Nested parent/child checkboxes - working solution need adjustment help for Bootstrap
I have been looking for a 'complete' solution to nesting parent child checkboxes that change state correctly based on a hierarchy.
Most 'solutions' do not work or only work to one level. They also require you to name the checkboxes in a particular way.
This Stack Overflow discussion covers the main points but also provide a good solution discovered by Rory here.
I have tested it within my development project and it works perfectly standalone. However, I am using Bootstrap 2.x and for checkboxes
I have a JSFiddle which shows the working example code, then my version with a disabled parent checkbox and then the bootsrap code version which does not work.
<!DOCTYPE html>
<body>
<!-- Raw working example from site http://css-tricks.com/indeterminate-checkboxes/ -->
<b>Raw working example</b>
<p>
<ul>
<li>
<input type="checkbox" name="tall" id="tall">
<label for="tall">Tall Things</label>
<ul>
<li>
<input type="checkbox" name="tall-1" id="tall-1">
<label for="tall-1">Buildings</label>
</li>
<li>
<input type="checkbox" name="tall-2" id="tall-2">
<label for="tall-2">Giants</label>
<ul>
<li>
<input type="checkbox" name="tall-2-1" id="tall-2-1">
<label for="tall-2-1">Andre</label>
</li>
<li>
<input type="checkbox" name="tall-2-2" id="tall-2-2">
<label for="tall-2-2">Paul Bunyan</label>
<ul>
<li>
<input type="checkbox" name="tall-2-2-1" id="tall-2-2-1">
<label for="tall-2-2-1">Son</label>
</li>
<li>
<input type="checkbox" name="tall-2-2-2" id="tall-2-2-2">
<label for="tall-2-2-2">Daughter</label>
</li>
</ul>
</li>
</ul>
</li>
<li>
<input type="checkbox" name="tall-3" id="tall-3">
<label for="tall-3">Two sandwiches</label>
</li>
</ul>
</li>
<li>
<input type="checkbox" name="short" id="short">
<label for="short">Short Things</label>
<ul>
<li>
<input type="checkbox" name="short-1" id="short-1">
<label for="short-1">Smurfs</label>
</li>
<li>
<input type="checkbox" name="short-2" id="short-2">
<label for="short-2">Mushrooms</label>
</li>
<li>
<input type="checkbox" name="short-3" id="short-3">
<label for="short-3">One Sandwich</label>
</li>
</ul>
</li>
</ul>
<hr>
<!-- Non Bootstrap Example -->
<b>My initial code example - Is Working</b>
<p>
<ul>
<li>
<input type="checkbox" name="" value="" disabled><strong>Ford</strong>
<ul>
<li>
<input type="checkbox" name="" value="">Fiesta</label>
</li>
<li>
<input type="checkbox" name="" value="">Focus</label>
</li>
<li>
<input type="checkbox" name="" value="">Mondeo</label>
</li>
</ul>
</li>
<li>
<input type="checkbox" name="" value="" disabled><strong>Vauxhall</strong>
<ul>
<li>
<input type="checkbox" name="" value="">Corsa</label>
</li>
<li>
<input type="checkbox" name="" value="">Astra</label>
</li>
<li>
<input type="checkbox" name="" value="">Vectra</label>
</li>
</ul>
</li>
</ul>
<hr>
<!-- Bootstrap Example -->
<b>Bootstrap based code example - Not Working</b>
<p>
<ul>
<li>
<label class="checkbox">
<input type="checkbox" name="" value="" disabled><strong>Ford</strong>
</label>
<ul>
<li>
<label class="checkbox">
<input type="checkbox" name="" value="">Fiesta</label>
</li>
<li>
<label class="checkbox">
<input type="checkbox" name="" value="">Focus</label>
</li>
<li>
<label class="checkbox">
<input type="checkbox" name="" value="">Mondeo</label>
</li>
</ul>
</li>
<li>
<label class="checkbox">
<input type="checkbox" name="" value="" disabled><strong>Vauxhall</strong>
</label>
<ul>
<li>
<label class="checkbox">
<input type="checkbox" name="" value="">Corsa</label>
</li>
<li>
<label class="checkbox">
<input type="checkbox" name="" value="">Astra</label>
</li>
<li>
<label class="checkbox">
<input type="checkbox" name="" value="">Vectra</label>
</li>
</ul>
</li>
</ul>
$(function () {
// Apparently click is better chan change? Cuz IE?
$('input[type="checkbox"]').change(function (e) {
var checked = $(this).prop("checked"),
container = $(this).parent(),
siblings = container.siblings();
container.find('input[type="checkbox"]').prop({
indeterminate: false,
checked: checked
});
function checkSiblings(el) {
var parent = el.parent().parent(),
all = true;
el.siblings().each(function () {
return all = ($(this).children('input[type="checkbox"]').prop("checked") === checked);
});
if (all && checked) {
parent.children('input[type="checkbox"]').prop({
indeterminate: false,
checked: checked
});
checkSiblings(parent);
} else if (all && !checked) {
parent.children('input[type="checkbox"]').prop("checked", checked);
parent.children('input[type="checkbox"]').prop("indeterminate", (parent.find('input[type="checkbox"]:checked').length > 0));
checkSiblings(parent);
} else {
el.parents("li").children('input[type="checkbox"]').prop({
indeterminate: true,
checked: false
});
}
}
checkSiblings(container);
});
});
My understanding is that the code needs to be changed somewhere to use parents or closest. Can someone who is a much better code please help identify where the change needs to happen to get the Bootstrap version working.
Answer
you can try something like this
$(function () {
$('input[type="checkbox"]').change(function (e) {
var checked = $(this).prop("checked"),
container = $(this).closest("li"),//get closest li instead of parent
siblings = container.siblings();
container.find('input[type="checkbox"]').prop({
indeterminate: false,
checked: checked
});
function checkSiblings(el) {
var parent = el.parent().parent(),
all = true,
parentcheck=parent.children("label");//get the label that contains the disabled checkbox
el.siblings().each(function () {
return all = ($(this).find('input[type="checkbox"]').prop("checked") === checked);
});
//use parentcheck instead of parent to get the children checkbox
if (all && checked) {
parentcheck.children('input[type="checkbox"]').prop({
indeterminate: false,
checked: checked
});
checkSiblings(parent);
} else if (all && !checked) {
parentcheck.children('input[type="checkbox"]').prop("checked", checked);
parentcheck.children('input[type="checkbox"]').prop("indeterminate", (parent.find('input[type="checkbox"]:checked').length > 0));
checkSiblings(parent);
} else {
parentcheck.children('input[type="checkbox"]').prop({
indeterminate: true,
checked: false
});
}
}
checkSiblings(container);
});
});