window.rcmail && window.rcmail.addEventListener('init', function() {
    if (rcmail.env.task === 'settings'
        && rcmail.env.action === 'plugin.inbox_keys') {
        if (rcmail.gui_objects.keyslist) {
            rcmail.inbox_keys_list = new rcube_list_widget(
                rcmail.gui_objects.keyslist,
                {multiselect: true, draggable: false, keyboard: true});
            rcmail.inbox_keys_list
                .addEventListener('select', list => rcmail.inbox_keys_select(list))
                .addEventListener('keypress',
                    list => rcmail.list_keypress(list, {del: 'plugin.inbox_keys_delete'}))
                .init()
                .focus();
        }

        rcmail.register_command('plugin.inbox_keys_generate', () => rcmail.inbox_keys_generate(), true);
        rcmail.register_command('plugin.inbox_keys_import', () => rcmail.inbox_keys_import(), true);
        rcmail.register_command('plugin.inbox_keys_delete', () => rcmail.inbox_keys_delete(), false);
    }
});

rcube_webmail.prototype.inbox_keys_select = function(list) {
    this.enable_command('plugin.inbox_keys_delete', list.get_selection().length > 0);
};

rcube_webmail.prototype.inbox_keys_generate = function() {
    this.goto_url('plugin.inbox_keys_generate');
};

rcube_webmail.prototype.inbox_keys_import = function() {
    this.goto_url('plugin.inbox_keys_import');
};

rcube_webmail.prototype.inbox_keys_delete = function() {
    var keys = this.inbox_keys_list.get_selection();
    if (!keys.length) return;

    this.confirm_dialog(
        this.get_label('inbox_settings.confirm_delete_key'),
        'delete',
        function(_evt, ref) {
            var lock = ref.display_message(
                ref.get_label('inbox_settings.deleting_key', 'loading'));
            ref.addEventListener('responseafter', () => ref.reload());
            ref.http_post('plugin.inbox_keys_delete', {keys}, lock);
        });
};

rcube_webmail.prototype.inbox_keys_loadframe = function(url) {
    var win;
    if (win = this.get_frame_window(this.env.contentframe)) {
        if (!url) {
            if (win.location && win.location.href.indexOf(this.env.blankpage) < 0) {
                win.location.href = this.env.blankpage;
            }
            if (this.env.frame_lock) {
                this.set_busy(false, null, this.env.frame_lock);
            }
            return;
        }

        this.env.frame_lock = this.set_busy(true, 'loading');
        win.location.href = this.env.comm_path + '&_framed=1' + url;
    }
};