/**

 * Functions for ajax boxes.

 *

 *  :organization: Logilab

 *  :copyright: 2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

 *  :contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr

 *

 */

function ajaxBoxValidateSelectorInput(boxid, eid, separator, fname, msg) {

    var holderid = cw.utils.domid(boxid) + eid + 'Holder';

    var value = $('#' + holderid + 'Input').val();

    if (separator) {

        value = $.map(value.split(separator), jQuery.trim);

    }

    var d = loadRemote(AJAX_BASE_URL, ajaxFuncArgs(fname, null, eid, value));

    d.addCallback(function() {

            $('#' + holderid).empty();

            var formparams = ajaxFuncArgs('render', null, 'ctxcomponents', boxid, eid);

            $('#' + cw.utils.domid(boxid) + eid).loadxhtml(AJAX_BASE_URL, formparams, null, 'swap');

            if (msg) {

                document.location.hash = '#header';

                updateMessage(msg);

            }

        });

}

function ajaxBoxRemoveLinkedEntity(boxid, eid, relatedeid, delfname, msg) {

    var d = loadRemote(AJAX_BASE_URL, ajaxFuncArgs(delfname, null, eid, relatedeid));

    d.addCallback(function() {

            var formparams = ajaxFuncArgs('render', null, 'ctxcomponents', boxid, eid);

            $('#' + cw.utils.domid(boxid) + eid).loadxhtml(AJAX_BASE_URL, formparams, null, 'swap');

            if (msg) {

                document.location.hash = '#header';

                updateMessage(msg);

            }

    });

}

/**

 * .. function:: ajaxBoxShowSelector(boxid, eid, unrelfname,

 *                                  addfname, msg,

 *                                  oklabel, cancellabel,

 *                                  separator=None)

 *

 * Display an ajax selector within a box of regid `boxid`, for entity with eid

 * `eid`.

 *

 * Other parameters are:

 *

 * * `addfname`, name of the json controller method to call to add a relation

 *

 * * `msg`, message to display to the user when a relation has been added

 *

 * * `oklabel`/`cancellabel`, OK/cancel buttons label

 *

 * * `separator`, items separator if the field is multi-valued (will be

 *   considered mono-valued when not specified)

 */

function ajaxBoxShowSelector(boxid, eid,

                             unrelfname,

                             addfname, msg,

                             oklabel, cancellabel,

                             separator) {

    var holderid = cw.utils.domid(boxid) + eid + 'Holder';

    var holder = $('#' + holderid);

    if (holder.children().length) {

        holder.empty();

    }

    else {

        var inputid = holderid + 'Input';

        var deferred = loadRemote(AJAX_BASE_URL, ajaxFuncArgs(unrelfname, null, eid));

        deferred.addCallback(function (unrelated) {

            var input = INPUT({'type': 'text', 'id': inputid, 'size': 20});

            holder.append(input).show();

            var $input = $(input);

            $input.keypress(function (evt) {

                if (evt.keyCode == $.ui.keyCode.ENTER) {

                    ajaxBoxValidateSelectorInput(boxid, eid, separator, addfname, msg);

                }

            });

            $input.cwautocomplete(unrelated, {multiple: Boolean(separator)});

            var buttons = DIV({'class' : "sgformbuttons"},

                              A({href : "javascript: $.noop();",

                                 onclick : cw.utils.strFuncCall('ajaxBoxValidateSelectorInput',

                                                                boxid, eid, separator, addfname, msg)},

                                oklabel),

                              ' / ',

                              A({'href' : "javascript: $.noop();",

                                 'onclick' : '$("#' + holderid + '").empty()'},

                                  cancellabel));

            holder.append(buttons);

            $input.focus();

        });

    }

}