Display content when ID has class using jQuery

Question

I am trying to create a series of resource boxes that will be displayed on page as an image and title.

When an image (resource) is selected (clicked on) a dropdown box containing a brief description of the resource will be displayed, and a button for more info.

When the resource is clicked on again it will display the full description of the resource, and two buttons: one to remove the info and one for less info.

I have used XSLT to select the content for each resource based upon the XML provided when a user inputs a resource.

XSLT:

<div id="newContainer">
<div class="hidden">
<xsl:value-of select="/Properties/Data/Group[@Name='Header']/Datum[@Name='Title']"/>
</div>
    <ul id="initialContent">
        <xsl:for-each select="/Properties/Data/Group[@Name='List Item']">
            <li>
                <xsl:attribute name="class">
                    <xsl:value-of select="Datum[@Name='Title']"/>
                </xsl:attribute>
                <a href="#">                
                        <img>
                            <xsl:attribute name="src">
                                <xsl:value-of select="Datum[@Name='Source']"/>
                            </xsl:attribute>
                            <xsl:attribute name="alt">
                                <xsl:value-of select="Datum[@Name='Alt']"/>
                              </xsl:attribute>                      
                        </img>  
            <xsl:value-of select="Datum[@Name='Title']"/>   
                </a>
            </li>
        </xsl:for-each>
    </ul>
</div>
<div id="briefDescription">
<xsl:if test="@class=Datum[@Name='Title']">
     <xsl:for-each select="/properties/Data/Group[@Name='List Item']">
        <a>         
        <xsl:value-of select="Datum[@Name='Description']"/>
        <xsl:value-of select="normalize-space(substring(title,1,50))" disable-output-escaping="yes"/>
    <xsl:if test="string-length(title) &gt; 50">..</xsl:if>         
        </a>
    </xsl:for-each>
</xsl:if>
</div>

XML:

<Data>
<Datum Exposed="true" ID="ResourceTitle" Name="Title" Type="String">Title</Datum>
<Group Exposed="true" ID="Resource" Name="List Item" Replicatable="true">
<Datum Exposed="true" ID="ResourceName" Name="Name" Type="String">Resource Name</Datum>
<Datum Exposed="true" ID="ResourceSource" Name="Source" Type="File"><![CDATA[$URL_PREFIX/assets/sites/hea1/pages/hea-building.jpg]]></Datum>
<Datum Exposed="true" ID="ResourceLink" Name="Link" Type="File"><![CDATA[Http://www.bbc.co.uk]]></Datum>
<Datum Exposed="true" ID="ResourceAlt" Name="Alt" Type="String">Alt Text</Datum>
<Datum Exposed="true" ID="ResourceDescription" Name="Description" Type="Textarea">Introductory Text</Datum>
</Group>
</Data>

I have then used jQuery to get the boxes to slide down, slide up, hide etc.

I am having trouble ensuring that the XSLT formats the correct resource information, when a resource is selected.

Can I use jQuery to identify a class and then use XSLT to check that class against an XML node? For example:

function getClassName() {

$('li').click(function(){
var chosenClass = $(this).attr('class');
alert(chosenClass);
});

}

<xsl:when test ="$chosenClass and Datum[@Name='Title']">

I have given the selected resources a unique ID and used the XSLT to set a var class name that is provided by the XML node name Name.

The following jQuery is what I have so far. It does what it should until I try and set the class at the id $('#briefDescription').

$(document).ready(function () {
getClassName();
displayContent();
infoMsgRemove();
removeInfo();
moreInfo();
});

var briefInfo = $('#briefDescription');
var moreInfo = $('#moreInfo');
var fullInfo = $('#fullDescription');
var newBriefInfo = newBriefInfo;

function getClassName() {

$('a').click(function () {
    var chosenClass = $(this).attr('class');
    var selectedClass = chosenClass;
    alert(selectedClass + ' chosen');

    briefInfo.addClass(chosenClass);
    var newBriefInfo = briefInfo.addClass(chosenClass);
    var createdBriefInfo = newBriefInfo;
    alert('class added'+ briefInfo.text());
});
}

function displayContent() {

$('#initialContent').click(function (e) {  

    if (newBriefInfo.is(':hidden')) {
        newBriefInfo.slideDown('fast');
        moreInfo.show('li');
    } else {
        fullInfo.slideDown('fast');
        moreInfo.hide('li');
    }
    e.preventDefault();
});
}

function moreInfo() {

$('#moreInfo').click(function () {
    if (fullInfo.is(':hidden')) {
        fullInfo.slideDown('fast');
        moreInfo.hide('li');
    }
});
}

function infoMsgRemove() {

$('#noInfo').click(function () {
    fullInfo.hide();
    briefInfo.hide();
    alert('msg hidden');
});
}

function removeInfo() {

$('#lessInfo').click(function () {
    fullInfo.slideUp('fast');
    moreInfo.show('li');
});
}

I have created a JSFiddle that hopefully goes someway to showing what i am trying to do.

In the function getClassName the alert;

alert('class added'+ briefInfo);

retuns 'class added [object object]'.

I think this is because the HTML is being populated by a string representation of an object?

Here is the work in progress fiddle.

Answer 1

The easiest way I think would be to give the 'buttons' a shared class and a custom id. Then use jQuery to read the custom id of the clicked buttonclass-item and use a naming policy on the class of the description to make that display correctly.

Html:

<a href="#" class="myResources" id="resource_1">
    <h2>resource 1</h2>
</a>

And Javascript/jQuery:

$(".myResources").click(function() {
//And use the same id as class of the description for easy targetting.
var resName = $(this).attr('id');
    $('.'+resName).show();
});

Hope this is something like what you we're looking for. Might not be the cleanest solution. HTML5 custom data-attributes might be a better fit.

Answer 2

If you want to check whether your element has a class or not, you can use jQuery's hasClass() function:

$('a').click(function () {
if( $(this).hasClass('yourClass') ) { 
  //Do whatever this class needs to do
else {
 // Do other stuff...

More information on the hasClass function can be found in the JQuery API Documentation

Answer 3

Had your tried to alert("class added "+$(briefInfo).attr("class"));

if you got the right alert then you can use your logic in this way by using the class.