2 * jQuery arrowSteps plugin
3 * Copyright Neil Kandalgaonkar, 2010
5 * This work is licensed under the terms of the GNU General Public License,
7 * (see http://www.fsf.org/licensing/licenses/gpl.html).
8 * Derivative works and later versions of the code must be free software
9 * licensed under the same or a compatible license.
14 * Show users their progress through a series of steps, via a row of items that fit
15 * together like arrows. One item can be highlighted at a time.
20 * <ul id="robin-hood-daffy">
21 * <li id="guard"><div>Guard!</div></li>
22 * <li id="turn"><div>Turn!</div></li>
23 * <li id="parry"><div>Parry!</div></li>
24 * <li id="dodge"><div>Dodge!</div></li>
25 * <li id="spin"><div>Spin!</div></li>
26 * <li id="ha"><div>Ha!</div></li>
27 * <li id="thrust"><div>Thrust!</div></li>
31 * $( '#robin-hood-daffy' ).arrowSteps();
33 * $( '#robin-hood-daffy' ).arrowStepsHighlight( '#guard' );
34 * // 'Guard!' is highlighted.
36 * // ... user completes the 'guard' step ...
38 * $( '#robin-hood-daffy' ).arrowStepsHighlight( '#turn' );
39 * // 'Turn!' is highlighted.
44 $.fn.arrowSteps = function () {
45 var $steps, width, arrowWidth,
46 paddingSide = $( 'body' ).hasClass( 'rtl' ) ? 'padding-left' : 'padding-right';
48 this.addClass( 'arrowSteps' );
49 $steps = this.find( 'li' );
51 width = parseInt( 100 / $steps.length, 10 );
52 $steps.css( 'width', width + '%' );
54 // Every step except the last one has an arrow pointing forward:
55 // at the right hand side in LTR languages, and at the left hand side in RTL.
56 // Also add in the padding for the calculated arrow width.
57 arrowWidth = parseInt( this.outerHeight(), 10 );
58 $steps.filter( ':not(:last-child)' ).addClass( 'arrow' )
59 .find( 'div' ).css( paddingSide, arrowWidth.toString() + 'px' );
61 this.data( 'arrowSteps', $steps );
65 $.fn.arrowStepsHighlight = function ( selector ) {
67 $steps = this.data( 'arrowSteps' );
68 $.each( $steps, function ( i, step ) {
69 var $step = $( step );
70 if ( $step.is( selector ) ) {
72 $previous.addClass( 'tail' );
74 $step.addClass( 'head' );
76 $step.removeClass( 'head tail lasthead' );