<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<link rel="stylesheet" href="path/to/font-awesome/css/font-awesome.min.css">
<div class="container">
<h2>Multiselect with icons</h2>
<div class="row">
<div class="col-md-12">
<select type="text" class="form-control multiselect multiselect-icon" role="multiselect">
<option value="0" data-icon="glyphicon-camera" selected="selected">Photos</option>
<option value="1" data-icon="glyphicon-link">Link</option>
<option value="2" data-icon="glyphicon-pencil">Edit</option>
<option value="3" data-icon="glyphicon-shopping-cart">Cart</option>
</select>
</div>
</div>
</div>
.multiselect-container{
position:absolute;
list-style-type:none;
margin:0;
padding:0;
}
.multiselect-container .input-group{
margin:5px;
}
.multiselect-container>li{
padding:0;
}
.multiselect-container>li>a.multiselect-all label{
font-weight:bold;
}
.multiselect-container>li>label.multiselect-group{
margin:0;
padding:3px 20px 3px 10px;
height:100%;
font-weight:bold;
}
.multiselect-container>li>a>label{
margin:0;
height:100%;
cursor:pointer;
font-weight:normal;
}
.multiselect-container>li>a>label.radio,.multiselect-container>li>a>label.checkbox{
margin:0;
}
.multiselect-container>li>a>label>input[type="checkbox"]{
margin-bottom:5px;
}
.btn-group>.btn-group:nth-child(2)>.multiselect.btn{
border-top-left-radius:4px;
border-bottom-left-radius:4px;
}
.row {
margin-bottom: 20px;
}
.btn {
padding: 10px 16px;
font-size: 18px;
line-height: 1.33;
border-radius: 6px;
}
/**
* bootstrap-multiselect.js
* https://github.com/davidstutz/bootstrap-multiselect
*
* Copyright 2012, 2013 David Stutz
*
* Dual licensed under the BSD-3-Clause and the Apache License, Version 2.0.
*/
!function($) {
"use strict";// jshint ;_;
if (typeof ko != 'undefined' && ko.bindingHandlers && !ko.bindingHandlers.multiselect) {
ko.bindingHandlers.multiselect = {
init : function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {},
update : function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
var ms = $(element).data('multiselect');
if (!ms) {
$(element).multiselect(ko.utils.unwrapObservable(valueAccessor()));
}
else if (allBindingsAccessor().options && allBindingsAccessor().options().length !== ms.originalOptions.length) {
ms.updateOriginalOptions();
$(element).multiselect('rebuild');
}
}
};
}
function Multiselect(select, options) {
this.options = this.mergeOptions(options);
this.$select = $(select);
// Initialization.
// We have to clone to create a new reference.
this.originalOptions = this.$select.clone()[0].options;
this.query = '';
this.searchTimeout = null;
this.options.multiple = this.$select.attr('multiple') == "multiple";
this.options.onChange = $.proxy(this.options.onChange, this);
// Build select all if enabled.
this.buildContainer();
this.buildButton();
this.buildSelectAll();
this.buildDropdown();
this.buildDropdownOptions();
this.buildFilter();
this.updateButtonText();
this.$select.hide().after(this.$container);
};
Multiselect.prototype = {
// Default options.
defaults: {
// Default text function will either print 'None selected' in case no
// option is selected, or a list of the selected options up to a length of 3 selected options.
// If more than 3 options are selected, the number of selected options is printed.
buttonText: function(options, select) {
if (options.length == 0) {
return this.nonSelectedText + ' <b class="caret"></b>';
}
else {
if (options.length > 3) {
return options.length + ' ' + this.nSelectedText + ' <b class="caret"></b>';
}
else {
var selected = '';
options.each(function() {
var label = ($(this).attr('label') !== undefined) ? $(this).attr('label') : $(this).html();
//Hack by Victor Valencia R.
if($(select).hasClass('multiselect-icon')){
var icon = $(this).data('icon');
label = '<span class="glyphicon ' + icon + '"></span> ' + label;
}
selected += label + ', ';
});
return selected.substr(0, selected.length - 2) + ' <b class="caret"></b>';
}
}
},
// Like the buttonText option to update the title of the button.
buttonTitle: function(options, select) {
if (options.length == 0) {
return this.nonSelectedText;
}
else {
var selected = '';
options.each(function () {
selected += $(this).text() + ', ';
});
return selected.substr(0, selected.length - 2);
}
},
// Is triggered on change of the selected options.
onChange : function(option, checked) {
},
buttonClass: 'btn',
dropRight: false,
selectedClass: 'active',
buttonWidth: 'auto',
buttonContainer: '<div class="btn-group" />',
// Maximum height of the dropdown menu.
// If maximum height is exceeded a scrollbar will be displayed.
maxHeight: false,
includeSelectAllOption: false,
selectAllText: ' Select all',
selectAllValue: 'multiselect-all',
enableFiltering: false,
enableCaseInsensitiveFiltering: false,
filterPlaceholder: 'Search',
// possible options: 'text', 'value', 'both'
filterBehavior: 'text',
preventInputChangeEvent: false,
nonSelectedText: 'Non selected',
nSelectedText: 'selected'
},
// Templates.
templates: {
button: '<button type="button" class="multiselect dropdown-toggle" data-toggle="dropdown"></button>',
ul: '<ul class="multiselect-container dropdown-menu"></ul>',
filter: '<div class="input-group"><span class="input-group-addon"><i class="glyphicon glyphicon-search"></i></span><input class="form-control multiselect-search" type="text"></div>',
li: '<li><a href="javascript:void(0);"><label></label></a></li>',
liGroup: '<li><label class="multiselect-group"></label></li>'
},
constructor: Multiselect,
buildContainer: function() {
this.$container = $(this.options.buttonContainer);
},
buildButton: function() {
// Build button.
this.$button = $(this.templates.button).addClass(this.options.buttonClass);
// Adopt active state.
if (this.$select.prop('disabled')) {
this.disable();
}
else {
this.enable();
}
// Manually add button width if set.
if (this.options.buttonWidth) {
this.$button.css({
'width' : this.options.buttonWidth
});
}
// Keep the tab index from the select.
var tabindex = this.$select.attr('tabindex');
if (tabindex) {
this.$button.attr('tabindex', tabindex);
}
this.$container.prepend(this.$button)
},
// Build dropdown container ul.
buildDropdown: function() {
// Build ul.
this.$ul = $(this.templates.ul);
if (this.options.dropRight) {
this.$ul.addClass('pull-right');
}
// Set max height of dropdown menu to activate auto scrollbar.
if (this.options.maxHeight) {
// TODO: Add a class for this option to move the css declarations.
this.$ul.css({
'max-height': this.options.maxHeight + 'px',
'overflow-y': 'auto',
'overflow-x': 'hidden'
});
}
this.$container.append(this.$ul)
},
// Build the dropdown and bind event handling.
buildDropdownOptions: function() {
this.$select.children().each($.proxy(function(index, element) {
// Support optgroups and options without a group simultaneously.
var tag = $(element).prop('tagName').toLowerCase();
if (tag == 'optgroup') {
this.createOptgroup(element);
}
else if (tag == 'option') {
this.createOptionValue(element);
}
// Other illegal tags will be ignored.
}, this));
// Bind the change event on the dropdown elements.
$('li input', this.$ul).on('change', $.proxy(function(event) {
var checked = $(event.target).prop('checked') || false;
var isSelectAllOption = $(event.target).val() == this.options.selectAllValue;
// Apply or unapply the configured selected class.
if (this.options.selectedClass) {
if (checked) {
$(event.target).parents('li').addClass(this.options.selectedClass);
}
else {
$(event.target).parents('li').removeClass(this.options.selectedClass);
}
}
// Get the corresponding option.
var value = $(event.target).val();
var $option = this.getOptionByValue(value);
var $optionsNotThis = $('option', this.$select).not($option);
var $checkboxesNotThis = $('input', this.$container).not($(event.target));
// Toggle all options if the select all option was changed.
if (isSelectAllOption) {
$checkboxesNotThis.filter(function() {
return $(this).is(':checked') != checked;
}).trigger('click');
}
if (checked) {
$option.prop('selected', true);
if (this.options.multiple) {
// Simply select additional option.
$option.prop('selected', true);
}
else {
// Unselect all other options and corresponding checkboxes.
if (this.options.selectedClass) {
$($checkboxesNotThis).parents('li').removeClass(this.options.selectedClass);
}
$($checkboxesNotThis).prop('checked', false);
$optionsNotThis.prop('selected', false);
// It's a single selection, so close.
this.$button.click();
}
if (this.options.selectedClass == "active") {
$optionsNotThis.parents("a").css("outline", "");
}
}
else {
// Unselect option.
$option.prop('selected', false);
}
this.updateButtonText();
this.$select.change();
this.options.onChange($option, checked);
if(this.options.preventInputChangeEvent) {
return false;
}
}, this));
$('li a', this.$ul).on('touchstart click', function(event) {
event.stopPropagation();
$(event.target).blur();
});
// Keyboard support.
this.$container.on('keydown', $.proxy(function(event) {
if ($('input[type="text"]', this.$container).is(':focus')) {
return;
}
if ((event.keyCode == 9 || event.keyCode == 27) && this.$container.hasClass('open')) {
// Close on tab or escape.
this.$button.click();
}
else {
var $items = $(this.$container).find("li:not(.divider):visible a");
if (!$items.length) {
return;
}
var index = $items.index($items.filter(':focus'));
// Navigation up.
if (event.keyCode == 38 && index > 0) {
index--;
}
// Navigate down.
else if (event.keyCode == 40 && index < $items.length - 1) {
index++;
}
else if (!~index) {
index = 0;
}
var $current = $items.eq(index);
$current.focus();
if (event.keyCode == 32 || event.keyCode == 13) {
var $checkbox = $current.find('input');
$checkbox.prop("checked", !$checkbox.prop("checked"));
$checkbox.change();
}
event.stopPropagation();
event.preventDefault();
}
}, this));
},
// Will build an dropdown element for the given option.
createOptionValue: function(element) {
if ($(element).is(':selected')) {
$(element).prop('selected', true);
}
// Support the label attribute on options.
var label = $(element).attr('label') || $(element).html();
var value = $(element).val();
//Hack by Victor Valencia R.
if($(element).parent().hasClass('multiselect-icon') || $(element).parent().parent().hasClass('multiselect-icon')){
var icon = $(element).data('icon');
label = '<span class="glyphicon ' + icon + '"></span> ' + label;
}
var inputType = this.options.multiple ? "checkbox" : "radio";
var $li = $(this.templates.li);
$('label', $li).addClass(inputType);
$('label', $li).append('<input type="' + inputType + '" />');
//Hack by Victor Valencia R.
if(($(element).parent().hasClass('multiselect-icon') || $(element).parent().parent().hasClass('multiselect-icon')) && inputType == 'radio'){
$('label', $li).css('padding-left', '0px');
$('label', $li).find('input').css('display', 'none');
}
var selected = $(element).prop('selected') || false;
var $checkbox = $('input', $li);
$checkbox.val(value);
if (value == this.options.selectAllValue) {
$checkbox.parent().parent().addClass('multiselect-all');
}
$('label', $li).append(" " + label);
this.$ul.append($li);
if ($(element).is(':disabled')) {
$checkbox.attr('disabled', 'disabled').prop('disabled', true).parents('li').addClass('disabled');
}
$checkbox.prop('checked', selected);
if (selected && this.options.selectedClass) {
$checkbox.parents('li').addClass(this.options.selectedClass);
}
},
// Create optgroup.
createOptgroup: function(group) {
var groupName = $(group).prop('label');
// Add a header for the group.
var $li = $(this.templates.liGroup);
$('label', $li).text(groupName);
//Hack by Victor Valencia R.
$li.addClass('text-primary');
this.$ul.append($li);
// Add the options of the group.
$('option', group).each($.proxy(function(index, element) {
this.createOptionValue(element);
}, this));
},
// Add the select all option to the select.
buildSelectAll: function() {
var alreadyHasSelectAll = this.$select[0][0] ? this.$select[0][0].value == this.options.selectAllValue : false;
// If options.includeSelectAllOption === true, add the include all checkbox.
if (this.options.includeSelectAllOption && this.options.multiple && !alreadyHasSelectAll) {
this.$select.prepend('<option value="' + this.options.selectAllValue + '">' + this.options.selectAllText + '</option>');
}
},
// Build and bind filter.
buildFilter: function() {
// Build filter if filtering OR case insensitive filtering is enabled and the number of options exceeds (or equals) enableFilterLength.
if (this.options.enableFiltering || this.options.enableCaseInsensitiveFiltering) {
var enableFilterLength = Math.max(this.options.enableFiltering, this.options.enableCaseInsensitiveFiltering);
if (this.$select.find('option').length >= enableFilterLength) {
this.$filter = $(this.templates.filter);
$('input', this.$filter).attr('placeholder', this.options.filterPlaceholder);
this.$ul.prepend(this.$filter);
this.$filter.val(this.query).on('click', function(event) {
event.stopPropagation();
}).on('keydown', $.proxy(function(event) {
// This is useful to catch "keydown" events after the browser has updated the control.
clearTimeout(this.searchTimeout);
this.searchTimeout = this.asyncFunction($.proxy(function() {
if (this.query != event.target.value) {
this.query = event.target.value;
$.each($('li', this.$ul), $.proxy(function(index, element) {
var value = $('input', element).val();
if (value != this.options.selectAllValue) {
var text = $('label', element).text();
var value = $('input', element).val();
if (value && text && value != this.options.selectAllValue) {
// by default lets assume that element is not
// interesting for this search
var showElement = false;
var filterCandidate = '';
if ((this.options.filterBehavior == 'text' || this.options.filterBehavior == 'both')) {
filterCandidate = text;
}
if ((this.options.filterBehavior == 'value' || this.options.filterBehavior == 'both')) {
filterCandidate = value;
}
if (this.options.enableCaseInsensitiveFiltering && filterCandidate.toLowerCase().indexOf(this.query.toLowerCase()) > -1) {
showElement = true;
}
else if (filterCandidate.indexOf(this.query) > -1) {
showElement = true;
}
if (showElement) {
$(element).show();
}
else {
$(element).hide();
}
}
}
}, this));
}
}, this), 300, this);
}, this));
}
}
},
// Destroy - unbind - the plugin.
destroy: function() {
this.$container.remove();
this.$select.show();
},
// Refreshs the checked options based on the current state of the select.
refresh: function() {
$('option', this.$select).each($.proxy(function(index, element) {
var $input = $('li input', this.$ul).filter(function() {
return $(this).val() == $(element).val();
});
if ($(element).is(':selected')) {
$input.prop('checked', true);
if (this.options.selectedClass) {
$input.parents('li').addClass(this.options.selectedClass);
}
}
else {
$input.prop('checked', false);
if (this.options.selectedClass) {
$input.parents('li').removeClass(this.options.selectedClass);
}
}
if ($(element).is(":disabled")) {
$input.attr('disabled', 'disabled').prop('disabled', true).parents('li').addClass('disabled');
}
else {
$input.prop('disabled', false).parents('li').removeClass('disabled');
}
}, this));
this.updateButtonText();
},
// Select an option by its value or multiple options using an array of values.
select: function(selectValues) {
if(selectValues && !$.isArray(selectValues)) {
selectValues = [selectValues];
}
for (var i = 0; i < selectValues.length; i++) {
var value = selectValues[i];
var $option = this.getOptionByValue(value);
var $checkbox = this.getInputByValue(value);
if (this.options.selectedClass) {
$checkbox.parents('li').addClass(this.options.selectedClass);
}
$checkbox.prop('checked', true);
$option.prop('selected', true);
this.options.onChange($option, true);
}
this.updateButtonText();
},
// Deselect an option by its value or using an array of values.
deselect: function(deselectValues) {
if(deselectValues && !$.isArray(deselectValues)) {
deselectValues = [deselectValues];
}
for (var i = 0; i < deselectValues.length; i++) {
var value = deselectValues[i];
var $option = this.getOptionByValue(value);
var $checkbox = this.getInputByValue(value);
if (this.options.selectedClass) {
$checkbox.parents('li').removeClass(this.options.selectedClass);
}
$checkbox.prop('checked', false);
$option.prop('selected', false);
this.options.onChange($option, false);
}
this.updateButtonText();
},
// Rebuild the whole dropdown menu.
rebuild: function() {
this.$ul.html('');
// Remove select all option in select.
$('option[value="' + this.options.selectAllValue + '"]', this.$select).remove();
// Important to distinguish between radios and checkboxes.
this.options.multiple = this.$select.attr('multiple') == "multiple";
this.buildSelectAll();
this.buildDropdownOptions();
this.updateButtonText();
this.buildFilter();
},
// Build select using the given data as options.
dataprovider: function(dataprovider) {
var optionDOM = "";
dataprovider.forEach(function (option) {
optionDOM += '<option value="' + option.value + '">' + option.label + '</option>';
});
this.$select.html(optionDOM);
this.rebuild();
},
// Enable button.
enable: function() {
this.$select.prop('disabled', false);
this.$button.prop('disabled', false)
.removeClass('disabled');
},
// Disable button.
disable: function() {
this.$select.prop('disabled', true);
this.$button.prop('disabled', true)
.addClass('disabled');
},
// Set options.
setOptions: function(options) {
this.options = this.mergeOptions(options);
},
// Get options by merging defaults and given options.
mergeOptions: function(options) {
return $.extend({}, this.defaults, options);
},
// Update button text and button title.
updateButtonText: function() {
var options = this.getSelected();
// First update the displayed button text.
$('button', this.$container).html(this.options.buttonText(options, this.$select));
// Now update the title attribute of the button.
$('button', this.$container).attr('title', this.options.buttonTitle(options, this.$select));
},
// Get all selected options.
getSelected: function() {
return $('option[value!="' + this.options.selectAllValue + '"]:selected', this.$select).filter(function() {
return $(this).prop('selected');
});
},
// Get the corresponding option by ts value.
getOptionByValue: function(value) {
return $('option', this.$select).filter(function() {
return $(this).val() == value;
});
},
// Get an input in the dropdown by its value.
getInputByValue: function(value) {
return $('li input', this.$ul).filter(function() {
return $(this).val() == value;
});
},
updateOriginalOptions: function() {
this.originalOptions = this.$select.clone()[0].options;
},
asyncFunction: function(callback, timeout, self) {
var args = Array.prototype.slice.call(arguments, 3);
return setTimeout(function() {
callback.apply(self || window, args);
}, timeout);
}
};
$.fn.multiselect = function(option, parameter) {
return this.each(function() {
var data = $(this).data('multiselect'), options = typeof option == 'object' && option;
// Initialize the multiselect.
if (!data) {
$(this).data('multiselect', ( data = new Multiselect(this, options)));
}
// Call multiselect method.
if ( typeof option == 'string') {
data[option](parameter);
}
});
};
$.fn.multiselect.Constructor = Multiselect;
// Automatically init selects by their data-role.
$(function() {
$("select[role='multiselect']").multiselect();
});
}(window.jQuery);
