225 lines
7.6 KiB
JavaScript
225 lines
7.6 KiB
JavaScript
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/*!
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* jQuery Cycle Lite Plugin
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* http://malsup.com/jquery/cycle/lite/
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* Copyright (c) 2008-2012 M. Alsup
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* Version: 1.5 (05-MAR-2012)
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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* Requires: jQuery v1.3.2 or later
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*/
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;(function($) {
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var ver = 'Lite-1.5';
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$.fn.cycle = function(options) {
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return this.each(function() {
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options = options || {};
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if (this.cycleTimeout) clearTimeout(this.cycleTimeout);
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this.cycleTimeout = 0;
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this.cyclePause = 0;
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var $cont = $(this);
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var $slides = options.slideExpr ? $(options.slideExpr, this) : $cont.children();
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var els = $slides.get();
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if (els.length < 2) {
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window.console && console.log('terminating; too few slides: ' + els.length);
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return; // don't bother
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}
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// support metadata plugin (v1.0 and v2.0)
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var opts = $.extend({}, $.fn.cycle.defaults, options || {}, $.metadata ? $cont.metadata() : $.meta ? $cont.data() : {});
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var meta = $.isFunction($cont.data) ? $cont.data(opts.metaAttr) : null;
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if (meta)
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opts = $.extend(opts, meta);
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opts.before = opts.before ? [opts.before] : [];
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opts.after = opts.after ? [opts.after] : [];
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opts.after.unshift(function(){ opts.busy=0; });
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// allow shorthand overrides of width, height and timeout
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var cls = this.className;
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opts.width = parseInt((cls.match(/w:(\d+)/)||[])[1]) || opts.width;
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opts.height = parseInt((cls.match(/h:(\d+)/)||[])[1]) || opts.height;
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opts.timeout = parseInt((cls.match(/t:(\d+)/)||[])[1]) || opts.timeout;
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if ($cont.css('position') == 'static')
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$cont.css('position', 'relative');
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if (opts.width)
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$cont.width(opts.width);
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if (opts.height && opts.height != 'auto')
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$cont.height(opts.height);
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var first = 0;
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$slides.css({position: 'absolute', top:0}).each(function(i) {
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$(this).css('z-index', els.length-i)
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});
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$(els[first]).css('opacity',1).show(); // opacity bit needed to handle reinit case
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if ($.browser.msie) els[first].style.removeAttribute('filter');
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if (opts.fit && opts.width)
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$slides.width(opts.width);
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if (opts.fit && opts.height && opts.height != 'auto')
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$slides.height(opts.height);
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if (opts.pause)
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$cont.hover(function(){this.cyclePause=1;}, function(){this.cyclePause=0;});
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var txFn = $.fn.cycle.transitions[opts.fx];
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txFn && txFn($cont, $slides, opts);
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$slides.each(function() {
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var $el = $(this);
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this.cycleH = (opts.fit && opts.height) ? opts.height : $el.height();
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this.cycleW = (opts.fit && opts.width) ? opts.width : $el.width();
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});
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if (opts.cssFirst)
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$($slides[first]).css(opts.cssFirst);
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if (opts.timeout) {
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// ensure that timeout and speed settings are sane
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if (opts.speed.constructor == String)
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opts.speed = {slow: 600, fast: 200}[opts.speed] || 400;
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if (!opts.sync)
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opts.speed = opts.speed / 2;
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while((opts.timeout - opts.speed) < 250)
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opts.timeout += opts.speed;
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}
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opts.speedIn = opts.speed;
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opts.speedOut = opts.speed;
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opts.slideCount = els.length;
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opts.currSlide = first;
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opts.nextSlide = 1;
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// fire artificial events
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var e0 = $slides[first];
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if (opts.before.length)
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opts.before[0].apply(e0, [e0, e0, opts, true]);
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if (opts.after.length > 1)
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opts.after[1].apply(e0, [e0, e0, opts, true]);
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if (opts.click && !opts.next)
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opts.next = opts.click;
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if (opts.next)
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$(opts.next).unbind('click.cycle').bind('click.cycle', function(){return advance(els,opts,opts.rev?-1:1)});
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if (opts.prev)
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$(opts.prev).unbind('click.cycle').bind('click.cycle', function(){return advance(els,opts,opts.rev?1:-1)});
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if (opts.timeout)
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this.cycleTimeout = setTimeout(function() {
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go(els,opts,0,!opts.rev)
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}, opts.timeout + (opts.delay||0));
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});
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};
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function go(els, opts, manual, fwd) {
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if (opts.busy) return;
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var p = els[0].parentNode, curr = els[opts.currSlide], next = els[opts.nextSlide];
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if (p.cycleTimeout === 0 && !manual)
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return;
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if (manual || !p.cyclePause) {
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if (opts.before.length)
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$.each(opts.before, function(i,o) { o.apply(next, [curr, next, opts, fwd]); });
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var after = function() {
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if ($.browser.msie)
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this.style.removeAttribute('filter');
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$.each(opts.after, function(i,o) { o.apply(next, [curr, next, opts, fwd]); });
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queueNext();
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};
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if (opts.nextSlide != opts.currSlide) {
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opts.busy = 1;
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$.fn.cycle.custom(curr, next, opts, after);
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}
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var roll = (opts.nextSlide + 1) == els.length;
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opts.nextSlide = roll ? 0 : opts.nextSlide+1;
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opts.currSlide = roll ? els.length-1 : opts.nextSlide-1;
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} else {
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queueNext();
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}
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function queueNext() {
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if (opts.timeout)
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p.cycleTimeout = setTimeout(function() { go(els,opts,0,!opts.rev) }, opts.timeout);
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}
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};
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// advance slide forward or back
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function advance(els, opts, val) {
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var p = els[0].parentNode, timeout = p.cycleTimeout;
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if (timeout) {
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clearTimeout(timeout);
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p.cycleTimeout = 0;
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}
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opts.nextSlide = opts.currSlide + val;
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if (opts.nextSlide < 0) {
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opts.nextSlide = els.length - 1;
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}
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else if (opts.nextSlide >= els.length) {
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opts.nextSlide = 0;
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}
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go(els, opts, 1, val>=0);
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return false;
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};
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$.fn.cycle.custom = function(curr, next, opts, cb) {
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var $l = $(curr), $n = $(next);
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$n.css(opts.cssBefore);
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var fn = function() {$n.animate(opts.animIn, opts.speedIn, opts.easeIn, cb)};
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$l.animate(opts.animOut, opts.speedOut, opts.easeOut, function() {
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$l.css(opts.cssAfter);
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if (!opts.sync) fn();
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});
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if (opts.sync) fn();
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};
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$.fn.cycle.transitions = {
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fade: function($cont, $slides, opts) {
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$slides.not(':eq(0)').hide();
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opts.cssBefore = { opacity: 0, display: 'block' };
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opts.cssAfter = { display: 'none' };
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opts.animOut = { opacity: 0 };
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opts.animIn = { opacity: 1 };
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},
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fadeout: function($cont, $slides, opts) {
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opts.before.push(function(curr,next,opts,fwd) {
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$(curr).css('zIndex',opts.slideCount + (fwd === true ? 1 : 0));
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$(next).css('zIndex',opts.slideCount + (fwd === true ? 0 : 1));
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});
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$slides.not(':eq(0)').hide();
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opts.cssBefore = { opacity: 1, display: 'block', zIndex: 1 };
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opts.cssAfter = { display: 'none', zIndex: 0 };
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opts.animOut = { opacity: 0 };
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}
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};
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$.fn.cycle.ver = function() { return ver; };
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// @see: http://malsup.com/jquery/cycle/lite/
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$.fn.cycle.defaults = {
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animIn: {},
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animOut: {},
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fx: 'fade',
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after: null,
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before: null,
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cssBefore: {},
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cssAfter: {},
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delay: 0,
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fit: 0,
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height: 'auto',
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metaAttr: 'cycle',
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next: null,
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pause: 0,
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prev: null,
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speed: 1000,
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slideExpr: null,
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sync: 1,
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timeout: 4000
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};
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})(jQuery);
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