path: root/modules/itip-formatter/itip-view.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.
 *
 * 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 Lesser General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 *
 * Authors:
 *      JP Rosevear <jpr@novell.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include <string.h>
#include <glib/gi18n.h>
#include <webkit/webkitdom.h>
#include <libedataserver/libedataserver.h>

#include <shell/e-shell.h>
#include <shell/e-shell-utils.h>

#include <calendar/gui/itip-utils.h>

#include <mail/em-config.h>
#include <mail/em-utils.h>
#include <em-format/e-mail-formatter-utils.h>

#include "e-conflict-search-selector.h"
#include "e-source-conflict-search.h"
#include "itip-view.h"
#include "e-mail-part-itip.h"

#define d(x)

#define MEETING_ICON "stock_new-meeting"

#define ITIP_VIEW_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), ITIP_TYPE_VIEW, ItipViewPrivate))

G_DEFINE_TYPE (ItipView, itip_view, G_TYPE_OBJECT)

typedef struct  {
    ItipViewInfoItemType type;
    gchar *message;

    guint id;
} ItipViewInfoItem;

struct _ItipViewPrivate {
    EClientCache *client_cache;
    gchar *extension_name;

    ESourceRegistry *registry;
    gulong source_added_handler_id;
    gulong source_removed_handler_id;

    ItipViewMode mode;
    ECalClientSourceType type;

        gchar *sender;
    gchar *organizer;
    gchar *organizer_sentby;
    gchar *delegator;
    gchar *attendee;
    gchar *attendee_sentby;
    gchar *proxy;

    gchar *summary;

    gchar *location;
        gchar *status;
    gchar *comment;

    struct tm *start_tm;
    gint start_tm_is_date : 1;
        gchar *start_label;
        const gchar *start_header;

    struct tm *end_tm;
    gint end_tm_is_date : 1;
        gchar *end_label;
        const gchar *end_header;

    GSList *upper_info_items;
    GSList *lower_info_items;

    guint next_info_item_id;

    gchar *description;

    gint buttons_sensitive : 1;

        gboolean is_recur_set;

    gint needs_decline : 1;

        WebKitDOMDocument *dom_document;
        EMailPartItip *itip_part;

        gchar *error;
};

#define TEXT_ROW_SENDER "text_row_sender"
#define TABLE_ROW_SUMMARY "table_row_summary"
#define TABLE_ROW_LOCATION "table_row_location"
#define TABLE_ROW_START_DATE "table_row_start_time"
#define TABLE_ROW_END_DATE "table_row_end_time"
#define TABLE_ROW_STATUS "table_row_status"
#define TABLE_ROW_COMMENT "table_row_comment"
#define TABLE_ROW_DESCRIPTION "table_row_description"
#define TABLE_ROW_RSVP_COMMENT "table_row_rsvp_comment"
#define TABLE_ROW_ESCB "table_row_escb"
#define TABLE_ROW_BUTTONS "table_row_buttons"
#define TABLE_ROW_ESCB_LABEL "table_row_escb_label"

#define TABLE_BUTTONS "table_buttons"

#define SELECT_ESOURCE "select_esource"
#define TEXTAREA_RSVP_COMMENT "textarea_rsvp_comment"

#define CHECKBOX_RSVP "checkbox_rsvp"
#define CHECKBOX_RECUR "checkbox_recur"
#define CHECKBOX_UPDATE "checkbox_update"
#define CHECKBOX_FREE_TIME "checkbox_free_time"
#define CHECKBOX_KEEP_ALARM "checkbox_keep_alarm"
#define CHECKBOX_INHERIT_ALARM "checkbox_inherit_alarm"

#define BUTTON_OPEN_CALENDAR "button_open_calendar"
#define BUTTON_DECLINE "button_decline"
#define BUTTON_DECLINE_ALL "button_decline_all"
#define BUTTON_ACCEPT "button_accept"
#define BUTTON_ACCEPT_ALL "button_accept_all"
#define BUTTON_TENTATIVE "button_tentative"
#define BUTTON_TENTATIVE_ALL "button_tentative_all"
#define BUTTON_SEND_INFORMATION "button_send_information"
#define BUTTON_UPDATE "button_update"
#define BUTTON_UPDATE_ATTENDEE_STATUS "button_update_attendee_status"
#define BUTTON_SAVE "button_save"

#define TABLE_UPPER_ITIP_INFO "table_upper_itip_info"
#define TABLE_LOWER_ITIP_INFO "table_lower_itip_info"

#define DIV_ITIP_CONTENT "div_itip_content"
#define DIV_ITIP_ERROR "div_itip_error"

enum {
    PROP_0,
    PROP_CLIENT_CACHE,
    PROP_EXTENSION_NAME
};

enum {
    SOURCE_SELECTED,
    RESPONSE,
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = { 0 };

static void
format_date_and_time_x (struct tm *date_tm,
                        struct tm *current_tm,
                        gboolean use_24_hour_format,
                        gboolean show_midnight,
                        gboolean show_zero_seconds,
                        gboolean is_date,
                        gchar *buffer,
                        gint buffer_size)
{
    gchar *format;
    struct tm tomorrow_tm, week_tm;

    /* Calculate a normalized "tomorrow" */
    tomorrow_tm = *current_tm;
    /* Don't need this if date is in the past. Also, year assumption won't fail. */
    if (date_tm->tm_year >= current_tm->tm_year && tomorrow_tm.tm_mday == time_days_in_month (current_tm->tm_year + 1900, current_tm->tm_mon)) {
        tomorrow_tm.tm_mday = 1;
        if (tomorrow_tm.tm_mon == 11) {
            tomorrow_tm.tm_mon = 1;
            tomorrow_tm.tm_year++;
        } else {
            tomorrow_tm.tm_mon++;
        }
    } else {
        tomorrow_tm.tm_mday++;
    }

    /* Calculate a normalized "next seven days" */
    week_tm = *current_tm;
    /* Don't need this if date is in the past. Also, year assumption won't fail. */
    if (date_tm->tm_year >= current_tm->tm_year && week_tm.tm_mday + 6 > time_days_in_month (date_tm->tm_year + 1900, date_tm->tm_mon)) {
        week_tm.tm_mday = (week_tm.tm_mday + 6) % time_days_in_month (date_tm->tm_year + 1900, date_tm->tm_mon);
        if (week_tm.tm_mon == 11) {
            week_tm.tm_mon = 1;
            week_tm.tm_year++;
        } else {
            week_tm.tm_mon++;
        }
    } else {
        week_tm.tm_mday += 6;
    }

    /* Today */
    if (date_tm->tm_mday == current_tm->tm_mday &&
        date_tm->tm_mon == current_tm->tm_mon &&
        date_tm->tm_year == current_tm->tm_year) {
        if (is_date || (!show_midnight && date_tm->tm_hour == 0
            && date_tm->tm_min == 0 && date_tm->tm_sec == 0)) {
            /* strftime format of a weekday and a date. */
            format = _("Today");
        } else if (use_24_hour_format) {
            if (!show_zero_seconds && date_tm->tm_sec == 0)
                /* strftime format of a time,
                 * in 24-hour format, without seconds. */
                format = _("Today %H:%M");
            else
                /* strftime format of a time,
                 * in 24-hour format. */
                format = _("Today %H:%M:%S");
        } else {
            if (!show_zero_seconds && date_tm->tm_sec == 0)
                /* strftime format of a time,
                 * in 12-hour format, without seconds. */
                format = _("Today %l:%M %p");
            else
                /* strftime format of a time,
                 * in 12-hour format. */
                format = _("Today %l:%M:%S %p");
        }

    /* Tomorrow */
    } else if (date_tm->tm_mday == tomorrow_tm.tm_mday &&
           date_tm->tm_mon == tomorrow_tm.tm_mon &&
           date_tm->tm_year == tomorrow_tm.tm_year) {
        if (is_date || (!show_midnight && date_tm->tm_hour == 0
            && date_tm->tm_min == 0 && date_tm->tm_sec == 0)) {
            /* strftime format of a weekday and a date. */
            format = _("Tomorrow");
        } else if (use_24_hour_format) {
            if (!show_zero_seconds && date_tm->tm_sec == 0)
                /* strftime format of a time,
                 * in 24-hour format, without seconds. */
                format = _("Tomorrow %H:%M");
            else
                /* strftime format of a time,
                 * in 24-hour format. */
                format = _("Tomorrow %H:%M:%S");
        } else {
            if (!show_zero_seconds && date_tm->tm_sec == 0)
                /* strftime format of a time,
                 * in 12-hour format, without seconds. */
                format = _("Tomorrow %l:%M %p");
            else
                /* strftime format of a time,
                 * in 12-hour format. */
                format = _("Tomorrow %l:%M:%S %p");
        }

    /* Within 6 days */
    } else if ((date_tm->tm_year >= current_tm->tm_year &&
            date_tm->tm_mon >= current_tm->tm_mon &&
            date_tm->tm_mday >= current_tm->tm_mday) &&

           (date_tm->tm_year < week_tm.tm_year ||

           (date_tm->tm_year == week_tm.tm_year &&
            date_tm->tm_mon < week_tm.tm_mon) ||

           (date_tm->tm_year == week_tm.tm_year &&
            date_tm->tm_mon == week_tm.tm_mon &&
            date_tm->tm_mday < week_tm.tm_mday))) {
        if (is_date || (!show_midnight && date_tm->tm_hour == 0
            && date_tm->tm_min == 0 && date_tm->tm_sec == 0)) {
            /* strftime format of a weekday. */
            format = _("%A");
        } else if (use_24_hour_format) {
            if (!show_zero_seconds && date_tm->tm_sec == 0)
                /* strftime format of a weekday and a
                 * time, in 24-hour format, without seconds. */
                format = _("%A %H:%M");
            else
                /* strftime format of a weekday and a
                 * time, in 24-hour format. */
                format = _("%A %H:%M:%S");
        } else {
            if (!show_zero_seconds && date_tm->tm_sec == 0)
                /* strftime format of a weekday and a
                 * time, in 12-hour format, without seconds. */
                format = _("%A %l:%M %p");
            else
                /* strftime format of a weekday and a
                 * time, in 12-hour format. */
                format = _("%A %l:%M:%S %p");
        }

    /* This Year */
    } else if (date_tm->tm_year == current_tm->tm_year) {
        if (is_date || (!show_midnight && date_tm->tm_hour == 0
            && date_tm->tm_min == 0 && date_tm->tm_sec == 0)) {
            /* strftime format of a weekday and a date
             * without a year. */
            format = _("%A, %B %e");
        } else if (use_24_hour_format) {
            if (!show_zero_seconds && date_tm->tm_sec == 0)
                /* strftime format of a weekday, a date
                 * without a year and a time,
                 * in 24-hour format, without seconds. */
                format = _("%A, %B %e %H:%M");
            else
                /* strftime format of a weekday, a date without a year
                 * and a time, in 24-hour format. */
                format = _("%A, %B %e %H:%M:%S");
        } else {
            if (!show_zero_seconds && date_tm->tm_sec == 0)
                /* strftime format of a weekday, a date without a year
                 * and a time, in 12-hour format, without seconds. */
                format = _("%A, %B %e %l:%M %p");
            else
                /* strftime format of a weekday, a date without a year
                 * and a time, in 12-hour format. */
                format = _("%A, %B %e %l:%M:%S %p");
        }
    } else {
        if (is_date || (!show_midnight && date_tm->tm_hour == 0
            && date_tm->tm_min == 0 && date_tm->tm_sec == 0)) {
            /* strftime format of a weekday and a date. */
            format = _("%A, %B %e, %Y");
        } else if (use_24_hour_format) {
            if (!show_zero_seconds && date_tm->tm_sec == 0)
                /* strftime format of a weekday, a date and a
                 * time, in 24-hour format, without seconds. */
                format = _("%A, %B %e, %Y %H:%M");
            else
                /* strftime format of a weekday, a date and a
                 * time, in 24-hour format. */
                format = _("%A, %B %e, %Y %H:%M:%S");
        } else {
            if (!show_zero_seconds && date_tm->tm_sec == 0)
                /* strftime format of a weekday, a date and a
                 * time, in 12-hour format, without seconds. */
                format = _("%A, %B %e, %Y %l:%M %p");
            else
                /* strftime format of a weekday, a date and a
                 * time, in 12-hour format. */
                format = _("%A, %B %e, %Y %l:%M:%S %p");
        }
    }

    /* strftime returns 0 if the string doesn't fit, and leaves the buffer
     * undefined, so we set it to the empty string in that case. */
    if (e_utf8_strftime_fix_am_pm (buffer, buffer_size, format, date_tm) == 0)
        buffer[0] = '\0';
}

static gchar *
dupe_first_bold (const gchar *format,
                 const gchar *first,
                 const gchar *second)
{
    gchar *f, *s, *res;

    f = g_markup_printf_escaped ("<b>%s</b>", first ? first : "");
    s = g_markup_escape_text (second ? second : "", -1);

    res = g_strdup_printf (format, f, s);

    g_free (f);
    g_free (s);

    return res;
}

static gchar *
set_calendar_sender_text (ItipView *view)
{
    ItipViewPrivate *priv;
    const gchar *organizer, *attendee;
    gchar *sender = NULL;
    gchar *on_behalf_of = NULL;

    priv = view->priv;

    organizer = priv->organizer ? priv->organizer : _("An unknown person");
    attendee = priv->attendee ? priv->attendee : _("An unknown person");

    /* The current account ID (i.e. the delegatee) is receiving a copy of the request/response. Here we ask the delegatee to respond/accept on behalf of the delegator. */
    if (priv->organizer && priv->proxy)
        on_behalf_of = dupe_first_bold (_("Please respond on behalf of %s"), priv->proxy, NULL);
    else if (priv->attendee && priv->proxy)
        on_behalf_of = dupe_first_bold (_("Received on behalf of %s"), priv->proxy, NULL);

    switch (priv->mode) {
    case ITIP_VIEW_MODE_PUBLISH:
        if (priv->organizer_sentby)
            sender = dupe_first_bold (_("%s through %s has published the following meeting information:"), organizer, priv->organizer_sentby);
        else
            sender = dupe_first_bold (_("%s has published the following meeting information:"), organizer, NULL);
        break;
    case ITIP_VIEW_MODE_REQUEST:
        /* FIXME is the delegator stuff handled correctly here? */
        if (priv->delegator) {
            sender = dupe_first_bold (_("%s has delegated the following meeting to you:"), priv->delegator, NULL);
        } else {
            if (priv->organizer_sentby)
                sender = dupe_first_bold (_("%s through %s requests your presence at the following meeting:"), organizer, priv->organizer_sentby);
            else
                sender = dupe_first_bold (_("%s requests your presence at the following meeting:"), organizer, NULL);
        }
        break;
    case ITIP_VIEW_MODE_ADD:
        /* FIXME What text for this? */
        if (priv->organizer_sentby)
            sender = dupe_first_bold (_("%s through %s wishes to add to an existing meeting:"), organizer, priv->organizer_sentby);
        else
            sender = dupe_first_bold (_("%s wishes to add to an existing meeting:"), organizer, NULL);
        break;
    case ITIP_VIEW_MODE_REFRESH:
        if (priv->attendee_sentby)
            sender = dupe_first_bold (_("%s through %s wishes to receive the latest information for the following meeting:"), attendee, priv->attendee_sentby);
        else
            sender = dupe_first_bold (_("%s wishes to receive the latest information for the following meeting:"), attendee, NULL);
        break;
    case ITIP_VIEW_MODE_REPLY:
        if (priv->attendee_sentby)
            sender = dupe_first_bold (_("%s through %s has sent back the following meeting response:"), attendee, priv->attendee_sentby);
        else
            sender = dupe_first_bold (_("%s has sent back the following meeting response:"), attendee, NULL);
        break;
    case ITIP_VIEW_MODE_CANCEL:
        if (priv->organizer_sentby)
            sender = dupe_first_bold (_("%s through %s has canceled the following meeting:"), organizer, priv->organizer_sentby);
        else
            sender = dupe_first_bold (_("%s has canceled the following meeting:"), organizer, NULL);
        break;
    case ITIP_VIEW_MODE_COUNTER:
        if (priv->attendee_sentby)
            sender = dupe_first_bold (_("%s through %s has proposed the following meeting changes."), attendee, priv->attendee_sentby);
        else
            sender = dupe_first_bold (_("%s has proposed the following meeting changes:"), attendee, NULL);
        break;
    case ITIP_VIEW_MODE_DECLINECOUNTER:
        if (priv->organizer_sentby)
            sender = dupe_first_bold (_("%s through %s has declined the following meeting changes:"), organizer, priv->organizer_sentby);
        else
            sender = dupe_first_bold (_("%s has declined the following meeting changes:"), organizer, NULL);
        break;
    default:
        break;
    }

    if (sender && on_behalf_of) {
        gchar *tmp;
        tmp = g_strjoin (NULL, sender, "\n", on_behalf_of, NULL);
        g_free (sender);
        sender = tmp;
    }

    g_free (on_behalf_of);

    return sender;
}

static gchar *
set_tasklist_sender_text (ItipView *view)
{
    ItipViewPrivate *priv;
    const gchar *organizer, *attendee;
    gchar *sender = NULL;
    gchar *on_behalf_of = NULL;

    priv = view->priv;

    organizer = priv->organizer ? priv->organizer : _("An unknown person");
    attendee = priv->attendee ? priv->attendee : _("An unknown person");

    /* The current account ID (i.e. the delegatee) is receiving a copy of the request/response. Here we ask the delegatee to respond/accept on behalf of the delegator. */
    if (priv->organizer && priv->proxy)
        on_behalf_of = dupe_first_bold (_("Please respond on behalf of %s"), priv->proxy, NULL);
    else if (priv->attendee && priv->proxy)
        on_behalf_of = dupe_first_bold (_("Received on behalf of %s"), priv->proxy, NULL);

    switch (priv->mode) {
    case ITIP_VIEW_MODE_PUBLISH:
        if (priv->organizer_sentby)
            sender = dupe_first_bold (_("%s through %s has published the following task:"), organizer, priv->organizer_sentby);
        else
            sender = dupe_first_bold (_("%s has published the following task:"), organizer, NULL);
        break;
    case ITIP_VIEW_MODE_REQUEST:
        /* FIXME is the delegator stuff handled correctly here? */
        if (priv->delegator) {
            sender = dupe_first_bold (_("%s requests the assignment of %s to the following task:"), organizer, priv->delegator);
        } else {
            if (priv->organizer_sentby)
                sender = dupe_first_bold (_("%s through %s has assigned you a task:"), organizer, priv->organizer_sentby);
            else
                sender = dupe_first_bold (_("%s has assigned you a task:"), organizer, NULL);
        }
        break;
    case ITIP_VIEW_MODE_ADD:
        /* FIXME What text for this? */
        if (priv->organizer_sentby)
            sender = dupe_first_bold (_("%s through %s wishes to add to an existing task:"), organizer, priv->organizer_sentby);
        else
            sender = dupe_first_bold (_("%s wishes to add to an existing task:"), organizer, NULL);
        break;
    case ITIP_VIEW_MODE_REFRESH:
        if (priv->attendee_sentby)
            sender = dupe_first_bold (_("%s through %s wishes to receive the latest information for the following assigned task:"), attendee, priv->attendee_sentby);
        else
            sender = dupe_first_bold (_("%s wishes to receive the latest information for the following assigned task:"), attendee, NULL);
        break;
    case ITIP_VIEW_MODE_REPLY:
        if (priv->attendee_sentby)
            sender = dupe_first_bold (_("%s through %s has sent back the following assigned task response:"), attendee, priv->attendee_sentby);
        else
            sender = dupe_first_bold (_("%s has sent back the following assigned task response:"), attendee, NULL);
        break;
    case ITIP_VIEW_MODE_CANCEL:
        if (priv->organizer_sentby)
            sender = dupe_first_bold (_("%s through %s has canceled the following assigned task:"), organizer, priv->organizer_sentby);
        else
            sender = dupe_first_bold (_("%s has canceled the following assigned task:"), organizer, NULL);
        break;
    case ITIP_VIEW_MODE_COUNTER:
        if (priv->attendee_sentby)
            sender = dupe_first_bold (_("%s through %s has proposed the following task assignment changes:"), attendee, priv->attendee_sentby);
        else
            sender = dupe_first_bold (_("%s has proposed the following task assignment changes:"), attendee, NULL);
        break;
    case ITIP_VIEW_MODE_DECLINECOUNTER:
        if (priv->organizer_sentby)
            sender = dupe_first_bold (_("%s through %s has declined the following assigned task:"), organizer, priv->organizer_sentby);
        else
            sender = dupe_first_bold (_("%s has declined the following assigned task:"), organizer, NULL);
        break;
    default:
        break;
    }

    if (sender && on_behalf_of) {
        gchar *tmp;
        tmp = g_strjoin (NULL, sender, "\n", on_behalf_of, NULL);
        g_free (sender);
        sender = tmp;
    }

    g_free (on_behalf_of);

    return sender;
}

static gchar *
set_journal_sender_text (ItipView *view)
{
    ItipViewPrivate *priv;
    const gchar *organizer;
    gchar *sender = NULL;
    gchar *on_behalf_of = NULL;

    priv = view->priv;

    organizer = priv->organizer ? priv->organizer : _("An unknown person");

    /* The current account ID (i.e. the delegatee) is receiving a copy of the request/response. Here we ask the delegatee to respond/accept on behalf of the delegator. */
    if (priv->organizer && priv->proxy)
        on_behalf_of = dupe_first_bold (_("Please respond on behalf of %s"), priv->proxy, NULL);
    else if (priv->attendee && priv->proxy)
        on_behalf_of = dupe_first_bold (_("Received on behalf of %s"), priv->proxy, NULL);

    switch (priv->mode) {
    case ITIP_VIEW_MODE_PUBLISH:
        if (priv->organizer_sentby)
            sender = dupe_first_bold (_("%s through %s has published the following memo:"), organizer, priv->organizer_sentby);
        else
            sender = dupe_first_bold (_("%s has published the following memo:"), organizer, NULL);
        break;
    case ITIP_VIEW_MODE_ADD:
        /* FIXME What text for this? */
        if (priv->organizer_sentby)
            sender = dupe_first_bold (_("%s through %s wishes to add to an existing memo:"), organizer, priv->organizer_sentby);
        else
            sender = dupe_first_bold (_("%s wishes to add to an existing memo:"), organizer, NULL);
        break;
    case ITIP_VIEW_MODE_CANCEL:
        if (priv->organizer_sentby)
            sender = dupe_first_bold (_("%s through %s has canceled the following shared memo:"), organizer, priv->organizer_sentby);
        else
            sender = dupe_first_bold (_("%s has canceled the following shared memo:"), organizer, NULL);
        break;
    default:
        break;
    }

    if (sender && on_behalf_of)
        sender = g_strjoin (NULL, sender, "\n", on_behalf_of, NULL);

    g_free (on_behalf_of);

    return sender;
}

static void
set_sender_text (ItipView *view)
{
    ItipViewPrivate *priv;
    priv = view->priv;

    if (priv->sender)
        g_free (priv->sender);

    switch (priv->type) {
    case E_CAL_CLIENT_SOURCE_TYPE_EVENTS:
        priv->sender = set_calendar_sender_text (view);
        break;
    case E_CAL_CLIENT_SOURCE_TYPE_TASKS:
        priv->sender = set_tasklist_sender_text (view);
        break;
    case E_CAL_CLIENT_SOURCE_TYPE_MEMOS:
        priv->sender = set_journal_sender_text (view);
        break;
    default:
        priv->sender = NULL;
        break;
    }

    if (priv->sender && priv->dom_document) {
        WebKitDOMElement *div;

        div = webkit_dom_document_get_element_by_id (
            priv->dom_document, TEXT_ROW_SENDER);
        webkit_dom_html_element_set_inner_html (
            WEBKIT_DOM_HTML_ELEMENT (div), priv->sender, NULL);
    }
}

static void
update_start_end_times (ItipView *view)
{
    ItipViewPrivate *priv;
    WebKitDOMElement *row, *col;
    gchar buffer[256];
    time_t now;
    struct tm *now_tm;

    priv = view->priv;

    now = time (NULL);
    now_tm = localtime (&now);

    if (priv->start_label)
        g_free (priv->start_label);
    if (priv->end_label)
        g_free (priv->end_label);

    #define is_same(_member) (priv->start_tm->_member == priv->end_tm->_member)
    if (priv->start_tm && priv->end_tm && priv->start_tm_is_date && priv->end_tm_is_date
        && is_same (tm_mday) && is_same (tm_mon) && is_same (tm_year)) {
        /* it's an all day event in one particular day */
        format_date_and_time_x (priv->start_tm, now_tm, FALSE, TRUE, FALSE, priv->start_tm_is_date, buffer, 256);
        priv->start_label = g_strdup (buffer);
        priv->start_header = _("All day:");
        priv->end_header = NULL;
        priv->end_label = NULL;
    } else {
        if (priv->start_tm) {
            format_date_and_time_x (priv->start_tm, now_tm, FALSE, TRUE, FALSE, priv->start_tm_is_date, buffer, 256);
            priv->start_header = priv->start_tm_is_date ? _("Start day:") : _("Start time:");
            priv->start_label = g_strdup (buffer);
        } else {
            priv->start_header = NULL;
            priv->start_label = NULL;
        }

        if (priv->end_tm) {
            format_date_and_time_x (priv->end_tm, now_tm, FALSE, TRUE, FALSE, priv->end_tm_is_date, buffer, 256);
            priv->end_header = priv->end_tm_is_date ? _("End day:") : _("End time:");
            priv->end_label = g_strdup (buffer);
        } else {
            priv->end_header = NULL;
            priv->end_label = NULL;
        }
    }
    #undef is_same

    if (priv->dom_document) {
        row = webkit_dom_document_get_element_by_id (
            priv->dom_document, TABLE_ROW_START_DATE);
        if (priv->start_header && priv->start_label) {
            webkit_dom_html_element_set_hidden (
                WEBKIT_DOM_HTML_ELEMENT (row), FALSE);

            col = webkit_dom_element_get_first_element_child (row);
            webkit_dom_html_element_set_inner_html (
                WEBKIT_DOM_HTML_ELEMENT (col), priv->start_header, NULL);

            col = webkit_dom_element_get_last_element_child (row);
            webkit_dom_html_element_set_inner_html (
                WEBKIT_DOM_HTML_ELEMENT (col), priv->start_label, NULL);
        } else {
            webkit_dom_html_element_set_hidden (
                WEBKIT_DOM_HTML_ELEMENT (row), TRUE);
        }

        row = webkit_dom_document_get_element_by_id (
            priv->dom_document, TABLE_ROW_END_DATE);
        if (priv->end_header && priv->end_label) {
            webkit_dom_html_element_set_hidden (
                WEBKIT_DOM_HTML_ELEMENT (row), FALSE);

            col = webkit_dom_element_get_first_element_child (row);
            webkit_dom_html_element_set_inner_html (
                WEBKIT_DOM_HTML_ELEMENT (col), priv->end_header, NULL);

            col = webkit_dom_element_get_last_element_child (row);
            webkit_dom_html_element_set_inner_html (
                WEBKIT_DOM_HTML_ELEMENT (col), priv->end_label, NULL);
        } else {
            webkit_dom_html_element_set_hidden (
                WEBKIT_DOM_HTML_ELEMENT (row), TRUE);
        }
    }
}

static void
button_clicked_cb (WebKitDOMElement *element,
                   WebKitDOMEvent *event,
                   gpointer data)
{
    ItipViewResponse response;
    gchar *responseStr;

    responseStr = webkit_dom_html_button_element_get_value (
        WEBKIT_DOM_HTML_BUTTON_ELEMENT (element));

    response = atoi (responseStr);

    g_signal_emit (data, signals[RESPONSE], 0, response);
}

static void
rsvp_toggled_cb (WebKitDOMHTMLInputElement *input,
                 WebKitDOMEvent *event,
                 gpointer data)
{
    WebKitDOMElement *el;

    ItipView *view = data;
    gboolean rsvp;

    rsvp = webkit_dom_html_input_element_get_checked (input);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TEXTAREA_RSVP_COMMENT);
    webkit_dom_html_text_area_element_set_disabled (
        WEBKIT_DOM_HTML_TEXT_AREA_ELEMENT (el), !rsvp);
}

static void
recur_toggled_cb (WebKitDOMHTMLInputElement *input,
                  WebKitDOMEvent *event,
                  gpointer data)
{
    ItipView *view = data;

    itip_view_set_mode (view, view->priv->mode);
}

/*
  alarm_check_toggled_cb
  check1 was changed, so make the second available based on state of the first check.
*/
static void
alarm_check_toggled_cb (WebKitDOMHTMLInputElement *check1,
                        WebKitDOMEvent *event,
                        ItipView *view)
{
    WebKitDOMElement *check2;
    gchar *id;

#if WEBKIT_CHECK_VERSION(2,2,0)  /* XXX should really be (2,1,something) */
    id = webkit_dom_element_get_id (
        WEBKIT_DOM_ELEMENT (check1));
#else
    id = webkit_dom_html_element_get_id (
        WEBKIT_DOM_HTML_ELEMENT (check1));
#endif

    if (g_strcmp0 (id, CHECKBOX_INHERIT_ALARM)) {
        check2 = webkit_dom_document_get_element_by_id (
            view->priv->dom_document, CHECKBOX_KEEP_ALARM);
    } else {
        check2 = webkit_dom_document_get_element_by_id (
            view->priv->dom_document, CHECKBOX_INHERIT_ALARM);
    }

    g_free (id);

    webkit_dom_html_input_element_set_disabled (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (check2),
        (webkit_dom_html_element_get_hidden (
                WEBKIT_DOM_HTML_ELEMENT (check1)) &&
            webkit_dom_html_input_element_get_checked (check1)));
}

static void
source_changed_cb (WebKitDOMElement *select,
                   WebKitDOMEvent *event,
                   ItipView *view)
{
    ESource *source;

    source = itip_view_ref_source (view);

    d (printf ("Source changed to '%s'\n", e_source_get_display_name (source)));
    g_signal_emit (view, signals[SOURCE_SELECTED], 0, source);

    g_object_unref (source);
}

static void
append_checkbox_table_row (GString *buffer,
                           const gchar *name,
                           const gchar *label)
{
    gchar *access_key, *html_label;

    html_label = e_mail_formatter_parse_html_mnemonics (label, &access_key);

    g_string_append_printf (
        buffer,
        "<tr id=\"table_row_%s\" hidden=\"\"><td colspan=\"2\">"
        "<input type=\"checkbox\" name=\"%s\" id=\"%s\" value=\"%s\" >"
        "<label for=\"%s\" accesskey=\"%s\">%s</label>"
        "</td></tr>\n",
        name, name, name, name, name,
        access_key ? access_key : "", html_label);

    g_free (html_label);

    if (access_key)
        g_free (access_key);
}

static void
append_text_table_row (GString *buffer,
                       const gchar *id,
                       const gchar *label,
                       const gchar *value)
{
    if (label && *label) {

        g_string_append_printf (
            buffer,
            "<tr id=\"%s\" %s><th>%s</th><td>%s</td></tr>\n",
            id, (value && *value) ? "" : "hidden=\"\"", label, value ? value : "");

    } else {

        g_string_append_printf (
            buffer,
            "<tr id=\"%s\"%s><td colspan=\"2\">%s</td></tr>\n",
            id, g_strcmp0 (id, TABLE_ROW_SUMMARY) == 0 ? "" : " hidden=\"\"", value ? value : "");

    }
}

static void
append_text_table_row_nonempty (GString *buffer,
                                const gchar *id,
                                const gchar *label,
                                const gchar *value)
{
    if (!value || !*value)
        return;

    append_text_table_row (buffer, id, label, value);
}

static void
append_info_item_row (ItipView *view,
                      const gchar *table_id,
                      ItipViewInfoItem *item)
{
    WebKitDOMElement *table;
    WebKitDOMHTMLElement *row, *cell;
    const gchar *icon_name;
    gchar *id;

    table = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, table_id);
    row = webkit_dom_html_table_element_insert_row (
        WEBKIT_DOM_HTML_TABLE_ELEMENT (table), -1, NULL);

    id = g_strdup_printf ("%s_row_%d", table_id, item->id);
#if WEBKIT_CHECK_VERSION(2,2,0)  /* XXX should really be (2,1,something) */
    webkit_dom_element_set_id (WEBKIT_DOM_ELEMENT (row), id);
#else
    webkit_dom_html_element_set_id (row, id);
#endif
    g_free (id);

    switch (item->type) {
        case ITIP_VIEW_INFO_ITEM_TYPE_INFO:
            icon_name = GTK_STOCK_DIALOG_INFO;
            break;
        case ITIP_VIEW_INFO_ITEM_TYPE_WARNING:
            icon_name = GTK_STOCK_DIALOG_WARNING;
            break;
        case ITIP_VIEW_INFO_ITEM_TYPE_ERROR:
            icon_name = GTK_STOCK_DIALOG_ERROR;
            break;
        case ITIP_VIEW_INFO_ITEM_TYPE_PROGRESS:
            icon_name = GTK_STOCK_FIND;
            break;
        case ITIP_VIEW_INFO_ITEM_TYPE_NONE:
            default:
            icon_name = NULL;
    }

    cell = webkit_dom_html_table_row_element_insert_cell (
        (WebKitDOMHTMLTableRowElement *) row, -1, NULL);

    if (icon_name) {
        WebKitDOMElement *image;
        gchar *icon_uri;

        image = webkit_dom_document_create_element (
            view->priv->dom_document, "IMG", NULL);

        icon_uri = g_strdup_printf ("gtk-stock://%s", icon_name);
        webkit_dom_html_image_element_set_src (
            WEBKIT_DOM_HTML_IMAGE_ELEMENT (image), icon_uri);
        g_free (icon_uri);

        webkit_dom_node_append_child (
            WEBKIT_DOM_NODE (cell),
            WEBKIT_DOM_NODE (image),
            NULL);
    }

    cell = webkit_dom_html_table_row_element_insert_cell (
        (WebKitDOMHTMLTableRowElement *) row, -1, NULL);

    webkit_dom_html_element_set_inner_html (cell, item->message, NULL);

    d (printf ("Added row %s_row_%d ('%s')\n", table_id, item->id, item->message));
}

static void
remove_info_item_row (ItipView *view,
                      const gchar *table_id,
                      guint id)
{
    WebKitDOMElement *row;
    gchar *row_id;

    row_id = g_strdup_printf ("%s_row_%d", table_id, id);
    row = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, row_id);
    g_free (row_id);

    webkit_dom_node_remove_child (
        webkit_dom_node_get_parent_node (WEBKIT_DOM_NODE (row)),
        WEBKIT_DOM_NODE (row),
        NULL);

    d (printf ("Removed row %s_row_%d\n", table_id, id));
}

static void
buttons_table_write_button (GString *buffer,
                            const gchar *name,
                            const gchar *label,
                            const gchar *icon,
                            ItipViewResponse response)
{
    gchar *access_key, *html_label;

    html_label = e_mail_formatter_parse_html_mnemonics (label, &access_key);

    g_string_append_printf (
        buffer,
        "<td><button type=\"button\" name=\"%s\" value=\"%d\" id=\"%s\" accesskey=\"%s\" hidden disabled>"
        "<div><img src=\"gtk-stock://%s?size=%d\"> <span>%s</span></div>"
        "</button></td>\n",
        name, response, name, access_key ? access_key : "" , icon,
        GTK_ICON_SIZE_BUTTON, html_label);

    g_free (html_label);

    if (access_key)
        g_free (access_key);
}

static void
append_buttons_table (GString *buffer)
{
    g_string_append (
        buffer,
        "<table class=\"itip buttons\" border=\"0\" "
        "id=\"" TABLE_BUTTONS "\" cellspacing=\"6\" "
        "cellpadding=\"0\" >"
        "<tr id=\"" TABLE_ROW_BUTTONS "\">");

        /* Everything gets the open button */
    buttons_table_write_button (
        buffer, BUTTON_OPEN_CALENDAR, _("Ope_n Calendar"),
        GTK_STOCK_JUMP_TO, ITIP_VIEW_RESPONSE_OPEN);
    buttons_table_write_button (
        buffer, BUTTON_DECLINE_ALL, _("_Decline all"),
        GTK_STOCK_CANCEL, ITIP_VIEW_RESPONSE_DECLINE);
    buttons_table_write_button (
        buffer, BUTTON_DECLINE, _("_Decline"),
        GTK_STOCK_CANCEL, ITIP_VIEW_RESPONSE_DECLINE);
    buttons_table_write_button (
        buffer, BUTTON_TENTATIVE_ALL, _("_Tentative all"),
        GTK_STOCK_DIALOG_QUESTION, ITIP_VIEW_RESPONSE_TENTATIVE);
    buttons_table_write_button (
        buffer, BUTTON_TENTATIVE, _("_Tentative"),
        GTK_STOCK_DIALOG_QUESTION, ITIP_VIEW_RESPONSE_TENTATIVE);
    buttons_table_write_button (
        buffer, BUTTON_ACCEPT_ALL, _("Acce_pt all"),
        GTK_STOCK_APPLY, ITIP_VIEW_RESPONSE_ACCEPT);
    buttons_table_write_button (
        buffer, BUTTON_ACCEPT, _("Acce_pt"),
        GTK_STOCK_APPLY, ITIP_VIEW_RESPONSE_ACCEPT);
    buttons_table_write_button (
        buffer, BUTTON_SEND_INFORMATION, _("Send _Information"),
        GTK_STOCK_REFRESH, ITIP_VIEW_RESPONSE_REFRESH);
    buttons_table_write_button (
        buffer, BUTTON_UPDATE_ATTENDEE_STATUS, _("_Update Attendee Status"),
        GTK_STOCK_REFRESH, ITIP_VIEW_RESPONSE_UPDATE);
    buttons_table_write_button (
        buffer, BUTTON_UPDATE,  _("_Update"),
        GTK_STOCK_REFRESH, ITIP_VIEW_RESPONSE_CANCEL);

    g_string_append (buffer, "</tr></table>");
}

static void
itip_view_rebuild_source_list (ItipView *view)
{
    ESourceRegistry *registry;
    WebKitDOMElement *select;
    GList *list, *link;
    const gchar *extension_name;
    GHashTable *groups;

    d (printf ("Assigning a new source list!\n"));

    if (!view->priv->dom_document)
        return;

    registry = view->priv->registry;
    extension_name = itip_view_get_extension_name (view);

    select = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, SELECT_ESOURCE);

    while (webkit_dom_node_has_child_nodes (WEBKIT_DOM_NODE (select))) {
        webkit_dom_node_remove_child (
            WEBKIT_DOM_NODE (select),
            webkit_dom_node_get_last_child (WEBKIT_DOM_NODE (select)),
            NULL);
    }

    if (extension_name == NULL)
        return;

    list = e_source_registry_list_enabled (registry, extension_name);
    groups = g_hash_table_new_full (
        g_str_hash, g_str_equal,
        (GDestroyNotify) g_free, NULL);

    for (link = list; link != NULL; link = g_list_next (link)) {
        ESource *source = E_SOURCE (link->data);
        ESource *parent;
        WebKitDOMElement *option;
        WebKitDOMHTMLOptGroupElement *optgroup;

        parent = e_source_registry_ref_source (
            registry, e_source_get_parent (source));

        optgroup = g_hash_table_lookup (groups, e_source_get_uid (parent));
        if (!optgroup) {
            optgroup = WEBKIT_DOM_HTML_OPT_GROUP_ELEMENT (
                    webkit_dom_document_create_element (
                        view->priv->dom_document,
                        "OPTGROUP", NULL));
            webkit_dom_html_opt_group_element_set_label (
                optgroup, e_source_get_display_name (parent));
            g_hash_table_insert (
                groups, g_strdup (e_source_get_uid (parent)), optgroup);
        }
        g_object_unref (parent);

        option = webkit_dom_document_create_element (
            view->priv->dom_document, "OPTION", NULL);
        webkit_dom_html_option_element_set_value (
            WEBKIT_DOM_HTML_OPTION_ELEMENT (option),
            e_source_get_uid (source));
        webkit_dom_html_option_element_set_label (
            WEBKIT_DOM_HTML_OPTION_ELEMENT (option),
            e_source_get_display_name (source));
        webkit_dom_html_element_set_inner_html (
            WEBKIT_DOM_HTML_ELEMENT (option),
            e_source_get_display_name (source), NULL);

        /* See https://bugzilla.gnome.org/show_bug.cgi?id=681400
         * FIXME: This can be removed once we require WebKitGtk 1.10+ */
        #if WEBKIT_CHECK_VERSION (1, 9, 6)
            webkit_dom_element_set_class_name (
                WEBKIT_DOM_ELEMENT (option), "calendar");
        #else
            webkit_dom_html_element_set_class_name (
                WEBKIT_DOM_HTML_ELEMENT (option), "calendar");
        #endif

        if (!e_source_get_writable (source)) {
            webkit_dom_html_option_element_set_disabled (
                WEBKIT_DOM_HTML_OPTION_ELEMENT (option), TRUE);
        }

        webkit_dom_node_append_child (
            WEBKIT_DOM_NODE (optgroup),
            WEBKIT_DOM_NODE (option),
            NULL);
    }

    g_list_free_full (list, (GDestroyNotify) g_object_unref);

    list = g_hash_table_get_values (groups);
    for (link = list; link != NULL; link = g_list_next (link)) {
        WebKitDOMNode *optgroup = link->data;

        webkit_dom_node_append_child (
            WEBKIT_DOM_NODE (select), optgroup, NULL);
    }
    g_list_free (list);

    g_hash_table_destroy (groups);

    source_changed_cb (select, NULL, view);
}

static void
itip_view_source_added_cb (ESourceRegistry *registry,
                           ESource *source,
                           ItipView *view)
{
    const gchar *extension_name;

    extension_name = itip_view_get_extension_name (view);

    /* If we don't have an extension name set
     * yet then disregard the signal emission. */
    if (extension_name == NULL)
        return;

    if (e_source_has_extension (source, extension_name))
        itip_view_rebuild_source_list (view);
}

static void
itip_view_source_removed_cb (ESourceRegistry *registry,
                             ESource *source,
                             ItipView *view)
{
    const gchar *extension_name;

    extension_name = itip_view_get_extension_name (view);

    /* If we don't have an extension name set
     * yet then disregard the signal emission. */
    if (extension_name == NULL)
        return;

    if (e_source_has_extension (source, extension_name))
        itip_view_rebuild_source_list (view);
}

static void
itip_view_set_client_cache (ItipView *view,
                            EClientCache *client_cache)
{
    g_return_if_fail (E_IS_CLIENT_CACHE (client_cache));
    g_return_if_fail (view->priv->client_cache == NULL);

    view->priv->client_cache = g_object_ref (client_cache);
}

static void
itip_view_set_property (GObject *object,
                        guint property_id,
                        const GValue *value,
                        GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_CLIENT_CACHE:
            itip_view_set_client_cache (
                ITIP_VIEW (object),
                g_value_get_object (value));
            return;

        case PROP_EXTENSION_NAME:
            itip_view_set_extension_name (
                ITIP_VIEW (object),
                g_value_get_string (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
itip_view_get_property (GObject *object,
                        guint property_id,
                        GValue *value,
                        GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_CLIENT_CACHE:
            g_value_set_object (
                value,
                itip_view_get_client_cache (
                ITIP_VIEW (object)));
            return;

        case PROP_EXTENSION_NAME:
            g_value_set_string (
                value,
                itip_view_get_extension_name (
                ITIP_VIEW (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
itip_view_dispose (GObject *object)
{
    ItipViewPrivate *priv;

    priv = ITIP_VIEW_GET_PRIVATE (object);

    if (priv->source_added_handler_id > 0) {
        g_signal_handler_disconnect (
            priv->registry,
            priv->source_added_handler_id);
        priv->source_added_handler_id = 0;
    }

    if (priv->source_removed_handler_id > 0) {
        g_signal_handler_disconnect (
            priv->registry,
            priv->source_removed_handler_id);
        priv->source_removed_handler_id = 0;
    }

    g_clear_object (&priv->client_cache);
    g_clear_object (&priv->registry);

    /* Chain up to parent's dispose() method. */
    G_OBJECT_CLASS (itip_view_parent_class)->dispose (object);
}

static void
itip_view_finalize (GObject *object)
{
    ItipViewPrivate *priv;
    GSList *iter;

    priv = ITIP_VIEW_GET_PRIVATE (object);

    d (printf ("Itip view finalized!\n"));

    g_clear_object (&priv->dom_document);
    g_free (priv->extension_name);
    g_free (priv->sender);
    g_free (priv->organizer);
    g_free (priv->organizer_sentby);
    g_free (priv->delegator);
    g_free (priv->attendee);
    g_free (priv->attendee_sentby);
    g_free (priv->proxy);
    g_free (priv->summary);
    g_free (priv->location);
    g_free (priv->status);
    g_free (priv->comment);
    g_free (priv->start_tm);
    g_free (priv->start_label);
    g_free (priv->end_tm);
    g_free (priv->end_label);
    g_free (priv->description);
    g_free (priv->error);

    for (iter = priv->lower_info_items; iter; iter = iter->next) {
        ItipViewInfoItem *item = iter->data;
        g_free (item->message);
        g_free (item);
    }

    g_slist_free (priv->lower_info_items);

    for (iter = priv->upper_info_items; iter; iter = iter->next) {
        ItipViewInfoItem *item = iter->data;
        g_free (item->message);
        g_free (item);
    }

    g_slist_free (priv->upper_info_items);

    /* Chain up to parent's finalize() method. */
    G_OBJECT_CLASS (itip_view_parent_class)->finalize (object);
}

static void
itip_view_constructed (GObject *object)
{
    ItipView *view;
    EClientCache *client_cache;
    ESourceRegistry *registry;
    gulong handler_id;

    view = ITIP_VIEW (object);
    client_cache = itip_view_get_client_cache (view);
    registry = e_client_cache_ref_registry (client_cache);

    /* Keep our own reference on the ESourceRegistry
     * to use when disconnecting these signal handlers. */
    view->priv->registry = g_object_ref (registry);

    handler_id = g_signal_connect (
        view->priv->registry, "source-added",
        G_CALLBACK (itip_view_source_added_cb), view);
    view->priv->source_added_handler_id = handler_id;

    handler_id = g_signal_connect (
        view->priv->registry, "source-removed",
        G_CALLBACK (itip_view_source_removed_cb), view);
    view->priv->source_removed_handler_id = handler_id;

    g_object_unref (registry);

    /* Chain up to parent's constructed() method. */
    G_OBJECT_CLASS (itip_view_parent_class)->constructed (object);
}

static void
itip_view_class_init (ItipViewClass *class)
{
    GObjectClass *object_class;

    g_type_class_add_private (class, sizeof (ItipViewPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = itip_view_set_property;
    object_class->get_property = itip_view_get_property;
    object_class->dispose = itip_view_dispose;
    object_class->finalize = itip_view_finalize;
    object_class->constructed = itip_view_constructed;

    g_object_class_install_property (
        object_class,
        PROP_CLIENT_CACHE,
        g_param_spec_object (
            "client-cache",
            "Client Cache",
            "Cache of shared EClient instances",
            E_TYPE_CLIENT_CACHE,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT_ONLY));

    g_object_class_install_property (
        object_class,
        PROP_EXTENSION_NAME,
        g_param_spec_string (
            "extension-name",
            "Extension Name",
            "Show only data sources with this extension",
            NULL,
            G_PARAM_READWRITE));

    signals[SOURCE_SELECTED] = g_signal_new (
        "source_selected",
        G_TYPE_FROM_CLASS (class),
        G_SIGNAL_RUN_LAST,
        G_STRUCT_OFFSET (ItipViewClass, source_selected),
        NULL, NULL,
        g_cclosure_marshal_VOID__OBJECT,
        G_TYPE_NONE, 1,
        E_TYPE_SOURCE);

    signals[RESPONSE] = g_signal_new (
        "response",
        G_TYPE_FROM_CLASS (class),
        G_SIGNAL_RUN_LAST,
        G_STRUCT_OFFSET (ItipViewClass, response),
        NULL, NULL,
        g_cclosure_marshal_VOID__INT,
        G_TYPE_NONE, 1,
        G_TYPE_INT);
}

EMailPartItip *
itip_view_get_mail_part (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->itip_part;
}

EClientCache *
itip_view_get_client_cache (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->client_cache;
}

const gchar *
itip_view_get_extension_name (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->extension_name;
}

void
itip_view_set_extension_name (ItipView *view,
                              const gchar *extension_name)
{
    g_return_if_fail (ITIP_IS_VIEW (view));

    /* Avoid unnecessary rebuilds. */
    if (g_strcmp0 (extension_name, view->priv->extension_name) == 0)
        return;

    g_free (view->priv->extension_name);
    view->priv->extension_name = g_strdup (extension_name);

    g_object_notify (G_OBJECT (view), "extension-name");

    itip_view_rebuild_source_list (view);
}

void
itip_view_write (EMailFormatter *formatter,
                 GString *buffer)
{
    gchar *header = e_mail_formatter_get_html_header (formatter);
    g_string_append (buffer, header);
    g_free (header);

    g_string_append_printf (
        buffer,
        "<img src=\"gtk-stock://%s?size=%d\" class=\"itip icon\" />\n",
            MEETING_ICON, GTK_ICON_SIZE_BUTTON);

    g_string_append (
        buffer,
        "<div class=\"itip content\" id=\"" DIV_ITIP_CONTENT "\">\n");

        /* The first section listing the sender */
        /* FIXME What to do if the send and organizer do not match */
    g_string_append (
        buffer,
        "<div id=\"" TEXT_ROW_SENDER "\" class=\"itip sender\"></div>\n");

    g_string_append (buffer, "<hr>\n");

        /* Elementary event information */
    g_string_append (
        buffer,
        "<table class=\"itip table\" border=\"0\" "
        "cellspacing=\"5\" cellpadding=\"0\">\n");

    append_text_table_row (buffer, TABLE_ROW_SUMMARY, NULL, NULL);
    append_text_table_row (buffer, TABLE_ROW_LOCATION, _("Location:"), NULL);
    append_text_table_row (buffer, TABLE_ROW_START_DATE, _("Start time:"), NULL);
    append_text_table_row (buffer, TABLE_ROW_END_DATE, _("End time:"), NULL);
    append_text_table_row (buffer, TABLE_ROW_STATUS, _("Status:"), NULL);
    append_text_table_row (buffer, TABLE_ROW_COMMENT, _("Comment:"), NULL);

    g_string_append (buffer, "</table>\n");

    /* Upper Info items */
    g_string_append (
        buffer,
        "<table class=\"itip info\" id=\"" TABLE_UPPER_ITIP_INFO "\" border=\"0\" "
        "cellspacing=\"5\" cellpadding=\"0\">");

        /* Description */
    g_string_append (
        buffer,
        "<div id=\"" TABLE_ROW_DESCRIPTION "\" class=\"itip description\" hidden=\"\"></div>\n");

    g_string_append (buffer, "<hr>\n");

    /* Lower Info items */
    g_string_append (
        buffer,
        "<table class=\"itip info\" id=\"" TABLE_LOWER_ITIP_INFO "\" border=\"0\" "
        "cellspacing=\"5\" cellpadding=\"0\">");

    g_string_append (
        buffer,
        "<table class=\"itip table\" border=\"0\" "
        "cellspacing=\"5\" cellpadding=\"0\">\n");

    g_string_append (
        buffer,
        "<tr id=\"" TABLE_ROW_ESCB "\" hidden=\"\""">"
        "<th><label id=\"" TABLE_ROW_ESCB_LABEL "\" for=\"" SELECT_ESOURCE "\"></label></th>"
        "<td><select name=\"" SELECT_ESOURCE "\" id=\"" SELECT_ESOURCE "\"></select></td>"
        "</tr>\n");

    /* RSVP area */
    append_checkbox_table_row (buffer, CHECKBOX_RSVP, _("Send reply to sender"));

        /* Comments */
    g_string_append_printf (
        buffer,
        "<tr id=\"" TABLE_ROW_RSVP_COMMENT "\" hidden=\"\">"
        "<th>%s</th>"
        "<td><textarea name=\"" TEXTAREA_RSVP_COMMENT "\" "
        "id=\"" TEXTAREA_RSVP_COMMENT "\" "
        "rows=\"3\" cols=\"40\" disabled=\"\">"
        "</textarea></td>\n"
        "</tr>\n",
        _("Comment:"));

        /* Updates */
    append_checkbox_table_row (buffer, CHECKBOX_UPDATE, _("Send _updates to attendees"));

        /* The recurrence check button */
    append_checkbox_table_row (buffer, CHECKBOX_RECUR, _("_Apply to all instances"));
    append_checkbox_table_row (buffer, CHECKBOX_FREE_TIME, _("Show time as _free"));
    append_checkbox_table_row (buffer, CHECKBOX_KEEP_ALARM, _("_Preserve my reminder"));
    append_checkbox_table_row (buffer, CHECKBOX_INHERIT_ALARM, _("_Inherit reminder"));

    g_string_append (buffer, "</table>\n");

        /* Buttons table */
    append_buttons_table (buffer);

        /* <div class="itip content" > */
    g_string_append (buffer, "</div>\n");

    g_string_append (buffer, "<div class=\"itip error\" id=\"" DIV_ITIP_ERROR "\"></div>");

    g_string_append (buffer, "</body></html>");
}

void
itip_view_write_for_printing (ItipView *view,
                              GString *buffer)
{
    if (view->priv->error && *view->priv->error) {
        g_string_append (buffer, view->priv->error);
        return;
    }

    g_string_append (
        buffer,
        "<div class=\"itip print_content\" id=\"" DIV_ITIP_CONTENT "\">\n");

        /* The first section listing the sender */
    if (view->priv->sender && *view->priv->sender) {
        /* FIXME What to do if the send and organizer do not match */
        g_string_append_printf (
            buffer,
            "<div id=\"" TEXT_ROW_SENDER "\" class=\"itip sender\">%s</div>\n",
            view->priv->sender);

        g_string_append (buffer, "<hr>\n");
    }

        /* Elementary event information */
    g_string_append (
        buffer,
        "<table class=\"itip table\" border=\"0\" "
        "cellspacing=\"5\" cellpadding=\"0\">\n");

    append_text_table_row_nonempty (
        buffer, TABLE_ROW_SUMMARY,
        NULL, view->priv->summary);
    append_text_table_row_nonempty (
        buffer, TABLE_ROW_LOCATION,
        _("Location:"), view->priv->location);
    append_text_table_row_nonempty (
        buffer, TABLE_ROW_START_DATE,
        view->priv->start_header, view->priv->start_label);
    append_text_table_row_nonempty (
        buffer, TABLE_ROW_END_DATE,
        view->priv->end_header, view->priv->end_label);
    append_text_table_row_nonempty (
        buffer, TABLE_ROW_STATUS,
        _("Status:"), view->priv->status);
    append_text_table_row_nonempty (
        buffer, TABLE_ROW_COMMENT,
        _("Comment:"), view->priv->comment);

    g_string_append (buffer, "</table><br>\n");

        /* Description */
    if (view->priv->description && *view->priv->description) {
        g_string_append_printf (
            buffer,
            "<div id=\"" TABLE_ROW_DESCRIPTION "\" "
            "class=\"itip description\" %s>%s</div>\n",
            view->priv->description ? "" : "hidden=\"\"", view->priv->description);

        g_string_append (buffer, "</div>");
    }
}

void
itip_view_create_dom_bindings (ItipView *view,
                               WebKitDOMElement *element)
{
    WebKitDOMElement *el;
    WebKitDOMDocument *doc;

    doc = webkit_dom_node_get_owner_document (WEBKIT_DOM_NODE (element));
    view->priv->dom_document = g_object_ref (doc);

    el = webkit_dom_document_get_element_by_id (doc, CHECKBOX_RECUR);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (recur_toggled_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, CHECKBOX_RSVP);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (rsvp_toggled_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, CHECKBOX_INHERIT_ALARM);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (alarm_check_toggled_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, CHECKBOX_KEEP_ALARM);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (alarm_check_toggled_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, BUTTON_OPEN_CALENDAR);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (button_clicked_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, BUTTON_ACCEPT);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (button_clicked_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, BUTTON_ACCEPT_ALL);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (button_clicked_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, BUTTON_TENTATIVE);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (button_clicked_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, BUTTON_TENTATIVE_ALL);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (button_clicked_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, BUTTON_DECLINE);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (button_clicked_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, BUTTON_DECLINE_ALL);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (button_clicked_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, BUTTON_UPDATE);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (button_clicked_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, BUTTON_UPDATE_ATTENDEE_STATUS);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (button_clicked_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, BUTTON_SEND_INFORMATION);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (button_clicked_cb), FALSE, view);
    }

    el = webkit_dom_document_get_element_by_id (doc, SELECT_ESOURCE);
    if (el) {
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "change",
            G_CALLBACK (source_changed_cb), FALSE, view);
    }
}

static void
itip_view_init (ItipView *view)
{
    view->priv = ITIP_VIEW_GET_PRIVATE (view);

}

ItipView *
itip_view_new (EMailPartItip *puri,
               EClientCache *client_cache)
{
    ItipView *view;

    g_return_val_if_fail (E_IS_CLIENT_CACHE (client_cache), NULL);

    view = ITIP_VIEW (g_object_new (
        ITIP_TYPE_VIEW,
        "client-cache", client_cache,
        NULL));
    view->priv->itip_part = puri;

    return view;
}

static void
show_button (ItipView *view,
             const gchar *id)
{
    WebKitDOMElement *button;

    button = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, id);
    webkit_dom_html_element_set_hidden (
        WEBKIT_DOM_HTML_ELEMENT (button), FALSE);
}

void
itip_view_set_mode (ItipView *view,
                    ItipViewMode mode)
{
    WebKitDOMElement *row, *cell;
    WebKitDOMElement *button;

    g_return_if_fail (ITIP_IS_VIEW (view));

    view->priv->mode = mode;

    set_sender_text (view);

    if (!view->priv->dom_document)
        return;

    row = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TABLE_ROW_BUTTONS);
    cell = webkit_dom_element_get_first_element_child (row);
    do {
        button = webkit_dom_element_get_first_element_child (cell);
        webkit_dom_html_element_set_hidden (
            WEBKIT_DOM_HTML_ELEMENT (button), TRUE);
    } while ((cell = webkit_dom_element_get_next_element_sibling (cell)) != NULL);

    view->priv->is_recur_set = itip_view_get_recur_check_state (view);

        /* Always visible */
    show_button (view, BUTTON_OPEN_CALENDAR);

    switch (mode) {
    case ITIP_VIEW_MODE_PUBLISH:
        if (view->priv->needs_decline) {
            show_button (view, BUTTON_DECLINE);
        }
        show_button (view, BUTTON_ACCEPT);
        break;
    case ITIP_VIEW_MODE_REQUEST:
        show_button (view, view->priv->is_recur_set ? BUTTON_DECLINE_ALL : BUTTON_DECLINE);
        show_button (view, view->priv->is_recur_set ? BUTTON_TENTATIVE_ALL : BUTTON_TENTATIVE);
        show_button (view, view->priv->is_recur_set ? BUTTON_ACCEPT_ALL : BUTTON_ACCEPT);
        break;
    case ITIP_VIEW_MODE_ADD:
        if (view->priv->type != E_CAL_CLIENT_SOURCE_TYPE_MEMOS) {
            show_button (view, BUTTON_DECLINE);
            show_button (view, BUTTON_TENTATIVE);
        }
        show_button (view, BUTTON_ACCEPT);
        break;
    case ITIP_VIEW_MODE_REFRESH:
        show_button (view, BUTTON_SEND_INFORMATION);
        break;
    case ITIP_VIEW_MODE_REPLY:
        show_button (view, BUTTON_UPDATE_ATTENDEE_STATUS);
        break;
    case ITIP_VIEW_MODE_CANCEL:
        show_button (view, BUTTON_UPDATE);
        break;
    case ITIP_VIEW_MODE_COUNTER:
    case ITIP_VIEW_MODE_DECLINECOUNTER:
        show_button (view, BUTTON_DECLINE);
        show_button (view, BUTTON_TENTATIVE);
        show_button (view, BUTTON_ACCEPT);
        break;
    default:
        break;
    }
}

ItipViewMode
itip_view_get_mode (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), ITIP_VIEW_MODE_NONE);

    return view->priv->mode;
}

void
itip_view_set_item_type (ItipView *view,
                         ECalClientSourceType type)
{
    WebKitDOMElement *label;
    const gchar *header;
    gchar *access_key, *html_label;

    g_return_if_fail (ITIP_IS_VIEW (view));

    view->priv->type = type;

    if (!view->priv->dom_document)
        return;

    label = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TABLE_ROW_ESCB_LABEL);

    switch (view->priv->type) {
        case E_CAL_CLIENT_SOURCE_TYPE_EVENTS:
            header = _("_Calendar:");
            break;
        case E_CAL_CLIENT_SOURCE_TYPE_TASKS:
            header = _("_Tasks:");
            break;
        case E_CAL_CLIENT_SOURCE_TYPE_MEMOS:
            header = _("_Memos:");
            break;
        default:
            header = NULL;
            break;
    }

    if (!header) {
        set_sender_text (view);
        return;
    }

    html_label = e_mail_formatter_parse_html_mnemonics (header, &access_key);

    webkit_dom_html_element_set_access_key (
        WEBKIT_DOM_HTML_ELEMENT (label), access_key);
    webkit_dom_html_element_set_inner_html (
        WEBKIT_DOM_HTML_ELEMENT (label), html_label, NULL);

    g_free (html_label);

    if (access_key)
        g_free (access_key);

    set_sender_text (view);
}

ECalClientSourceType
itip_view_get_item_type (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), ITIP_VIEW_MODE_NONE);

    return view->priv->type;
}

void
itip_view_set_organizer (ItipView *view,
                         const gchar *organizer)
{
    g_return_if_fail (ITIP_IS_VIEW (view));

    if (view->priv->organizer)
        g_free (view->priv->organizer);

    view->priv->organizer = e_utf8_ensure_valid (organizer);

    set_sender_text (view);
}

const gchar *
itip_view_get_organizer (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->organizer;
}

void
itip_view_set_organizer_sentby (ItipView *view,
                                const gchar *sentby)
{
    g_return_if_fail (ITIP_IS_VIEW (view));

    if (view->priv->organizer_sentby)
        g_free (view->priv->organizer_sentby);

    view->priv->organizer_sentby = e_utf8_ensure_valid (sentby);

    set_sender_text (view);
}

const gchar *
itip_view_get_organizer_sentby (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->organizer_sentby;
}

void
itip_view_set_attendee (ItipView *view,
                        const gchar *attendee)
{
    g_return_if_fail (ITIP_IS_VIEW (view));

    if (view->priv->attendee)
        g_free (view->priv->attendee);

    view->priv->attendee = e_utf8_ensure_valid (attendee);

    set_sender_text (view);
}

const gchar *
itip_view_get_attendee (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->attendee;
}

void
itip_view_set_attendee_sentby (ItipView *view,
                               const gchar *sentby)
{
    g_return_if_fail (ITIP_IS_VIEW (view));

    if (view->priv->attendee_sentby)
        g_free (view->priv->attendee_sentby);

    view->priv->attendee_sentby = e_utf8_ensure_valid (sentby);

    set_sender_text (view);
}

const gchar *
itip_view_get_attendee_sentby (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->attendee_sentby;
}

void
itip_view_set_proxy (ItipView *view,
                     const gchar *proxy)
{
    g_return_if_fail (ITIP_IS_VIEW (view));

    if (view->priv->proxy)
        g_free (view->priv->proxy);

    view->priv->proxy = e_utf8_ensure_valid (proxy);

    set_sender_text (view);
}

const gchar *
itip_view_get_proxy (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->proxy;
}

void
itip_view_set_delegator (ItipView *view,
                         const gchar *delegator)
{
    g_return_if_fail (ITIP_IS_VIEW (view));

    if (view->priv->delegator)
        g_free (view->priv->delegator);

    view->priv->delegator = e_utf8_ensure_valid (delegator);

    set_sender_text (view);
}

const gchar *
itip_view_get_delegator (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->delegator;
}

void
itip_view_set_summary (ItipView *view,
                       const gchar *summary)
{
    WebKitDOMElement *row, *col;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (view->priv->summary)
        g_free (view->priv->summary);

    view->priv->summary = summary ? g_strstrip (e_utf8_ensure_valid (summary)) : NULL;

    if (!view->priv->dom_document)
        return;

    row = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TABLE_ROW_SUMMARY);
    webkit_dom_html_element_set_hidden (
        WEBKIT_DOM_HTML_ELEMENT (row), (view->priv->summary == NULL));

    col = webkit_dom_element_get_last_element_child (row);
    webkit_dom_html_element_set_inner_html (
        WEBKIT_DOM_HTML_ELEMENT (col),
        view->priv->summary ? view->priv->summary : "",
        NULL);
}

const gchar *
itip_view_get_summary (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->summary;
}

void
itip_view_set_location (ItipView *view,
                        const gchar *location)
{
    WebKitDOMElement *row, *col;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (view->priv->location)
        g_free (view->priv->location);

    view->priv->location = location ? g_strstrip (e_utf8_ensure_valid (location)) : NULL;

    if (!view->priv->dom_document)
        return;

    row = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TABLE_ROW_LOCATION);
    webkit_dom_html_element_set_hidden (
        WEBKIT_DOM_HTML_ELEMENT (row), (view->priv->location == NULL));

    col = webkit_dom_element_get_last_element_child (row);
    webkit_dom_html_element_set_inner_html (
        WEBKIT_DOM_HTML_ELEMENT (col),
        view->priv->location ? view->priv->location : "",
        NULL);
}

const gchar *
itip_view_get_location (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->location;
}

void
itip_view_set_status (ItipView *view,
                      const gchar *status)
{
    WebKitDOMElement *row, *col;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (view->priv->status)
        g_free (view->priv->status);

    view->priv->status = status ? g_strstrip (e_utf8_ensure_valid (status)) : NULL;

    if (!view->priv->dom_document)
        return;

    row = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TABLE_ROW_STATUS);
    webkit_dom_html_element_set_hidden (
        WEBKIT_DOM_HTML_ELEMENT (row), (view->priv->status == NULL));

    col = webkit_dom_element_get_last_element_child (row);
    webkit_dom_html_element_set_inner_html (
        WEBKIT_DOM_HTML_ELEMENT (col),
        view->priv->status ? view->priv->status : "",
        NULL);
}

const gchar *
itip_view_get_status (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->status;
}

void
itip_view_set_comment (ItipView *view,
                       const gchar *comment)
{
    WebKitDOMElement *row, *col;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (view->priv->comment)
        g_free (view->priv->comment);

    view->priv->comment = comment ? g_strstrip (e_utf8_ensure_valid (comment)) : NULL;

    if (!view->priv->dom_document)
        return;

    row = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TABLE_ROW_COMMENT);
    webkit_dom_html_element_set_hidden (
        WEBKIT_DOM_HTML_ELEMENT (row), (view->priv->comment == NULL));

    col = webkit_dom_element_get_last_element_child (row);
    webkit_dom_html_element_set_inner_html (
        WEBKIT_DOM_HTML_ELEMENT (col),
        view->priv->comment ? view->priv->comment : "",
        NULL);
}

const gchar *
itip_view_get_comment (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->comment;
}

void
itip_view_set_description (ItipView *view,
                           const gchar *description)
{
    WebKitDOMElement *div;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (view->priv->description)
        g_free (view->priv->description);

    view->priv->description = description ? g_strstrip (e_utf8_ensure_valid (description)) : NULL;

    if (!view->priv->dom_document)
        return;

    div = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TABLE_ROW_DESCRIPTION);
    webkit_dom_html_element_set_hidden (
        WEBKIT_DOM_HTML_ELEMENT (div), (view->priv->description == NULL));

    webkit_dom_html_element_set_inner_html (
        WEBKIT_DOM_HTML_ELEMENT (div),
        view->priv->description ? view->priv->description : "",
        NULL);
}

const gchar *
itip_view_get_description (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    return view->priv->description;
}

void
itip_view_set_start (ItipView *view,
                     struct tm *start,
                     gboolean is_date)
{
    ItipViewPrivate *priv;

    g_return_if_fail (ITIP_IS_VIEW (view));

    priv = view->priv;

    if (priv->start_tm && !start) {
        g_free (priv->start_tm);
        priv->start_tm = NULL;
    } else if (start) {
        if (!priv->start_tm)
            priv->start_tm = g_new0 (struct tm, 1);

        *priv->start_tm = *start;
    }

    priv->start_tm_is_date = is_date && start;

    update_start_end_times (view);
}

const struct tm *
itip_view_get_start (ItipView *view,
                     gboolean *is_date)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    if (is_date)
        *is_date = view->priv->start_tm_is_date;

    return view->priv->start_tm;
}

void
itip_view_set_end (ItipView *view,
                   struct tm *end,
                   gboolean is_date)
{
    ItipViewPrivate *priv;

    g_return_if_fail (ITIP_IS_VIEW (view));

    priv = view->priv;

    if (priv->end_tm && !end) {
        g_free (priv->end_tm);
        priv->end_tm = NULL;
    } else if (end) {
        if (!priv->end_tm)
            priv->end_tm = g_new0 (struct tm, 1);

        *priv->end_tm = *end;
    }

    priv->end_tm_is_date = is_date && end;

    update_start_end_times (view);
}

const struct tm *
itip_view_get_end (ItipView *view,
                   gboolean *is_date)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    if (is_date)
        *is_date = view->priv->end_tm_is_date;

    return view->priv->end_tm;
}

guint
itip_view_add_upper_info_item (ItipView *view,
                               ItipViewInfoItemType type,
                               const gchar *message)
{
    ItipViewPrivate *priv;
    ItipViewInfoItem *item;

    g_return_val_if_fail (ITIP_IS_VIEW (view), 0);

    priv = view->priv;

    item = g_new0 (ItipViewInfoItem, 1);

    item->type = type;
    item->message = e_utf8_ensure_valid (message);
    item->id = priv->next_info_item_id++;

    priv->upper_info_items = g_slist_append (priv->upper_info_items, item);

    if (!view->priv->dom_document)
        return item->id;

    append_info_item_row (view, TABLE_UPPER_ITIP_INFO, item);

    return item->id;
}

guint
itip_view_add_upper_info_item_printf (ItipView *view,
                                      ItipViewInfoItemType type,
                                      const gchar *format,
                                      ...)
{
    va_list args;
    gchar *message;
    guint id;

    g_return_val_if_fail (ITIP_IS_VIEW (view), 0);

    va_start (args, format);
    message = g_strdup_vprintf (format, args);
    va_end (args);

    id = itip_view_add_upper_info_item (view, type, message);
    g_free (message);

    return id;
}

void
itip_view_remove_upper_info_item (ItipView *view,
                                  guint id)
{
    ItipViewPrivate *priv;
    GSList *l;

    g_return_if_fail (ITIP_IS_VIEW (view));

    priv = view->priv;

    for (l = priv->upper_info_items; l; l = l->next) {
        ItipViewInfoItem *item = l->data;

        if (item->id == id) {
            priv->upper_info_items = g_slist_remove (priv->upper_info_items, item);

            g_free (item->message);
            g_free (item);

            if (!view->priv->dom_document)
                remove_info_item_row (view, TABLE_UPPER_ITIP_INFO, id);

            return;
        }
    }
}

void
itip_view_clear_upper_info_items (ItipView *view)
{
    ItipViewPrivate *priv;
    GSList *l;

    g_return_if_fail (ITIP_IS_VIEW (view));

    priv = view->priv;

    for (l = priv->upper_info_items; l; l = l->next) {
        ItipViewInfoItem *item = l->data;

        if (view->priv->dom_document)
            remove_info_item_row (view, TABLE_UPPER_ITIP_INFO, item->id);

        g_free (item->message);
        g_free (item);
    }

    g_slist_free (priv->upper_info_items);
    priv->upper_info_items = NULL;
}

guint
itip_view_add_lower_info_item (ItipView *view,
                               ItipViewInfoItemType type,
                               const gchar *message)
{
    ItipViewPrivate *priv;
    ItipViewInfoItem *item;

    g_return_val_if_fail (ITIP_IS_VIEW (view), 0);

    priv = view->priv;

    item = g_new0 (ItipViewInfoItem, 1);

    item->type = type;
    item->message = e_utf8_ensure_valid (message);
    item->id = priv->next_info_item_id++;

    priv->lower_info_items = g_slist_append (priv->lower_info_items, item);

    if (!view->priv->dom_document)
        return item->id;

    append_info_item_row (view, TABLE_LOWER_ITIP_INFO, item);

    return item->id;
}

guint
itip_view_add_lower_info_item_printf (ItipView *view,
                                      ItipViewInfoItemType type,
                                      const gchar *format,
                                      ...)
{
    va_list args;
    gchar *message;
    guint id;

    g_return_val_if_fail (ITIP_IS_VIEW (view), 0);

    va_start (args, format);
    message = g_strdup_vprintf (format, args);
    va_end (args);

    id = itip_view_add_lower_info_item (view, type, message);
    g_free (message);

    return id;
}

void
itip_view_remove_lower_info_item (ItipView *view,
                                  guint id)
{
    ItipViewPrivate *priv;
    GSList *l;

    g_return_if_fail (ITIP_IS_VIEW (view));

    priv = view->priv;

    for (l = priv->lower_info_items; l; l = l->next) {
        ItipViewInfoItem *item = l->data;

        if (item->id == id) {
            priv->lower_info_items = g_slist_remove (priv->lower_info_items, item);

            g_free (item->message);
            g_free (item);

            if (view->priv->dom_document)
                remove_info_item_row (view, TABLE_LOWER_ITIP_INFO, id);

            return;
        }
    }
}

void
itip_view_clear_lower_info_items (ItipView *view)
{
    ItipViewPrivate *priv;
    GSList *l;

    g_return_if_fail (ITIP_IS_VIEW (view));

    priv = view->priv;

    for (l = priv->lower_info_items; l; l = l->next) {
        ItipViewInfoItem *item = l->data;

        if (view->priv->dom_document)
            remove_info_item_row (view, TABLE_LOWER_ITIP_INFO, item->id);

        g_free (item->message);
        g_free (item);
    }

    g_slist_free (priv->lower_info_items);
    priv->lower_info_items = NULL;
}

void
itip_view_set_source (ItipView *view,
                      ESource *source)
{
    WebKitDOMElement *select;
    WebKitDOMElement *row;
    ESource *selected_source;
    gulong i, len;

    g_return_if_fail (ITIP_IS_VIEW (view));

    d (printf ("Settings default source '%s'\n", e_source_get_display_name (source)));

    if (!view->priv->dom_document)
        return;

    row = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TABLE_ROW_ESCB);
    webkit_dom_html_element_set_hidden (
        WEBKIT_DOM_HTML_ELEMENT (row), (source == NULL));
    if (source == NULL)
        return;

    select = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, SELECT_ESOURCE);

        /* <select> does not emit 'change' event when already selected
     * <option> is re-selected, but we need to notify itip formatter,
     * so that it would make all the buttons sensitive */
    selected_source = itip_view_ref_source (view);
    if (source == selected_source) {
        source_changed_cb (select, NULL, view);
        return;
    }

    if (selected_source != NULL)
        g_object_unref (selected_source);

    if (webkit_dom_html_select_element_get_disabled (
            WEBKIT_DOM_HTML_SELECT_ELEMENT (select))) {
        webkit_dom_html_select_element_set_disabled (
            WEBKIT_DOM_HTML_SELECT_ELEMENT (select), FALSE);
    }

    len = webkit_dom_html_select_element_get_length (
        WEBKIT_DOM_HTML_SELECT_ELEMENT (select));
    for (i = 0; i < len; i++) {

        WebKitDOMNode *node;
        WebKitDOMHTMLOptionElement *option;
        gchar *value;

        node = webkit_dom_html_select_element_item (
            WEBKIT_DOM_HTML_SELECT_ELEMENT (select), i);
        option = WEBKIT_DOM_HTML_OPTION_ELEMENT (node);

        value = webkit_dom_html_option_element_get_value (option);
        if (g_strcmp0 (value, e_source_get_uid (source)) == 0) {
            webkit_dom_html_option_element_set_selected (
                option, TRUE);

            g_free (value);
            break;
        }

        g_free (value);
    }

    source_changed_cb (select, NULL, view);
}

ESource *
itip_view_ref_source (ItipView *view)
{
    WebKitDOMElement *select;
    gchar *uid;
    ESource *source;
    gboolean disable = FALSE;

    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    if (!view->priv->dom_document)
        return NULL;

    select = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, SELECT_ESOURCE);
    if (webkit_dom_html_select_element_get_disabled (
            WEBKIT_DOM_HTML_SELECT_ELEMENT (select))) {
        webkit_dom_html_select_element_set_disabled (
        WEBKIT_DOM_HTML_SELECT_ELEMENT (select), FALSE);
        disable = TRUE;
    }

    uid = webkit_dom_html_select_element_get_value (
        WEBKIT_DOM_HTML_SELECT_ELEMENT (select));

    source = e_source_registry_ref_source (view->priv->registry, uid);

    g_free (uid);

    if (disable) {
        webkit_dom_html_select_element_set_disabled (
            WEBKIT_DOM_HTML_SELECT_ELEMENT (select), TRUE);
    }

    return source;
}

void
itip_view_set_rsvp (ItipView *view,
                    gboolean rsvp)
{
    WebKitDOMElement *el;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (!view->priv->dom_document)
        return;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_RSVP);
    webkit_dom_html_input_element_set_checked (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el), rsvp);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TEXTAREA_RSVP_COMMENT);
    webkit_dom_html_text_area_element_set_disabled (
        WEBKIT_DOM_HTML_TEXT_AREA_ELEMENT (el), !rsvp);
}

gboolean
itip_view_get_rsvp (ItipView *view)
{
    WebKitDOMElement *el;

    g_return_val_if_fail (ITIP_IS_VIEW (view), FALSE);

    if (!view->priv->dom_document)
        return FALSE;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_RSVP);
    return webkit_dom_html_input_element_get_checked (WEBKIT_DOM_HTML_INPUT_ELEMENT (el));
}

void
itip_view_set_show_rsvp_check (ItipView *view,
                               gboolean show)
{
    WebKitDOMElement *label;
    WebKitDOMElement *el;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (!view->priv->dom_document)
        return;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, "table_row_" CHECKBOX_RSVP);
    webkit_dom_html_element_set_hidden (WEBKIT_DOM_HTML_ELEMENT (el), !show);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_RSVP);
    label = webkit_dom_element_get_next_element_sibling (el);
    webkit_dom_html_element_set_hidden (WEBKIT_DOM_HTML_ELEMENT (label), !show);

    if (!show) {
        webkit_dom_html_input_element_set_checked (
            WEBKIT_DOM_HTML_INPUT_ELEMENT (el), FALSE);
    }

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TABLE_ROW_RSVP_COMMENT);
    webkit_dom_html_element_set_hidden (WEBKIT_DOM_HTML_ELEMENT (el), !show);
}

gboolean
itip_view_get_show_rsvp_check (ItipView *view)
{
    WebKitDOMElement *el;

    g_return_val_if_fail (ITIP_IS_VIEW (view), FALSE);

    if (!view->priv->dom_document)
        return FALSE;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_RSVP);
    return !webkit_dom_html_element_get_hidden (WEBKIT_DOM_HTML_ELEMENT (el));
}

void
itip_view_set_update (ItipView *view,
                      gboolean update)
{
    WebKitDOMElement *el;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (!view->priv->dom_document)
        return;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_UPDATE);

    webkit_dom_html_input_element_set_checked (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el), update);
}

gboolean
itip_view_get_update (ItipView *view)
{
    WebKitDOMElement *el;

    g_return_val_if_fail (ITIP_IS_VIEW (view), FALSE);

    if (!view->priv->dom_document)
        return FALSE;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_UPDATE);
    return webkit_dom_html_input_element_get_checked (WEBKIT_DOM_HTML_INPUT_ELEMENT (el));
}

void
itip_view_set_show_update_check (ItipView *view,
                                 gboolean show)
{
    WebKitDOMElement *label;
    WebKitDOMElement *el;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (!view->priv->dom_document)
        return;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, "table_row_" CHECKBOX_UPDATE);
    webkit_dom_html_element_set_hidden (WEBKIT_DOM_HTML_ELEMENT (el), !show);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_UPDATE);
    label = webkit_dom_element_get_next_element_sibling (el);
    webkit_dom_html_element_set_hidden (WEBKIT_DOM_HTML_ELEMENT (label), !show);

    if (!show) {
        webkit_dom_html_input_element_set_checked (
            WEBKIT_DOM_HTML_INPUT_ELEMENT (el), FALSE);
    }
}

gboolean
itip_view_get_show_update_check (ItipView *view)
{
    WebKitDOMElement *el;

    g_return_val_if_fail (ITIP_IS_VIEW (view), FALSE);

    if (!view->priv->dom_document)
        return FALSE;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_UPDATE);
    return !webkit_dom_html_element_get_hidden (WEBKIT_DOM_HTML_ELEMENT (el));
}

void
itip_view_set_rsvp_comment (ItipView *view,
                            const gchar *comment)
{
    WebKitDOMElement *el;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (!view->priv->dom_document)
        return;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TEXTAREA_RSVP_COMMENT);
    webkit_dom_html_element_set_hidden (
        WEBKIT_DOM_HTML_ELEMENT (el), (comment == NULL));

    if (comment) {
        webkit_dom_html_text_area_element_set_value (
            WEBKIT_DOM_HTML_TEXT_AREA_ELEMENT (el), comment);
    }
}

gchar *
itip_view_get_rsvp_comment (ItipView *view)
{
    WebKitDOMElement *el;

    g_return_val_if_fail (ITIP_IS_VIEW (view), NULL);

    if (!view->priv->dom_document)
        return NULL;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TEXTAREA_RSVP_COMMENT);

    if (webkit_dom_html_element_get_hidden (WEBKIT_DOM_HTML_ELEMENT (el))) {
        return NULL;
    }

    return webkit_dom_html_text_area_element_get_value (
        WEBKIT_DOM_HTML_TEXT_AREA_ELEMENT (el));
}

void
itip_view_set_needs_decline (ItipView *view,
                             gboolean needs_decline)
{
    g_return_if_fail (ITIP_IS_VIEW (view));

    view->priv->needs_decline = needs_decline;
}

void
itip_view_set_buttons_sensitive (ItipView *view,
                                 gboolean sensitive)
{
    WebKitDOMElement *el, *cell;

    g_return_if_fail (ITIP_IS_VIEW (view));

    d (printf ("Settings buttons %s\n", sensitive ? "sensitive" : "insensitive"));

    view->priv->buttons_sensitive = sensitive;

    if (!view->priv->dom_document)
        return;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_UPDATE);
    webkit_dom_html_input_element_set_disabled (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el), !sensitive);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_RECUR);
    webkit_dom_html_input_element_set_disabled (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el), !sensitive);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_FREE_TIME);
    webkit_dom_html_input_element_set_disabled (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el), !sensitive);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_KEEP_ALARM);
    webkit_dom_html_input_element_set_disabled (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el), !sensitive);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_INHERIT_ALARM);
    webkit_dom_html_input_element_set_disabled (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el), !sensitive);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_RSVP);
    webkit_dom_html_input_element_set_disabled (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el), !sensitive);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TEXTAREA_RSVP_COMMENT);
    webkit_dom_html_text_area_element_set_disabled (
        WEBKIT_DOM_HTML_TEXT_AREA_ELEMENT (el), !sensitive);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, TABLE_ROW_BUTTONS);
    cell = webkit_dom_element_get_first_element_child (el);
    do {
        WebKitDOMElement *btn;
        btn = webkit_dom_element_get_first_element_child (cell);
        if (!webkit_dom_html_element_get_hidden (
            WEBKIT_DOM_HTML_ELEMENT (btn))) {
            webkit_dom_html_button_element_set_disabled (
                WEBKIT_DOM_HTML_BUTTON_ELEMENT (btn), !sensitive);
        }
    } while ((cell = webkit_dom_element_get_next_element_sibling (cell)) != NULL);
}

gboolean
itip_view_get_buttons_sensitive (ItipView *view)
{
    g_return_val_if_fail (ITIP_IS_VIEW (view), FALSE);

    return view->priv->buttons_sensitive;
}

gboolean
itip_view_get_recur_check_state (ItipView *view)
{
    WebKitDOMElement *el;

    g_return_val_if_fail (ITIP_IS_VIEW (view), FALSE);

    if (!view->priv->dom_document)
        return FALSE;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_RECUR);
    return webkit_dom_html_input_element_get_checked (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el));
}

void
itip_view_set_show_recur_check (ItipView *view,
                                gboolean show)
{
    WebKitDOMElement *label;
    WebKitDOMElement *el;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (!view->priv->dom_document)
        return;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, "table_row_" CHECKBOX_RECUR);
    webkit_dom_html_element_set_hidden (WEBKIT_DOM_HTML_ELEMENT (el), !show);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_RECUR);
    label = webkit_dom_element_get_next_element_sibling (el);
    webkit_dom_html_element_set_hidden (WEBKIT_DOM_HTML_ELEMENT (label), !show);

    if (!show) {
        webkit_dom_html_input_element_set_checked (
            WEBKIT_DOM_HTML_INPUT_ELEMENT (el), FALSE);
    }

        /* and update state of the second check */
    alarm_check_toggled_cb (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el),
        NULL, view);
}

void
itip_view_set_show_free_time_check (ItipView *view,
                                    gboolean show)
{
    WebKitDOMElement *label;
    WebKitDOMElement *el;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (!view->priv->dom_document)
        return;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, "table_row_" CHECKBOX_FREE_TIME);
    webkit_dom_html_element_set_hidden (WEBKIT_DOM_HTML_ELEMENT (el), !show);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_FREE_TIME);
    label = webkit_dom_element_get_next_element_sibling (el);
    webkit_dom_html_element_set_hidden (WEBKIT_DOM_HTML_ELEMENT (label), !show);

    if (!show) {
        webkit_dom_html_input_element_set_checked (
            WEBKIT_DOM_HTML_INPUT_ELEMENT (el), FALSE);
    }

        /* and update state of the second check */
    alarm_check_toggled_cb (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el),
        NULL, view);
}

gboolean
itip_view_get_free_time_check_state (ItipView *view)
{
    WebKitDOMElement *el;

    g_return_val_if_fail (ITIP_IS_VIEW (view), FALSE);

    if (!view->priv->dom_document)
        return FALSE;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_FREE_TIME);
    return webkit_dom_html_input_element_get_checked (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el));
}

void
itip_view_set_show_keep_alarm_check (ItipView *view,
                                     gboolean show)
{
    WebKitDOMElement *label;
    WebKitDOMElement *el;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (!view->priv->dom_document)
        return;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, "table_row_" CHECKBOX_KEEP_ALARM);
    webkit_dom_html_element_set_hidden (WEBKIT_DOM_HTML_ELEMENT (el), !show);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_KEEP_ALARM);
    label = webkit_dom_element_get_next_element_sibling (el);
    webkit_dom_html_element_set_hidden (WEBKIT_DOM_HTML_ELEMENT (label), !show);

    if (!show) {
        webkit_dom_html_input_element_set_checked (
            WEBKIT_DOM_HTML_INPUT_ELEMENT (el), FALSE);
    }

        /* and update state of the second check */
    alarm_check_toggled_cb (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el),
        NULL, view);
}

gboolean
itip_view_get_keep_alarm_check_state (ItipView *view)
{
    WebKitDOMElement *el;

    g_return_val_if_fail (ITIP_IS_VIEW (view), FALSE);

    if (!view->priv->dom_document)
        return FALSE;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_KEEP_ALARM);
    return webkit_dom_html_input_element_get_checked (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el));
}

void
itip_view_set_show_inherit_alarm_check (ItipView *view,
                                        gboolean show)
{
    WebKitDOMElement *label;
    WebKitDOMElement *el;

    g_return_if_fail (ITIP_IS_VIEW (view));

    if (!view->priv->dom_document)
        return;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, "table_row_" CHECKBOX_INHERIT_ALARM);
    webkit_dom_html_element_set_hidden (WEBKIT_DOM_HTML_ELEMENT (el), !show);

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_INHERIT_ALARM);
    label = webkit_dom_element_get_next_element_sibling (el);
    webkit_dom_html_element_set_hidden (WEBKIT_DOM_HTML_ELEMENT (label), !show);

    if (!show) {
        webkit_dom_html_input_element_set_checked (
            WEBKIT_DOM_HTML_INPUT_ELEMENT (el), FALSE);
    }

    /* and update state of the second check */
    alarm_check_toggled_cb (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el),
        NULL, view);
}

gboolean
itip_view_get_inherit_alarm_check_state (ItipView *view)
{
    WebKitDOMElement *el;

    g_return_val_if_fail (ITIP_IS_VIEW (view), FALSE);

    if (!view->priv->dom_document)
        return FALSE;

    el = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, CHECKBOX_INHERIT_ALARM);
    return webkit_dom_html_input_element_get_checked (
        WEBKIT_DOM_HTML_INPUT_ELEMENT (el));
}

void
itip_view_set_error (ItipView *view,
                     const gchar *error_html,
                     gboolean show_save_btn)
{
    WebKitDOMElement *content, *error;
    GString *str;

    g_return_if_fail (ITIP_IS_VIEW (view));
    g_return_if_fail (error_html);

    str = g_string_new (error_html);

    if (show_save_btn) {
        g_string_append (
            str,
            "<table border=\"0\" width=\"100%\">"
            "<tr width=\"100%\" id=\"" TABLE_ROW_BUTTONS "\">");

        buttons_table_write_button (
            str, BUTTON_SAVE, _("Sa_ve"),
            GTK_STOCK_SAVE, ITIP_VIEW_RESPONSE_SAVE);

        g_string_append (str, "</tr></table>");
    }

    view->priv->error = str->str;
    g_string_free (str, FALSE);

    if (!view->priv->dom_document)
        return;

    content = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, DIV_ITIP_CONTENT);
    webkit_dom_html_element_set_hidden (
        WEBKIT_DOM_HTML_ELEMENT (content), TRUE);

    error = webkit_dom_document_get_element_by_id (
        view->priv->dom_document, DIV_ITIP_ERROR);
    webkit_dom_html_element_set_hidden (
        WEBKIT_DOM_HTML_ELEMENT (error), FALSE);

    webkit_dom_html_element_set_inner_html (
        WEBKIT_DOM_HTML_ELEMENT (error), view->priv->error, NULL);

    if (show_save_btn) {
        WebKitDOMElement *el;

        show_button (view, BUTTON_SAVE);

        el = webkit_dom_document_get_element_by_id (
            view->priv->dom_document, BUTTON_SAVE);
        webkit_dom_html_button_element_set_disabled (
            WEBKIT_DOM_HTML_BUTTON_ELEMENT (el), FALSE);
        webkit_dom_event_target_add_event_listener (
            WEBKIT_DOM_EVENT_TARGET (el), "click",
            G_CALLBACK (button_clicked_cb), FALSE, view);
    }
}

/******************************************************************************/

typedef struct {
    EMailPartItip *puri;
        ItipView *view;
    GCancellable *itip_cancellable;
    GCancellable *cancellable;
    gulong cancelled_id;
    gboolean keep_alarm_check;
    GHashTable *conflicts;

    gchar *uid;
    gchar *rid;

    gchar *sexp;

    gint count;
} FormatItipFindData;

static gboolean check_is_instance (icalcomponent *icalcomp);

static icalproperty *
find_attendee (icalcomponent *ical_comp,
               const gchar *address)
{
    icalproperty *prop;

    if (address == NULL)
        return NULL;

    for (prop = icalcomponent_get_first_property (ical_comp, ICAL_ATTENDEE_PROPERTY);
         prop != NULL;
         prop = icalcomponent_get_next_property (ical_comp, ICAL_ATTENDEE_PROPERTY)) {
        gchar *attendee;
        gchar *text;

        attendee = icalproperty_get_value_as_string_r (prop);

         if (!attendee)
            continue;

        text = g_strdup (itip_strip_mailto (attendee));
        text = g_strstrip (text);
        if (text && !g_ascii_strcasecmp (address, text)) {
            g_free (text);
            g_free (attendee);
            break;
        }
        g_free (text);
        g_free (attendee);
    }

    return prop;
}

static icalproperty *
find_attendee_if_sentby (icalcomponent *ical_comp,
                         const gchar *address)
{
    icalproperty *prop;

    if (address == NULL)
        return NULL;

    for (prop = icalcomponent_get_first_property (ical_comp, ICAL_ATTENDEE_PROPERTY);
         prop != NULL;
         prop = icalcomponent_get_next_property (ical_comp, ICAL_ATTENDEE_PROPERTY)) {
        icalparameter *param;
        const gchar *attendee_sentby;
        gchar *text;

        param = icalproperty_get_first_parameter (prop, ICAL_SENTBY_PARAMETER);
        if (!param)
            continue;

        attendee_sentby = icalparameter_get_sentby (param);

        if (!attendee_sentby)
            continue;

        text = g_strdup (itip_strip_mailto (attendee_sentby));
        text = g_strstrip (text);
        if (text && !g_ascii_strcasecmp (address, text)) {
            g_free (text);
            break;
        }
        g_free (text);
    }

    return prop;
}

static void
find_to_address (ItipView *view,
                 EMailPartItip *itip_part,
                 icalcomponent *ical_comp,
                 icalparameter_partstat *status)
{
    ESourceRegistry *registry;
    ESourceMailIdentity *extension;
    GList *list, *link;
    const gchar *extension_name;

    registry = view->priv->registry;
    extension_name = E_SOURCE_EXTENSION_MAIL_IDENTITY;

    if (itip_part->to_address != NULL)
        return;

    if (itip_part->msg != NULL && itip_part->folder != NULL) {
        ESource *source;

        source = em_utils_guess_mail_identity (
            registry, itip_part->msg,
            itip_part->folder, itip_part->uid);

        if (source != NULL) {
            extension = e_source_get_extension (source, extension_name);

            itip_part->to_address = e_source_mail_identity_dup_address (extension);

            g_object_unref (source);
        }
    }

    if (itip_part->to_address != NULL)
        return;

    /* Look through the list of attendees to find the user's address */
    list = e_source_registry_list_enabled (registry, extension_name);

    for (link = list; link != NULL; link = g_list_next (link)) {
        ESource *source = E_SOURCE (link->data);
        icalproperty *prop = NULL;
        icalparameter *param;
        const gchar *address;
        gchar *text;

        extension = e_source_get_extension (source, extension_name);
        address = e_source_mail_identity_get_address (extension);

        prop = find_attendee (ical_comp, address);
        if (prop == NULL)
            continue;

        param = icalproperty_get_first_parameter (prop, ICAL_CN_PARAMETER);
        if (param != NULL)
            itip_part->to_name = g_strdup (icalparameter_get_cn (param));

        text = icalproperty_get_value_as_string_r (prop);

        itip_part->to_address = g_strdup (itip_strip_mailto (text));
        g_free (text);
        g_strstrip (itip_part->to_address);

        itip_part->my_address = g_strdup (address);

        param = icalproperty_get_first_parameter (prop, ICAL_RSVP_PARAMETER);
        if (param != NULL &&
            icalparameter_get_rsvp (param) == ICAL_RSVP_FALSE)
            itip_part->no_reply_wanted = TRUE;

        if (status) {
            param = icalproperty_get_first_parameter (prop, ICAL_PARTSTAT_PARAMETER);
            *status = param ? icalparameter_get_partstat (param) : ICAL_PARTSTAT_NEEDSACTION;
        }

        break;
    }

    g_list_free_full (list, (GDestroyNotify) g_object_unref);

    if (itip_part->to_address != NULL)
        return;

    /* If the user's address was not found in the attendee's list,
     * then the user might be responding on behalf of his/her delegator.
     * In this case, we would want to go through the SENT-BY fields of
     * the attendees to find the user's address.
     *
 *
     * Note: This functionality could have been (easily) implemented
     * in the previous loop, but it would hurt the performance for all
     * providers in general. Hence, we choose to iterate through the
     * accounts list again.
     */

    list = e_source_registry_list_enabled (registry, extension_name);

    for (link = list; link != NULL; link = g_list_next (link)) {
        ESource *source = E_SOURCE (link->data);
        icalproperty *prop = NULL;
        icalparameter *param;
        const gchar *address;
        gchar *text;

        extension = e_source_get_extension (source, extension_name);
        address = e_source_mail_identity_get_address (extension);

        prop = find_attendee_if_sentby (ical_comp, address);
        if (prop == NULL)
            continue;

        param = icalproperty_get_first_parameter (prop, ICAL_CN_PARAMETER);
        if (param != NULL)
            itip_part->to_name = g_strdup (icalparameter_get_cn (param));

        text = icalproperty_get_value_as_string_r (prop);

        itip_part->to_address = g_strdup (itip_strip_mailto (text));
        g_free (text);
        g_strstrip (itip_part->to_address);

        itip_part->my_address = g_strdup (address);

        param = icalproperty_get_first_parameter (prop, ICAL_RSVP_PARAMETER);
        if (param != NULL &&
            ICAL_RSVP_FALSE == icalparameter_get_rsvp (param))
            itip_part->no_reply_wanted = TRUE;

        if (status) {
            param = icalproperty_get_first_parameter (prop, ICAL_PARTSTAT_PARAMETER);
            *status = param ? icalparameter_get_partstat (param) : ICAL_PARTSTAT_NEEDSACTION;
        }

        break;
    }

    g_list_free_full (list, (GDestroyNotify) g_object_unref);
}

static void
find_from_address (ItipView *view,
                   EMailPartItip *pitip,
                   icalcomponent *ical_comp)
{
    ESourceRegistry *registry;
    GList *list, *link;
    icalproperty *prop;
    gchar *organizer;
    icalparameter *param;
    const gchar *extension_name;
    const gchar *organizer_sentby;
    gchar *organizer_clean = NULL;
    gchar *organizer_sentby_clean = NULL;

    registry = view->priv->registry;

    prop = icalcomponent_get_first_property (ical_comp, ICAL_ORGANIZER_PROPERTY);

    if (!prop)
        return;

    organizer = icalproperty_get_value_as_string_r (prop);
    if (organizer) {
        organizer_clean = g_strdup (itip_strip_mailto (organizer));
        organizer_clean = g_strstrip (organizer_clean);
        g_free (organizer);
    }

    param = icalproperty_get_first_parameter (prop, ICAL_SENTBY_PARAMETER);
    if (param) {
        organizer_sentby = icalparameter_get_sentby (param);
        if (organizer_sentby) {
            organizer_sentby_clean = g_strdup (itip_strip_mailto (organizer_sentby));
            organizer_sentby_clean = g_strstrip (organizer_sentby_clean);
        }
    }

    if (!(organizer_sentby_clean || organizer_clean))
        return;

    pitip->from_address = g_strdup (organizer_clean);

    param = icalproperty_get_first_parameter (prop, ICAL_CN_PARAMETER);
    if (param)
        pitip->from_name = g_strdup (icalparameter_get_cn (param));

    extension_name = E_SOURCE_EXTENSION_MAIL_IDENTITY;
    list = e_source_registry_list_enabled (registry, extension_name);

    for (link = list; link != NULL; link = g_list_next (link)) {
        ESource *source = E_SOURCE (link->data);
        ESourceMailIdentity *extension;
        const gchar *address;

        extension = e_source_get_extension (source, extension_name);
        address = e_source_mail_identity_get_address (extension);

        if (address == NULL)
            continue;

        if ((organizer_clean && !g_ascii_strcasecmp (organizer_clean, address))
            || (organizer_sentby_clean && !g_ascii_strcasecmp (organizer_sentby_clean, address))) {
            pitip->my_address = g_strdup (address);

            break;
        }
    }

    g_list_free_full (list, (GDestroyNotify) g_object_unref);

    g_free (organizer_sentby_clean);
    g_free (organizer_clean);
}

static ECalComponent *
get_real_item (EMailPartItip *pitip)
{
    ECalComponent *comp = NULL;
    ESource *source;

    source = e_client_get_source (E_CLIENT (pitip->current_client));
    if (source)
        comp = g_hash_table_lookup (pitip->real_comps, e_source_get_uid (source));

    if (!comp) {
        return NULL;
    }

    return e_cal_component_clone (comp);
}

static void
adjust_item (EMailPartItip *pitip,
             ECalComponent *comp)
{
    ECalComponent *real_comp;

    real_comp = get_real_item (pitip);
    if (real_comp != NULL) {
        ECalComponentText text;
        const gchar *string;
        GSList *l;

        e_cal_component_get_summary (real_comp, &text);
        e_cal_component_set_summary (comp, &text);
        e_cal_component_get_location (real_comp, &string);
        e_cal_component_set_location (comp, string);
        e_cal_component_get_description_list (real_comp, &l);
        e_cal_component_set_description_list (comp, l);
        e_cal_component_free_text_list (l);

        g_object_unref (real_comp);
    } else {
        ECalComponentText text = {_("Unknown"), NULL};

        e_cal_component_set_summary (comp, &text);
    }
}

static gboolean
same_attendee_status (EMailPartItip *pitip,
                      ECalComponent *received_comp)
{
    ECalComponent *saved_comp;
    GSList *received_attendees = NULL, *saved_attendees = NULL, *riter, *siter;
    gboolean same = FALSE;

    g_return_val_if_fail (pitip != NULL, FALSE);

    saved_comp = get_real_item (pitip);
    if (!saved_comp)
        return FALSE;

    e_cal_component_get_attendee_list (received_comp, &received_attendees);
    e_cal_component_get_attendee_list (saved_comp, &saved_attendees);

    same = received_attendees && saved_attendees;

    for (riter = received_attendees; same && riter; riter = g_slist_next (riter)) {
        const ECalComponentAttendee *rattendee = riter->data;

        if (!rattendee) {
            same = FALSE;
            continue;
        }

        /* no need to create a hash table for quicker searches, there might
         * be one attendee in the received component only */
        for (siter = saved_attendees; siter; siter = g_slist_next (siter)) {
            const ECalComponentAttendee *sattendee = siter->data;

            if (!sattendee)
                continue;

            if (rattendee->value && sattendee->value &&
                g_ascii_strcasecmp (rattendee->value, sattendee->value) == 0) {
                same = rattendee->status == sattendee->status;
                break;
            }
        }

        /* received attendee was not found in the saved attendees */
        if (!siter)
            same = FALSE;
    }

    e_cal_component_free_attendee_list (received_attendees);
    e_cal_component_free_attendee_list (saved_attendees);
    g_object_unref (saved_comp);

    return same;
}

static void
set_buttons_sensitive (EMailPartItip *pitip,
                       ItipView *view)
{
    gboolean enabled = pitip->current_client != NULL;

    if (enabled && pitip->current_client)
        enabled = !e_client_is_readonly (E_CLIENT (pitip->current_client));

    itip_view_set_buttons_sensitive (view, enabled);

    if (enabled && itip_view_get_mode (view) == ITIP_VIEW_MODE_REPLY &&
        pitip->comp && same_attendee_status (pitip, pitip->comp)) {
        itip_view_add_lower_info_item (
            view, ITIP_VIEW_INFO_ITEM_TYPE_INFO,
            _("Attendee status updated"));

        if (view->priv->dom_document) {
            WebKitDOMElement *el;

            el = webkit_dom_document_get_element_by_id (
                view->priv->dom_document, BUTTON_UPDATE_ATTENDEE_STATUS);
            webkit_dom_html_button_element_set_disabled (
                WEBKIT_DOM_HTML_BUTTON_ELEMENT (el), TRUE);
        }
    }
}

static void
add_failed_to_load_msg (ItipView *view,
                        const GError *error)
{
    g_return_if_fail (view != NULL);
    g_return_if_fail (error != NULL);

    itip_view_add_lower_info_item (
        view, ITIP_VIEW_INFO_ITEM_TYPE_WARNING, error->message);
}

static void
itip_view_cal_opened_cb (GObject *source_object,
                         GAsyncResult *result,
                         gpointer user_data)
{
    ItipView *view;
    EMailPartItip *pitip;
    EClient *client;
    GError *error = NULL;

    view = ITIP_VIEW (user_data);
    pitip = itip_view_get_mail_part (view);

    client = e_client_cache_get_client_finish (
        E_CLIENT_CACHE (source_object), result, &error);

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

    /* Ignore cancellations. */
    if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
        g_error_free (error);
        goto exit;

    } else if (error != NULL) {
        add_failed_to_load_msg (view, error);
        g_error_free (error);
        goto exit;
    }

    if (e_cal_client_check_recurrences_no_master (E_CAL_CLIENT (client))) {
        icalcomponent *icalcomp;
        gboolean show_recur_check;

        icalcomp = e_cal_component_get_icalcomponent (pitip->comp);

        show_recur_check = check_is_instance (icalcomp);
        itip_view_set_show_recur_check (view, show_recur_check);
    }

    if (pitip->type == E_CAL_CLIENT_SOURCE_TYPE_MEMOS) {
        gboolean needs_decline;

        needs_decline = e_client_check_capability (
            client,
            CAL_STATIC_CAPABILITY_HAS_UNACCEPTED_MEETING);
        itip_view_set_needs_decline (view, needs_decline);
        itip_view_set_mode (view, ITIP_VIEW_MODE_PUBLISH);
    }

    pitip->current_client = g_object_ref (client);

    set_buttons_sensitive (pitip, view);

exit:
    g_clear_object (&client);
    g_clear_object (&view);
}

static void
start_calendar_server (EMailPartItip *pitip,
                       ItipView *view,
                       ESource *source,
                       ECalClientSourceType type,
                       GAsyncReadyCallback func,
                       gpointer data)
{
    EClientCache *client_cache;
    const gchar *extension_name = NULL;

    g_return_if_fail (source != NULL);

    switch (type) {
        case E_CAL_CLIENT_SOURCE_TYPE_EVENTS:
            extension_name = E_SOURCE_EXTENSION_CALENDAR;
            break;
        case E_CAL_CLIENT_SOURCE_TYPE_MEMOS:
            extension_name = E_SOURCE_EXTENSION_MEMO_LIST;
            break;
        case E_CAL_CLIENT_SOURCE_TYPE_TASKS:
            extension_name = E_SOURCE_EXTENSION_TASK_LIST;
            break;
        default:
            g_return_if_reached ();
    }

    client_cache = itip_view_get_client_cache (view);

    e_client_cache_get_client (
        client_cache, source, extension_name,
        pitip->cancellable, func, data);
}

static void
start_calendar_server_by_uid (EMailPartItip *pitip,
                              ItipView *view,
                              const gchar *uid,
                              ECalClientSourceType type)
{
    ESource *source;

    itip_view_set_buttons_sensitive (view, FALSE);

    source = e_source_registry_ref_source (view->priv->registry, uid);

    if (source != NULL) {
        start_calendar_server (
            pitip, view, source, type,
            itip_view_cal_opened_cb,
            g_object_ref (view));
        g_object_unref (source);
    }
}

static void
source_selected_cb (ItipView *view,
                    ESource *source,
                    gpointer data)
{
    EMailPartItip *pitip = data;

    itip_view_set_buttons_sensitive (view, FALSE);

    g_return_if_fail (source != NULL);

    start_calendar_server (
        pitip, view, source, pitip->type,
        itip_view_cal_opened_cb,
        g_object_ref (view));
}

static void
find_cal_update_ui (FormatItipFindData *fd,
                    ECalClient *cal_client)
{
    EMailPartItip *pitip;
    ItipView *view;
    ESource *source;

    g_return_if_fail (fd != NULL);

    pitip = fd->puri;
    view = fd->view;

    /* UI part gone */
    if (g_cancellable_is_cancelled (fd->cancellable))
        return;

    source = cal_client ? e_client_get_source (E_CLIENT (cal_client)) : NULL;

    if (cal_client && g_hash_table_lookup (fd->conflicts, cal_client)) {
        itip_view_add_upper_info_item_printf (
            view, ITIP_VIEW_INFO_ITEM_TYPE_WARNING,
            _("An appointment in the calendar "
            "'%s' conflicts with this meeting"),
            e_source_get_display_name (source));
    }

    /* search for a master object if the detached object doesn't exist in the calendar */
    if (pitip->current_client && pitip->current_client == cal_client) {
        gboolean rsvp_enabled = FALSE;

        itip_view_set_show_keep_alarm_check (view, fd->keep_alarm_check);

        pitip->current_client = cal_client;

        /* Provide extra info, since its not in the component */
        /* FIXME Check sequence number of meeting? */
        /* FIXME Do we need to adjust elsewhere for the delegated calendar item? */
        /* FIXME Need to update the fields in the view now */
        if (pitip->method == ICAL_METHOD_REPLY || pitip->method == ICAL_METHOD_REFRESH)
            adjust_item (pitip, pitip->comp);

        /* We clear everything because we don't really care
         * about any other info/warnings now we found an
         * existing versions */
        itip_view_clear_lower_info_items (view);
        pitip->progress_info_id = 0;

        /* FIXME Check read only state of calendar? */
        itip_view_add_lower_info_item_printf (
            view, ITIP_VIEW_INFO_ITEM_TYPE_INFO,
            _("Found the appointment in the calendar '%s'"), e_source_get_display_name (source));

        /*
         * Only allow replies if backend doesn't do that automatically.
         * Only enable it for forwarded invitiations (PUBLISH) or direct
         * invitiations (REQUEST), but not replies (REPLY).
         * Replies only make sense for events with an organizer.
         */
        if ((!pitip->current_client || !e_cal_client_check_save_schedules (pitip->current_client)) &&
            (pitip->method == ICAL_METHOD_PUBLISH || pitip->method ==  ICAL_METHOD_REQUEST) &&
            pitip->has_organizer) {
            rsvp_enabled = TRUE;
        }
        itip_view_set_show_rsvp_check (view, rsvp_enabled);

        /* default is chosen in extract_itip_data() based on content of the VEVENT */
        itip_view_set_rsvp (view, !pitip->no_reply_wanted);

        set_buttons_sensitive (pitip, view);

        g_cancellable_cancel (fd->cancellable);
    } else if (!pitip->current_client)
        itip_view_set_show_keep_alarm_check (view, FALSE);

    if (pitip->current_client && pitip->current_client == cal_client) {
        if (e_cal_client_check_recurrences_no_master (pitip->current_client)) {
            icalcomponent *icalcomp = e_cal_component_get_icalcomponent (pitip->comp);

            if (check_is_instance (icalcomp))
                itip_view_set_show_recur_check (view, TRUE);
            else
                itip_view_set_show_recur_check (view, FALSE);
        }

        if (pitip->type == E_CAL_CLIENT_SOURCE_TYPE_MEMOS) {
            /* TODO The static capability should be made generic to convey that the calendar contains unaccepted items */
            if (e_client_check_capability (E_CLIENT (pitip->current_client), CAL_STATIC_CAPABILITY_HAS_UNACCEPTED_MEETING))
                itip_view_set_needs_decline (view, TRUE);
            else
                itip_view_set_needs_decline (view, FALSE);

            itip_view_set_mode (view, ITIP_VIEW_MODE_PUBLISH);
        }
    }
}

static void
decrease_find_data (FormatItipFindData *fd)
{
    g_return_if_fail (fd != NULL);

    fd->count--;
    d (printf ("Decreasing itip formatter search count to %d\n", fd->count));

    if (fd->count == 0 && !g_cancellable_is_cancelled (fd->cancellable)) {
        gboolean rsvp_enabled = FALSE;
        EMailPartItip *pitip = fd->puri;
        ItipView *view = fd->view;

        itip_view_remove_lower_info_item (view, pitip->progress_info_id);
        pitip->progress_info_id = 0;

        /*
         * Only allow replies if backend doesn't do that automatically.
         * Only enable it for forwarded invitiations (PUBLISH) or direct
         * invitiations (REQUEST), but not replies (REPLY).
         * Replies only make sense for events with an organizer.
         */
        if ((!pitip->current_client || !e_cal_client_check_save_schedules (pitip->current_client)) &&
            (pitip->method == ICAL_METHOD_PUBLISH || pitip->method ==  ICAL_METHOD_REQUEST) &&
            pitip->has_organizer) {
            rsvp_enabled = TRUE;
        }
        itip_view_set_show_rsvp_check (view, rsvp_enabled);

        /* default is chosen in extract_itip_data() based on content of the VEVENT */
        itip_view_set_rsvp (view, !pitip->no_reply_wanted);

        if ((pitip->method == ICAL_METHOD_PUBLISH || pitip->method ==  ICAL_METHOD_REQUEST)
            && !pitip->current_client) {
            /* Reuse already declared one or rename? */
            ESource *source = NULL;
            const gchar *extension_name;

            switch (pitip->type) {
                case E_CAL_CLIENT_SOURCE_TYPE_EVENTS:
                    extension_name = E_SOURCE_EXTENSION_CALENDAR;
                    break;
                case E_CAL_CLIENT_SOURCE_TYPE_TASKS:
                    extension_name = E_SOURCE_EXTENSION_TASK_LIST;
                    break;
                case E_CAL_CLIENT_SOURCE_TYPE_MEMOS:
                    extension_name = E_SOURCE_EXTENSION_MEMO_LIST;
                    break;
                default:
                    g_return_if_reached ();
            }

            source = e_source_registry_ref_default_for_extension_name (
                view->priv->registry, extension_name);

            itip_view_set_extension_name (view, extension_name);

            g_signal_connect (
                view, "source_selected",
                G_CALLBACK (source_selected_cb), pitip);

            if (source != NULL) {
                itip_view_set_source (view, source);
                g_object_unref (source);

                /* FIXME Shouldn't the buttons be sensitized here? */
            } else {
                itip_view_add_lower_info_item (view, ITIP_VIEW_INFO_ITEM_TYPE_ERROR, _("Unable to find any calendars"));
                itip_view_set_buttons_sensitive (view, FALSE);
            }
        } else if (!pitip->current_client) {
            switch (pitip->type) {
            case E_CAL_CLIENT_SOURCE_TYPE_EVENTS:
                itip_view_add_lower_info_item_printf (
                    view, ITIP_VIEW_INFO_ITEM_TYPE_WARNING,
                    _("Unable to find this meeting in any calendar"));
                break;
            case E_CAL_CLIENT_SOURCE_TYPE_TASKS:
                itip_view_add_lower_info_item_printf (
                    view, ITIP_VIEW_INFO_ITEM_TYPE_WARNING,
                    _("Unable to find this task in any task list"));
                break;
            case E_CAL_CLIENT_SOURCE_TYPE_MEMOS:
                itip_view_add_lower_info_item_printf (
                    view, ITIP_VIEW_INFO_ITEM_TYPE_WARNING,
                    _("Unable to find this memo in any memo list"));
                break;
            default:
                g_assert_not_reached ();
                break;
            }
        }
    }

    if (fd->count == 0) {
        g_hash_table_destroy (fd->conflicts);
        g_cancellable_disconnect (fd->itip_cancellable, fd->cancelled_id);
        g_object_unref (fd->cancellable);
        g_object_unref (fd->itip_cancellable);
        g_object_unref (fd->view);
        g_free (fd->uid);
        g_free (fd->rid);
        if (fd->sexp)
            g_free (fd->sexp);
        g_free (fd);
    }
}

static void
get_object_without_rid_ready_cb (GObject *source_object,
                                 GAsyncResult *result,
                                 gpointer user_data)
{
    ECalClient *cal_client = E_CAL_CLIENT (source_object);
    FormatItipFindData *fd = user_data;
    icalcomponent *icalcomp = NULL;
    GError *error = NULL;

    e_cal_client_get_object_finish (cal_client, result, &icalcomp, &error);

    if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED) ||
        g_cancellable_is_cancelled (fd->cancellable)) {
        g_clear_error (&error);
        find_cal_update_ui (fd, cal_client);
        decrease_find_data (fd);
        return;
    }

    g_clear_error (&error);

    if (icalcomp) {
        ECalComponent *comp;

        fd->puri->current_client = cal_client;
        fd->keep_alarm_check = (fd->puri->method == ICAL_METHOD_PUBLISH || fd->puri->method ==  ICAL_METHOD_REQUEST) &&
            (icalcomponent_get_first_component (icalcomp, ICAL_VALARM_COMPONENT) ||
            icalcomponent_get_first_component (icalcomp, ICAL_XAUDIOALARM_COMPONENT) ||
            icalcomponent_get_first_component (icalcomp, ICAL_XDISPLAYALARM_COMPONENT) ||
            icalcomponent_get_first_component (icalcomp, ICAL_XPROCEDUREALARM_COMPONENT) ||
            icalcomponent_get_first_component (icalcomp, ICAL_XEMAILALARM_COMPONENT));

        comp = e_cal_component_new_from_icalcomponent (icalcomp);
        if (comp) {
            ESource *source = e_client_get_source (E_CLIENT (cal_client));

            g_hash_table_insert (fd->puri->real_comps, g_strdup (e_source_get_uid (source)), comp);
        }

        find_cal_update_ui (fd, cal_client);
        decrease_find_data (fd);
        return;
    }

    find_cal_update_ui (fd, cal_client);
    decrease_find_data (fd);
}

static void
get_object_with_rid_ready_cb (GObject *source_object,
                              GAsyncResult *result,
                              gpointer user_data)
{
    ECalClient *cal_client = E_CAL_CLIENT (source_object);
    FormatItipFindData *fd = user_data;
    icalcomponent *icalcomp = NULL;
    GError *error = NULL;

    e_cal_client_get_object_finish (cal_client, result, &icalcomp, &error);

    if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED) ||
        g_cancellable_is_cancelled (fd->cancellable)) {
        g_clear_error (&error);
        find_cal_update_ui (fd, cal_client);
        decrease_find_data (fd);
        return;
    }

    g_clear_error (&error);

    if (icalcomp) {
        ECalComponent *comp;

        fd->puri->current_client = cal_client;
        fd->keep_alarm_check = (fd->puri->method == ICAL_METHOD_PUBLISH || fd->puri->method ==  ICAL_METHOD_REQUEST) &&
            (icalcomponent_get_first_component (icalcomp, ICAL_VALARM_COMPONENT) ||
            icalcomponent_get_first_component (icalcomp, ICAL_XAUDIOALARM_COMPONENT) ||
            icalcomponent_get_first_component (icalcomp, ICAL_XDISPLAYALARM_COMPONENT) ||
            icalcomponent_get_first_component (icalcomp, ICAL_XPROCEDUREALARM_COMPONENT) ||
            icalcomponent_get_first_component (icalcomp, ICAL_XEMAILALARM_COMPONENT));

        comp = e_cal_component_new_from_icalcomponent (icalcomp);
        if (comp) {
            ESource *source = e_client_get_source (E_CLIENT (cal_client));

            g_hash_table_insert (fd->puri->real_comps, g_strdup (e_source_get_uid (source)), comp);
        }

        find_cal_update_ui (fd, cal_client);
        decrease_find_data (fd);
        return;
    }

    if (fd->rid && *fd->rid) {
        e_cal_client_get_object (cal_client, fd->uid, NULL, fd->cancellable, get_object_without_rid_ready_cb, fd);
        return;
    }

    find_cal_update_ui (fd, cal_client);
    decrease_find_data (fd);
}

static void
get_object_list_ready_cb (GObject *source_object,
                          GAsyncResult *result,
                          gpointer user_data)
{
    ECalClient *cal_client = E_CAL_CLIENT (source_object);
    FormatItipFindData *fd = user_data;
    GSList *objects = NULL;
    GError *error = NULL;

    e_cal_client_get_object_list_finish (
        cal_client, result, &objects, &error);

    if (g_cancellable_is_cancelled (fd->cancellable)) {
        g_clear_error (&error);
        decrease_find_data (fd);
        return;
    }

    if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
        g_error_free (error);
        decrease_find_data (fd);
        return;

    } else if (error != NULL) {
        g_error_free (error);

    } else {
        g_hash_table_insert (
            fd->conflicts, cal_client,
            GINT_TO_POINTER (g_slist_length (objects)));
        e_cal_client_free_icalcomp_slist (objects);
    }

    e_cal_client_get_object (
        cal_client, fd->uid, fd->rid, fd->cancellable,
        get_object_with_rid_ready_cb, fd);
}

static void
find_cal_opened_cb (GObject *source_object,
                    GAsyncResult *result,
                    gpointer user_data)
{
    FormatItipFindData *fd = user_data;
    EMailPartItip *pitip = fd->puri;
    ItipView *view = fd->view;
    EClient *client;
    ESource *source;
    ECalClient *cal_client;
    gboolean search_for_conflicts = FALSE;
    const gchar *extension_name;
    GError *error = NULL;

    client = e_client_cache_get_client_finish (
        E_CLIENT_CACHE (source_object), result, &error);

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

    /* Ignore cancellations. */
    if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
        decrease_find_data (fd);
        g_error_free (error);
        return;
    }

    if (g_cancellable_is_cancelled (fd->cancellable)) {
        g_clear_error (&error);
        decrease_find_data (fd);
        return;
    }

    if (error != NULL) {
        /* FIXME Do we really want to warn here?  If we fail
         * to find the item, this won't be cleared but the
         * selector might be shown */
        add_failed_to_load_msg (view, error);
        decrease_find_data (fd);
        g_error_free (error);
        return;
    }

    /* Do not process read-only calendars */
    if (e_client_is_readonly (client)) {
        g_object_unref (client);
        decrease_find_data (fd);
        return;
    }

    cal_client = E_CAL_CLIENT (client);

    source = e_client_get_source (client);

    extension_name = E_SOURCE_EXTENSION_CONFLICT_SEARCH;
    if (e_source_has_extension (source, extension_name)) {
        ESourceConflictSearch *extension;

        extension = e_source_get_extension (source, extension_name);
        search_for_conflicts =
            (pitip->type == E_CAL_CLIENT_SOURCE_TYPE_EVENTS) &&
            e_source_conflict_search_get_include_me (extension);
    }

    /* Check for conflicts */
    /* If the query fails, we'll just ignore it */
    /* FIXME What happens for recurring conflicts? */
    if (search_for_conflicts) {
        e_cal_client_get_object_list (
            cal_client, fd->sexp,
            fd->cancellable,
            get_object_list_ready_cb, fd);
        return;
    }

    if (!pitip->current_client) {
        e_cal_client_get_object (
            cal_client, fd->uid, fd->rid,
            fd->cancellable,
            get_object_with_rid_ready_cb, fd);
        return;
    }

    decrease_find_data (fd);
}

static void
itip_cancellable_cancelled (GCancellable *itip_cancellable,
                            GCancellable *fd_cancellable)
{
    g_cancellable_cancel (fd_cancellable);
}

static void
find_server (EMailPartItip *pitip,
             ItipView *view,
             ECalComponent *comp)
{
    FormatItipFindData *fd = NULL;
    const gchar *uid;
    gchar *rid = NULL;
    CamelStore *parent_store;
    ESource *current_source = NULL;
    GList *list, *link;
    GList *conflict_list = NULL;
    const gchar *extension_name;
    const gchar *store_uid;

    g_return_if_fail (pitip->folder != NULL);

    switch (pitip->type) {
        case E_CAL_CLIENT_SOURCE_TYPE_EVENTS:
            extension_name = E_SOURCE_EXTENSION_CALENDAR;
            break;
        case E_CAL_CLIENT_SOURCE_TYPE_TASKS:
            extension_name = E_SOURCE_EXTENSION_TASK_LIST;
            break;
        case E_CAL_CLIENT_SOURCE_TYPE_MEMOS:
            extension_name = E_SOURCE_EXTENSION_MEMO_LIST;
            break;
        default:
            g_return_if_reached ();
    }

    list = e_source_registry_list_enabled (
        view->priv->registry, extension_name);

    e_cal_component_get_uid (comp, &uid);
    rid = e_cal_component_get_recurid_as_string (comp);

    /* XXX Not sure what this was trying to do,
     *     but it propbably doesn't work anymore.
     *     Some comments would have been helpful. */
    parent_store = camel_folder_get_parent_store (pitip->folder);

    store_uid = camel_service_get_uid (CAMEL_SERVICE (parent_store));

    itip_view_set_buttons_sensitive (view, FALSE);

    for (link = list; link != NULL; link = g_list_next (link)) {
        ESource *source = E_SOURCE (link->data);
        gboolean search_for_conflicts = FALSE;
        const gchar *source_uid;

        extension_name = E_SOURCE_EXTENSION_CONFLICT_SEARCH;
        if (e_source_has_extension (source, extension_name)) {
            ESourceConflictSearch *extension;

            extension =
                e_source_get_extension (source, extension_name);
            search_for_conflicts =
                e_source_conflict_search_get_include_me (extension);
        }

        if (search_for_conflicts)
            conflict_list = g_list_prepend (
                conflict_list, g_object_ref (source));

        if (current_source != NULL)
            continue;

        source_uid = e_source_get_uid (source);
        if (g_strcmp0 (source_uid, store_uid) == 0) {
            current_source = source;
            conflict_list = g_list_prepend (
                conflict_list, g_object_ref (source));

            continue;
        }
    }

    if (current_source) {
        link = conflict_list;

        pitip->progress_info_id = itip_view_add_lower_info_item (
            view, ITIP_VIEW_INFO_ITEM_TYPE_PROGRESS,
            _("Opening the calendar. Please wait..."));
    } else {
        link = list;
        pitip->progress_info_id = itip_view_add_lower_info_item (
            view, ITIP_VIEW_INFO_ITEM_TYPE_PROGRESS,
            _("Searching for an existing version of this appointment"));
    }

    for (; link != NULL; link = g_list_next (link)) {
        ESource *source = E_SOURCE (link->data);

        if (!fd) {
            gchar *start = NULL, *end = NULL;

            fd = g_new0 (FormatItipFindData, 1);
            fd->puri = pitip;
            fd->view = g_object_ref (view);
            fd->itip_cancellable = g_object_ref (pitip->cancellable);
            fd->cancellable = g_cancellable_new ();
            fd->cancelled_id = g_cancellable_connect (
                fd->itip_cancellable,
                G_CALLBACK (itip_cancellable_cancelled), fd->cancellable, NULL);
            fd->conflicts = g_hash_table_new (g_direct_hash, g_direct_equal);
            fd->uid = g_strdup (uid);
            fd->rid = rid;
            /* avoid free this at the end */
            rid = NULL;

            if (pitip->start_time && pitip->end_time) {
                start = isodate_from_time_t (pitip->start_time);
                end = isodate_from_time_t (pitip->end_time);

                fd->sexp = g_strdup_printf (
                    "(and (occur-in-time-range? "
                    "(make-time \"%s\") "
                    "(make-time \"%s\")) "
                    "(not (uid? \"%s\")))",
                    start, end,
                    icalcomponent_get_uid (pitip->ical_comp));
            }

            g_free (start);
            g_free (end);
        }
        fd->count++;
        d (printf ("Increasing itip formatter search count to %d\n", fd->count));

        if (current_source == source)
            start_calendar_server (
                pitip, view, source, pitip->type,
                find_cal_opened_cb, fd);
        else
            start_calendar_server (
                pitip, view, source, pitip->type,
                find_cal_opened_cb, fd);
    }

    g_list_free_full (conflict_list, (GDestroyNotify) g_object_unref);
    g_list_free_full (list, (GDestroyNotify) g_object_unref);

    g_free (rid);
}

static gboolean
change_status (ESourceRegistry *registry,
               icalcomponent *ical_comp,
               const gchar *address,
               icalparameter_partstat status)
{
    icalproperty *prop;

    prop = find_attendee (ical_comp, address);
    if (prop) {
        icalparameter *param;

        icalproperty_remove_parameter (prop, ICAL_PARTSTAT_PARAMETER);
        param = icalparameter_new_partstat (status);
        icalproperty_add_parameter (prop, param);
    } else {
        icalparameter *param;

        if (address != NULL) {
            prop = icalproperty_new_attendee (address);
            icalcomponent_add_property (ical_comp, prop);

            param = icalparameter_new_role (ICAL_ROLE_OPTPARTICIPANT);
            icalproperty_add_parameter (prop, param);

            param = icalparameter_new_partstat (status);
            icalproperty_add_parameter (prop, param);
        } else {
            gchar *default_name = NULL;
            gchar *default_address = NULL;

            itip_get_default_name_and_address (
                registry, &default_name, &default_address);

            prop = icalproperty_new_attendee (default_address);
            icalcomponent_add_property (ical_comp, prop);

            param = icalparameter_new_cn (default_name);
            icalproperty_add_parameter (prop, param);

            param = icalparameter_new_role (ICAL_ROLE_REQPARTICIPANT);
            icalproperty_add_parameter (prop, param);

            param = icalparameter_new_partstat (status);
            icalproperty_add_parameter (prop, param);

            g_free (default_name);
            g_free (default_address);
        }
    }

    return TRUE;
}

static void
message_foreach_part (CamelMimePart *part,
                      GSList **part_list)
{
    CamelDataWrapper *containee;
    gint parts, i;
    gint go = TRUE;

    if (!part)
        return;

    *part_list = g_slist_append (*part_list, part);

    containee = camel_medium_get_content (CAMEL_MEDIUM (part));

    if (containee == NULL)
        return;

    /* using the object types is more accurate than using the mime/types */
    if (CAMEL_IS_MULTIPART (containee)) {
        parts = camel_multipart_get_number (CAMEL_MULTIPART (containee));
        for (i = 0; go && i < parts; i++) {
            /* Reuse already declared *parts? */
            CamelMimePart *part = camel_multipart_get_part (CAMEL_MULTIPART (containee), i);

            message_foreach_part (part, part_list);
        }
    } else if (CAMEL_IS_MIME_MESSAGE (containee)) {
        message_foreach_part ((CamelMimePart *) containee, part_list);
    }
}

static void
attachment_load_finished (EAttachment *attachment,
                          GAsyncResult *result,
                          gpointer user_data)
{
    struct {
        GFile *file;
        gboolean done;
    } *status = user_data;

    /* Should be no need to check for error here. */
    e_attachment_load_finish (attachment, result, NULL);

    status->done = TRUE;
}

static void
attachment_save_finished (EAttachment *attachment,
                          GAsyncResult *result,
                          gpointer user_data)
{
    GError *error = NULL;

    struct {
        GFile *file;
        gboolean done;
    } *status = user_data;

    status->file = e_attachment_save_finish (attachment, result, &error);
    status->done = TRUE;

    /* XXX Error handling needs improvement. */
    if (error != NULL) {
        g_warning ("%s", error->message);
        g_error_free (error);
    }
}

static gchar *
get_uri_for_part (CamelMimePart *mime_part)
{
    EAttachment *attachment;
    GFile *temp_directory;
    gchar *template;
    gchar *path;

    struct {
        GFile *file;
        gboolean done;
    } status;

    /* XXX Error handling leaves much to be desired. */

    template = g_strdup_printf (PACKAGE "-%s-XXXXXX", g_get_user_name ());
    path = e_mkdtemp (template);
    g_free (template);

    if (path == NULL)
        return NULL;

    temp_directory = g_file_new_for_path (path);
    g_free (path);

    attachment = e_attachment_new ();
    e_attachment_set_mime_part (attachment, mime_part);

    status.done = FALSE;

    e_attachment_load_async (
        attachment, (GAsyncReadyCallback)
        attachment_load_finished, &status);

    /* Loading should be instantaneous since we already have
     * the full content, but we still have to crank the main
     * loop until the callback gets triggered. */
    /* coverity[loop_condition] */
    while (!status.done)
        gtk_main_iteration ();

    status.file = NULL;
    status.done = FALSE;

    e_attachment_save_async (
        attachment, temp_directory, (GAsyncReadyCallback)
        attachment_save_finished, &status);

    /* We can't return until we have results, so crank
     * the main loop until the callback gets triggered. */
    /* coverity[loop_condition] */
    while (!status.done)
        gtk_main_iteration ();

    if (status.file != NULL) {
        path = g_file_get_path (status.file);
        g_object_unref (status.file);
    } else
        path = NULL;

    g_object_unref (attachment);
    g_object_unref (temp_directory);

    return path;
}

static void
update_item_progress_info (EMailPartItip *pitip,
                           ItipView *view,
                           const gchar *message)
{
    if (pitip->update_item_progress_info_id) {
        itip_view_remove_lower_info_item (view, pitip->update_item_progress_info_id);
        pitip->update_item_progress_info_id = 0;

        if (!message)
            itip_view_set_buttons_sensitive (view, TRUE);
    }

    if (pitip->update_item_error_info_id) {
        itip_view_remove_lower_info_item (view, pitip->update_item_error_info_id);
        pitip->update_item_error_info_id = 0;
    }

    if (message) {
        itip_view_set_buttons_sensitive (view, FALSE);
        pitip->update_item_progress_info_id =
            itip_view_add_lower_info_item (
                view,
                ITIP_VIEW_INFO_ITEM_TYPE_PROGRESS,
                message);
    }
}

static void
finish_message_delete_with_rsvp (EMailPartItip *pitip,
                                 ItipView *view,
                                 ECalClient *client)
{
    if (pitip->delete_message && pitip->folder)
        camel_folder_delete_message (pitip->folder, pitip->uid);

    if (itip_view_get_rsvp (view)) {
        ECalComponent *comp = NULL;
        icalcomponent *ical_comp;
        icalproperty *prop;
        icalvalue *value;
        const gchar *attendee;
        gchar *comment;
        GSList *l, *list = NULL;
        gboolean found;

        comp = e_cal_component_clone (pitip->comp);
        if (comp == NULL)
            return;

        if (pitip->to_address == NULL)
            find_to_address (view, pitip, pitip->ical_comp, NULL);
        g_assert (pitip->to_address != NULL);

        ical_comp = e_cal_component_get_icalcomponent (comp);

        /* Remove all attendees except the one we are responding as */
        found = FALSE;
        for (prop = icalcomponent_get_first_property (ical_comp, ICAL_ATTENDEE_PROPERTY);
             prop != NULL;
             prop = icalcomponent_get_next_property (ical_comp, ICAL_ATTENDEE_PROPERTY)) {
            gchar *text;

            value = icalproperty_get_value (prop);
            if (!value)
                continue;

            attendee = icalvalue_get_string (value);

            text = g_strdup (itip_strip_mailto (attendee));
            text = g_strstrip (text);

            /* We do this to ensure there is at most one
             * attendee in the response */
            if (found || g_ascii_strcasecmp (pitip->to_address, text))
                list = g_slist_prepend (list, prop);
            else if (!g_ascii_strcasecmp (pitip->to_address, text))
                found = TRUE;
            g_free (text);
        }

        for (l = list; l; l = l->next) {
            prop = l->data;
            icalcomponent_remove_property (ical_comp, prop);
            icalproperty_free (prop);
        }
        g_slist_free (list);

        /* Add a comment if there user set one */
        comment = itip_view_get_rsvp_comment (view);
        if (comment) {
            GSList comments;
            ECalComponentText text;

            text.value = comment;
            text.altrep = NULL;

            comments.data = &text;
            comments.next = NULL;

            e_cal_component_set_comment_list (comp, &comments);

            g_free (comment);
        }

        e_cal_component_rescan (comp);

        if (itip_send_comp (
                view->priv->registry,
                E_CAL_COMPONENT_METHOD_REPLY,
                comp, pitip->current_client,
                pitip->top_level, NULL, NULL, TRUE, FALSE) &&
                pitip->folder) {
            camel_folder_set_message_flags (
                pitip->folder, pitip->uid,
                CAMEL_MESSAGE_ANSWERED,
                CAMEL_MESSAGE_ANSWERED);
        }

        g_object_unref (comp);
    }

    update_item_progress_info (pitip, view, NULL);
}

static void
receive_objects_ready_cb (GObject *ecalclient,
                          GAsyncResult *result,
                          gpointer user_data)
{
    ECalClient *client = E_CAL_CLIENT (ecalclient);
    ESource *source = e_client_get_source (E_CLIENT (client));
    ItipView *view = user_data;
    EMailPartItip *pitip = itip_view_get_mail_part (view);
    GError *error = NULL;

    e_cal_client_receive_objects_finish (client, result, &error);

    if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
        g_error_free (error);
        return;

    } else if (error != NULL) {
        update_item_progress_info (pitip, view, NULL);
        pitip->update_item_error_info_id =
            itip_view_add_lower_info_item_printf (
                view, ITIP_VIEW_INFO_ITEM_TYPE_INFO,
                _("Unable to send item to calendar '%s'.  %s"),
                e_source_get_display_name (source),
                error->message);
        g_error_free (error);
        return;
    }

    itip_view_set_extension_name (view, NULL);

    itip_view_clear_lower_info_items (view);

    switch (pitip->update_item_response) {
    case ITIP_VIEW_RESPONSE_ACCEPT:
        itip_view_add_lower_info_item_printf (
            view, ITIP_VIEW_INFO_ITEM_TYPE_INFO,
            _("Sent to calendar '%s' as accepted"), e_source_get_display_name (source));
        break;
    case ITIP_VIEW_RESPONSE_TENTATIVE:
        itip_view_add_lower_info_item_printf (
            view, ITIP_VIEW_INFO_ITEM_TYPE_INFO,
            _("Sent to calendar '%s' as tentative"), e_source_get_display_name (source));
        break;
    case ITIP_VIEW_RESPONSE_DECLINE:
        /* FIXME some calendars just might not save it at all, is this accurate? */
        itip_view_add_lower_info_item_printf (
            view, ITIP_VIEW_INFO_ITEM_TYPE_INFO,
            _("Sent to calendar '%s' as declined"), e_source_get_display_name (source));
        break;
    case ITIP_VIEW_RESPONSE_CANCEL:
        /* FIXME some calendars just might not save it at all, is this accurate? */
        itip_view_add_lower_info_item_printf (
            view, ITIP_VIEW_INFO_ITEM_TYPE_INFO,
            _("Sent to calendar '%s' as canceled"), e_source_get_display_name (source));
        break;
    default:
        g_assert_not_reached ();
        break;
    }

    finish_message_delete_with_rsvp (pitip, view, client);
}

static void
update_item (EMailPartItip *pitip,
             ItipView *view,
             ItipViewResponse response)
{
    struct icaltimetype stamp;
    icalproperty *prop;
    icalcomponent *clone;
    ECalComponent *clone_comp;
    gchar *str;

    update_item_progress_info (pitip, view, _("Saving changes to the calendar. Please wait..."));

    /* Set X-MICROSOFT-CDO-REPLYTIME to record the time at which
     * the user accepted/declined the request. (Outlook ignores
     * SEQUENCE in REPLY reponses and instead requires that each
     * updated response have a later REPLYTIME than the previous
     * one.) This also ends up getting saved in our own copy of
     * the meeting, though there's currently no way to see that
     * information (unless it's being saved to an Exchange folder
     * and you then look at it in Outlook).
     */
    stamp = icaltime_current_time_with_zone (icaltimezone_get_utc_timezone ());
    str = icaltime_as_ical_string_r (stamp);
    prop = icalproperty_new_x (str);
    g_free (str);
    icalproperty_set_x_name (prop, "X-MICROSOFT-CDO-REPLYTIME");
    icalcomponent_add_property (pitip->ical_comp, prop);

    clone = icalcomponent_new_clone (pitip->ical_comp);
    icalcomponent_add_component (pitip->top_level, clone);
    icalcomponent_set_method (pitip->top_level, pitip->method);

    if (!itip_view_get_inherit_alarm_check_state (view)) {
        icalcomponent *alarm_comp;
        icalcompiter alarm_iter;

        alarm_iter = icalcomponent_begin_component (clone, ICAL_VALARM_COMPONENT);
        while ((alarm_comp = icalcompiter_deref (&alarm_iter)) != NULL) {
            icalcompiter_next (&alarm_iter);

            icalcomponent_remove_component (clone, alarm_comp);
            icalcomponent_free (alarm_comp);
        }
    }

    clone_comp = e_cal_component_new ();
    if (!e_cal_component_set_icalcomponent (clone_comp, clone)) {
        update_item_progress_info (pitip, view, NULL);
        pitip->update_item_error_info_id =
            itip_view_add_lower_info_item (
                view, ITIP_VIEW_INFO_ITEM_TYPE_ERROR,
                _("Unable to parse item"));
        goto cleanup;
    }

    if (itip_view_get_keep_alarm_check_state (view)) {
        ECalComponent *real_comp;
        GList *alarms, *l;
        ECalComponentAlarm *alarm;

        real_comp = get_real_item (pitip);
        if (real_comp != NULL) {
            alarms = e_cal_component_get_alarm_uids (real_comp);

            for (l = alarms; l; l = l->next) {
                alarm = e_cal_component_get_alarm (
                    real_comp, (const gchar *) l->data);

                if (alarm) {
                    ECalComponentAlarm *aclone = e_cal_component_alarm_clone (alarm);

                    if (aclone) {
                        e_cal_component_add_alarm (clone_comp, aclone);
                        e_cal_component_alarm_free (aclone);
                    }

                    e_cal_component_alarm_free (alarm);
                }
            }

            cal_obj_uid_list_free (alarms);
            g_object_unref (real_comp);
        }
    }

    if ((response != ITIP_VIEW_RESPONSE_CANCEL)
        && (response != ITIP_VIEW_RESPONSE_DECLINE)) {
        GSList *attachments = NULL, *new_attachments = NULL, *l;
        CamelMimeMessage *msg = pitip->msg;

        e_cal_component_get_attachment_list (clone_comp, &attachments);

        for (l = attachments; l; l = l->next) {
            GSList *parts = NULL, *m;
            gchar *uri, *new_uri;
            CamelMimePart *part;

            uri = l->data;

            if (!g_ascii_strncasecmp (uri, "cid:...", 7)) {
                message_foreach_part ((CamelMimePart *) msg, &parts);

                for (m = parts; m; m = m->next) {
                    part = m->data;

                    /* Skip the actual message and the text/calendar part */
                    /* FIXME Do we need to skip anything else? */
                    if (part == (CamelMimePart *) msg || part == pitip->part)
                        continue;

                    new_uri = get_uri_for_part (part);
                    if (new_uri != NULL)
                        new_attachments = g_slist_append (new_attachments, new_uri);
                }

                g_slist_free (parts);

            } else if (!g_ascii_strncasecmp (uri, "cid:", 4)) {
                part = camel_mime_message_get_part_by_content_id (msg, uri + 4);
                if (part) {
                    new_uri = get_uri_for_part (part);
                    if (new_uri != NULL)
                        new_attachments = g_slist_append (new_attachments, new_uri);
                }

            } else {
                /* Preserve existing non-cid ones */
                new_attachments = g_slist_append (new_attachments, g_strdup (uri));
            }
        }

        g_slist_foreach (attachments, (GFunc) g_free, NULL);
        g_slist_free (attachments);

        e_cal_component_set_attachment_list (clone_comp, new_attachments);
    }

    pitip->update_item_response = response;

    e_cal_client_receive_objects (
        pitip->current_client,
        pitip->top_level,
        pitip->cancellable,
        receive_objects_ready_cb,
        view);

 cleanup:
    icalcomponent_remove_component (pitip->top_level, clone);
    g_object_unref (clone_comp);
}

/* TODO These operations should be available in e-cal-component.c */
static void
set_attendee (ECalComponent *comp,
              const gchar *address)
{
    icalproperty *prop;
    icalcomponent *icalcomp;
    gboolean found = FALSE;

    icalcomp = e_cal_component_get_icalcomponent (comp);

    for (prop = icalcomponent_get_first_property (icalcomp, ICAL_ATTENDEE_PROPERTY);
            prop;
            prop = icalcomponent_get_next_property (icalcomp, ICAL_ATTENDEE_PROPERTY)) {
        const gchar *attendee = icalproperty_get_attendee (prop);

        if (!(g_str_equal (itip_strip_mailto (attendee), address)))
            icalcomponent_remove_property (icalcomp, prop);
        else
            found = TRUE;
    }

    if (!found) {
        icalparameter *param;
        gchar *temp = g_strdup_printf ("MAILTO:%s", address);

        prop = icalproperty_new_attendee ((const gchar *) temp);
        icalcomponent_add_property (icalcomp, prop);

        param = icalparameter_new_partstat (ICAL_PARTSTAT_NEEDSACTION);
        icalproperty_add_parameter (prop, param);

        param = icalparameter_new_role (ICAL_ROLE_REQPARTICIPANT);
        icalproperty_add_parameter (prop, param);

        param = icalparameter_new_cutype (ICAL_CUTYPE_INDIVIDUAL);
        icalproperty_add_parameter (prop, param);

        param = icalparameter_new_rsvp (ICAL_RSVP_TRUE);
        icalproperty_add_parameter (prop, param);

        g_free (temp);
    }

}

static gboolean
send_comp_to_attendee (ESourceRegistry *registry,
                       ECalComponentItipMethod method,
                       ECalComponent *comp,
                       const gchar *user,
                       ECalClient *client,
                       const gchar *comment)
{
    gboolean status;
    ECalComponent *send_comp = e_cal_component_clone (comp);

    set_attendee (send_comp, user);

    if (comment) {
        GSList comments;
        ECalComponentText text;

        text.value = comment;
        text.altrep = NULL;

        comments.data = &text;
        comments.next = NULL;

        e_cal_component_set_comment_list (send_comp, &comments);
    }

    /* FIXME send the attachments in the request */
    status = itip_send_comp (
        registry, method, send_comp,
        client, NULL, NULL, NULL, TRUE, FALSE);

    g_object_unref (send_comp);

    return status;
}

static void
remove_delegate (EMailPartItip *pitip,
                 ItipView *view,
                 const gchar *delegate,
                 const gchar *delegator,
                 ECalComponent *comp)
{
    gboolean status;
    gchar *comment;

    comment = g_strdup_printf (
        _("Organizer has removed the delegate %s "),
        itip_strip_mailto (delegate));

    /* send cancellation notice to delegate */
    status = send_comp_to_attendee (
        view->priv->registry,
        E_CAL_COMPONENT_METHOD_CANCEL, pitip->comp,
        delegate, pitip->current_client, comment);
    if (status != 0) {
        send_comp_to_attendee (
            view->priv->registry,
            E_CAL_COMPONENT_METHOD_REQUEST, pitip->comp,
            delegator, pitip->current_client, comment);
    }
    if (status != 0) {
        itip_view_add_lower_info_item (
            view, ITIP_VIEW_INFO_ITEM_TYPE_INFO,
            _("Sent a cancelation notice to the delegate"));
    } else {
        itip_view_add_lower_info_item (
            view, ITIP_VIEW_INFO_ITEM_TYPE_INFO,
            _("Could not send the cancelation notice to the delegate"));
    }

    g_free (comment);

}

static void
update_x (ECalComponent *pitip_comp,
          ECalComponent *comp)
{
    icalcomponent *itip_icalcomp = e_cal_component_get_icalcomponent (pitip_comp);
    icalcomponent *icalcomp = e_cal_component_get_icalcomponent (comp);

    icalproperty *prop = icalcomponent_get_first_property (itip_icalcomp, ICAL_X_PROPERTY);
    while (prop) {
        const gchar *name = icalproperty_get_x_name (prop);
        if (!g_ascii_strcasecmp (name, "X-EVOLUTION-IS-REPLY")) {
            icalproperty *new_prop = icalproperty_new_x (icalproperty_get_x (prop));
            icalproperty_set_x_name (new_prop, "X-EVOLUTION-IS-REPLY");
            icalcomponent_add_property (icalcomp, new_prop);
        }
        prop = icalcomponent_get_next_property (itip_icalcomp, ICAL_X_PROPERTY);
    }

    e_cal_component_set_icalcomponent (comp, icalcomp);
}

static void
modify_object_cb (GObject *ecalclient,
                  GAsyncResult *result,
                  gpointer user_data)
{
    ECalClient *client = E_CAL_CLIENT (ecalclient);
    ItipView *view = user_data;
    EMailPartItip *pitip = itip_view_get_mail_part (view);
    GError *error = NULL;

    e_cal_client_modify_object_finish (client, result, &error);

    if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
        g_error_free (error);

    } else if (error != NULL) {
        update_item_progress_info (pitip, view, NULL);
        pitip->update_item_error_info_id =
            itip_view_add_lower_info_item_printf (
                view, ITIP_VIEW_INFO_ITEM_TYPE_ERROR,
                _("Unable to update attendee. %s"),
                error->message);
        g_error_free (error);

    } else {
        update_item_progress_info (pitip, view, NULL);
        itip_view_add_lower_info_item (
            view, ITIP_VIEW_INFO_ITEM_TYPE_INFO,
            _("Attendee status updated"));

        if (view->priv->dom_document) {
            WebKitDOMElement *el;

            el = webkit_dom_document_get_element_by_id (
                view->priv->dom_document, BUTTON_UPDATE_ATTENDEE_STATUS);
            webkit_dom_html_button_element_set_disabled (
                WEBKIT_DOM_HTML_BUTTON_ELEMENT (el), TRUE);
        }

        if (pitip->delete_message && pitip->folder)
            camel_folder_delete_message (pitip->folder, pitip->uid);
    }
}

static void
update_attendee_status_icalcomp (EMailPartItip *pitip,
                                 ItipView *view,
                                 icalcomponent *icalcomp)
{
    ECalComponent *comp;
    const gchar *uid = NULL;
    gchar *rid;
    GSList *attendees;

    e_cal_component_get_uid (pitip->comp, &uid);
    rid = e_cal_component_get_recurid_as_string (pitip->comp);

    comp = e_cal_component_new ();
    if (!e_cal_component_set_icalcomponent (comp, icalcomp)) {
        icalcomponent_free (icalcomp);

        itip_view_add_lower_info_item (
            view, ITIP_VIEW_INFO_ITEM_TYPE_ERROR,
            _("The meeting is invalid and cannot be updated"));
    } else {
        icalcomponent *org_icalcomp;
        const gchar *delegate;

        org_icalcomp = e_cal_component_get_icalcomponent (pitip->comp);

        e_cal_component_get_attendee_list (pitip->comp, &attendees);
        if (attendees != NULL) {
            ECalComponentAttendee *a = attendees->data;
            icalproperty *prop, *del_prop;
            EShell *shell = e_shell_get_default ();

            prop = find_attendee (icalcomp, itip_strip_mailto (a->value));
            if ((a->status == ICAL_PARTSTAT_DELEGATED) && (del_prop = find_attendee (org_icalcomp, itip_strip_mailto (a->delto))) && !(find_attendee (icalcomp, itip_strip_mailto (a->delto)))) {
                gint response;
                delegate = icalproperty_get_attendee (del_prop);
                response = e_alert_run_dialog_for_args (
                    e_shell_get_active_window (shell),
                    "org.gnome.itip-formatter:add-delegate",
                    itip_strip_mailto (a->value),
                    itip_strip_mailto (delegate), NULL);
                if (response == GTK_RESPONSE_YES) {
                    icalcomponent_add_property (icalcomp, icalproperty_new_clone (del_prop));
                    e_cal_component_rescan (comp);
                } else if (response == GTK_RESPONSE_NO) {
                    remove_delegate (pitip, view, delegate, itip_strip_mailto (a->value), comp);
                    goto cleanup;
                } else {
                    goto cleanup;
                }
            }

            if (prop == NULL) {
                gint response;

                if (a->delfrom && *a->delfrom) {
                    response = e_alert_run_dialog_for_args (
                        e_shell_get_active_window (shell),
                        "org.gnome.itip-formatter:add-delegate",
                        itip_strip_mailto (a->delfrom),
                        itip_strip_mailto (a->value), NULL);
                    if (response == GTK_RESPONSE_YES) {
                        /* Already declared in this function */
                        icalproperty *prop = find_attendee (icalcomp, itip_strip_mailto (a->value));
                        icalcomponent_add_property (icalcomp,icalproperty_new_clone (prop));
                        e_cal_component_rescan (comp);
                    } else if (response == GTK_RESPONSE_NO) {
                        remove_delegate (
                            pitip,
                            view,
                            itip_strip_mailto (a->value),
                            itip_strip_mailto (a->delfrom),
                            comp);
                        goto cleanup;
                    } else {
                        goto cleanup;
                    }
                }

                response = e_alert_run_dialog_for_args (
                    e_shell_get_active_window (shell),
                    "org.gnome.itip-formatter:add-unknown-attendee", NULL);

                if (response == GTK_RESPONSE_YES) {
                    change_status (
                        view->priv->registry, icalcomp,
                        itip_strip_mailto (a->value),
                        a->status);
                    e_cal_component_rescan (comp);
                } else {
                    goto cleanup;
                }
            } else if (a->status == ICAL_PARTSTAT_NONE || a->status == ICAL_PARTSTAT_X) {
                itip_view_add_lower_info_item (
                    view, ITIP_VIEW_INFO_ITEM_TYPE_ERROR,
                    _("Attendee status could not be updated because the status is invalid"));
                goto cleanup;
            } else {
                if (a->status == ICAL_PARTSTAT_DELEGATED) {
                    /* *prop already declared in this function */
                    icalproperty *prop, *new_prop;

                    prop = find_attendee (icalcomp, itip_strip_mailto (a->value));
                    icalcomponent_remove_property (icalcomp, prop);

                    new_prop = find_attendee (org_icalcomp, itip_strip_mailto (a->value));
                    icalcomponent_add_property (icalcomp, icalproperty_new_clone (new_prop));
                } else {
                    change_status (
                        view->priv->registry,icalcomp,
                        itip_strip_mailto (a->value),
                        a->status);
                }

                e_cal_component_rescan (comp);
            }
        }
    }

    update_x (pitip->comp, comp);

    if (itip_view_get_update (view)) {
        e_cal_component_commit_sequence (comp);
        itip_send_comp (
            view->priv->registry,
            E_CAL_COMPONENT_METHOD_REQUEST,
            comp, pitip->current_client,
            NULL, NULL, NULL, TRUE, FALSE);
    }

    update_item_progress_info (pitip, view, _("Saving changes to the calendar. Please wait..."));

    e_cal_client_modify_object (
        pitip->current_client,
        icalcomp, rid ? CALOBJ_MOD_THIS : CALOBJ_MOD_ALL,
        pitip->cancellable,
        modify_object_cb,
        view);

 cleanup:
    g_object_unref (comp);
}

static void
update_attendee_status_get_object_without_rid_cb (GObject *ecalclient,
                                                  GAsyncResult *result,
                                                  gpointer user_data)
{
    ECalClient *client = E_CAL_CLIENT (ecalclient);
    ItipView *view = user_data;
    EMailPartItip *pitip = itip_view_get_mail_part (view);
    icalcomponent *icalcomp = NULL;
    GError *error = NULL;

    e_cal_client_get_object_finish (client, result, &icalcomp, &error);

    if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
        g_error_free (error);

    } else if (error != NULL) {
        g_error_free (error);

        update_item_progress_info (pitip, view, NULL);
        pitip->update_item_error_info_id =
            itip_view_add_lower_info_item (
                view,
                ITIP_VIEW_INFO_ITEM_TYPE_WARNING,
                _("Attendee status can not be updated "
                "because the item no longer exists"));

    } else {
        update_attendee_status_icalcomp (pitip, view, icalcomp);
    }
}

static void
update_attendee_status_get_object_with_rid_cb (GObject *ecalclient,
                                               GAsyncResult *result,
                                               gpointer user_data)
{
    ECalClient *client = E_CAL_CLIENT (ecalclient);
    ItipView *view = user_data;
    EMailPartItip *pitip = itip_view_get_mail_part (view);
    icalcomponent *icalcomp = NULL;
    GError *error = NULL;

    e_cal_client_get_object_finish (client, result, &icalcomp, &error);

    if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
        g_error_free (error);

    } else if (error != NULL) {
        const gchar *uid;
        gchar *rid;

        g_error_free (error);

        e_cal_component_get_uid (pitip->comp, &uid);
        rid = e_cal_component_get_recurid_as_string (pitip->comp);

        if (rid == NULL || *rid == '\0') {
            update_item_progress_info (pitip, view, NULL);
            pitip->update_item_error_info_id =
                itip_view_add_lower_info_item (
                    view,
                    ITIP_VIEW_INFO_ITEM_TYPE_WARNING,
                    _("Attendee status can not be updated "
                    "because the item no longer exists"));
        } else {
            e_cal_client_get_object (
                pitip->current_client,
                uid,
                NULL,
                pitip->cancellable,
                update_attendee_status_get_object_without_rid_cb,
                view);
        }

        g_free (rid);

    } else {
        update_attendee_status_icalcomp (pitip, view, icalcomp);
    }
}

static void
update_attendee_status (EMailPartItip *pitip,
                        ItipView *view)
{
    const gchar *uid = NULL;
    gchar *rid;

    /* Obtain our version */
    e_cal_component_get_uid (pitip->comp, &uid);
    rid = e_cal_component_get_recurid_as_string (pitip->comp);

    update_item_progress_info (pitip, view, _("Saving changes to the calendar. Please wait..."));

    /* search for a master object if the detached object doesn't exist in the calendar */
    e_cal_client_get_object (
        pitip->current_client,
        uid, rid,
        pitip->cancellable,
        update_attendee_status_get_object_with_rid_cb,
        view);

    g_free (rid);
}

static void
send_item (EMailPartItip *pitip,
           ItipView *view)
{
    ECalComponent *comp;

    comp = get_real_item (pitip);

    if (comp != NULL) {
        itip_send_comp (
            view->priv->registry,
            E_CAL_COMPONENT_METHOD_REQUEST,
            comp, pitip->current_client,
            NULL, NULL, NULL, TRUE, FALSE);
        g_object_unref (comp);

        switch (pitip->type) {
        case E_CAL_CLIENT_SOURCE_TYPE_EVENTS:
            itip_view_add_lower_info_item (
                view, ITIP_VIEW_INFO_ITEM_TYPE_INFO,
                _("Meeting information sent"));
            break;
        case E_CAL_CLIENT_SOURCE_TYPE_TASKS:
            itip_view_add_lower_info_item (
                view, ITIP_VIEW_INFO_ITEM_TYPE_INFO,
                _("Task information sent"));
            break;
        case E_CAL_CLIENT_SOURCE_TYPE_MEMOS:
            itip_view_add_lower_info_item (
                view, ITIP_VIEW_INFO_ITEM_TYPE_INFO,
                _("Memo information sent"));
            break;
        default:
            g_assert_not_reached ();
            break;
        }
    } else {
        switch (pitip->type) {
        case E_CAL_CLIENT_SOURCE_TYPE_EVENTS:
            itip_view_add_lower_info_item (
                view, ITIP_VIEW_INFO_ITEM_TYPE_ERROR,
                _("Unable to send meeting information, the meeting does not exist"));
            break;
        case E_CAL_CLIENT_SOURCE_TYPE_TASKS:
            itip_view_add_lower_info_item (
                view, ITIP_VIEW_INFO_ITEM_TYPE_ERROR,
                _("Unable to send task information, the task does not exist"));
            break;
        case E_CAL_CLIENT_SOURCE_TYPE_MEMOS:
            itip_view_add_lower_info_item (
                view, ITIP_VIEW_INFO_ITEM_TYPE_ERROR,
                _("Unable to send memo information, the memo does not exist"));
            break;
        default:
            g_assert_not_reached ();
            break;
        }
    }
}

static icalcomponent *
get_next (icalcompiter *iter)
{
    icalcomponent *ret = NULL;
    icalcomponent_kind kind;

    do {
        icalcompiter_next (iter);
        ret = icalcompiter_deref (iter);
        if (ret == NULL)
            break;
        kind = icalcomponent_isa (ret);
    } while (ret != NULL
         && kind != ICAL_VEVENT_COMPONENT
         && kind != ICAL_VTODO_COMPONENT
         && kind != ICAL_VFREEBUSY_COMPONENT);

    return ret;
}

static void
attachment_load_finish (EAttachment *attachment,
                        GAsyncResult *result,
                        GFile *file)
{
    EShell *shell;
    GtkWindow *parent;

    /* XXX Theoretically, this should never fail. */
    e_attachment_load_finish (attachment, result, NULL);

    shell = e_shell_get_default ();
    parent = e_shell_get_active_window (shell);

    e_attachment_save_async (
        attachment, file, (GAsyncReadyCallback)
        e_attachment_save_handle_error, parent);

    g_object_unref (file);
}

static void
save_vcalendar_cb (EMailPartItip *pitip)
{
    EAttachment *attachment;
    EShell *shell;
    GFile *file;
    const gchar *suggestion;

    g_return_if_fail (pitip != NULL);
    g_return_if_fail (pitip->vcalendar != NULL);
    g_return_if_fail (pitip->part != NULL);

    suggestion = camel_mime_part_get_filename (pitip->part);
    if (suggestion == NULL) {
        /* Translators: This is a default filename for a calendar. */
        suggestion = _("calendar.ics");
    }

    shell = e_shell_get_default ();
    file = e_shell_run_save_dialog (
        shell, _("Save Calendar"), suggestion, "*.ics:text/calendar", NULL, NULL);
    if (file == NULL)
        return;

    attachment = e_attachment_new ();
    e_attachment_set_mime_part (attachment, pitip->part);

    e_attachment_load_async (
        attachment, (GAsyncReadyCallback)
        attachment_load_finish, file);
}

static void
set_itip_error (ItipView *view,
                const gchar *primary,
                const gchar *secondary,
                gboolean save_btn)
{
    gchar *error;

    error = g_strdup_printf (
        "<div class=\"error\">"
        "<p><b>%s</b></p>"
        "<p>%s</p>",
        primary, secondary);

    itip_view_set_error (view, error, save_btn);

    g_free (error);
}

static gboolean
extract_itip_data (EMailPartItip *pitip,
                   ItipView *view,
                   gboolean *have_alarms)
{
    GSettings *settings;
    icalproperty *prop;
    icalcomponent_kind kind = ICAL_NO_COMPONENT;
    icalcomponent *tz_comp;
    icalcompiter tz_iter;
    icalcomponent *alarm_comp;
    icalcompiter alarm_iter;
    ECalComponent *comp;
    gboolean use_default_reminder;

    if (!pitip->vcalendar) {
        set_itip_error (
            view,
            _("The calendar attached is not valid"),
            _("The message claims to contain a calendar, but the calendar is not a valid iCalendar."),
            FALSE);

        return FALSE;
    }

    pitip->top_level = e_cal_util_new_top_level ();

    pitip->main_comp = icalparser_parse_string (pitip->vcalendar);
    if (pitip->main_comp == NULL || !is_icalcomp_valid (pitip->main_comp)) {
        set_itip_error (
            view,
            _("The calendar attached is not valid"),
            _("The message claims to contain a calendar, but the calendar is not a valid iCalendar."),
            FALSE);

        if (pitip->main_comp) {
            icalcomponent_free (pitip->main_comp);
            pitip->main_comp = NULL;
        }

        return FALSE;
    }

    prop = icalcomponent_get_first_property (pitip->main_comp, ICAL_METHOD_PROPERTY);
    if (prop == NULL) {
        pitip->method = ICAL_METHOD_PUBLISH;
    } else {
        pitip->method = icalproperty_get_method (prop);
    }

    tz_iter = icalcomponent_begin_component (pitip->main_comp, ICAL_VTIMEZONE_COMPONENT);
    while ((tz_comp = icalcompiter_deref (&tz_iter)) != NULL) {
        icalcomponent *clone;

        clone = icalcomponent_new_clone (tz_comp);
        icalcomponent_add_component (pitip->top_level, clone);

        icalcompiter_next (&tz_iter);
    }

    pitip->iter = icalcomponent_begin_component (pitip->main_comp, ICAL_ANY_COMPONENT);
    pitip->ical_comp = icalcompiter_deref (&pitip->iter);
    if (pitip->ical_comp != NULL) {
        kind = icalcomponent_isa (pitip->ical_comp);
        if (kind != ICAL_VEVENT_COMPONENT
            && kind != ICAL_VTODO_COMPONENT
            && kind != ICAL_VFREEBUSY_COMPONENT
            && kind != ICAL_VJOURNAL_COMPONENT)
            pitip->ical_comp = get_next (&pitip->iter);
    }

    if (pitip->ical_comp == NULL) {
        set_itip_error (
            view,
            _("The item in the calendar is not valid"),
            _("The message does contain a calendar, but the calendar contains no events, tasks or free/busy information"),
            FALSE);

        return FALSE;
    }

    switch (icalcomponent_isa (pitip->ical_comp)) {
    case ICAL_VEVENT_COMPONENT:
        pitip->type = E_CAL_CLIENT_SOURCE_TYPE_EVENTS;
        pitip->has_organizer = icalcomponent_get_first_property (pitip->ical_comp, ICAL_ORGANIZER_PROPERTY) != NULL;
        if (icalcomponent_get_first_property (pitip->ical_comp, ICAL_ATTENDEE_PROPERTY) == NULL) {
            /* no attendees: assume that that this is not a meeting and organizer doesn't want a reply */
            pitip->no_reply_wanted = TRUE;
        } else {
            /*
             * if we have attendees, then find_to_address() will check for our RSVP
             * and set no_reply_wanted=TRUE if RSVP=FALSE for the current user
             */
        }
        break;
    case ICAL_VTODO_COMPONENT:
        pitip->type = E_CAL_CLIENT_SOURCE_TYPE_TASKS;
        break;
    case ICAL_VJOURNAL_COMPONENT:
        pitip->type = E_CAL_CLIENT_SOURCE_TYPE_MEMOS;
        break;
    default:
        set_itip_error (
            view,
            _("The item in the calendar is not valid"),
            _("The message does contain a calendar, but the calendar contains no events, tasks or free/busy information"),
            FALSE);

        return FALSE;
    }

    pitip->total = icalcomponent_count_components (pitip->main_comp, ICAL_VEVENT_COMPONENT);
    pitip->total += icalcomponent_count_components (pitip->main_comp, ICAL_VTODO_COMPONENT);
    pitip->total += icalcomponent_count_components (pitip->main_comp, ICAL_VFREEBUSY_COMPONENT);
    pitip->total += icalcomponent_count_components (pitip->main_comp, ICAL_VJOURNAL_COMPONENT);

    if (pitip->total > 1) {

        set_itip_error (
            view,
            _("The calendar attached contains multiple items"),
            _("To process all of these items, the file should be saved and the calendar imported"),
            TRUE);

    } if (pitip->total > 0) {
        pitip->current = 1;
    } else {
        pitip->current = 0;
    }

    if (icalcomponent_isa (pitip->ical_comp) != ICAL_VJOURNAL_COMPONENT) {
        gchar *my_address;

        prop = NULL;
        comp = e_cal_component_new ();
        e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (pitip->ical_comp));
        my_address = itip_get_comp_attendee (
            view->priv->registry, comp, NULL);
        g_object_unref (comp);
        comp = NULL;

        if (!prop)
            prop = find_attendee (pitip->ical_comp, my_address);
        if (!prop)
            prop = find_attendee_if_sentby (pitip->ical_comp, my_address);
        if (prop) {
            icalparameter *param;
            const gchar * delfrom;

            if ((param = icalproperty_get_first_parameter (prop, ICAL_DELEGATEDFROM_PARAMETER))) {
                delfrom = icalparameter_get_delegatedfrom (param);

                pitip->delegator_address = g_strdup (itip_strip_mailto (delfrom));
            }
        }
        g_free (my_address);
        prop = NULL;

        /* Determine any delegate sections */
        prop = icalcomponent_get_first_property (pitip->ical_comp, ICAL_X_PROPERTY);
        while (prop) {
            const gchar *x_name, *x_val;

            x_name = icalproperty_get_x_name (prop);
            x_val = icalproperty_get_x (prop);

            if (!strcmp (x_name, "X-EVOLUTION-DELEGATOR-CALENDAR-UID"))
                pitip->calendar_uid = g_strdup (x_val);
            else if (!strcmp (x_name, "X-EVOLUTION-DELEGATOR-CALENDAR-URI"))
                g_warning (G_STRLOC ": X-EVOLUTION-DELEGATOR-CALENDAR-URI used");
            else if (!strcmp (x_name, "X-EVOLUTION-DELEGATOR-ADDRESS"))
                pitip->delegator_address = g_strdup (x_val);
            else if (!strcmp (x_name, "X-EVOLUTION-DELEGATOR-NAME"))
                pitip->delegator_name = g_strdup (x_val);

            prop = icalcomponent_get_next_property (pitip->ical_comp, ICAL_X_PROPERTY);
        }

        /* Strip out procedural alarms for security purposes */
        alarm_iter = icalcomponent_begin_component (pitip->ical_comp, ICAL_VALARM_COMPONENT);
        while ((alarm_comp = icalcompiter_deref (&alarm_iter)) != NULL) {
            icalproperty *p;

            icalcompiter_next (&alarm_iter);

            p = icalcomponent_get_first_property (alarm_comp, ICAL_ACTION_PROPERTY);
            if (!p || icalproperty_get_action (p) == ICAL_ACTION_PROCEDURE)
                icalcomponent_remove_component (pitip->ical_comp, alarm_comp);

            icalcomponent_free (alarm_comp);
        }

        if (have_alarms) {
            alarm_iter = icalcomponent_begin_component (pitip->ical_comp, ICAL_VALARM_COMPONENT);
            *have_alarms = icalcompiter_deref (&alarm_iter) != NULL;
        }
    }

    pitip->comp = e_cal_component_new ();
    if (!e_cal_component_set_icalcomponent (pitip->comp, pitip->ical_comp)) {
        g_object_unref (pitip->comp);
        pitip->comp = NULL;

        set_itip_error (
            view,
            _("The item in the calendar is not valid"),
            _("The message does contain a calendar, but the calendar contains no events, tasks or free/busy information"),
            FALSE);

        return FALSE;
    };

    /* Add default reminder if the config says so */

    settings = g_settings_new ("org.gnome.evolution.calendar");

    use_default_reminder =
        g_settings_get_boolean (settings, "use-default-reminder");

    if (use_default_reminder) {
        ECalComponentAlarm *acomp;
        gint interval;
        EDurationType units;
        ECalComponentAlarmTrigger trigger;

        interval = g_settings_get_int (
            settings, "default-reminder-interval");
        units = g_settings_get_enum (
            settings, "default-reminder-units");

        acomp = e_cal_component_alarm_new ();

        e_cal_component_alarm_set_action (acomp, E_CAL_COMPONENT_ALARM_DISPLAY);

        trigger.type = E_CAL_COMPONENT_ALARM_TRIGGER_RELATIVE_START;
        memset (&trigger.u.rel_duration, 0, sizeof (trigger.u.rel_duration));

        trigger.u.rel_duration.is_neg = TRUE;

        switch (units) {
            case E_DURATION_MINUTES:
                trigger.u.rel_duration.minutes = interval;
                break;
            case E_DURATION_HOURS:
                trigger.u.rel_duration.hours = interval;
                break;
            case E_DURATION_DAYS:
                trigger.u.rel_duration.days = interval;
                break;
            default:
                g_assert_not_reached ();
        }

        e_cal_component_alarm_set_trigger (acomp, trigger);
        e_cal_component_add_alarm (pitip->comp, acomp);

        e_cal_component_alarm_free (acomp);
    }

    g_object_unref (settings);

    find_from_address (view, pitip, pitip->ical_comp);
    find_to_address (view, pitip, pitip->ical_comp, NULL);

    return TRUE;
}

static gboolean
idle_open_cb (gpointer data)
{
    EMailPartItip *pitip = data;
    EShell *shell;
    const gchar *uris[2];
    gchar *start, *end, *shell_uri;

    start = isodate_from_time_t (pitip->start_time ? pitip->start_time : time (NULL));
    end = isodate_from_time_t (pitip->end_time ? pitip->end_time : time (NULL));
    shell_uri = g_strdup_printf ("calendar:///?startdate=%s&enddate=%s", start, end);

    uris[0] = shell_uri;
    uris[1] = NULL;

    shell = e_shell_get_default ();
    e_shell_handle_uris (shell, uris, FALSE);

    g_free (shell_uri);
    g_free (start);
    g_free (end);

    return FALSE;
}

static void
view_response_cb (ItipView *view,
                  ItipViewResponse response,
                  gpointer data)
{
    EMailPartItip *pitip = data;
    gboolean status = FALSE;
    icalproperty *prop;
    ECalComponentTransparency trans;

    if (response == ITIP_VIEW_RESPONSE_SAVE) {
        save_vcalendar_cb (pitip);
        return;
    }

    if (pitip->method == ICAL_METHOD_PUBLISH || pitip->method ==  ICAL_METHOD_REQUEST) {
        if (itip_view_get_free_time_check_state (view))
            e_cal_component_set_transparency (pitip->comp, E_CAL_COMPONENT_TRANSP_TRANSPARENT);
        else
            e_cal_component_set_transparency (pitip->comp, E_CAL_COMPONENT_TRANSP_OPAQUE);
    } else {
        e_cal_component_get_transparency (pitip->comp, &trans);

        if (trans == E_CAL_COMPONENT_TRANSP_NONE)
            e_cal_component_set_transparency (pitip->comp, E_CAL_COMPONENT_TRANSP_OPAQUE);
    }

    if (!pitip->to_address && pitip->current_client != NULL)
        e_client_get_backend_property_sync (E_CLIENT (pitip->current_client), CAL_BACKEND_PROPERTY_CAL_EMAIL_ADDRESS, &pitip->to_address, NULL, NULL);

    /* check if it is a  recur instance (no master object) and
     * add a property */
    if (itip_view_get_recur_check_state (view)) {
        prop = icalproperty_new_x ("All");
        icalproperty_set_x_name (prop, "X-GW-RECUR-INSTANCES-MOD-TYPE");
        icalcomponent_add_property (pitip->ical_comp, prop);
    }

    switch (response) {
        case ITIP_VIEW_RESPONSE_ACCEPT:
            if (pitip->type != E_CAL_CLIENT_SOURCE_TYPE_MEMOS)
                status = change_status (
                    view->priv->registry,
                    pitip->ical_comp,
                    pitip->to_address,
                    ICAL_PARTSTAT_ACCEPTED);
            else
                status = TRUE;
            if (status) {
                e_cal_component_rescan (pitip->comp);
                update_item (pitip, view, response);
            }
            break;
        case ITIP_VIEW_RESPONSE_TENTATIVE:
            status = change_status (
                    view->priv->registry,
                    pitip->ical_comp,
                    pitip->to_address,
                    ICAL_PARTSTAT_TENTATIVE);
            if (status) {
                e_cal_component_rescan (pitip->comp);
                update_item (pitip, view, response);
            }
            break;
        case ITIP_VIEW_RESPONSE_DECLINE:
            if (pitip->type != E_CAL_CLIENT_SOURCE_TYPE_MEMOS)
                status = change_status (
                    view->priv->registry,
                    pitip->ical_comp,
                    pitip->to_address,
                    ICAL_PARTSTAT_DECLINED);
            else {
                prop = icalproperty_new_x ("1");
                icalproperty_set_x_name (prop, "X-GW-DECLINED");
                icalcomponent_add_property (pitip->ical_comp, prop);
                status = TRUE;
            }

            if (status) {
                e_cal_component_rescan (pitip->comp);
                update_item (pitip, view, response);
            }
            break;
        case ITIP_VIEW_RESPONSE_UPDATE:
            update_attendee_status (pitip, view);
            break;
        case ITIP_VIEW_RESPONSE_CANCEL:
            update_item (pitip, view, response);
            break;
        case ITIP_VIEW_RESPONSE_REFRESH:
            send_item (pitip, view);
            break;
        case ITIP_VIEW_RESPONSE_OPEN:
            /* Prioritize ahead of GTK+ redraws. */
            g_idle_add_full (
                G_PRIORITY_HIGH_IDLE,
                idle_open_cb, pitip, NULL);
            return;
        default:
            break;
    }
}

static gboolean
check_is_instance (icalcomponent *icalcomp)
{
    icalproperty *icalprop;

    icalprop = icalcomponent_get_first_property (icalcomp, ICAL_X_PROPERTY);
    while (icalprop) {
        const gchar *x_name;

        x_name = icalproperty_get_x_name (icalprop);
        if (!strcmp (x_name, "X-GW-RECURRENCE-KEY")) {
            return TRUE;
        }
        icalprop = icalcomponent_get_next_property (icalcomp, ICAL_X_PROPERTY);
    }

    return FALSE;
}

static gboolean
in_proper_folder (CamelFolder *folder)
{
    EShell *shell;
    EShellBackend *shell_backend;
    EMailBackend *backend;
    EMailSession *session;
    MailFolderCache *folder_cache;
    ESourceRegistry *registry;
    CamelStore *store;
    const gchar *folder_name;
    gboolean res = TRUE;
    CamelFolderInfoFlags flags = 0;
    gboolean have_flags;

    if (folder == NULL)
        return FALSE;

    shell = e_shell_get_default ();
    registry = e_shell_get_registry (shell);
    shell_backend = e_shell_get_backend_by_name (shell, "mail");
    backend = E_MAIL_BACKEND (shell_backend);
    session = e_mail_backend_get_session (backend);
    folder_cache = e_mail_session_get_folder_cache (session);

    store = camel_folder_get_parent_store (folder);
    folder_name = camel_folder_get_full_name (folder);

    have_flags = mail_folder_cache_get_folder_info_flags (
        folder_cache, store, folder_name, &flags);

    if (have_flags) {
        /* it should be neither trash nor junk folder, */
        res = ((flags & CAMEL_FOLDER_TYPE_MASK) !=  CAMEL_FOLDER_TYPE_TRASH &&
               (flags & CAMEL_FOLDER_TYPE_MASK) != CAMEL_FOLDER_TYPE_JUNK &&
              /* it can be Inbox */
            ((flags & CAMEL_FOLDER_TYPE_MASK) == CAMEL_FOLDER_TYPE_INBOX ||
              /* or any other virtual folder */
              CAMEL_IS_VEE_FOLDER (folder) ||
              /* or anything else except of sent, outbox or drafts folder */
              (!em_utils_folder_is_sent (registry, folder) &&
               !em_utils_folder_is_outbox (registry, folder) &&
               !em_utils_folder_is_drafts (registry, folder))
            ));
    } else {
        /* cannot check for Inbox folder here */
        res = (folder->folder_flags & (CAMEL_FOLDER_IS_TRASH | CAMEL_FOLDER_IS_JUNK)) == 0 && (
              (CAMEL_IS_VEE_FOLDER (folder)) || (
              !em_utils_folder_is_sent (registry, folder) &&
              !em_utils_folder_is_outbox (registry, folder) &&
              !em_utils_folder_is_drafts (registry, folder)));
    }

    return res;
}

void
itip_view_init_view (ItipView *view)
{
    EShell *shell;
    EClientCache *client_cache;
    ECalComponentText text;
    ECalComponentOrganizer organizer;
    ECalComponentDateTime datetime;
    icaltimezone *from_zone;
    icaltimezone *to_zone = NULL;
    GSettings *settings;
    GString *gstring = NULL;
    GSList *list, *l;
    icalcomponent *icalcomp;
    const gchar *string, *org;
    gboolean response_enabled;
    gboolean have_alarms = FALSE;
    EMailPartItip *info;

    info = view->priv->itip_part;
    g_return_if_fail (info != NULL);

    shell = e_shell_get_default ();
    client_cache = e_shell_get_client_cache (shell);

    info->client_cache = g_object_ref (client_cache);

        /* Reset current client before initializing view */
    info->current_client = NULL;

        /* FIXME Handle multiple VEVENTS with the same UID, ie detached instances */
    if (!extract_itip_data (info, view, &have_alarms))
        return;

    response_enabled = in_proper_folder (info->folder);

    if (!response_enabled) {
        itip_view_set_mode (view, ITIP_VIEW_MODE_HIDE_ALL);
    } else {
        itip_view_set_show_inherit_alarm_check (
            view,
            have_alarms && (info->method == ICAL_METHOD_PUBLISH || info->method ==  ICAL_METHOD_REQUEST));

        switch (info->method) {
            case ICAL_METHOD_PUBLISH:
            case ICAL_METHOD_REQUEST:
                                /*
                                 * Treat meeting request (sent by organizer directly) and
                                 * published evend (forwarded by organizer or attendee) alike:
                                 * if the event has an organizer, then it can be replied to and
                                 * we show the "accept/tentative/decline" choice.
                                 * Otherwise only show "accept".
                                 */
                itip_view_set_mode (
                    view,
                    info->has_organizer ?
                    ITIP_VIEW_MODE_REQUEST :
                    ITIP_VIEW_MODE_PUBLISH);
                break;
            case ICAL_METHOD_REPLY:
                itip_view_set_mode (view, ITIP_VIEW_MODE_REPLY);
                break;
            case ICAL_METHOD_ADD:
                itip_view_set_mode (view, ITIP_VIEW_MODE_ADD);
                break;
            case ICAL_METHOD_CANCEL:
                itip_view_set_mode (view, ITIP_VIEW_MODE_CANCEL);
                break;
            case ICAL_METHOD_REFRESH:
                itip_view_set_mode (view, ITIP_VIEW_MODE_REFRESH);
                break;
            case ICAL_METHOD_COUNTER:
                itip_view_set_mode (view, ITIP_VIEW_MODE_COUNTER);
                break;
            case ICAL_METHOD_DECLINECOUNTER:
                itip_view_set_mode (view, ITIP_VIEW_MODE_DECLINECOUNTER);
                break;
            case ICAL_METHOD_X :
                                /* Handle appointment requests from Microsoft Live. This is
                                 * a best-at-hand-now handling. Must be revisited when we have
                                 * better access to the source of such meetings */
                info->method = ICAL_METHOD_REQUEST;
                itip_view_set_mode (view, ITIP_VIEW_MODE_REQUEST);
                break;
            default:
                return;
        }
    }

    itip_view_set_item_type (view, info->type);

    if (response_enabled) {
        switch (info->method) {
            case ICAL_METHOD_REQUEST:
                                /* FIXME What about the name? */
                itip_view_set_delegator (view, info->delegator_name ? info->delegator_name : info->delegator_address);
                /* coverity[fallthrough] */
            case ICAL_METHOD_PUBLISH:
            case ICAL_METHOD_ADD:
            case ICAL_METHOD_CANCEL:
            case ICAL_METHOD_DECLINECOUNTER:
                itip_view_set_show_update_check (view, FALSE);

                                /* An organizer sent this */
                e_cal_component_get_organizer (info->comp, &organizer);
                org = organizer.cn ? organizer.cn : itip_strip_mailto (organizer.value);

                itip_view_set_organizer (view, org);
                if (organizer.sentby)
                    itip_view_set_organizer_sentby (
                        view, itip_strip_mailto (organizer.sentby));

                if (info->my_address) {
                    if (!(organizer.value && !g_ascii_strcasecmp (itip_strip_mailto (organizer.value), info->my_address))
                        && !(organizer.sentby && !g_ascii_strcasecmp (itip_strip_mailto (organizer.sentby), info->my_address))
                        && (info->to_address && g_ascii_strcasecmp (info->to_address, info->my_address)))
                        itip_view_set_proxy (view, info->to_name ? info->to_name : info->to_address);
                }
                break;
            case ICAL_METHOD_REPLY:
            case ICAL_METHOD_REFRESH:
            case ICAL_METHOD_COUNTER:
                itip_view_set_show_update_check (view, TRUE);

                                /* An attendee sent this */
                e_cal_component_get_attendee_list (info->comp, &list);
                if (list != NULL) {
                    ECalComponentAttendee *attendee;

                    attendee = list->data;

                    itip_view_set_attendee (view, attendee->cn ? attendee->cn : itip_strip_mailto (attendee->value));

                    if (attendee->sentby)
                        itip_view_set_attendee_sentby (view, itip_strip_mailto (attendee->sentby));

                    if (info->my_address) {
                        if (!(attendee->value && !g_ascii_strcasecmp (itip_strip_mailto (attendee->value), info->my_address))
                            && !(attendee->sentby && !g_ascii_strcasecmp (itip_strip_mailto (attendee->sentby), info->my_address))
                            && (info->from_address && g_ascii_strcasecmp (info->from_address, info->my_address)))
                            itip_view_set_proxy (view, info->from_name ? info->from_name : info->from_address);
                    }

                    e_cal_component_free_attendee_list (list);
                }
                break;
            default:
                g_assert_not_reached ();
                break;
        }
    }

    e_cal_component_get_summary (info->comp, &text);
    itip_view_set_summary (view, text.value ? text.value : C_("cal-itip", "None"));

    e_cal_component_get_location (info->comp, &string);
    itip_view_set_location (view, string);

        /* Status really only applies for REPLY */
    if (response_enabled && info->method == ICAL_METHOD_REPLY) {
        e_cal_component_get_attendee_list (info->comp, &list);
        if (list != NULL) {
            ECalComponentAttendee *a = list->data;

            switch (a->status) {
                case ICAL_PARTSTAT_ACCEPTED:
                    itip_view_set_status (view, _("Accepted"));
                    break;
                case ICAL_PARTSTAT_TENTATIVE:
                    itip_view_set_status (view, _("Tentatively Accepted"));
                    break;
                case ICAL_PARTSTAT_DECLINED:
                    itip_view_set_status (view, _("Declined"));
                    break;
                case ICAL_PARTSTAT_DELEGATED:
                    itip_view_set_status (view, _("Delegated"));
                    break;
                default:
                    itip_view_set_status (view, _("Unknown"));
            }
        }
        e_cal_component_free_attendee_list (list);
    }

    if (info->method == ICAL_METHOD_REPLY
        || info->method == ICAL_METHOD_COUNTER
        || info->method == ICAL_METHOD_DECLINECOUNTER) {
                /* FIXME Check spec to see if multiple comments are actually valid */
                /* Comments for iTIP are limited to one per object */
        e_cal_component_get_comment_list (info->comp, &list);
        if (list) {
            ECalComponentText *text = list->data;

            if (text->value) {
                gchar *html;

                html = camel_text_to_html (
                    text->value,
                    CAMEL_MIME_FILTER_TOHTML_CONVERT_NL |
                    CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS |
                    CAMEL_MIME_FILTER_TOHTML_CONVERT_ADDRESSES,
                    0);

                itip_view_set_comment (view, html);

                g_free (html);
            }
        }
        e_cal_component_free_text_list (list);
    }

    e_cal_component_get_description_list (info->comp, &list);
    for (l = list; l; l = l->next) {
        ECalComponentText *text = l->data;

        if (!gstring && text->value)
            gstring = g_string_new (text->value);
        else if (text->value)
            g_string_append_printf (gstring, "\n\n%s", text->value);
    }

    e_cal_component_free_text_list (list);

    if (gstring) {
        gchar *html;

        html = camel_text_to_html (
            gstring->str,
            CAMEL_MIME_FILTER_TOHTML_CONVERT_NL |
            CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES |
            CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS |
            CAMEL_MIME_FILTER_TOHTML_MARK_CITATION |
            CAMEL_MIME_FILTER_TOHTML_CONVERT_ADDRESSES,
            0);

        itip_view_set_description (view, html);
        g_string_free (gstring, TRUE);
        g_free (html);
    }

    settings = g_settings_new ("org.gnome.evolution.calendar");

    if (g_settings_get_boolean (settings, "use-system-timezone"))
        to_zone = e_cal_util_get_system_timezone ();
    else {
        gchar *location;

        location = g_settings_get_string (settings, "timezone");
        if (location != NULL) {
            to_zone = icaltimezone_get_builtin_timezone (location);
            g_free (location);
        }
    }

    if (to_zone == NULL)
        to_zone = icaltimezone_get_utc_timezone ();

    g_object_unref (settings);

    e_cal_component_get_dtstart (info->comp, &datetime);
    info->start_time = 0;
    if (datetime.value) {
        struct tm start_tm;

                /* If the timezone is not in the component, guess the local time */
                /* Should we guess if the timezone is an olsen name somehow? */
        if (datetime.value->is_utc)
            from_zone = icaltimezone_get_utc_timezone ();
        else if (!datetime.value->is_utc && datetime.tzid)
            from_zone = icalcomponent_get_timezone (info->top_level, datetime.tzid);
        else
            from_zone = NULL;

        start_tm = icaltimetype_to_tm_with_zone (datetime.value, from_zone, to_zone);

        itip_view_set_start (view, &start_tm, datetime.value->is_date);
        info->start_time = icaltime_as_timet_with_zone (*datetime.value, from_zone);
    }

    icalcomp = e_cal_component_get_icalcomponent (info->comp);

        /* Set the recurrence id */
    if (check_is_instance (icalcomp) && datetime.value) {
        ECalComponentRange *recur_id;
        struct icaltimetype icaltime = icaltime_convert_to_zone (*datetime.value, to_zone);

        recur_id = g_new0 (ECalComponentRange, 1);
        recur_id->type = E_CAL_COMPONENT_RANGE_SINGLE;
        recur_id->datetime.value = &icaltime;
        recur_id->datetime.tzid = icaltimezone_get_tzid (to_zone);
        e_cal_component_set_recurid (info->comp, recur_id);
        g_free (recur_id); /* it's ok to call g_free here */
    }
    e_cal_component_free_datetime (&datetime);

    e_cal_component_get_dtend (info->comp, &datetime);
    info->end_time = 0;
    if (datetime.value) {
        struct tm end_tm;

                /* If the timezone is not in the component, guess the local time */
                /* Should we guess if the timezone is an olsen name somehow? */
        if (datetime.value->is_utc)
            from_zone = icaltimezone_get_utc_timezone ();
        else if (!datetime.value->is_utc && datetime.tzid)
            from_zone = icalcomponent_get_timezone (info->top_level, datetime.tzid);
        else
            from_zone = NULL;

        if (datetime.value->is_date) {
                        /* RFC says the DTEND is not inclusive, thus subtract one day
                         * if we have a date */

            icaltime_adjust (datetime.value, -1, 0, 0, 0);
        }

        end_tm = icaltimetype_to_tm_with_zone (datetime.value, from_zone, to_zone);

        itip_view_set_end (view, &end_tm, datetime.value->is_date);
        info->end_time = icaltime_as_timet_with_zone (*datetime.value, from_zone);
    }
    e_cal_component_free_datetime (&datetime);

        /* Recurrence info */
        /* FIXME Better recurring description */
    if (e_cal_component_has_recurrences (info->comp)) {
                /* FIXME Tell the user we don't support recurring tasks */
        switch (info->type) {
            case E_CAL_CLIENT_SOURCE_TYPE_EVENTS:
                itip_view_add_upper_info_item (view, ITIP_VIEW_INFO_ITEM_TYPE_INFO, _("This meeting recurs"));
                break;
            case E_CAL_CLIENT_SOURCE_TYPE_TASKS:
                itip_view_add_upper_info_item (view, ITIP_VIEW_INFO_ITEM_TYPE_INFO, _("This task recurs"));
                break;
            case E_CAL_CLIENT_SOURCE_TYPE_MEMOS:
                itip_view_add_upper_info_item (view, ITIP_VIEW_INFO_ITEM_TYPE_INFO, _("This memo recurs"));
                break;
            default:
                g_assert_not_reached ();
                break;
        }
    }

    g_signal_connect (
        view, "response",
        G_CALLBACK (view_response_cb), info);

    if (response_enabled) {
        itip_view_set_show_free_time_check (view, info->type == E_CAL_CLIENT_SOURCE_TYPE_EVENTS && (info->method == ICAL_METHOD_PUBLISH || info->method ==  ICAL_METHOD_REQUEST));

        if (info->calendar_uid) {
            start_calendar_server_by_uid (info, view, info->calendar_uid, info->type);
        } else {
            find_server (info, view, info->comp);
            set_buttons_sensitive (info, view);
        }
    } else if (view->priv->dom_document) {
        /* The Open Calendar button can be shown, thus enable it */
        WebKitDOMElement *el;

        el = webkit_dom_document_get_element_by_id (
            view->priv->dom_document, BUTTON_OPEN_CALENDAR);
        webkit_dom_html_button_element_set_disabled (
            WEBKIT_DOM_HTML_BUTTON_ELEMENT (el), FALSE);
    }
}