jQuery+CSS3 3D旋转木马

浏览：640次- 评论：0次- 发布时间：2017-09-12

Html

Css

body {
	padding:0;
	margin:0;
	background:#253242;
}
body,html {
	height:100%
}
div,li,ul {
	padding:0;
	margin:0
}
img {
	vertical-align:top;
	border:0
}
li,ul {
	list-style:none;
	text-transform:capitalize
}
#banner {
	margin-bottom:-10px
}
#carousel {
	position:relative;
	z-index:2;
	height:250px;
	margin-top:20px;
	transform-style:preserve-3d;
	perspective:800px
}
#carousel img {
	position:absolute;
	left:50%;
	top:50%;
	width:504px;
	height:266px;
	margin-left:-252px;
	margin-top:-133px;
	transition:transform .5s ease-in-out;
	box-shadow:8px 8px 20px rgba(0,0,0,.2);
	cursor:pointer
}
#bannerNav {
	position:relative;
	margin-top:20px;
	height:10px;
	padding:10px 0;
	text-align:center
}
#bannerNav ul li {
	cursor:pointer;
	overflow:hidden;
	display:inline-block;
	width:14px;
	margin:0 2px
}
#bannerNav ul li a {
	margin:0 auto;
	display:block;
	width:6px;
	height:6px;
	vertical-align:top;
	border-radius:3px;
	background:#5e6671;
	font-size:0
}
#bannerNav ul li.on a,#bannerNav ul li:hover a {
	background:#b4b7ba
}
#bannerNav ul li.on a {
	width:12px
}
@media only screen and (min-width:1920px) {
	#banner {
	margin-bottom:-15px
}
#carousel {
	height:360px
}
#carousel img {
	width:720px;
	height:380px;
	margin-left:-360px;
	margin-top:-190px
}
}

;(function($, window, document, undefined) {
    var Carousel = function(elem, options) {
        this.defaults = {
            curDisplay: 0,
            autoPlay: false,
            interval: 3000
        };
        this.opts = $.extend({}, this.defaults, options);

var self = this;
        this.$carousel = elem;
        this.$aImg = this.$carousel.find('img');

this.imgLen = this.$aImg.length;
        this.curDisplay = this.opts.curDisplay;
        this.autoPlay = this.opts.autoPlay;
        this.viewWidth = $(window).width() / 2;
        this.b_switch = true;
        this.iNow = this.opts.curDisplay;
        this.timer = null;
        this.interval = this.opts.interval;
        // 生成小点点
        var htmlNav = "<ul>";
        for (var i = 0; i < this.imgLen; i++) {
            if (this.curDisplay == i) {
                htmlNav += "<li class=on><a>" + i + "</a></li>";
            } else {
                htmlNav += "<li><a>" + i + "</a></li>";
            }
        }
        htmlNav += "</ul>";
        this.$carousel.parent().append('<div id=bannerNav>' + htmlNav + '</div>');
        this.$aNav = this.$carousel.siblings('#bannerNav').find('ul li');
    };

var outerWidth = parseInt(document.body.offsetWidth);
    var middleWidth = 1920;
    var _height = outerWidth >= middleWidth ? 380 : 266;
    var _slideHeight = outerWidth >= middleWidth ? 330 : 220;

Carousel.prototype = {
        play: function() {
            if (this.autoPlay) {
                if (this.iNow === this.imgLen - 1) {
                    this.iNow = 0;
                } else {
                    this.iNow++;
                }

this.movingNext(this.iNow);
            }
        },

movingPrev: function(index) {
            this.curDisplay = index;

this.initalCarousel();
        },

movingNext: function(index) {
            this.curDisplay = index;

this.initalCarousel();
        },

initalCarousel: function() {
            var self = this;
            var half_imgLen = Math.floor(this.imgLen / 2);
            var leftNum, rightNum;

var k = 0;
            for (var i = 0; i < half_imgLen; i++) {
                leftNum = this.curDisplay - i - 1;
                if (k == 0) {
                    this.$aImg.eq(leftNum).css({
                        transform: 'translateX(' + (-200 * (i + 1)) + 'px) translateZ(-120px) rotateY(30deg)'
                    }).animate({
                        height: _slideHeight + 'px',
                        marginTop: -_slideHeight / 2 + 'px',
                        opacity: '0.6'
                    }, 500);
                    this.$aImg.eq(leftNum).attr('onclick', null);

rightNum = this.curDisplay + i + 1;
                    if (rightNum > this.imgLen - 1) rightNum -= this.imgLen;
                    this.$aImg.eq(rightNum).css({
                        transform: 'translateX(' + (200 * (i + 1)) + 'px) translateZ(-120px) rotateY(-30deg)'
                    }).animate({
                        height: _slideHeight + 'px',
                        marginTop: -_slideHeight / 2 + 'px',
                        opacity: '0.6'
                    }, 500);
                    this.$aImg.eq(rightNum).attr('onclick', null);
                    k++;
                } else {
                    this.$aImg.eq(leftNum).css({
                        transform: 'translateX(0px) translateZ(-1000px) rotateY(30deg)'
                    });

rightNum = this.curDisplay + i + 1;
                    if (rightNum > this.imgLen - 1) rightNum -= this.imgLen;
                    this.$aImg.eq(rightNum).css({
                        transform: 'translateX(0px) translateZ(-1000px) rotateY(-30deg)'
                    });
                }
                this.$aImg.removeClass('on');
                this.$aNav.removeClass('on');
            }

var _href = 'location.href=' + "'" + this.$aImg.eq(this.curDisplay).attr('data-url') + "'";
            this.$aImg.eq(this.curDisplay).css({
                transform: 'translateZ(0px)'
            }).animate({
                height: _height + 'px',
                marginTop: -_height / 2 + 'px',
                opacity: '1',
            }, 500).addClass('on').attr('onclick', _href);
            this.$aNav.eq(this.curDisplay).addClass('on');

this.$carousel.on('webkitTransitionEnd', function() {
                self.b_switch = true;
            });
        },

inital: function() {
            var self = this;

this.initalCarousel();

this.$aImg.on('click', function(ev) {
                if (self.b_switch && !$(this).hasClass('on')) {
                    self.iNow = $(this).index();
                    self.b_switch = false;

var direction = self.viewWidth < ev.clientX ? 'next' : 'prev';
                    var index = $(this).index();

if (direction === 'next') {
                        self.movingNext(index);
                    } else {
                        self.movingPrev(index);
                    }
                }
            }).hover(function() {
                clearInterval(self.timer);
            }, function() {
                self.timer = setInterval(function() {
                    self.play();
                }, self.interval);
            });
            this.$aNav.on('click', function(ev) {
                if (self.b_switch && !$(this).hasClass('on')) {
                    self.iNow = $(this).index();
                    self.b_switch = false;

var direction = self.viewWidth < ev.clientX ? 'next' : 'prev';
                    var index = $(this).index();

this.timer = setInterval(function() {
                self.play();
            }, this.interval);

this.$carousel.on('selectstart', function() {
                return false;
            });
        },

constructor: Carousel
    };

$.fn.carousel = function(options) {
        var carousel = new Carousel(this, options);

return carousel.inital();
    };

})(jQuery, window, document, undefined);

↑上面代码改变，会自动显示代码结果

jQuery调用版本：1.11.3

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代码描述：利用CSS3的transitiontransfm属性和jQuery，开发出一套一屏只显示3张轮播的3D旋转木马轮播，并显示页码（开发者可根据自己的需求在JS中将一屏3张图片修改为显示所有图片）

本幻灯片提供了两种尺寸，在分辨率大于或等于1920的时候，整个轮播会整体放大，小于1920尺寸的时候，就显示正常的轮播大小，开发者可自由组合

另：本demo目前只支持webkit内核浏览器，如果支持其他浏览器，请在CSS中将transform类的CSS3CSS3属性加上前缀

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