allow/disallow movement by mouse to left (make sibling) and right (make child)

[mafar]

Hi,
I think there should be an option if you want to force that users can make a item child by dragging them right and so on.
This is helpful in situation where you have just groups at root level , max-depth=2 , and you only want user to sort groups or sort items between groups. In such case if user was dropping items fast , most of items would get reverted because users pulled mouse too Right and because of max depth=2, items got reverted. I got lots of complaints because of this from users.

[mafar]

When there is max depth =2 , why would it even allow some item to be pulled right ? and make it child. Doesnot make sense.

[mafar]

#31
I solved it by adding 2 options.
allowRightMovement : true/false //whether the item is allowed to move the left by mouse
allowLeftMovement : true/false //whether the item is allowed to move the right by mouse

[mafar]

ok the betetr fix would be just to wrap else if with `if(!this.beyondMaxLevels){``
at this postion. Now fixes my problem without adding any option

            // mjs - if the item is below a sibling and is moved to the right, make it a child of that sibling
            else if (o.allowRightMovement  
                     &&  previousItem != null
                     && ! previousItem.hasClass(o.disableNestingClass)
                     &&
                        (previousItem.children(o.listType).length && previousItem.children(o.listType).is(':visible')
                         || ! previousItem.children(o.listType).length)
                     && ! (o.protectRoot && this.currentItem[0].parentNode == this.element[0])
                     &&
                        (o.rtl && (this.positionAbs.left + this.helper.outerWidth() < previousItem.offset().left + previousItem.outerWidth() - o.tabSize)
                         || ! o.rtl && (this.positionAbs.left > previousItem.offset().left + o.tabSize))
            ) {

                this._isAllowed(previousItem, level, level+childLevels+1);

                if(!this.beyondMaxLevels){
                    if (!previousItem.children(o.listType).length) {
                        previousItem[0].appendChild(newList);
                        o.isTree && previousItem.removeClass(o.leafClass).addClass(o.branchClass + ' ' + o.expandedClass);
                    }

                    // mjs - if this item is being moved from the top, add it to the top of the list.
                    if (previousTopOffset && (previousTopOffset <= previousItem.offset().top)) {
                        previousItem.children(o.listType).prepend(this.placeholder);
                    }
                    // mjs - otherwise, add it to the bottom of the list.
                    else {
                        previousItem.children(o.listType)[0].appendChild(this.placeholder[0]);
                    }

                    this._trigger("change", event, this._uiHash());
                }

            }

[LrntL]

Thanks