/*
* e-cal-attachment-handler.c
*
* 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/>
*
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "e-cal-attachment-handler.h"
#include <glib/gi18n.h>
#include <libical/ical.h>
#include <libecal/e-cal-client.h>
#include <camel/camel.h>
#include <libedataserverui/e-source-selector.h>
#include <libedataserverui/e-client-utils.h>
#define E_CAL_ATTACHMENT_HANDLER_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE \
((obj), E_TYPE_CAL_ATTACHMENT_HANDLER, ECalAttachmentHandlerPrivate))
typedef struct _ImportContext ImportContext;
struct _ECalAttachmentHandlerPrivate {
gint placeholder;
};
struct _ImportContext {
ECalClient *client;
icalcomponent *component;
ECalClientSourceType source_type;
};
static gpointer parent_class;
static GType cal_attachment_handler_type;
static const gchar *ui =
"<ui>"
" <popup name='context'>"
" <placeholder name='custom-actions'>"
" <menuitem action='import-to-calendar'/>"
" <menuitem action='import-to-tasks'/>"
" </placeholder>"
" </popup>"
"</ui>";
static icalcomponent *
attachment_handler_get_component (EAttachment *attachment)
{
CamelDataWrapper *wrapper;
CamelMimePart *mime_part;
CamelStream *stream;
GByteArray *buffer;
icalcomponent *component;
const gchar *key = "__icalcomponent__";
component = g_object_get_data (G_OBJECT (attachment), key);
if (component != NULL)
return component;
if (e_attachment_get_loading (attachment) ||
e_attachment_get_saving (attachment))
return NULL;
mime_part = e_attachment_get_mime_part (attachment);
if (!CAMEL_IS_MIME_PART (mime_part))
return NULL;
buffer = g_byte_array_new ();
stream = camel_stream_mem_new ();
camel_stream_mem_set_byte_array (CAMEL_STREAM_MEM (stream), buffer);
wrapper = camel_medium_get_content (CAMEL_MEDIUM (mime_part));
camel_data_wrapper_decode_to_stream_sync (wrapper, stream, NULL, NULL);
g_object_unref (stream);
if (buffer->len > 0) {
const gchar *str;
/* ensure string being null-terminated */
g_byte_array_append (buffer, (const guint8 *) "", 1);
str = (const gchar *) buffer->data;
while (*str && g_ascii_isspace (*str))
str++;
if (g_ascii_strncasecmp (str, "BEGIN:", 6) == 0)
component = e_cal_util_parse_ics_string (str);
}
g_byte_array_free (buffer, TRUE);
if (component == NULL)
return NULL;
g_object_set_data_full (
G_OBJECT (attachment), key, component,
(GDestroyNotify) icalcomponent_free);
return component;
}
static gboolean
attachment_handler_update_objects (ECalClient *client,
icalcomponent *component)
{
icalcomponent_kind kind;
icalcomponent *vcalendar;
gboolean success;
GError *error = NULL;
kind = icalcomponent_isa (component);
switch (kind) {
case ICAL_VTODO_COMPONENT:
case ICAL_VEVENT_COMPONENT:
vcalendar = e_cal_util_new_top_level ();
if (icalcomponent_get_method (component) == ICAL_METHOD_CANCEL)
icalcomponent_set_method (vcalendar, ICAL_METHOD_CANCEL);
else
icalcomponent_set_method (vcalendar, ICAL_METHOD_PUBLISH);
icalcomponent_add_component (
vcalendar, icalcomponent_new_clone (component));
break;
case ICAL_VCALENDAR_COMPONENT:
vcalendar = icalcomponent_new_clone (component);
if (!icalcomponent_get_first_property (vcalendar, ICAL_METHOD_PROPERTY))
icalcomponent_set_method (vcalendar, ICAL_METHOD_PUBLISH);
break;
default:
return FALSE;
}
success = e_cal_client_receive_objects_sync (
client, vcalendar, NULL, &error);
if (error != NULL) {
g_warning (
"%s: Failed to receive objects: %s",
G_STRFUNC, error->message);
g_error_free (error);
}
icalcomponent_free (vcalendar);
return success;
}
static void
attachment_handler_import_event (GObject *source_object,
GAsyncResult *result,
gpointer user_data)
{
ESource *source = E_SOURCE (source_object);
EAttachment *attachment = user_data;
EClient *client = NULL;
GError *error = NULL;
icalcomponent *component;
icalcomponent *subcomponent;
icalcompiter iter;
e_client_utils_open_new_finish (source, result, &client, &error);
if (error != NULL) {
g_warn_if_fail (client == NULL);
g_warning (
"%s: Failed to open '%s': %s",
G_STRFUNC, e_source_peek_name (source),
error->message);
g_object_unref (attachment);
g_error_free (error);
return;
}
g_return_if_fail (E_IS_CLIENT (client));
component = attachment_handler_get_component (attachment);
g_return_if_fail (component != NULL);
iter = icalcomponent_begin_component (component, ICAL_ANY_COMPONENT);
while ((subcomponent = icalcompiter_deref (&iter)) != NULL) {
icalcomponent_kind kind;
kind = icalcomponent_isa (subcomponent);
icalcompiter_next (&iter);
if (kind == ICAL_VEVENT_COMPONENT)
continue;
if (kind == ICAL_VTIMEZONE_COMPONENT)
continue;
icalcomponent_remove_component (component, subcomponent);
icalcomponent_free (subcomponent);
}
/* XXX Do something with the return value. */
attachment_handler_update_objects (E_CAL_CLIENT (client), component);
g_object_unref (attachment);
g_object_unref (client);
}
static void
attachment_handler_import_todo (GObject *source_object,
GAsyncResult *result,
gpointer user_data)
{
ESource *source = E_SOURCE (source_object);
EAttachment *attachment = user_data;
EClient *client = NULL;
GError *error = NULL;
icalcomponent *component;
icalcomponent *subcomponent;
icalcompiter iter;
e_client_utils_open_new_finish (source, result, &client, &error);
if (error != NULL) {
g_warn_if_fail (client == NULL);
g_warning (
"%s: Failed to open '%s': %s",
G_STRFUNC, e_source_peek_name (source),
error->message);
g_object_unref (attachment);
g_error_free (error);
return;
}
g_return_if_fail (E_IS_CLIENT (client));
component = attachment_handler_get_component (attachment);
g_return_if_fail (component != NULL);
iter = icalcomponent_begin_component (component, ICAL_ANY_COMPONENT);
while ((subcomponent = icalcompiter_deref (&iter)) != NULL) {
icalcomponent_kind kind;
kind = icalcomponent_isa (subcomponent);
icalcompiter_next (&iter);
if (kind == ICAL_VTODO_COMPONENT)
continue;
if (kind == ICAL_VTIMEZONE_COMPONENT)
continue;
icalcomponent_remove_component (component, subcomponent);
icalcomponent_free (subcomponent);
}
/* XXX Do something with the return value. */
attachment_handler_update_objects (E_CAL_CLIENT (client), component);
g_object_unref (attachment);
g_object_unref (client);
}
static void
attachment_handler_row_activated_cb (GtkDialog *dialog)
{
gtk_dialog_response (dialog, GTK_RESPONSE_OK);
}
static void
attachment_handler_run_dialog (GtkWindow *parent,
EAttachment *attachment,
ECalClientSourceType source_type,
const gchar *title)
{
GtkWidget *dialog;
GtkWidget *container;
GtkWidget *widget;
ESourceSelector *selector;
ESourceList *source_list;
ESource *source;
icalcomponent *component;
GError *error = NULL;
component = attachment_handler_get_component (attachment);
g_return_if_fail (component != NULL);
e_cal_client_get_sources (&source_list, source_type, &error);
if (error != NULL) {
g_warning (
"%s: Failed to get cal sources: %s",
G_STRFUNC, error->message);
g_clear_error (&error);
return;
}
source = e_source_list_peek_source_any (source_list);
g_return_if_fail (source != NULL);
dialog = gtk_dialog_new_with_buttons (
title, parent, GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, NULL);
widget = gtk_button_new_with_mnemonic (_("I_mport"));
gtk_button_set_image (
GTK_BUTTON (widget), gtk_image_new_from_icon_name (
"stock_mail-import", GTK_ICON_SIZE_MENU));
gtk_dialog_add_action_widget (
GTK_DIALOG (dialog), widget, GTK_RESPONSE_OK);
gtk_widget_show (widget);
gtk_window_set_default_size (GTK_WINDOW (dialog), 300, 400);
container = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
widget = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (
GTK_SCROLLED_WINDOW (widget),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_shadow_type (
GTK_SCROLLED_WINDOW (widget), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
gtk_widget_show (widget);
container = widget;
widget = e_source_selector_new (source_list);
selector = E_SOURCE_SELECTOR (widget);
e_source_selector_set_primary_selection (selector, source);
e_source_selector_show_selection (selector, FALSE);
gtk_container_add (GTK_CONTAINER (container), widget);
gtk_widget_show (widget);
g_signal_connect_swapped (
widget, "row-activated",
G_CALLBACK (attachment_handler_row_activated_cb), dialog);
if (gtk_dialog_run (GTK_DIALOG (dialog)) != GTK_RESPONSE_OK)
goto exit;
source = e_source_selector_get_primary_selection (selector);
if (source == NULL)
goto exit;
switch (source_type) {
case E_CAL_CLIENT_SOURCE_TYPE_EVENTS:
e_client_utils_open_new (source, E_CLIENT_SOURCE_TYPE_EVENTS, FALSE, NULL,
e_client_utils_authenticate_handler, NULL,
attachment_handler_import_event, g_object_ref (attachment));
break;
case E_CAL_CLIENT_SOURCE_TYPE_TASKS:
e_client_utils_open_new (source, E_CLIENT_SOURCE_TYPE_TASKS, FALSE, NULL,
e_client_utils_authenticate_handler, NULL,
attachment_handler_import_todo, g_object_ref (attachment));
break;
default:
break;
}
exit:
gtk_widget_destroy (dialog);
}
static void
attachment_handler_import_to_calendar (GtkAction *action,
EAttachmentHandler *handler)
{
EAttachment *attachment;
EAttachmentView *view;
GList *selected;
gpointer parent;
view = e_attachment_handler_get_view (handler);
parent = gtk_widget_get_toplevel (GTK_WIDGET (view));
parent = gtk_widget_is_toplevel (parent) ? parent : NULL;
selected = e_attachment_view_get_selected_attachments (view);
g_return_if_fail (g_list_length (selected) == 1);
attachment = E_ATTACHMENT (selected->data);
attachment_handler_run_dialog (
parent, attachment,
E_CAL_CLIENT_SOURCE_TYPE_EVENTS,
_("Select a Calendar"));
g_object_unref (attachment);
g_list_free (selected);
}
static void
attachment_handler_import_to_tasks (GtkAction *action,
EAttachmentHandler *handler)
{
EAttachment *attachment;
EAttachmentView *view;
GList *selected;
gpointer parent;
view = e_attachment_handler_get_view (handler);
parent = gtk_widget_get_toplevel (GTK_WIDGET (view));
parent = gtk_widget_is_toplevel (parent) ? parent : NULL;
selected = e_attachment_view_get_selected_attachments (view);
g_return_if_fail (g_list_length (selected) == 1);
attachment = E_ATTACHMENT (selected->data);
attachment_handler_run_dialog (
parent, attachment,
E_CAL_CLIENT_SOURCE_TYPE_TASKS,
_("Select a Task List"));
g_object_unref (attachment);
g_list_free (selected);
}
static GtkActionEntry standard_entries[] = {
{ "import-to-calendar",
"stock_mail-import",
N_("I_mport to Calendar"),
NULL,
NULL, /* XXX Add a tooltip! */
G_CALLBACK (attachment_handler_import_to_calendar) },
{ "import-to-tasks",
"stock_mail-import",
N_("I_mport to Tasks"),
NULL,
NULL, /* XXX Add a tooltip! */
G_CALLBACK (attachment_handler_import_to_tasks) }
};
static void
cal_attachment_handler_update_actions (EAttachmentView *view)
{
EAttachment *attachment;
GtkAction *action;
GList *selected;
icalcomponent *component;
icalcomponent *subcomponent;
icalcomponent_kind kind;
gboolean is_vevent = FALSE;
gboolean is_vtodo = FALSE;
selected = e_attachment_view_get_selected_attachments (view);
if (g_list_length (selected) != 1)
goto exit;
attachment = E_ATTACHMENT (selected->data);
component = attachment_handler_get_component (attachment);
if (component == NULL)
goto exit;
subcomponent = icalcomponent_get_inner (component);
if (subcomponent == NULL)
goto exit;
kind = icalcomponent_isa (subcomponent);
is_vevent = (kind == ICAL_VEVENT_COMPONENT);
is_vtodo = (kind == ICAL_VTODO_COMPONENT);
exit:
action = e_attachment_view_get_action (view, "import-to-calendar");
gtk_action_set_visible (action, is_vevent);
action = e_attachment_view_get_action (view, "import-to-tasks");
gtk_action_set_visible (action, is_vtodo);
g_list_foreach (selected, (GFunc) g_object_unref, NULL);
g_list_free (selected);
}
static void
cal_attachment_handler_constructed (GObject *object)
{
EAttachmentHandler *handler;
EAttachmentView *view;
GtkActionGroup *action_group;
GtkUIManager *ui_manager;
GError *error = NULL;
handler = E_ATTACHMENT_HANDLER (object);
/* Chain up to parent's constructed() method. */
G_OBJECT_CLASS (parent_class)->constructed (object);
view = e_attachment_handler_get_view (handler);
action_group = e_attachment_view_add_action_group (view, "calendar");
gtk_action_group_add_actions (
action_group, standard_entries,
G_N_ELEMENTS (standard_entries), handler);
ui_manager = e_attachment_view_get_ui_manager (view);
gtk_ui_manager_add_ui_from_string (ui_manager, ui, -1, &error);
if (error != NULL) {
g_warning ("%s", error->message);
g_error_free (error);
}
g_signal_connect (
view, "update_actions",
G_CALLBACK (cal_attachment_handler_update_actions),
NULL);
}
static void
cal_attachment_handler_class_init (ECalAttachmentHandlerClass *class)
{
GObjectClass *object_class;
parent_class = g_type_class_peek_parent (class);
g_type_class_add_private (class, sizeof (ECalAttachmentHandlerPrivate));
object_class = G_OBJECT_CLASS (class);
object_class->constructed = cal_attachment_handler_constructed;
}
static void
cal_attachment_handler_init (ECalAttachmentHandler *handler)
{
handler->priv = E_CAL_ATTACHMENT_HANDLER_GET_PRIVATE (handler);
}
GType
e_cal_attachment_handler_get_type (void)
{
return cal_attachment_handler_type;
}
void
e_cal_attachment_handler_register_type (GTypeModule *type_module)
{
static const GTypeInfo type_info = {
sizeof (ECalAttachmentHandlerClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) cal_attachment_handler_class_init,
(GClassFinalizeFunc) NULL,
NULL, /* class_data */
sizeof (ECalAttachmentHandler),
0, /* n_preallocs */
(GInstanceInitFunc) cal_attachment_handler_init,
NULL /* value_table */
};
cal_attachment_handler_type = g_type_module_register_type (
type_module, E_TYPE_ATTACHMENT_HANDLER,
"ECalAttachmentHandler", &type_info, 0);
}