Develop Reference

How to open all top level accordions but keep nested accordions closed?

I have one accordion where all items have another nested accordion. I'm trying to open the first level of accordions by clicking on the button, without opening nested accordions.
I would like to open all "Groups"-accordions and keep sub-accordions "Count 1" and "Count 2" closed.
How can I do that?
$(document).ready(function() {
// Collapse inner groups:
$('#p-lists').on('hide', function(e) {
// Force a collapse (.hide() doesn't seem to work properly here but is unnecessary anyway):
$(e.target).find('.accordion-body')
.removeClass('in')
.attr('style', '');
});
// Make sure parent groups are also opened:
$('#p-lists').on('show', function(e) {
var $parent = $(e.target).parents('.accordion-body');
// Collapse all siblings:
$parent.parents('.accordion-group')
.prevAll('.accordion-group').find('.accordion-body').collapse('hide')
.nextAll('.accordion-group').find('.accordion-body').collapse('hide');
// Then open THIS parent:
$parent.collapse('show');
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" rel="stylesheet" />
<h3>Accordion test</h3>
<button type="button" class="btn btn-danger" data-toggle="collapse" data-target="#p-counts-2">Open counts 2</button>
<div class="accordion" id="p-lists">
<div class="accordion-group">
<div class="accordion-heading">
<a class="accordion-toggle" data-toggle="collapse" data-parent="#p-lists" href="#p-lists-1">
<h5>Group 1</h5>
</a>
</div>
<div id="p-lists-1" class="accordion-body collapse">
<div class="accordion-inner">Body p1</div>
</div>
</div>
<div class="accordion-group">
<div class="accordion-heading">
<a class="accordion-toggle" data-toggle="collapse" data-parent="#p-lists" href="#p-lists-2">
<h5>Group 2</h5>
</a>
</div>
<div id="p-lists-2" class="accordion-body collapse">
<div class="accordion-inner">
<h4>Inner accordion</h4>
<!-- Start of inner -->
<div class="accordion" id="p-counts">
<div class="accordion-group">
<div class="accordion-heading">
<a class="accordion-toggle" data-toggle="collapse" data-parent="#p-counts" href="#p-counts-1">
<h5>Counts 1</h5>
</a>
</div>
<div id="p-counts-1" class="accordion-body collapse">
<div class="accordion-inner">Counts p1</div>
</div>
</div>
<div class="accordion-group">
<div class="accordion-heading">
<a class="accordion-toggle" data-toggle="collapse" data-parent="#p-counts" href="#p-counts-2">
<h5>Counts 2</h5>
</a>
</div>
<div id="p-counts-2" class="accordion-body collapse">
<div class="accordion-inner">Counts p2</div>
</div>
</div>
</div>
<!-- end of inner -->
</div>
</div>
</div>
<div class="accordion-group">
<div class="accordion-heading">
<a class="accordion-toggle" data-toggle="collapse" data-parent="#p-lists" href="#p-lists-3">
<h5>Group 3</h5>
</a>
</div>
<div id="p-lists-3" class="accordion-body collapse">
<div class="accordion-inner">Body p3</div>
</div>
</div>
</div>
View on jsFiddle

So,
on your button click, we check if any of the sub-accordions have been opened, if yes, we close them;
on the normal accordion panel click, we wouldn't intentionally close the sub-accordions;
Snippet below:
$(document).ready(function() {
$('#myBtn').click(function() {
($('#group1').hasClass('collapsed')) ? $("a#group1").trigger('click'): '';
($('#group2').hasClass('collapsed')) ? $("a#group2").trigger('click'): '';
($('#group3').hasClass('collapsed')) ? $("a#group3").trigger('click'): '';
$("a.accordion-toggle-inner:not('.collapsed')").each(function() {
$(this).trigger('click');
});
});
});
#group1,
#group2,
#group3 {
color: red;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js"></script>
<div class="container">
<button id='myBtn' type="button" class="btn btn-warning" data-toggle="collapse"> open the first level of
accordions by clicking on the button, without opening nested accordions</button>
<div class="accordion">
<a class="accordion-toggle collapsed" data-toggle="collapse" id='group1' href="#p-lists-1">
<h5>Group 1</h5>
</a>
<div id="p-lists-1" class="accordion-body collapse">
Body p1
</div>
<div class="accordion-group">
<a id='group2' class="accordion-toggle collapsed" data-toggle="collapse" href="#p-lists-2">
<h5>Group 2</h5>
</a>
<div id="p-lists-2" class="accordion-body collapse">
<div class="accordion-inner">
<h4>Inner accordion</h4>
<!-- Start of inner -->
<div class="accordion" id="p-counts">
<div class="accordion-group">
<div class="accordion-heading">
<a class="accordion-toggle collapsed accordion-toggle-inner" data-toggle="collapse" href="#p-counts-1">
<h5>Counts 1</h5>
</a>
</div>
<div id="p-counts-1" class="accordion-body collapse">
<div class="accordion-inner">Counts p1</div>
</div>
</div>
<a class="accordion-toggle collapsed accordion-toggle-inner" data-toggle="collapse" data-parent="#p-counts" href="#p-counts-2">
<h5>Counts 2</h5>
</a>
<div id="p-counts-2" class="accordion-body collapse">
Counts p2
</div>
</div>
<!-- end of inner -->
</div>
</div>
</div>
<a class="accordion-toggle collapsed" data-toggle="collapse" id='group3' href="#p-lists-3">
<h5>Group 3</h5>
</a>
<div id="p-lists-3" class="accordion-body collapse"> Body p3</div>
</div>
UPDATE: in light of questioner's comment above

collapse in hide or show do it from js

I write some control unit that switch couple of containers by using "collapse" class from bootstrap like list with anchors that has special for my hidden containers "href" attribute, here is example of two list elements that can describe behaviour:
<div id="my_list">
<ul>
<li class="active">
<a onclick="return false" data-parent="#switch_tables" href="#collapse1">One</a>
</li>
<li>
<a onclick="return false" data-parent="#switch_tables" href="#collapse2">Two</a>
</li>
</div>
Then in html code i use some container:
<div id="switch_tables" class="panel">
<div id="collapse1" class="collapse in"> SOME IN HERE </div>
<div id="collapse2" class="collapse"> SOMETHING ELSE</div>
</div>
So when i use this stuff and first elemet of list is active the first container is shown too because i add "in" class after "collapse" class. When I switch to the other list element, then first container should dissappear and the second one should be shown. Of course I has more list links and more hidden containers than just 2 but it's just an example. The thing that I want to do is to prevent default behaviour and to forbid active elemet to hide by clicking on it.
So I switch the "active" list element by clicking on list items and also show or hide exact container that has same id that the list has, so the containers is linked with list items, this thing is done by js code:
$(function(){
$('ul li a').on('click', function(){
$(this).parent().addClass('active').siblings().removeClass('active');
var to_toggle = $(this).attr('href');
$('.collapse.in').collapse('hide');
$(to_toggle+':not(".in")').collapse('show');
});
});
And now I see when I switch between list items, the containers appear and hide correctly.
When I click on second link, I see how first container is hiding and the second one is appear, and vice versa.
Idea is that if there is open containers, the ones that has "collapse in" class should be closed by js, but how to forbid closing an active container?
For example I click on second link in list, my first container is hiding, second one is appear, I click on second link again and second container dissappear so I dont see anything on screen. but the list item is active.
So the question is how to modify js so only one container can have "collapse in" class at a time, and nothing can remove it until the user will switch it to other container so class "in" will move to other container that is coming from anchor attribute "href" and can't be removed in this place?

If you are using bootstrap , so you can use bootstrap collapse feature for example:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Collapse</title>
<link rel="stylesheet" href="../../../dist/css/bootstrap.min.css">
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<div class="container">
<div class="page-header">
<h1>Collapse <small>Bootstrap Visual Test</small></h1>
</div>
<div class="panel-group" id="accordion">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
Collapsible Group Item #1
</a>
</h4>
</div>
<div id="collapseOne" class="panel-collapse collapse in">
<div class="panel-body">
Collapse one content
</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">
Collapsible Group Item #2
</a>
</h4>
</div>
<div id="collapseTwo" class="panel-collapse collapse">
<div class="panel-body">
Collapse two content
</div>
</div>
</div>
</div>
</div>
<!-- JavaScript Includes -->
<script src="../vendor/jquery.min.js"></script>
<script src="../../transition.js"></script>
<script src="../../collapse.js"></script>
</body>
</html>

So I solve my problem by point from #Zigri2612 but use little different approach:
$(function(){
$('ul li a').on('click', function(){
$(this).parent().addClass('active').siblings().removeClass('active');
var to_toggle = $(this).attr('href');
$("#switch_tables").find('div').each(function(){
if ( ('#'+$(this).attr("id")) != to_toggle )
$(this).filter('.collapse.in').collapse('hide');
});
$(to_toggle+':not(".in")').collapse('show');
});
});

Here is a working example for collapse hide and show. here the plus and minus icons are changing. you can alter it for your need.
$(document).ready(function(){
// Add minus icon for collapse element which is open by default
$(".collapse.show").each(function(){
$(this).prev(".card-header").find(".fa").addClass("fa-minus").removeClass("fa-plus");
});
// Toggle plus minus icon on show hide of collapse element
$(".collapse").on('show.bs.collapse', function(){
$(this).prev(".card-header").find(".fa").removeClass("fa-plus").addClass("fa-minus");
}).on('hide.bs.collapse', function(){
$(this).prev(".card-header").find(".fa").removeClass("fa-minus").addClass("fa-plus");
});
});
.bs-example{
margin: 20px;
}
.accordion .fa{
margin-right: 0.5rem;
}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js#1.16.1/dist/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
<style>
</style>
<div class="bs-example">
<div class="accordion" id="accordionExample">
<div class="card">
<div class="card-header" id="headingOne">
<h2 class="mb-0">
<button type="button" class="btn btn-link" data-toggle="collapse" data-target="#collapseOne"><i class="fa fa-plus"></i> What is HTML?</button>
</h2>
</div>
<div id="collapseOne" class="collapse" aria-labelledby="headingOne" data-parent="#accordionExample">
<div class="card-body">
<p>HTML stands for HyperText Markup Language. HTML is the standard markup language for describing the structure of web pages. Learn more.</p>
</div>
</div>
</div>
<div class="card">
<div class="card-header" id="headingTwo">
<h2 class="mb-0">
<button type="button" class="btn btn-link collapsed" data-toggle="collapse" data-target="#collapseTwo"><i class="fa fa-plus"></i> What is Bootstrap?</button>
</h2>
</div>
<div id="collapseTwo" class="collapse show" aria-labelledby="headingTwo" data-parent="#accordionExample">
<div class="card-body">
<p>Bootstrap is a sleek, intuitive, and powerful front-end framework for faster and easier web development. It is a collection of CSS and HTML conventions. Learn more.</p>
</div>
</div>
</div>
<div class="card">
<div class="card-header" id="headingThree">
<h2 class="mb-0">
<button type="button" class="btn btn-link collapsed" data-toggle="collapse" data-target="#collapseThree"><i class="fa fa-plus"></i> What is CSS?</button>
</h2>
</div>
<div id="collapseThree" class="collapse" aria-labelledby="headingThree" data-parent="#accordionExample">
<div class="card-body">
<p>CSS stands for Cascading Style Sheet. CSS allows you to specify various style properties for a given HTML element such as colors, backgrounds, fonts etc. Learn more.</p>
</div>
</div>
</div>
</div>
</div>

how to check if "true or false = expanded area?"

I have the following list in bootstrap
<i class="fa fa-plus rgh-i" data-toggle="collapse" data-target="#field-1"></i>
<i class="fa fa-plus rgh-i" data-toggle="collapse" data-target="#field-2"></i>
<i class="fa fa-plus rgh-i" data-toggle="collapse" data-target="#field-3"></i>
I use bootstrap to toggle a div.
Each element html i has a aria-expanded="true" when I want to show my div and aria-expanded="false" when I want to hide my div.
I want to check if there are already elements that aria-expanded="true"..and whether there next to hide the previous open.
$( "i" ).on( "click", function() {
if(There are elements of that property aria-expanded="true")
{
hide previous item before you open the current one
}else{
//something
}
});
I tried to make an example jsdfiddle but unfortunately we did ... I hope that you have understood what I want to do.
Basically ... I briefly before hiding the previous item to display the next and not be allowed to be open more than one element.
Thanks in advance!

if(this.attr('aria-expanded') === "true"){
// hide previous item before you open the current one
}

You need to use attribute equals selector:
Selects elements that have the specified attribute with a value exactly equal to a certain value
var areaexpandedtrue = $('[aria-expanded=true]');
if(areaexpandedtrue.length){
areaexpandedtrue.hide();
}

you can also get the value first, and then compare.
var value = $('#aria-expanded').val(); // jQuery func.
if (value =='true'){
//do some stuff
}
else{
//do some stuff
}

If you are trying to make accordion in bootstrap then try this.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Example of Bootstrap 3 Accordion</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap-theme.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<style type="text/css">
.bs-example{
margin: 20px;
}
</style>
</head>
<body>
<div class="bs-example">
<div class="panel-group" id="accordion">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">1. What is HTML?</a>
</h4>
</div>
<div id="collapseOne" class="panel-collapse collapse in">
<div class="panel-body">
<p>HTML stands for HyperText Markup Language. HTML is the main markup language for describing the structure of Web pages. Learn more.</p>
</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">2. What is Bootstrap?</a>
</h4>
</div>
<div id="collapseTwo" class="panel-collapse collapse">
<div class="panel-body">
<p>Bootstrap is a powerful front-end framework for faster and easier web development. It is a collection of CSS and HTML conventions. Learn more.</p>
</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseThree">3. What is CSS?</a>
</h4>
</div>
<div id="collapseThree" class="panel-collapse collapse">
<div class="panel-body">
<p>CSS stands for Cascading Style Sheet. CSS allows you to specify various style properties for a given HTML element such as colors, backgrounds, fonts etc. Learn more.</p>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
you can write your code by referencing this.

<i class="test fa fa-plus rgh-i" data-toggle="collapse" aria-expanded="false" data-target="#field-1"></i>
This jquery call returns boolean if aria-expanded is true or false, if you use a jquery onclick you can pass the first parameter as this.
$('.test').attr('aria-expanded');
$( ".test" ).click(function() {
if ($(this).attr('aria-expanded')) {
//your code here
} else {
//your code here
}
});

Show/hide element using jQuery

I am trying to add/remove a class of an element by clicking on a header. The problem I am facing is that the div I am targeting to show does not have an unique class, no ID and is on the same level as the header I am clicking on:
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" href="#text-background" data-parent="#settings-accordeon" class="collapsed">achtergrond</a>
</h4>
</div>
<div id="text-background" class="panel-collapse collapse">
~~ Something in in it.
</div>
</div>
I have 4 of these divs below each other.
I am trying to find the right selector in jQuery to be able to do the following:
Click on div with class: "panel-heading"
Select the div with the class: "panel-collapse collapse"
Add a class to this div called: "in"
This is what I got so far:
$('.panel-heading').click(function() {
$('.panel-collapse').addClass('in');
});
But because I have multiple div's with this class, it opens them all...

Now you can try to this
$('.panel-heading').click(function() {
$('.panel-collapse').removeClass('in');
$(this).next('.panel-collapse').addClass('in');
});
Demo
$(document).ready(function(){
$('.panel-heading').click(function() {
$('.panel-collapse').removeClass('in');
$(this).next('.panel-collapse').addClass('in');
});
});
.in{background:red;}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.1/jquery.min.js"></script>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" href="#text-background" data-parent="#settings-accordeon" class="collapsed">achtergrond</a>
</h4>
</div>
<div id="text-background" class="panel-collapse collapse">
~~ Something in in it.
</div>
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" href="#text-background" data-parent="#settings-accordeon" class="collapsed">achtergrond</a>
</h4>
</div>
<div id="text-background" class="panel-collapse collapse">
~~ Something in in it.
</div>
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" href="#text-background" data-parent="#settings-accordeon" class="collapsed">achtergrond</a>
</h4>
</div>
<div id="text-background" class="panel-collapse collapse">
~~ Something in in it.
</div>
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" href="#text-background" data-parent="#settings-accordeon" class="collapsed">achtergrond</a>
</h4>
</div>
<div id="text-background" class="panel-collapse collapse">
~~ Something in in it.
</div>
</div>

This will help
$('.panel-collapse.collapse').addClass('in');
This will only select the element which have both panel-collapse and collapse class .

Can you try:
$('.panel-heading').click(function() {
$(this).closest('.panel-collapse').addClass('in');
});

You can use this to refer current selector
jQuery
$('.panel-heading').click(function() {
$(this).siblings('.panel-collapse.collapse').addClass('in');
});

In order to select an element at the same level, you can use .next() function like this:
$('.panel-heading').on('click', function() {
$(this).next('.panel-collapse.collapse').addClass('in');
});
.in {
padding:10px;
border: 2px solid red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" href="#text-background" data-parent="#settings-accordeon" class="collapsed">achtergrond</a>
</h4>
</div>
<div id="text-background" class="panel-collapse collapse">
~~ Something in in it.
</div>
</div>

You can use next since the div of class panel-collapse collapse is a direct sibling to the panel-heading div, also use toggleClass which is better in your case:
$('.panel-heading').click(function() {
$(this).next('div').toggleClass('in');
});

You can use this selector instead
$('.panel .panel-collapse:first-child').addClass('in');
Or
$('.panel-heading').next('.panel-collapse').addClass('in);

You can change your code to apply to the immediate sibling of .panel-heading only as such:
$('.panel-heading').click(function() {
$(this).siblings('.panel-collapse').addClass('in');
});
Note the usage of this with refers to the element that raised the event (i.e. click event).

Basically you just need to find the current elements next sibling and add a class to it:
$('.panel-heading').click(function() {
$(this).next().addClass('in');
});
That will work if the panel-collapse is always after you panel-heading, else to be safe, you can do:
$('.panel-heading').click(function() {
$(this).next(".panel-collapse").addClass('in');
});

Use the reference of the clicked div and try this code :-
$('.panel-heading').click(function() {
$(this).next('.panel-collapse').addClass('in');
});
Hope this will work with your case.

Fix twitter bootstrap collapse icons, glyphicons

I changed twitter bootstrap's behaviour so the whole panel-heading would trigger the accordion. This results in the 'up' icon not changing in the 'down' icon anymore.
I am trying to fix this, but to no avail. How can I restore the correct behaviour of these icons?
<script>
$(document).ready(function() {
$('.accordion-toggle').on('click', function(e) {
e.preventDefault();
if (!$('.panel-collapse').hasClass('.collapsed')) {
console.log('toggle collapsed class')
$('.indicator').removeClass('.glyphicon-chevron-up');
$('.indicator').addClass('.glyphicon-chevron-down');
}
});
});
</script>
Here's the structure of one of my accordion panels:
<div class="panel panel-default">
<a href="#collapseOne" class="accordion-toggle" data-toggle="collapse" data-parent="#accordion">
<div class="panel-heading">
<i class="indicator glyphicon glyphicon-chevron-up pull-right"></i>
<h4 class="panel-title">
Title
</h4>
</div>
</a>
<div id="collapseOne" class="panel-collapse in">
<div class="panel-body">
<center>
<p>Some body..</p>
</center>
<form class="form-search">
<h2 class="form-search-heading">Some heading..</h2>
<input type="text" class="input-block-level" placeholder="Zoekterm" id="search-box">
<div id="resultaten"></div>
</form>
</div>
</div>
</div>
PS: I'm using Bootstrap 3.0.1

Don't use periods with the addClass and removeClass methods:
$('.indicator').removeClass('glyphicon-chevron-up').addClass('glyphicon-chevron-down');