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Add support for optgroup #14

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253 changes: 137 additions & 116 deletions select2.sortable.js
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Original file line number Diff line number Diff line change
Expand Up @@ -3,123 +3,144 @@
* - enable select2 to be sortable via normal select element
*
* author : Vafour
* modified : Kevin Provance (kprovance)
* inspired by : jQuery Chosen Sortable (https://github.com/mrhenry/jquery-chosen-sortable)
* License : GPL
*/

(function($){
$.fn.extend({
select2SortableOrder: function(){
var $this = this.filter('[multiple]');

$this.each(function(){
var $select = $(this);

// skip elements not select2-ed
if(typeof($select.data('select2')) !== 'object'){
return false;
}

var $select2 = $select.siblings('.select2-container'),
unselected = [],
sorted;

$select.find('option').each(function(){
!this.selected && unselected.push(this);
});

sorted = $($select2.find('.select2-choices li[class!="select2-search-field"]').map( function() {
if (!this) {
return undefined;
}
var id = $(this).data('select2Data').id;
return $select.find('option[value="' + id + '"]')[0];
}));

sorted.push.apply(sorted, unselected);
$select.children().remove();
$select.append(sorted);
});

return $this;
},
select2Sortable: function(){
var args = Array.prototype.slice.call(arguments, 0);
$this = this.filter('[multiple]'),
validMethods = ['destroy'];

if(args.length === 0 || typeof(args[0]) === 'object')
{
var defaultOptions = {
bindOrder : 'formSubmit', // or sortableStop
sortableOptions : {
placeholder : 'ui-state-highlight',
items : 'li:not(.select2-search-field)',
tolerance : 'pointer'
}
};
var options = $.extend(defaultOptions, args[0]);

// Init select2 only if not already initialized to prevent select2 configuration loss
if(typeof($this.data('select2')) !== 'object'){
$this.select2();
}

$this.each(function(){
var $select = $(this),
$select2choices = $select.siblings('.select2-container').find('.select2-choices');

// Init jQuery UI Sortable
$select2choices.sortable(options.sortableOptions);

switch(options.bindOrder){
case 'sortableStop':
// apply options ordering in sortstop event
$select2choices.on("sortstop.select2sortable", function( event, ui ) {
$select.select2SortableOrder();
});
$select.on('change', function(e){
$(this).select2SortableOrder();
});
break;
default:
// apply options ordering in form submit
$select.closest('form').unbind('submit.select2sortable').on('submit.select2sortable', function(){
$select.select2SortableOrder();
});
}

});
}
else if(typeof(args[0] === 'string'))
{
if($.inArray(args[0], validMethods) == -1)
{
throw "Unknown method: " + args[0];
}
if(args[0] === 'destroy')
{
$this.select2SortableDestroy();
}
}
return $this;
},
select2SortableDestroy: function(){
var $this = this.filter('[multiple]');
$this.each(function(){
var $select = $(this),
$select2choices = $select.parent().find('.select2-choices');

// unbind form submit event
$select.closest('form').unbind('submit.select2sortable');

// unbind sortstop event
$select2choices.unbind("sortstop.select2sortable");

// destroy select2Sortable
$select2choices.sortable('destroy');
});
return $this;
}
});
}(jQuery));
(function ($) {
$.fn.extend({
select2SortableOrder: function () {
var $this = this.filter('[multiple]');

$this.each(function () {
var $select = $(this);

// skip elements not select2-ed
if (typeof ($select.data('select2')) !== 'object') {
return false;
}

var $select2 = $select.siblings('.select2-container')
var sorted;

// Opt group names
var optArr = [];

$select.find('optgroup').each(function(idx, val) {
optArr.push (val);
});

$select.find('option').each(function(idx, val) {
var groupName = $(this).parent('optgroup').prop('label');
var optVal = this;

if (groupName === undefined) {
if (this.value !== '') {
optArr.push (optVal);
}
}
});

sorted = $($select2.find('.select2-choices li[class!="select2-search-field"]').map(function () {
if (!this) {
return undefined;
}

var id = $(this).data('select2Data').id;

return $select.find('option[value="' + id + '"]')[0];
}));

sorted.push.apply(sorted, optArr);

$select.children().remove();
$select.append(sorted);
});

return $this;
},

select2Sortable: function () {
var args = Array.prototype.slice.call(arguments, 0);
$this = this.filter('[multiple]'),
validMethods = ['destroy'];

if (args.length === 0 || typeof (args[0]) === 'object') {
var defaultOptions = {
bindOrder: 'formSubmit', // or sortableStop
sortableOptions: {
placeholder: 'ui-state-highlight',
items: 'li:not(.select2-search-field)',
tolerance: 'pointer'
}
};

var options = $.extend(defaultOptions, args[0]);

// Init select2 only if not already initialized to prevent select2 configuration loss
if (typeof ($this.data('select2')) !== 'object') {
$this.select2();
}

$this.each(function () {
var $select = $(this)
var $select2choices = $select.siblings('.select2-container').find('.select2-choices');

// Init jQuery UI Sortable
$select2choices.sortable(options.sortableOptions);

switch (options.bindOrder) {
case 'sortableStop':
// apply options ordering in sortstop event
$select2choices.on("sortstop.select2sortable", function (event, ui) {
$select.select2SortableOrder();
});

$select.on('change', function (e) {
$(this).select2SortableOrder();
});
break;

default:
// apply options ordering in form submit
$select.closest('form').unbind('submit.select2sortable').on('submit.select2sortable', function () {
$select.select2SortableOrder();
});
break;
}
});
}
else if (typeof (args[0] === 'string')) {
if ($.inArray(args[0], validMethods) == -1) {
throw "Unknown method: " + args[0];
}

if (args[0] === 'destroy') {
$this.select2SortableDestroy();
}
}

return $this;
},

select2SortableDestroy: function () {
var $this = this.filter('[multiple]');
$this.each(function () {
var $select = $(this)
var $select2choices = $select.parent().find('.select2-choices');

// unbind form submit event
$select.closest('form').unbind('submit.select2sortable');

// unbind sortstop event
$select2choices.unbind("sortstop.select2sortable");

// destroy select2Sortable
$select2choices.sortable('destroy');
});

return $this;
}
});
}(jQuery));