梦を描くピクチャーの轮播-改
11603 ワード
<div class="infiniteCarousels" style="float:left;margin-top:5px;">
<div style="width:280px;height:180px;overflow:hidden;">
<ul id='imgscrolls' >
{dede:arclist row=4 orderby=pubdate type='image.' typeid='25' }
<li style="float:left;display:inline;">
<div style="position: relative; width: 400px; height:145px;color:white;">
<img src="[field:litpic/]" style="width:280px;height:180px">
<span style="position:absolute; bottom:-35px; left:0; line-height:1.5; width:280px; background-color:rgba(0,0,0,0.5);">[field:title/]</span>
</div>
{/dede:arclist}
</li>
</ul>
</div>
</div>(function () {
$.fn.infiniteCarousels = function () {
function repeat(str, n) {
return new Array( n + 1 ).join(str);
}
return this.each(function () {
// magic!
var $wrapper = $('> div', this).css('overflow', 'hidden'),
$slider = $wrapper.find('> ul').width(9999),
$items = $slider.find('> li'),
$single = $items.filter(':first')
singleWidth = $single.outerWidth(),
visible = Math.ceil($wrapper.innerWidth() / singleWidth),
currentPage = 1,
pages = Math.ceil($items.length / visible);
/* TASKS */
// 1. pad the pages with empty element if required
if ($items.length % visible != 0) {
// pad
$slider.append(repeat('<li class="empty" />', visible - ($items.length % visible)));
$items = $slider.find('> li');
}
// 2. create the carousel padding on left and right (cloned)
$items.filter(':first').before($items.slice(-visible).clone().addClass('cloned'));
$items.filter(':last').after($items.slice(0, visible).clone().addClass('cloned'));
$items = $slider.find('> li');
// 3. reset scroll
$wrapper.scrollLeft(singleWidth * visible);
// 4. paging function
function gotoPage(page) {
var dir = page < currentPage ? -1 : 1,
n = Math.abs(currentPage - page),
left = singleWidth * dir * visible * n;
$wrapper.filter(':not(:animated)').animate({
scrollLeft : '+=' + left
}, 500, function () {
// if page == last page - then reset position
if (page > pages) {
$wrapper.scrollLeft(singleWidth * visible);
page = 1;
} else if (page == 0) {
page = pages;
$wrapper.scrollLeft(singleWidth * visible * pages);
}
currentPage = page;
});
}
// 5. insert the back and forward link
//$wrapper.after('<a href="#" class="arrow back">1</a><a href="#" class="arrow forward">2</a>');
// 6. bind the back and forward links
$('a.back', this).click(function () {
gotoPage(currentPage - 1);
return false;
});
$('a.forward', this).click(function () {
gotoPage(currentPage + 1);
return false;
});
$(this).bind('goto', function (event, page) {
gotoPage(page);
});
// THIS IS NEW CODE FOR THE AUTOMATIC INFINITE CAROUSEL
$(this).bind('next', function () {
gotoPage(currentPage + 1);
});
});
};
})(jQuery);
$(document).ready(function () {
// THIS IS NEW CODE FOR THE AUTOMATIC INFINITE CAROUSEL
var autoscrolling = true;
if($('#imgscrolls > li').length>0)
{
$('.infiniteCarousels').infiniteCarousels().mouseover(function () {
autoscrolling = false;
}).mouseout(function () {
autoscrolling = true;
});
setInterval(function () {
if (autoscrolling) {
$('.infiniteCarousels').trigger('next');
}
}, 5000);
}
});