path: root/composer/e-composer-header-table.c

/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 */

#include "e-composer-header-table.h"

#include <string.h>
#include <glib/gi18n-lib.h>
#include <libedataserverui/e-name-selector.h>

#include <shell/e-shell.h>
#include <e-util/e-binding.h>
#include <e-util/gconf-bridge.h>
#include <misc/e-signature-combo-box.h>

#include "e-msg-composer.h"
#include "e-composer-private.h"
#include "e-composer-from-header.h"
#include "e-composer-name-header.h"
#include "e-composer-post-header.h"
#include "e-composer-text-header.h"

#define E_COMPOSER_HEADER_TABLE_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_COMPOSER_HEADER_TABLE, EComposerHeaderTablePrivate))

#define HEADER_TOOLTIP_TO \
    _("Enter the recipients of the message")
#define HEADER_TOOLTIP_CC \
    _("Enter the addresses that will receive a " \
      "carbon copy of the message")
#define HEADER_TOOLTIP_BCC \
    _("Enter the addresses that will receive a " \
      "carbon copy of the message without appearing " \
      "in the recipient list of the message")

enum {
    PROP_0,
    PROP_ACCOUNT,
    PROP_ACCOUNT_LIST,
    PROP_ACCOUNT_NAME,
    PROP_DESTINATIONS_BCC,
    PROP_DESTINATIONS_CC,
    PROP_DESTINATIONS_TO,
    PROP_POST_TO,
    PROP_REPLY_TO,
    PROP_SHELL,
    PROP_SIGNATURE,
    PROP_SIGNATURE_LIST,
    PROP_SUBJECT
};

struct _EComposerHeaderTablePrivate {
    EComposerHeader *headers[E_COMPOSER_NUM_HEADERS];
    guint gconf_bindings[E_COMPOSER_NUM_HEADERS];
    GtkWidget *signature_label;
    GtkWidget *signature_combo_box;
    ENameSelector *name_selector;
    EShell *shell;
};

static gpointer parent_class;

static void
g_value_set_destinations (GValue *value,
                          EDestination **destinations)
{
    GValueArray *value_array;
    GValue element;
    gint ii;

    memset (&element, 0, sizeof (GValue));
    g_value_init (&element, E_TYPE_DESTINATION);

    /* Preallocate some reasonable number. */
    value_array = g_value_array_new (64);

    for (ii = 0; destinations[ii] != NULL; ii++) {
        g_value_set_object (&element, destinations[ii]);
        g_value_array_append (value_array, &element);
    }

    g_value_take_boxed (value, value_array);
}

static EDestination **
g_value_dup_destinations (const GValue *value)
{
    EDestination **destinations;
    GValueArray *value_array;
    GValue *element;
    gint ii;

    value_array = g_value_get_boxed (value);
    destinations = g_new0 (EDestination *, value_array->n_values + 1);

    for (ii = 0; ii < value_array->n_values; ii++) {
        element = g_value_array_get_nth (value_array, ii);
        destinations[ii] = g_value_dup_object (element);
    }

    return destinations;
}

static void
g_value_set_string_list (GValue *value,
                         GList *list)
{
    GValueArray *value_array;
    GValue element;

    memset (&element, 0, sizeof (GValue));
    g_value_init (&element, G_TYPE_STRING);

    value_array = g_value_array_new (g_list_length (list));

    while (list != NULL) {
        g_value_set_string (&element, list->data);
        g_value_array_append (value_array, &element);
    }

    g_value_take_boxed (value, value_array);
}

static GList *
g_value_dup_string_list (const GValue *value)
{
    GValueArray *value_array;
    GList *list = NULL;
    GValue *element;
    gint ii;

    value_array = g_value_get_boxed (value);

    for (ii = 0; ii < value_array->n_values; ii++) {
        element = g_value_array_get_nth (value_array, ii);
        list = g_list_prepend (list, g_value_dup_string (element));
    }

    return g_list_reverse (list);
}

static void
composer_header_table_notify_header (EComposerHeader *header,
                                     const gchar *property_name)
{
    GtkWidget *parent;

    parent = gtk_widget_get_parent (header->input_widget);
    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (parent));
    g_object_notify (G_OBJECT (parent), property_name);
}

static void
composer_header_table_notify_widget (GtkWidget *widget,
                                     const gchar *property_name)
{
    GtkWidget *parent;

    if (e_msg_composer_get_lite ()) {
        parent = gtk_widget_get_parent (widget);
        parent = g_object_get_data (G_OBJECT (parent), "pdata");
    } else
        parent = gtk_widget_get_parent (widget);
    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (parent));
    g_object_notify (G_OBJECT (parent), property_name);
}

static void
composer_header_table_bind_header (const gchar *property_name,
                                   const gchar *signal_name,
                                   EComposerHeader *header)
{
    /* Propagate the signal as "notify::property_name". */

    g_signal_connect (
        header, signal_name,
        G_CALLBACK (composer_header_table_notify_header),
        (gpointer) property_name);
}

static void
composer_header_table_bind_widget (const gchar *property_name,
                                   const gchar *signal_name,
                                   GtkWidget *widget)
{
    /* Propagate the signal as "notify::property_name". */

    g_signal_connect (
        widget, signal_name,
        G_CALLBACK (composer_header_table_notify_widget),
        (gpointer) property_name);
}

static EDestination **
composer_header_table_update_destinations (EDestination **old_destinations,
                                           const gchar *auto_addresses)
{
    CamelAddress *address;
    CamelInternetAddress *inet_address;
    EDestination **new_destinations;
    EDestination *destination;
    GList *list = NULL;
    guint length;
    gint ii;

    /* Include automatic recipients for the selected account. */

    if (auto_addresses == NULL)
        goto skip_auto;

    inet_address = camel_internet_address_new ();
    address = CAMEL_ADDRESS (inet_address);

    if (camel_address_decode (address, auto_addresses) != -1) {
        for (ii = 0; ii < camel_address_length (address); ii++) {
            const gchar *name, *email;

            if (!camel_internet_address_get (
                inet_address, ii, &name, &email))
                continue;

            destination = e_destination_new ();
            e_destination_set_auto_recipient (destination, TRUE);

            if (name != NULL)
                e_destination_set_name (destination, name);

            if (email != NULL)
                e_destination_set_email (destination, email);

            list = g_list_prepend (list, destination);
        }
    }

    g_object_unref (inet_address);

skip_auto:

    /* Include custom recipients for this message. */

    if (old_destinations == NULL)
        goto skip_custom;

    for (ii = 0; old_destinations[ii] != NULL; ii++) {
        if (e_destination_is_auto_recipient (old_destinations[ii]))
            continue;

        destination = e_destination_copy (old_destinations[ii]);
        list = g_list_prepend (list, destination);
    }

skip_custom:

    list = g_list_reverse (list);
    length = g_list_length (list);

    new_destinations = g_new0 (EDestination *, length + 1);

    for (ii = 0; list != NULL; ii++) {
        new_destinations[ii] = E_DESTINATION (list->data);
        list = g_list_delete_link (list, list);
    }

    return new_destinations;
}

static gboolean
from_header_should_be_visible (EComposerHeaderTable *table)
{
    EShell *shell;
    EComposerHeader *header;
    EComposerHeaderType type;
    EAccountComboBox *combo_box;

    shell = e_composer_header_table_get_shell (table);

    /* Always display From in standard mode. */
    if (!e_shell_get_express_mode (shell))
        return TRUE;

    type = E_COMPOSER_HEADER_FROM;
    header = e_composer_header_table_get_header (table, type);
    combo_box = E_ACCOUNT_COMBO_BOX (header->input_widget);

    return (e_account_combo_box_count_displayed_accounts (combo_box) > 1);
}

static void
composer_header_table_setup_mail_headers (EComposerHeaderTable *table)
{
    GConfBridge *bridge;
    gint ii;

    bridge = gconf_bridge_get ();

    for (ii = 0; ii < E_COMPOSER_NUM_HEADERS; ii++) {
        EComposerHeader *header;
        const gchar *key;
        guint binding_id;
        gboolean sensitive;
        gboolean visible;

        binding_id = table->priv->gconf_bindings[ii];
        header = e_composer_header_table_get_header (table, ii);

        if (binding_id > 0)
            gconf_bridge_unbind (bridge, binding_id);

        switch (ii) {
            case E_COMPOSER_HEADER_BCC:
                key = COMPOSER_GCONF_PREFIX "/show_mail_bcc";
                break;

            case E_COMPOSER_HEADER_CC:
                key = COMPOSER_GCONF_PREFIX "/show_mail_cc";
                break;

            case E_COMPOSER_HEADER_REPLY_TO:
                key = COMPOSER_GCONF_PREFIX "/show_mail_reply_to";
                break;

            default:
                key = NULL;
                break;
        }

        switch (ii) {
            case E_COMPOSER_HEADER_FROM:
                sensitive = TRUE;
                visible = from_header_should_be_visible (table);
                break;

            case E_COMPOSER_HEADER_BCC:
            case E_COMPOSER_HEADER_CC:
            case E_COMPOSER_HEADER_REPLY_TO:
            case E_COMPOSER_HEADER_SUBJECT:
            case E_COMPOSER_HEADER_TO:
                sensitive = TRUE;
                visible = TRUE;
                break;

            default:
                sensitive = FALSE;
                visible = FALSE;
                break;
        }

        e_composer_header_set_sensitive (header, sensitive);
        e_composer_header_set_visible (header, visible);

        if (key != NULL)
            binding_id = gconf_bridge_bind_property (
                bridge, key, G_OBJECT (header), "visible");
        else
            binding_id = 0;

        table->priv->gconf_bindings[ii] = binding_id;
    }
}

static void
composer_header_table_setup_post_headers (EComposerHeaderTable *table)
{
    GConfBridge *bridge;
    gint ii;

    bridge = gconf_bridge_get ();

    for (ii = 0; ii < E_COMPOSER_NUM_HEADERS; ii++) {
        EComposerHeader *header;
        const gchar *key;
        guint binding_id;

        binding_id = table->priv->gconf_bindings[ii];
        header = e_composer_header_table_get_header (table, ii);

        if (binding_id > 0)
            gconf_bridge_unbind (bridge, binding_id);

        switch (ii) {
            case E_COMPOSER_HEADER_FROM:
                key = COMPOSER_GCONF_PREFIX "/show_post_from";
                break;

            case E_COMPOSER_HEADER_REPLY_TO:
                key = COMPOSER_GCONF_PREFIX "/show_post_reply_to";
                break;

            default:
                key = NULL;
                break;
        }

        switch (ii) {
            case E_COMPOSER_HEADER_FROM:
            case E_COMPOSER_HEADER_POST_TO:
            case E_COMPOSER_HEADER_REPLY_TO:
            case E_COMPOSER_HEADER_SUBJECT:
                e_composer_header_set_sensitive (header, TRUE);
                e_composer_header_set_visible (header, TRUE);
                break;

            default:  /* this includes TO, CC and BCC */
                e_composer_header_set_sensitive (header, FALSE);
                e_composer_header_set_visible (header, FALSE);
                break;
        }

        if (key != NULL)
            binding_id = gconf_bridge_bind_property (
                bridge, key, G_OBJECT (header), "visible");
        else
            binding_id = 0;

        table->priv->gconf_bindings[ii] = binding_id;
    }
}

static void
composer_header_table_from_changed_cb (EComposerHeaderTable *table)
{
    EAccount *account;
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerPostHeader *post_header;
    EComposerTextHeader *text_header;
    EDestination **old_destinations;
    EDestination **new_destinations;
    const gchar *reply_to;
    const gchar *source_url;
    gboolean always_cc;
    gboolean always_bcc;

    /* Keep "Post-To" and "Reply-To" synchronized with "From" */

    account = e_composer_header_table_get_account (table);
    source_url = e_account_get_string (account, E_ACCOUNT_SOURCE_URL);

    type = E_COMPOSER_HEADER_POST_TO;
    header = e_composer_header_table_get_header (table, type);
    post_header = E_COMPOSER_POST_HEADER (header);
    e_composer_post_header_set_account (post_header, account);

    type = E_COMPOSER_HEADER_REPLY_TO;
    header = e_composer_header_table_get_header (table, type);
    reply_to = (account != NULL) ? account->id->reply_to : NULL;
    text_header = E_COMPOSER_TEXT_HEADER (header);
    e_composer_text_header_set_text (text_header, reply_to);

    always_cc = (account != NULL && account->always_cc);
    always_bcc = (account != NULL && account->always_bcc);

    /* Update automatic CC destinations. */
    old_destinations =
        e_composer_header_table_get_destinations_cc (table);
    new_destinations =
        composer_header_table_update_destinations (
        old_destinations, always_cc ? account->cc_addrs : NULL);
    e_composer_header_table_set_destinations_cc (table, new_destinations);
    e_destination_freev (old_destinations);
    e_destination_freev (new_destinations);

    /* Update automatic BCC destinations. */
    old_destinations =
        e_composer_header_table_get_destinations_bcc (table);
    new_destinations =
        composer_header_table_update_destinations (
        old_destinations, always_bcc ? account->bcc_addrs : NULL);
    e_composer_header_table_set_destinations_bcc (table, new_destinations);
    e_destination_freev (old_destinations);
    e_destination_freev (new_destinations);

    /* XXX We should NOT be checking specific account types here.
     *     Would prefer EAccount have a "send_method" enum item:
     *
     *         E_ACCOUNT_SEND_METHOD_MAIL
     *         E_ACCOUNT_SEND_METHOD_POST
     *
     *     And that would dictate which set of headers we show
     *     in the composer when an account is selected.  Alas,
     *     EAccount has no private storage, so it would require
     *     an ABI break and I don't want to deal with that now.
     *     (But would anything besides Evolution be affected?)
     *
     *     Currently only NNTP accounts use the "POST" fields.
     */
    if (source_url == NULL)
        composer_header_table_setup_mail_headers (table);
    else if (g_ascii_strncasecmp (source_url, "nntp:", 5) == 0)
        composer_header_table_setup_post_headers (table);
    else
        composer_header_table_setup_mail_headers (table);
}

static void
composer_header_table_set_shell (EComposerHeaderTable *table,
                                 EShell *shell)
{
    g_return_if_fail (E_IS_SHELL (shell));
    g_return_if_fail (table->priv->shell == NULL);

    table->priv->shell = g_object_ref (shell);
}

static gint
get_row_padding (void)
{
    /* For small screens, make the header-table's rows be packed closely together */

    if (e_msg_composer_get_lite ())
        return 0;
    else
        return 3;
}

static GObject *
composer_header_table_constructor (GType type,
                                   guint n_construct_properties,
                                   GObjectConstructParam *construct_properties)
{
    GObject *object;
    EComposerHeaderTablePrivate *priv;
    guint rows, ii;
    gint row_padding;

    /* Chain up to parent's constructor() method. */
    object = G_OBJECT_CLASS (parent_class)->constructor (
        type, n_construct_properties, construct_properties);

    priv = E_COMPOSER_HEADER_TABLE_GET_PRIVATE (object);

    rows = G_N_ELEMENTS (priv->headers);
    gtk_table_resize (GTK_TABLE (object), rows, 4);
    gtk_table_set_row_spacings (GTK_TABLE (object), 0);
    gtk_table_set_col_spacings (GTK_TABLE (object), 6);

    /* Use "ypadding" instead of "row-spacing" because some rows may
     * be invisible and we don't want spacing around them. */

    row_padding = get_row_padding ();

    for (ii = 0; ii < rows; ii++) {
        gtk_table_attach (
            GTK_TABLE (object), priv->headers[ii]->title_widget,
            0, 1, ii, ii + 1, GTK_FILL, GTK_FILL, 0, row_padding);
        gtk_table_attach (
            GTK_TABLE (object),
            priv->headers[ii]->input_widget, 1, 4,
            ii, ii + 1, GTK_FILL | GTK_EXPAND, 0, 0, row_padding);
    }

    ii = E_COMPOSER_HEADER_FROM;

    /* Leave room in the "From" row for signature stuff. */
    gtk_container_child_set (
        GTK_CONTAINER (object),
        priv->headers[ii]->input_widget,
        "right-attach", 2, NULL);

    e_binding_new (
        priv->headers[ii]->input_widget, "visible",
        priv->signature_label, "visible");

    e_binding_new (
        priv->headers[ii]->input_widget, "visible",
        priv->signature_combo_box, "visible");

    /* Now add the signature stuff. */
    if (!e_msg_composer_get_lite ()) {
        gtk_table_attach (
            GTK_TABLE (object), priv->signature_label,
            2, 3, ii, ii + 1, 0, 0, 0, row_padding);
        gtk_table_attach (
            GTK_TABLE (object), priv->signature_combo_box,
            3, 4, ii, ii + 1, e_msg_composer_get_lite () ? GTK_FILL: 0, 0, 0, row_padding);
    } else {
        GtkWidget *box = gtk_hbox_new (FALSE, 0);

        gtk_box_pack_start (
            GTK_BOX (box), priv->signature_label,
            FALSE, FALSE, 4);
        gtk_box_pack_end (
            GTK_BOX (box), priv->signature_combo_box,
            TRUE, TRUE, 0);
        g_object_set_data (G_OBJECT (box), "pdata", object);
        gtk_table_attach (
            GTK_TABLE (object), box,
            3, 4, ii, ii + 1, GTK_FILL, 0, 0, row_padding);
        gtk_widget_hide (box);
    }

    return object;
}

static void
composer_header_table_set_property (GObject *object,
                                    guint property_id,
                                    const GValue *value,
                                    GParamSpec *pspec)
{
    EDestination **destinations;
    GList *list;

    switch (property_id) {
        case PROP_ACCOUNT:
            e_composer_header_table_set_account (
                E_COMPOSER_HEADER_TABLE (object),
                g_value_get_object (value));
            return;

        case PROP_ACCOUNT_LIST:
            e_composer_header_table_set_account_list (
                E_COMPOSER_HEADER_TABLE (object),
                g_value_get_object (value));
            return;

        case PROP_ACCOUNT_NAME:
            e_composer_header_table_set_account_name (
                E_COMPOSER_HEADER_TABLE (object),
                g_value_get_string (value));
            return;

        case PROP_DESTINATIONS_BCC:
            destinations = g_value_dup_destinations (value);
            e_composer_header_table_set_destinations_bcc (
                E_COMPOSER_HEADER_TABLE (object),
                destinations);
            e_destination_freev (destinations);
            return;

        case PROP_DESTINATIONS_CC:
            destinations = g_value_dup_destinations (value);
            e_composer_header_table_set_destinations_cc (
                E_COMPOSER_HEADER_TABLE (object),
                destinations);
            e_destination_freev (destinations);
            return;

        case PROP_DESTINATIONS_TO:
            destinations = g_value_dup_destinations (value);
            e_composer_header_table_set_destinations_to (
                E_COMPOSER_HEADER_TABLE (object),
                destinations);
            e_destination_freev (destinations);
            return;

        case PROP_POST_TO:
            list = g_value_dup_string_list (value);
            e_composer_header_table_set_post_to_list (
                E_COMPOSER_HEADER_TABLE (object), list);
            g_list_foreach (list, (GFunc) g_free, NULL);
            g_list_free (list);
            return;

        case PROP_REPLY_TO:
            e_composer_header_table_set_reply_to (
                E_COMPOSER_HEADER_TABLE (object),
                g_value_get_string (value));
            return;

        case PROP_SHELL:
            composer_header_table_set_shell (
                E_COMPOSER_HEADER_TABLE (object),
                g_value_get_object (value));
            return;

        case PROP_SIGNATURE:
            e_composer_header_table_set_signature (
                E_COMPOSER_HEADER_TABLE (object),
                g_value_get_object (value));
            return;

        case PROP_SIGNATURE_LIST:
            e_composer_header_table_set_signature_list (
                E_COMPOSER_HEADER_TABLE (object),
                g_value_get_object (value));
            return;

        case PROP_SUBJECT:
            e_composer_header_table_set_subject (
                E_COMPOSER_HEADER_TABLE (object),
                g_value_get_string (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
composer_header_table_get_property (GObject *object,
                                    guint property_id,
                                    GValue *value,
                                    GParamSpec *pspec)
{
    EDestination **destinations;
    GList *list;

    switch (property_id) {
        case PROP_ACCOUNT:
            g_value_set_object (
                value,
                e_composer_header_table_get_account (
                E_COMPOSER_HEADER_TABLE (object)));
            return;

        case PROP_ACCOUNT_LIST:
            g_value_set_object (
                value,
                e_composer_header_table_get_account_list (
                E_COMPOSER_HEADER_TABLE (object)));
            return;

        case PROP_ACCOUNT_NAME:
            g_value_set_string (
                value,
                e_composer_header_table_get_account_name (
                E_COMPOSER_HEADER_TABLE (object)));
            return;

        case PROP_DESTINATIONS_BCC:
            destinations =
                e_composer_header_table_get_destinations_bcc (
                E_COMPOSER_HEADER_TABLE (object));
            g_value_set_destinations (value, destinations);
            e_destination_freev (destinations);
            return;

        case PROP_DESTINATIONS_CC:
            destinations =
                e_composer_header_table_get_destinations_cc (
                E_COMPOSER_HEADER_TABLE (object));
            g_value_set_destinations (value, destinations);
            e_destination_freev (destinations);
            return;

        case PROP_DESTINATIONS_TO:
            destinations =
                e_composer_header_table_get_destinations_to (
                E_COMPOSER_HEADER_TABLE (object));
            g_value_set_destinations (value, destinations);
            e_destination_freev (destinations);
            return;

        case PROP_POST_TO:
            list = e_composer_header_table_get_post_to (
                E_COMPOSER_HEADER_TABLE (object));
            g_value_set_string_list (value, list);
            g_list_foreach (list, (GFunc) g_free, NULL);
            g_list_free (list);
            return;

        case PROP_REPLY_TO:
            g_value_set_string (
                value,
                e_composer_header_table_get_reply_to (
                E_COMPOSER_HEADER_TABLE (object)));
            return;

        case PROP_SHELL:
            g_value_set_object (
                value,
                e_composer_header_table_get_shell (
                E_COMPOSER_HEADER_TABLE (object)));
            return;

        case PROP_SIGNATURE:
            g_value_set_object (
                value,
                e_composer_header_table_get_signature (
                E_COMPOSER_HEADER_TABLE (object)));
            return;

        case PROP_SIGNATURE_LIST:
            g_value_set_object (
                value,
                e_composer_header_table_get_signature_list (
                E_COMPOSER_HEADER_TABLE (object)));
            return;

        case PROP_SUBJECT:
            g_value_set_string (
                value,
                e_composer_header_table_get_subject (
                E_COMPOSER_HEADER_TABLE (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
composer_header_table_dispose (GObject *object)
{
    EComposerHeaderTablePrivate *priv;
    gint ii;

    priv = E_COMPOSER_HEADER_TABLE_GET_PRIVATE (object);

    for (ii = 0; ii < G_N_ELEMENTS (priv->headers); ii++) {
        if (priv->headers[ii] != NULL) {
            g_object_unref (priv->headers[ii]);
            priv->headers[ii] = NULL;
        }
    }

    if (priv->signature_combo_box != NULL) {
        g_object_unref (priv->signature_combo_box);
        priv->signature_combo_box = NULL;
    }

    if (priv->name_selector != NULL) {
        g_object_unref (priv->name_selector);
        priv->name_selector = NULL;
    }

    if (priv->shell != NULL) {
        g_object_unref (priv->shell);
        priv->shell = NULL;
    }

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

static void
composer_header_table_class_init (EComposerHeaderTableClass *class)
{
    GObjectClass *object_class;
    GParamSpec *element_spec;

    parent_class = g_type_class_peek_parent (class);
    g_type_class_add_private (class, sizeof (EComposerHeaderTablePrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->constructor = composer_header_table_constructor;
    object_class->set_property = composer_header_table_set_property;
    object_class->get_property = composer_header_table_get_property;
    object_class->dispose = composer_header_table_dispose;

    g_object_class_install_property (
        object_class,
        PROP_ACCOUNT,
        g_param_spec_object (
            "account",
            NULL,
            NULL,
            E_TYPE_ACCOUNT,
            G_PARAM_READWRITE));

    g_object_class_install_property (
        object_class,
        PROP_ACCOUNT_LIST,
        g_param_spec_object (
            "account-list",
            NULL,
            NULL,
            E_TYPE_ACCOUNT_LIST,
            G_PARAM_READWRITE));

    g_object_class_install_property (
        object_class,
        PROP_ACCOUNT_NAME,
        g_param_spec_string (
            "account-name",
            NULL,
            NULL,
            NULL,
            G_PARAM_READWRITE));

    /* floating reference */
    element_spec = g_param_spec_object (
        "value-array-element",
        NULL,
        NULL,
        E_TYPE_DESTINATION,
        G_PARAM_READWRITE);

    g_object_class_install_property (
        object_class,
        PROP_DESTINATIONS_BCC,
        g_param_spec_value_array (
            "destinations-bcc",
            NULL,
            NULL,
            element_spec,
            G_PARAM_READWRITE));

    g_object_class_install_property (
        object_class,
        PROP_DESTINATIONS_CC,
        g_param_spec_value_array (
            "destinations-cc",
            NULL,
            NULL,
            element_spec,
            G_PARAM_READWRITE));

    g_object_class_install_property (
        object_class,
        PROP_DESTINATIONS_TO,
        g_param_spec_value_array (
            "destinations-to",
            NULL,
            NULL,
            element_spec,
            G_PARAM_READWRITE));

    /* floating reference */
    element_spec = g_param_spec_string (
        "value-array-element",
        NULL,
        NULL,
        NULL,
        G_PARAM_READWRITE);

    g_object_class_install_property (
        object_class,
        PROP_POST_TO,
        g_param_spec_value_array (
            "post-to",
            NULL,
            NULL,
            element_spec,
            G_PARAM_READWRITE));

    g_object_class_install_property (
        object_class,
        PROP_REPLY_TO,
        g_param_spec_string (
            "reply-to",
            NULL,
            NULL,
            NULL,
            G_PARAM_READWRITE));

    g_object_class_install_property (
        object_class,
        PROP_SHELL,
        g_param_spec_object (
            "shell",
            NULL,
            NULL,
            E_TYPE_SHELL,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT_ONLY));

    g_object_class_install_property (
        object_class,
        PROP_SIGNATURE,
        g_param_spec_object (
            "signature",
            NULL,
            NULL,
            E_TYPE_SIGNATURE,
            G_PARAM_READWRITE));

    g_object_class_install_property (
        object_class,
        PROP_SIGNATURE_LIST,
        g_param_spec_object (
            "signature-list",
            NULL,
            NULL,
            E_TYPE_SIGNATURE_LIST,
            G_PARAM_READWRITE));

    g_object_class_install_property (
        object_class,
        PROP_SUBJECT,
        g_param_spec_string (
            "subject",
            NULL,
            NULL,
            NULL,
            G_PARAM_READWRITE));
}

static void
composer_header_table_init (EComposerHeaderTable *table)
{
    EComposerHeader *header;
    ENameSelector *name_selector;
    GtkWidget *widget;
    gint ii;

    table->priv = E_COMPOSER_HEADER_TABLE_GET_PRIVATE (table);

    name_selector = e_name_selector_new ();
    table->priv->name_selector = name_selector;

    header = e_composer_from_header_new (_("Fr_om:"));
    composer_header_table_bind_header ("account", "changed", header);
    composer_header_table_bind_header ("account-list", "refreshed", header);
    composer_header_table_bind_header ("account-name", "changed", header);
    g_signal_connect_swapped (
        header, "changed", G_CALLBACK (
        composer_header_table_from_changed_cb), table);
    table->priv->headers[E_COMPOSER_HEADER_FROM] = header;

    header = e_composer_text_header_new_label (_("_Reply-To:"));
    composer_header_table_bind_header ("reply-to", "changed", header);
    table->priv->headers[E_COMPOSER_HEADER_REPLY_TO] = header;

    header = e_composer_name_header_new (_("_To:"), name_selector);
    e_composer_header_set_input_tooltip (header, HEADER_TOOLTIP_TO);
    composer_header_table_bind_header ("destinations-to", "changed", header);
    table->priv->headers[E_COMPOSER_HEADER_TO] = header;

    header = e_composer_name_header_new (_("_Cc:"), name_selector);
    e_composer_header_set_input_tooltip (header, HEADER_TOOLTIP_CC);
    composer_header_table_bind_header ("destinations-cc", "changed", header);
    table->priv->headers[E_COMPOSER_HEADER_CC] = header;

    header = e_composer_name_header_new (_("_Bcc:"), name_selector);
    e_composer_header_set_input_tooltip (header, HEADER_TOOLTIP_BCC);
    composer_header_table_bind_header ("destinations-bcc", "changed", header);
    table->priv->headers[E_COMPOSER_HEADER_BCC] = header;

    header = e_composer_post_header_new (_("_Post To:"));
    composer_header_table_bind_header ("post-to", "changed", header);
    table->priv->headers[E_COMPOSER_HEADER_POST_TO] = header;

    header = e_composer_text_header_new_label (_("S_ubject:"));
    composer_header_table_bind_header ("subject", "changed", header);
    table->priv->headers[E_COMPOSER_HEADER_SUBJECT] = header;

    widget = e_signature_combo_box_new ();
    composer_header_table_bind_widget ("signature", "changed", widget);
    composer_header_table_bind_widget ("signature-list", "refreshed", widget);
    table->priv->signature_combo_box = g_object_ref_sink (widget);

    widget = gtk_label_new_with_mnemonic (_("Si_gnature:"));
    gtk_label_set_mnemonic_widget (
        GTK_LABEL (widget), table->priv->signature_combo_box);
    table->priv->signature_label = g_object_ref_sink (widget);

    /* XXX EComposerHeader ought to do this itself, but I need to
     *     make the title_widget and input_widget members private. */
    for (ii = 0; ii < E_COMPOSER_NUM_HEADERS; ii++) {
        header = table->priv->headers[ii];
        e_binding_new (
            header, "visible",
            header->title_widget, "visible");
        e_binding_new (
            header, "visible",
            header->input_widget, "visible");
    }
}

GType
e_composer_header_table_get_type (void)
{
    static GType type = 0;

    if (G_UNLIKELY (type == 0)) {
        static const GTypeInfo type_info = {
            sizeof (EComposerHeaderTableClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) composer_header_table_class_init,
            (GClassFinalizeFunc) NULL,
            NULL,  /* class_data */
            sizeof (EComposerHeaderTable),
            0,     /* n_preallocs */
            (GInstanceInitFunc) composer_header_table_init,
            NULL   /* value_table */
        };

        type = g_type_register_static (
            GTK_TYPE_TABLE, "EComposerHeaderTable", &type_info, 0);
    }

    return type;
}

GtkWidget *
e_composer_header_table_new (EShell *shell)
{
    g_return_val_if_fail (E_IS_SHELL (shell), NULL);

    return g_object_new (
        E_TYPE_COMPOSER_HEADER_TABLE,
        "shell", shell, NULL);
}

EShell *
e_composer_header_table_get_shell (EComposerHeaderTable *table)
{
    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);

    return table->priv->shell;
}

EComposerHeader *
e_composer_header_table_get_header (EComposerHeaderTable *table,
                                    EComposerHeaderType type)
{
    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);
    g_return_val_if_fail (type < E_COMPOSER_NUM_HEADERS, NULL);

    return table->priv->headers[type];
}

EAccount *
e_composer_header_table_get_account (EComposerHeaderTable *table)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerFromHeader *from_header;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);

    type = E_COMPOSER_HEADER_FROM;
    header = e_composer_header_table_get_header (table, type);
    from_header = E_COMPOSER_FROM_HEADER (header);

    return e_composer_from_header_get_active (from_header);
}

gboolean
e_composer_header_table_set_account (EComposerHeaderTable *table,
                                     EAccount *account)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerFromHeader *from_header;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), FALSE);

    type = E_COMPOSER_HEADER_FROM;
    header = e_composer_header_table_get_header (table, type);
    from_header = E_COMPOSER_FROM_HEADER (header);

    return e_composer_from_header_set_active (from_header, account);
}

EAccountList *
e_composer_header_table_get_account_list (EComposerHeaderTable *table)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerFromHeader *from_header;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);

    type = E_COMPOSER_HEADER_FROM;
    header = e_composer_header_table_get_header (table, type);
    from_header = E_COMPOSER_FROM_HEADER (header);

    return e_composer_from_header_get_account_list (from_header);
}

void
e_composer_header_table_set_account_list (EComposerHeaderTable *table,
                                          EAccountList *account_list)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerFromHeader *from_header;

    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (table));

    type = E_COMPOSER_HEADER_FROM;
    header = e_composer_header_table_get_header (table, type);
    from_header = E_COMPOSER_FROM_HEADER (header);

    e_composer_from_header_set_account_list (from_header, account_list);
}

const gchar *
e_composer_header_table_get_account_name (EComposerHeaderTable *table)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerFromHeader *from_header;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);

    type = E_COMPOSER_HEADER_FROM;
    header = e_composer_header_table_get_header (table, type);
    from_header = E_COMPOSER_FROM_HEADER (header);

    return e_composer_from_header_get_active_name (from_header);
}

gboolean
e_composer_header_table_set_account_name (EComposerHeaderTable *table,
                                          const gchar *account_name)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerFromHeader *from_header;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), FALSE);

    type = E_COMPOSER_HEADER_FROM;
    header = e_composer_header_table_get_header (table, type);
    from_header = E_COMPOSER_FROM_HEADER (header);

    return e_composer_from_header_set_active_name (from_header, account_name);
}

EDestination **
e_composer_header_table_get_destinations (EComposerHeaderTable *table)
{
    EDestination **destinations;
    EDestination **to, **cc, **bcc;
    gint total, n_to, n_cc, n_bcc;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);

    to = e_composer_header_table_get_destinations_to (table);
    for (n_to = 0; to != NULL && to[n_to] != NULL; n_to++);

    cc = e_composer_header_table_get_destinations_cc (table);
    for (n_cc = 0; cc != NULL && cc[n_cc] != NULL; n_cc++);

    bcc = e_composer_header_table_get_destinations_bcc (table);
    for (n_bcc = 0; bcc != NULL && bcc[n_bcc] != NULL; n_bcc++);

    total = n_to + n_cc + n_bcc;
    destinations = g_new0 (EDestination *, total + 1);

    while (n_bcc > 0 && total > 0)
        destinations[--total] = g_object_ref (bcc[--n_bcc]);

    while (n_cc > 0 && total > 0)
        destinations[--total] = g_object_ref (cc[--n_cc]);

    while (n_to > 0 && total > 0)
        destinations[--total] = g_object_ref (to[--n_to]);

    /* Counters should all be zero now. */
    g_assert (total == 0 && n_to == 0 && n_cc == 0 && n_bcc == 0);

    e_destination_freev (to);
    e_destination_freev (cc);
    e_destination_freev (bcc);

    return destinations;
}

EDestination **
e_composer_header_table_get_destinations_bcc (EComposerHeaderTable *table)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerNameHeader *name_header;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);

    type = E_COMPOSER_HEADER_BCC;
    header = e_composer_header_table_get_header (table, type);
    name_header = E_COMPOSER_NAME_HEADER (header);

    return e_composer_name_header_get_destinations (name_header);
}

void
e_composer_header_table_add_destinations_bcc (EComposerHeaderTable *table,
                                              EDestination **destinations)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerNameHeader *name_header;

    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (table));

    type = E_COMPOSER_HEADER_BCC;
    header = e_composer_header_table_get_header (table, type);
    name_header = E_COMPOSER_NAME_HEADER (header);

    e_composer_name_header_add_destinations (name_header, destinations);

    if (destinations != NULL && *destinations != NULL)
        e_composer_header_set_visible (header, TRUE);
}

void
e_composer_header_table_set_destinations_bcc (EComposerHeaderTable *table,
                                              EDestination **destinations)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerNameHeader *name_header;

    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (table));

    type = E_COMPOSER_HEADER_BCC;
    header = e_composer_header_table_get_header (table, type);
    name_header = E_COMPOSER_NAME_HEADER (header);

    e_composer_name_header_set_destinations (name_header, destinations);

    if (destinations != NULL && *destinations != NULL)
        e_composer_header_set_visible (header, TRUE);
}

EDestination **
e_composer_header_table_get_destinations_cc (EComposerHeaderTable *table)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerNameHeader *name_header;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);

    type = E_COMPOSER_HEADER_CC;
    header = e_composer_header_table_get_header (table, type);
    name_header = E_COMPOSER_NAME_HEADER (header);

    return e_composer_name_header_get_destinations (name_header);
}

void
e_composer_header_table_add_destinations_cc (EComposerHeaderTable *table,
                                             EDestination **destinations)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerNameHeader *name_header;

    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (table));

    type = E_COMPOSER_HEADER_CC;
    header = e_composer_header_table_get_header (table, type);
    name_header = E_COMPOSER_NAME_HEADER (header);

    e_composer_name_header_add_destinations (name_header, destinations);

    if (destinations != NULL && *destinations != NULL)
        e_composer_header_set_visible (header, TRUE);
}

void
e_composer_header_table_set_destinations_cc (EComposerHeaderTable *table,
                                             EDestination **destinations)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerNameHeader *name_header;

    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (table));

    type = E_COMPOSER_HEADER_CC;
    header = e_composer_header_table_get_header (table, type);
    name_header = E_COMPOSER_NAME_HEADER (header);

    e_composer_name_header_set_destinations (name_header, destinations);

    if (destinations != NULL && *destinations != NULL)
        e_composer_header_set_visible (header, TRUE);
}

EDestination **
e_composer_header_table_get_destinations_to (EComposerHeaderTable *table)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerNameHeader *name_header;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);

    type = E_COMPOSER_HEADER_TO;
    header = e_composer_header_table_get_header (table, type);
    name_header = E_COMPOSER_NAME_HEADER (header);

    return e_composer_name_header_get_destinations (name_header);
}

void
e_composer_header_table_add_destinations_to (EComposerHeaderTable *table,
                                             EDestination **destinations)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerNameHeader *name_header;

    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (table));

    type = E_COMPOSER_HEADER_TO;
    header = e_composer_header_table_get_header (table, type);
    name_header = E_COMPOSER_NAME_HEADER (header);

    e_composer_name_header_add_destinations (name_header, destinations);
}

void
e_composer_header_table_set_destinations_to (EComposerHeaderTable *table,
                                             EDestination **destinations)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerNameHeader *name_header;

    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (table));

    type = E_COMPOSER_HEADER_TO;
    header = e_composer_header_table_get_header (table, type);
    name_header = E_COMPOSER_NAME_HEADER (header);

    e_composer_name_header_set_destinations (name_header, destinations);
}

GList *
e_composer_header_table_get_post_to (EComposerHeaderTable *table)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerPostHeader *post_header;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);

    type = E_COMPOSER_HEADER_POST_TO;
    header = e_composer_header_table_get_header (table, type);
    post_header = E_COMPOSER_POST_HEADER (header);

    return e_composer_post_header_get_folders (post_header);
}

void
e_composer_header_table_set_post_to_base (EComposerHeaderTable *table,
                                          const gchar *base_url,
                                          const gchar *folders)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerPostHeader *post_header;

    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (table));

    type = E_COMPOSER_HEADER_POST_TO;
    header = e_composer_header_table_get_header (table, type);
    post_header = E_COMPOSER_POST_HEADER (header);

    e_composer_post_header_set_folders_base (post_header, base_url, folders);
}

void
e_composer_header_table_set_post_to_list (EComposerHeaderTable *table,
                                          GList *folders)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerPostHeader *post_header;

    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (table));

    type = E_COMPOSER_HEADER_POST_TO;
    header = e_composer_header_table_get_header (table, type);
    post_header = E_COMPOSER_POST_HEADER (header);

    e_composer_post_header_set_folders (post_header, folders);
}

const gchar *
e_composer_header_table_get_reply_to (EComposerHeaderTable *table)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerTextHeader *text_header;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);

    type = E_COMPOSER_HEADER_REPLY_TO;
    header = e_composer_header_table_get_header (table, type);
    text_header = E_COMPOSER_TEXT_HEADER (header);

    return e_composer_text_header_get_text (text_header);
}

void
e_composer_header_table_set_reply_to (EComposerHeaderTable *table,
                                      const gchar *reply_to)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerTextHeader *text_header;

    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (table));

    type = E_COMPOSER_HEADER_REPLY_TO;
    header = e_composer_header_table_get_header (table, type);
    text_header = E_COMPOSER_TEXT_HEADER (header);

    e_composer_text_header_set_text (text_header, reply_to);

    if (reply_to != NULL && *reply_to != '\0')
        e_composer_header_set_visible (header, TRUE);
}

ESignature *
e_composer_header_table_get_signature (EComposerHeaderTable *table)
{
    ESignatureComboBox *combo_box;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);

    combo_box = E_SIGNATURE_COMBO_BOX (table->priv->signature_combo_box);
    return e_signature_combo_box_get_active (combo_box);
}

gboolean
e_composer_header_table_set_signature (EComposerHeaderTable *table,
                                       ESignature *signature)
{
    ESignatureComboBox *combo_box;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), FALSE);

    combo_box = E_SIGNATURE_COMBO_BOX (table->priv->signature_combo_box);
    return e_signature_combo_box_set_active (combo_box, signature);
}

ESignatureList *
e_composer_header_table_get_signature_list (EComposerHeaderTable *table)
{
    ESignatureComboBox *combo_box;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);

    combo_box = E_SIGNATURE_COMBO_BOX (table->priv->signature_combo_box);
    return e_signature_combo_box_get_signature_list (combo_box);
}

void
e_composer_header_table_set_signature_list (EComposerHeaderTable *table,
                                            ESignatureList *signature_list)
{
    ESignatureComboBox *combo_box;

    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (table));

    combo_box = E_SIGNATURE_COMBO_BOX (table->priv->signature_combo_box);
    e_signature_combo_box_set_signature_list (combo_box, signature_list);
}

const gchar *
e_composer_header_table_get_subject (EComposerHeaderTable *table)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerTextHeader *text_header;

    g_return_val_if_fail (E_IS_COMPOSER_HEADER_TABLE (table), NULL);

    type = E_COMPOSER_HEADER_SUBJECT;
    header = e_composer_header_table_get_header (table, type);
    text_header = E_COMPOSER_TEXT_HEADER (header);

    return e_composer_text_header_get_text (text_header);
}

void
e_composer_header_table_set_subject (EComposerHeaderTable *table,
                                     const gchar *subject)
{
    EComposerHeader *header;
    EComposerHeaderType type;
    EComposerTextHeader *text_header;

    g_return_if_fail (E_IS_COMPOSER_HEADER_TABLE (table));

    type = E_COMPOSER_HEADER_SUBJECT;
    header = e_composer_header_table_get_header (table, type);
    text_header = E_COMPOSER_TEXT_HEADER (header);

    e_composer_text_header_set_text (text_header, subject);
}

void
e_composer_header_table_set_header_visible (EComposerHeaderTable *table,
                                            EComposerHeaderType type,
                                            gboolean visible)
{
    EComposerHeader *header;

    header = e_composer_header_table_get_header (table, type);
    e_composer_header_set_visible (header, visible);

    /* Signature widgets track the "From" header. */
    if (type == E_COMPOSER_HEADER_FROM) {
        if (visible) {
            gtk_widget_show (table->priv->signature_label);
            gtk_widget_show (table->priv->signature_combo_box);
        } else {
            gtk_widget_hide (table->priv->signature_label);
            gtk_widget_hide (table->priv->signature_combo_box);
        }
    }
}