gtk2/gtk/gtkfilechooserutils.c
2020-07-25 00:47:36 +02:00

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/* 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 "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 char *name);
static char * 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 GListModel * delegate_get_files (GtkFileChooser *chooser);
static void delegate_add_filter (GtkFileChooser *chooser,
GtkFileFilter *filter);
static void delegate_remove_filter (GtkFileChooser *chooser,
GtkFileFilter *filter);
static GListModel * delegate_get_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 GListModel * delegate_get_shortcut_folders (GtkFileChooser *chooser);
static void delegate_notify (GObject *object,
GParamSpec *pspec,
gpointer data);
static void delegate_add_choice (GtkFileChooser *chooser,
const char *id,
const char *label,
const char **options,
const char **option_labels);
static void delegate_remove_choice (GtkFileChooser *chooser,
const char *id);
static void delegate_set_choice (GtkFileChooser *chooser,
const char *id,
const char *option);
static const char * delegate_get_choice (GtkFileChooser *chooser,
const char *id);
/**
* _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 dont 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_FILTER,
"filter");
g_object_class_override_property (klass,
GTK_FILE_CHOOSER_PROP_SELECT_MULTIPLE,
"select-multiple");
g_object_class_override_property (klass,
GTK_FILE_CHOOSER_PROP_CREATE_FOLDERS,
"create-folders");
g_object_class_override_property (klass,
GTK_FILE_CHOOSER_PROP_FILTERS,
"filters");
g_object_class_override_property (klass,
GTK_FILE_CHOOSER_PROP_SHORTCUT_FOLDERS,
"shortcut-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->add_filter = delegate_add_filter;
iface->remove_filter = delegate_remove_filter;
iface->get_filters = delegate_get_filters;
iface->add_shortcut_folder = delegate_add_shortcut_folder;
iface->remove_shortcut_folder = delegate_remove_shortcut_folder;
iface->get_shortcut_folders = delegate_get_shortcut_folders;
iface->add_choice = delegate_add_choice;
iface->remove_choice = delegate_remove_choice;
iface->set_choice = delegate_set_choice;
iface->get_choice = delegate_get_choice;
}
/**
* _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);
}
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 GListModel *
delegate_get_files (GtkFileChooser *chooser)
{
return gtk_file_chooser_get_files (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 GListModel *
delegate_get_filters (GtkFileChooser *chooser)
{
return gtk_file_chooser_get_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 GListModel *
delegate_get_shortcut_folders (GtkFileChooser *chooser)
{
return gtk_file_chooser_get_shortcut_folders (get_delegate (chooser));
}
static gboolean
delegate_set_current_folder (GtkFileChooser *chooser,
GFile *file,
GError **error)
{
return gtk_file_chooser_set_current_folder (get_delegate (chooser), file, error);
}
static GFile *
delegate_get_current_folder (GtkFileChooser *chooser)
{
return gtk_file_chooser_get_current_folder (get_delegate (chooser));
}
static void
delegate_set_current_name (GtkFileChooser *chooser,
const char *name)
{
gtk_file_chooser_set_current_name (get_delegate (chooser), name);
}
static char *
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);
}
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.gtk4.Settings.FileChooser");
g_settings_delay (settings);
g_object_set_qdata_full (G_OBJECT (gtksettings),
file_chooser_settings_quark,
settings,
g_object_unref);
}
return settings;
}
char *
_gtk_file_chooser_label_for_file (GFile *file)
{
const char *path, *start, *end, *p;
char *uri, *host, *label;
uri = g_file_get_uri (file);
start = strstr (uri, "://");
if (start)
{
start += 3;
path = strchr (start, '/');
if (path)
end = path;
else
{
end = uri + strlen (uri);
path = "/";
}
/* strip username */
p = strchr (start, '@');
if (p && p < end)
start = p + 1;
p = strchr (start, ':');
if (p && p < end)
end = p;
host = g_strndup (start, end - start);
/* Translators: the first string is a path and the second string
* is a hostname. Nautilus and the panel contain the same string
* to translate.
*/
label = g_strdup_printf (_("%1$s on %2$s"), path, host);
g_free (host);
}
else
{
label = g_strdup (uri);
}
g_free (uri);
return label;
}
static void
delegate_add_choice (GtkFileChooser *chooser,
const char *id,
const char *label,
const char **options,
const char **option_labels)
{
gtk_file_chooser_add_choice (get_delegate (chooser),
id, label, options, option_labels);
}
static void
delegate_remove_choice (GtkFileChooser *chooser,
const char *id)
{
gtk_file_chooser_remove_choice (get_delegate (chooser), id);
}
static void
delegate_set_choice (GtkFileChooser *chooser,
const char *id,
const char *option)
{
gtk_file_chooser_set_choice (get_delegate (chooser), id, option);
}
static const char *
delegate_get_choice (GtkFileChooser *chooser,
const char *id)
{
return gtk_file_chooser_get_choice (get_delegate (chooser), id);
}
gboolean
_gtk_file_info_consider_as_directory (GFileInfo *info)
{
GFileType type = g_file_info_get_file_type (info);
return (type == G_FILE_TYPE_DIRECTORY ||
type == G_FILE_TYPE_MOUNTABLE ||
type == G_FILE_TYPE_SHORTCUT);
}
gboolean
_gtk_file_has_native_path (GFile *file)
{
char *local_file_path;
gboolean has_native_path;
/* Don't use g_file_is_native(), as we want to support FUSE paths if available */
local_file_path = g_file_get_path (file);
has_native_path = (local_file_path != NULL);
g_free (local_file_path);
return has_native_path;
}
gboolean
_gtk_file_consider_as_remote (GFile *file)
{
GFileInfo *info;
gboolean is_remote;
info = g_file_query_filesystem_info (file, G_FILE_ATTRIBUTE_FILESYSTEM_REMOTE, NULL, NULL);
if (info)
{
is_remote = g_file_info_get_attribute_boolean (info, G_FILE_ATTRIBUTE_FILESYSTEM_REMOTE);
g_object_unref (info);
}
else
is_remote = FALSE;
return is_remote;
}
GIcon *
_gtk_file_info_get_icon (GFileInfo *info,
int icon_size,
int scale)
{
GIcon *icon;
GdkPixbuf *pixbuf;
const char *thumbnail_path;
thumbnail_path = g_file_info_get_attribute_byte_string (info, G_FILE_ATTRIBUTE_THUMBNAIL_PATH);
if (thumbnail_path)
{
pixbuf = gdk_pixbuf_new_from_file_at_size (thumbnail_path,
icon_size*scale, icon_size*scale,
NULL);
if (pixbuf != NULL)
return G_ICON (pixbuf);
}
icon = g_file_info_get_icon (info);
if (icon)
return g_object_ref (icon);
/* Use general fallback for all files without icon */
icon = g_themed_icon_new ("text-x-generic");
return icon;
}