/*!
* jquery.plugin.menuTree.js v0.8
* Copyright 2010, Bill Heaton http://pixelhandler.com
*
* Requires jquery version 1.4
* http://jquery.com/
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://docs.jquery.com/License
*
* Sat May 8 1:42 GMT-8:00
*/

(function ($) {
    $.fn.menuTree = function (options) {
        // extend default options with aruments on function call
        var opts = $.extend({}, $.fn.menuTree.defaults, options);

        // default options
        $.fn.menuTree.defaults = {
            // setup animation
            animation: false,
            handler: 'css',
            speed: 'fast',
            // setup hooks in markup
            listElement: 'ul',
            anchor: 'a[href^="#"]'
        };

        // tree behavior only operates on anchor elements in the list that begin with a hash '#' unless options called for
        $.fn.menuTree.mtParent = $(this);
        $.fn.menuTree.mtTargets = $.fn.menuTree.mtParent.find(opts.anchor);
        function reveal(element) {
            var $reveal = $(element);
            // select targets to reveal based on options we choose what list element to target default is 'ul'
            switch (opts.listElement) {
                case "dd":
                    $reveal.mtReveal = $reveal.parent().next(opts.listElement);
                    break;
                case "ol":
                    $reveal.mtReveal = $reveal.next(opts.listElement);
                    break;
                default:
                    $reveal.mtReveal = $reveal.next(opts.listElement);
            }
            return $reveal.mtReveal;
        }

        // do the magic with the click event ...
        function clickHandler(event) {
            var $target = $(event.target).closest('a', 'li');
            if (0 === $target.size()) {
                $target = $(event.target);
            }
            if (opts.trace) {
                $.fn.menuTree.msg = $target.text() + ": responsive, " + $target.data('responsive') + ", " + opts.handler;
                $.fn.tracer.log($.fn.menuTree.msg);
            }
            // if data value is not ready bail out
            if (!$target.data('responsive')) {
                return;
            }
            event.preventDefault();
            $target.stop();

            // choose your animation behavior based on options passed to plugin instance
            if (!opts.animation) {
                // false uses CSS to handle effects
                reveal($target).toggleClass('collapsed');
                $target.toggleClass('expanded').data('state', 'ready').trigger('statechange');
            } else {
                // true uses opts.handler to choose effects
                $target.data('state', 'transition').trigger('statechange');


                //max@positioner: chiudi tutto
                if (($target.hasClass('expanded') == false)) {
                    $target.parents().parents().find('ul.sub').hide(function () {
                        $('ul#mainMenu').find('a.expanded').not($target).removeClass('expanded');
                    });
                }


                switch (opts.handler) {
                    case "slideToggle":
                        reveal($target).slideToggle(opts.speed, function () {
                            $(this).prev('.menuTree').toggleClass('expanded').blur().data('state', 'ready').trigger('statechange');
                        }).toggleClass('collapsed');
                        break;
                    case "toggle":
                        reveal($target).toggle(opts.speed, function () {
                            $(this).prev('.menuTree').toggleClass('expanded').data('state', 'ready').trigger('statechange');
                        }).toggleClass('collapsed');
                        break;
                    default:
                        // css only, but if called with true we should do something
                }
            }
        }

        // set up listener controller function
        // used to prevent multiple clicks, click event is disabled during animation
        $.fn.menuTree.controller = function (event) {
            var $target = $(event.target);
            // manage link state
            if ($target.data('state') != 'ready') {
                $target.data('responsive', false);
            } else {
                $target.data('responsive', true);
                // may need to collapse children
                if ($target.next(opts.listElement).find('.expanded').length > 0) {
                    $target.next(opts.listElement).find('.expanded').each(function () {
                        $(this).removeClass('expanded').next(opts.listElement).hide().addClass('collapsed');
                        if (opts.trace) {
                            $.fn.menuTree.msg = 'collapsed child';
                            $.fn.tracer.log($.fn.menuTree.msg);
                        }
                    });
                }
            }
        };

        // setup tree behavior and bind on controller
        $.fn.menuTree.init = (function () {

            $.fn.menuTree.mtTargets.each(function () {

                var $localTarget = $(this);
                $localTarget.data({
                    state: 'ready',
                    responsive: true
                });
                // set behavior up on all .menuTree anchors create with plugin
                $localTarget.addClass('menuTree');

                // hide the child elements to reveal later // $.fn.menuTree.
                reveal($localTarget).toggleClass('collapsed');

                // set Click event handler for targets
                //$localTarget.click(clickHandler); // no event delegation
                $.fn.menuTree.mtParent.click(clickHandler);

                // bind the Controller to listen for state change on
                $.fn.menuTree.mtParent.bind('statechange', $.fn.menuTree.controller);

                // trace setup if option is called as true uses 'tracer' plugin
                if (opts.trace) {
                    $.fn.menuTree.msg = "option :";
                    $.fn.menuTree.msg += opts.hrefBegins;
                    $.fn.menuTree.msg += ", animation: " + opts.animation;
                    $.fn.tracer.log($.fn.menuTree.msg);
                    $.fn.menuTree.msg = opts.listElement + ": ";
                    $.fn.menuTree.msg = $localTarget.text().substr(0, 21) + "...";
                    $.fn.menuTree.msg += $localTarget.data('state') + ", responsive: ";
                    $.fn.menuTree.msg += $localTarget.data('responsive');
                    $.fn.tracer.log($.fn.menuTree.msg);
                }

            });
        });

        return $.fn.menuTree.init();

    };
})(jQuery);