| 1 | /*************************************************!
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| 2 | *
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| 3 | * project: liteAccordion - a horizontal accordion plugin for jQuery
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| 4 | * author: Nicola Hibbert
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| 5 | * url: http://nicolahibbert.com/liteaccordion-v2/
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| 6 | * demo: http://www.nicolahibbert.com/demo/liteAccordion/
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| 7 | *
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| 8 | * Version: 2.2.0
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| 9 | * Copyright: (c) 2010-2013 Nicola Hibbert
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| 10 | * Licence: MIT
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| 11 | *
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| 12 | **************************************************/
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| 13 |
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| 14 | ;(function($) {
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| 15 |
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| 16 | var LiteAccordion = function(elem, options) {
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| 17 |
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| 18 | var defaults = {
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| 19 | containerWidth : 960, // fixed (px)
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| 20 | containerHeight : 320, // fixed (px)
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| 21 | headerWidth : 48, // fixed (px)
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| 22 |
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| 23 | activateOn : 'click', // click or mouseover
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| 24 | firstSlide : 1, // displays slide (n) on page load
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| 25 | slideSpeed : 800, // slide animation speed
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| 26 | onTriggerSlide : function(e) {}, // callback on slide activate
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| 27 | onSlideAnimComplete : function() {}, // callback on slide anim complete
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| 28 |
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| 29 | autoPlay : false, // automatically cycle through slides
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| 30 | pauseOnHover : false, // pause on hover
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| 31 | cycleSpeed : 6000, // time between slide cycles
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| 32 | easing : 'swing', // custom easing function
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| 33 |
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| 34 | theme : 'basic', // basic, dark, light, or stitch
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| 35 | rounded : false, // square or rounded corners
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| 36 | enumerateSlides : false, // put numbers on slides
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| 37 | linkable : false // link slides via hash
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| 38 | },
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| 39 |
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| 40 | // merge defaults with options in new settings object
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| 41 | settings = $.extend({}, defaults, options),
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| 42 |
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| 43 | // 'globals'
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| 44 | slides = elem.children('ol').children('li'),
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| 45 | header = slides.children(':first-child'),
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| 46 | slideLen = slides.length,
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| 47 | slideWidth = settings.containerWidth - slideLen * settings.headerWidth,
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| 48 |
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| 49 | // public methods
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| 50 | methods = {
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| 51 |
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| 52 | // start elem animation
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| 53 | play : function(index) {
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| 54 | var next = core.nextSlide(index && index);
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| 55 |
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| 56 | if (core.playing) return;
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| 57 |
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| 58 | // start autoplay
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| 59 | core.playing = setInterval(function() {
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| 60 | header.eq(next()).trigger('click.liteAccordion');
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| 61 | }, settings.cycleSpeed);
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| 62 | },
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| 63 |
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| 64 | // stop elem animation
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| 65 | stop : function() {
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| 66 | clearInterval(core.playing);
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| 67 | core.playing = 0;
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| 68 | },
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| 69 |
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| 70 | // trigger next slide
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| 71 | next : function() {
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| 72 | methods.stop();
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| 73 | header.eq(core.currentSlide === slideLen - 1 ? 0 : core.currentSlide + 1).trigger('click.liteAccordion');
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| 74 | },
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| 75 |
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| 76 | // trigger previous slide
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| 77 | prev : function() {
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| 78 | methods.stop();
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| 79 | header.eq(core.currentSlide - 1).trigger('click.liteAccordion');
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| 80 | },
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| 81 |
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| 82 | // destroy plugin instance
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| 83 | destroy : function() {
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| 84 | // stop autoplay
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| 85 | methods.stop();
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| 86 |
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| 87 | // remove hashchange event bound to window
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| 88 | $(window).off('.liteAccordion');
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| 89 |
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| 90 | // remove generated styles, classes, data, events
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| 91 | elem
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| 92 | .attr('style', '')
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| 93 | .removeClass('liteAccordion basic dark light stitch')
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| 94 | .removeData('liteAccordion')
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| 95 | .off('.liteAccordion')
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| 96 | .find('li > :first-child')
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| 97 | .off('.liteAccordion')
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| 98 | .filter('.selected')
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| 99 | .removeClass('selected')
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| 100 | .end()
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| 101 | .find('b')
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| 102 | .remove();
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| 103 |
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| 104 | slides
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| 105 | .removeClass('slide')
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| 106 | .children()
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| 107 | .attr('style', '');
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| 108 | },
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| 109 |
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| 110 | // poke around the internals (NOT CHAINABLE)
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| 111 | debug : function() {
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| 112 | return {
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| 113 | elem : elem,
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| 114 | defaults : defaults,
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| 115 | settings : settings,
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| 116 | methods : methods,
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| 117 | core : core
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| 118 | };
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| 119 | }
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| 120 | },
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| 121 |
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| 122 | // core utility and animation methods
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| 123 | core = {
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| 124 |
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| 125 | // set style properties
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| 126 | setStyles : function() {
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| 127 | // set container height and width, theme and corner style
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| 128 | elem
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| 129 | .width(settings.containerWidth)
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| 130 | .height(settings.containerHeight)
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| 131 | .addClass('liteAccordion')
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| 132 | .addClass(settings.rounded && 'rounded')
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| 133 | .addClass(settings.theme);
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| 134 |
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| 135 | // set slide heights
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| 136 | slides
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| 137 | .addClass('slide')
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| 138 | .children(':first-child')
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| 139 | .height(settings.headerWidth);
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| 140 |
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| 141 | // set slide positions
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| 142 | core.setSlidePositions();
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| 143 | },
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| 144 |
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| 145 | // set initial positions for each slide
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| 146 | setSlidePositions : function() {
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| 147 | var selected = header.filter('.selected');
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| 148 |
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| 149 | // account for already selected slide
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| 150 | if (!selected.length) header.eq(settings.firstSlide - 1).addClass('selected');
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| 151 |
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| 152 | header.each(function(index) {
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| 153 | var $this = $(this),
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| 154 | left = index * settings.headerWidth,
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| 155 | margin = header.first().next(),
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| 156 | offset = parseInt(margin.css('marginLeft'), 10) || parseInt(margin.css('marginRight'), 10) || 0;
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| 157 |
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| 158 | // compensate for already selected slide on resize
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| 159 | if (selected.length) {
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| 160 | if (index > header.index(selected)) left += slideWidth;
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| 161 | } else {
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| 162 | if (index >= settings.firstSlide) left += slideWidth;
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| 163 | }
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| 164 |
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| 165 | // set each slide position
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| 166 | $this
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| 167 | .css('left', left)
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| 168 | .width(settings.containerHeight)
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| 169 | .next()
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| 170 | .width(slideWidth - offset)
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| 171 | .css({ left : left, paddingLeft : settings.headerWidth });
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| 172 |
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| 173 | // add number to bottom of tab
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| 174 | settings.enumerateSlides && $this.append('<b>' + (index + 1) + '</b>');
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| 175 |
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| 176 | });
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| 177 | },
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| 178 |
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| 179 | // bind events
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| 180 | bindEvents : function() {
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| 181 | // bind click and mouseover events
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| 182 | if (settings.activateOn === 'click') {
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| 183 | header.on('click.liteAccordion', core.triggerSlide);
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| 184 | } else if (settings.activateOn === 'mouseover') {
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| 185 | header.on('click.liteAccordion mouseover.liteAccordion', core.triggerSlide);
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| 186 | }
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| 187 |
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| 188 | // bind hashchange event
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| 189 | if (settings.linkable) {
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| 190 | $(window).on('hashchange.liteAccordion', function(e) {
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| 191 | var url = slides.filter(function() {
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| 192 | return $(this).attr('data-slide-name') === window.location.hash.split('#')[1];
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| 193 | });
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| 194 |
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| 195 | // if slide name exists
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| 196 | if (url.length) {
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| 197 | // trigger slide
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| 198 | core.triggerSlide.call(url.children('h2')[0], e);
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| 199 | }
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| 200 | });
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| 201 | }
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| 202 |
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| 203 | // pause on hover (can't use custom events with $.hover())
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| 204 | if (settings.pauseOnHover && settings.autoPlay) {
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| 205 | elem
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| 206 | .on('mouseover.liteAccordion', function() {
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| 207 | core.playing && methods.stop();
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| 208 | })
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| 209 | .on('mouseout.liteAccordion', function() {
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| 210 | !core.playing && methods.play(core.currentSlide);
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| 211 | });
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| 212 | }
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| 213 | },
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| 214 |
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| 215 | // counter for autoPlay (zero index firstSlide on init)
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| 216 | currentSlide : settings.firstSlide - 1,
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| 217 |
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| 218 | // next slide index
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| 219 | nextSlide : function(index) {
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| 220 | var next = index + 1 || core.currentSlide + 1;
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| 221 |
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| 222 | // closure
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| 223 | return function() {
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| 224 | return next++ % slideLen;
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| 225 | };
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| 226 | },
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| 227 |
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| 228 | // holds interval counter
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| 229 | playing : 0,
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| 230 |
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| 231 | slideAnimCompleteFlag : false,
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| 232 |
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| 233 | // trigger slide animation
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| 234 | triggerSlide : function(e) {
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| 235 | var $this = $(this),
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| 236 | tab = {
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| 237 | elem : $this,
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| 238 | index : header.index($this),
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| 239 | next : $this.next(),
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| 240 | prev : $this.parent().prev().children('h2'),
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| 241 | parent : $this.parent()
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| 242 | };
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| 243 |
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| 244 | // current hash not correct?
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| 245 | if (settings.linkable && tab.parent.attr('data-slide-name')) {
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| 246 | if (tab.parent.attr('data-slide-name') !== window.location.hash.split('#')[1]) {
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| 247 | // exit early and try again (prevents double trigger (issue #60))
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| 248 | return window.location.hash = '#' + tab.parent.attr('data-slide-name');
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| 249 | }
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| 250 | }
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| 251 |
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| 252 | // update core.currentSlide
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| 253 | core.currentSlide = tab.index;
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| 254 |
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| 255 | // reset onSlideAnimComplete callback flag
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| 256 | core.slideAnimCompleteFlag = false;
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| 257 |
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| 258 | // trigger callback in context of sibling div (jQuery wrapped)
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| 259 | settings.onTriggerSlide.call(tab.next, $this);
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| 260 |
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| 261 | // animate
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| 262 | if ($this.hasClass('selected') && $this.position().left < slideWidth / 2) {
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| 263 | // animate single selected tab
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| 264 | core.animSlide.call(tab);
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| 265 | } else {
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| 266 | // animate groups
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| 267 | core.animSlideGroup(tab);
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| 268 | }
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| 269 |
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| 270 | // stop autoplay, reset current slide index in core.nextSlide closure
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| 271 | if (settings.autoPlay) {
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| 272 | methods.stop();
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| 273 | methods.play(header.index(header.filter('.selected')));
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| 274 | }
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| 275 | },
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| 276 |
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| 277 | animSlide : function(triggerTab) {
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| 278 | var _this = this;
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| 279 |
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| 280 | // set pos for single selected tab
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| 281 | if (typeof this.pos === 'undefined') this.pos = slideWidth;
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| 282 |
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| 283 | // remove, then add selected class
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| 284 | header.removeClass('selected').filter(this.elem).addClass('selected');
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| 285 |
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| 286 | // if slide index not zero
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| 287 | if (!!this.index) {
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| 288 | this.elem
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| 289 | .add(this.next)
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| 290 | .stop(true)
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| 291 | .animate({
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| 292 | left : this.pos + this.index * settings.headerWidth
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| 293 | },
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| 294 | settings.slideSpeed,
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| 295 | settings.easing,
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| 296 | function() {
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| 297 | // flag ensures that fn is only called one time per triggerSlide
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| 298 | if (!core.slideAnimCompleteFlag) {
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| 299 | // trigger onSlideAnimComplete callback in context of sibling div (jQuery wrapped)
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| 300 | settings.onSlideAnimComplete.call(triggerTab ? triggerTab.next : _this.prev.next());
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| 301 | core.slideAnimCompleteFlag = true;
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| 302 | }
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| 303 | });
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| 304 |
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| 305 | // remove, then add selected class
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| 306 | header.removeClass('selected').filter(this.prev).addClass('selected');
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| 307 |
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| 308 | }
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| 309 | },
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| 310 |
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| 311 | // animates left and right groups of slides
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| 312 | animSlideGroup : function(triggerTab) {
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| 313 | var group = ['left', 'right'];
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| 314 |
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| 315 | $.each(group, function(index, side) {
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| 316 | var filterExpr, left;
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| 317 |
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| 318 | if (side === 'left') {
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| 319 | filterExpr = ':lt(' + (triggerTab.index + 1) + ')';
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| 320 | left = 0;
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| 321 | } else {
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| 322 | filterExpr = ':gt(' + triggerTab.index + ')';
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| 323 | left = slideWidth;
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| 324 | }
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| 325 |
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| 326 | slides
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| 327 | .filter(filterExpr)
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| 328 | .children('h2')
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| 329 | .each(function() {
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| 330 | var $this = $(this),
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| 331 | tab = {
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| 332 | elem : $this,
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| 333 | index : header.index($this),
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| 334 | next : $this.next(),
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| 335 | prev : $this.parent().prev().children('h2'),
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| 336 | pos : left
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| 337 | };
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| 338 |
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| 339 | // trigger item anim, pass original trigger context for callback fn
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| 340 | core.animSlide.call(tab, triggerTab);
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| 341 | });
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| 342 |
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| 343 | });
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| 344 |
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| 345 | // remove, then add selected class
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| 346 | header.removeClass('selected').filter(triggerTab.elem).addClass('selected');
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| 347 | },
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| 348 |
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| 349 | ieClass : function(version) {
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| 350 | if (version < 7) methods.destroy();
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| 351 | if (version >= 10) return;
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| 352 | if (version === 7 || version === 8) {
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| 353 | slides.each(function(index) {
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| 354 | $(this).addClass('slide-' + index);
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| 355 | });
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| 356 | }
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| 357 |
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| 358 | elem.addClass('ie ie' + version);
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| 359 | },
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| 360 |
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| 361 | init : function() {
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| 362 | var ua = navigator.userAgent,
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| 363 | index = ua.indexOf('MSIE');
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| 364 |
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| 365 | // test for ie
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| 366 | if (index !== -1) {
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| 367 | ua = ua.slice(index + 5, index + 7);
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| 368 | core.ieClass(+ua);
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| 369 | }
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| 370 |
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| 371 | // init styles and events
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| 372 | core.setStyles();
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| 373 | core.bindEvents();
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| 374 |
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| 375 | // check slide speed is not faster than cycle speed
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| 376 | if (settings.cycleSpeed < settings.slideSpeed) settings.cycleSpeed = settings.slideSpeed;
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| 377 |
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| 378 | // init autoplay
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| 379 | settings.autoPlay && methods.play();
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| 380 | }
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| 381 | };
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| 382 |
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| 383 | // init plugin
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| 384 | core.init();
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| 385 |
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| 386 | // expose methods
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| 387 | return methods;
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| 388 |
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| 389 | };
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| 390 |
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| 391 | $.fn.liteAccordion = function(method) {
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| 392 | var elem = this,
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| 393 | instance = elem.data('liteAccordion');
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| 394 |
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| 395 | // if creating a new instance
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| 396 | if (typeof method === 'object' || !method) {
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| 397 | return elem.each(function() {
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| 398 | var liteAccordion;
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| 399 |
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| 400 | // if plugin already instantiated, return
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| 401 | if (instance) return;
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| 402 |
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| 403 | // otherwise create a new instance
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| 404 | liteAccordion = new LiteAccordion(elem, method);
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| 405 | elem.data('liteAccordion', liteAccordion);
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| 406 | });
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| 407 |
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| 408 | // otherwise, call method on current instance
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| 409 | } else if (typeof method === 'string' && instance[method]) {
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| 410 | // debug method isn't chainable b/c we need the debug object to be returned
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| 411 | if (method === 'debug') {
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| 412 | return instance[method].call(elem);
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| 413 | } else { // the rest of the methods are chainable though
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| 414 | instance[method].call(elem);
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| 415 | return elem;
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| 416 | }
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| 417 | }
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| 418 | };
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| 419 |
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| 420 | })(jQuery); |
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