/*
* This file is part of Toolkit.
*
* Toolkit is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* Toolkit 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 General
* Public License along with this program; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
"use strict";
(function (w, TK) {
TK.List = TK.class({
/**
* TK.List is a sortable {@link TK.Container} for {@TK.ListItems}s.
* the element is a UL instead of a DIV.
*
* @param {Object} [options={ }] - An object containing initial options.
*
* @property {Function|Boolean} [options.sort=false] - A function
* expecting arguments A and B, returning a number <0, if A comes first and >0,
* if B comes first. 0 keeps both elements in place. Please refer to the
* compareFunction at <a href="https://www.w3schools.com/jsref/jsref_sort.asp">W3Schools</a>
* for any further information.
*
* @class TK.List
*
* @extends TK.Container
*/
_options: Object.assign(Object.create(TK.Container.prototype._options), {
sort: "function",
}),
_class: "List",
Extends: TK.Container,
initialize: function (options) {
this.element = TK.element("ul", "toolkit-list");
TK.Container.prototype.initialize.call(this, options);
},
static_events: {
set_sort: function(f) {
if (typeof(f) === "function") {
var C = this.children.slice(0);
C.sort(f);
for (var i = 0; i < C.length; i++) {
this.element.appendChild(C[i].element);
}
}
},
},
append_child: function(w) {
TK.Container.prototype.append_child.call(this, w);
var O = this.options;
var C = this.children;
if (O.sort) {
C.sort(O.sort);
var pos = C.indexOf(w);
if (pos !== C.length - 1)
this.element.insertBefore(w.element, C[pos+1].element);
}
},
});
})(this, this.TK);