Mootools: How to add items to an existing Fx.Sort instance
-
17-04-2021 - |
Question
I've got a problem with Mootools Fx.Sort.
<ul id="list">
<li>One</li>
<li>Two</li>
</ul>
Javascript:
mySort = new Fx.Sort($$('ul#list>li'));
I can add more elements to the list:
$('list').adopt(new Element('li', { text: 'Three' }));
But the run-time created list elements, obviously, are not considered by Fx.Sort instance and they cannot be sorted with the others.
Is there a way to add them to the existing Fx.Sort? Or the only thing is to replace mySort
with a new instance every time I add an element at run-time?
Solution
right - it's trickier to keep it compatible with implementations of the Fx.Sort and keep it sorting as it should etc, here's a working example whereby any of the items being clicked goes to the top and then expands:
http://jsfiddle.net/dimitar/FcN32/
specific to you:
Fx.Sort.implement({
adopt: function(el, pos) {
if (!this.element)
this.element = this.elements[0] && this.elements[0].getParent();
var len = this.currentOrder.length;
pos = (pos !== null && typeof pos === 'number')
? this.currentOrder.contains(pos) ? pos : len
: len;
this.elements.include(el);
if (pos === len) {
// don't care, attach to bottom.
el.inject(this.element);
this.currentOrder.push(this.elements.indexOf(el));
}
else {
// we are injecting at a particular place in the order
el.inject(this.elements[pos], "before");
var newOrder = this.currentOrder.slice(0, pos) || [];
newOrder.push(this.elements.indexOf(el));
this.currentOrder = newOrder.combine(this.currentOrder.slice(pos));
}
if (el.getStyle('position') == 'static') el.setStyle('position', 'relative');
this.rearrangeDOM();
}
});
this is being called like instance.adopt(someel, <optional pos>)
where pos is a numeric position in the list. if omitted, it will append to tail. hope it helps...
OTHER TIPS
Taking a look at the Fx.Sort
instance, there are some attributes that you can modify according to your needs:
console.log(new Fx.Sort($$('ul#list>li'));
This is how I would do it (not tested):
var mySort = new Fx.Sort($$('ul#list>li'));
var newElement = new Element('li', { text: 'Three' });
$('list').adopt(newElement);
mySort.elements.include(newElement);
mySort.subjects.include(newElement);
// Order of elements
var orderSize = mySort.currentOrder.length;
mySort.currentOrder[orderSize] = orderSize;
However, it's modifying the internal mechanism of Mootools More FX.Sort, so it may not work.