这是我的 slideshow.js
; (function ($) {
"use strict";
var ver = 'Lite-1.6';
$.fn.cycle = function (options) {
return this.each(function () {
options = options || {};
if (this.cycleTimeout) clearTimeout(this.cycleTimeout);
this.cycleTimeout = 0;
this.cyclePause = 0;
var $cont = $(this);
var $slides = options.slideExpr ? $(options.slideExpr, this) : $cont.children();
var els = $slides.get();
if (els.length < 2) {
if (window.console)
console.log('terminating; too few slides: ' + els.length);
return; // don't bother
}
// support metadata plugin (v1.0 and v2.0)
var opts = $.extend({}, $.fn.cycle.defaults, options || {}, $.metadata ? $cont.metadata() : $.meta ? $cont.data() : {});
var meta = $.isFunction($cont.data) ? $cont.data(opts.metaAttr) : null;
if (meta)
opts = $.extend(opts, meta);
opts.before = opts.before ? [opts.before] : [];
opts.after = opts.after ? [opts.after] : [];
opts.after.unshift(function () { opts.busy = 0; });
// allow shorthand overrides of width, height and timeout
var cls = this.className;
opts.width = parseInt((cls.match(/w:(\d+)/) || [])[1], 10) || opts.width;
opts.height = parseInt((cls.match(/h:(\d+)/) || [])[1], 10) || opts.height;
opts.timeout = parseInt((cls.match(/t:(\d+)/) || [])[1], 10) || opts.timeout;
if ($cont.css('position') == 'static')
$cont.css('position', 'relative');
if (opts.width)
$cont.width(opts.width);
if (opts.height && opts.height != 'auto')
$cont.height(opts.height);
var first = 0;
$slides.css({ position: 'absolute', top: 0 }).each(function (i) {
$(this).css('z-index', els.length - i);
});
$(els[first]).css('opacity', 1).show(); // opacity bit needed to handle reinit case
if ($.browser.msie) els[first].style.removeAttribute('filter');
if (opts.fit && opts.width)
$slides.width(opts.width);
if (opts.fit && opts.height && opts.height != 'auto')
$slides.height(opts.height);
if (opts.pause)
$cont.hover(function () { this.cyclePause = 1; }, function () { this.cyclePause = 0; });
var txFn = $.fn.cycle.transitions[opts.fx];
if (txFn)
txFn($cont, $slides, opts);
$slides.each(function () {
var $el = $(this);
this.cycleH = (opts.fit && opts.height) ? opts.height : $el.height();
this.cycleW = (opts.fit && opts.width) ? opts.width : $el.width();
});
if (opts.cssFirst)
$($slides[first]).css(opts.cssFirst);
if (opts.timeout) {
// ensure that timeout and speed settings are sane
if (opts.speed.constructor == String)
opts.speed = { slow: 600, fast: 200}[opts.speed] || 400;
if (!opts.sync)
opts.speed = opts.speed / 2;
while ((opts.timeout - opts.speed) < 250)
opts.timeout += opts.speed;
}
opts.speedIn = opts.speed;
opts.speedOut = opts.speed;
opts.slideCount = els.length;
opts.currSlide = first;
opts.nextSlide = 1;
// fire artificial events
var e0 = $slides[first];
if (opts.before.length)
opts.before[0].apply(e0, [e0, e0, opts, true]);
if (opts.after.length > 1)
opts.after[1].apply(e0, [e0, e0, opts, true]);
if (opts.click && !opts.next)
opts.next = opts.click;
if (opts.next)
$(opts.next).unbind('click.cycle').bind('click.cycle', function () { return advance(els, opts, opts.rev ? -1 : 1); });
if (opts.prev)
$(opts.prev).unbind('click.cycle').bind('click.cycle', function () { return advance(els, opts, opts.rev ? 1 : -1); });
if (opts.timeout)
this.cycleTimeout = setTimeout(function () {
go(els, opts, 0, !opts.rev);
}, opts.timeout + (opts.delay || 0));
});
};
function go(els, opts, manual, fwd) {
if (opts.busy)
return;
var p = els[0].parentNode, curr = els[opts.currSlide], next = els[opts.nextSlide];
if (p.cycleTimeout === 0 && !manual)
return;
if (manual || !p.cyclePause) {
if (opts.before.length)
$.each(opts.before, function (i, o) { o.apply(next, [curr, next, opts, fwd]); });
var after = function () {
if ($.browser.msie)
this.style.removeAttribute('filter');
$.each(opts.after, function (i, o) { o.apply(next, [curr, next, opts, fwd]); });
queueNext(opts);
};
if (opts.nextSlide != opts.currSlide) {
opts.busy = 1;
$.fn.cycle.custom(curr, next, opts, after);
}
var roll = (opts.nextSlide + 1) == els.length;
opts.nextSlide = roll ? 0 : opts.nextSlide + 1;
opts.currSlide = roll ? els.length - 1 : opts.nextSlide - 1;
} else {
queueNext(opts);
}
function queueNext(opts) {
if (opts.timeout)
p.cycleTimeout = setTimeout(function () { go(els, opts, 0, !opts.rev); }, opts.timeout);
}
}
// advance slide forward or back
function advance(els, opts, val) {
var p = els[0].parentNode, timeout = p.cycleTimeout;
if (timeout) {
clearTimeout(timeout);
p.cycleTimeout = 0;
}
opts.nextSlide = opts.currSlide + val;
if (opts.nextSlide < 0) {
opts.nextSlide = els.length - 1;
}
else if (opts.nextSlide >= els.length) {
opts.nextSlide = 0;
}
go(els, opts, 1, val >= 0);
return false;
}
$.fn.cycle.custom = function (curr, next, opts, cb) {
var $l = $(curr), $n = $(next);
$n.css(opts.cssBefore);
var fn = function () { $n.animate(opts.animIn, opts.speedIn, opts.easeIn, cb); };
$l.animate(opts.animOut, opts.speedOut, opts.easeOut, function () {
$l.css(opts.cssAfter);
if (!opts.sync)
fn();
});
if (opts.sync)
fn();
};
$.fn.cycle.transitions = {
fade: function ($cont, $slides, opts) {
$slides.not(':eq(0)').hide();
opts.cssBefore = { opacity: 0, display: 'block' };
opts.cssAfter = { display: 'none' };
opts.animOut = { opacity: 0 };
opts.animIn = { opacity: 1 };
},
fadeout: function ($cont, $slides, opts) {
opts.before.push(function (curr, next, opts, fwd) {
$(curr).css('zIndex', opts.slideCount + (fwd === true ? 1 : 0));
$(next).css('zIndex', opts.slideCount + (fwd === true ? 0 : 1));
});
$slides.not(':eq(0)').hide();
opts.cssBefore = { opacity: 1, display: 'block', zIndex: 1 };
opts.cssAfter = { display: 'none', zIndex: 0 };
opts.animOut = { opacity: 0 };
opts.animIn = { opacity: 1 };
}
};
$.fn.cycle.ver = function () { return ver; };
// @see: http://malsup.com/jquery/cycle/lite/
$.fn.cycle.defaults = {
animIn: {},
animOut: {},
fx: 'fade',
after: null,
before: null,
cssBefore: {},
cssAfter: {},
delay: 0,
fit: 0,
height: 'auto',
metaAttr: 'cycle',
next: null,
pause: false,
prev: null,
speed: 1000,
slideExpr: null,
sync: true,
timeout: 4000
};
})(jQuery);
我的html代码：
<li class="slideshow">
<img src="/Content/Images/Image1" width="470" height="470" alt="ProductName1" />
<img src="/Content/Images/Image2" width="470" height="470" alt="ProductName2" />
<img src="/Content/Images/Image3" width="470" height="470" alt="ProductName3" />
</li>
我在 html 中的 javascript 初始化代码
<script id="scriptInit" type="text/javascript">
$(document).ready(function () {
$('.slideshow').cycle({
fx: 'fade', // choose your transition type, ex: fade, scrollUp, shuffle, etc...
after: onAfter
});
});
</script>
上面的代码工作正常..
我需要对其进行更改，以便只有类幻灯片放映中的那些元素（在本例中为“img”）才应该启用幻灯片放映，并且具有“启用幻灯片放映”的类。
因此，我的 html 代码将变为：
<li class="slideshow">
<span> My non slideshow text goes here</span>
<img src="/Content/Images/Image1" width="470" height="470" alt="ProductName1" class="slideshow-enabled"/>
<img src="/Content/Images/Image2" width="470" height="470" alt="ProductName2" class="slideshow-enabled"/>
<img src="/Content/Images/Image3" width="470" height="470" alt="ProductName3" class="slideshow-enabled"/>
</li>
希望我能够解释我需要什么，如果有任何疑问，请询问。
谢谢
阿纳布