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path: root/calendar/gui/dialogs/copy-source-dialog.c
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/*
 * Evolution calendar - Copy source dialog
 *
 * 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:
 *      Rodrigo Moya <rodrigo@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <glib/gi18n.h>

#include "e-util/e-util.h"

#include "copy-source-dialog.h"
#include "select-source-dialog.h"

typedef struct {
    GtkWindow *parent;
    ESource *orig_source;
    ECalClientSourceType obj_type;
    ESource *selected_source;
    ECalClient *source_client, *dest_client;
} CopySourceDialogData;

static void
show_error (CopySourceDialogData *csdd,
            const gchar *msg,
            const GError *error)
{
    GtkWidget *dialog;

    dialog = gtk_message_dialog_new (
        csdd->parent, 0, GTK_MESSAGE_ERROR,
        GTK_BUTTONS_CLOSE, error ? "%s\n%s" : "%s", msg, error ? error->message : "");
    gtk_dialog_run (GTK_DIALOG (dialog));
    gtk_widget_destroy (dialog);
}

struct ForeachTzidData
{
    ECalClient *source_client;
    ECalClient *dest_client;
};

static void
add_timezone_to_cal_cb (icalparameter *param,
                        gpointer data)
{
    struct ForeachTzidData *ftd = data;
    icaltimezone *tz = NULL;
    const gchar *tzid;

    g_return_if_fail (ftd != NULL);
    g_return_if_fail (ftd->source_client != NULL);
    g_return_if_fail (ftd->dest_client != NULL);

    tzid = icalparameter_get_tzid (param);
    if (!tzid || !*tzid)
        return;

    e_cal_client_get_timezone_sync (
        ftd->source_client, tzid, &tz, NULL, NULL);
    if (tz != NULL)
        e_cal_client_add_timezone_sync (
            ftd->dest_client, tz, NULL, NULL);
}

static void
free_copy_data (CopySourceDialogData *csdd)
{
    if (!csdd)
        return;

    if (csdd->orig_source)
        g_object_unref (csdd->orig_source);
    if (csdd->selected_source)
        g_object_unref (csdd->selected_source);
    if (csdd->source_client)
        g_object_unref (csdd->source_client);
    if (csdd->dest_client)
        g_object_unref (csdd->dest_client);
    g_free (csdd);
}

static void
dest_source_connected_cb (GObject *source_object,
                          GAsyncResult *result,
                          gpointer user_data)
{
    CopySourceDialogData *csdd = user_data;
    EClient *client;
    GError *error = NULL;

    client = e_cal_client_connect_finish (result, &error);

    /* Sanity check. */
    g_return_if_fail (
        ((client != NULL) && (error == NULL)) ||
        ((client == NULL) && (error != NULL)));

    if (error != NULL) {
        show_error (csdd, _("Could not open destination"), error);
        g_error_free (error);
        free_copy_data (csdd);
        return;
    }

    csdd->dest_client = E_CAL_CLIENT (client);

    /* check if the destination is read only */
    if (e_client_is_readonly (E_CLIENT (csdd->dest_client))) {
        show_error (csdd, _("Destination is read only"), NULL);
    } else {
        GSList *obj_list = NULL;

        e_cal_client_get_object_list_sync (
            csdd->source_client, "#t", &obj_list, NULL, NULL);
        if (obj_list != NULL) {
            GSList *l;
            icalcomponent *icalcomp;
            struct ForeachTzidData ftd;

            ftd.source_client = csdd->source_client;
            ftd.dest_client = csdd->dest_client;

            for (l = obj_list; l != NULL; l = l->next) {
                /* FIXME: process recurrences */
                /* FIXME: process errors */
                e_cal_client_get_object_sync (
                    csdd->dest_client,
                    icalcomponent_get_uid (l->data),
                    NULL, &icalcomp, NULL, NULL);
                if (icalcomp != NULL) {
                    e_cal_client_modify_object_sync (
                        csdd->dest_client, l->data,
                        CALOBJ_MOD_ALL, NULL, NULL);
                    icalcomponent_free (icalcomp);
                } else {
                    GError *error = NULL;

                    icalcomp = l->data;

                    /* Add timezone information from source
                     * ECal to the destination ECal. */
                    icalcomponent_foreach_tzid (
                        icalcomp,
                        add_timezone_to_cal_cb, &ftd);

                    e_cal_client_create_object_sync (
                        csdd->dest_client,
                        icalcomp, NULL, NULL, &error);

                    if (error != NULL) {
                        show_error (csdd, _("Cannot create object"), error);
                        g_error_free (error);
                        break;
                    }
                }
            }

            e_cal_client_free_icalcomp_slist (obj_list);
        }
    }

    free_copy_data (csdd);
}

static void
orig_source_connected_cb (GObject *source_object,
                          GAsyncResult *result,
                          gpointer user_data)
{
    CopySourceDialogData *csdd = user_data;
    EClient *client;
    GError *error = NULL;

    client = e_cal_client_connect_finish (result, &error);

    /* Sanity check. */
    g_return_if_fail (
        ((client != NULL) && (error == NULL)) ||
        ((client == NULL) && (error != NULL)));

    if (error != NULL) {
        show_error (csdd, _("Could not open source"), error);
        g_error_free (error);
        free_copy_data (csdd);
        return;
    }

    csdd->source_client = E_CAL_CLIENT (client);

    e_cal_client_connect (
        csdd->selected_source, csdd->obj_type, NULL,
        dest_source_connected_cb, csdd);
}

static void
copy_source (const CopySourceDialogData *const_csdd)
{
    CopySourceDialogData *csdd;

    if (!const_csdd->selected_source)
        return;

    csdd = g_new0 (CopySourceDialogData, 1);
    csdd->parent = const_csdd->parent;
    csdd->orig_source = g_object_ref (const_csdd->orig_source);
    csdd->obj_type = const_csdd->obj_type;
    csdd->selected_source = g_object_ref (const_csdd->selected_source);

    e_cal_client_connect (
        csdd->orig_source, csdd->obj_type, NULL,
        orig_source_connected_cb, csdd);
}

/**
 * copy_source_dialog
 *
 * Implements the Copy command for sources, allowing the user to select a target
 * source to copy to.
 */
void
copy_source_dialog (GtkWindow *parent,
                    ESourceRegistry *registry,
                    ESource *source,
                    ECalClientSourceType obj_type)
{
    CopySourceDialogData csdd;

    g_return_if_fail (E_IS_SOURCE_REGISTRY (registry));
    g_return_if_fail (E_IS_SOURCE (source));
    g_return_if_fail (obj_type == E_CAL_CLIENT_SOURCE_TYPE_EVENTS ||
              obj_type == E_CAL_CLIENT_SOURCE_TYPE_TASKS ||
              obj_type == E_CAL_CLIENT_SOURCE_TYPE_MEMOS);

    csdd.parent = parent;
    csdd.orig_source = source;
    csdd.selected_source = NULL;
    csdd.obj_type = obj_type;

    csdd.selected_source = select_source_dialog (
        parent, registry, obj_type, source);
    if (csdd.selected_source) {
        copy_source (&csdd);

        /* free memory */
        g_object_unref (csdd.selected_source);
    }
}