源码见这里：https://github.com/CaptainLiao/zujian/tree/master/matrix
HTML结构：
<div> <img src="https://www.jb51.net/d1981a8ba21975314fd2edf9c09447bb.jpg"> <img src="https://www.jb51.net/8e7075a2c6b7fb1e083914db000a70c5.jpg"> <img src="https://www.jb51.net/d1981a8ba21975314fd2edf9c09447bb.jpg"> </div>
JS:
function Matrix($el, options) { this.$el = $el; this.clientW = $(window).width(); this.imgLen = 0; this.cur_x = 0; this.start_x = 0; // 差值 this.m = 0; this.params = $.extend({},{plus: 1.1, reduce: .9}, options); this.plus = this.params.plus; this.reduce = this.params.reduce; // 缩放初始值 this.s = 1; this.flag = false; } Matrix.prototype.chooseImg = function () { var _this = this, $wrap = this.$el; $wrap.on('click','img' ,function () { var mask = $('<div></div>'), fui_pop = $('<div></div>'), fui_slider = $('<ul></ul>'), index, $imgs = $wrap.find('img'), url = '', li = '', clientWidth = _this.clientW; index = $(this).index(); $('body').append(mask).append(fui_pop); $('.fui-pop').append(fui_slider); if($imgs) { $imgs.each(function () { url = $(this).attr('src'); li += ' <li><img src='https://www.jb51.net/article/+url+' alt=""></li>'; _this.imgLen++; }); $('.fui-slider').append(li) .width(_this.imgLen * 100 +'%') .css('left', -index * clientWidth +'px'); }else { alert('请选择图片@@'); return } _this.touchSlide(); _this.closeImg(); _this.scale(); }) }; Matrix.prototype.closeImg = function () { var _this = this; $('.fui-slider-item').on('click', function (e) { $('.fui-pop, .fui-mask').remove(); _this.imgLen = 0; }) }; Matrix.prototype.touchSlide = function () { var _this = this, $slider = $('.fui-slider'), clientW = this.clientW, imgLen = this.imgLen; $slider.on('touchstart', '.fui-slider-item', function (e) { var index = $(this).index(), m = _this.m, left = parseInt($slider.css('left')); _this.start_x = e.originalEvent.touches[0].clientX; if(_this.flag) return; _this.flag = true; $(this).on('touchmove', function (e) { _this.cur_x = e.originalEvent.touches[0].clientX; m = _this.cur_x - _this.start_x; if(Math.abs(m) > 50) { console.log(m); console.log(m); $slider .css('left', left+m+'px') .find('.fui-slider-item').css({ 'transform': 'scale(1)', 'transform-origin': '0% 0%' }); } }); $(this).on('touchend', function (e) { _this.flag = false; // 每次touchend的时候，将缩放值初始化 _this.s = 1; if(Math.abs(m) < clientW / 3){ $slider.css('left', left+'px'); return; } index = index % imgLen; if(index ==0){ if(m > 0) { $slider.css('left', left+'px'); }else { $slider.css('left', left-clientW+'px'); } }else if(index < imgLen-1){ if(m > 0) { $slider.css('left', left+clientW+'px'); }else { $slider.css('left', left-clientW+'px'); } }else{ if(m < 0) { $slider.css('left', left+'px'); }else { $slider.css('left', left+clientW+'px'); } } }); }) }; Matrix.prototype.scale = function() { var _this = this; $('.fui-slider').on('mousewheel','.fui-slider-item', function(e) { var oEvent = e.originalEvent, p_x = 0, p_y = 0, delta = oEvent.wheelDelta || -oEvent.delta; if(delta > 0) { _this.s *= _this.plus; }else { _this.s *= _this.reduce; } p_x = (oEvent.clientX / $(window).width()) * 100; p_y = (oEvent.clientY / $(window).height()) *100 ; $(this).css({ 'transform': 'scale('+_this.s+')', 'transform-origin':p_x+'% '+p_y+'%', '-webkit-transform-origin': p_x+'% '+p_y+'%' }); }) }; $.fn.zoom = function (options, cb) { var zoom = new Matrix(this, options, cb); return zoom.chooseImg(); };
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