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

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

#include "e-mail-reader.h"

#include <glib/gi18n.h>
#include <gdk/gdkkeysyms.h>

#ifdef HAVE_XFREE
#include <X11/XF86keysym.h>
#endif

#include "shell/e-shell-utils.h"

#include "libemail-engine/e-mail-enumtypes.h"
#include "libemail-engine/e-mail-utils.h"
#include "libemail-engine/mail-mt.h"
#include "libemail-engine/mail-ops.h"

#include "em-format/e-mail-formatter.h"
#include "em-format/e-mail-parser.h"
#include "em-format/e-mail-part-utils.h"

#include "e-mail-backend.h"
#include "e-mail-browser.h"
#include "e-mail-reader-utils.h"
#include "e-mail-ui-session.h"
#include "e-mail-view.h"
#include "em-composer-utils.h"
#include "em-event.h"
#include "em-folder-selector.h"
#include "em-folder-tree.h"
#include "em-utils.h"
#include "mail-autofilter.h"
#include "mail-vfolder-ui.h"
#include "message-list.h"

#define E_MAIL_READER_GET_PRIVATE(obj) \
    ((EMailReaderPrivate *) g_object_get_qdata \
    (G_OBJECT (obj), quark_private))

#define d(x)

typedef struct _EMailReaderClosure EMailReaderClosure;
typedef struct _EMailReaderPrivate EMailReaderPrivate;

struct _EMailReaderClosure {
    EMailReader *reader;
    EActivity *activity;
    gchar *message_uid;
};

struct _EMailReaderPrivate {

    EMailForwardStyle forward_style;
    EMailReplyStyle reply_style;

    /* This timer runs when the user selects a single message. */
    guint message_selected_timeout_id;

    /* This allows message retrieval to be cancelled if another
     * message is selected before the retrieval has completed. */
    GCancellable *retrieving_message;

    /* These flags work together to prevent message selection
     * restoration after a folder switch from automatically
     * marking the message as read.  We only want that to
     * happen when the -user- selects a message. */
    guint folder_was_just_selected    : 1;
    guint restoring_message_selection : 1;
    guint avoid_next_mark_as_seen     : 1;

    guint group_by_threads : 1;
};

enum {
    CHANGED,
    COMPOSER_CREATED,
    FOLDER_LOADED,
    MESSAGE_LOADED,
    MESSAGE_SEEN,
    SHOW_SEARCH_BAR,
    UPDATE_ACTIONS,
    SHOW_FOLDER,
    SHOW_PREVTAB,
    SHOW_NEXTTAB,
    CLOSE_TAB,
    LAST_SIGNAL
};

/* Remembers the previously selected folder when transferring messages. */
static gchar *default_xfer_messages_uri;

static GQuark quark_private;
static guint signals[LAST_SIGNAL];

G_DEFINE_INTERFACE (EMailReader, e_mail_reader, G_TYPE_INITIALLY_UNOWNED)

static void
mail_reader_set_display_formatter_for_message (EMailReader *reader,
                                               EMailDisplay *display,
                                               const gchar *message_uid,
                                               CamelMimeMessage *message,
                                               CamelFolder *folder);

static void
mail_reader_closure_free (EMailReaderClosure *closure)
{
    if (closure->reader != NULL)
        g_object_unref (closure->reader);

    if (closure->activity != NULL)
        g_object_unref (closure->activity);

    g_free (closure->message_uid);

    g_slice_free (EMailReaderClosure, closure);
}

static void
mail_reader_private_free (EMailReaderPrivate *priv)
{
    if (priv->message_selected_timeout_id > 0)
        g_source_remove (priv->message_selected_timeout_id);

    if (priv->retrieving_message != NULL) {
        g_cancellable_cancel (priv->retrieving_message);
        g_object_unref (priv->retrieving_message);
        priv->retrieving_message = 0;
    }

    g_slice_free (EMailReaderPrivate, priv);
}

static void
action_mail_add_sender_cb (GtkAction *action,
                           EMailReader *reader)
{
    EShell *shell;
    EMailBackend *backend;
    EMailSession *session;
    EShellBackend *shell_backend;
    CamelInternetAddress *cia;
    CamelMessageInfo *info = NULL;
    CamelFolder *folder;
    GPtrArray *uids;
    const gchar *address;
    const gchar *message_uid;

    folder = e_mail_reader_get_folder (reader);
    backend = e_mail_reader_get_backend (reader);
    session = e_mail_backend_get_session (backend);

    uids = e_mail_reader_get_selected_uids (reader);
    g_return_if_fail (uids != NULL && uids->len == 1);
    message_uid = g_ptr_array_index (uids, 0);

    info = camel_folder_get_message_info (folder, message_uid);
    if (info == NULL)
        goto exit;

    address = camel_message_info_from (info);
    if (address == NULL || *address == '\0')
        goto exit;

    /* XXX EBookShellBackend should be listening for this
     *     event.  Kind of kludgey, but works for now. */
    shell_backend = E_SHELL_BACKEND (backend);
    shell = e_shell_backend_get_shell (shell_backend);
    e_shell_event (shell, "contact-quick-add-email", (gpointer) address);

    /* Remove this address from the photo cache. */
    cia = camel_internet_address_new ();
    if (camel_address_decode (CAMEL_ADDRESS (cia), address) > 0) {
        EPhotoCache *photo_cache;
        const gchar *address_only = NULL;

        photo_cache = e_mail_ui_session_get_photo_cache (
            E_MAIL_UI_SESSION (session));
        camel_internet_address_get (cia, 0, NULL, &address_only);
        e_photo_cache_remove_photo (photo_cache, address_only);
    }
    g_object_unref (cia);

exit:
    if (info != NULL)
        camel_folder_free_message_info (folder, info);
    em_utils_uids_free (uids);
}

static void
action_add_to_address_book_cb (GtkAction *action,
                               EMailReader *reader)
{
    EShell *shell;
    EMailBackend *backend;
    EMailDisplay *display;
    EMailSession *session;
    EShellBackend *shell_backend;
    CamelInternetAddress *cia;
    EPhotoCache *photo_cache;
    EWebView *web_view;
    CamelURL *curl;
    const gchar *uri;
    const gchar *address_only = NULL;
    gchar *email;

    /* This action is defined in EMailDisplay. */

    backend = e_mail_reader_get_backend (reader);
    session = e_mail_backend_get_session (backend);

    display = e_mail_reader_get_mail_display (reader);
    if (display == NULL)
        return;

    web_view = E_WEB_VIEW (display);
    uri = e_web_view_get_selected_uri (web_view);
    g_return_if_fail (uri != NULL);

    curl = camel_url_new (uri, NULL);
    g_return_if_fail (curl != NULL);

    if (curl->path == NULL || *curl->path == '\0')
        goto exit;

    cia = camel_internet_address_new ();
    if (camel_address_decode (CAMEL_ADDRESS (cia), curl->path) < 0) {
        g_object_unref (cia);
        goto exit;
    }

    /* XXX EBookShellBackend should be listening for this
     *     event.  Kind of kludgey, but works for now. */
    shell_backend = E_SHELL_BACKEND (backend);
    shell = e_shell_backend_get_shell (shell_backend);
    email = camel_address_format (CAMEL_ADDRESS (cia));
    e_shell_event (shell, "contact-quick-add-email", email);
    g_free (email);

    /* Remove this address from the photo cache. */
    photo_cache = e_mail_ui_session_get_photo_cache (
        E_MAIL_UI_SESSION (session));
    camel_internet_address_get (cia, 0, NULL, &address_only);
    e_photo_cache_remove_photo (photo_cache, address_only);

    g_object_unref (cia);

exit:
    camel_url_free (curl);
}

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

    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
action_mail_image_save_cb (GtkAction *action,
                           EMailReader *reader)
{
    EShell *shell;
    EMailBackend *backend;
    EMailDisplay *display;
    EWebView *web_view;
    EMailPartList *parts;
    const gchar *image_src;
    CamelMimePart *part;
    CamelMimeMessage *message;
    EAttachment *attachment;
    GFile *file;

    backend = e_mail_reader_get_backend (reader);
    shell = e_shell_backend_get_shell (E_SHELL_BACKEND (backend));

    display = e_mail_reader_get_mail_display (reader);
    if (display == NULL)
        return;

    web_view = E_WEB_VIEW (display);
    image_src = e_web_view_get_cursor_image_src (web_view);
    if (image_src == NULL)
        return;

    parts = e_mail_display_get_parts_list (display);
    g_return_if_fail (parts != NULL);

    message = e_mail_part_list_get_message (parts);
    g_return_if_fail (message != NULL);

    if (g_str_has_prefix (image_src, "cid:")) {
        part = camel_mime_message_get_part_by_content_id (
            message, image_src + 4);
        g_return_if_fail (part != NULL);

        g_object_ref (part);
    } else {
        CamelStream *image_stream;
        CamelDataWrapper *dw;
        CamelDataCache *cache;
        const gchar *filename;
        const gchar *user_cache_dir;

        /* Open cache and find the file there */
        user_cache_dir = e_get_user_cache_dir ();
        cache = camel_data_cache_new (user_cache_dir, NULL);
        image_stream = camel_data_cache_get (
            cache, "http", image_src, NULL);
        if (image_stream == NULL) {
            g_object_unref (cache);
            return;
        }

        filename = strrchr (image_src, '/');
        if (filename != NULL) {
            if (strchr (filename, '?') == NULL)
                filename++;
            else
                filename = NULL;
        }

        part = camel_mime_part_new ();
        if (filename != NULL)
            camel_mime_part_set_filename (part, filename);

        dw = camel_data_wrapper_new ();
        camel_data_wrapper_set_mime_type (
            dw, "application/octet-stream");
        camel_data_wrapper_construct_from_stream_sync (
            dw, image_stream, NULL, NULL);
        camel_medium_set_content (CAMEL_MEDIUM (part), dw);
        g_object_unref (dw);

        camel_mime_part_set_encoding (
            part, CAMEL_TRANSFER_ENCODING_BASE64);

        g_object_unref (image_stream);
        g_object_unref (cache);
    }

    file = e_shell_run_save_dialog (
        shell, _("Save Image"),
        camel_mime_part_get_filename (part),
        NULL, NULL, NULL);
    if (file == NULL) {
        g_object_unref (part);
        return;
    }

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

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

    g_object_unref (part);
}

static void
action_mail_charset_cb (GtkRadioAction *action,
                        GtkRadioAction *current,
                        EMailReader *reader)
{
    EMailDisplay *display;
    EMailFormatter *formatter;

    if (action != current)
        return;

    display = e_mail_reader_get_mail_display (reader);
    formatter = e_mail_display_get_formatter (display);

    if (formatter != NULL) {
        const gchar *charset;

        /* Charset for "Default" action will be NULL. */
        charset = g_object_get_data (G_OBJECT (action), "charset");
        e_mail_formatter_set_charset (formatter, charset);
    }
}

static void
action_mail_check_for_junk_cb (GtkAction *action,
                               EMailReader *reader)
{
    EMailBackend *backend;
    EMailSession *session;
    CamelFolder *folder;
    GPtrArray *uids;

    folder = e_mail_reader_get_folder (reader);
    backend = e_mail_reader_get_backend (reader);
    uids = e_mail_reader_get_selected_uids (reader);

    session = e_mail_backend_get_session (backend);

    mail_filter_folder (
        session, folder, uids,
        E_FILTER_SOURCE_JUNKTEST, FALSE);
}

static void
action_mail_copy_cb (GtkAction *action,
                     EMailReader *reader)
{
    CamelFolder *folder;
    EMailBackend *backend;
    EMailSession *session;
    EMFolderSelector *selector;
    EMFolderTree *folder_tree;
    EMFolderTreeModel *model;
    GtkWidget *dialog;
    GtkWindow *window;
    GPtrArray *uids;
    const gchar *uri;

    backend = e_mail_reader_get_backend (reader);
    session = e_mail_backend_get_session (backend);

    folder = e_mail_reader_get_folder (reader);
    window = e_mail_reader_get_window (reader);
    uids = e_mail_reader_get_selected_uids (reader);

    model = em_folder_tree_model_get_default ();

    dialog = em_folder_selector_new (
        window, model,
        EM_FOLDER_SELECTOR_CAN_CREATE,
        _("Copy to Folder"), NULL, _("C_opy"));

    selector = EM_FOLDER_SELECTOR (dialog);
    folder_tree = em_folder_selector_get_folder_tree (selector);

    em_folder_tree_set_excluded (
        folder_tree,
        EMFT_EXCLUDE_NOSELECT |
        EMFT_EXCLUDE_VIRTUAL |
        EMFT_EXCLUDE_VTRASH);

    if (default_xfer_messages_uri != NULL)
        em_folder_tree_set_selected (
            folder_tree, default_xfer_messages_uri, FALSE);

    if (gtk_dialog_run (GTK_DIALOG (dialog)) != GTK_RESPONSE_OK)
        goto exit;

    uri = em_folder_selector_get_selected_uri (selector);

    g_free (default_xfer_messages_uri);
    default_xfer_messages_uri = g_strdup (uri);

    if (uri != NULL) {
        mail_transfer_messages (
            session, folder, uids,
            FALSE, uri, 0, NULL, NULL);
        uids = NULL;
    }

exit:
    if (uids != NULL)
        em_utils_uids_free (uids);

    gtk_widget_destroy (dialog);
}

static void
action_mail_delete_cb (GtkAction *action,
                       EMailReader *reader)
{
    guint32 mask = CAMEL_MESSAGE_SEEN | CAMEL_MESSAGE_DELETED;
    guint32 set  = CAMEL_MESSAGE_SEEN | CAMEL_MESSAGE_DELETED;

    if (!e_mail_reader_confirm_delete (reader))
        return;

    /* FIXME Verify all selected messages are deletable.
     *       But handle it by disabling this action. */

    if (e_mail_reader_mark_selected (reader, mask, set) == 1)
        e_mail_reader_select_next_message (reader, FALSE);
}

static void
action_mail_filter_on_mailing_list_cb (GtkAction *action,
                                       EMailReader *reader)
{
    e_mail_reader_create_filter_from_selected (reader, AUTO_MLIST);
}

static void
action_mail_filter_on_recipients_cb (GtkAction *action,
                                     EMailReader *reader)
{
    e_mail_reader_create_filter_from_selected (reader, AUTO_TO);
}

static void
action_mail_filter_on_sender_cb (GtkAction *action,
                                 EMailReader *reader)
{
    e_mail_reader_create_filter_from_selected (reader, AUTO_FROM);
}

static void
action_mail_filter_on_subject_cb (GtkAction *action,
                                  EMailReader *reader)
{
    e_mail_reader_create_filter_from_selected (reader, AUTO_SUBJECT);
}

static void
action_mail_filters_apply_cb (GtkAction *action,
                              EMailReader *reader)
{
    EMailBackend *backend;
    EMailSession *session;
    CamelFolder *folder;
    GPtrArray *uids;

    folder = e_mail_reader_get_folder (reader);
    backend = e_mail_reader_get_backend (reader);
    uids = e_mail_reader_get_selected_uids (reader);

    session = e_mail_backend_get_session (backend);

    mail_filter_folder (
        session, folder, uids,
        E_FILTER_SOURCE_DEMAND, FALSE);
}

static void
action_mail_remove_attachments_cb (GtkAction *action,
                                   EMailReader *reader)
{
    e_mail_reader_remove_attachments (reader);
}

static void
action_mail_remove_duplicates_cb (GtkAction *action,
                                  EMailReader *reader)
{
    e_mail_reader_remove_duplicates (reader);
}

static void
action_mail_find_cb (GtkAction *action,
                     EMailReader *reader)
{
    e_mail_reader_show_search_bar (reader);
}

static void
action_mail_flag_clear_cb (GtkAction *action,
                           EMailReader *reader)
{
    EMailDisplay *display;
    CamelFolder *folder;
    GtkWindow *window;
    GPtrArray *uids;

    folder = e_mail_reader_get_folder (reader);
    display = e_mail_reader_get_mail_display (reader);
    uids = e_mail_reader_get_selected_uids (reader);
    window = e_mail_reader_get_window (reader);

    em_utils_flag_for_followup_clear (window, folder, uids);

    e_mail_display_reload (display);
}

static void
action_mail_flag_completed_cb (GtkAction *action,
                               EMailReader *reader)
{
    EMailDisplay *display;
    CamelFolder *folder;
    GtkWindow *window;
    GPtrArray *uids;

    folder = e_mail_reader_get_folder (reader);
    display = e_mail_reader_get_mail_display (reader);
    uids = e_mail_reader_get_selected_uids (reader);
    window = e_mail_reader_get_window (reader);

    em_utils_flag_for_followup_completed (window, folder, uids);

    e_mail_display_reload (display);
}

static void
action_mail_flag_for_followup_cb (GtkAction *action,
                                  EMailReader *reader)
{
    CamelFolder *folder;
    GPtrArray *uids;

    folder = e_mail_reader_get_folder (reader);
    uids = e_mail_reader_get_selected_uids (reader);

    em_utils_flag_for_followup (reader, folder, uids);
}

static void
action_mail_forward_cb (GtkAction *action,
                        EMailReader *reader)
{
    CamelFolder *folder;
    GtkWindow *window;
    GPtrArray *uids;

    folder = e_mail_reader_get_folder (reader);
    window = e_mail_reader_get_window (reader);
    uids = e_mail_reader_get_selected_uids (reader);
    g_return_if_fail (uids != NULL);

    /* XXX Either e_mail_reader_get_selected_uids()
     *     or MessageList should do this itself. */
    g_ptr_array_set_free_func (uids, (GDestroyNotify) g_free);

    if (em_utils_ask_open_many (window, uids->len))
        em_utils_forward_messages (
            reader, folder, uids,
            e_mail_reader_get_forward_style (reader));

    g_ptr_array_unref (uids);
}

static void
action_mail_forward_attached_cb (GtkAction *action,
                                 EMailReader *reader)
{
    CamelFolder *folder;
    GtkWindow *window;
    GPtrArray *uids;

    folder = e_mail_reader_get_folder (reader);
    window = e_mail_reader_get_window (reader);
    uids = e_mail_reader_get_selected_uids (reader);
    g_return_if_fail (uids != NULL);

    /* XXX Either e_mail_reader_get_selected_uids()
     *     or MessageList should do this itself. */
    g_ptr_array_set_free_func (uids, (GDestroyNotify) g_free);

    if (em_utils_ask_open_many (window, uids->len))
        em_utils_forward_messages (
            reader, folder, uids,
            E_MAIL_FORWARD_STYLE_ATTACHED);

    g_ptr_array_unref (uids);
}

static void
action_mail_forward_inline_cb (GtkAction *action,
                               EMailReader *reader)
{
    CamelFolder *folder;
    GtkWindow *window;
    GPtrArray *uids;

    folder = e_mail_reader_get_folder (reader);
    window = e_mail_reader_get_window (reader);
    uids = e_mail_reader_get_selected_uids (reader);
    g_return_if_fail (uids != NULL);

    /* XXX Either e_mail_reader_get_selected_uids()
     *     or MessageList should do this itself. */
    g_ptr_array_set_free_func (uids, (GDestroyNotify) g_free);

    if (em_utils_ask_open_many (window, uids->len))
        em_utils_forward_messages (
            reader, folder, uids,
            E_MAIL_FORWARD_STYLE_INLINE);

    g_ptr_array_unref (uids);
}

static void
action_mail_forward_quoted_cb (GtkAction *action,
                               EMailReader *reader)
{
    CamelFolder *folder;
    GtkWindow *window;
    GPtrArray *uids;

    folder = e_mail_reader_get_folder (reader);
    window = e_mail_reader_get_window (reader);
    uids = e_mail_reader_get_selected_uids (reader);
    g_return_if_fail (uids != NULL);

    /* XXX Either e_mail_reader_get_selected_uids()
     *     or MessageList should do this itself. */
    g_ptr_array_set_free_func (uids, (GDestroyNotify) g_free);

    if (em_utils_ask_open_many (window, uids->len))
        em_utils_forward_messages (
            reader, folder, uids,
            E_MAIL_FORWARD_STYLE_QUOTED);

    g_ptr_array_unref (uids);
}

static void
action_mail_load_images_cb (GtkAction *action,
                            EMailReader *reader)
{
    EMailDisplay *display;

    display = e_mail_reader_get_mail_display (reader);

    e_mail_display_load_images (display);
}

static void
action_mail_mark_important_cb (GtkAction *action,
                               EMailReader *reader)
{
    guint32 mask = CAMEL_MESSAGE_FLAGGED | CAMEL_MESSAGE_DELETED;
    guint32 set  = CAMEL_MESSAGE_FLAGGED;

    e_mail_reader_mark_selected (reader, mask, set);
}

static gboolean
is_junk_folder_selected (EMailReader *reader)
{
    CamelFolder *folder;

    folder = e_mail_reader_get_folder (reader);

    if (folder == NULL)
        return FALSE;

    return (folder->folder_flags & CAMEL_FOLDER_IS_JUNK) != 0;
}

static void
action_mail_mark_junk_cb (GtkAction *action,
                          EMailReader *reader)
{
    guint32 mask =
        CAMEL_MESSAGE_SEEN |
        CAMEL_MESSAGE_JUNK |
        CAMEL_MESSAGE_NOTJUNK |
        CAMEL_MESSAGE_JUNK_LEARN;
    guint32 set =
        CAMEL_MESSAGE_SEEN |
        CAMEL_MESSAGE_JUNK |
        CAMEL_MESSAGE_JUNK_LEARN;

    if (e_mail_reader_mark_selected (reader, mask, set) == 1 &&
        !is_junk_folder_selected (reader))
        e_mail_reader_select_next_message (reader, TRUE);
}

static void
action_mail_mark_notjunk_cb (GtkAction *action,
                             EMailReader *reader)
{
    guint32 mask =
        CAMEL_MESSAGE_JUNK |
        CAMEL_MESSAGE_NOTJUNK |
        CAMEL_MESSAGE_JUNK_LEARN;
    guint32 set  =
        CAMEL_MESSAGE_NOTJUNK |
        CAMEL_MESSAGE_JUNK_LEARN;

    if (e_mail_reader_mark_selected (reader, mask, set) == 1 &&
        is_junk_folder_selected (reader))
        e_mail_reader_select_next_message (reader, TRUE);
}

static void
action_mail_mark_read_cb (GtkAction *action,
                          EMailReader *reader)
{
    guint32 mask = CAMEL_MESSAGE_SEEN;
    guint32 set  = CAMEL_MESSAGE_SEEN;

    e_mail_reader_mark_selected (reader, mask, set);
}

static void
action_mail_mark_unimportant_cb (GtkAction *action,
                                 EMailReader *reader)
{
    guint32 mask = CAMEL_MESSAGE_FLAGGED;
    guint32 set  = 0;

    e_mail_reader_mark_selected (reader, mask, set);
}

static void
action_mail_mark_unread_cb (GtkAction *action,
                            EMailReader *reader)
{
    GtkWidget *message_list;
    EMFolderTreeModel *model;
    CamelFolder *folder;
    guint32 mask = CAMEL_MESSAGE_SEEN | CAMEL_MESSAGE_DELETED;
    guint32 set  = 0;
    guint n_marked;

    message_list = e_mail_reader_get_message_list (reader);

    n_marked = e_mail_reader_mark_selected (reader, mask, set);

    if (MESSAGE_LIST (message_list)->seen_id != 0) {
        g_source_remove (MESSAGE_LIST (message_list)->seen_id);
        MESSAGE_LIST (message_list)->seen_id = 0;
    }

    /* Notify the tree model that the user has marked messages as
     * unread so it doesn't mistake the event as new mail arriving. */
    model = em_folder_tree_model_get_default ();
    folder = e_mail_reader_get_folder (reader);
    em_folder_tree_model_user_marked_unread (model, folder, n_marked);
}

static void
action_mail_message_edit_cb (GtkAction *action,
                             EMailReader *reader)
{
    EShell *shell;
    EMailBackend *backend;
    ESourceRegistry *registry;
    CamelFolder *folder;
    GPtrArray *uids;
    gboolean replace;

    folder = e_mail_reader_get_folder (reader);
    uids = e_mail_reader_get_selected_uids (reader);
    g_return_if_fail (uids != NULL);

    backend = e_mail_reader_get_backend (reader);
    shell = e_shell_backend_get_shell (E_SHELL_BACKEND (backend));
    registry = e_shell_get_registry (shell);

    /* XXX Either e_mail_reader_get_selected_uids()
     *     or MessageList should do this itself. */
    g_ptr_array_set_free_func (uids, (GDestroyNotify) g_free);

    replace = em_utils_folder_is_drafts (registry, folder);
    e_mail_reader_edit_messages (reader, folder, uids, replace, replace);

    g_ptr_array_unref (uids);
}

static void
action_mail_message_new_cb (GtkAction *action,
                            EMailReader *reader)
{
    EShell *shell;
    EMailBackend *backend;
    EShellBackend *shell_backend;
    CamelFolder *folder;
    EMsgComposer *composer;

    folder = e_mail_reader_get_folder (reader);
    backend = e_mail_reader_get_backend (reader);

    shell_backend = E_SHELL_BACKEND (backend);
    shell = e_shell_backend_get_shell (shell_backend);

    composer = em_utils_compose_new_message (shell, folder);

    e_mail_reader_composer_created (reader, composer, NULL);
}

static void
action_mail_message_open_cb (GtkAction *action,
                             EMailReader *reader)
{
    e_mail_reader_open_selected_mail (reader);
}

static void
action_mail_move_cb (GtkAction *action,
                     EMailReader *reader)
{
    CamelFolder *folder;
    EMailBackend *backend;
    EMailSession *session;
    EMFolderSelector *selector;
    EMFolderTree *folder_tree;
    EMFolderTreeModel *model;
    GtkWidget *dialog;
    GtkWindow *window;
    GPtrArray *uids;
    const gchar *uri;

    backend = e_mail_reader_get_backend (reader);
    session = e_mail_backend_get_session (backend);

    folder = e_mail_reader_get_folder (reader);
    uids = e_mail_reader_get_selected_uids (reader);
    window = e_mail_reader_get_window (reader);

    model = em_folder_tree_model_get_default ();

    dialog = em_folder_selector_new (
        window, model,
        EM_FOLDER_SELECTOR_CAN_CREATE,
        _("Move to Folder"), NULL, _("_Move"));

    selector = EM_FOLDER_SELECTOR (dialog);
    folder_tree = em_folder_selector_get_folder_tree (selector);

    em_folder_tree_set_excluded (
        folder_tree,
        EMFT_EXCLUDE_NOSELECT |
        EMFT_EXCLUDE_VIRTUAL |
        EMFT_EXCLUDE_VTRASH);

    if (default_xfer_messages_uri != NULL)
        em_folder_tree_set_selected (
            folder_tree, default_xfer_messages_uri, FALSE);

    if (gtk_dialog_run (GTK_DIALOG (dialog)) != GTK_RESPONSE_OK)
        goto exit;

    uri = em_folder_selector_get_selected_uri (selector);

    g_free (default_xfer_messages_uri);
    default_xfer_messages_uri = g_strdup (uri);

    if (uri != NULL) {
        mail_transfer_messages (
            session, folder, uids,
            TRUE, uri, 0, NULL, NULL);
        uids = NULL;
    }

exit:
    if (uids != NULL)
        em_utils_uids_free (uids);

    gtk_widget_destroy (dialog);
}

static void
action_mail_folder_cb (GtkAction *action,
                       EMailReader *reader)
{
    g_signal_emit (reader, signals[SHOW_FOLDER], 0);
}

static void
action_mail_nexttab_cb (GtkAction *action,
                     EMailReader *reader)
{
    g_signal_emit (reader, signals[SHOW_NEXTTAB], 0);
}

static void
action_mail_prevtab_cb (GtkAction *action,
                     EMailReader *reader)
{
    g_signal_emit (reader, signals[SHOW_PREVTAB], 0);
}

static void
action_mail_closetab_cb (GtkAction *action,
                     EMailReader *reader)
{
    g_signal_emit (reader, signals[CLOSE_TAB], 0);
}

static void
action_mail_next_cb (GtkAction *action,
                     EMailReader *reader)
{
    GtkWidget *message_list;
    MessageListSelectDirection direction;
    guint32 flags, mask;

    direction = MESSAGE_LIST_SELECT_NEXT;
    flags = 0;
    mask  = 0;

    message_list = e_mail_reader_get_message_list (reader);

    message_list_select (
        MESSAGE_LIST (message_list), direction, flags, mask);
}

static void
action_mail_next_important_cb (GtkAction *action,
                               EMailReader *reader)
{
    GtkWidget *message_list;
    MessageListSelectDirection direction;
    guint32 flags, mask;

    direction = MESSAGE_LIST_SELECT_NEXT | MESSAGE_LIST_SELECT_WRAP;
    flags = CAMEL_MESSAGE_FLAGGED;
    mask  = CAMEL_MESSAGE_FLAGGED;

    message_list = e_mail_reader_get_message_list (reader);

    message_list_select (
        MESSAGE_LIST (message_list), direction, flags, mask);
}

static void
action_mail_next_thread_cb (GtkAction *action,
                            EMailReader *reader)
{
    GtkWidget *message_list;

    message_list = e_mail_reader_get_message_list (reader);

    message_list_select_next_thread (MESSAGE_LIST (message_list));
}

static void
action_mail_next_unread_cb (GtkAction *action,
                            EMailReader *reader)
{
    GtkWidget *message_list;
    MessageListSelectDirection direction;
    guint32 flags, mask;

    direction = MESSAGE_LIST_SELECT_NEXT | MESSAGE_LIST_SELECT_WRAP;
    flags = 0;
    mask  = CAMEL_MESSAGE_SEEN;

    message_list = e_mail_reader_get_message_list (reader);

    message_list_select (
        MESSAGE_LIST (message_list), direction, flags, mask);
}

static void
action_mail_previous_cb (GtkAction *action,
                         EMailReader *reader)
{
    GtkWidget *message_list;
    MessageListSelectDirection direction;
    guint32 flags, mask;

    direction = MESSAGE_LIST_SELECT_PREVIOUS;
    flags = 0;
    mask  = 0;

    message_list = e_mail_reader_get_message_list (reader);

    message_list_select (
        MESSAGE_LIST (message_list), direction, flags, mask);
}

static void
action_mail_previous_important_cb (GtkAction *action,
                                   EMailReader *reader)
{
    GtkWidget *message_list;
    MessageListSelectDirection direction;
    guint32 flags, mask;

    direction = MESSAGE_LIST_SELECT_PREVIOUS | MESSAGE_LIST_SELECT_WRAP;
    flags = CAMEL_MESSAGE_FLAGGED;
    mask  = CAMEL_MESSAGE_FLAGGED;

    message_list = e_mail_reader_get_message_list (reader);

    message_list_select (
        MESSAGE_LIST (message_list), direction, flags, mask);
}

static void
action_mail_previous_thread_cb (GtkAction *action,
                                EMailReader *reader)
{
    GtkWidget *message_list;

    message_list = e_mail_reader_get_message_list (reader);

    message_list_select_prev_thread (MESSAGE_LIST (message_list));
}

static void
action_mail_previous_unread_cb (GtkAction *action,
                                EMailReader *reader)
{
    GtkWidget *message_list;
    MessageListSelectDirection direction;
    guint32 flags, mask;

    direction = MESSAGE_LIST_SELECT_PREVIOUS | MESSAGE_LIST_SELECT_WRAP;
    flags = 0;
    mask  = CAMEL_MESSAGE_SEEN;

    message_list = e_mail_reader_get_message_list (reader);

    message_list_select (
        MESSAGE_LIST (message_list), direction, flags, mask);
}

static void
action_mail_print_cb (GtkAction *action,
                      EMailReader *reader)
{
    GtkPrintOperationAction print_action;

    print_action = GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG;
    e_mail_reader_print (reader, print_action);
}

static void
action_mail_print_preview_cb (GtkAction *action,
                              EMailReader *reader)
{
    GtkPrintOperationAction print_action;

    print_action = GTK_PRINT_OPERATION_ACTION_PREVIEW;
    e_mail_reader_print (reader, print_action);
}

static void
mail_reader_redirect_cb (CamelFolder *folder,
                         GAsyncResult *result,
                         EMailReaderClosure *closure)
{
    EShell *shell;
    EMailBackend *backend;
    EAlertSink *alert_sink;
    CamelMimeMessage *message;
    EMsgComposer *composer;
    GError *error = NULL;

    alert_sink = e_activity_get_alert_sink (closure->activity);

    message = camel_folder_get_message_finish (folder, result, &error);

    if (e_activity_handle_cancellation (closure->activity, error)) {
        g_warn_if_fail (message == NULL);
        mail_reader_closure_free (closure);
        g_error_free (error);
        return;

    } else if (error != NULL) {
        g_warn_if_fail (message == NULL);
        e_alert_submit (
            alert_sink, "mail:no-retrieve-message",
            error->message, NULL);
        mail_reader_closure_free (closure);
        g_error_free (error);
        return;
    }

    g_return_if_fail (CAMEL_IS_MIME_MESSAGE (message));

    backend = e_mail_reader_get_backend (closure->reader);
    shell = e_shell_backend_get_shell (E_SHELL_BACKEND (backend));

    composer = em_utils_redirect_message (shell, message);

    e_mail_reader_composer_created (closure->reader, composer, message);

    g_object_unref (message);

    mail_reader_closure_free (closure);
}

static void
action_mail_redirect_cb (GtkAction *action,
                         EMailReader *reader)
{
    EActivity *activity;
    GCancellable *cancellable;
    EMailReaderClosure *closure;
    GtkWidget *message_list;
    CamelFolder *folder;
    const gchar *message_uid;

    folder = e_mail_reader_get_folder (reader);
    message_list = e_mail_reader_get_message_list (reader);

    message_uid = MESSAGE_LIST (message_list)->cursor_uid;
    g_return_if_fail (message_uid != NULL);

    /* Open the message asynchronously. */

    activity = e_mail_reader_new_activity (reader);
    cancellable = e_activity_get_cancellable (activity);

    closure = g_slice_new0 (EMailReaderClosure);
    closure->activity = activity;
    closure->reader = g_object_ref (reader);

    camel_folder_get_message (
        folder, message_uid, G_PRIORITY_DEFAULT,
        cancellable, (GAsyncReadyCallback)
        mail_reader_redirect_cb, closure);
}

static void
action_mail_reply_all_check (CamelFolder *folder,
                             GAsyncResult *result,
                             EMailReaderClosure *closure)
{
    EAlertSink *alert_sink;
    CamelMimeMessage *message;
    CamelInternetAddress *to, *cc;
    gint recip_count = 0;
    EMailReplyType type = E_MAIL_REPLY_TO_ALL;
    GError *error = NULL;

    alert_sink = e_activity_get_alert_sink (closure->activity);

    message = camel_folder_get_message_finish (folder, result, &error);

    if (e_activity_handle_cancellation (closure->activity, error)) {
        g_warn_if_fail (message == NULL);
        mail_reader_closure_free (closure);
        g_error_free (error);
        return;

    } else if (error != NULL) {
        g_warn_if_fail (message == NULL);
        e_alert_submit (
            alert_sink, "mail:no-retrieve-message",
            error->message, NULL);
        mail_reader_closure_free (closure);
        g_error_free (error);
        return;
    }

    g_return_if_fail (CAMEL_IS_MIME_MESSAGE (message));

    to = camel_mime_message_get_recipients (
        message, CAMEL_RECIPIENT_TYPE_TO);
    cc = camel_mime_message_get_recipients (
        message, CAMEL_RECIPIENT_TYPE_CC);

    recip_count = camel_address_length (CAMEL_ADDRESS (to));
    recip_count += camel_address_length (CAMEL_ADDRESS (cc));

    if (recip_count >= 15) {
        GtkWidget *dialog;
        GtkWidget *check;
        GtkWidget *container;
        gint response;

        dialog = e_alert_dialog_new_for_args (
            e_mail_reader_get_window (closure->reader),
            "mail:ask-reply-many-recips", NULL);

        container = e_alert_dialog_get_content_area (
            E_ALERT_DIALOG (dialog));

        /* Check buttons */
        check = gtk_check_button_new_with_mnemonic (
            _("_Do not ask me again."));
        gtk_box_pack_start (
            GTK_BOX (container), check, FALSE, FALSE, 0);
        gtk_widget_show (check);

        response = gtk_dialog_run (GTK_DIALOG (dialog));

        if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (check))) {
            GSettings *settings;
            const gchar *key;

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

            key = "prompt-on-reply-many-recips";
            g_settings_set_boolean (settings, key, FALSE);

            g_object_unref (settings);
        }

        gtk_widget_destroy (dialog);

        switch (response) {
            case GTK_RESPONSE_NO:
                type = E_MAIL_REPLY_TO_SENDER;
                break;
            case GTK_RESPONSE_CANCEL:
            case GTK_RESPONSE_DELETE_EVENT:
                goto exit;
            default:
                break;
        }
    }

    e_mail_reader_reply_to_message (closure->reader, message, type);

exit:
    g_object_unref (message);

    mail_reader_closure_free (closure);
}

static void
action_mail_reply_all_cb (GtkAction *action,
                          EMailReader *reader)
{
    GSettings *settings;
    const gchar *key;
    guint32 state;
    gboolean ask;

    state = e_mail_reader_check_state (reader);

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

    key = "prompt-on-reply-many-recips";
    ask = g_settings_get_boolean (settings, key);

    g_object_unref (settings);

    if (ask && !(state & E_MAIL_READER_SELECTION_IS_MAILING_LIST)) {
        EActivity *activity;
        GCancellable *cancellable;
        EMailReaderClosure *closure;
        CamelFolder *folder;
        GtkWidget *message_list;
        const gchar *message_uid;

        folder = e_mail_reader_get_folder (reader);
        g_return_if_fail (CAMEL_IS_FOLDER (folder));

        message_list = e_mail_reader_get_message_list (reader);
        message_uid = MESSAGE_LIST (message_list)->cursor_uid;
        g_return_if_fail (message_uid != NULL);

        activity = e_mail_reader_new_activity (reader);
        cancellable = e_activity_get_cancellable (activity);

        closure = g_slice_new0 (EMailReaderClosure);
        closure->activity = activity;
        closure->reader = g_object_ref (reader);

        camel_folder_get_message (
            folder, message_uid, G_PRIORITY_DEFAULT,
            cancellable, (GAsyncReadyCallback)
            action_mail_reply_all_check, closure);

        return;
    }

    e_mail_reader_reply_to_message (reader, NULL, E_MAIL_REPLY_TO_ALL);
}

static void
action_mail_reply_group_cb (GtkAction *action,
                            EMailReader *reader)
{
    GSettings *settings;
    gboolean reply_list;
    guint32 state;
    const gchar *key;

    state = e_mail_reader_check_state (reader);

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

    key = "composer-group-reply-to-list";
    reply_list = g_settings_get_boolean (settings, key);

    g_object_unref (settings);

    if (reply_list && (state & E_MAIL_READER_SELECTION_IS_MAILING_LIST)) {
        e_mail_reader_reply_to_message (
            reader, NULL, E_MAIL_REPLY_TO_LIST);
    } else
        action_mail_reply_all_cb (action, reader);
}

static void
action_mail_reply_list_cb (GtkAction *action,
                           EMailReader *reader)
{
    e_mail_reader_reply_to_message (reader, NULL, E_MAIL_REPLY_TO_LIST);
}

static gboolean
message_is_list_administrative (CamelMimeMessage *message)
{
    const gchar *header;

    header = camel_medium_get_header (
        CAMEL_MEDIUM (message), "X-List-Administrivia");
    if (header == NULL)
        return FALSE;

    while (*header == ' ' || *header == '\t')
        header++;

    return g_ascii_strncasecmp (header, "yes", 3) == 0;
}

static void
action_mail_reply_sender_check (CamelFolder *folder,
                                GAsyncResult *result,
                                EMailReaderClosure *closure)
{
    EAlertSink *alert_sink;
    CamelMimeMessage *message;
    EMailReplyType type = E_MAIL_REPLY_TO_SENDER;
    GSettings *settings;
    gboolean ask_ignore_list_reply_to;
    gboolean ask_list_reply_to;
    gboolean munged_list_message;
    gboolean active;
    const gchar *key;
    GError *error = NULL;

    alert_sink = e_activity_get_alert_sink (closure->activity);

    message = camel_folder_get_message_finish (folder, result, &error);

    if (e_activity_handle_cancellation (closure->activity, error)) {
        g_warn_if_fail (message == NULL);
        mail_reader_closure_free (closure);
        g_error_free (error);
        return;

    } else if (error != NULL) {
        g_warn_if_fail (message == NULL);
        e_alert_submit (
            alert_sink, "mail:no-retrieve-message",
            error->message, NULL);
        mail_reader_closure_free (closure);
        g_error_free (error);
        return;
    }

    g_return_if_fail (CAMEL_IS_MIME_MESSAGE (message));

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

    key = "composer-ignore-list-reply-to";
    ask_ignore_list_reply_to = g_settings_get_boolean (settings, key);

    key = "prompt-on-list-reply-to";
    ask_list_reply_to = g_settings_get_boolean (settings, key);

    munged_list_message = em_utils_is_munged_list_message (message);

    if (message_is_list_administrative (message)) {
        /* Do not ask for messages which are list administrative,
         * like list confirmation messages. */
    } else if (ask_ignore_list_reply_to || !munged_list_message) {
        /* Don't do the "Are you sure you want to reply in private?"
         * pop-up if it's a Reply-To: munged list message... unless
         * we're ignoring munging. */
        GtkWidget *dialog;
        GtkWidget *check;
        GtkWidget *container;
        gint response;

        dialog = e_alert_dialog_new_for_args (
            e_mail_reader_get_window (closure->reader),
            "mail:ask-list-private-reply", NULL);

        container = e_alert_dialog_get_content_area (
            E_ALERT_DIALOG (dialog));

        /* Check buttons */
        check = gtk_check_button_new_with_mnemonic (
            _("_Do not ask me again."));
        gtk_box_pack_start (
            GTK_BOX (container), check, FALSE, FALSE, 0);
        gtk_widget_show (check);

        response = gtk_dialog_run (GTK_DIALOG (dialog));

        active = gtk_toggle_button_get_active (
            GTK_TOGGLE_BUTTON (check));
        if (active) {
            key = "prompt-on-private-list-reply";
            g_settings_set_boolean (settings, key, FALSE);
        }

        gtk_widget_destroy (dialog);

        if (response == GTK_RESPONSE_YES)
            type = E_MAIL_REPLY_TO_ALL;
        else if (response == GTK_RESPONSE_OK)
            type = E_MAIL_REPLY_TO_LIST;
        else if (response == GTK_RESPONSE_CANCEL ||
            response == GTK_RESPONSE_DELETE_EVENT) {
            goto exit;
        }

    } else if (ask_list_reply_to) {
        GtkWidget *dialog;
        GtkWidget *container;
        GtkWidget *check_again;
        GtkWidget *check_always_ignore;
        gint response;

        dialog = e_alert_dialog_new_for_args (
            e_mail_reader_get_window (closure->reader),
            "mail:ask-list-honour-reply-to", NULL);

        container = e_alert_dialog_get_content_area (
            E_ALERT_DIALOG (dialog));

        check_again = gtk_check_button_new_with_mnemonic (
            _("_Do not ask me again."));
        gtk_box_pack_start (
            GTK_BOX (container), check_again, FALSE, FALSE, 0);
        gtk_widget_show (check_again);

        check_always_ignore = gtk_check_button_new_with_mnemonic (
            _("_Always ignore Reply-To: for mailing lists."));
        gtk_box_pack_start (
            GTK_BOX (container), check_always_ignore,
            FALSE, FALSE, 0);
        gtk_widget_show (check_always_ignore);

        response = gtk_dialog_run (GTK_DIALOG (dialog));

        active = gtk_toggle_button_get_active (
            GTK_TOGGLE_BUTTON (check_again));
        if (active) {
            key = "prompt-on-list-reply-to";
            g_settings_set_boolean (settings, key, FALSE);
        }

        key = "composer-ignore-list-reply-to";
        active = gtk_toggle_button_get_active (
            GTK_TOGGLE_BUTTON (check_always_ignore));
        g_settings_set_boolean (settings, key, active);

        gtk_widget_destroy (dialog);

        switch (response) {
            case GTK_RESPONSE_NO:
                type = E_MAIL_REPLY_TO_FROM;
                break;
            case GTK_RESPONSE_OK:
                type = E_MAIL_REPLY_TO_LIST;
                break;
            case GTK_RESPONSE_CANCEL:
            case GTK_RESPONSE_DELETE_EVENT:
                goto exit;
            default:
                break;
        }
    }

    e_mail_reader_reply_to_message (closure->reader, message, type);

exit:
    g_object_unref (settings);
    g_object_unref (message);

    mail_reader_closure_free (closure);
}

static void
action_mail_reply_sender_cb (GtkAction *action,
                             EMailReader *reader)
{
    GSettings *settings;
    gboolean ask_list_reply_to;
    gboolean ask_private_list_reply;
    gboolean ask;
    guint32 state;
    const gchar *key;

    state = e_mail_reader_check_state (reader);

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

    key = "prompt-on-list-reply-to";
    ask_list_reply_to = g_settings_get_boolean (settings, key);

    key = "prompt-on-private-list-reply";
    ask_private_list_reply = g_settings_get_boolean (settings, key);

    g_object_unref (settings);

    ask = (ask_private_list_reply || ask_list_reply_to);

    if (ask && (state & E_MAIL_READER_SELECTION_IS_MAILING_LIST)) {
        EActivity *activity;
        GCancellable *cancellable;
        EMailReaderClosure *closure;
        CamelFolder *folder;
        GtkWidget *message_list;
        const gchar *message_uid;

        folder = e_mail_reader_get_folder (reader);
        g_return_if_fail (CAMEL_IS_FOLDER (folder));

        message_list = e_mail_reader_get_message_list (reader);
        message_uid = MESSAGE_LIST (message_list)->cursor_uid;
        g_return_if_fail (message_uid != NULL);

        activity = e_mail_reader_new_activity (reader);
        cancellable = e_activity_get_cancellable (activity);

        closure = g_slice_new0 (EMailReaderClosure);
        closure->activity = activity;
        closure->reader = g_object_ref (reader);

        camel_folder_get_message (
            folder, message_uid, G_PRIORITY_DEFAULT,
            cancellable, (GAsyncReadyCallback)
            action_mail_reply_sender_check, closure);

        return;
    }

    e_mail_reader_reply_to_message (reader, NULL, E_MAIL_REPLY_TO_SENDER);
}

static void
action_mail_reply_recipient_cb (GtkAction *action,
                                EMailReader *reader)
{
    e_mail_reader_reply_to_message (reader, NULL, E_MAIL_REPLY_TO_RECIPIENT);
}

static void
action_mail_save_as_cb (GtkAction *action,
                        EMailReader *reader)
{
    e_mail_reader_save_messages (reader);
}

static void
action_mail_search_folder_from_mailing_list_cb (GtkAction *action,
                                                EMailReader *reader)
{
    e_mail_reader_create_vfolder_from_selected (reader, AUTO_MLIST);
}

static void
action_mail_search_folder_from_recipients_cb (GtkAction *action,
                                              EMailReader *reader)
{
    e_mail_reader_create_vfolder_from_selected (reader, AUTO_TO);
}

static void
action_mail_search_folder_from_sender_cb (GtkAction *action,
                                          EMailReader *reader)
{
    e_mail_reader_create_vfolder_from_selected (reader, AUTO_FROM);
}

static void
action_mail_search_folder_from_subject_cb (GtkAction *action,
                                           EMailReader *reader)
{
    e_mail_reader_create_vfolder_from_selected (reader, AUTO_SUBJECT);
}

static void
action_mail_show_all_headers_cb (GtkToggleAction *action,
                                 EMailReader *reader)
{
    EMailDisplay *display;
    EMailFormatterMode mode;

    display = e_mail_reader_get_mail_display (reader);

    /* Ignore action when viewing message source. */
    mode = e_mail_display_get_mode (display);
    if (mode == E_MAIL_FORMATTER_MODE_SOURCE)
        return;
    if (mode == E_MAIL_FORMATTER_MODE_RAW)
        return;

    if (gtk_toggle_action_get_active (action))
        mode = E_MAIL_FORMATTER_MODE_ALL_HEADERS;
    else
        mode = E_MAIL_FORMATTER_MODE_NORMAL;

    e_mail_display_set_mode (display, mode);
}

static void
mail_source_retrieved (GObject *source_object,
                       GAsyncResult *result,
                       gpointer user_data)
{
    EMailReaderClosure *closure;
    CamelMimeMessage *message;
    EMailDisplay *display;
    GError *error = NULL;

    closure = (EMailReaderClosure *) user_data;
    display = e_mail_reader_get_mail_display (closure->reader);

    message = camel_folder_get_message_finish (
        CAMEL_FOLDER (source_object), result, &error);

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

    if (message != NULL) {
        mail_reader_set_display_formatter_for_message (
            closure->reader, display,
            closure->message_uid, message,
            CAMEL_FOLDER (source_object));
    } else {
        gchar *status;

        status = g_strdup_printf (
            "%s<br>%s",
            _("Failed to retrieve message:"),
            error->message);
        e_mail_display_set_status (display, status);
        g_free (status);

        g_error_free (error);
    }

    e_activity_set_state (closure->activity, E_ACTIVITY_COMPLETED);

    mail_reader_closure_free (closure);
}

static void
action_mail_show_source_cb (GtkAction *action,
                            EMailReader *reader)
{
    EMailDisplay *display;
    EMailBackend *backend;
    GtkWidget *browser;
    CamelFolder *folder;
    GPtrArray *uids;
    const gchar *message_uid;
    gchar *string;
    EActivity *activity;
    GCancellable *cancellable;
    EMailReaderClosure *closure;

    backend = e_mail_reader_get_backend (reader);
    folder = e_mail_reader_get_folder (reader);
    uids = e_mail_reader_get_selected_uids (reader);
    g_return_if_fail (uids != NULL && uids->len == 1);
    message_uid = g_ptr_array_index (uids, 0);

    browser = e_mail_browser_new (
        backend, NULL, NULL, E_MAIL_FORMATTER_MODE_SOURCE);
    e_mail_reader_set_folder (E_MAIL_READER (browser), folder);
    e_mail_reader_set_message (E_MAIL_READER (browser), message_uid);
    display = e_mail_reader_get_mail_display (E_MAIL_READER (browser));

    string = g_strdup_printf (_("Retrieving message '%s'"), message_uid);
    e_mail_display_set_parts_list (display, NULL);
    e_mail_display_set_status (display, string);
    gtk_widget_show (browser);

    activity = e_mail_reader_new_activity (reader);
    e_activity_set_text (activity, string);
    cancellable = e_activity_get_cancellable (activity);
    g_free (string);

    closure = g_slice_new0 (EMailReaderClosure);
    closure->reader = g_object_ref (browser);
    closure->activity = g_object_ref (activity);
    closure->message_uid = g_strdup (message_uid);

    camel_folder_get_message (
        folder, message_uid, G_PRIORITY_DEFAULT,
        cancellable, mail_source_retrieved, closure);

    g_object_unref (activity);

    em_utils_uids_free (uids);
}

static void
action_mail_toggle_important_cb (GtkAction *action,
                                 EMailReader *reader)
{
    CamelFolder *folder;
    GPtrArray *uids;
    guint ii;

    folder = e_mail_reader_get_folder (reader);
    uids = e_mail_reader_get_selected_uids (reader);

    camel_folder_freeze (folder);

    for (ii = 0; ii < uids->len; ii++) {
        guint32 flags;

        flags = camel_folder_get_message_flags (
            folder, uids->pdata[ii]);
        flags ^= CAMEL_MESSAGE_FLAGGED;
        if (flags & CAMEL_MESSAGE_FLAGGED)
            flags &= ~CAMEL_MESSAGE_DELETED;

        camel_folder_set_message_flags (
            folder, uids->pdata[ii], CAMEL_MESSAGE_FLAGGED |
            CAMEL_MESSAGE_DELETED, flags);
    }

    camel_folder_thaw (folder);

    em_utils_uids_free (uids);
}

static void
action_mail_undelete_cb (GtkAction *action,
                         EMailReader *reader)
{
    guint32 mask = CAMEL_MESSAGE_DELETED;
    guint32 set  = 0;

    e_mail_reader_mark_selected (reader, mask, set);
}

static void
action_mail_zoom_100_cb (GtkAction *action,
                         EMailReader *reader)
{
    EMailDisplay *display;

    display = e_mail_reader_get_mail_display (reader);

    webkit_web_view_set_zoom_level (WEBKIT_WEB_VIEW (display), 1.0);
}

static void
action_mail_zoom_in_cb (GtkAction *action,
                        EMailReader *reader)
{
    EMailDisplay *display;

    display = e_mail_reader_get_mail_display (reader);

    webkit_web_view_zoom_in (WEBKIT_WEB_VIEW (display));
}

static void
action_mail_zoom_out_cb (GtkAction *action,
                         EMailReader *reader)
{
    EMailDisplay *display;

    display = e_mail_reader_get_mail_display (reader);

    webkit_web_view_zoom_out (WEBKIT_WEB_VIEW (display));
}

static void
action_search_folder_recipient_cb (GtkAction *action,
                                   EMailReader *reader)
{
    EMailBackend *backend;
    EMailSession *session;
    EWebView *web_view;
    CamelFolder *folder;
    CamelURL *curl;
    const gchar *uri;

    /* This action is defined in EMailDisplay. */

    folder = e_mail_reader_get_folder (reader);
    web_view = E_WEB_VIEW (e_mail_reader_get_mail_display (reader));

    uri = e_web_view_get_selected_uri (web_view);
    g_return_if_fail (uri != NULL);

    curl = camel_url_new (uri, NULL);
    g_return_if_fail (curl != NULL);

    backend = e_mail_reader_get_backend (reader);
    session = e_mail_backend_get_session (backend);

    if (curl->path != NULL && *curl->path != '\0') {
        CamelInternetAddress *inet_addr;

        inet_addr = camel_internet_address_new ();
        camel_address_decode (CAMEL_ADDRESS (inet_addr), curl->path);
        vfolder_gui_add_from_address (
            session, inet_addr, AUTO_TO, folder);
        g_object_unref (inet_addr);
    }

    camel_url_free (curl);
}

static void
action_search_folder_sender_cb (GtkAction *action,
                                EMailReader *reader)
{
    EMailBackend *backend;
    EMailSession *session;
    EWebView *web_view;
    CamelFolder *folder;
    CamelURL *curl;
    const gchar *uri;

    /* This action is defined in EMailDisplay. */

    folder = e_mail_reader_get_folder (reader);
    web_view = E_WEB_VIEW (e_mail_reader_get_mail_display (reader));

    uri = e_web_view_get_selected_uri (web_view);
    g_return_if_fail (uri != NULL);

    curl = camel_url_new (uri, NULL);
    g_return_if_fail (curl != NULL);

    backend = e_mail_reader_get_backend (reader);
    session = e_mail_backend_get_session (backend);

    if (curl->path != NULL && *curl->path != '\0') {
        CamelInternetAddress *inet_addr;

        inet_addr = camel_internet_address_new ();
        camel_address_decode (CAMEL_ADDRESS (inet_addr), curl->path);
        vfolder_gui_add_from_address (
            session, inet_addr, AUTO_FROM, folder);
        g_object_unref (inet_addr);
    }

    camel_url_free (curl);
}

static GtkActionEntry mail_reader_entries[] = {

    { "mail-add-sender",
      NULL,
      N_("A_dd Sender to Address Book"),
      NULL,
      N_("Add sender to address book"),
      G_CALLBACK (action_mail_add_sender_cb) },

    { "mail-check-for-junk",
      "mail-mark-junk",
      N_("Check for _Junk"),
      NULL,
      N_("Filter the selected messages for junk status"),
      G_CALLBACK (action_mail_check_for_junk_cb) },

    { "mail-copy",
      "mail-copy",
      N_("_Copy to Folder..."),
      "<Shift><Control>y",
      N_("Copy selected messages to another folder"),
      G_CALLBACK (action_mail_copy_cb) },

    { "mail-delete",
      "user-trash",
      N_("_Delete Message"),
      "<Control>d",
      N_("Mark the selected messages for deletion"),
      G_CALLBACK (action_mail_delete_cb) },

    { "mail-filter-rule-for-mailing-list",
      NULL,
      N_("Create a Filter Rule for Mailing _List..."),
      NULL,
      N_("Create a rule to filter messages to this mailing list"),
      G_CALLBACK (action_mail_filter_on_mailing_list_cb) },

    { "mail-filter-rule-for-recipients",
      NULL,
      N_("Create a Filter Rule for _Recipients..."),
      NULL,
      N_("Create a rule to filter messages to these recipients"),
      G_CALLBACK (action_mail_filter_on_recipients_cb) },

    { "mail-filter-rule-for-sender",
      NULL,
      N_("Create a Filter Rule for Se_nder..."),
      NULL,
      N_("Create a rule to filter messages from this sender"),
      G_CALLBACK (action_mail_filter_on_sender_cb) },

    { "mail-filter-rule-for-subject",
      NULL,
      N_("Create a Filter Rule for _Subject..."),
      NULL,
      N_("Create a rule to filter messages with this subject"),
      G_CALLBACK (action_mail_filter_on_subject_cb) },

    { "mail-filters-apply",
      "stock_mail-filters-apply",
      N_("A_pply Filters"),
      "<Control>y",
      N_("Apply filter rules to the selected messages"),
      G_CALLBACK (action_mail_filters_apply_cb) },

    { "mail-find",
      GTK_STOCK_FIND,
      N_("_Find in Message..."),
      "<Shift><Control>f",
      N_("Search for text in the body of the displayed message"),
      G_CALLBACK (action_mail_find_cb) },

    { "mail-flag-clear",
      NULL,
      N_("_Clear Flag"),
      NULL,
      N_("Remove the follow-up flag from the selected messages"),
      G_CALLBACK (action_mail_flag_clear_cb) },

    { "mail-flag-completed",
      NULL,
      N_("_Flag Completed"),
      NULL,
      N_("Set the follow-up flag to completed on the selected messages"),
      G_CALLBACK (action_mail_flag_completed_cb) },

    { "mail-flag-for-followup",
      "stock_mail-flag-for-followup",
      N_("Follow _Up..."),
      "<Shift><Control>g",
      N_("Flag the selected messages for follow-up"),
      G_CALLBACK (action_mail_flag_for_followup_cb) },

    { "mail-forward-attached",
      NULL,
      N_("_Attached"),
      NULL,
      N_("Forward the selected message to someone as an attachment"),
      G_CALLBACK (action_mail_forward_attached_cb) },

    { "mail-forward-attached-full",
      NULL,
      N_("Forward As _Attached"),
      NULL,
      N_("Forward the selected message to someone as an attachment"),
      G_CALLBACK (action_mail_forward_attached_cb) },

    { "mail-forward-inline",
      NULL,
      N_("_Inline"),
      NULL,
      N_("Forward the selected message in the body of a new message"),
      G_CALLBACK (action_mail_forward_inline_cb) },

    { "mail-forward-inline-full",
      NULL,
      N_("Forward As _Inline"),
      NULL,
      N_("Forward the selected message in the body of a new message"),
      G_CALLBACK (action_mail_forward_inline_cb) },

    { "mail-forward-quoted",
      NULL,
      N_("_Quoted"),
      NULL,
      N_("Forward the selected message quoted like a reply"),
      G_CALLBACK (action_mail_forward_quoted_cb) },

    { "mail-forward-quoted-full",
      NULL,
      N_("Forward As _Quoted"),
      NULL,
      N_("Forward the selected message quoted like a reply"),
      G_CALLBACK (action_mail_forward_quoted_cb) },

    { "mail-load-images",
      "image-x-generic",
      N_("_Load Images"),
      "<Control>i",
      N_("Force images in HTML mail to be loaded"),
      G_CALLBACK (action_mail_load_images_cb) },

    { "mail-mark-important",
      "mail-mark-important",
      N_("_Important"),
      NULL,
      N_("Mark the selected messages as important"),
      G_CALLBACK (action_mail_mark_important_cb) },

    { "mail-mark-junk",
      "mail-mark-junk",
      N_("_Junk"),
      "<Control>j",
      N_("Mark the selected messages as junk"),
      G_CALLBACK (action_mail_mark_junk_cb) },

    { "mail-mark-notjunk",
      "mail-mark-notjunk",
      N_("_Not Junk"),
      "<Shift><Control>j",
      N_("Mark the selected messages as not being junk"),
      G_CALLBACK (action_mail_mark_notjunk_cb) },

    { "mail-mark-read",
      "mail-mark-read",
      N_("_Read"),
      "<Control>k",
      N_("Mark the selected messages as having been read"),
      G_CALLBACK (action_mail_mark_read_cb) },

    { "mail-mark-unimportant",
      NULL,
      N_("Uni_mportant"),
      NULL,
      N_("Mark the selected messages as unimportant"),
      G_CALLBACK (action_mail_mark_unimportant_cb) },

    { "mail-mark-unread",
      "mail-mark-unread",
      N_("_Unread"),
      "<Shift><Control>k",
      N_("Mark the selected messages as not having been read"),
      G_CALLBACK (action_mail_mark_unread_cb) },

    { "mail-message-edit",
      NULL,
      N_("_Edit as New Message..."),
      NULL,
      N_("Open the selected messages in the composer for editing"),
      G_CALLBACK (action_mail_message_edit_cb) },

    { "mail-message-new",
      "mail-message-new",
      N_("Compose _New Message"),
      "<Shift><Control>m",
      N_("Open a window for composing a mail message"),
      G_CALLBACK (action_mail_message_new_cb) },

    { "mail-message-open",
      NULL,
      N_("_Open in New Window"),
      "<Control>o",
      N_("Open the selected messages in a new window"),
      G_CALLBACK (action_mail_message_open_cb) },

    { "mail-move",
      "mail-move",
      N_("_Move to Folder..."),
      "<Shift><Control>v",
      N_("Move selected messages to another folder"),
      G_CALLBACK (action_mail_move_cb) },

    { "mail-goto-folder",
      NULL,
      N_("_Switch to Folder"),
      "<Control>Up",
      N_("Display the parent folder"),
      G_CALLBACK (action_mail_folder_cb) },

    { "mail-goto-nexttab",
      NULL,
      N_("Switch to _next tab"),
      "<Shift><Control>Down",
      N_("Switch to the next tab"),
      G_CALLBACK (action_mail_nexttab_cb) },

    { "mail-goto-prevtab",
      NULL,
      N_("Switch to _previous tab"),
      "<Shift><Control>Up",
      N_("Switch to the previous tab"),
      G_CALLBACK (action_mail_prevtab_cb) },

    { "mail-close-tab",
      NULL,
      N_("Cl_ose current tab"),
      "<Shift><Control>w",
      N_("Close current tab"),
      G_CALLBACK (action_mail_closetab_cb) },

    { "mail-next",
      GTK_STOCK_GO_FORWARD,
      N_("_Next Message"),
      "<Control>Page_Down",
      N_("Display the next message"),
      G_CALLBACK (action_mail_next_cb) },

    { "mail-next-important",
      NULL,
      N_("Next _Important Message"),
      NULL,
      N_("Display the next important message"),
      G_CALLBACK (action_mail_next_important_cb) },

    { "mail-next-thread",
      NULL,
      N_("Next _Thread"),
      NULL,
      N_("Display the next thread"),
      G_CALLBACK (action_mail_next_thread_cb) },

    { "mail-next-unread",
      NULL,
      N_("Next _Unread Message"),
      "<Control>bracketright",
      N_("Display the next unread message"),
      G_CALLBACK (action_mail_next_unread_cb) },

    { "mail-previous",
      GTK_STOCK_GO_BACK,
      N_("_Previous Message"),
      "<Control>Page_Up",
      N_("Display the previous message"),
      G_CALLBACK (action_mail_previous_cb) },

    { "mail-previous-important",
      NULL,
      N_("Pr_evious Important Message"),
      NULL,
      N_("Display the previous important message"),
      G_CALLBACK (action_mail_previous_important_cb) },

    { "mail-previous-thread",
      NULL,
      N_("Previous T_hread"),
      NULL,
      N_("Display the previous thread"),
      G_CALLBACK (action_mail_previous_thread_cb) },

    { "mail-previous-unread",
      NULL,
      N_("P_revious Unread Message"),
      "<Control>bracketleft",
      N_("Display the previous unread message"),
      G_CALLBACK (action_mail_previous_unread_cb) },

    { "mail-print",
      GTK_STOCK_PRINT,
      NULL,
      "<Control>p",
      N_("Print this message"),
      G_CALLBACK (action_mail_print_cb) },

    { "mail-print-preview",
      GTK_STOCK_PRINT_PREVIEW,
      NULL,
      NULL,
      N_("Preview the message to be printed"),
      G_CALLBACK (action_mail_print_preview_cb) },

    { "mail-redirect",
      NULL,
      N_("Re_direct"),
      NULL,
      N_("Redirect (bounce) the selected message to someone"),
      G_CALLBACK (action_mail_redirect_cb) },

    { "mail-remove-attachments",
      GTK_STOCK_DELETE,
      N_("Remo_ve Attachments"),
      NULL,
      N_("Remove attachments"),
      G_CALLBACK (action_mail_remove_attachments_cb) },

    { "mail-remove-duplicates",
       NULL,
       N_("Remove Du_plicate Messages"),
       NULL,
       N_("Checks selected messages for duplicates"),
       G_CALLBACK (action_mail_remove_duplicates_cb) },

    { "mail-reply-all",
      NULL,
      N_("Reply to _All"),
      "<Shift><Control>r",
      N_("Compose a reply to all the recipients of the selected message"),
      G_CALLBACK (action_mail_reply_all_cb) },

    { "mail-reply-list",
      NULL,
      N_("Reply to _List"),
      "<Control>l",
      N_("Compose a reply to the mailing list of the selected message"),
      G_CALLBACK (action_mail_reply_list_cb) },

    { "mail-reply-sender",
      "mail-reply-sender",
      N_("_Reply to Sender"),
      "<Control>r",
      N_("Compose a reply to the sender of the selected message"),
      G_CALLBACK (action_mail_reply_sender_cb) },

    { "mail-save-as",
      GTK_STOCK_SAVE_AS,
      N_("_Save as mbox..."),
      "<Control>s",
      N_("Save selected messages as an mbox file"),
      G_CALLBACK (action_mail_save_as_cb) },

    { "mail-show-source",
      NULL,
      N_("_Message Source"),
      "<Control>u",
      N_("Show the raw email source of the message"),
      G_CALLBACK (action_mail_show_source_cb) },

    { "mail-toggle-important",
      NULL,
      NULL,  /* No menu item; key press only */
      NULL,
      NULL,
      G_CALLBACK (action_mail_toggle_important_cb) },

    { "mail-undelete",
      NULL,
      N_("_Undelete Message"),
      "<Shift><Control>d",
      N_("Undelete the selected messages"),
      G_CALLBACK (action_mail_undelete_cb) },

    { "mail-zoom-100",
      GTK_STOCK_ZOOM_100,
      N_("_Normal Size"),
      "<Control>0",
      N_("Reset the text to its original size"),
      G_CALLBACK (action_mail_zoom_100_cb) },

    { "mail-zoom-in",
      GTK_STOCK_ZOOM_IN,
      N_("_Zoom In"),
      "<Control>plus",
      N_("Increase the text size"),
      G_CALLBACK (action_mail_zoom_in_cb) },

    { "mail-zoom-out",
      GTK_STOCK_ZOOM_OUT,
      N_("Zoom _Out"),
      "<Control>minus",
      N_("Decrease the text size"),
      G_CALLBACK (action_mail_zoom_out_cb) },

    /*** Menus ***/

    { "mail-create-menu",
      NULL,
      N_("Cre_ate"),
      NULL,
      NULL,
      NULL },

    { "mail-encoding-menu",
      NULL,
      N_("Ch_aracter Encoding"),
      NULL,
      NULL,
      NULL },

    { "mail-forward-as-menu",
      NULL,
      N_("F_orward As"),
      NULL,
      NULL,
      NULL },

    { "mail-reply-group-menu",
      NULL,
      N_("_Group Reply"),
      NULL,
      NULL,
      NULL },

    { "mail-goto-menu",
      GTK_STOCK_JUMP_TO,
      N_("_Go To"),
      NULL,
      NULL,
      NULL },

    { "mail-mark-as-menu",
      NULL,
      N_("Mar_k As"),
      NULL,
      NULL,
      NULL },

    { "mail-message-menu",
      NULL,
      N_("_Message"),
      NULL,
      NULL,
      NULL },

    { "mail-zoom-menu",
      NULL,
      N_("_Zoom"),
      NULL,
      NULL,
      NULL }
};

static GtkActionEntry mail_reader_search_folder_entries[] = {

    { "mail-search-folder-from-mailing-list",
      NULL,
      N_("Create a Search Folder from Mailing _List..."),
      NULL,
      N_("Create a search folder for this mailing list"),
      G_CALLBACK (action_mail_search_folder_from_mailing_list_cb) },

    { "mail-search-folder-from-recipients",
      NULL,
      N_("Create a Search Folder from Recipien_ts..."),
      NULL,
      N_("Create a search folder for these recipients"),
      G_CALLBACK (action_mail_search_folder_from_recipients_cb) },

    { "mail-search-folder-from-sender",
      NULL,
      N_("Create a Search Folder from Sen_der..."),
      NULL,
      N_("Create a search folder for this sender"),
      G_CALLBACK (action_mail_search_folder_from_sender_cb) },

    { "mail-search-folder-from-subject",
      NULL,
      N_("Create a Search Folder from S_ubject..."),
      NULL,
      N_("Create a search folder for this subject"),
      G_CALLBACK (action_mail_search_folder_from_subject_cb) },
};

static EPopupActionEntry mail_reader_popup_entries[] = {

    { "mail-popup-copy",
      NULL,
      "mail-copy" },

    { "mail-popup-delete",
      NULL,
      "mail-delete" },

    { "mail-popup-flag-clear",
      NULL,
      "mail-flag-clear" },

    { "mail-popup-flag-completed",
      NULL,
      "mail-flag-completed" },

    { "mail-popup-flag-for-followup",
      N_("Mark for Follo_w Up..."),
      "mail-flag-for-followup" },

    { "mail-popup-forward",
      NULL,
      "mail-forward" },

    { "mail-popup-mark-important",
      N_("Mark as _Important"),
      "mail-mark-important" },

    { "mail-popup-mark-junk",
      N_("Mark as _Junk"),
      "mail-mark-junk" },

    { "mail-popup-mark-notjunk",
      N_("Mark as _Not Junk"),
      "mail-mark-notjunk" },

    { "mail-popup-mark-read",
      N_("Mar_k as Read"),
      "mail-mark-read" },

    { "mail-popup-mark-unimportant",
      N_("Mark as Uni_mportant"),
      "mail-mark-unimportant" },

    { "mail-popup-mark-unread",
      N_("Mark as _Unread"),
      "mail-mark-unread" },

    { "mail-popup-message-edit",
      NULL,
      "mail-message-edit" },

    { "mail-popup-move",
      NULL,
      "mail-move" },

    { "mail-popup-print",
      NULL,
      "mail-print" },

    { "mail-popup-remove-attachments",
      NULL,
      "mail-remove-attachments" },

    { "mail-popup-remove-duplicates",
      NULL,
      "mail-remove-duplicates" },

    { "mail-popup-reply-all",
      NULL,
      "mail-reply-all" },

    { "mail-popup-reply-sender",
      NULL,
      "mail-reply-sender" },

    { "mail-popup-save-as",
      NULL,
      "mail-save-as" },

    { "mail-popup-undelete",
      NULL,
      "mail-undelete" }
};

static GtkToggleActionEntry mail_reader_toggle_entries[] = {

    { "mail-caret-mode",
      NULL,
      N_("_Caret Mode"),
      "F7",
      N_("Show a blinking cursor in the body of displayed messages"),
      NULL,  /* No callback required */
      FALSE },

    { "mail-show-all-headers",
      NULL,
      N_("All Message _Headers"),
      NULL,
      N_("Show messages with all email headers"),
      G_CALLBACK (action_mail_show_all_headers_cb),
      FALSE }
};

static void
mail_reader_double_click_cb (EMailReader *reader,
                             gint row,
                             ETreePath path,
                             gint col,
                             GdkEvent *event)
{
    GtkAction *action;

    /* Ignore double clicks on columns that handle their own state. */
    if (MESSAGE_LIST_COLUMN_IS_ACTIVE (col))
        return;

    action = e_mail_reader_get_action (reader, "mail-message-open");
    gtk_action_activate (action);
}

static gboolean
mail_reader_key_press_event_cb (EMailReader *reader,
                                GdkEventKey *event)
{
    GtkAction *action;
    const gchar *action_name;

    if (!gtk_widget_has_focus (GTK_WIDGET (reader))) {
        WebKitWebFrame *frame;
        WebKitDOMDocument *dom;
        WebKitDOMElement *element;
        EMailDisplay *display;
        gchar *name = NULL;

        display = e_mail_reader_get_mail_display (reader);
        frame = webkit_web_view_get_focused_frame (WEBKIT_WEB_VIEW (display));

        if (frame != NULL) {
            dom = webkit_web_frame_get_dom_document (frame);
            /* intentionally used "static_cast" */
            element = webkit_dom_html_document_get_active_element ((WebKitDOMHTMLDocument *) dom);

            if (element != NULL)
                name = webkit_dom_node_get_node_name (WEBKIT_DOM_NODE (element));

            /* If INPUT or TEXTAREA has focus,
             * then any key press should go there. */
            if (name != NULL &&
                (g_ascii_strcasecmp (name, "INPUT") == 0 ||
                 g_ascii_strcasecmp (name, "TEXTAREA") == 0)) {
                g_free (name);
                return FALSE;
            }
            g_free (name);
        }
    }

    if ((event->state & GDK_CONTROL_MASK) != 0)
        goto ctrl;

    /* <keyval> alone */
    switch (event->keyval) {
        case GDK_KEY_Delete:
        case GDK_KEY_KP_Delete:
            action_name = "mail-delete";
            break;

        case GDK_KEY_Return:
        case GDK_KEY_KP_Enter:
        case GDK_KEY_ISO_Enter:
            action_name = "mail-message-open";
            break;

        case GDK_KEY_period:
        case GDK_KEY_bracketright:
            action_name = "mail-next-unread";
            break;

        case GDK_KEY_comma:
        case GDK_KEY_bracketleft:
            action_name = "mail-previous-unread";
            break;

#ifdef HAVE_XFREE
        case XF86XK_Reply:
            action_name = "mail-reply-all";
            break;

        case XF86XK_MailForward:
            action_name = "mail-forward";
            break;
#endif

        case GDK_KEY_exclam:
            action_name = "mail-toggle-important";
            break;

        default:
            return FALSE;
    }

    goto exit;

ctrl:

    /* Ctrl + <keyval> */
    switch (event->keyval) {
        case GDK_KEY_period:
            action_name = "mail-next-unread";
            break;

        case GDK_KEY_comma:
            action_name = "mail-previous-unread";
            break;

        default:
            return FALSE;
    }

exit:
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_activate (action);

    return TRUE;
}

static gint
mail_reader_key_press_cb (EMailReader *reader,
                          gint row,
                          ETreePath path,
                          gint col,
                          GdkEvent *event)
{
    return mail_reader_key_press_event_cb (reader, &event->key);
}

static gboolean
mail_reader_message_seen_cb (EMailReaderClosure *closure)
{
    EMailReader *reader;
    GtkWidget *message_list;
    EMailPartList *parts;
    EMailDisplay *display;
    CamelMimeMessage *message;
    const gchar *current_uid;
    const gchar *message_uid;
    gboolean uid_is_current = TRUE;

    reader = closure->reader;
    message_uid = closure->message_uid;

    display = e_mail_reader_get_mail_display (reader);
    parts = e_mail_display_get_parts_list (display);
    message_list = e_mail_reader_get_message_list (reader);

    if (e_tree_is_dragging (E_TREE (message_list)))
        return FALSE;

    current_uid = MESSAGE_LIST (message_list)->cursor_uid;
    uid_is_current &= (g_strcmp0 (current_uid, message_uid) == 0);

    if (parts != NULL)
        message = e_mail_part_list_get_message (parts);
    else
        message = NULL;

    if (uid_is_current && message != NULL)
        g_signal_emit (
            reader, signals[MESSAGE_SEEN], 0,
            message_uid, message);

    return FALSE;
}

static gboolean
schedule_timeout_mark_seen (EMailReader *reader)
{
    MessageList *message_list;
    GSettings *settings;
    gboolean schedule_timeout;
    gint timeout_interval;
    const gchar *message_uid;

    message_list = MESSAGE_LIST (e_mail_reader_get_message_list (reader));

    message_uid = message_list->cursor_uid;
    if (message_uid == NULL ||
        e_tree_is_dragging (E_TREE (message_list)))
        return FALSE;

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

    /* FIXME These should be EMailReader properties. */
    schedule_timeout =
        (message_uid != NULL) &&
        g_settings_get_boolean (settings, "mark-seen");
    timeout_interval = g_settings_get_int (settings, "mark-seen-timeout");

    g_object_unref (settings);

    if (message_list->seen_id > 0) {
        g_source_remove (message_list->seen_id);
        message_list->seen_id = 0;
    }

    if (schedule_timeout) {
        EMailReaderClosure *timeout_closure;

        timeout_closure = g_slice_new0 (EMailReaderClosure);
        timeout_closure->reader = g_object_ref (reader);
        timeout_closure->message_uid = g_strdup (message_uid);

        MESSAGE_LIST (message_list)->seen_id = g_timeout_add_full (
            G_PRIORITY_DEFAULT, timeout_interval,
            (GSourceFunc) mail_reader_message_seen_cb,
            timeout_closure, (GDestroyNotify)
            mail_reader_closure_free);
    }

    return schedule_timeout;
}

static gboolean
discard_timeout_mark_seen_cb (EMailReader *reader)
{
    MessageList *message_list;

    g_return_val_if_fail (reader != NULL, FALSE);

    message_list = MESSAGE_LIST (e_mail_reader_get_message_list (reader));
    g_return_val_if_fail (message_list != NULL, FALSE);

    if (message_list->seen_id > 0) {
        g_source_remove (message_list->seen_id);
        message_list->seen_id = 0;
    }

    return FALSE;
}

static void
mail_reader_message_loaded_cb (CamelFolder *folder,
                               GAsyncResult *result,
                               EMailReaderClosure *closure)
{
    EMailReader *reader;
    EMailReaderPrivate *priv;
    CamelMimeMessage *message = NULL;
    GtkWidget *message_list;
    const gchar *message_uid;
    GError *error = NULL;

    reader = closure->reader;
    message_uid = closure->message_uid;

    priv = E_MAIL_READER_GET_PRIVATE (reader);

    /* If the private struct is NULL, the EMailReader was destroyed
     * while we were loading the message and we're likely holding the
     * last reference.  Nothing to do but drop the reference.
     * FIXME Use a GWeakRef instead of this hack. */
    if (priv == NULL) {
        mail_reader_closure_free (closure);
        return;
    }

    message = camel_folder_get_message_finish (folder, result, &error);

    /* If the user picked a different message in the time it took
     * to fetch this message, then don't bother rendering it. */
    if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
        g_clear_error (&error);
        goto exit;
    }

    message_list = e_mail_reader_get_message_list (reader);

    if (message_list == NULL) {
        /* For cases where message fetching took so long that
         * user closed the message window before this was called. */
        goto exit;
    }

    if (message != NULL)
        g_signal_emit (
            reader, signals[MESSAGE_LOADED], 0,
            message_uid, message);

exit:
    priv->restoring_message_selection = FALSE;

    if (error != NULL) {
        EPreviewPane *preview_pane;
        EWebView *web_view;

        preview_pane = e_mail_reader_get_preview_pane (reader);
        web_view = e_preview_pane_get_web_view (preview_pane);

        e_alert_submit (
            E_ALERT_SINK (web_view),
            "mail:no-retrieve-message",
            error->message, NULL);
    }

    g_clear_error (&error);

    mail_reader_closure_free (closure);

    g_clear_object (&message);
}

static gboolean
mail_reader_message_selected_timeout_cb (EMailReader *reader)
{
    EMailReaderPrivate *priv;
    EMailDisplay *display;
    GtkWidget *message_list;
    CamelFolder *folder;
    const gchar *cursor_uid;
    const gchar *format_uid;
    EMailPartList *parts;

    priv = E_MAIL_READER_GET_PRIVATE (reader);

    folder = e_mail_reader_get_folder (reader);

    message_list = e_mail_reader_get_message_list (reader);
    display = e_mail_reader_get_mail_display (reader);
    parts = e_mail_display_get_parts_list (display);

    cursor_uid = MESSAGE_LIST (message_list)->cursor_uid;
    if (parts != NULL)
        format_uid = e_mail_part_list_get_message_uid (parts);
    else
        format_uid = NULL;

    if (MESSAGE_LIST (message_list)->last_sel_single) {
        GtkWidget *widget;
        gboolean display_visible;
        gboolean selected_uid_changed;

        /* Decide whether to download the full message now. */
        widget = GTK_WIDGET (display);
        display_visible = gtk_widget_get_mapped (widget);

        selected_uid_changed = (g_strcmp0 (cursor_uid, format_uid) != 0);

        if (display_visible && selected_uid_changed) {
            EMailReaderClosure *closure;
            GCancellable *cancellable;
            EActivity *activity;
            gchar *string;

            string = g_strdup_printf (
                _("Retrieving message '%s'"), cursor_uid);
            e_mail_display_set_parts_list (display, NULL);
            e_mail_display_set_status (display, string);
            g_free (string);

            activity = e_mail_reader_new_activity (reader);
            e_activity_set_text (activity, _("Retrieving message"));
            cancellable = e_activity_get_cancellable (activity);

            closure = g_slice_new0 (EMailReaderClosure);
            closure->activity = activity;
            closure->reader = g_object_ref (reader);
            closure->message_uid = g_strdup (cursor_uid);

            camel_folder_get_message (
                folder, cursor_uid, G_PRIORITY_DEFAULT,
                cancellable, (GAsyncReadyCallback)
                mail_reader_message_loaded_cb, closure);

            if (priv->retrieving_message != NULL)
                g_object_unref (priv->retrieving_message);
            priv->retrieving_message = g_object_ref (cancellable);
        }
    } else {
        e_mail_display_set_parts_list (display, NULL);
        priv->restoring_message_selection = FALSE;
    }

    priv->message_selected_timeout_id = 0;

    return FALSE;
}

static void
mail_reader_message_selected_cb (EMailReader *reader,
                                 const gchar *message_uid)
{
    EMailReaderPrivate *priv;
    MessageList *message_list;

    priv = E_MAIL_READER_GET_PRIVATE (reader);

    /* Cancel the previous message retrieval activity. */
    g_cancellable_cancel (priv->retrieving_message);

    /* Cancel the seen timer. */
    message_list = MESSAGE_LIST (e_mail_reader_get_message_list (reader));
    if (message_list != NULL && message_list->seen_id) {
        g_source_remove (message_list->seen_id);
        message_list->seen_id = 0;
    }

    /* Cancel the message selected timer. */
    if (priv->message_selected_timeout_id > 0) {
        g_source_remove (priv->message_selected_timeout_id);
        priv->message_selected_timeout_id = 0;
    }

    /* If a folder was just selected then we are now automatically
     * restoring the previous message selection.  We behave slightly
     * differently than if the user had selected the message. */
    priv->restoring_message_selection = priv->folder_was_just_selected;
    priv->folder_was_just_selected = FALSE;

    if (message_list_selected_count (message_list) != 1) {
        EMailDisplay *display;

        display = e_mail_reader_get_mail_display (reader);
        e_mail_display_set_parts_list (display, NULL);
        e_web_view_clear (E_WEB_VIEW (display));
    } else if (priv->restoring_message_selection) {
        /* Skip the timeout if we're restoring the previous message
         * selection.  The timeout is there for when we're scrolling
         * rapidly through the message list. */
        mail_reader_message_selected_timeout_cb (reader);
    } else {
        priv->message_selected_timeout_id = g_timeout_add (
            100, (GSourceFunc)
            mail_reader_message_selected_timeout_cb, reader);
    }

    e_mail_reader_changed (reader);
}

static void
mail_reader_message_cursor_change_cb (EMailReader *reader)
{
    MessageList *message_list;
    EMailReaderPrivate *priv;

    g_return_if_fail (reader != NULL);

    priv = E_MAIL_READER_GET_PRIVATE (reader);
    g_return_if_fail (priv != NULL);

    message_list = MESSAGE_LIST (e_mail_reader_get_message_list (reader));
    g_return_if_fail (message_list != NULL);

    if (message_list->seen_id == 0 &&
        E_IS_MAIL_VIEW (reader) &&
        e_mail_view_get_preview_visible (E_MAIL_VIEW (reader)) &&
        !priv->avoid_next_mark_as_seen)
        schedule_timeout_mark_seen (reader);
}

static void
mail_reader_emit_folder_loaded (EMailReader *reader)
{
    EMailReaderPrivate *priv;
    MessageList *message_list;

    priv = E_MAIL_READER_GET_PRIVATE (reader);
    message_list = MESSAGE_LIST (e_mail_reader_get_message_list (reader));

    if (priv && (message_list_count (message_list) <= 0 ||
        message_list_selected_count (message_list) <= 0))
        priv->avoid_next_mark_as_seen = FALSE;

    g_signal_emit (reader, signals[FOLDER_LOADED], 0);
}

static EAlertSink *
mail_reader_get_alert_sink (EMailReader *reader)
{
    EPreviewPane *preview_pane;

    preview_pane = e_mail_reader_get_preview_pane (reader);

    return E_ALERT_SINK (preview_pane);
}

static GPtrArray *
mail_reader_get_selected_uids (EMailReader *reader)
{
    GtkWidget *message_list;

    message_list = e_mail_reader_get_message_list (reader);

    return message_list_get_selected (MESSAGE_LIST (message_list));
}

static CamelFolder *
mail_reader_get_folder (EMailReader *reader)
{
    GtkWidget *message_list;

    message_list = e_mail_reader_get_message_list (reader);

    return MESSAGE_LIST (message_list)->folder;
}

static gboolean
mail_reader_get_enable_show_folder (EMailReader *reader)
{
    return FALSE;
}

static void
mail_reader_set_folder (EMailReader *reader,
                        CamelFolder *folder)
{
    EMailReaderPrivate *priv;
    EMailDisplay *display;
    CamelFolder *previous_folder;
    ESourceRegistry *registry;
    GtkWidget *message_list;
    EMailBackend *backend;
    EShell *shell;
    gboolean outgoing;
    gboolean sync_folder;

    priv = E_MAIL_READER_GET_PRIVATE (reader);

    backend = e_mail_reader_get_backend (reader);
    display = e_mail_reader_get_mail_display (reader);
    message_list = e_mail_reader_get_message_list (reader);

    previous_folder = e_mail_reader_get_folder (reader);

    backend = e_mail_reader_get_backend (reader);
    shell = e_shell_backend_get_shell (E_SHELL_BACKEND (backend));
    registry = e_shell_get_registry (shell);

    /* Only synchronize the real folder if we're online. */
    sync_folder =
        (previous_folder != NULL) &&
        (CAMEL_IS_VEE_FOLDER (previous_folder) ||
        e_shell_get_online (shell));
    if (sync_folder)
        mail_sync_folder (previous_folder, TRUE, NULL, NULL);

    /* Skip the rest if we're already viewing the folder. */
    if (folder == previous_folder)
        return;

    outgoing = folder != NULL && (
        em_utils_folder_is_drafts (registry, folder) ||
        em_utils_folder_is_outbox (registry, folder) ||
        em_utils_folder_is_sent (registry, folder));

    e_web_view_clear (E_WEB_VIEW (display));

    priv->folder_was_just_selected = (folder != NULL);

    /* This is to make sure any post-poned changes in Search
     * Folders will be propagated on folder selection. */
    if (CAMEL_IS_VEE_FOLDER (folder))
        mail_sync_folder (folder, FALSE, NULL, NULL);

    message_list_set_folder (
        MESSAGE_LIST (message_list), folder, outgoing);

    mail_reader_emit_folder_loaded (reader);
}

static void
mail_reader_set_message (EMailReader *reader,
                         const gchar *message_uid)
{
    GtkWidget *message_list;

    message_list = e_mail_reader_get_message_list (reader);

    message_list_select_uid (
        MESSAGE_LIST (message_list), message_uid, FALSE);
}

static void
mail_reader_folder_loaded (EMailReader *reader)
{
    guint32 state;

    state = e_mail_reader_check_state (reader);
    e_mail_reader_update_actions (reader, state);
}

static void
set_mail_display_part_list (GObject *object,
                            GAsyncResult *result,
                            gpointer user_data)
{
    EMailPartList *part_list;
    EMailReader *reader;
    EMailDisplay *display;

    reader = E_MAIL_READER (object);
    display = e_mail_reader_get_mail_display (reader);

    part_list = e_mail_reader_parse_message_finish (reader, result);

    e_mail_display_set_parts_list (display, part_list);
    e_mail_display_load (display, NULL);

    /* Remove the reference added when parts list was
     * created, so that only owners are EMailDisplays. */
    g_object_unref (part_list);
}

static void
mail_reader_set_display_formatter_for_message (EMailReader *reader,
                                               EMailDisplay *display,
                                               const gchar *message_uid,
                                               CamelMimeMessage *message,
                                               CamelFolder *folder)
{
    CamelObjectBag *registry;
    EMailPartList *parts;
    EMailReaderPrivate *priv;
    gchar *mail_uri;

    priv = E_MAIL_READER_GET_PRIVATE (reader);
    mail_uri = e_mail_part_build_uri (folder, message_uid, NULL, NULL);
    registry = e_mail_part_list_get_registry ();
    parts = camel_object_bag_peek (registry, mail_uri);
    g_free (mail_uri);

    if (parts == NULL) {
        e_mail_reader_parse_message (
            reader, folder, message_uid, message,
            priv->retrieving_message,
            set_mail_display_part_list, NULL);
    } else {
        e_mail_display_set_parts_list (display, parts);
        e_mail_display_load (display, NULL);
        g_object_unref (parts);
    }
}

static void
mail_reader_message_loaded (EMailReader *reader,
                            const gchar *message_uid,
                            CamelMimeMessage *message)
{
    EMailReaderPrivate *priv;
    GtkWidget *message_list;
    EMailBackend *backend;
    CamelFolder *folder;
    EMailDisplay *display;
    EShellBackend *shell_backend;
    EShell *shell;
    EMEvent *event;
    EMEventTargetMessage *target;
    GError *error = NULL;

    priv = E_MAIL_READER_GET_PRIVATE (reader);

    folder = e_mail_reader_get_folder (reader);
    backend = e_mail_reader_get_backend (reader);
    display = e_mail_reader_get_mail_display (reader);
    message_list = e_mail_reader_get_message_list (reader);

    shell_backend = E_SHELL_BACKEND (backend);
    shell = e_shell_backend_get_shell (shell_backend);

    /** @Event: message.reading
     * @Title: Viewing a message
     * @Target: EMEventTargetMessage
     *
     * message.reading is emitted whenever a user views a message.
     */
    event = em_event_peek ();
    target = em_event_target_new_message (
        event, folder, message, message_uid, 0, NULL);
    e_event_emit (
        (EEvent *) event, "message.reading",
        (EEventTarget *) target);

    mail_reader_set_display_formatter_for_message (
        reader, display, message_uid, message, folder);

    /* Reset the shell view icon. */
    e_shell_event (shell, "mail-icon", (gpointer) "evolution-mail");

    if (MESSAGE_LIST (message_list)->seen_id > 0) {
        g_source_remove (MESSAGE_LIST (message_list)->seen_id);
        MESSAGE_LIST (message_list)->seen_id = 0;
    }

    /* Determine whether to mark the message as read. */
    if (message != NULL &&
        !priv->restoring_message_selection &&
        !priv->avoid_next_mark_as_seen &&
        schedule_timeout_mark_seen (reader)) {
        g_clear_error (&error);
    } else if (error != NULL) {
        e_alert_submit (
            E_ALERT_SINK (display),
            "mail:no-retrieve-message",
            error->message, NULL);
        g_error_free (error);
    }

    priv->avoid_next_mark_as_seen = FALSE;
}

static void
mail_reader_message_seen (EMailReader *reader,
                          const gchar *message_uid,
                          CamelMimeMessage *message)
{
    CamelFolder *folder;
    guint32 mask, set;

    mask = CAMEL_MESSAGE_SEEN;
    set  = CAMEL_MESSAGE_SEEN;

    folder = e_mail_reader_get_folder (reader);
    camel_folder_set_message_flags (folder, message_uid, mask, set);
}

static void
mail_reader_show_search_bar (EMailReader *reader)
{
    EPreviewPane *preview_pane;

    preview_pane = e_mail_reader_get_preview_pane (reader);
    e_preview_pane_show_search_bar (preview_pane);
}

static void
mail_reader_update_actions (EMailReader *reader,
                            guint32 state)
{
    GtkAction *action;
    const gchar *action_name;
    gboolean sensitive;

    /* Be descriptive. */
    gboolean any_messages_selected;
    gboolean enable_flag_clear;
    gboolean enable_flag_completed;
    gboolean enable_flag_for_followup;
    gboolean have_enabled_account;
    gboolean multiple_messages_selected;
    gboolean selection_has_attachment_messages;
    gboolean selection_has_deleted_messages;
    gboolean selection_has_important_messages;
    gboolean selection_has_junk_messages;
    gboolean selection_has_not_junk_messages;
    gboolean selection_has_read_messages;
    gboolean selection_has_undeleted_messages;
    gboolean selection_has_unimportant_messages;
    gboolean selection_has_unread_messages;
    gboolean selection_is_mailing_list;
    gboolean single_message_selected;
    gboolean first_message_selected = FALSE;
    gboolean last_message_selected = FALSE;

    have_enabled_account =
        (state & E_MAIL_READER_HAVE_ENABLED_ACCOUNT);
    single_message_selected =
        (state & E_MAIL_READER_SELECTION_SINGLE);
    multiple_messages_selected =
        (state & E_MAIL_READER_SELECTION_MULTIPLE);
    /* FIXME Missing CAN_ADD_SENDER */
    enable_flag_clear =
        (state & E_MAIL_READER_SELECTION_FLAG_CLEAR);
    enable_flag_completed =
        (state & E_MAIL_READER_SELECTION_FLAG_COMPLETED);
    enable_flag_for_followup =
        (state & E_MAIL_READER_SELECTION_FLAG_FOLLOWUP);
    selection_has_attachment_messages =
        (state & E_MAIL_READER_SELECTION_HAS_ATTACHMENTS);
    selection_has_deleted_messages =
        (state & E_MAIL_READER_SELECTION_HAS_DELETED);
    selection_has_important_messages =
        (state & E_MAIL_READER_SELECTION_HAS_IMPORTANT);
    selection_has_junk_messages =
        (state & E_MAIL_READER_SELECTION_HAS_JUNK);
    selection_has_not_junk_messages =
        (state & E_MAIL_READER_SELECTION_HAS_NOT_JUNK);
    selection_has_read_messages =
        (state & E_MAIL_READER_SELECTION_HAS_READ);
    selection_has_undeleted_messages =
        (state & E_MAIL_READER_SELECTION_HAS_UNDELETED);
    selection_has_unimportant_messages =
        (state & E_MAIL_READER_SELECTION_HAS_UNIMPORTANT);
    selection_has_unread_messages =
        (state & E_MAIL_READER_SELECTION_HAS_UNREAD);
    selection_is_mailing_list =
        (state & E_MAIL_READER_SELECTION_IS_MAILING_LIST);

    any_messages_selected =
        (single_message_selected || multiple_messages_selected);

    if (any_messages_selected) {
        MessageList *message_list;
        gint row = -1, count = -1;
        ETreeTableAdapter *etta;
        ETreePath node = NULL;

        message_list = MESSAGE_LIST (
            e_mail_reader_get_message_list (reader));
        etta = e_tree_get_table_adapter (E_TREE (message_list));

        if (message_list->cursor_uid != NULL)
            node = g_hash_table_lookup (
                message_list->uid_nodemap,
                message_list->cursor_uid);

        if (node != NULL) {
            row = e_tree_table_adapter_row_of_node (etta, node);
            count = e_table_model_row_count (E_TABLE_MODEL (etta));
        }

        first_message_selected = row <= 0;
        last_message_selected = row < 0 || row + 1 >= count;
    }

    action_name = "mail-add-sender";
    sensitive = single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-check-for-junk";
    sensitive = any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-copy";
    sensitive = any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-create-menu";
    sensitive = single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    /* If a single message is selected, let the user hit delete to
     * advance the cursor even if the message is already deleted. */
    action_name = "mail-delete";
    sensitive =
        single_message_selected ||
        selection_has_undeleted_messages;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-filters-apply";
    sensitive = any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-find";
    sensitive = single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-flag-clear";
    sensitive = enable_flag_clear;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-flag-completed";
    sensitive = enable_flag_completed;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-flag-for-followup";
    sensitive = enable_flag_for_followup;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-forward";
    sensitive = have_enabled_account && any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-forward-attached";
    sensitive = have_enabled_account && any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-forward-attached-full";
    sensitive = have_enabled_account && any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-forward-as-menu";
    sensitive = have_enabled_account && any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-forward-inline";
    sensitive = have_enabled_account && single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-forward-inline-full";
    sensitive = have_enabled_account && single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-forward-quoted";
    sensitive = have_enabled_account && single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-forward-quoted-full";
    sensitive = have_enabled_account && single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-goto-menu";
    sensitive = any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-load-images";
    sensitive = single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-mark-as-menu";
    sensitive = any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-mark-important";
    sensitive = selection_has_unimportant_messages;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-mark-junk";
    sensitive =
        selection_has_not_junk_messages &&
        !(state & E_MAIL_READER_FOLDER_IS_JUNK);
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-mark-notjunk";
    sensitive = selection_has_junk_messages;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-mark-read";
    sensitive = selection_has_unread_messages;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-mark-unimportant";
    sensitive = selection_has_important_messages;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-mark-unread";
    sensitive = selection_has_read_messages;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-message-edit";
    sensitive = have_enabled_account && single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-message-new";
    sensitive = have_enabled_account;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-message-open";
    sensitive = any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-goto-folder";
    sensitive = e_mail_reader_get_enable_show_folder (reader);
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);
    gtk_action_set_visible (action, sensitive);

    action_name = "mail-goto-nexttab";
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, TRUE);
    gtk_action_set_visible (action, FALSE);

    action_name = "mail-goto-prevtab";
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, TRUE);
    gtk_action_set_visible (action, FALSE);

    action_name = "mail-close-tab";
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, TRUE);
    gtk_action_set_visible (action, FALSE);

    action_name = "mail-move";
    sensitive = any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-next";
    sensitive = any_messages_selected && !last_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-next-important";
    sensitive = single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-next-thread";
    sensitive = single_message_selected && !last_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-next-unread";
    sensitive = any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-previous";
    sensitive = any_messages_selected && !first_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-previous-important";
    sensitive = single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-previous-unread";
    sensitive = any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-previous-thread";
    sensitive = any_messages_selected && !first_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-print";
    sensitive = single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-print-preview";
    sensitive = single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-redirect";
    sensitive = have_enabled_account && single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-remove-attachments";
    sensitive = any_messages_selected && selection_has_attachment_messages;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-remove-duplicates";
    sensitive = multiple_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-reply-all";
    sensitive = have_enabled_account && single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-reply-group";
    sensitive = have_enabled_account && single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-reply-group-menu";
    sensitive = have_enabled_account && any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-reply-list";
    sensitive = have_enabled_account && single_message_selected &&
        selection_is_mailing_list;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-reply-sender";
    sensitive = have_enabled_account && single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-save-as";
    sensitive = any_messages_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-show-source";
    sensitive = single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-undelete";
    sensitive = selection_has_deleted_messages;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-zoom-100";
    sensitive = single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-zoom-in";
    sensitive = single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);

    action_name = "mail-zoom-out";
    sensitive = single_message_selected;
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, sensitive);
}

static void
mail_reader_init_charset_actions (EMailReader *reader,
                                  GtkActionGroup *action_group)
{
    GtkRadioAction *default_action;
    GSList *radio_group;

    radio_group = e_charset_add_radio_actions (
        action_group, "mail-charset-", NULL,
        G_CALLBACK (action_mail_charset_cb), reader);

    /* XXX Add a tooltip! */
    default_action = gtk_radio_action_new (
        "mail-charset-default", _("Default"), NULL, NULL, -1);

    gtk_radio_action_set_group (default_action, radio_group);

    g_signal_connect (
        default_action, "changed",
        G_CALLBACK (action_mail_charset_cb), reader);

    gtk_action_group_add_action (
        action_group, GTK_ACTION (default_action));

    gtk_radio_action_set_current_value (default_action, -1);
}

static void
e_mail_reader_default_init (EMailReaderInterface *interface)
{
    quark_private = g_quark_from_static_string ("e-mail-reader-private");

    interface->get_alert_sink = mail_reader_get_alert_sink;
    interface->get_selected_uids = mail_reader_get_selected_uids;
    interface->get_folder = mail_reader_get_folder;
    interface->enable_show_folder = mail_reader_get_enable_show_folder;
    interface->set_folder = mail_reader_set_folder;
    interface->set_message = mail_reader_set_message;
    interface->open_selected_mail = e_mail_reader_open_selected;
    interface->folder_loaded = mail_reader_folder_loaded;
    interface->message_loaded = mail_reader_message_loaded;
    interface->message_seen = mail_reader_message_seen;
    interface->show_search_bar = mail_reader_show_search_bar;
    interface->update_actions = mail_reader_update_actions;

    g_object_interface_install_property (
        interface,
        g_param_spec_enum (
            "forward-style",
            "Forward Style",
            "How to forward messages",
            E_TYPE_MAIL_FORWARD_STYLE,
            E_MAIL_FORWARD_STYLE_ATTACHED,
            G_PARAM_READWRITE));

    g_object_interface_install_property (
        interface,
        g_param_spec_boolean (
            "group-by-threads",
            "Group by Threads",
            "Whether to group messages by threads",
            FALSE,
            G_PARAM_READWRITE));

    g_object_interface_install_property (
        interface,
        g_param_spec_enum (
            "reply-style",
            "Reply Style",
            "How to reply to messages",
            E_TYPE_MAIL_REPLY_STYLE,
            E_MAIL_REPLY_STYLE_QUOTED,
            G_PARAM_READWRITE));

    signals[CHANGED] = g_signal_new (
        "changed",
        G_OBJECT_CLASS_TYPE (interface),
        G_SIGNAL_RUN_FIRST,
        0, NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[COMPOSER_CREATED] = g_signal_new (
        "composer-created",
        G_OBJECT_CLASS_TYPE (interface),
        G_SIGNAL_RUN_FIRST,
        G_STRUCT_OFFSET (EMailReaderInterface, composer_created),
        NULL, NULL, NULL,
        G_TYPE_NONE, 2,
        E_TYPE_MSG_COMPOSER,
        CAMEL_TYPE_MIME_MESSAGE);

    signals[FOLDER_LOADED] = g_signal_new (
        "folder-loaded",
        G_OBJECT_CLASS_TYPE (interface),
        G_SIGNAL_RUN_FIRST,
        G_STRUCT_OFFSET (EMailReaderInterface, folder_loaded),
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[MESSAGE_LOADED] = g_signal_new (
        "message-loaded",
        G_OBJECT_CLASS_TYPE (interface),
        G_SIGNAL_RUN_LAST,
        G_STRUCT_OFFSET (EMailReaderInterface, message_loaded),
        NULL, NULL,
        e_marshal_VOID__STRING_OBJECT,
        G_TYPE_NONE, 2,
        G_TYPE_STRING,
        CAMEL_TYPE_MIME_MESSAGE);

    signals[MESSAGE_SEEN] = g_signal_new (
        "message-seen",
        G_OBJECT_CLASS_TYPE (interface),
        G_SIGNAL_RUN_LAST,
        G_STRUCT_OFFSET (EMailReaderInterface, message_seen),
        NULL, NULL,
        e_marshal_VOID__STRING_OBJECT,
        G_TYPE_NONE, 2,
        G_TYPE_STRING,
        CAMEL_TYPE_MIME_MESSAGE);

    signals[SHOW_SEARCH_BAR] = g_signal_new (
        "show-search-bar",
        G_OBJECT_CLASS_TYPE (interface),
        G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (EMailReaderInterface, show_search_bar),
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[SHOW_FOLDER] = g_signal_new (
        "show-folder",
        G_OBJECT_CLASS_TYPE (interface),
        G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
        0,
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[SHOW_NEXTTAB] = g_signal_new (
        "show-next-tab",
        G_OBJECT_CLASS_TYPE (interface),
        G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
        0,
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[SHOW_PREVTAB] = g_signal_new (
        "show-previous-tab",
        G_OBJECT_CLASS_TYPE (interface),
        G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
        0,
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[CLOSE_TAB] = g_signal_new (
        "close-tab",
        G_OBJECT_CLASS_TYPE (interface),
        G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
        0,
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[UPDATE_ACTIONS] = g_signal_new (
        "update-actions",
        G_OBJECT_CLASS_TYPE (interface),
        G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (EMailReaderInterface, update_actions),
        NULL, NULL,
        g_cclosure_marshal_VOID__UINT,
        G_TYPE_NONE, 1,
        G_TYPE_UINT);
}

void
e_mail_reader_init (EMailReader *reader,
                    gboolean init_actions,
                    gboolean connect_signals)
{
    EMenuToolAction *menu_tool_action;
    GtkActionGroup *action_group;
    GtkWidget *message_list;
    GtkAction *action;
    gboolean sensitive;
    const gchar *action_name;
    EMailDisplay *display;
    GSettings *settings;

    g_return_if_fail (E_IS_MAIL_READER (reader));

    message_list = e_mail_reader_get_message_list (reader);
    display = e_mail_reader_get_mail_display (reader);

    /* Initialize a private struct. */
    g_object_set_qdata_full (
        G_OBJECT (reader), quark_private,
        g_slice_new0 (EMailReaderPrivate),
        (GDestroyNotify) mail_reader_private_free);

    if (!init_actions)
        goto connect_signals;

    /* Add the "standard" EMailReader actions. */

    action_group = e_mail_reader_get_action_group (
        reader, E_MAIL_READER_ACTION_GROUP_STANDARD);

    /* The "mail-forward" action is special: it uses a GtkMenuToolButton
     * for its toolbar item type.  So we have to create it separately. */

    menu_tool_action = e_menu_tool_action_new (
        "mail-forward", _("_Forward"),
        _("Forward the selected message to someone"), NULL);

    gtk_action_set_icon_name (
        GTK_ACTION (menu_tool_action), "mail-forward");

    g_signal_connect (
        menu_tool_action, "activate",
        G_CALLBACK (action_mail_forward_cb), reader);

    gtk_action_group_add_action_with_accel (
        action_group, GTK_ACTION (menu_tool_action), "<Control>f");

    /* Likewise the "mail-reply-group" action. */

    /* For Translators: "Group Reply" will reply either to a mailing list
     * (if possible and if that configuration option is enabled), or else
     * it will reply to all. The word "Group" was chosen because it covers
     * either of those, without too strongly implying one or the other. */
    menu_tool_action = e_menu_tool_action_new (
        "mail-reply-group", _("Group Reply"),
        _("Reply to the mailing list, or to all recipients"), NULL);

    gtk_action_set_icon_name (
        GTK_ACTION (menu_tool_action), "mail-reply-all");

    g_signal_connect (
        menu_tool_action, "activate",
        G_CALLBACK (action_mail_reply_group_cb), reader);

    gtk_action_group_add_action_with_accel (
        action_group, GTK_ACTION (menu_tool_action), "<Control>g");

    /* Add the other actions the normal way. */
    gtk_action_group_add_actions (
        action_group, mail_reader_entries,
        G_N_ELEMENTS (mail_reader_entries), reader);
    e_action_group_add_popup_actions (
        action_group, mail_reader_popup_entries,
        G_N_ELEMENTS (mail_reader_popup_entries));
    gtk_action_group_add_toggle_actions (
        action_group, mail_reader_toggle_entries,
        G_N_ELEMENTS (mail_reader_toggle_entries), reader);

    mail_reader_init_charset_actions (reader, action_group);

    /* Add EMailReader actions for Search Folders.  The action group
     * should be made invisible if Search Folders are disabled. */

    action_group = e_mail_reader_get_action_group (
        reader, E_MAIL_READER_ACTION_GROUP_SEARCH_FOLDERS);

    gtk_action_group_add_actions (
        action_group, mail_reader_search_folder_entries,
        G_N_ELEMENTS (mail_reader_search_folder_entries), reader);

    display = e_mail_reader_get_mail_display (reader);

    /* Bind GObject properties to GSettings keys. */

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

    action_name = "mail-caret-mode";
    action = e_mail_reader_get_action (reader, action_name);
    g_settings_bind (
        settings, "caret-mode",
        action, "active", G_SETTINGS_BIND_DEFAULT);

    action_name = "mail-show-all-headers";
    action = e_mail_reader_get_action (reader, action_name);
    g_settings_bind (
        settings, "show-all-headers",
        action, "active", G_SETTINGS_BIND_DEFAULT);

    /* Mode change when viewing message source is ignored. */
    if (e_mail_display_get_mode (display) == E_MAIL_FORMATTER_MODE_SOURCE ||
        e_mail_display_get_mode (display) == E_MAIL_FORMATTER_MODE_RAW) {
        gtk_action_set_sensitive (action, FALSE);
        gtk_action_set_visible (action, FALSE);
    }

    g_object_unref (settings);

    /* Fine tuning. */

    action_name = "mail-delete";
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_short_label (action, _("Delete"));

    action_name = "mail-forward";
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_is_important (action, TRUE);

    action_name = "mail-reply-group";
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_is_important (action, TRUE);

    action_name = "mail-goto-folder";
    action = e_mail_reader_get_action (reader, action_name);
    sensitive = e_mail_reader_get_enable_show_folder (reader);
    gtk_action_set_sensitive (action, sensitive);
    gtk_action_set_visible (action, FALSE);

    action_name = "mail-goto-nexttab";
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, TRUE);
    gtk_action_set_visible (action, FALSE);

    action_name = "mail-goto-prevtab";
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, TRUE);
    gtk_action_set_visible (action, FALSE);

    action_name = "mail-close-tab";
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_sensitive (action, TRUE);
    gtk_action_set_visible (action, FALSE);

    action_name = "mail-next";
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_short_label (action, _("Next"));

    action_name = "mail-previous";
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_short_label (action, _("Previous"));

    action_name = "mail-reply-all";
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_is_important (action, TRUE);

    action_name = "mail-reply-sender";
    action = e_mail_reader_get_action (reader, action_name);
    gtk_action_set_is_important (action, TRUE);
    gtk_action_set_short_label (action, _("Reply"));

    action_name = "add-to-address-book";
    action = e_mail_display_get_action (display, action_name);
    g_signal_connect (
        action, "activate",
        G_CALLBACK (action_add_to_address_book_cb), reader);

    action_name = "send-reply";
    action = e_mail_display_get_action (display, action_name);
    g_signal_connect (
        action, "activate",
        G_CALLBACK (action_mail_reply_recipient_cb), reader);

    action_name = "search-folder-recipient";
    action = e_mail_display_get_action (display, action_name);
    g_signal_connect (
        action, "activate",
        G_CALLBACK (action_search_folder_recipient_cb), reader);

    action_name = "search-folder-sender";
    action = e_mail_display_get_action (display, action_name);
    g_signal_connect (
        action, "activate",
        G_CALLBACK (action_search_folder_sender_cb), reader);

    action_name = "image-save";
    action = e_mail_display_get_action (display, action_name);
    g_signal_connect (
        action, "activate",
        G_CALLBACK (action_mail_image_save_cb), reader);

#ifndef G_OS_WIN32
    /* Lockdown integration. */

    settings = g_settings_new ("org.gnome.desktop.lockdown");

    action_name = "mail-print";
    action = e_mail_reader_get_action (reader, action_name);
    g_settings_bind (
        settings, "disable-printing",
        action, "visible",
        G_SETTINGS_BIND_GET |
        G_SETTINGS_BIND_NO_SENSITIVITY |
        G_SETTINGS_BIND_INVERT_BOOLEAN);

    action_name = "mail-print-preview";
    action = e_mail_reader_get_action (reader, action_name);
    g_settings_bind (
        settings, "disable-printing",
        action, "visible",
        G_SETTINGS_BIND_GET |
        G_SETTINGS_BIND_NO_SENSITIVITY |
        G_SETTINGS_BIND_INVERT_BOOLEAN);

    action_name = "mail-save-as";
    action = e_mail_reader_get_action (reader, action_name);
    g_settings_bind (
        settings, "disable-save-to-disk",
        action, "visible",
        G_SETTINGS_BIND_GET |
        G_SETTINGS_BIND_NO_SENSITIVITY |
        G_SETTINGS_BIND_INVERT_BOOLEAN);

    g_object_unref (settings);
#endif

    /* Bind properties. */

    action_name = "mail-caret-mode";
    action = e_mail_reader_get_action (reader, action_name);

    g_object_bind_property (
        action, "active",
        display, "caret-mode",
        G_BINDING_BIDIRECTIONAL |
        G_BINDING_SYNC_CREATE);

connect_signals:

    if (!connect_signals)
        return;

    /* Connect signals. */
    g_signal_connect_swapped (
        display, "key-press-event",
        G_CALLBACK (mail_reader_key_press_event_cb), reader);

    g_signal_connect_swapped (
        message_list, "message-selected",
        G_CALLBACK (mail_reader_message_selected_cb), reader);

    /* re-schedule mark-as-seen,... */
    g_signal_connect_swapped (
        message_list, "cursor-change",
        G_CALLBACK (mail_reader_message_cursor_change_cb), reader);

    /* but do not mark-as-seen if... */
    g_signal_connect_swapped (
        message_list, "tree-drag-begin",
        G_CALLBACK (discard_timeout_mark_seen_cb), reader);

    g_signal_connect_swapped (
        message_list, "tree-drag-end",
        G_CALLBACK (discard_timeout_mark_seen_cb), reader);

    g_signal_connect_swapped (
        message_list, "right-click",
        G_CALLBACK (discard_timeout_mark_seen_cb), reader);

    g_signal_connect_swapped (
        message_list, "message-list-built",
        G_CALLBACK (mail_reader_emit_folder_loaded), reader);

    g_signal_connect_swapped (
        message_list, "double-click",
        G_CALLBACK (mail_reader_double_click_cb), reader);

    g_signal_connect_swapped (
        message_list, "key-press",
        G_CALLBACK (mail_reader_key_press_cb), reader);

    g_signal_connect_swapped (
        message_list, "selection-change",
        G_CALLBACK (e_mail_reader_changed), reader);
}

void
e_mail_reader_changed (EMailReader *reader)
{
    g_return_if_fail (E_IS_MAIL_READER (reader));

    g_signal_emit (reader, signals[CHANGED], 0);
}

guint32
e_mail_reader_check_state (EMailReader *reader)
{
    EShell *shell;
    GPtrArray *uids;
    CamelFolder *folder;
    CamelStore *store = NULL;
    EMailBackend *backend;
    ESourceRegistry *registry;
    EMailSession *mail_session;
    EMailAccountStore *account_store;
    const gchar *tag;
    gboolean can_clear_flags = FALSE;
    gboolean can_flag_completed = FALSE;
    gboolean can_flag_for_followup = FALSE;
    gboolean has_attachments = FALSE;
    gboolean has_deleted = FALSE;
    gboolean has_important = FALSE;
    gboolean has_junk = FALSE;
    gboolean has_not_junk = FALSE;
    gboolean has_read = FALSE;
    gboolean has_undeleted = FALSE;
    gboolean has_unimportant = FALSE;
    gboolean has_unread = FALSE;
    gboolean have_enabled_account = FALSE;
    gboolean drafts_or_outbox = FALSE;
    gboolean store_supports_vjunk = FALSE;
    gboolean is_mailing_list;
    gboolean is_junk_folder = FALSE;
    guint32 state = 0;
    guint ii;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), 0);

    backend = e_mail_reader_get_backend (reader);
    shell = e_shell_backend_get_shell (E_SHELL_BACKEND (backend));
    registry = e_shell_get_registry (shell);
    mail_session = e_mail_backend_get_session (backend);
    account_store = e_mail_ui_session_get_account_store (
        E_MAIL_UI_SESSION (mail_session));

    folder = e_mail_reader_get_folder (reader);
    uids = e_mail_reader_get_selected_uids (reader);

    if (folder != NULL) {
        store = camel_folder_get_parent_store (folder);
        store_supports_vjunk = (store->flags & CAMEL_STORE_VJUNK);
        is_junk_folder =
            (folder->folder_flags & CAMEL_FOLDER_IS_JUNK) != 0;
        drafts_or_outbox =
            em_utils_folder_is_drafts (registry, folder) ||
            em_utils_folder_is_outbox (registry, folder);
    }

    /* Initialize this flag based on whether there are any
     * messages selected.  We will update it in the loop. */
    is_mailing_list = (uids->len > 0);

    for (ii = 0; ii < uids->len; ii++) {
        CamelMessageInfo *info;
        const gchar *string;
        guint32 flags;

        info = camel_folder_get_message_info (
            folder, uids->pdata[ii]);
        if (info == NULL)
            continue;

        flags = camel_message_info_flags (info);

        if (flags & CAMEL_MESSAGE_SEEN)
            has_read = TRUE;
        else
            has_unread = TRUE;

        if (flags & CAMEL_MESSAGE_ATTACHMENTS)
            has_attachments = TRUE;

        if (drafts_or_outbox) {
            has_junk = FALSE;
            has_not_junk = FALSE;
        } else if (store_supports_vjunk) {
            guint32 bitmask;

            /* XXX Strictly speaking, this logic is correct.
             *     Problem is there's nothing in the message
             *     list that indicates whether a message is
             *     already marked "Not Junk".  So the user may
             *     think the "Not Junk" button is enabling and
             *     disabling itself randomly as he reads mail. */

            if (flags & CAMEL_MESSAGE_JUNK)
                has_junk = TRUE;
            if (flags & CAMEL_MESSAGE_NOTJUNK)
                has_not_junk = TRUE;

            bitmask = CAMEL_MESSAGE_JUNK | CAMEL_MESSAGE_NOTJUNK;

            /* If neither junk flag is set, the
             * message can be marked either way. */
            if ((flags & bitmask) == 0) {
                has_junk = TRUE;
                has_not_junk = TRUE;
            }

        } else {
            has_junk = TRUE;
            has_not_junk = TRUE;
        }

        if (flags & CAMEL_MESSAGE_DELETED)
            has_deleted = TRUE;
        else
            has_undeleted = TRUE;

        if (flags & CAMEL_MESSAGE_FLAGGED)
            has_important = TRUE;
        else
            has_unimportant = TRUE;

        tag = camel_message_info_user_tag (info, "follow-up");
        if (tag != NULL && *tag != '\0') {
            can_clear_flags = TRUE;
            tag = camel_message_info_user_tag (
                info, "completed-on");
            if (tag == NULL || *tag == '\0')
                can_flag_completed = TRUE;
        } else
            can_flag_for_followup = TRUE;

        string = camel_message_info_mlist (info);
        is_mailing_list &= (string != NULL && *string != '\0');

        camel_folder_free_message_info (folder, info);
    }

    have_enabled_account =
        e_mail_account_store_have_enabled_service (
        account_store, CAMEL_TYPE_STORE);

    if (have_enabled_account)
        state |= E_MAIL_READER_HAVE_ENABLED_ACCOUNT;
    if (uids->len == 1)
        state |= E_MAIL_READER_SELECTION_SINGLE;
    if (uids->len > 1)
        state |= E_MAIL_READER_SELECTION_MULTIPLE;
    if (!drafts_or_outbox && uids->len == 1)
        state |= E_MAIL_READER_SELECTION_CAN_ADD_SENDER;
    if (can_clear_flags)
        state |= E_MAIL_READER_SELECTION_FLAG_CLEAR;
    if (can_flag_completed)
        state |= E_MAIL_READER_SELECTION_FLAG_COMPLETED;
    if (can_flag_for_followup)
        state |= E_MAIL_READER_SELECTION_FLAG_FOLLOWUP;
    if (has_attachments)
        state |= E_MAIL_READER_SELECTION_HAS_ATTACHMENTS;
    if (has_deleted)
        state |= E_MAIL_READER_SELECTION_HAS_DELETED;
    if (has_important)
        state |= E_MAIL_READER_SELECTION_HAS_IMPORTANT;
    if (has_junk)
        state |= E_MAIL_READER_SELECTION_HAS_JUNK;
    if (has_not_junk)
        state |= E_MAIL_READER_SELECTION_HAS_NOT_JUNK;
    if (has_read)
        state |= E_MAIL_READER_SELECTION_HAS_READ;
    if (has_undeleted)
        state |= E_MAIL_READER_SELECTION_HAS_UNDELETED;
    if (has_unimportant)
        state |= E_MAIL_READER_SELECTION_HAS_UNIMPORTANT;
    if (has_unread)
        state |= E_MAIL_READER_SELECTION_HAS_UNREAD;
    if (is_mailing_list)
        state |= E_MAIL_READER_SELECTION_IS_MAILING_LIST;
    if (is_junk_folder)
        state |= E_MAIL_READER_FOLDER_IS_JUNK;

    em_utils_uids_free (uids);

    return state;
}

EActivity *
e_mail_reader_new_activity (EMailReader *reader)
{
    EActivity *activity;
    EMailBackend *backend;
    EAlertSink *alert_sink;
    GCancellable *cancellable;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), NULL);

    activity = e_activity_new ();

    alert_sink = e_mail_reader_get_alert_sink (reader);
    e_activity_set_alert_sink (activity, alert_sink);

    cancellable = camel_operation_new ();
    e_activity_set_cancellable (activity, cancellable);
    g_object_unref (cancellable);

    backend = e_mail_reader_get_backend (reader);
    e_shell_backend_add_activity (E_SHELL_BACKEND (backend), activity);

    return activity;
}

void
e_mail_reader_update_actions (EMailReader *reader,
                              guint32 state)
{
    g_return_if_fail (E_IS_MAIL_READER (reader));

    g_signal_emit (reader, signals[UPDATE_ACTIONS], 0, state);
}

GtkAction *
e_mail_reader_get_action (EMailReader *reader,
                          const gchar *action_name)
{
    GtkAction *action = NULL;
    gint ii;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), NULL);
    g_return_val_if_fail (action_name != NULL, NULL);

    for (ii = 0; ii < E_MAIL_READER_NUM_ACTION_GROUPS; ii++) {
        GtkActionGroup *group;

        group = e_mail_reader_get_action_group (reader, ii);
        action = gtk_action_group_get_action (group, action_name);

        if (action != NULL)
            break;
    }

    if (action == NULL)
        g_critical (
            "%s: action '%s' not found", G_STRFUNC, action_name);

    return action;
}

GtkActionGroup *
e_mail_reader_get_action_group (EMailReader *reader,
                                EMailReaderActionGroup group)
{
    EMailReaderInterface *interface;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), NULL);

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_val_if_fail (interface->get_action_group != NULL, NULL);

    return interface->get_action_group (reader, group);
}

EAlertSink *
e_mail_reader_get_alert_sink (EMailReader *reader)
{
    EMailReaderInterface *interface;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), NULL);

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_val_if_fail (interface->get_alert_sink != NULL, NULL);

    return interface->get_alert_sink (reader);
}

EMailBackend *
e_mail_reader_get_backend (EMailReader *reader)
{
    EMailReaderInterface *interface;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), NULL);

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_val_if_fail (interface->get_backend != NULL, NULL);

    return interface->get_backend (reader);
}

EMailDisplay *
e_mail_reader_get_mail_display (EMailReader *reader)
{
    EMailReaderInterface *interface;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), NULL);

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_val_if_fail (interface->get_mail_display != NULL, NULL);

    return interface->get_mail_display (reader);
}

gboolean
e_mail_reader_get_hide_deleted (EMailReader *reader)
{
    EMailReaderInterface *interface;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), FALSE);

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_val_if_fail (interface->get_hide_deleted != NULL, FALSE);

    return interface->get_hide_deleted (reader);
}

GtkWidget *
e_mail_reader_get_message_list (EMailReader *reader)
{
    EMailReaderInterface *interface;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), NULL);

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_val_if_fail (interface->get_message_list != NULL, NULL);

    return interface->get_message_list (reader);
}

GtkMenu *
e_mail_reader_get_popup_menu (EMailReader *reader)
{
    EMailReaderInterface *interface;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), NULL);

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_val_if_fail (interface->get_popup_menu != NULL, NULL);

    return interface->get_popup_menu (reader);
}

EPreviewPane *
e_mail_reader_get_preview_pane (EMailReader *reader)
{
    EMailReaderInterface *interface;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), NULL);

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_val_if_fail (interface->get_preview_pane != NULL, NULL);

    return interface->get_preview_pane (reader);
}

GPtrArray *
e_mail_reader_get_selected_uids (EMailReader *reader)
{
    EMailReaderInterface *interface;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), NULL);

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_val_if_fail (interface->get_selected_uids != NULL, NULL);

    return interface->get_selected_uids (reader);
}

GtkWindow *
e_mail_reader_get_window (EMailReader *reader)
{
    EMailReaderInterface *interface;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), NULL);

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_val_if_fail (interface->get_window != NULL, NULL);

    return interface->get_window (reader);
}

CamelFolder *
e_mail_reader_get_folder (EMailReader *reader)
{
    EMailReaderInterface *interface;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), NULL);

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_val_if_fail (interface->get_folder != NULL, NULL);

    return interface->get_folder (reader);
}

void
e_mail_reader_set_folder (EMailReader *reader,
                          CamelFolder *folder)
{
    EMailReaderInterface *interface;

    g_return_if_fail (E_IS_MAIL_READER (reader));

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_if_fail (interface->set_folder != NULL);

    interface->set_folder (reader, folder);
}

void
e_mail_reader_set_message (EMailReader *reader,
                           const gchar *message_uid)
{
    EMailReaderInterface *interface;

    g_return_if_fail (E_IS_MAIL_READER (reader));

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_if_fail (interface->set_message != NULL);

    interface->set_message (reader, message_uid);
}

guint
e_mail_reader_open_selected_mail (EMailReader *reader)
{
    EMailReaderInterface *interface;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), 0);

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_val_if_fail (interface->open_selected_mail != NULL, 0);

    return interface->open_selected_mail (reader);
}

EMailForwardStyle
e_mail_reader_get_forward_style (EMailReader *reader)
{
    EMailReaderPrivate *priv;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), 0);

    priv = E_MAIL_READER_GET_PRIVATE (reader);

    return priv->forward_style;
}

void
e_mail_reader_set_forward_style (EMailReader *reader,
                                 EMailForwardStyle style)
{
    EMailReaderPrivate *priv;

    g_return_if_fail (E_IS_MAIL_READER (reader));

    priv = E_MAIL_READER_GET_PRIVATE (reader);

    if (priv->forward_style == style)
        return;

    priv->forward_style = style;

    g_object_notify (G_OBJECT (reader), "forward-style");
}

gboolean
e_mail_reader_get_group_by_threads (EMailReader *reader)
{
    EMailReaderPrivate *priv;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), FALSE);

    priv = E_MAIL_READER_GET_PRIVATE (reader);

    return priv->group_by_threads;
}

void
e_mail_reader_set_group_by_threads (EMailReader *reader,
                                    gboolean group_by_threads)
{
    EMailReaderPrivate *priv;
    GtkWidget *message_list;

    g_return_if_fail (E_IS_MAIL_READER (reader));

    priv = E_MAIL_READER_GET_PRIVATE (reader);

    if (priv->group_by_threads == group_by_threads)
        return;

    priv->group_by_threads = group_by_threads;

    /* XXX MessageList should define a property for this. */
    message_list = e_mail_reader_get_message_list (reader);
    message_list_set_threaded (
        MESSAGE_LIST (message_list), group_by_threads);

    g_object_notify (G_OBJECT (reader), "group-by-threads");
}

EMailReplyStyle
e_mail_reader_get_reply_style (EMailReader *reader)
{
    EMailReaderPrivate *priv;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), 0);

    priv = E_MAIL_READER_GET_PRIVATE (reader);

    return priv->reply_style;
}

void
e_mail_reader_set_reply_style (EMailReader *reader,
                               EMailReplyStyle style)
{
    EMailReaderPrivate *priv;

    g_return_if_fail (E_IS_MAIL_READER (reader));

    priv = E_MAIL_READER_GET_PRIVATE (reader);

    if (priv->reply_style == style)
        return;

    priv->reply_style = style;

    g_object_notify (G_OBJECT (reader), "reply-style");
}

void
e_mail_reader_create_charset_menu (EMailReader *reader,
                                   GtkUIManager *ui_manager,
                                   guint merge_id)
{
    GtkAction *action;
    const gchar *action_name;
    const gchar *path;
    GSList *list;

    g_return_if_fail (E_IS_MAIL_READER (reader));
    g_return_if_fail (GTK_IS_UI_MANAGER (ui_manager));

    action_name = "mail-charset-default";
    action = e_mail_reader_get_action (reader, action_name);
    g_return_if_fail (action != NULL);

    list = gtk_radio_action_get_group (GTK_RADIO_ACTION (action));
    list = g_slist_copy (list);
    list = g_slist_remove (list, action);
    list = g_slist_sort (list, (GCompareFunc) e_action_compare_by_label);

    path = "/main-menu/view-menu/mail-message-view-actions/mail-encoding-menu";

    while (list != NULL) {
        action = list->data;

        gtk_ui_manager_add_ui (
            ui_manager, merge_id, path,
            gtk_action_get_name (action),
            gtk_action_get_name (action),
            GTK_UI_MANAGER_AUTO, FALSE);

        list = g_slist_delete_link (list, list);
    }

    gtk_ui_manager_ensure_update (ui_manager);
}

void
e_mail_reader_show_search_bar (EMailReader *reader)
{
    g_return_if_fail (E_IS_MAIL_READER (reader));

    g_signal_emit (reader, signals[SHOW_SEARCH_BAR], 0);
}

void
e_mail_reader_enable_show_folder (EMailReader *reader)
{
    CamelFolder *folder;
    GtkAction *action;
    const gchar *action_name;
    const gchar *full_name;
    gboolean sensitive;
    gchar *label;

    g_return_if_fail (E_IS_MAIL_READER (reader));

    folder = e_mail_reader_get_folder (reader);

    full_name = camel_folder_get_full_name (folder);
    label = g_strdup_printf (_("Folder '%s'"), full_name);

    action_name = "mail-goto-folder";
    action = e_mail_reader_get_action (reader, action_name);
    sensitive = e_mail_reader_get_enable_show_folder (reader);
    gtk_action_set_label (action, label);
    gtk_action_set_visible (action, TRUE);
    gtk_action_set_sensitive (action, sensitive);

    g_free (label);
}

gboolean
e_mail_reader_get_enable_show_folder (EMailReader *reader)
{
    EMailReaderInterface *interface;

    g_return_val_if_fail (E_IS_MAIL_READER (reader), FALSE);

    interface = E_MAIL_READER_GET_INTERFACE (reader);
    g_return_val_if_fail (interface->enable_show_folder != NULL, FALSE);

    return interface->enable_show_folder (reader);
}

void
e_mail_reader_avoid_next_mark_as_seen (EMailReader *reader)
{
    EMailReaderPrivate *priv;
    MessageList *message_list;

    g_return_if_fail (reader != NULL);

    priv = E_MAIL_READER_GET_PRIVATE (reader);
    g_return_if_fail (priv != NULL);

    message_list = MESSAGE_LIST (e_mail_reader_get_message_list (reader));
    g_return_if_fail (message_list != NULL);

    priv->avoid_next_mark_as_seen = TRUE;
}

/**
 * e_mail_reader_composer_created:
 * @reader: an #EMailReader
 * @composer: an #EMsgComposer
 * @message: the source #CamelMimeMessage, or %NULL
 *
 * Emits a #EMailReader::composer-created signal to indicate the @composer
 * window was created in response to a user action on @reader.  Examples of
 * such actions include replying, forwarding, and composing a new message.
 * If applicable, the source @message (i.e. the message being replied to or
 * forwarded) should be included.
 **/
void
e_mail_reader_composer_created (EMailReader *reader,
                                EMsgComposer *composer,
                                CamelMimeMessage *message)
{
    g_return_if_fail (E_IS_MAIL_READER (reader));
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));

    if (message != NULL)
        g_return_if_fail (CAMEL_IS_MIME_MESSAGE (message));

    g_signal_emit (
        reader, signals[COMPOSER_CREATED], 0, composer, message);
}