jquery draggable droppable remove dropped

Question

How would one remove the item from the shopping cart?

Naturally you would want to be able to drag and drop the item back.

$(function() {
        $( "#catalog" ).accordion();
        $( "#catalog li" ).draggable({
            appendTo: "body",
            helper: "clone"
        });
        $( "#cart ol" ).droppable({
            activeClass: "ui-state-default",
            hoverClass: "ui-state-hover",
            accept: ":not(.ui-sortable-helper)",
            drop: function( event, ui ) {
                $( this ).find( ".placeholder" ).remove();
                $( "
" ).text( ui.draggable.text() ).appendTo( this );
            }
        }).sortable({
            items: "li:not(.placeholder)",
            sort: function() {
                // gets added unintentionally by droppable interacting with sortable
                // using connectWithSortable fixes this, but doesn't allow you to customize active/hoverClass options
                $( this ).removeClass( "ui-state-default" );
            }
        });
    });

Answer 1

This should work:

$(function() {
    $("#catalog").accordion();
    $("#catalog li").draggable({
        appendTo: "body",
        helper: "clone"
    });
    $("#cart ol").droppable({
        activeClass: "ui-state-default",
        hoverClass: "ui-state-hover",
        accept: ":not(.ui-sortable-helper)",
        drop: function(event, ui) {
            $(this).find(".placeholder").remove();
            $("<li></li>").text(ui.draggable.text())
                .addClass("cart-item")
                .appendTo(this);
        }
    }).sortable({
        items: "li:not(.placeholder)",
        sort: function() {
            $(this).removeClass("ui-state-default");
        }
    });
    $("#catalog ul").droppable({
        drop: function(event, ui) {
            $(ui.draggable).remove();
        },
        hoverClass: "ui-state-hover",
        accept: '.cart-item'
    });
});

Notes:

• When an item is dropped on the cart area, I've added a class of cart-item to the new item.
• I've made the catalog's ul droppable; this area only accepts cart-items. It calls remove() to remove an item from the cart once the drop has occurred.

See it working here: http://jsfiddle.net/andrewwhitaker/t97FE/embedded/result/

You can drag an item back from the cart to any category in the catalog, but I think it would be pretty easy to make items only draggable to their original categories.