javascript jQuery 循环内容轮播自动滚动
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时间：2020-10-26 12:41:34 来源:igfitidea点击:
jQuery Circular Content Carousel Autoscroll
提问by niczcool
I found a cool carousel script named Circular Content Carousel by Tympanus. It's almost exactly what I need. When clicking on the "more" link, the respective item moves to the left and a content area will slide out.
我找到了一个很酷的轮播脚本，名为Circular Content Carousel by Tympanus。这几乎正是我需要的。当点击“更多”链接时，相应的项目向左移动，内容区域将滑出。
What I need to achieve now is to make it autoscrolland stopped while mouseoveron the carousel and when the content area opened.
我现在需要实现的是让它自动滚动并在鼠标悬停在轮播上和内容区域打开时停止。
I'm a newbie in javascript & jquery, so I desperately need an expert help. Can somebody help me customize this carousel?
我是 javascript 和 jquery 的新手，所以我非常需要专家的帮助。有人可以帮我定制这个旋转木马吗？
Here's a link of the working Circular Content Carousel. http://jsfiddle.net/niczcool/x7jxa/2/
这是工作循环内容轮播的链接。http://jsfiddle.net/niczcool/x7jxa/2/
Thanks in advanced.
先谢谢了。
回答by AlexC
here is an update:
这是一个更新：
Not the best way, but is going to work
不是最好的方法，但会起作用
Update:
更新：
Yes, i agree with function, but Fiddle for some reason return an weird error.
是的，我同意函数，但 Fiddle 由于某种原因返回一个奇怪的错误。
回答by sajid khan
<script type="text/javascript">
$('#ca-container').contentcarousel();
var int = setInterval("$('.ca-nav-next').trigger('click');",1000);
$('.ca-item').hover(function(){
clearInterval(int);
},function(){
int = setInterval("$('.ca-nav-next').trigger('click');",1000);
});
$('.ca-nav').hover(function(){
clearInterval(int);
},function(){
int = setInterval("$('.ca-nav-next').trigger('click');",1000);
});
</script>
回答by user2157200
I have had the same problem. I have just finished modifying the script a bit to allow for it. It is relatively stable and you can change the variables in the script. Its not pretty, but it works, modifications to clean it up welcome. jquery.contentcarousel.js
我曾经也有过一样的问题。我刚刚完成了对脚本的稍微修改以允许它。它相对稳定，您可以更改脚本中的变量。它不漂亮，但它有效，欢迎修改以清理它。jquery.contentcarousel.js
(function($) {
var aux = {
// navigates left / right
navigate : function( dir, $el, $wrapper, opts, cache ) {
var scroll = opts.scroll,
factor = 1,
idxClicked = 0;
if( cache.expanded ) {
scroll = 1; // scroll is always 1 in full mode
factor = 3; // the width of the expanded item will be 3 times bigger than 1 collapsed item
idxClicked = cache.idxClicked; // the index of the clicked item
}
// clone the elements on the right / left and append / prepend them according to dir and scroll
if( dir === 1 ) {
$wrapper.find('div.ca-item:lt(' + scroll + ')').each(function(i) {
$(this).clone(true).css( 'left', ( cache.totalItems - idxClicked + i ) * cache.itemW * factor + 'px' ).appendTo( $wrapper );
});
}
else {
var $first = $wrapper.children().eq(0);
$wrapper.find('div.ca-item:gt(' + ( cache.totalItems - 1 - scroll ) + ')').each(function(i) {
// insert before $first so they stay in the right order
$(this).clone(true).css( 'left', - ( scroll - i + idxClicked ) * cache.itemW * factor + 'px' ).insertBefore( $first );
});
}
// animate the left of each item
// the calculations are dependent on dir and on the cache.expanded value
$wrapper.find('div.ca-item').each(function(i) {
var $item = $(this);
$item.stop().animate({
left : ( dir === 1 ) ? '-=' + ( cache.itemW * factor * scroll ) + 'px' : '+=' + ( cache.itemW * factor * scroll ) + 'px'
}, opts.sliderSpeed, opts.sliderEasing, function() {
if( ( dir === 1 && $item.position().left < - idxClicked * cache.itemW * factor ) || ( dir === -1 && $item.position().left > ( ( cache.totalItems - 1 - idxClicked ) * cache.itemW * factor ) ) ) {
// remove the item that was cloned
$item.remove();
}
cache.isAnimating = false;
});
});
},
// opens an item (animation) -> opens all the others
openItem : function( $wrapper, $item, opts, cache ) {
cache.idxClicked = $item.index();
// the item's position (1, 2, or 3) on the viewport (the visible items)
cache.winpos = aux.getWinPos( $item.position().left, cache );
$wrapper.find('div.ca-item').not( $item ).hide();
$item.find('div.ca-content-wrapper').css( 'left', cache.itemW + 'px' ).stop().animate({
width : cache.itemW * 2 + 'px',
left : cache.itemW + 'px'
}, opts.itemSpeed, opts.itemEasing)
.end()
.stop()
.animate({
left : '0px'
}, opts.itemSpeed, opts.itemEasing, function() {
cache.isAnimating = false;
cache.expanded = true;
aux.openItems( $wrapper, $item, opts, cache );
});
},
// opens all the items
openItems : function( $wrapper, $openedItem, opts, cache ) {
var openedIdx = $openedItem.index();
$wrapper.find('div.ca-item').each(function(i) {
var $item = $(this),
idx = $item.index();
if( idx !== openedIdx ) {
$item.css( 'left', - ( openedIdx - idx ) * ( cache.itemW * 3 ) + 'px' ).show().find('div.ca-content-wrapper').css({
left : cache.itemW + 'px',
width : cache.itemW * 2 + 'px'
});
// hide more link
aux.toggleMore( $item, false );
}
});
},
// show / hide the item's more button
toggleMore : function( $item, show ) {
( show ) ? $item.find('a.ca-more').show() : $item.find('a.ca-more').hide();
},
// close all the items
// the current one is animated
closeItems : function( $wrapper, $openedItem, opts, cache ) {
var openedIdx = $openedItem.index();
$openedItem.find('div.ca-content-wrapper').stop().animate({
width : '0px'
}, opts.itemSpeed, opts.itemEasing)
.end()
.stop()
.animate({
left : cache.itemW * ( cache.winpos - 1 ) + 'px'
}, opts.itemSpeed, opts.itemEasing, function() {
cache.isAnimating = false;
cache.expanded = false;
});
// show more link
aux.toggleMore( $openedItem, true );
$wrapper.find('div.ca-item').each(function(i) {
var $item = $(this),
idx = $item.index();
if( idx !== openedIdx ) {
$item.find('div.ca-content-wrapper').css({
width : '0px'
})
.end()
.css( 'left', ( ( cache.winpos - 1 ) - ( openedIdx - idx ) ) * cache.itemW + 'px' )
.show();
// show more link
aux.toggleMore( $item, true );
}
});
},
// gets the item's position (1, 2, or 3) on the viewport (the visible items)
// val is the left of the item
getWinPos : function( val, cache ) {
switch( val ) {
case 0 : return 1; break;
case cache.itemW : return 2; break;
case cache.itemW * 2 : return 3; break;
}
}
},
methods = {
init : function( options ) {
if( this.length ) {
var settings = {
sliderSpeed : 500, // speed for the sliding animation
sliderEasing : 'easeOutExpo',// easing for the sliding animation
itemSpeed : 500, // speed for the item animation (open / close)
itemEasing : 'easeOutExpo',// easing for the item animation (open / close)
scroll : 1 // number of items to scroll at a time
};
return this.each(function() {
// if options exist, lets merge them with our default settings
if ( options ) {
$.extend( settings, options );
}
var $el = $(this),
$wrapper = $el.find('div.ca-wrapper'),
$maincontainer = $el.find('div.container'),//used for the hover function
$isopen = 0, //used to detect if the boxes are opened to stop scrolling
$autoscroll = 1, //set to 0 if you dont want autoscroll
$asspeed = 6000, //usual js times, currently set to 6 seconds
$items = $wrapper.children('div.ca-item'),
cache = {};
// save the with of one item
cache.itemW = $items.width();
// save the number of total items
cache.totalItems = $items.length;
// add navigation buttons
if( cache.totalItems > 3 )
$el.prepend('<div class="ca-nav"><span class="ca-nav-prev">Previous</span><span class="ca-nav-next">Next</span></div>')
// control the scroll value
if( settings.scroll < 1 )
settings.scroll = 1;
else if( settings.scroll > 3 )
settings.scroll = 3;
var $navPrev = $el.find('span.ca-nav-prev'),
$navNext = $el.find('span.ca-nav-next');
// hide the items except the first 3
$wrapper.css( 'overflow', 'hidden' );
// the items will have position absolute
// calculate the left of each item
$items.each(function(i) {
$(this).css({
position : 'absolute',
left : i * cache.itemW + 'px'
});
});
// click to open the item(s)
$el.find('a.ca-more').live('click.contentcarousel', function( event ) {
if( cache.isAnimating ) return false;
cache.isAnimating = true;
$isopen = 1;
$(this).hide();
var $item = $(this).closest('div.ca-item');
aux.openItem( $wrapper, $item, settings, cache );
clearTimeout(tid);
return false;
});
// click to close the item(s)
$el.find('a.ca-close').live('click.contentcarousel', function( event ) {
if( cache.isAnimating ) return false;
cache.isAnimating = true;
var $item = $(this).closest('div.ca-item');
aux.closeItems( $wrapper, $item, settings, cache );
$isopen = 0;
return false;
});
// autoscroll
if ($autoscroll == 1){
var tid = setTimeout(ascroll, $asspeed);
$wrapper.bind('mouseover.contentcarousel', function( event ) {
clearTimeout(tid);
});
$wrapper.bind('mouseout.contentcarousel', function( event ) {
if ($isopen == 0){
tid = setTimeout(ascroll, $asspeed);
};
});
};
function ascroll() {
if( cache.isAnimating ) return false;
cache.isAnimating = true;
aux.navigate( 1, $el, $wrapper, settings, cache );
tid = setTimeout(ascroll, $asspeed); // repeat myself
};
// navigate left
$navPrev.bind('click.contentcarousel', function( event ) {
if( cache.isAnimating ) return false;
cache.isAnimating = true;
aux.navigate( -1, $el, $wrapper, settings, cache );
});
// navigate right
$navNext.bind('click.contentcarousel', function( event ) {
if( cache.isAnimating ) return false;
cache.isAnimating = true;
aux.navigate( 1, $el, $wrapper, settings, cache );
});
// adds events to the mouse
$el.bind('mousewheel.contentcarousel', function(e, delta) {
if(delta > 0) {
if( cache.isAnimating ) return false;
cache.isAnimating = true;
aux.navigate( -1, $el, $wrapper, settings, cache );
}
else {
if( cache.isAnimating ) return false;
cache.isAnimating = true;
aux.navigate( 1, $el, $wrapper, settings, cache );
}
return false;
});
});
}
}
};
$.fn.contentcarousel = function(method) {
if ( methods[method] ) {
return methods[method].apply( this, Array.prototype.slice.call( arguments, 1 ));
} else if ( typeof method === 'object' || ! method ) {
return methods.init.apply( this, arguments );
} else {
$.error( 'Method ' + method + ' does not exist on jQuery.contentcarousel' );
}
};
})(jQuery);
})(jQuery);
