2

我发现了一个很酷的轮播脚本,名为Circular Content Carousel by Tympanus。这几乎正​​是我所需要的。单击“更多”链接时,相应项目向左移动,内容区域将滑出。

我现在需要实现的是让它在鼠标悬停在轮播上和内容区域打开时自动滚动并停止。

我是 javascript 和 jquery 的新手,所以我迫切需要专家的帮助。有人可以帮我定制这个轮播吗?

这是工作循环内容轮播的链接。http://jsfiddle.net/niczcool/x7jxa/2/

先谢谢了。

4

3 回答 3

10

这是一个更新:

不是最好的方法,但会起作用

http://jsfiddle.net/x7jxa/3/

更新:

http://jsfiddle.net/x7jxa/4/

是的,我同意函数,但 Fiddle 出于某种原因返回了一个奇怪的错误。

于 2012-07-03T00:00:16.457 回答
2
<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>
于 2012-11-02T07:26:58.540 回答
1

我曾经也有过一样的问题。我刚刚完成了对脚本的一些修改以允许它。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);

于 2013-03-11T14:32:06.873 回答