/*
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* MultiSelect v0.9.8
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* Copyright (c) 2012 Louis Cuny
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*
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* This program is free software. It comes without any warranty, to
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* the extent permitted by applicable law. You can redistribute it
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* and/or modify it under the terms of the Do What The Fuck You Want
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* To Public License, Version 2, as published by Sam Hocevar. See
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* http://sam.zoy.org/wtfpl/COPYING for more details.
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*/
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!function ($) {
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"use strict";
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/* MULTISELECT CLASS DEFINITION
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* ====================== */
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var MultiSelect = function (element, options) {
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this.options = options;
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this.$element = $(element);
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this.$container = $('<div/>', { 'class': "ms-container" });
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this.$selectableContainer = $('<div/>', { 'class': 'ms-selectable' });
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this.$selectionContainer = $('<div/>', { 'class': 'ms-selection' });
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this.$selectableUl = $('<ul/>', { 'class': "ms-list", 'tabindex' : '-1' });
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this.$selectionUl = $('<ul/>', { 'class': "ms-list", 'tabindex' : '-1' });
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this.scrollTo = 0;
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this.sanitizeRegexp = new RegExp("\\W+", 'gi');
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this.elemsSelector = 'li:visible:not(.ms-optgroup-label,.ms-optgroup-container,.'+options.disabledClass+')';
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};
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MultiSelect.prototype = {
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constructor: MultiSelect,
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init: function(){
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var that = this,
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ms = this.$element;
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if (ms.next('.ms-container').length === 0){
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ms.css({ position: 'absolute', left: '-9999px' });
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ms.attr('id', ms.attr('id') ? ms.attr('id') : Math.ceil(Math.random()*1000)+'multiselect');
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this.$container.attr('id', 'ms-'+ms.attr('id'));
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ms.find('option').each(function(){
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that.generateLisFromOption(this);
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});
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this.$selectionUl.find('.ms-optgroup-label').hide();
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if (that.options.selectableHeader){
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that.$selectableContainer.append(that.options.selectableHeader);
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}
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that.$selectableContainer.append(that.$selectableUl);
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if (that.options.selectableFooter){
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that.$selectableContainer.append(that.options.selectableFooter);
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}
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if (that.options.selectionHeader){
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that.$selectionContainer.append(that.options.selectionHeader);
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}
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that.$selectionContainer.append(that.$selectionUl);
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if (that.options.selectionFooter){
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that.$selectionContainer.append(that.options.selectionFooter);
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}
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that.$container.append(that.$selectableContainer);
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that.$container.append(that.$selectionContainer);
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ms.after(that.$container);
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that.activeMouse(that.$selectableUl);
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that.activeKeyboard(that.$selectableUl);
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var action = that.options.dblClick ? 'dblclick' : 'click';
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that.$selectableUl.on(action, '.ms-elem-selectable', function(){
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that.select($(this).data('ms-value'));
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});
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that.$selectionUl.on(action, '.ms-elem-selection', function(){
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that.deselect($(this).data('ms-value'));
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});
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that.activeMouse(that.$selectionUl);
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that.activeKeyboard(that.$selectionUl);
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ms.on('focus', function(){
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that.$selectableUl.focus();
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})
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}
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var selectedValues = ms.find('option:selected').map(function(){ return $(this).val(); }).get();
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that.select(selectedValues, 'init');
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if (typeof that.options.afterInit === 'function') {
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that.options.afterInit.call(this, this.$container);
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}
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},
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'generateLisFromOption' : function(option){
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var that = this,
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ms = that.$element,
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attributes = "",
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$option = $(option);
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for (var cpt = 0; cpt < option.attributes.length; cpt++){
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var attr = option.attributes[cpt];
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if(attr.name !== 'value' && attr.name !== 'disabled'){
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attributes += attr.name+'="'+attr.value+'" ';
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}
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}
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var selectableLi = $('<li '+attributes+'><span>'+$option.text()+'</span></li>'),
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selectedLi = selectableLi.clone(),
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value = $option.val(),
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elementId = that.sanitize(value, that.sanitizeRegexp);
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selectableLi
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.data('ms-value', value)
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.addClass('ms-elem-selectable')
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.attr('id', elementId+'-selectable');
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selectedLi
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.data('ms-value', value)
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.addClass('ms-elem-selection')
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.attr('id', elementId+'-selection')
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.hide();
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if ($option.prop('disabled') || ms.prop('disabled')){
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selectedLi.addClass(that.options.disabledClass);
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selectableLi.addClass(that.options.disabledClass);
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}
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var $optgroup = $option.parent('optgroup');
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if ($optgroup.length > 0){
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var optgroupLabel = $optgroup.attr('label'),
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optgroupId = that.sanitize(optgroupLabel, that.sanitizeRegexp),
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$selectableOptgroup = that.$selectableUl.find('#optgroup-selectable-'+optgroupId),
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$selectionOptgroup = that.$selectionUl.find('#optgroup-selection-'+optgroupId);
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if ($selectableOptgroup.length === 0){
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var optgroupContainerTpl = '<li class="ms-optgroup-container"></li>',
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optgroupTpl = '<ul class="ms-optgroup"><li class="ms-optgroup-label"><span>'+optgroupLabel+'</span></li></ul>';
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$selectableOptgroup = $(optgroupContainerTpl);
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$selectionOptgroup = $(optgroupContainerTpl);
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$selectableOptgroup.attr('id', 'optgroup-selectable-'+optgroupId);
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$selectionOptgroup.attr('id', 'optgroup-selection-'+optgroupId);
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$selectableOptgroup.append($(optgroupTpl));
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$selectionOptgroup.append($(optgroupTpl));
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if (that.options.selectableOptgroup){
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$selectableOptgroup.find('.ms-optgroup-label').on('click', function(){
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var values = $optgroup.children(':not(:selected)').map(function(){ return $(this).val() }).get();
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that.select(values);
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});
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$selectionOptgroup.find('.ms-optgroup-label').on('click', function(){
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var values = $optgroup.children(':selected').map(function(){ return $(this).val() }).get();
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that.deselect(values);
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});
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}
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that.$selectableUl.append($selectableOptgroup);
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that.$selectionUl.append($selectionOptgroup);
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}
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$selectableOptgroup.children().append(selectableLi);
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$selectionOptgroup.children().append(selectedLi);
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} else {
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that.$selectableUl.append(selectableLi);
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that.$selectionUl.append(selectedLi);
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}
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},
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'activeKeyboard' : function($list){
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var that = this;
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$list.on('focus', function(){
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$(this).addClass('ms-focus');
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})
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.on('blur', function(){
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$(this).removeClass('ms-focus');
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})
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.on('keydown', function(e){
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switch (e.which) {
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case 40:
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case 38:
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e.preventDefault();
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e.stopPropagation();
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that.moveHighlight($(this), (e.which === 38) ? -1 : 1);
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return;
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case 32:
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e.preventDefault();
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e.stopPropagation();
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that.selectHighlighted($list);
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return;
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case 37:
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case 39:
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e.preventDefault();
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e.stopPropagation();
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that.switchList($list);
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return;
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}
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});
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},
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'moveHighlight': function($list, direction){
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var $elems = $list.find(this.elemsSelector),
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$currElem = $elems.filter('.ms-hover'),
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$nextElem = null,
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elemHeight = $elems.first().outerHeight(),
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containerHeight = $list.height(),
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containerSelector = '#'+this.$container.prop('id');
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// Deactive mouseenter event when move is active
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// It fixes a bug when mouse is over the list
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$elems.off('mouseenter');
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$elems.removeClass('ms-hover');
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if (direction === 1){ // DOWN
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$nextElem = $currElem.nextAll(this.elemsSelector).first();
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if ($nextElem.length === 0){
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var $optgroupUl = $currElem.parent();
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if ($optgroupUl.hasClass('ms-optgroup')){
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var $optgroupLi = $optgroupUl.parent(),
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$nextOptgroupLi = $optgroupLi.next(':visible');
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if ($nextOptgroupLi.length > 0){
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$nextElem = $nextOptgroupLi.find(this.elemsSelector).first();
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} else {
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$nextElem = $elems.first();
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}
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} else {
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$nextElem = $elems.first();
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}
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}
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} else if (direction === -1){ // UP
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$nextElem = $currElem.prevAll(this.elemsSelector).first();
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if ($nextElem.length === 0){
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var $optgroupUl = $currElem.parent();
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if ($optgroupUl.hasClass('ms-optgroup')){
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var $optgroupLi = $optgroupUl.parent(),
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$prevOptgroupLi = $optgroupLi.prev(':visible');
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if ($prevOptgroupLi.length > 0){
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$nextElem = $prevOptgroupLi.find(this.elemsSelector).last();
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} else {
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$nextElem = $elems.last();
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}
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} else {
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$nextElem = $elems.last();
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}
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}
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}
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if ($nextElem.length > 0){
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$nextElem.addClass('ms-hover');
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var scrollTo = $list.scrollTop() + $nextElem.position().top -
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containerHeight / 2 + elemHeight / 2;
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$list.scrollTop(scrollTo);
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}
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},
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'selectHighlighted' : function($list){
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var $elems = $list.find(this.elemsSelector),
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$highlightedElem = $elems.filter('.ms-hover').first();
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if ($highlightedElem.length > 0){
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if ($list.parent().hasClass('ms-selectable')){
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this.select($highlightedElem.data('ms-value'));
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} else {
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this.deselect($highlightedElem.data('ms-value'));
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}
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$elems.removeClass('ms-hover');
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}
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},
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'switchList' : function($list){
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$list.blur();
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if ($list.parent().hasClass('ms-selectable')){
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this.$selectionUl.focus();
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} else {
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this.$selectableUl.focus();
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}
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},
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'activeMouse' : function($list){
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var that = this;
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$list.on('mousemove', function(){
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var elems = $list.find(that.elemsSelector);
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elems.on('mouseenter', function(){
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elems.removeClass('ms-hover');
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$(this).addClass('ms-hover');
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});
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});
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},
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'refresh' : function() {
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this.destroy();
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this.$element.multiSelect(this.options);
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},
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'destroy' : function(){
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$("#ms-"+this.$element.attr("id")).remove();
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this.$element.removeData('multiselect');
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},
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'select' : function(value, method){
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if (typeof value === 'string'){ value = [value]; }
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var that = this,
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ms = this.$element,
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msIds = $.map(value, function(val){ return(that.sanitize(val, that.sanitizeRegexp)); }),
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selectables = this.$selectableUl.find('#' + msIds.join('-selectable, #')+'-selectable').filter(':not(.'+that.options.disabledClass+')'),
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selections = this.$selectionUl.find('#' + msIds.join('-selection, #') + '-selection').filter(':not(.'+that.options.disabledClass+')'),
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options = ms.find('option:not(:disabled)').filter(function(){ return($.inArray(this.value, value) > -1); });
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if (selectables.length > 0){
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selectables.addClass('ms-selected').hide();
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selections.addClass('ms-selected').show();
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options.prop('selected', true);
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var selectableOptgroups = that.$selectableUl.children('.ms-optgroup-container');
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if (selectableOptgroups.length > 0){
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selectableOptgroups.each(function(){
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var selectablesLi = $(this).find('.ms-elem-selectable');
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if (selectablesLi.length === selectablesLi.filter('.ms-selected').length){
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$(this).find('.ms-optgroup-label').hide();
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}
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});
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var selectionOptgroups = that.$selectionUl.children('.ms-optgroup-container');
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selectionOptgroups.each(function(){
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var selectionsLi = $(this).find('.ms-elem-selection');
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if (selectionsLi.filter('.ms-selected').length > 0){
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$(this).find('.ms-optgroup-label').show();
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}
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});
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} else {
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if (that.options.keepOrder){
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var selectionLiLast = that.$selectionUl.find('.ms-selected');
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if((selectionLiLast.length > 1) && (selectionLiLast.last().get(0) != selections.get(0))) {
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selections.insertAfter(selectionLiLast.last());
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}
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}
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}
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if (method !== 'init'){
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ms.trigger('change');
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if (typeof that.options.afterSelect === 'function') {
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that.options.afterSelect.call(this, value);
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}
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}
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}
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},
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'deselect' : function(value){
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if (typeof value === 'string'){ value = [value]; }
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var that = this,
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ms = this.$element,
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msIds = $.map(value, function(val){ return(that.sanitize(val, that.sanitizeRegexp)); }),
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selectables = this.$selectableUl.find('#' + msIds.join('-selectable, #')+'-selectable'),
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selections = this.$selectionUl.find('#' + msIds.join('-selection, #')+'-selection').filter('.ms-selected'),
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options = ms.find('option').filter(function(){ return($.inArray(this.value, value) > -1); });
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if (selections.length > 0){
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selectables.removeClass('ms-selected').show();
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selections.removeClass('ms-selected').hide();
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options.prop('selected', false);
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var selectableOptgroups = that.$selectableUl.children('.ms-optgroup-container');
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if (selectableOptgroups.length > 0){
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selectableOptgroups.each(function(){
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var selectablesLi = $(this).find('.ms-elem-selectable');
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if (selectablesLi.filter(':not(.ms-selected)').length > 0){
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$(this).find('.ms-optgroup-label').show();
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}
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});
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var selectionOptgroups = that.$selectionUl.children('.ms-optgroup-container');
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selectionOptgroups.each(function(){
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var selectionsLi = $(this).find('.ms-elem-selection');
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if (selectionsLi.filter('.ms-selected').length === 0){
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$(this).find('.ms-optgroup-label').hide();
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}
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});
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}
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ms.trigger('change');
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if (typeof that.options.afterDeselect === 'function') {
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that.options.afterDeselect.call(this, value);
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}
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}
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},
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'select_all' : function(){
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var ms = this.$element,
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values = ms.val();
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ms.find('option:not(":disabled")').prop('selected', true);
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this.$selectableUl.find('.ms-elem-selectable').filter(':not(.'+this.options.disabledClass+')').addClass('ms-selected').hide();
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this.$selectionUl.find('.ms-optgroup-label').show();
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this.$selectableUl.find('.ms-optgroup-label').hide();
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this.$selectionUl.find('.ms-elem-selection').filter(':not(.'+this.options.disabledClass+')').addClass('ms-selected').show();
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this.$selectionUl.focus();
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ms.trigger('change');
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if (typeof this.options.afterSelect === 'function') {
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var selectedValues = $.grep(ms.val(), function(item){
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return $.inArray(item, values) < 0;
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});
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this.options.afterSelect.call(this, selectedValues);
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}
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},
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'deselect_all' : function(){
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var ms = this.$element,
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values = ms.val();
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ms.find('option').prop('selected', false);
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this.$selectableUl.find('.ms-elem-selectable').removeClass('ms-selected').show();
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this.$selectionUl.find('.ms-optgroup-label').hide();
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this.$selectableUl.find('.ms-optgroup-label').show();
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this.$selectionUl.find('.ms-elem-selection').removeClass('ms-selected').hide();
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this.$selectableUl.focus();
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ms.trigger('change');
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if (typeof this.options.afterDeselect === 'function') {
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this.options.afterDeselect.call(this, values);
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}
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},
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sanitize: function(value, reg){
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return(value.replace(reg, '_'));
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}
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};
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/* MULTISELECT PLUGIN DEFINITION
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* ======================= */
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$.fn.multiSelect = function () {
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var option = arguments[0],
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args = arguments;
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return this.each(function () {
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var $this = $(this),
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data = $this.data('multiselect'),
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options = $.extend({}, $.fn.multiSelect.defaults, $this.data(), typeof option === 'object' && option);
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if (!data){ $this.data('multiselect', (data = new MultiSelect(this, options))); }
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if (typeof option === 'string'){
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data[option](args[1]);
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} else {
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data.init();
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}
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});
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};
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$.fn.multiSelect.defaults = {
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selectableOptgroup: false,
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disabledClass : 'disabled',
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dblClick : false,
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keepOrder: false
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};
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$.fn.multiSelect.Constructor = MultiSelect;
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}(window.jQuery);
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