/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/*
* Copyright (C) 2001 Ximian, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "e-charset-picker.h"
#include <gal/widgets/e-gui-utils.h>
#include <gal/unicode/gunicode.h>
#include <iconv.h>
#include <gtk/gtklabel.h>
#include <gtk/gtkmenuitem.h>
#include <gtk/gtkoptionmenu.h>
#include <gtk/gtksignal.h>
#include <libgnome/gnome-defs.h>
#include <libgnome/gnome-i18n.h>
#include <libgnomeui/gnome-dialog-util.h>
#include <libgnomeui/gnome-stock.h>
#include <bonobo/bonobo-ui-node.h>
#include <bonobo/bonobo-ui-util.h>
typedef enum {
E_CHARSET_UNKNOWN,
E_CHARSET_BALTIC,
E_CHARSET_CENTRAL_EUROPEAN,
E_CHARSET_CHINESE,
E_CHARSET_CYRILLIC,
E_CHARSET_GREEK,
E_CHARSET_JAPANESE,
E_CHARSET_KOREAN,
E_CHARSET_TURKISH,
E_CHARSET_UNICODE,
E_CHARSET_WESTERN_EUROPEAN
} ECharsetClass;
static const char *classnames[] = {
N_("Unknown"),
N_("Baltic"),
N_("Central European"),
N_("Chinese"),
N_("Cyrillic"),
N_("Greek"),
N_("Japanese"),
N_("Korean"),
N_("Turkish"),
N_("Unicode"),
N_("Western European"),
};
typedef struct {
char *name;
ECharsetClass class;
char *subclass;
} ECharset;
/* This list is based on what other mailers/browsers support. There's
* not a lot of point in using, say, ISO-8859-3, if anything that can
* read that can read UTF8 too.
*/
static ECharset charsets[] = {
{ "ISO-8859-13", E_CHARSET_BALTIC, NULL },
{ "ISO-8859-4", E_CHARSET_BALTIC, NULL },
{ "ISO-8859-2", E_CHARSET_CENTRAL_EUROPEAN, NULL },
{ "Big5", E_CHARSET_CHINESE, N_("Traditional") },
{ "GB-2312", E_CHARSET_CHINESE, N_("Simplified") },
{ "HZ", E_CHARSET_CHINESE, N_("Simplified") },
{ "ISO-2022-CN", E_CHARSET_CHINESE, NULL },
{ "KOI8-R", E_CHARSET_CYRILLIC, NULL },
{ "Windows-1251", E_CHARSET_CYRILLIC, NULL },
{ "KOI8-U", E_CHARSET_CYRILLIC, N_("Ukrainian") },
{ "ISO-8859-5", E_CHARSET_CYRILLIC, NULL },
{ "ISO-8859-7", E_CHARSET_GREEK, NULL },
{ "ISO-2022-JP", E_CHARSET_JAPANESE, NULL },
{ "EUC-JP", E_CHARSET_JAPANESE, NULL },
{ "Shift_JIS", E_CHARSET_JAPANESE, NULL },
{ "EUC-KR", E_CHARSET_KOREAN, NULL },
{ "ISO-8859-9", E_CHARSET_TURKISH, NULL },
{ "UTF-8", E_CHARSET_UNICODE, NULL },
{ "UTF-7", E_CHARSET_UNICODE, NULL },
{ "ISO-8859-1", E_CHARSET_WESTERN_EUROPEAN, NULL },
{ "ISO-8859-15", E_CHARSET_WESTERN_EUROPEAN, N_("New") },
};
static const int num_charsets = sizeof (charsets) / sizeof (charsets[0]);
static void
select_item (GtkMenuShell *menu_shell, GtkWidget *item)
{
gtk_menu_shell_select_item (menu_shell, item);
gtk_menu_shell_deactivate (menu_shell);
}
static void
activate (GtkWidget *item, gpointer menu)
{
gtk_object_set_data (GTK_OBJECT (menu), "activated_item", item);
}
static GtkWidget *
add_charset (GtkWidget *menu, ECharset *charset, gboolean free_name)
{
GtkWidget *item;
char *label;
if (charset->subclass) {
label = g_strdup_printf ("%s, %s (%s)",
_(classnames[charset->class]),
_(charset->subclass),
charset->name);
} else {
label = g_strdup_printf ("%s (%s)",
_(classnames[charset->class]),
charset->name);
}
item = gtk_menu_item_new_with_label (label);
gtk_object_set_data_full (GTK_OBJECT (item), "charset",
charset->name, free_name ? g_free : NULL);
g_free (label);
gtk_widget_show (item);
gtk_menu_append (GTK_MENU (menu), item);
gtk_signal_connect (GTK_OBJECT (item), "activate",
GTK_SIGNAL_FUNC (activate), menu);
return item;
}
static gboolean
add_other_charset (GtkWidget *menu, GtkWidget *other, char *new_charset)
{
ECharset charset = { NULL, E_CHARSET_UNKNOWN, NULL };
GtkWidget *item;
iconv_t ic;
ic = iconv_open ("UTF-8", new_charset);
if (ic == (iconv_t)-1) {
GtkWidget *window = gtk_widget_get_ancestor (other, GTK_TYPE_WINDOW);
e_notice (GTK_WINDOW (window), GNOME_MESSAGE_BOX_ERROR,
_("Unknown character set: %s"), new_charset);
return FALSE;
}
iconv_close (ic);
/* Temporarily remove the "Other..." item */
gtk_object_ref (GTK_OBJECT (other));
gtk_container_remove (GTK_CONTAINER (menu), other);
/* Create new menu item */
charset.name = new_charset;
item = add_charset (menu, &charset, TRUE);
/* And re-add "Other..." */
gtk_menu_append (GTK_MENU (menu), other);
gtk_object_unref (GTK_OBJECT (other));
gtk_object_set_data_full (GTK_OBJECT (menu), "other_charset",
g_strdup (new_charset), g_free);
gtk_object_set_data (GTK_OBJECT (menu), "activated_item", item);
select_item (GTK_MENU_SHELL (menu), item);
return TRUE;
}
static void
other_charset_callback (char *new_charset, gpointer data)
{
char **out = data;
*out = new_charset;
}
static void
activate_other (GtkWidget *item, gpointer menu)
{
GtkWidget *window, *dialog;
char *old_charset, *new_charset;
window = gtk_widget_get_ancestor (item, GTK_TYPE_WINDOW);
old_charset = gtk_object_get_data (GTK_OBJECT (menu), "other_charset");
dialog = gnome_request_dialog (FALSE,
_("Enter the character set to use"),
old_charset, 0, other_charset_callback,
&new_charset, GTK_WINDOW (window));
gnome_dialog_run_and_close (GNOME_DIALOG (dialog));
if (new_charset) {
if (add_other_charset (menu, item, new_charset))
return;
g_free (new_charset);
}
/* Revert to previous selection */
select_item (GTK_MENU_SHELL (menu), gtk_object_get_data (GTK_OBJECT (menu), "activated_item"));
}
/**
* e_charset_picker_new:
* @default_charset: the default character set, or %NULL to use the
* locale character set.
*
* This creates an option menu widget and fills it in with a selection
* of available character sets. The @default_charset (or locale character
* set if @default_charset is %NULL) will be listed first, and selected
* by default (except that iso-8859-1 will always be used instead of
* US-ASCII). Any other character sets of the same language class as
* the default will be listed next, followed by the remaining character
* sets, a separator, and an "Other..." menu item, which can be used to
* select other charsets.
*
* Return value: an option menu widget, filled in and with signals
* attached.
*/
GtkWidget *
e_charset_picker_new (const char *default_charset)
{
GtkWidget *menu, *item;
int def, i;
char *locale_charset;
g_get_charset (&locale_charset);
if (!g_strcasecmp (locale_charset, "US-ASCII"))
locale_charset = "iso-8859-1";
if (!default_charset)
default_charset = locale_charset;
for (def = 0; def < num_charsets; def++) {
if (!g_strcasecmp (charsets[def].name, default_charset))
break;
}
menu = gtk_menu_new ();
for (i = 0; i < num_charsets; i++) {
item = add_charset (menu, &charsets[i], FALSE);
if (i == def) {
activate (item, menu);
select_item (GTK_MENU_SHELL (menu), item);
}
}
/* do the Unknown/Other section */
gtk_menu_append (GTK_MENU (menu), gtk_menu_item_new ());
if (def == num_charsets) {
ECharset other = { NULL, E_CHARSET_UNKNOWN, NULL };
/* Add an entry for @default_charset */
other.name = g_strdup (default_charset);
item = add_charset (menu, &other, TRUE);
activate (item, menu);
select_item (GTK_MENU_SHELL (menu), item);
gtk_object_set_data_full (GTK_OBJECT (menu), "other_charset",
g_strdup (default_charset), g_free);
def++;
}
item = gtk_menu_item_new_with_label (_("Other..."));
gtk_signal_connect (GTK_OBJECT (item), "activate",
GTK_SIGNAL_FUNC (activate_other), menu);
gtk_menu_append (GTK_MENU (menu), item);
gtk_widget_show_all (menu);
return menu;
}
/**
* e_charset_picker_get_charset:
* @menu: a character set menu from e_charset_picker_new()
*
* Return value: the currently-selected character set in @picker,
* which must be freed with g_free().
**/
char *
e_charset_picker_get_charset (GtkWidget *menu)
{
GtkWidget *item;
char *charset;
g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
item = gtk_menu_get_active (GTK_MENU (menu));
charset = gtk_object_get_data (GTK_OBJECT (item), "charset");
return g_strdup (charset);
}
/**
* e_charset_picker_dialog:
* @title: title for the dialog box
* @prompt: prompt string for the dialog box
* @default_charset: as for e_charset_picker_new()
* @parent: a parent window for the dialog box, or %NULL
*
* This creates a new dialog box with the given @title and @prompt and
* a character set picker menu. It then runs the dialog and returns
* the selected character set, or %NULL if the user clicked "Cancel".
*
* Return value: the selected character set (which must be freed with
* g_free()), or %NULL.
**/
char *
e_charset_picker_dialog (const char *title, const char *prompt,
const char *default_charset, GtkWindow *parent)
{
GnomeDialog *dialog;
GtkWidget *label, *omenu, *picker;
int button;
char *charset;
dialog = GNOME_DIALOG (gnome_dialog_new (title, GNOME_STOCK_BUTTON_OK,
GNOME_STOCK_BUTTON_CANCEL,
NULL));
if (parent)
gnome_dialog_set_parent (dialog, parent);
label = gtk_label_new (prompt);
gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.0);
picker = e_charset_picker_new (default_charset);
omenu = gtk_option_menu_new ();
gtk_option_menu_set_menu (GTK_OPTION_MENU (omenu), picker);
gtk_container_set_border_width (GTK_CONTAINER (dialog->vbox), 4);
gtk_box_pack_start (GTK_BOX (dialog->vbox), label, FALSE, FALSE, 4);
gtk_box_pack_start (GTK_BOX (dialog->vbox), omenu, FALSE, FALSE, 4);
gtk_widget_show_all (GTK_WIDGET (dialog));
button = gnome_dialog_run (dialog);
if (button == 0)
charset = e_charset_picker_get_charset (picker);
else
charset = NULL;
gnome_dialog_close (dialog);
return charset;
}
/**
* e_charset_picker_bonobo_ui_populate:
* @uic: Bonobo UI Component
* @default_charset: the default character set, or %NULL to use the
* locale character set.
* @cb: Callback function
* @user_data: data to be passed to the callback.
*
* This creates a Bonobo UI menu and fills it in with a selection
* of available character sets. The @default_charset (or locale character
* set if @default_charset is %NULL) will be listed first, and selected
* by default (except that iso-8859-1 will always be used instead of
* US-ASCII). Any other character sets of the same language class as
* the default will be listed next, followed by the remaining character
* sets.
**/
void
e_charset_picker_bonobo_ui_populate (BonoboUIComponent *uic, const char *default_charset,
BonoboUIListenerFn cb, gpointer user_data)
{
char *locale_charset, *encoded_label, *label;
GString *menuitems;
int def, i;
g_get_charset (&locale_charset);
if (!g_strcasecmp (locale_charset, "US-ASCII"))
locale_charset = "iso-8859-1";
if (!default_charset)
default_charset = locale_charset;
for (def = 0; def < num_charsets; def++) {
if (!g_strcasecmp (charsets[def].name, default_charset))
break;
}
label = g_strdup (_("Character Encoding"));
encoded_label = bonobo_ui_util_encode_str (label);
menuitems = g_string_new ("");
g_string_sprintf (menuitems, "<submenu name=\"ECharsetPicker\" label=\"%s\">\n", encoded_label);
g_free (encoded_label);
g_free (label);
for (i = 0; i < num_charsets; i++) {
char *command, *label, *encoded_label;
if (charsets[i].subclass) {
label = g_strdup_printf ("%s, %s (%s)",
_(classnames[charsets[i].class]),
_(charsets[i].subclass),
charsets[i].name);
} else {
label = g_strdup_printf ("%s (%s)",
_(classnames[charsets[i].class]),
charsets[i].name);
}
encoded_label = bonobo_ui_util_encode_str (label);
g_free (label);
command = g_strdup_printf ("<cmd name=\"Charset-%s\" label=\"%s\" type=\"radio\""
" group=\"charset_picker\" state=\"%d\"/>\n",
charsets[i].name, encoded_label, i == def);
bonobo_ui_component_set (uic, "/commands", command, NULL);
g_free (command);
g_string_sprintfa (menuitems, " <menuitem name=\"Charset-%s\" verb=\"\"/>\n",
charsets[i].name);
g_free (encoded_label);
label = g_strdup_printf ("Charset-%s", charsets[i].name);
bonobo_ui_component_add_listener (uic, label, cb, user_data);
g_free (label);
}
if (def == num_charsets) {
char *command, *label, *encoded_label;
label = g_strdup_printf ("%s (%s)", _("Unknown"), default_charset);
encoded_label = bonobo_ui_util_encode_str (label);
g_free (label);
command = g_strdup_printf ("<cmd name=\"Charset-%s\" label=\"%s\" type=\"radio\""
" group=\"charset_picker\" state=\"1\"/>\n",
default_charset, encoded_label);
bonobo_ui_component_set (uic, "/commands", command, NULL);
g_free (command);
g_string_append (menuitems, " <separator/>\n");
g_string_sprintfa (menuitems, " <menuitem name=\"Charset-%s\" verb=\"\"/>\n",
default_charset);
g_free (encoded_label);
label = g_strdup_printf ("Charset-%s", default_charset);
bonobo_ui_component_add_listener (uic, label, cb, user_data);
g_free (label);
}
g_string_append (menuitems, "</submenu>\n");
bonobo_ui_component_set (uic, "/menu/Edit", menuitems->str, NULL);
g_string_free (menuitems, TRUE);
}
