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bootstrap-select.js
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bootstrap-select.js
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!function($) {
"use strict";
var Selectpicker = function(element, options, e) {
if (e) {
e.stopPropagation();
e.preventDefault();
}
this.$element = $(element);
this.$newElement = null;
this.button = null;
//Merge defaults, options and data-attributes to make our options
this.options = $.extend({}, $.fn.selectpicker.defaults, this.$element.data(), typeof options == 'object' && options);
//If we have no title yet, check the attribute 'title' (this is missed by jq as its not a data-attribute
if(this.options.title==null)
this.options.title = this.$element.attr('title');
//Expose public methods
this.val = Selectpicker.prototype.val;
this.render = Selectpicker.prototype.render;
this.refresh = Selectpicker.prototype.refresh;
this.selectAll = Selectpicker.prototype.selectAll;
this.deselectAll = Selectpicker.prototype.deselectAll;
this.init();
};
Selectpicker.prototype = {
constructor: Selectpicker,
init: function (e) {
if (!this.options.container) {
this.$element.hide();
} else {
this.$element.css('visibility','hidden');
};
this.multiple = this.$element.prop('multiple');
var id = this.$element.attr('id');
this.$newElement = this.createView()
this.$element.after(this.$newElement);
if (this.options.container) {
this.selectPosition();
}
this.button = this.$newElement.find('> button');
if (id !== undefined) {
var _this = this;
this.button.attr('data-id', id);
$('label[for="' + id + '"]').click(function(){
_this.button.focus();
})
}
if (this.$element.attr('class')) {
this.$newElement.addClass(this.$element.attr('class').replace(/selectpicker/gi, ''));
}
//If we are multiple, then add the show-tick class by default
if(this.multiple) {
this.$newElement.addClass('show-tick');
}
this.button.addClass(this.options.style);
this.checkDisabled();
this.checkTabIndex();
this.clickListener();
this.render();
this.setSize();
},
createDropdown: function() {
var drop =
"<div class='btn-group bootstrap-select'>" +
"<button type='button' class='btn dropdown-toggle' data-toggle='dropdown'>" +
"<div class='filter-option pull-left'></div> " +
"<div class='caret'></div>" +
"</button>" +
"<ul class='dropdown-menu' role='menu'>" +
"</ul>" +
"</div>";
return $(drop);
},
createView: function() {
var $drop = this.createDropdown();
var $li = this.createLi();
$drop.find('ul').append($li);
return $drop;
},
reloadLi: function() {
//Remove all children.
this.destroyLi();
//Re build
var $li = this.createLi();
this.$newElement.find('ul').append( $li );
},
destroyLi:function() {
this.$newElement.find('li').remove();
},
createLi: function() {
var _this = this;
var _liA = [];
var _liHtml = '';
this.$element.find('option').each(function(index) {
var $this = $(this);
//Get the class and text for the option
var optionClass = $this.attr("class") || '';
var text = $this.text();
var subtext = $this.data('subtext') !== undefined ? '<small class="muted">' + $this.data('subtext') + '</small>' : '';
var icon = $this.data('icon') !== undefined ? '<i class="'+$this.data('icon')+'"></i> ' : '';
if (icon !== '' && ($this.is(':disabled') || $this.parent().is(':disabled'))) {
icon = '<span>'+icon+'</span>';
}
//Prepend any icon and append any subtext to the main text.
text = icon + '<span class="text">' + text + subtext + '</span>';
if (_this.options.hideDisabled && ($this.is(':disabled') || $this.parent().is(':disabled'))) {
_liA.push('<a style="min-height: 0; padding: 0"></a>');
} else if ($this.parent().is('optgroup') && $this.data('divider') != true) {
if ($this.index() == 0) {
//Get the opt group label
var label = $this.parent().attr('label');
var labelSubtext = $this.parent().data('subtext') !== undefined ? '<small class="muted">'+$this.parent().data('subtext')+'</small>' : '';
var labelIcon = $this.parent().data('icon') ? '<i class="'+$this.parent().data('icon')+'"></i> ' : '';
label = labelIcon + '<span class="text">' + label + labelSubtext + '</span>';
if ($this[0].index != 0) {
_liA.push(
'<div class="div-contain"><div class="divider"></div></div>'+
'<dt>'+label+'</dt>'+
_this.createA(text, "opt " + optionClass )
);
} else {
_liA.push(
'<dt>'+label+'</dt>'+
_this.createA(text, "opt " + optionClass ));
}
} else {
_liA.push( _this.createA(text, "opt " + optionClass ) );
}
} else if ($this.data('divider') == true) {
_liA.push('<div class="div-contain"><div class="divider"></div></div>');
} else if ($(this).data('hidden') == true) {
_liA.push('');
} else {
_liA.push( _this.createA(text, optionClass ) );
}
});
$.each(_liA, function(i, item){
_liHtml += "<li rel=" + i + ">" + item + "</li>";
});
//If we are not multiple, and we dont have a selected item, and we dont have a title, select the first element so something is set in the button
if(!this.multiple && this.$element.find('option:selected').length==0 && !_this.options.title) {
this.$element.find('option').eq(0).prop('selected', true).attr('selected', 'selected');
}
return $(_liHtml);
},
createA:function(text, classes) {
return '<a tabindex="0" class="'+classes+'">' +
text +
'<i class="icon-ok check-mark"></i>' +
'</a>';
},
render:function() {
var _this = this;
//Update the LI to match the SELECT
this.$element.find('option').each(function(index) {
_this.setDisabled(index, $(this).is(':disabled') || $(this).parent().is(':disabled') );
_this.setSelected(index, $(this).is(':selected') );
});
var selectedItems = this.$element.find('option:selected').map(function(index,value) {
var subtext;
if (_this.options.showSubtext && $(this).attr('data-subtext') && !_this.multiple) {
subtext = ' <small class="muted">'+$(this).data('subtext') +'</small>';
} else {
subtext = '';
}
if($(this).attr('title')!=undefined) {
return $(this).attr('title');
} else {
return $(this).text() + subtext;
}
}).toArray();
//Fixes issue in IE10 occurring when no default option is selected and at least one option is disabled
//Convert all the values into a comma delimited string
var title = !this.multiple ? selectedItems[0] : selectedItems.join(", "),
separator = _this.options.separatorText || _this.options.defaultSeparatorText,
selected = _this.options.selectedText || _this.options.defaultSelectedText;
//If this is multi select, and the selectText type is count, the show 1 of 2 selected etc..
if(_this.multiple && _this.options.selectedTextFormat.indexOf('count') > -1) {
var max = _this.options.selectedTextFormat.split(">");
var notDisabled = this.options.hideDisabled ? ':not([disabled])' : '';
if( (max.length>1 && selectedItems.length > max[1]) || (max.length==1 && selectedItems.length>=2)) {
title = _this.options.countSelectedText.replace('{0}', selectedItems.length).replace('{1}', this.$element.find('option:not([data-divider="true"]):not([data-hidden="true"])'+notDisabled).length);
}
}
//If we dont have a title, then use the default, or if nothing is set at all, use the not selected text
if(!title) {
title = _this.options.title != undefined ? _this.options.title : _this.options.noneSelectedText;
}
var subtext;
if (this.options.showSubtext && this.$element.find('option:selected').attr('data-subtext')) {
subtext = ' <small class="muted">'+this.$element.find('option:selected').data('subtext') +'</small>';
} else {
subtext = '';
}
var icon = this.$element.find('option:selected').data('icon') || '';
if(icon.length) {
icon = '<i class="' + icon + '"></i> ';
}
_this.$newElement.find('.filter-option').html(icon + title + subtext);
},
setSize:function() {
if(this.options.container) {
// Show $newElement before perfoming size calculations
this.$newElement.toggle(this.$element.parent().is(':visible'));
}
var _this = this;
var menu = this.$newElement.find('.dropdown-menu');
var menuA = menu.find('li > a');
var liHeight = this.$newElement.addClass('open').find('.dropdown-menu li > a').outerHeight();
this.$newElement.removeClass('open');
var divHeight = menu.find('li .divider').outerHeight(true);
var selectOffset_top = this.$newElement.offset().top;
var selectHeight = this.$newElement.outerHeight();
var menuPadding = parseInt(menu.css('padding-top')) + parseInt(menu.css('padding-bottom')) + parseInt(menu.css('border-top-width')) + parseInt(menu.css('border-bottom-width'));
var notDisabled = this.options.hideDisabled ? ':not(.disabled)' : '';
var menuHeight;
if (this.options.size == 'auto') {
var getSize = function() {
var selectOffset_top_scroll = selectOffset_top - $(window).scrollTop();
var windowHeight = window.innerHeight;
var menuExtras = menuPadding + parseInt(menu.css('margin-top')) + parseInt(menu.css('margin-bottom')) + 2;
var selectOffset_bot = windowHeight - selectOffset_top_scroll - selectHeight - menuExtras;
var minHeight;
menuHeight = selectOffset_bot;
if (_this.$newElement.hasClass('dropup')) {
menuHeight = selectOffset_top_scroll - menuExtras;
}
if ((menu.find('li').length + menu.find('dt').length) > 3) {
minHeight = liHeight*3 + menuExtras - 2;
} else {
minHeight = 0;
}
menu.css({'max-height' : menuHeight + 'px', 'overflow-y' : 'auto', 'min-height' : minHeight + 'px'});
}
getSize();
$(window).resize(getSize);
$(window).scroll(getSize);
} else if (this.options.size && this.options.size != 'auto' && menu.find('li'+notDisabled).length > this.options.size) {
var optIndex = menu.find("li"+notDisabled+" > *").filter(':not(.div-contain)').slice(0,this.options.size).last().parent().index();
var divLength = menu.find("li").slice(0,optIndex + 1).find('.div-contain').length;
menuHeight = liHeight*this.options.size + divLength*divHeight + menuPadding;
menu.css({'max-height' : menuHeight + 'px', 'overflow-y' : 'auto'});
}
//Set width of select
if (this.options.width == 'auto') {
this.$newElement.find('.dropdown-menu').css('min-width','0');
var ulWidth = this.$newElement.find('.dropdown-menu').css('width');
this.$newElement.css('width',ulWidth);
if (this.options.container) {
this.$element.css('width',ulWidth);
}
} else if (this.options.width) {
if (this.options.container) {
// Note: options.width can be %
this.$element.css('width', this.options.width);
// Set pixel width of $newElement based on $element's pixel width
this.$newElement.width(this.$element.outerWidth());
} else {
this.$newElement.css('width',this.options.width);
}
} else if(this.options.container) {
// Set width of $newElement based on $element
this.$newElement.width(this.$element.outerWidth());
}
},
selectPosition:function() {
var containerOffset = $(this.options.container).offset();
var eltOffset = this.$element.offset();
if(containerOffset && eltOffset) {
var selectElementTop = eltOffset.top - containerOffset.top;
var selectElementLeft = eltOffset.left - containerOffset.left;
this.$newElement.appendTo(this.options.container);
this.$newElement.css({'position':'absolute', 'top':selectElementTop+'px', 'left':selectElementLeft+'px'});
}
},
refresh:function() {
this.reloadLi();
this.render();
this.setSize();
this.checkDisabled();
if (this.options.container) {
this.selectPosition();
}
},
setSelected:function(index, selected) {
if(selected) {
this.$newElement.find('li').eq(index).addClass('selected');
} else {
this.$newElement.find('li').eq(index).removeClass('selected');
}
},
setDisabled:function(index, disabled) {
if(disabled) {
this.$newElement.find('li').eq(index).addClass('disabled').find('a').attr('href','#').attr('tabindex',-1);
} else {
this.$newElement.find('li').eq(index).removeClass('disabled').find('a').removeAttr('href').attr('tabindex',0);
}
},
isDisabled: function() {
return this.$element.is(':disabled') || this.$element.attr('readonly');
},
checkDisabled: function() {
if (this.isDisabled()) {
this.button.addClass('disabled');
this.button.click(function(e) {
e.preventDefault();
});
this.button.attr('tabindex','-1');
} else if (!this.isDisabled() && this.button.hasClass('disabled')) {
this.button.removeClass('disabled');
this.button.click(function() {
return true;
});
this.button.removeAttr('tabindex');
}
},
checkTabIndex: function() {
if (this.$element.is('[tabindex]')) {
var tabindex = this.$element.attr("tabindex");
this.button.attr('tabindex', tabindex);
}
},
clickListener: function() {
var _this = this;
$('body').on('touchstart.dropdown', '.dropdown-menu', function (e) { e.stopPropagation(); });
this.$newElement.on('click', 'li a', function(e){
var clickedIndex = $(this).parent().index(),
$this = $(this).parent(),
$select = $this.parents('.bootstrap-select'),
prevValue = _this.$element.val();
//Dont close on multi choice menu
if(_this.multiple) {
e.stopPropagation();
}
e.preventDefault();
//Dont run if we have been disabled
if (_this.$element.not(':disabled') && !$(this).parent().hasClass('disabled')){
//Deselect all others if not multi select box
if (!_this.multiple) {
_this.$element.find('option').prop('selected', false);
_this.$element.find('option').eq(clickedIndex).prop('selected', true);
}
//Else toggle the one we have chosen if we are multi select.
else {
var selected = _this.$element.find('option').eq(clickedIndex).prop('selected');
if(selected) {
_this.$element.find('option').eq(clickedIndex).prop('selected', false);
} else {
_this.$element.find('option').eq(clickedIndex).prop('selected', true);
}
}
$select.find('button').focus();
// Trigger select 'change'
if (prevValue != _this.$element.val()) {
_this.$element.trigger('change');
}
_this.render();
}
});
this.$newElement.on('click', 'li.disabled a, li dt, li .div-contain', function(e) {
e.preventDefault();
e.stopPropagation();
var $select = $(this).parent().parents('.bootstrap-select');
$select.find('button').focus();
});
this.$element.on('change', function(e) {
_this.render();
});
},
val:function(value) {
if(value!=undefined) {
this.$element.val( value );
this.$element.trigger('change');
return this.$element;
} else {
return this.$element.val();
}
},
selectAll:function() {
this.$element.find('option').prop('selected', true).attr('selected', 'selected');
this.render();
},
deselectAll:function() {
this.$element.find('option').prop('selected', false).removeAttr('selected');
this.render();
},
keydown: function (e) {
var $this,
$items,
$parent,
index,
next,
first,
last,
prev,
nextPrev
$this = $(this);
$parent = $this.parent();
$items = $('[role=menu] li:not(.divider):visible a', $parent);
if (!$items.length) return;
if (/(38|40)/.test(e.keyCode)) {
index = $items.index($items.filter(':focus'));
first = $items.parent(':not(.disabled)').first().index();
last = $items.parent(':not(.disabled)').last().index();
next = $items.eq(index).parent().nextAll(':not(.disabled)').eq(0).index();
prev = $items.eq(index).parent().prevAll(':not(.disabled)').eq(0).index();
nextPrev = $items.eq(next).parent().prevAll(':not(.disabled)').eq(0).index();
if (e.keyCode == 38) {
if (index != nextPrev && index > prev) index = prev;
if (index < first) index = first;
}
if (e.keyCode == 40) {
if (index != nextPrev && index < next) index = next;
if (index > last) index = last;
}
$items.eq(index).focus()
} else {
var keyCodeMap = {
48:"0", 49:"1", 50:"2", 51:"3", 52:"4", 53:"5", 54:"6", 55:"7", 56:"8", 57:"9", 59:";",
65:"a", 66:"b", 67:"c", 68:"d", 69:"e", 70:"f", 71:"g", 72:"h", 73:"i", 74:"j", 75:"k", 76:"l",
77:"m", 78:"n", 79:"o", 80:"p", 81:"q", 82:"r", 83:"s", 84:"t", 85:"u", 86:"v", 87:"w", 88:"x", 89:"y", 90:"z",
96:"0", 97:"1", 98:"2", 99:"3", 100:"4", 101:"5", 102:"6", 103:"7", 104:"8", 105:"9"
}
var keyIndex = [];
$items.each(function() {
if ($(this).parent().is(':not(.disabled)')) {
if ($.trim($(this).text().toLowerCase()).substring(0,1) == keyCodeMap[e.keyCode]) {
keyIndex.push($(this).parent().index());
}
}
});
var count = $(document).data('keycount');
count++;
$(document).data('keycount',count);
var prevKey = $.trim($(':focus').text().toLowerCase()).substring(0,1);
if (prevKey != keyCodeMap[e.keyCode]) {
count = 1;
$(document).data('keycount',count);
} else if (count >= keyIndex.length) {
$(document).data('keycount',0);
}
$items.eq(keyIndex[count - 1]).focus();
}
if (/(13)/.test(e.keyCode)) {
$(':focus').click();
$parent.addClass('open');
$(document).data('keycount',0);
}
}
};
$.fn.selectpicker = function(option, event) {
//get the args of the outer function..
var args = arguments;
var value;
var chain = this.each(function () {
if ($(this).is('select')) {
var $this = $(this),
data = $this.data('selectpicker'),
options = typeof option == 'object' && option;
if (!data) {
$this.data('selectpicker', (data = new Selectpicker(this, options, event)));
} else if(options){
for(var i in options) {
data.options[i]=options[i];
}
}
if (typeof option == 'string') {
//Copy the value of option, as once we shift the arguments
//it also shifts the value of option.
var property = option;
if(data[property] instanceof Function) {
[].shift.apply(args);
value = data[property].apply(data, args);
} else {
value = data.options[property];
}
}
}
});
if(value!=undefined) {
return value;
} else {
return chain;
}
};
$.fn.selectpicker.defaults = {
style: null,
size: 'auto',
title: null,
selectedTextFormat : 'values',
noneSelectedText : 'Nothing selected',
countSelectedText: '{0} of {1} selected',
width: null,
container: false,
hideDisabled: false,
showSubtext: false
}
$(document)
.data('keycount', 0)
.on('keydown', '[data-toggle=dropdown], [role=menu]' , Selectpicker.prototype.keydown)
}(window.jQuery);