CODEWITHSUNDEEP
javascriptjqueryhtmlcss
Clodoaldo Neto
Clodoaldo Neto

Reputation: 125434

Three way class toggle

I have two radio buttons to toggle two alternative texts and it works:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
   "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"
            type="text/javascript"></script>
    <style type="text/css">
        .displayNone { display: none; }
    </style>
</head>

<body>

    <input type="radio" name="toggle" />A
    <input type="radio" name="toggle" />B

    <span class="A">A</span>
    <span class="B displayNone">B</span>

<script type="text/javascript">
    $('input[name=toggle]').change(function() {
        $('.A, .B').toggleClass('displayNone');
    })
</script>

</body>
</html>

Now I want to make it three radio buttons to toggle between three texts:

<input type="radio" name="toggle" />A
<input type="radio" name="toggle" />B
<input type="radio" name="toggle" />C

<span class="A">A</span>
<span class="B displayNone">B</span>
<span class="C displayNone">C</span>

The solution I'm thinking about looks too verbose. What would be the clean one?

Upvotes: 3

Views: 1206

Answers (5)

David Thomas
David Thomas

Reputation: 253416

One further approach:

$('input:radio[name="toggle"]').change(
    function(){
        $('span')
            .eq($(this).index())
            .removeClass('displayNone')
            .siblings('span')
            .addClass('displayNone');
    });​

JS Fiddle demo.

Edited to add, for the more up-to-date browsers, a pure CSS means of accomplishing the same:

input[type=radio]:nth-child(1):checked ~ span:nth-of-type(1),
input[type=radio]:nth-child(2):checked ~ span:nth-of-type(2),
input[type=radio]:nth-child(3):checked ~ span:nth-of-type(3){
    height: 1em;
    width: 100%;
    background-color: #f90;
    -webkit-transition: all 1s linear;
    -ms-transition: all 1s linear;
    -o-transition: all 1s linear;
    -moz-transition: all 1s linear;
    transition: all 1s linear;
}

span {
    display: block;
    overflow: hidden;
    height: 0;
    width: 0;
    background-color: #fff;
    -webkit-transition: all 1s linear;
    -ms-transition: all 1s linear;
    -o-transition: all 1s linear;
    -moz-transition: all 1s linear;
    transition: all 1s linear;
}​

JS Fiddle demo.

jQuery References:

CSS References:

Upvotes: 7

ming_codes
ming_codes

Reputation: 2922

Just for fun, this may not suit your needs exactly. Here's a pure CSS solution.

span {
  display: none;
}

​input[type="radio"]:checked + * + * + * {
  display: inline;
}​​

​

Upvotes: 2

Shawn Chin
Shawn Chin

Reputation: 86924

And here's another way to do it (demo: http://jsfiddle.net/bauKH/)

<input type="radio" name="toggle" value="A" checked="true"/>A
<input type="radio" name="toggle" value="B"/>B
<input type="radio" name="toggle" value="C"/>C

<br />
<span id="A" class="data">A</span>
<span id="B" class="data displayNone">B</span>
<span id="C" class="data displayNone">C</span>

$('input[name=toggle]').change(function() {
    var newval = this.value;
    $(".data").each(function() {
        $(this).toggleClass('displayNone', this.id != newval);
    });                                                    
});

The takeaway message here would be that you can use the optional second argument in .toggleClass() to specify whether the class should be added or removed.

Upvotes: 1

j08691
j08691

Reputation: 207943

Here's one method: jsFiddle example.

$('input[name=toggle]').change(function() {
    $('span').addClass('displayNone').filter('span:eq(' + $(this).index() + ')').removeClass('displayNone');
})​

Upvotes: 3

lynks
lynks

Reputation: 5689

Give all your text spans the same class, but different IDs:

<span class="foo" id="span_a">A</span>
<span class="foo displayNone" id="span_b">B</span>
<span class="foo displayNone" id="span_c">C</span>

Then hide them all before displaying the one you want

function show(x) {
    $(".foo").hide();
    $("#" + x).show();
}

Edit:

Or, you can use jQuery's not selector if you are seeing a flicker:

$(".foo").not("#" + x).hide();
$("#" + x).show();

Upvotes: 0

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