path: root/src/messageview.c

/*
 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
 * Copyright (C) 1999-2005 Hiroyuki Yamamoto
 *
 * 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.
 */

#include "defs.h"

#include <glib.h>
#include <glib/gi18n.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtknotebook.h>
#include <gtk/gtkvbox.h>
#include <gtk/gtkcontainer.h>
#include <gtk/gtkwindow.h>
#include <gtk/gtktextview.h>
#include <gtk/gtkmenu.h>
#include <gtk/gtkmenuitem.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>

#include "main.h"
#include "messageview.h"
#include "message_search.h"
#include "headerview.h"
#include "textview.h"
#include "imageview.h"
#include "mimeview.h"
#include "menu.h"
#include "about.h"
#include "filesel.h"
#include "sourcewindow.h"
#include "addressbook.h"
#include "alertpanel.h"
#include "inputdialog.h"
#include "manage_window.h"
#include "procmsg.h"
#include "procheader.h"
#include "procmime.h"
#include "account.h"
#include "action.h"
#include "prefs_common.h"
#include "prefs_account.h"
#include "prefs_filter.h"
#include "gtkutils.h"
#include "utils.h"
#include "rfc2015.h"

static GList *messageview_list = NULL;

static void messageview_change_view_type(MessageView		*messageview,
					 MessageType		 type);
static void messageview_destroy_cb	(GtkWidget		*widget,
					 MessageView		*messageview);
static void messageview_size_allocate_cb(GtkWidget		*widget,
					 GtkAllocation		*allocation);
static void messageview_switch_page_cb	(GtkNotebook		*notebook,
					 GtkNotebookPage	*page,
					 guint			 page_num,
					 MessageView		*messageview);
static gboolean key_pressed		(GtkWidget		*widget,
					 GdkEventKey		*event,
					 MessageView		*messageview);

static void save_as_cb			(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);
static void print_cb			(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);
static void close_cb			(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);
static void copy_cb			(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);
static void allsel_cb			(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);
static void search_cb			(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);

static void set_charset_cb		(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);
static void view_source_cb		(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);
static void show_all_header_cb		(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);

static void compose_cb			(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);
static void reply_cb			(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);
static void reedit_cb			(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);

static void addressbook_open_cb		(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);
static void add_address_cb		(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);
static void create_filter_cb		(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);

static void about_cb			(gpointer	 data,
					 guint		 action,
					 GtkWidget	*widget);

static GtkItemFactoryEntry msgview_entries[] =
{
	{N_("/_File"),			NULL, NULL, 0, "<Branch>"},
	{N_("/_File/_Save as..."),	NULL, save_as_cb, 0, NULL},
	{N_("/_File/_Print..."),	NULL, print_cb, 0, NULL},
	{N_("/_File/---"),		NULL, NULL, 0, "<Separator>"},
	{N_("/_File/_Close"),		NULL, close_cb, 0, NULL},

	{N_("/_Edit"),			NULL, NULL, 0, "<Branch>"},
	{N_("/_Edit/_Copy"),		NULL, copy_cb, 0, NULL},
	{N_("/_Edit/Select _all"),	NULL, allsel_cb, 0, NULL},
	{N_("/_Edit/---"),		NULL, NULL, 0, "<Separator>"},
	{N_("/_Edit/_Find in current message..."),
					NULL, search_cb, 0, NULL},

	{N_("/_View"),			NULL, NULL, 0, "<Branch>"},

#define CODESET_SEPARATOR \
	{N_("/_View/_Code set/---"),	NULL, NULL, 0, "<Separator>"}
#define CODESET_ACTION(action) \
	NULL, set_charset_cb, action, "/View/Code set/Auto detect"

	{N_("/_View/_Code set"),	NULL, NULL, 0, "<Branch>"},
	{N_("/_View/_Code set/_Auto detect"),
					NULL, set_charset_cb, C_AUTO, "<RadioItem>"},
	CODESET_SEPARATOR,
	{N_("/_View/_Code set/7bit ascii (US-ASC_II)"),
	 CODESET_ACTION(C_US_ASCII)},

	{N_("/_View/_Code set/Unicode (_UTF-8)"),
	 CODESET_ACTION(C_UTF_8)},
	CODESET_SEPARATOR,
	{N_("/_View/_Code set/Western European (ISO-8859-_1)"),
	 CODESET_ACTION(C_ISO_8859_1)},
	{N_("/_View/_Code set/Western European (ISO-8859-15)"),
	 CODESET_ACTION(C_ISO_8859_15)},
	CODESET_SEPARATOR,
	{N_("/_View/_Code set/Central European (ISO-8859-_2)"),
	 CODESET_ACTION(C_ISO_8859_2)},
	CODESET_SEPARATOR,
	{N_("/_View/_Code set/_Baltic (ISO-8859-13)"),
	 CODESET_ACTION(C_ISO_8859_13)},
	{N_("/_View/_Code set/Baltic (ISO-8859-_4)"),
	 CODESET_ACTION(C_ISO_8859_4)},
	CODESET_SEPARATOR,
	{N_("/_View/_Code set/Greek (ISO-8859-_7)"),
	 CODESET_ACTION(C_ISO_8859_7)},
	CODESET_SEPARATOR,
	{N_("/_View/_Code set/Turkish (ISO-8859-_9)"),
	 CODESET_ACTION(C_ISO_8859_9)},
	CODESET_SEPARATOR,
	{N_("/_View/_Code set/Cyrillic (ISO-8859-_5)"),
	 CODESET_ACTION(C_ISO_8859_5)},
	{N_("/_View/_Code set/Cyrillic (KOI8-_R)"),
	 CODESET_ACTION(C_KOI8_R)},
	{N_("/_View/_Code set/Cyrillic (KOI8-U)"),
	 CODESET_ACTION(C_KOI8_U)},
	{N_("/_View/_Code set/Cyrillic (Windows-1251)"),
	 CODESET_ACTION(C_CP1251)},
	CODESET_SEPARATOR,
	{N_("/_View/_Code set/Japanese (ISO-2022-_JP)"),
	 CODESET_ACTION(C_ISO_2022_JP)},
	{N_("/_View/_Code set/Japanese (ISO-2022-JP-2)"),
	 CODESET_ACTION(C_ISO_2022_JP_2)},
	{N_("/_View/_Code set/Japanese (_EUC-JP)"),
	 CODESET_ACTION(C_EUC_JP)},
	{N_("/_View/_Code set/Japanese (_Shift__JIS)"),
	 CODESET_ACTION(C_SHIFT_JIS)},
	CODESET_SEPARATOR,
	{N_("/_View/_Code set/Simplified Chinese (_GB2312)"),
	 CODESET_ACTION(C_GB2312)},
	{N_("/_View/_Code set/Traditional Chinese (_Big5)"),
	 CODESET_ACTION(C_BIG5)},
	{N_("/_View/_Code set/Traditional Chinese (EUC-_TW)"),
	 CODESET_ACTION(C_EUC_TW)},
	{N_("/_View/_Code set/Chinese (ISO-2022-_CN)"),
	 CODESET_ACTION(C_ISO_2022_CN)},
	CODESET_SEPARATOR,
	{N_("/_View/_Code set/Korean (EUC-_KR)"),
	 CODESET_ACTION(C_EUC_KR)},
	{N_("/_View/_Code set/Korean (ISO-2022-KR)"),
	 CODESET_ACTION(C_ISO_2022_KR)},
	CODESET_SEPARATOR,
	{N_("/_View/_Code set/Thai (TIS-620)"),
	 CODESET_ACTION(C_TIS_620)},
	{N_("/_View/_Code set/Thai (Windows-874)"),
	 CODESET_ACTION(C_WINDOWS_874)},

#undef CODESET_SEPARATOR
#undef CODESET_ACTION

	{N_("/_View/---"),		NULL, NULL, 0, "<Separator>"},
	{N_("/_View/Mess_age source"),	NULL, view_source_cb, 0, NULL},
	{N_("/_View/Show all _header"),	NULL, show_all_header_cb, 0, "<ToggleItem>"},

	{N_("/_Message"),		NULL, NULL, 0, "<Branch>"},
	{N_("/_Message/Compose _new message"),
					NULL, compose_cb, 0, NULL},
	{N_("/_Message/---"),		NULL, NULL, 0, "<Separator>"},
	{N_("/_Message/_Reply"),	NULL, reply_cb, COMPOSE_REPLY, NULL},
	{N_("/_Message/Repl_y to/_all"),
					NULL, reply_cb, COMPOSE_REPLY_TO_ALL, NULL},
	{N_("/_Message/Repl_y to/_sender"),
					NULL, reply_cb, COMPOSE_REPLY_TO_SENDER, NULL},
	{N_("/_Message/Repl_y to/mailing _list"),
					NULL, reply_cb, COMPOSE_REPLY_TO_LIST, NULL},
	{N_("/_Message/---"),		NULL, NULL, 0, "<Separator>"},
	{N_("/_Message/_Forward"),	NULL, reply_cb, COMPOSE_FORWARD, NULL},
	{N_("/_Message/For_ward as attachment"),
					NULL, reply_cb, COMPOSE_FORWARD_AS_ATTACH, NULL},
	{N_("/_Message/Redirec_t"),	NULL, reply_cb, COMPOSE_REDIRECT, NULL},
	{N_("/_Message/---"),		NULL, NULL, 0, "<Separator>"},
	{N_("/_Message/Re-_edit"),	NULL, reedit_cb, 0, NULL},

	{N_("/_Tools"),			NULL, NULL, 0, "<Branch>"},
	{N_("/_Tools/_Address book"),	NULL, addressbook_open_cb, 0, NULL},
	{N_("/_Tools/Add sender to address boo_k"),
					NULL, add_address_cb, 0, NULL},
	{N_("/_Tools/---"),		NULL, NULL, 0, "<Separator>"},
	{N_("/_Tools/_Create filter rule"),
					NULL, NULL, 0, "<Branch>"},
	{N_("/_Tools/_Create filter rule/_Automatically"),
					NULL, create_filter_cb, FILTER_BY_AUTO, NULL},
	{N_("/_Tools/_Create filter rule/by _From"),
					NULL, create_filter_cb, FILTER_BY_FROM, NULL},
	{N_("/_Tools/_Create filter rule/by _To"),
					NULL, create_filter_cb, FILTER_BY_TO, NULL},
	{N_("/_Tools/_Create filter rule/by _Subject"),
					NULL, create_filter_cb, FILTER_BY_SUBJECT, NULL},
	{N_("/_Tools/---"),		NULL, NULL, 0, "<Separator>"},
	{N_("/_Tools/Actio_ns"),	NULL, NULL, 0, "<Branch>"},

	{N_("/_Help"),			NULL, NULL, 0, "<Branch>"},
	{N_("/_Help/_About"),		NULL, about_cb, 0, NULL}
};


MessageView *messageview_create(void)
{
	MessageView *messageview;
	GtkWidget *vbox;
	GtkWidget *notebook;
	HeaderView *headerview;
	TextView *textview;
	MimeView *mimeview;

	debug_print(_("Creating message view...\n"));
	messageview = g_new0(MessageView, 1);

	messageview->type = MVIEW_TEXT;

	headerview = headerview_create();

	textview = textview_create();
	textview->messageview = messageview;

	mimeview = mimeview_create();
	mimeview->textview = textview_create();
	mimeview->textview->messageview = messageview;
	mimeview->imageview = imageview_create();
	mimeview->imageview->messageview = messageview;
	mimeview->messageview = messageview;

	notebook = gtk_notebook_new();
	gtk_notebook_set_show_border(GTK_NOTEBOOK(notebook), FALSE);
	gtk_notebook_set_show_tabs(GTK_NOTEBOOK(notebook), FALSE);
	gtk_notebook_set_scrollable(GTK_NOTEBOOK(notebook), TRUE);
	gtk_widget_show(notebook);

	gtk_container_add(GTK_CONTAINER(notebook), GTK_WIDGET_PTR(textview));
	gtk_notebook_set_tab_label_text
		(GTK_NOTEBOOK(notebook), GTK_WIDGET_PTR(textview), _("Text"));

	gtk_container_add(GTK_CONTAINER(notebook), GTK_WIDGET_PTR(mimeview));
	gtk_notebook_set_tab_label_text(GTK_NOTEBOOK(notebook),
					GTK_WIDGET_PTR(mimeview),
					_("Attachments"));

	gtk_notebook_set_current_page(GTK_NOTEBOOK(notebook), 0);
	gtk_widget_show_all(notebook);

	vbox = gtk_vbox_new(FALSE, 0);
	gtk_box_pack_start(GTK_BOX(vbox), GTK_WIDGET_PTR(headerview),
			   FALSE, FALSE, 0);
	gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 0);
	gtk_widget_show(vbox);

	/* to remove without destroyed */
	gtk_widget_ref(GTK_WIDGET_PTR(mimeview->textview));
	gtk_widget_ref(GTK_WIDGET_PTR(mimeview->imageview));

	g_signal_connect(G_OBJECT(notebook), "switch_page",
			 G_CALLBACK(messageview_switch_page_cb), messageview);

	messageview->vbox        = vbox;
	messageview->notebook    = notebook;

	messageview->new_window  = FALSE;
	messageview->window      = NULL;
	messageview->window_vbox = NULL;
	messageview->body_vbox   = NULL;

	messageview->headerview  = headerview;
	messageview->textview    = textview;
	messageview->mimeview    = mimeview;

	messageview->statusbar     = NULL;
	messageview->statusbar_cid = 0;

	messageview->current_page = 0;

	return messageview;
}

MessageView *messageview_create_with_new_window(void)
{
	MessageView *msgview;
	GtkWidget *window;
	GtkWidget *window_vbox;
	GtkWidget *body_vbox;
	GtkWidget *menubar;
	GtkItemFactory *ifactory;
	GtkWidget *statusbar;
	guint n_menu_entries;

	window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
	gtk_window_set_title(GTK_WINDOW(window), _("Sylpheed - Message View"));
	gtk_window_set_wmclass(GTK_WINDOW(window), "message_view", "Sylpheed");
	gtk_window_set_policy(GTK_WINDOW(window), TRUE, TRUE, FALSE);
	gtk_widget_set_size_request(window, prefs_common.msgwin_width,
				    prefs_common.msgwin_height);

	msgview = messageview_create();

	window_vbox = gtk_vbox_new(FALSE, 0);
	gtk_container_add(GTK_CONTAINER(window), window_vbox);

	g_signal_connect(G_OBJECT(window), "size_allocate",
			 G_CALLBACK(messageview_size_allocate_cb),
			 msgview);
	g_signal_connect(G_OBJECT(window), "destroy",
			 G_CALLBACK(messageview_destroy_cb), msgview);
	g_signal_connect(G_OBJECT(window), "key_press_event",
			 G_CALLBACK(key_pressed), msgview);
	MANAGE_WINDOW_SIGNALS_CONNECT(window);

	n_menu_entries = sizeof(msgview_entries) / sizeof (msgview_entries[0]);
	menubar = menubar_create(window, msgview_entries, n_menu_entries,
				 "<MessageView>", msgview);
#warning FIXME_GTK2
#if 0
	menu_factory_copy_rc("<Main>", "<MessageView>");
#endif
	gtk_box_pack_start(GTK_BOX(window_vbox), menubar, FALSE, TRUE, 0);

	body_vbox = gtk_vbox_new(FALSE, BORDER_WIDTH);
	gtk_container_set_border_width(GTK_CONTAINER(body_vbox), BORDER_WIDTH);
	gtk_box_pack_start(GTK_BOX(window_vbox), body_vbox, TRUE, TRUE, 0);

	gtk_box_pack_start(GTK_BOX(body_vbox), GTK_WIDGET_PTR(msgview),
			   TRUE, TRUE, 0);
	gtk_widget_grab_focus(msgview->textview->text);

	statusbar = gtk_statusbar_new();
	gtk_box_pack_end(GTK_BOX(body_vbox), statusbar, FALSE, FALSE, 0);
	msgview->statusbar = statusbar;
	msgview->statusbar_cid = gtk_statusbar_get_context_id
		(GTK_STATUSBAR(statusbar), "Message View");

	gtk_widget_show_all(window);

	msgview->new_window = TRUE;
	msgview->window = window;
	msgview->window_vbox = window_vbox;
	msgview->body_vbox = body_vbox;
	msgview->visible = TRUE;

	messageview_init(msgview);

	ifactory = gtk_item_factory_from_widget(menubar);
	action_update_msgview_menu(ifactory, msgview);

	messageview_list = g_list_append(messageview_list, msgview);

	return msgview;
}

void messageview_init(MessageView *messageview)
{
	headerview_init(messageview->headerview);
	textview_init(messageview->textview);
	mimeview_init(messageview->mimeview);
	/* messageview_set_font(messageview); */
}

GList *messageview_get_window_list(void)
{
	return messageview_list;
}

gint messageview_show(MessageView *messageview, MsgInfo *msginfo,
		      gboolean all_headers)
{
	gchar *file;
	MimeInfo *mimeinfo;

	g_return_val_if_fail(msginfo != NULL, -1);

	mimeinfo = procmime_scan_message(msginfo);
	if (!mimeinfo) {
		messageview_change_view_type(messageview, MVIEW_TEXT);
		textview_show_error(messageview->textview);
		return -1;
	}

	file = procmsg_get_message_file_path(msginfo);
	if (!file) {
		g_warning("can't get message file path.\n");
		procmime_mimeinfo_free_all(mimeinfo);
		messageview_change_view_type(messageview, MVIEW_TEXT);
		textview_show_error(messageview->textview);
		return -1;
	}

	if (messageview->msginfo != msginfo) {
		procmsg_msginfo_free(messageview->msginfo);
		messageview->msginfo = procmsg_msginfo_get_full_info(msginfo);
		if (!messageview->msginfo)
			messageview->msginfo = procmsg_msginfo_copy(msginfo);
	}
	headerview_show(messageview->headerview, messageview->msginfo);

	textview_set_all_headers(messageview->textview, all_headers);
	textview_set_all_headers(messageview->mimeview->textview, all_headers);

	if (mimeinfo->mime_type != MIME_TEXT &&
	    mimeinfo->mime_type != MIME_TEXT_HTML) {
		messageview_change_view_type(messageview, MVIEW_MIME);
		mimeview_show_message(messageview->mimeview, mimeinfo, file);
	} else {
		messageview_change_view_type(messageview, MVIEW_TEXT);
		textview_show_message(messageview->textview, mimeinfo, file);
		procmime_mimeinfo_free_all(mimeinfo);
	}

	g_free(file);

	return 0;
}

static void messageview_change_view_type(MessageView *messageview,
					 MessageType type)
{
	GtkWidget *notebook = messageview->notebook;

	if (messageview->type == type) return;

	if (type == MVIEW_MIME) {
		gtk_notebook_set_show_tabs(GTK_NOTEBOOK(notebook), TRUE);
		gtk_notebook_set_current_page(GTK_NOTEBOOK(notebook),
					      messageview->current_page);
	} else if (type == MVIEW_TEXT) {
		gint current_page = messageview->current_page;

		gtk_notebook_set_show_tabs(GTK_NOTEBOOK(notebook), FALSE);
		gtk_notebook_set_current_page(GTK_NOTEBOOK(notebook), 0);
		messageview->current_page = current_page;
		mimeview_clear(messageview->mimeview);
	} else
		return;

	messageview->type = type;
}

void messageview_clear(MessageView *messageview)
{
	procmsg_msginfo_free(messageview->msginfo);
	messageview->msginfo = NULL;
	messageview_change_view_type(messageview, MVIEW_TEXT);
	headerview_clear(messageview->headerview);
	textview_clear(messageview->textview);
	mimeview_clear(messageview->mimeview);
}

void messageview_destroy(MessageView *messageview)
{
	GtkWidget *textview  = GTK_WIDGET_PTR(messageview->mimeview->textview);
	GtkWidget *imageview = GTK_WIDGET_PTR(messageview->mimeview->imageview);

	messageview_list = g_list_remove(messageview_list, messageview);

	headerview_destroy(messageview->headerview);
	textview_destroy(messageview->textview);
	mimeview_destroy(messageview->mimeview);

	procmsg_msginfo_free(messageview->msginfo);

	g_free(messageview);

	gtk_widget_unref(textview);
	gtk_widget_unref(imageview);
}

void messageview_quote_color_set(void)
{
}

void messageview_set_font(MessageView *messageview)
{
	textview_set_font(messageview->textview, NULL);
}

TextView *messageview_get_current_textview(MessageView *messageview)
{
	TextView *text = NULL;

	if (messageview->type == MVIEW_TEXT)
		text = messageview->textview;
	else if (messageview->type == MVIEW_MIME) {
		if (gtk_notebook_get_current_page
			(GTK_NOTEBOOK(messageview->notebook)) == 0)
			text = messageview->textview;
		else if (messageview->mimeview->type == MIMEVIEW_TEXT)
			text = messageview->mimeview->textview;
	}

	return text;
}

MimeInfo *messageview_get_selected_mime_part(MessageView *messageview)
{
	if (messageview->type == MVIEW_MIME)
		return mimeview_get_selected_part(messageview->mimeview);

	return NULL;
}

void messageview_copy_clipboard(MessageView *messageview)
{
	TextView *text;

	text = messageview_get_current_textview(messageview);
	if (text) {
		GtkTextView *textview = GTK_TEXT_VIEW(text->text);
		GtkTextBuffer *buffer;
		GtkClipboard *clipboard;

		buffer = gtk_text_view_get_buffer(textview);
		clipboard = gtk_clipboard_get(GDK_SELECTION_CLIPBOARD);
		gtk_text_buffer_copy_clipboard(buffer, clipboard);
	}
}

void messageview_select_all(MessageView *messageview)
{
	TextView *text;

	text = messageview_get_current_textview(messageview);
	if (text) {
		GtkTextView *textview = GTK_TEXT_VIEW(text->text);
		GtkTextBuffer *buffer;
		GtkTextIter start, end;

		buffer = gtk_text_view_get_buffer(textview);
		gtk_text_buffer_get_bounds(buffer, &start, &end);
		gtk_text_buffer_select_range(buffer, &start, &end);
	}
}

void messageview_set_position(MessageView *messageview, gint pos)
{
	textview_set_position(messageview->textview, pos);
}

gboolean messageview_search_string(MessageView *messageview, const gchar *str,
				   gboolean case_sens)
{
	return textview_search_string(messageview->textview, str, case_sens);
	return FALSE;
}

gboolean messageview_search_string_backward(MessageView *messageview,
					    const gchar *str,
					    gboolean case_sens)
{
	return textview_search_string_backward(messageview->textview,
					       str, case_sens);
	return FALSE;
}

gboolean messageview_is_visible(MessageView *messageview)
{
	return messageview->visible;
}

void messageview_save_as(MessageView *messageview)
{
	gchar *filename = NULL;
	MsgInfo *msginfo;
	gchar *src, *dest;

	if (!messageview->msginfo) return;
	msginfo = messageview->msginfo;

	if (msginfo->subject) {
		Xstrdup_a(filename, msginfo->subject, return);
		subst_for_filename(filename);
	}

	dest = filesel_save_as(filename);
	if (!dest) return;

	src = procmsg_get_message_file(msginfo);
	if (copy_file(src, dest, TRUE) < 0) {
		alertpanel_error(_("Can't save the file `%s'."),
				 g_basename(dest));
	}
	g_free(src);

	g_free(dest);
}

static void messageview_destroy_cb(GtkWidget *widget, MessageView *messageview)
{
	messageview_destroy(messageview);
}

static void messageview_size_allocate_cb(GtkWidget *widget,
					 GtkAllocation *allocation)
{
	g_return_if_fail(allocation != NULL);

	prefs_common.msgwin_width  = allocation->width;
	prefs_common.msgwin_height = allocation->height;
}

static void messageview_switch_page_cb(GtkNotebook *notebook,
				       GtkNotebookPage *page, guint page_num,
				       MessageView *messageview)
{
	messageview->current_page = page_num;
}

static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event,
			    MessageView *messageview)
{
	if (event && event->keyval == GDK_Escape && messageview->window)
		gtk_widget_destroy(messageview->window);
	return FALSE;
}

static void save_as_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	messageview_save_as(messageview);
}

static void print_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	gchar *cmdline;
	gchar *p;

	if (!messageview->msginfo) return;

	cmdline = input_dialog(_("Print"),
			       _("Enter the print command line:\n"
				 "(`%s' will be replaced with file name)"),
			       prefs_common.print_cmd);
	if (!cmdline) return;
	if (!(p = strchr(cmdline, '%')) || *(p + 1) != 's' ||
	    strchr(p + 2, '%')) {
		alertpanel_error(_("Print command line is invalid:\n`%s'"),
				 cmdline);
		g_free(cmdline);
		return;
	}

	procmsg_print_message(messageview->msginfo, cmdline);
	g_free(cmdline);
}

static void close_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	gtk_widget_destroy(messageview->window);
}

static void copy_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	messageview_copy_clipboard(messageview);
}

static void allsel_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	messageview_select_all(messageview);
}

static void search_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	message_search(messageview);
}

static void set_charset_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	const gchar *charset;

	if (GTK_CHECK_MENU_ITEM(widget)->active) {
		charset = conv_get_charset_str((CharSet)action);
		g_free(messageview->forced_charset);
		messageview->forced_charset = g_strdup(charset);
		messageview_show(messageview, messageview->msginfo, FALSE);
	}
}

static void view_source_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	SourceWindow *srcwin;

	if (!messageview->msginfo) return;

	srcwin = source_window_create();
	source_window_show_msg(srcwin, messageview->msginfo);
	source_window_show(srcwin);
}

static void show_all_header_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	MsgInfo *msginfo = messageview->msginfo;

	if (!msginfo) return;
	messageview->msginfo = NULL;
	messageview_show(messageview, msginfo,
			 GTK_CHECK_MENU_ITEM(widget)->active);
	procmsg_msginfo_free(msginfo);
}

static void compose_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	PrefsAccount *ac = NULL;
	FolderItem *item = NULL;

	if (messageview->msginfo)
		item = messageview->msginfo->folder;

	if (item) {
		ac = account_find_from_item(item);
		if (ac && ac->protocol == A_NNTP &&
		    FOLDER_TYPE(item->folder) == F_NEWS) {
			compose_new(ac, item, item->path, NULL);
			return;
		}
	}

	compose_new(ac, item, NULL, NULL);
}

static void reply_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	GSList *mlist = NULL;
	MsgInfo *msginfo;
	gchar *text = NULL;
	ComposeMode mode = (ComposeMode)action;

	msginfo = messageview->msginfo;
	mlist = g_slist_append(NULL, msginfo);

	text = gtkut_text_view_get_selection
		(GTK_TEXT_VIEW(messageview->textview->text));
	if (text && *text == '\0') {
		g_free(text);
		text = NULL;
	}

	if (!COMPOSE_QUOTE_MODE(mode))
		mode |= prefs_common.reply_with_quote
			? COMPOSE_WITH_QUOTE : COMPOSE_WITHOUT_QUOTE;

	switch (COMPOSE_MODE(mode)) {
	case COMPOSE_REPLY:
	case COMPOSE_REPLY_TO_SENDER:
	case COMPOSE_REPLY_TO_ALL:
	case COMPOSE_REPLY_TO_LIST:
		compose_reply(msginfo, msginfo->folder, mode, text);
		break;
	case COMPOSE_FORWARD:
		compose_forward(mlist, msginfo->folder, FALSE, text);
		break;
	case COMPOSE_FORWARD_AS_ATTACH:
		compose_forward(mlist, msginfo->folder, TRUE, NULL);
		break;
	case COMPOSE_REDIRECT:
		compose_redirect(msginfo, msginfo->folder);
		break;
	default:
		g_warning("messageview.c: reply_cb(): invalid mode: %d\n",
			  mode);
	}

	/* summary_set_marks_selected(summaryview); */
	g_free(text);
	g_slist_free(mlist);
}

static void reedit_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	MsgInfo *msginfo;

	if (!messageview->msginfo) return;
	msginfo = messageview->msginfo;
	if (!msginfo->folder) return;
	if (msginfo->folder->stype != F_OUTBOX &&
	    msginfo->folder->stype != F_DRAFT &&
	    msginfo->folder->stype != F_QUEUE) return;

	compose_reedit(msginfo);
}

static void addressbook_open_cb(gpointer data, guint action, GtkWidget *widget)
{
	addressbook_open(NULL);
}

static void add_address_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	MsgInfo *msginfo;
	gchar *from;

	if (!messageview->msginfo) return;
	msginfo = messageview->msginfo;
	Xstrdup_a(from, msginfo->from, return);
	eliminate_address_comment(from);
	extract_address(from);
	addressbook_add_contact(msginfo->fromname, from, NULL);
}

static void create_filter_cb(gpointer data, guint action, GtkWidget *widget)
{
	MessageView *messageview = (MessageView *)data;
	gchar *header = NULL;
	gchar *key = NULL;

	if (!messageview->msginfo) return;

	procmsg_get_filter_keyword(messageview->msginfo, &header, &key,
				   (PrefsFilterType)action);
	prefs_filter_open(messageview->msginfo, header);

	g_free(header);
	g_free(key);
}

static void about_cb(gpointer data, guint action, GtkWidget *widget)
{
	about_show();
}