(function() {

var Dom = YAHOO.util.Dom;
var Event = YAHOO.util.Event;
var DDM = YAHOO.util.DragDropMgr;

var DDTarget = 'ul_forumhome';

//////////////////////////////////////////////////////////////////////////////
// JOL Drag & Drop
//////////////////////////////////////////////////////////////////////////////
YAHOO.example.DDApp = {
    init: function() {

        var i,j;

        new YAHOO.util.DDTarget(DDTarget);

		var u = document.getElementById(DDTarget);
		var l = u.getElementsByTagName('li');
        for (j=0; j<l.length; j++) {
        	id = l[j].id;
            new YAHOO.example.DDList(id);
            var newid = id.replace(/li_forumbit_/, '', id);
            YAHOO.util.Event.addListener('a_toggle_forumbit_' + newid, 'click', jol_toggle_callback);
        }
    },

    saveOrder: function() {
        var parseList = function(ul) {
            var items = ul.getElementsByTagName("li");
            var out = '';
            var id = '';
            for (i=0;i<items.length;i=i+1) {
                if (out != '') out += '|';
                id = items[i].id;
                id = id.replace(/li_forumbit_/, '', id);
                out += id;
            }
            return out;
        };

        var ul1=Dom.get(DDTarget);
        var value = parseList(ul1);

        var expires = new Date();
        expires.setTime(expires.getTime()+(1000*86400*365));
        set_cookie('list-ul_forumhome', value, expires);
    }
}

YAHOO.example.DDList = function(id, sGroup, config) {

    YAHOO.example.DDList.superclass.constructor.call(this, id, sGroup, config);

    var el = this.getDragEl();
    Dom.setStyle(el, "opacity", 0.67); // The proxy is slightly transparent

    this.goingUp = false;
    this.lastY = 0;

    this.setXConstraint(0, 0);
    var newId = id.replace(/li/, '', id);
    this.setHandleElId('td' + newId);
}

YAHOO.extend(YAHOO.example.DDList, YAHOO.util.DDProxy, {

    startDrag: function(x, y) {
        // make the proxy look like the source element
        var dragEl = this.getDragEl();
        var clickEl = this.getEl();
        Dom.setStyle(clickEl, "visibility", "hidden");

        dragEl.innerHTML = clickEl.innerHTML;

        Dom.setStyle(dragEl, "color", Dom.getStyle(clickEl, "color"));
        Dom.setStyle(dragEl, "backgroundColor", Dom.getStyle(clickEl, "backgroundColor"));
        Dom.setStyle(dragEl, "border", "1px dashed black");
    },

    endDrag: function(e) {

        var srcEl = this.getEl();
        var proxy = this.getDragEl();

        // Show the proxy element and animate it to the src element's location
        Dom.setStyle(proxy, "visibility", "");
        var a = new YAHOO.util.Motion(
            proxy, {
                points: {
                    to: Dom.getXY(srcEl)
                }
            },
            0.05,
            YAHOO.util.Easing.easeOut
        )
        var proxyid = proxy.id;
        var thisid = this.id;

        // Hide the proxy and show the source element when finished with the animation
        a.onComplete.subscribe(function() {
                Dom.setStyle(proxyid, "visibility", "hidden");
                Dom.setStyle(thisid, "visibility", "");
            });
        a.animate();
        YAHOO.example.DDApp.saveOrder();

        // On vire le proxy
        proxy.innerHTML = '';
    },

    onDragDrop: function(e, id) {

        // If there is one drop interaction, the li was dropped either on the list,
        // or it was dropped on the current location of the source element.
        if (DDM.interactionInfo.drop.length === 1) {

            // The position of the cursor at the time of the drop (YAHOO.util.Point)
            var pt = DDM.interactionInfo.point;

            // The region occupied by the source element at the time of the drop
            var region = DDM.interactionInfo.sourceRegion;

            // Check to see if we are over the source element's location.  We will
            // append to the bottom of the list once we are sure it was a drop in
            // the negative space (the area of the list without any list items)
            if (!region.intersect(pt)) {
                var destEl = Dom.get(id);
                var destDD = DDM.getDDById(id);
                destEl.appendChild(this.getEl());
                destDD.isEmpty = false;
                DDM.refreshCache();
            }

        }
    },

    onDrag: function(e) {

        // Keep track of the direction of the drag for use during onDragOver
        var y = Event.getPageY(e);

        if (y < this.lastY) {
            this.goingUp = true;
        } else if (y > this.lastY) {
            this.goingUp = false;
        }

        this.lastY = y;
    },

    onDragOver: function(e, id) {

        var srcEl = this.getEl();
        var destEl = Dom.get(id);

        // We are only concerned with list items, we ignore the dragover
        // notifications for the list.
        if (destEl.nodeName.toLowerCase() == "li") {
            var orig_p = srcEl.parentNode;
            var p = destEl.parentNode;

            if (this.goingUp) {
                p.insertBefore(srcEl, destEl); // insert above
            } else {
                p.insertBefore(srcEl, destEl.nextSibling); // insert below
            }

            DDM.refreshCache();
        }
    }
});

Event.onDOMReady(YAHOO.example.DDApp.init, YAHOO.example.DDApp, true);

})();

function jol_toggle_callback(e) {
    YAHOO.util.Event.preventDefault(e);
    var forumid = this.id;
    forumid = forumid.replace(/a_toggle_forumbit_/, '');
    Jol_Ajax_ForumHome_Open(forumid);
    jol_toggle_class('forumbit_' + forumid);
    toggle_collapse('forumbit_' + forumid);
    return false;
}
