to get the currently typed filename
* when the file itself does not exist yet. For example, an application that
* adds a custom extra widget to the file chooser for "file format" may want to
* change the extension of the typed filename based on the chosen format, say,
* from ".jpg" to ".png".
*
* Returns: The raw text from the file chooser's "Name" entry. Free this 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 system's encoding for filenames.
*
* Since: 3.10
**/
gchar *
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);
}
/**
* gtk_file_chooser_get_uri:
* @chooser: a #GtkFileChooser
*
* Gets the URI for the currently selected file in
* the file selector. If multiple files are selected,
* one of the filenames will be returned at random.
*
* If the file chooser is in folder mode, this function returns the selected
* folder.
*
* Return value: The currently selected URI, or %NULL
* if no file is selected. If gtk_file_chooser_set_local_only() is set to %TRUE
* (the default) a local URI will be returned for any FUSE locations.
* Free with g_free()
*
* Since: 2.4
**/
gchar *
gtk_file_chooser_get_uri (GtkFileChooser *chooser)
{
GFile *file;
gchar *result = NULL;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
file = gtk_file_chooser_get_file (chooser);
if (file)
{
if (gtk_file_chooser_get_local_only (chooser))
result = file_to_uri_with_native_path (file);
else
result = g_file_get_uri (file);
g_object_unref (file);
}
return result;
}
/**
* gtk_file_chooser_set_uri:
* @chooser: a #GtkFileChooser
* @uri: the URI to set as current
*
* Sets the file referred to by @uri as the current file for the file chooser,
* by changing to the URI's parent folder and actually selecting the URI in the
* list. If the @chooser is %GTK_FILE_CHOOSER_ACTION_SAVE mode, the URI's base
* name will also appear in the dialog's file name entry.
*
* Note that the URI must exist, or nothing will be done except for the
* directory change.
*
* You should use this function only when implementing a save
* dialog for which 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... to save a copy or a
* modified version. If you don't have a file name already &mdash; 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:
* |[<!-- language="C" -->
* if (document_is_new)
* {
* /&ast; the user just created a new document &ast;/
* gtk_file_chooser_set_current_name (chooser, "Untitled document");
* }
* else
* {
* /&ast; the user edited an existing document &ast;/
* gtk_file_chooser_set_uri (chooser, existing_uri);
* }
* ]|
*
*
* In the first case, the file chooser will present the user with useful suggestions
* as to where to save his new file. In the second case, the file's existing location
* is already known, so the file chooser will use it.
*
* Return value: Not useful.
*
* Since: 2.4
**/
gboolean
gtk_file_chooser_set_uri (GtkFileChooser *chooser,
const char *uri)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
gtk_file_chooser_unselect_all (chooser);
return gtk_file_chooser_select_uri (chooser, uri);
}
/**
* gtk_file_chooser_select_uri:
* @chooser: a #GtkFileChooser
* @uri: the URI to select
*
* Selects the file to by @uri. If the URI doesn't refer to a
* file in the current folder of @chooser, then the current folder of
* @chooser will be changed to the folder containing @filename.
*
* Return value: Not useful.
*
* Since: 2.4
**/
gboolean
gtk_file_chooser_select_uri (GtkFileChooser *chooser,
const char *uri)
{
GFile *file;
gboolean result;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_return_val_if_fail (uri != NULL, FALSE);
file = g_file_new_for_uri (uri);
result = gtk_file_chooser_select_file (chooser, file, NULL);
g_object_unref (file);
return result;
}
/**
* gtk_file_chooser_unselect_uri:
* @chooser: a #GtkFileChooser
* @uri: the URI to unselect
*
* Unselects the file referred to by @uri. If the file
* is not in the current directory, does not exist, or
* is otherwise not currently selected, does nothing.
*
* Since: 2.4
**/
void
gtk_file_chooser_unselect_uri (GtkFileChooser *chooser,
const char *uri)
{
GFile *file;
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_return_if_fail (uri != NULL);
file = g_file_new_for_uri (uri);
gtk_file_chooser_unselect_file (chooser, file);
g_object_unref (file);
}
/**
* gtk_file_chooser_select_all:
* @chooser: a #GtkFileChooser
*
* Selects all the files in the current folder of a file chooser.
*
* Since: 2.4
**/
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);
}
/**
* gtk_file_chooser_unselect_all:
* @chooser: a #GtkFileChooser
*
* Unselects all the files in the current folder of a file chooser.
*
* Since: 2.4
**/
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_get_uris:
* @chooser: a #GtkFileChooser
*
* Lists all the selected files and subfolders in the current folder of
* @chooser. The returned names are full absolute URIs.
*
* Return value: (element-type utf8) (transfer full): a #GSList containing the URIs of all selected
* files and subfolders in the current folder. Free the returned list
* with g_slist_free(), and the filenames with g_free().
*
* Since: 2.4
**/
GSList *
gtk_file_chooser_get_uris (GtkFileChooser *chooser)
{
GSList *files, *result;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
files = gtk_file_chooser_get_files (chooser);
if (gtk_file_chooser_get_local_only (chooser))
result = files_to_strings (files, file_to_uri_with_native_path);
else
result = files_to_strings (files, g_file_get_uri);
g_slist_foreach (files, (GFunc) g_object_unref, NULL);
g_slist_free (files);
return result;
}
/**
* gtk_file_chooser_set_current_folder_uri:
* @chooser: a #GtkFileChooser
* @uri: the URI for the new current folder
*
* Sets the current folder for @chooser from an URI.
* The user will be shown the full contents of the current folder,
* plus user interface elements for navigating to other folders.
*
* In general, you should not use this function. See the <link
* linkend="gtkfilechooserdialog-setting-up">section on setting up a file
* chooser dialog</link> for the rationale behind this.
*
* Return value: %TRUE if the folder could be changed successfully, %FALSE
* otherwise.
*
* Since: 2.4
**/
gboolean
gtk_file_chooser_set_current_folder_uri (GtkFileChooser *chooser,
const gchar *uri)
{
GFile *file;
gboolean result;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_return_val_if_fail (uri != NULL, FALSE);
file = g_file_new_for_uri (uri);
result = gtk_file_chooser_set_current_folder_file (chooser, file, NULL);
g_object_unref (file);
return result;
}
/**
* gtk_file_chooser_get_current_folder_uri:
* @chooser: a #GtkFileChooser
*
* Gets the current folder of @chooser as an URI.
* See gtk_file_chooser_set_current_folder_uri().
*
* Note that this is the folder that the file chooser is currently displaying
* (e.g. "file:///home/username/Documents"), which is not the same
* as the currently-selected folder if the chooser is in
* %GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER mode
* (e.g. "file:///home/username/Documents/selected-folder/". To get the
* currently-selected folder in that mode, use gtk_file_chooser_get_uri() as the
* usual way to get the selection.
*
* Return value: the URI for the current folder. Free with g_free(). This
* function will also return %NULL if the file chooser was unable to load the
* last folder that was requested from it; for example, as would be for calling
* gtk_file_chooser_set_current_folder_uri() on a nonexistent folder.
*
* Since: 2.4
*/
gchar *
gtk_file_chooser_get_current_folder_uri (GtkFileChooser *chooser)
{
GFile *file;
gchar *uri;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
file = gtk_file_chooser_get_current_folder_file (chooser);
if (!file)
return NULL;
uri = g_file_get_uri (file);
g_object_unref (file);
return uri;
}
/**
* gtk_file_chooser_set_current_folder_file:
* @chooser: a #GtkFileChooser
* @file: the #GFile for the new folder
* @error: (allow-none): location to store error, or %NULL.
*
* Sets the current folder for @chooser from a #GFile.
* Internal function, see gtk_file_chooser_set_current_folder_uri().
*
* Return value: %TRUE if the folder could be changed successfully, %FALSE
* otherwise.
*
* Since: 2.14
**/
gboolean
gtk_file_chooser_set_current_folder_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)->set_current_folder (chooser, file, error);
}
/**
* gtk_file_chooser_get_current_folder_file:
* @chooser: a #GtkFileChooser
*
* Gets the current folder of @chooser as #GFile.
* See gtk_file_chooser_get_current_folder_uri().
*
* Return value: (transfer full): the #GFile for the current folder.
*
* Since: 2.14
*/
GFile *
gtk_file_chooser_get_current_folder_file (GtkFileChooser *chooser)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->get_current_folder (chooser);
}
/**
* gtk_file_chooser_select_file:
* @chooser: a #GtkFileChooser
* @file: the file to select
* @error: (allow-none): location to store error, or %NULL
*
* Selects the file referred to by @file. An internal function. See
* _gtk_file_chooser_select_uri().
*
* Return value: Not useful.
*
* Since: 2.14
**/
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);
}
/**
* gtk_file_chooser_unselect_file:
* @chooser: a #GtkFileChooser
* @file: a #GFile
*
* Unselects the file referred to by @file. If the file is not in the current
* directory, does not exist, or is otherwise not currently selected, does nothing.
*
* Since: 2.14
**/
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. An internal function, see gtk_file_chooser_get_uris().
*
* Return value: (element-type GFile) (transfer full): a #GSList
* containing a #GFile for each selected file and subfolder in the
* current folder. Free the returned list with g_slist_free(), and
* the files with g_object_unref().
*
* Since: 2.14
**/
GSList *
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, by changing
* to the file's parent folder and actually selecting the file in list. If
* the @chooser is in %GTK_FILE_CHOOSER_ACTION_SAVE mode, the file's base name
* will also appear in the dialog's file name entry.
*
* If the file name isn't in the current folder of @chooser, then the current
* folder of @chooser will be changed to the folder containing @filename. This
* is equivalent to a sequence of gtk_file_chooser_unselect_all() followed by
* gtk_file_chooser_select_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 don't have
* a file name already &mdash; 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:
* |[<!-- language="C" -->
* if (document_is_new)
* {
* /&ast; the user just created a new document &ast;/
* gtk_file_chooser_set_current_folder_file (chooser, default_file_for_saving);
* gtk_file_chooser_set_current_name (chooser, "Untitled document");
* }
* else
* {
* /&ast; the user edited an existing document &ast;/
* gtk_file_chooser_set_file (chooser, existing_file);
* }
* ]|
*
* Return value: Not useful.
*
* Since: 2.14
**/
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.
*
* Since: 2.14
**/
GFile *
gtk_file_chooser_get_file (GtkFileChooser *chooser)
{
GSList *list;
GFile *result = NULL;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
list = gtk_file_chooser_get_files (chooser);
if (list)
{
result = list->data;
list = g_slist_delete_link (list, list);
g_slist_foreach (list, (GFunc) g_object_unref, NULL);
g_slist_free (list);
}
return result;
}
/**
* _gtk_file_chooser_get_file_system:
* @chooser: a #GtkFileChooser
*
* Gets the #GtkFileSystem of @chooser; this is an internal
* implementation detail, used for conversion between paths
* and filenames and URIs.
*
* Return value: the file system for @chooser.
*
* Since: 2.4
**/
GtkFileSystem *
_gtk_file_chooser_get_file_system (GtkFileChooser *chooser)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->get_file_system (chooser);
}
/* Preview widget
*/
/**
* gtk_file_chooser_set_preview_widget:
* @chooser: a #GtkFileChooser
* @preview_widget: widget for displaying preview.
*
* Sets an application-supplied widget to use to display a custom preview
* of the currently selected file. To implement a preview, after setting the
* preview widget, you connect to the #GtkFileChooser::update-preview
* signal, and call gtk_file_chooser_get_preview_filename() or
* gtk_file_chooser_get_preview_uri() on each change. If you can
* display a preview of the new file, update your widget and
* set the preview active using gtk_file_chooser_set_preview_widget_active().
* Otherwise, set the preview inactive.
*
* When there is no application-supplied preview widget, or the
* application-supplied preview widget is not active, the file chooser
* will display no preview at all.
*
* Since: 2.4
**/
void
gtk_file_chooser_set_preview_widget (GtkFileChooser *chooser,
GtkWidget *preview_widget)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_object_set (chooser, "preview-widget", preview_widget, NULL);
}
/**
* gtk_file_chooser_get_preview_widget:
* @chooser: a #GtkFileChooser
*
* Gets the current preview widget; see
* gtk_file_chooser_set_preview_widget().
*
* Return value: (transfer none): the current preview widget, or %NULL
*
* Since: 2.4
**/
GtkWidget *
gtk_file_chooser_get_preview_widget (GtkFileChooser *chooser)
{
GtkWidget *preview_widget;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
g_object_get (chooser, "preview-widget", &preview_widget, NULL);
/* Horrid hack; g_object_get() refs returned objects but
* that contradicts the memory management conventions
* for accessors.
*/
if (preview_widget)
g_object_unref (preview_widget);
return preview_widget;
}
/**
* gtk_file_chooser_set_preview_widget_active:
* @chooser: a #GtkFileChooser
* @active: whether to display the user-specified preview widget
*
* Sets whether the preview widget set by
* gtk_file_chooser_set_preview_widget() should be shown for the
* current filename. When @active is set to false, the file chooser
* may display an internally generated preview of the current file
* or it may display no preview at all. See
* gtk_file_chooser_set_preview_widget() for more details.
*
* Since: 2.4
**/
void
gtk_file_chooser_set_preview_widget_active (GtkFileChooser *chooser,
gboolean active)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_object_set (chooser, "preview-widget-active", active, NULL);
}
/**
* gtk_file_chooser_get_preview_widget_active:
* @chooser: a #GtkFileChooser
*
* Gets whether the preview widget set by gtk_file_chooser_set_preview_widget()
* should be shown for the current filename. See
* gtk_file_chooser_set_preview_widget_active().
*
* Return value: %TRUE if the preview widget is active for the current filename.
*
* Since: 2.4
**/
gboolean
gtk_file_chooser_get_preview_widget_active (GtkFileChooser *chooser)
{
gboolean active;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_object_get (chooser, "preview-widget-active", &active, NULL);
return active;
}
/**
* gtk_file_chooser_set_use_preview_label:
* @chooser: a #GtkFileChooser
* @use_label: whether to display a stock label with the name of the previewed file
*
* Sets whether the file chooser should display a stock label with the name of
* the file that is being previewed; the default is %TRUE. Applications that
* want to draw the whole preview area themselves should set this to %FALSE and
* display the name themselves in their preview widget.
*
* See also: gtk_file_chooser_set_preview_widget()
*
* Since: 2.4
**/
void
gtk_file_chooser_set_use_preview_label (GtkFileChooser *chooser,
gboolean use_label)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_object_set (chooser, "use-preview-label", use_label, NULL);
}
/**
* gtk_file_chooser_get_use_preview_label:
* @chooser: a #GtkFileChooser
*
* Gets whether a stock label should be drawn with the name of the previewed
* file. See gtk_file_chooser_set_use_preview_label().
*
* Return value: %TRUE if the file chooser is set to display a label with the
* name of the previewed file, %FALSE otherwise.
**/
gboolean
gtk_file_chooser_get_use_preview_label (GtkFileChooser *chooser)
{
gboolean use_label;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_object_get (chooser, "use-preview-label", &use_label, NULL);
return use_label;
}
/**
* gtk_file_chooser_get_preview_file:
* @chooser: a #GtkFileChooser
*
* Gets the #GFile that should be previewed in a custom preview
* Internal function, see gtk_file_chooser_get_preview_uri().
*
* Return value: (transfer full): the #GFile for the file to preview,
* or %NULL if no file is selected. Free with g_object_unref().
*
* Since: 2.14
**/
GFile *
gtk_file_chooser_get_preview_file (GtkFileChooser *chooser)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->get_preview_file (chooser);
}
/**
* _gtk_file_chooser_add_shortcut_folder:
* @chooser: a #GtkFileChooser
* @file: file for the folder to add
* @error: (allow-none): location to store error, or %NULL
*
* Adds a folder to be displayed with the shortcut folders in a file chooser.
* Internal function, see gtk_file_chooser_add_shortcut_folder().
*
* Return value: %TRUE if the folder could be added successfully, %FALSE
* otherwise.
*
* Since: 2.4
**/
gboolean
_gtk_file_chooser_add_shortcut_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);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->add_shortcut_folder (chooser, file, error);
}
/**
* _gtk_file_chooser_remove_shortcut_folder:
* @chooser: a #GtkFileChooser
* @file: file for the folder to remove
* @error: (allow-none): location to store error, or %NULL
*
* Removes a folder from the shortcut folders in a file chooser. Internal
* function, see gtk_file_chooser_remove_shortcut_folder().
*
* Return value: %TRUE if the folder could be removed successfully, %FALSE
* otherwise.
*
* Since: 2.4
**/
gboolean
_gtk_file_chooser_remove_shortcut_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);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->remove_shortcut_folder (chooser, file, error);
}
/**
* gtk_file_chooser_get_preview_filename:
* @chooser: a #GtkFileChooser
*
* Gets the filename that should be previewed in a custom preview
* widget. See gtk_file_chooser_set_preview_widget().
*
* Return value: (type filename): the filename to preview, or %NULL if
* no file is selected, or if the selected file cannot be represented
* as a local filename. Free with g_free()
*
* Since: 2.4
**/
char *
gtk_file_chooser_get_preview_filename (GtkFileChooser *chooser)
{
GFile *file;
gchar *result = NULL;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
file = gtk_file_chooser_get_preview_file (chooser);
if (file)
{
result = g_file_get_path (file);
g_object_unref (file);
}
return result;
}
/**
* gtk_file_chooser_get_preview_uri:
* @chooser: a #GtkFileChooser
*
* Gets the URI that should be previewed in a custom preview
* widget. See gtk_file_chooser_set_preview_widget().
*
* Return value: the URI for the file to preview, or %NULL if no file is
* selected. Free with g_free().
*
* Since: 2.4
**/
char *
gtk_file_chooser_get_preview_uri (GtkFileChooser *chooser)
{
GFile *file;
gchar *result = NULL;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
file = gtk_file_chooser_get_preview_file (chooser);
if (file)
{
result = g_file_get_uri (file);
g_object_unref (file);
}
return result;
}
/**
* gtk_file_chooser_set_extra_widget:
* @chooser: a #GtkFileChooser
* @extra_widget: widget for extra options
*
* Sets an application-supplied widget to provide extra options to the user.
*
* Since: 2.4
**/
void
gtk_file_chooser_set_extra_widget (GtkFileChooser *chooser,
GtkWidget *extra_widget)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_object_set (chooser, "extra-widget", extra_widget, NULL);
}
/**
* gtk_file_chooser_get_extra_widget:
* @chooser: a #GtkFileChooser
*
* Gets the current preview widget; see
* gtk_file_chooser_set_extra_widget().
*
* Return value: (transfer none): the current extra widget, or %NULL
*
* Since: 2.4
**/
GtkWidget *
gtk_file_chooser_get_extra_widget (GtkFileChooser *chooser)
{
GtkWidget *extra_widget;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
g_object_get (chooser, "extra-widget", &extra_widget, NULL);
/* Horrid hack; g_object_get() refs returned objects but
* that contradicts the memory management conventions
* for accessors.
*/
if (extra_widget)
g_object_unref (extra_widget);
return extra_widget;
}
/**
* gtk_file_chooser_add_filter:
* @chooser: a #GtkFileChooser
* @filter: 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, so you have to
* ref and sink it if you want to keep a reference.
*
* Since: 2.4
**/
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.
*
* Since: 2.4
**/
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_list_filters:
* @chooser: a #GtkFileChooser
*
* Lists the current set of user-selectable filters; see
* gtk_file_chooser_add_filter(), gtk_file_chooser_remove_filter().
*
* Return value: (element-type GtkFileFilter) (transfer container): a
* #GSList containing the current set of user selectable filters. The
* contents of the list are owned by GTK+, but you must free the list
* itself with g_slist_free() when you are done with it.
*
* Since: 2.4
**/
GSList *
gtk_file_chooser_list_filters (GtkFileChooser *chooser)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->list_filters (chooser);
}
/**
* gtk_file_chooser_set_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.
*
* Since: 2.4
**/
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:
* @chooser: a #GtkFileChooser
*
* Gets the current filter; see gtk_file_chooser_set_filter().
*
* Return value: (transfer none): the current filter, or %NULL
*
* Since: 2.4
**/
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_add_shortcut_folder:
* @chooser: a #GtkFileChooser
* @folder: (type filename): filename of the folder to add
* @error: (allow-none): location to store error, or %NULL
*
* Adds a folder to be displayed with the shortcut folders in a file chooser.
* Note that shortcut folders do not get saved, as they are provided by the
* application. For example, you can use this to add a
* "/usr/share/mydrawprogram/Clipart" folder to the volume list.
*
* Return value: %TRUE if the folder could be added successfully, %FALSE
* otherwise. In the latter case, the @error will be set as appropriate.
*
* Since: 2.4
**/
gboolean
gtk_file_chooser_add_shortcut_folder (GtkFileChooser *chooser,
const char *folder,
GError **error)
{
GFile *file;
gboolean result;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_return_val_if_fail (folder != NULL, FALSE);
file = g_file_new_for_path (folder);
result = GTK_FILE_CHOOSER_GET_IFACE (chooser)->add_shortcut_folder (chooser, file, error);
g_object_unref (file);
return result;
}
/**
* gtk_file_chooser_remove_shortcut_folder:
* @chooser: a #GtkFileChooser
* @folder: (type filename): filename of the folder to remove
* @error: (allow-none): location to store error, or %NULL
*
* Removes a folder from a file chooser's list of shortcut folders.
*
* Return value: %TRUE if the operation succeeds, %FALSE otherwise.
* In the latter case, the @error will be set as appropriate.
*
* See also: gtk_file_chooser_add_shortcut_folder()
*
* Since: 2.4
**/
gboolean
gtk_file_chooser_remove_shortcut_folder (GtkFileChooser *chooser,
const char *folder,
GError **error)
{
GFile *file;
gboolean result;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_return_val_if_fail (folder != NULL, FALSE);
file = g_file_new_for_path (folder);
result = GTK_FILE_CHOOSER_GET_IFACE (chooser)->remove_shortcut_folder (chooser, file, error);
g_object_unref (file);
return result;
}
/**
* gtk_file_chooser_list_shortcut_folders:
* @chooser: a #GtkFileChooser
*
* Queries the list of shortcut folders in the file chooser, as set by
* gtk_file_chooser_add_shortcut_folder().
*
* Return value: (element-type filename) (transfer full): A list of
* folder filenames, or %NULL if there are no shortcut folders. Free
* the returned list with g_slist_free(), and the filenames with
* g_free().
*
* Since: 2.4
**/
GSList *
gtk_file_chooser_list_shortcut_folders (GtkFileChooser *chooser)
{
GSList *folders;
GSList *result;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
folders = _gtk_file_chooser_list_shortcut_folder_files (chooser);
result = files_to_strings (folders, g_file_get_path);
g_slist_foreach (folders, (GFunc) g_object_unref, NULL);
g_slist_free (folders);
return result;
}
/**
* gtk_file_chooser_add_shortcut_folder_uri:
* @chooser: a #GtkFileChooser
* @uri: URI of the folder to add
* @error: (allow-none): location to store error, or %NULL
*
* Adds a folder URI to be displayed with the shortcut folders in a file
* chooser. Note that shortcut folders do not get saved, as they are provided
* by the application. For example, you can use this to add a
* "file:///usr/share/mydrawprogram/Clipart" folder to the volume list.
*
* Return value: %TRUE if the folder could be added successfully, %FALSE
* otherwise. In the latter case, the @error will be set as appropriate.
*
* Since: 2.4
**/
gboolean
gtk_file_chooser_add_shortcut_folder_uri (GtkFileChooser *chooser,
const char *uri,
GError **error)
{
GFile *file;
gboolean result;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_return_val_if_fail (uri != NULL, FALSE);
file = g_file_new_for_uri (uri);
result = GTK_FILE_CHOOSER_GET_IFACE (chooser)->add_shortcut_folder (chooser, file, error);
g_object_unref (file);
return result;
}
/**
* gtk_file_chooser_remove_shortcut_folder_uri:
* @chooser: a #GtkFileChooser
* @uri: URI of the folder to remove
* @error: (allow-none): location to store error, or %NULL
*
* Removes a folder URI from a file chooser's list of shortcut folders.
*
* Return value: %TRUE if the operation succeeds, %FALSE otherwise.
* In the latter case, the @error will be set as appropriate.
*
* See also: gtk_file_chooser_add_shortcut_folder_uri()
*
* Since: 2.4
**/
gboolean
gtk_file_chooser_remove_shortcut_folder_uri (GtkFileChooser *chooser,
const char *uri,
GError **error)
{
GFile *file;
gboolean result;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_return_val_if_fail (uri != NULL, FALSE);
file = g_file_new_for_uri (uri);
result = GTK_FILE_CHOOSER_GET_IFACE (chooser)->remove_shortcut_folder (chooser, file, error);
g_object_unref (file);
return result;
}
/**
* gtk_file_chooser_list_shortcut_folder_uris:
* @chooser: a #GtkFileChooser
*
* Queries the list of shortcut folders in the file chooser, as set by
* gtk_file_chooser_add_shortcut_folder_uri().
*
* Return value: (element-type utf8) (transfer full): A list of folder
* URIs, or %NULL if there are no shortcut folders. Free the returned
* list with g_slist_free(), and the URIs with g_free().
*
* Since: 2.4
**/
GSList *
gtk_file_chooser_list_shortcut_folder_uris (GtkFileChooser *chooser)
{
GSList *folders;
GSList *result;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
folders = _gtk_file_chooser_list_shortcut_folder_files (chooser);
result = files_to_strings (folders, g_file_get_uri);
g_slist_foreach (folders, (GFunc) g_object_unref, NULL);
g_slist_free (folders);
return result;
}
GSList *
_gtk_file_chooser_list_shortcut_folder_files (GtkFileChooser *chooser)
{
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
return GTK_FILE_CHOOSER_GET_IFACE (chooser)->list_shortcut_folders (chooser);
}
/**
* gtk_file_chooser_set_show_hidden:
* @chooser: a #GtkFileChooser
* @show_hidden: %TRUE if hidden files and folders should be displayed.
*
* Sets whether hidden files and folders are displayed in the file selector.
*
* Since: 2.6
**/
void
gtk_file_chooser_set_show_hidden (GtkFileChooser *chooser,
gboolean show_hidden)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_object_set (chooser, "show-hidden", show_hidden, NULL);
}
/**
* gtk_file_chooser_get_show_hidden:
* @chooser: a #GtkFileChooser
*
* Gets whether hidden files and folders are displayed in the file selector.
* See gtk_file_chooser_set_show_hidden().
*
* Return value: %TRUE if hidden files and folders are displayed.
*
* Since: 2.6
**/
gboolean
gtk_file_chooser_get_show_hidden (GtkFileChooser *chooser)
{
gboolean show_hidden;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_object_get (chooser, "show-hidden", &show_hidden, NULL);
return show_hidden;
}
/**
* gtk_file_chooser_set_do_overwrite_confirmation:
* @chooser: a #GtkFileChooser
* @do_overwrite_confirmation: whether to confirm overwriting in save mode
*
* Sets whether a file chooser in %GTK_FILE_CHOOSER_ACTION_SAVE mode will present
* a confirmation dialog if the user types a file name that already exists. This
* is %FALSE by default.
*
* If set to %TRUE, the @chooser will emit the
* #GtkFileChooser::confirm-overwrite signal when appropriate.
*
* If all you need is the stock confirmation dialog, set this property to %TRUE.
* You can override the way confirmation is done by actually handling the
* #GtkFileChooser::confirm-overwrite signal; please refer to its documentation
* for the details.
*
* Since: 2.8
**/
void
gtk_file_chooser_set_do_overwrite_confirmation (GtkFileChooser *chooser,
gboolean do_overwrite_confirmation)
{
g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
g_object_set (chooser, "do-overwrite-confirmation", do_overwrite_confirmation, NULL);
}
/**
* gtk_file_chooser_get_do_overwrite_confirmation:
* @chooser: a #GtkFileChooser
*
* Queries whether a file chooser is set to confirm for overwriting when the user
* types a file name that already exists.
*
* Return value: %TRUE if the file chooser will present a confirmation dialog;
* %FALSE otherwise.
*
* Since: 2.8
**/
gboolean
gtk_file_chooser_get_do_overwrite_confirmation (GtkFileChooser *chooser)
{
gboolean do_overwrite_confirmation;
g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), FALSE);
g_object_get (chooser, "do-overwrite-confirmation", &do_overwrite_confirmation, NULL);
return do_overwrite_confirmation;
}
Reference in New Issue View Git Blame Copy Permalink