/*
* This program 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) version 3.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*
* Authors:
* Michael Zucchi <notzed@novell.com>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gtk/gtk.h>
#include <glib/gi18n-lib.h>
#include <gconf/gconf-client.h>
#include <string.h>
#include <stdio.h>
#include <em-format/em-format.h>
#include <mail/em-config.h>
#include <mail/em-format-hook.h>
void org_gnome_prefer_plain_multipart_alternative (gpointer ep, EMFormatHookTarget *t);
void org_gnome_prefer_plain_text_html (gpointer ep, EMFormatHookTarget *t);
GtkWidget *org_gnome_prefer_plain_config_mode (struct _EPlugin *epl, struct _EConfigHookItemFactoryData *data);
enum {
EPP_NORMAL,
EPP_PREFER,
EPP_TEXT
};
static GConfClient *epp_gconf = NULL;
static gint epp_mode = -1;
static gboolean epp_show_suppressed = TRUE;
static void
make_part_attachment (EMFormat *format, CamelStream *stream, CamelMimePart *part, gint i)
{
gint partidlen = format->part_id->len;
if (i != -1)
g_string_append_printf (format->part_id, ".alternative-prefer-plain.%d", i);
if (camel_content_type_is (camel_mime_part_get_content_type (part), "text", "html")) {
/* always show HTML as attachments and not inline */
camel_mime_part_set_disposition (part, "attachment");
if (!camel_mime_part_get_filename (part)) {
gchar *str = g_strdup_printf ("%s.html", _("attachment"));
camel_mime_part_set_filename (part, str);
g_free (str);
}
/* FIXME Not passing a GCancellable here. */
em_format_part_as (
format, stream, part,
"application/octet-stream", NULL);
} else if (i == -1 && CAMEL_IS_MIME_MESSAGE (part)) {
/* message was asked to be formatted as text/html;
might be for cases where message itself is a text/html part */
CamelMimePart *new_part;
CamelDataWrapper *content;
content = camel_medium_get_content (CAMEL_MEDIUM (part));
g_return_if_fail (content != NULL);
new_part = camel_mime_part_new ();
camel_medium_set_content (CAMEL_MEDIUM (new_part), content);
em_format_part (format, stream, new_part, NULL);
g_object_unref (new_part);
} else {
/* FIXME Not passing a GCancellable here. */
em_format_part (format, stream, part, NULL);
}
g_string_truncate (format->part_id, partidlen);
}
void
org_gnome_prefer_plain_text_html (gpointer ep, EMFormatHookTarget *t)
{
/* In text-only mode, all html output is suppressed for the first processing */
if (epp_mode != EPP_TEXT
|| strstr (t->format->part_id->str, ".alternative-prefer-plain.") != NULL
|| em_format_is_inline (t->format, t->format->part_id->str, t->part, &(t->item->handler)))
/* FIXME Not passing a GCancellable here. */
t->item->handler.old->handler (
t->format, t->stream, t->part,
t->item->handler.old, NULL, FALSE);
else if (epp_show_suppressed)
make_part_attachment (t->format, t->stream, t->part, -1);
}
static void
export_as_attachments (CamelMultipart *mp, EMFormat *format, CamelStream *stream, CamelMimePart *except)
{
gint i, nparts;
CamelMimePart *part;
if (!mp || !CAMEL_IS_MULTIPART (mp))
return;
nparts = camel_multipart_get_number (mp);
for (i = 0; i < nparts; i++) {
part = camel_multipart_get_part (mp, i);
if (part != except) {
CamelMultipart *multipart = (CamelMultipart *)camel_medium_get_content ((CamelMedium *)part);
if (CAMEL_IS_MULTIPART (multipart)) {
export_as_attachments (multipart, format, stream, except);
} else {
make_part_attachment (format, stream, part, i);
}
}
}
}
void
org_gnome_prefer_plain_multipart_alternative (gpointer ep, EMFormatHookTarget *t)
{
CamelMultipart *mp = (CamelMultipart *)camel_medium_get_content ((CamelMedium *)t->part);
CamelMimePart *part, *display_part = NULL, *calendar_part = NULL;
gint i, nparts, partidlen, displayid = 0, calendarid = 0;
/* FIXME: this part-id stuff is poking private data, needs api */
partidlen = t->format->part_id->len;
if (epp_mode == EPP_NORMAL) {
gboolean have_plain = FALSE;
/* Try to find text/html part even when not as last and force to show it.
Old handler will show the last part of multipart/alternate, but if we
can offer HTML, then offer it, regardless of position in multipart.
But do this when have only text/plain and text/html parts, not more.
*/
nparts = camel_multipart_get_number (mp);
for (i = 0; i < nparts; i++) {
CamelContentType *content_type;
part = camel_multipart_get_part (mp, i);
if (!part)
continue;
content_type = camel_mime_part_get_content_type (part);
if (camel_content_type_is (content_type, "text", "html")) {
displayid = i;
display_part = part;
if (have_plain)
break;
} else if (camel_content_type_is (content_type, "text", "plain")) {
have_plain = TRUE;
if (display_part)
break;
}
}
if (display_part && have_plain && nparts == 2) {
g_string_append_printf (t->format->part_id, ".alternative-prefer-plain.%d", displayid);
/* FIXME Not passing a GCancellable here. */
em_format_part_as (
t->format, t->stream,
display_part, "text/html", NULL);
g_string_truncate (t->format->part_id, partidlen);
} else {
/* FIXME Not passing a GCancellable here. */
t->item->handler.old->handler (
t->format, t->stream, t->part,
t->item->handler.old, NULL, FALSE);
}
return;
} else if (!CAMEL_IS_MULTIPART (mp)) {
em_format_format_source (t->format, t->stream, t->part, NULL);
return;
}
nparts = camel_multipart_get_number (mp);
for (i=0; i<nparts; i++) {
CamelContentType *ct;
part = camel_multipart_get_part (mp, i);
if (!part)
continue;
ct = camel_mime_part_get_content_type (part);
if (!display_part && camel_content_type_is (ct, "text", "plain")) {
displayid = i;
display_part = part;
} else if (!calendar_part && (camel_content_type_is (ct, "text", "calendar") || camel_content_type_is (ct, "text", "x-calendar"))) {
calendarid = i;
calendar_part = part;
}
}
/* if we found a text part, show it */
if (display_part) {
g_string_append_printf(t->format->part_id, ".alternative-prefer-plain.%d", displayid);
/* FIXME Not passing a GCancellable here. */
em_format_part_as (
t->format, t->stream,
display_part, "text/plain", NULL);
g_string_truncate (t->format->part_id, partidlen);
}
/* all other parts are attachments */
if (epp_show_suppressed)
export_as_attachments (mp, t->format, t->stream, display_part);
else if (calendar_part)
make_part_attachment (t->format, t->stream, calendar_part, calendarid);
g_string_truncate (t->format->part_id, partidlen);
}
static struct {
const gchar *key;
const gchar *label;
const gchar *description;
} epp_options[] = {
{ "normal", N_("Show HTML if present"), N_("Let Evolution choose the best part to show.") },
{ "prefer_plain", N_("Show plain text if present"), N_("Show plain text part, if present, otherwise let Evolution choose the best part to show.") },
{ "only_plain", N_("Only ever show plain text"), N_("Always show plain text part and make attachments from other parts, if requested.") },
};
static void
update_info_label (GtkWidget *info_label, guint mode)
{
gchar *str = g_strconcat ("<i>", _(epp_options[mode > 2 ? 0 : mode].description), "</i>", NULL);
gtk_label_set_markup (GTK_LABEL (info_label), str);
g_free (str);
}
static void
epp_mode_changed (GtkComboBox *dropdown, GtkWidget *info_label)
{
epp_mode = gtk_combo_box_get_active (dropdown);
if (epp_mode > 2)
epp_mode = 0;
gconf_client_set_string(epp_gconf, "/apps/evolution/eplugin/prefer_plain/mode", epp_options[epp_mode].key, NULL);
update_info_label (info_label, epp_mode);
}
static void
epp_show_suppressed_toggled (GtkToggleButton *check, gpointer data)
{
g_return_if_fail (check != NULL);
epp_show_suppressed = gtk_toggle_button_get_active (check);
gconf_client_set_bool (epp_gconf, "/apps/evolution/eplugin/prefer_plain/show_suppressed", epp_show_suppressed, NULL);
}
GtkWidget *
org_gnome_prefer_plain_config_mode (struct _EPlugin *epl, struct _EConfigHookItemFactoryData *data)
{
/*EMConfigTargetPrefs *ep = (EMConfigTargetPrefs *)data->target;*/
GtkComboBox *dropdown;
GtkCellRenderer *cell;
GtkListStore *store;
GtkWidget *dropdown_label, *info, *check;
guint i;
GtkTreeIter iter;
if (data->old)
return data->old;
check = gtk_check_button_new_with_mnemonic (_("Show s_uppressed HTML parts as attachments"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check), epp_show_suppressed);
gtk_widget_show (check);
g_signal_connect (check, "toggled", G_CALLBACK (epp_show_suppressed_toggled), NULL);
dropdown = (GtkComboBox *)gtk_combo_box_new ();
cell = gtk_cell_renderer_text_new ();
store = gtk_list_store_new (1, G_TYPE_STRING);
for (i = 0; i < G_N_ELEMENTS (epp_options); i++) {
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter, 0, _(epp_options[i].label), -1);
}
gtk_cell_layout_pack_start ((GtkCellLayout *)dropdown, cell, TRUE);
gtk_cell_layout_set_attributes((GtkCellLayout *)dropdown, cell, "text", 0, NULL);
gtk_combo_box_set_model (dropdown, (GtkTreeModel *)store);
/*gtk_combo_box_set_active(dropdown, -1);*/
gtk_combo_box_set_active (dropdown, epp_mode);
gtk_widget_show ((GtkWidget *)dropdown);
dropdown_label = gtk_label_new_with_mnemonic (_("HTML _Mode"));
gtk_widget_show (dropdown_label);
gtk_label_set_mnemonic_widget (GTK_LABEL (dropdown_label), (GtkWidget *)dropdown);
info = gtk_label_new (NULL);
gtk_misc_set_alignment (GTK_MISC (info), 0.0, 0.5);
gtk_label_set_line_wrap (GTK_LABEL (info), TRUE);
gtk_widget_show (info);
update_info_label (info, epp_mode);
g_signal_connect (dropdown, "changed", G_CALLBACK(epp_mode_changed), info);
g_object_get (data->parent, "n-rows", &i, NULL);
gtk_table_attach ((GtkTable *)data->parent, check, 0, 2, i, i + 1, GTK_FILL | GTK_EXPAND, 0, 0, 0);
gtk_table_attach ((GtkTable *)data->parent, dropdown_label, 0, 1, i + 1, i + 2, 0, 0, 0, 0);
gtk_table_attach ((GtkTable *)data->parent, (GtkWidget *)dropdown, 1, 2, i + 1, i + 2, GTK_FILL | GTK_EXPAND, 0, 0, 0);
gtk_table_attach ((GtkTable *)data->parent, info, 1, 2, i + 2, i + 3, GTK_FILL | GTK_EXPAND, 0, 0, 0);
/* since this isnt dynamic, we don't need to track each item */
return (GtkWidget *)dropdown;
}
gint e_plugin_lib_enable (EPlugin *ep, gint enable);
gint
e_plugin_lib_enable (EPlugin *ep, gint enable)
{
gchar *key;
gint i;
if (epp_gconf || epp_mode != -1)
return 0;
if (enable) {
GConfValue *val;
epp_gconf = gconf_client_get_default ();
key = gconf_client_get_string(epp_gconf, "/apps/evolution/eplugin/prefer_plain/mode", NULL);
if (key) {
for (i = 0; i < G_N_ELEMENTS (epp_options); i++) {
if (!strcmp (epp_options[i].key, key)) {
epp_mode = i;
break;
}
}
g_free (key);
} else {
epp_mode = 0;
}
val = gconf_client_get (epp_gconf, "/apps/evolution/eplugin/prefer_plain/show_suppressed", NULL);
if (val) {
epp_show_suppressed = gconf_value_get_bool (val);
gconf_value_free (val);
} else
epp_show_suppressed = TRUE;
} else {
if (epp_gconf) {
g_object_unref (epp_gconf);
epp_gconf = NULL;
}
}
return 0;
}
