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JavaScript

/*
* jQuery Cycle Plugin for light-weight slideshows
* Examples and documentation at: http://malsup.com/jquery/cycle/
* Copyright (c) 2007-2008 M. Alsup
* Version: 2.22 (06/08/2008)
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
* Requires: jQuery v1.1.3.1 or later
*
* Based on the work of:
* 1) Matt Oakes (http://portfolio.gizone.co.uk/applications/slideshow/)
* 2) Torsten Baldes (http://medienfreunde.com/lab/innerfade/)
* 3) Benjamin Sterling (http://www.benjaminsterling.com/experiments/jqShuffle/)
*/
(function($) {
var ver = '2.22';
var ie6 = $.browser.msie && /MSIE 6.0/.test(navigator.userAgent);
function log() {
if (window.console && window.console.log)
window.console.log('[cycle] ' + Array.prototype.join.call(arguments,''));
};
$.fn.cycle = function(options) {
return this.each(function() {
options = options || {};
if (options.constructor == String) {
switch(options) {
case 'stop':
if (this.cycleTimeout) clearTimeout(this.cycleTimeout);
this.cycleTimeout = 0;
return;
case 'pause':
this.cyclePause = 1;
return;
case 'resume':
this.cyclePause = 0;
return;
default:
options = { fx: options };
};
}
// stop existing slideshow for this container (if there is one)
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) {
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 ? $cont.data() : {});
if (opts.autostop)
opts.countdown = opts.autostopCount || els.length;
opts.before = opts.before ? [opts.before] : [];
opts.after = opts.after ? [opts.after] : [];
opts.after.unshift(function(){ opts.busy=0; });
if (opts.continuous)
opts.after.push(function() { go(els,opts,0,!opts.rev); });
// clearType corrections
if (ie6 && opts.cleartype && !opts.cleartypeNoBg)
clearTypeFix($slides);
// allow shorthand overrides of width, height and timeout
var cls = this.className;
opts.width = parseInt((cls.match(/w:(\d+)/)||[])[1]) || opts.width;
opts.height = parseInt((cls.match(/h:(\d+)/)||[])[1]) || opts.height;
opts.timeout = parseInt((cls.match(/t:(\d+)/)||[])[1]) || 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);
if (opts.random) {
opts.randomMap = [];
for (var i = 0; i < els.length; i++)
opts.randomMap.push(i);
opts.randomMap.sort(function(a,b) {return Math.random() - 0.5;});
opts.randomIndex = 0;
opts.startingSlide = opts.randomMap[0];
}
else if (opts.startingSlide >= els.length)
opts.startingSlide = 0; // catch bogus input
var first = opts.startingSlide || 0;
$slides.css({position: 'absolute', top:0, left:0}).hide().each(function(i) {
var z = first ? i >= first ? els.length - (i-first) : first-i : els.length-i;
$(this).css('z-index', z)
});
$(els[first]).css('opacity',1).show(); // opacity bit needed to handle reinit case
if ($.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;});
// run transition init fn
var init = $.fn.cycle.transitions[opts.fx];
if ($.isFunction(init))
init($cont, $slides, opts);
else if (opts.fx != 'custom')
log('unknown transition: ' + opts.fx);
$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();
});
opts.cssBefore = opts.cssBefore || {};
opts.animIn = opts.animIn || {};
opts.animOut = opts.animOut || {};
$slides.not(':eq('+first+')').css(opts.cssBefore);
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;
}
if (opts.easing)
opts.easeIn = opts.easeOut = opts.easing;
if (!opts.speedIn)
opts.speedIn = opts.speed;
if (!opts.speedOut)
opts.speedOut = opts.speed;
opts.slideCount = els.length;
opts.currSlide = first;
if (opts.random) {
opts.nextSlide = opts.currSlide;
if (++opts.randomIndex == els.length)
opts.randomIndex = 0;
opts.nextSlide = opts.randomMap[opts.randomIndex];
}
else
opts.nextSlide = opts.startingSlide >= (els.length-1) ? 0 : opts.startingSlide+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).bind('click', function(){return advance(els,opts,opts.rev?-1:1)});
if (opts.prev)
$(opts.prev).bind('click', function(){return advance(els,opts,opts.rev?1:-1)});
if (opts.pager)
buildPager(els,opts);
// expose fn for adding slides after the show has started
opts.addSlide = function(newSlide) {
var $s = $(newSlide), s = $s[0];
if (!opts.autostopCount)
opts.countdown++;
els.push(s);
if (opts.els)
opts.els.push(s); // shuffle needs this
opts.slideCount = els.length;
$s.css('position','absolute').appendTo($cont);
if (ie6 && opts.cleartype && !opts.cleartypeNoBg)
clearTypeFix($s);
if (opts.fit && opts.width)
$s.width(opts.width);
if (opts.fit && opts.height && opts.height != 'auto')
$slides.height(opts.height);
s.cycleH = (opts.fit && opts.height) ? opts.height : $s.height();
s.cycleW = (opts.fit && opts.width) ? opts.width : $s.width();
$s.css(opts.cssBefore);
if (typeof opts.onAddSlide == 'function')
opts.onAddSlide($s);
};
if (opts.timeout || opts.continuous)
this.cycleTimeout = setTimeout(
function(){go(els,opts,0,!opts.rev)},
opts.continuous ? 10 : 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 &&
((opts.autostop && (--opts.countdown <= 0)) ||
(opts.nowrap && !opts.random && opts.nextSlide < opts.currSlide))) {
if (opts.end)
opts.end(opts);
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 && opts.cleartype)
this.style.removeAttribute('filter');
$.each(opts.after, function(i,o) { o.apply(next, [curr, next, opts, fwd]); });
};
if (opts.nextSlide != opts.currSlide) {
opts.busy = 1;
if (opts.fxFn)
opts.fxFn(curr, next, opts, after, fwd);
else if ($.isFunction($.fn.cycle[opts.fx]))
$.fn.cycle[opts.fx](curr, next, opts, after);
else
$.fn.cycle.custom(curr, next, opts, after);
}
if (opts.random) {
opts.currSlide = opts.nextSlide;
if (++opts.randomIndex == els.length)
opts.randomIndex = 0;
opts.nextSlide = opts.randomMap[opts.randomIndex];
}
else { // sequence
var roll = (opts.nextSlide + 1) == els.length;
opts.nextSlide = roll ? 0 : opts.nextSlide+1;
opts.currSlide = roll ? els.length-1 : opts.nextSlide-1;
}
if (opts.pager)
$.fn.cycle.updateActivePagerLink(opts.pager, opts.currSlide);
}
if (opts.timeout && !opts.continuous)
p.cycleTimeout = setTimeout(function() { go(els,opts,0,!opts.rev) }, opts.timeout);
else if (opts.continuous && p.cyclePause)
p.cycleTimeout = setTimeout(function() { go(els,opts,0,!opts.rev) }, 10);
};
$.fn.cycle.updateActivePagerLink = function(pager, currSlide) {
$(pager).find('a').removeClass('activeSlide').filter('a:eq('+currSlide+')').addClass('activeSlide');
};
// 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) {
if (opts.nowrap) return false;
opts.nextSlide = els.length - 1;
}
else if (opts.nextSlide >= els.length) {
if (opts.nowrap) return false;
opts.nextSlide = 0;
}
if (opts.prevNextClick && typeof opts.prevNextClick == 'function')
opts.prevNextClick(val > 0, opts.nextSlide, els[opts.nextSlide]);
go(els, opts, 1, val>=0);
return false;
};
function buildPager(els, opts) {
var $p = $(opts.pager);
$.each(els, function(i,o) {
var $a = (typeof opts.pagerAnchorBuilder == 'function')
? $(opts.pagerAnchorBuilder(i,o))
: $('<a href="#">'+(i+1998)+'</a>');
// don't reparent if anchor is in the dom
if ($a.parents('body').length == 0)
$a.appendTo($p);
$a.bind(opts.pagerEvent, function() {
opts.nextSlide = i;
var p = els[0].parentNode, timeout = p.cycleTimeout;
if (timeout) {
clearTimeout(timeout);
p.cycleTimeout = 0;
}
if (typeof opts.pagerClick == 'function')
opts.pagerClick(opts.nextSlide, els[opts.nextSlide]);
go(els,opts,1,!opts.rev);
return false;
});
});
//$p.find('a').filter('a:eq('+opts.startingSlide+')').addClass('activeSlide');
$.fn.cycle.updateActivePagerLink(opts.pager, opts.startingSlide);
};
// this fixes clearType problems in ie6 by setting an explicit bg color
function clearTypeFix($slides) {
function hex(s) {
var s = parseInt(s).toString(16);
return s.length < 2 ? '0'+s : s;
};
function getBg(e) {
for ( ; e && e.nodeName.toLowerCase() != 'html'; e = e.parentNode) {
var v = $.css(e,'background-color');
if (v.indexOf('rgb') >= 0 ) {
var rgb = v.match(/\d+/g);
return '#'+ hex(rgb[0]) + hex(rgb[1]) + hex(rgb[2]);
}
if (v && v != 'transparent')
return v;
}
return '#ffffff';
};
$slides.each(function() { $(this).css('background-color', getBg(this)); });
};
$.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() {
if (opts.cssAfter) $l.css(opts.cssAfter);
if (!opts.sync) fn();
});
if (opts.sync) fn();
};
$.fn.cycle.transitions = {
fade: function($cont, $slides, opts) {
$slides.not(':eq('+opts.startingSlide+')').css('opacity',0);
opts.before.push(function() { $(this).show() });
opts.animIn = { opacity: 1 };
opts.animOut = { opacity: 0 };
opts.cssBefore = { opacity: 0 };
opts.cssAfter = { display: 'none' };
}
};
$.fn.cycle.ver = function() { return ver; };
// override these globally if you like (they are all optional)
$.fn.cycle.defaults = {
fx: 'scollLeft', // one of: fade, shuffle, zoom, scrollLeft, etc
timeout: 4000, // milliseconds between slide transitions (0 to disable auto advance)
continuous: 0, // true to start next transition immediately after current one completes
speed: 800, // speed of the transition (any valid fx speed value)
speedIn: null, // speed of the 'in' transition
speedOut: null, // speed of the 'out' transition
next: null, // id of element to use as click trigger for next slide
prev: null, // id of element to use as click trigger for previous slide
prevNextClick: null, // callback fn for prev/next clicks: function(isNext, zeroBasedSlideIndex, slideElement)
pager: null, // id of element to use as pager container
pagerClick: null, // callback fn for pager clicks: function(zeroBasedSlideIndex, slideElement)
pagerEvent: 'click', // event which drives the pager navigation
pagerAnchorBuilder: null, // callback fn for building anchor links
before: null, // transition callback (scope set to element to be shown)
after: null, // transition callback (scope set to element that was shown)
end: null, // callback invoked when the slideshow terminates (use with autostop or nowrap options)
easing: null, // easing method for both in and out transitions
easeIn: null, // easing for "in" transition
easeOut: null, // easing for "out" transition
shuffle: null, // coords for shuffle animation, ex: { top:15, left: 200 }
animIn: null, // properties that define how the slide animates in
animOut: null, // properties that define how the slide animates out
cssBefore: null, // properties that define the initial state of the slide before transitioning in
cssAfter: null, // properties that defined the state of the slide after transitioning out
fxFn: null, // function used to control the transition
height: 'auto', // container height
startingSlide: 0, // zero-based index of the first slide to be displayed
sync: 1, // true if in/out transitions should occur simultaneously
random: 0, // true for random, false for sequence (not applicable to shuffle fx)
fit: 0, // force slides to fit container
pause: 1, // true to enable "pause on hover"
autostop: 0, // true to end slideshow after X transitions (where X == slide count)
autostopCount: 0, // number of transitions (optionally used with autostop to define X)
delay: 0, // additional delay (in ms) for first transition (hint: can be negative)
slideExpr: null, // expression for selecting slides (if something other than all children is required)
cleartype: 0, // true if clearType corrections should be applied (for IE)
nowrap: 0 // true to prevent slideshow from wrapping
};
})(jQuery);
/*
* jQuery Cycle Plugin Transition Definitions
* This script is a plugin for the jQuery Cycle Plugin
* Examples and documentation at: http://malsup.com/jquery/cycle/
* Copyright (c) 2007-2008 M. Alsup
* Version: 2.22
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*/
(function($) {
//
// These functions define one-time slide initialization for the named
// transitions. To save file size feel free to remove any of these that you
// don't need.
//
// scrollLeft/Right
$.fn.cycle.transitions.scrollLeft = function($cont, $slides, opts) {
$cont.css('overflow','hidden');
opts.before.push(function(curr, next, opts) {
$(this).show();
opts.cssBefore.left = next.offsetWidth;
opts.animOut.left = 0-curr.offsetWidth;
});
opts.cssFirst = { left: 0 };
opts.animIn = { left: 0 };
};
$.fn.cycle.transitions.scrollRight = function($cont, $slides, opts) {
$cont.css('overflow','hidden');
opts.before.push(function(curr, next, opts) {
$(this).show();
opts.cssBefore.left = 0-next.offsetWidth;
opts.animOut.left = curr.offsetWidth;
});
opts.cssFirst = { left: 0 };
opts.animIn = { left: 0 };
};
$.fn.cycle.transitions.scrollHorz = function($cont, $slides, opts) {
$cont.css('overflow','hidden').width();
// $slides.show();
opts.before.push(function(curr, next, opts, fwd) {
$(this).show();
var currW = curr.offsetWidth, nextW = next.offsetWidth;
opts.cssBefore = fwd ? { left: nextW } : { left: -nextW };
opts.animIn.left = 0;
opts.animOut.left = fwd ? -currW : currW;
$slides.not(curr).css(opts.cssBefore);
});
opts.cssFirst = { left: 0 };
opts.cssAfter = { display: 'none' }
};
})(jQuery);