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/bin/html/javascripts/jquery.cycle.lite.js

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JavaScript | 232 lines | 186 code | 30 blank | 16 comment | 57 complexity | 867e99d3b99e34e1163fced0c75586c2 MD5 | raw file
  1/*!
  2 * jQuery Cycle Lite Plugin
  3 * http://malsup.com/jquery/cycle/lite/
  4 * Copyright (c) 2008-2012 M. Alsup
  5 * Version: 1.6 (02-MAY-2012)
  6 * Dual licensed under the MIT and GPL licenses:
  7 * http://www.opensource.org/licenses/mit-license.php
  8 * http://www.gnu.org/licenses/gpl.html
  9 * Requires: jQuery v1.3.2 or later
 10 */
 11;(function($) {
 12"use strict";
 13
 14var ver = 'Lite-1.6';
 15
 16$.fn.cycle = function(options) {
 17    return this.each(function() {
 18        options = options || {};
 19        
 20        if (this.cycleTimeout) clearTimeout(this.cycleTimeout);
 21
 22        this.cycleTimeout = 0;
 23        this.cyclePause = 0;
 24        
 25        var $cont = $(this);
 26        var $slides = options.slideExpr ? $(options.slideExpr, this) : $cont.children();
 27        var els = $slides.get();
 28        if (els.length < 2) {
 29            if (window.console)
 30                console.log('terminating; too few slides: ' + els.length);
 31            return; // don't bother
 32        }
 33
 34        // support metadata plugin (v1.0 and v2.0)
 35        var opts = $.extend({}, $.fn.cycle.defaults, options || {}, $.metadata ? $cont.metadata() : $.meta ? $cont.data() : {});
 36        var meta = $.isFunction($cont.data) ? $cont.data(opts.metaAttr) : null;
 37        if (meta)
 38            opts = $.extend(opts, meta);
 39            
 40        opts.before = opts.before ? [opts.before] : [];
 41        opts.after = opts.after ? [opts.after] : [];
 42        opts.after.unshift(function(){ opts.busy=0; });
 43            
 44        // allow shorthand overrides of width, height and timeout
 45        var cls = this.className;
 46        opts.width = parseInt((cls.match(/w:(\d+)/)||[])[1], 10) || opts.width;
 47        opts.height = parseInt((cls.match(/h:(\d+)/)||[])[1], 10) || opts.height;
 48        opts.timeout = parseInt((cls.match(/t:(\d+)/)||[])[1], 10) || opts.timeout;
 49
 50        if ($cont.css('position') == 'static') 
 51            $cont.css('position', 'relative');
 52        if (opts.width) 
 53            $cont.width(opts.width);
 54        if (opts.height && opts.height != 'auto') 
 55            $cont.height(opts.height);
 56
 57        var first = 0;
 58        $slides.css({position: 'absolute', top:0}).each(function(i) {
 59            $(this).css('z-index', els.length-i);
 60        });
 61        
 62        $(els[first]).css('opacity',1).show(); // opacity bit needed to handle reinit case
 63        if ($.browser.msie) els[first].style.removeAttribute('filter');
 64
 65        if (opts.fit && opts.width) 
 66            $slides.width(opts.width);
 67        if (opts.fit && opts.height && opts.height != 'auto') 
 68            $slides.height(opts.height);
 69        if (opts.pause) 
 70            $cont.hover(function(){this.cyclePause=1;}, function(){this.cyclePause=0;});
 71
 72        var txFn = $.fn.cycle.transitions[opts.fx];
 73        if (txFn)
 74            txFn($cont, $slides, opts);
 75        
 76        $slides.each(function() {
 77            var $el = $(this);
 78            this.cycleH = (opts.fit && opts.height) ? opts.height : $el.height();
 79            this.cycleW = (opts.fit && opts.width) ? opts.width : $el.width();
 80        });
 81
 82        if (opts.cssFirst)
 83            $($slides[first]).css(opts.cssFirst);
 84
 85        if (opts.timeout) {
 86            // ensure that timeout and speed settings are sane
 87            if (opts.speed.constructor == String)
 88                opts.speed = {slow: 600, fast: 200}[opts.speed] || 400;
 89            if (!opts.sync)
 90                opts.speed = opts.speed / 2;
 91            while((opts.timeout - opts.speed) < 250)
 92                opts.timeout += opts.speed;
 93        }
 94        opts.speedIn = opts.speed;
 95        opts.speedOut = opts.speed;
 96
 97        opts.slideCount = els.length;
 98        opts.currSlide = first;
 99        opts.nextSlide = 1;
100
101        // fire artificial events
102        var e0 = $slides[first];
103        if (opts.before.length)
104            opts.before[0].apply(e0, [e0, e0, opts, true]);
105        if (opts.after.length > 1)
106            opts.after[1].apply(e0, [e0, e0, opts, true]);
107        
108        if (opts.click && !opts.next)
109            opts.next = opts.click;
110        if (opts.next)
111            $(opts.next).unbind('click.cycle').bind('click.cycle', function(){return advance(els,opts,opts.rev?-1:1);});
112        if (opts.prev)
113            $(opts.prev).unbind('click.cycle').bind('click.cycle', function(){return advance(els,opts,opts.rev?1:-1);});
114
115        if (opts.timeout)
116            this.cycleTimeout = setTimeout(function() {
117                go(els,opts,0,!opts.rev);
118            }, opts.timeout + (opts.delay||0));
119    });
120};
121
122function go(els, opts, manual, fwd) {
123    if (opts.busy) 
124        return;
125    var p = els[0].parentNode, curr = els[opts.currSlide], next = els[opts.nextSlide];
126    if (p.cycleTimeout === 0 && !manual) 
127        return;
128
129    if (manual || !p.cyclePause) {
130        if (opts.before.length)
131            $.each(opts.before, function(i,o) { o.apply(next, [curr, next, opts, fwd]); });
132        var after = function() {
133            if ($.browser.msie)
134                this.style.removeAttribute('filter');
135            $.each(opts.after, function(i,o) { o.apply(next, [curr, next, opts, fwd]); });
136            queueNext(opts);
137        };
138
139        if (opts.nextSlide != opts.currSlide) {
140            opts.busy = 1;
141            $.fn.cycle.custom(curr, next, opts, after);
142        }
143        var roll = (opts.nextSlide + 1) == els.length;
144        opts.nextSlide = roll ? 0 : opts.nextSlide+1;
145        opts.currSlide = roll ? els.length-1 : opts.nextSlide-1;
146    } else {
147      queueNext(opts);
148    }
149
150    function queueNext(opts) {
151        if (opts.timeout)
152            p.cycleTimeout = setTimeout(function() { go(els,opts,0,!opts.rev); }, opts.timeout);
153    }
154}
155
156// advance slide forward or back
157function advance(els, opts, val) {
158    var p = els[0].parentNode, timeout = p.cycleTimeout;
159    if (timeout) {
160        clearTimeout(timeout);
161        p.cycleTimeout = 0;
162    }
163    opts.nextSlide = opts.currSlide + val;
164    if (opts.nextSlide < 0) {
165        opts.nextSlide = els.length - 1;
166    }
167    else if (opts.nextSlide >= els.length) {
168        opts.nextSlide = 0;
169    }
170    go(els, opts, 1, val>=0);
171    return false;
172}
173
174$.fn.cycle.custom = function(curr, next, opts, cb) {
175    var $l = $(curr), $n = $(next);
176    $n.css(opts.cssBefore);
177    var fn = function() {$n.animate(opts.animIn, opts.speedIn, opts.easeIn, cb);};
178    $l.animate(opts.animOut, opts.speedOut, opts.easeOut, function() {
179        $l.css(opts.cssAfter);
180        if (!opts.sync)
181            fn();
182    });
183    if (opts.sync)
184        fn();
185};
186
187$.fn.cycle.transitions = {
188    fade: function($cont, $slides, opts) {
189        $slides.not(':eq(0)').hide();
190        opts.cssBefore = { opacity: 0, display: 'block' };
191        opts.cssAfter  = { display: 'none' };
192        opts.animOut = { opacity: 0 };
193        opts.animIn = { opacity: 1 };
194    },
195    fadeout: function($cont, $slides, opts) {
196        opts.before.push(function(curr,next,opts,fwd) {
197            $(curr).css('zIndex',opts.slideCount + (fwd === true ? 1 : 0));
198            $(next).css('zIndex',opts.slideCount + (fwd === true ? 0 : 1));
199        });
200        $slides.not(':eq(0)').hide();
201        opts.cssBefore = { opacity: 1, display: 'block', zIndex: 1 };
202        opts.cssAfter  = { display: 'none', zIndex: 0 };
203        opts.animOut = { opacity: 0 };
204        opts.animIn = { opacity: 1 };
205    }
206};
207
208$.fn.cycle.ver = function() { return ver; };
209
210// @see: http://malsup.com/jquery/cycle/lite/
211$.fn.cycle.defaults = {
212    animIn:        {},
213    animOut:       {},
214    fx:           'fade',
215    after:         null,
216    before:        null,
217    cssBefore:     {},
218    cssAfter:      {},
219    delay:         0,
220    fit:           0,
221    height:       'auto',
222    metaAttr:     'cycle',
223    next:          null,
224    pause:         false,
225    prev:          null,
226    speed:         1000,
227    slideExpr:     null,
228    sync:          true,
229    timeout:       4000
230};
231
232})(jQuery);