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/**
* jQuery arrowSteps plugin
* Copyright Neil Kandalgaonkar, 2010
*
* This work is licensed under the terms of the GNU General Public License,
* version 2 or later.
* (see http://www.fsf.org/licensing/licenses/gpl.html).
* Derivative works and later versions of the code must be free software
* licensed under the same or a compatible license.
*
*
* DESCRIPTION
*
* Show users their progress through a series of steps, via a row of items that fit
* together like arrows. One item can be highlighted at a time.
*
*
* SYNOPSIS
*
* <ul id="robin-hood-daffy">
* <li id="guard"><div>Guard!</div></li>
* <li id="turn"><div>Turn!</div></li>
* <li id="parry"><div>Parry!</div></li>
* <li id="dodge"><div>Dodge!</div></li>
* <li id="spin"><div>Spin!</div></li>
* <li id="ha"><div>Ha!</div></li>
* <li id="thrust"><div>Thrust!</div></li>
* </ul>
*
* <script>
* $( '#robin-hood-daffy' ).arrowSteps();
*
* $( '#robin-hood-daffy' ).arrowStepsHighlight( '#guard' );
* // 'Guard!' is highlighted.
*
* // ... user completes the 'guard' step ...
*
* $( '#robin-hood-daffy' ).arrowStepsHighlight( '#turn' );
* // 'Turn!' is highlighted.
* </script>
*
*/
( function ( $ ) {
$.fn.arrowSteps = function () {
var $steps, width, arrowWidth,
paddingSide = $( 'body' ).hasClass( 'rtl' ) ? 'padding-left' : 'padding-right';
this.addClass( 'arrowSteps' );
$steps = this.find( 'li' );
width = parseInt( 100 / $steps.length, 10 );
$steps.css( 'width', width + '%' );
// Every step except the last one has an arrow pointing forward:
// at the right hand side in LTR languages, and at the left hand side in RTL.
// Also add in the padding for the calculated arrow width.
arrowWidth = parseInt( this.outerHeight(), 10 );
$steps.filter( ':not(:last-child)' ).addClass( 'arrow' )
.find( 'div' ).css( paddingSide, arrowWidth.toString() + 'px' );
this.data( 'arrowSteps', $steps );
return this;
};
$.fn.arrowStepsHighlight = function ( selector ) {
var $previous,
$steps = this.data( 'arrowSteps' );
$.each( $steps, function ( i, step ) {
var $step = $( step );
if ( $step.is( selector ) ) {
if ($previous) {
$previous.addClass( 'tail' );
}
$step.addClass( 'head' );
} else {
$step.removeClass( 'head tail lasthead' );
}
$previous = $step;
} );
};
}( jQuery ) );
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