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首页 前端知识 js功能之使用viewer图片查看器实现图片浏览效果（亲测简单好用）

js功能之使用viewer图片查看器实现图片浏览效果（亲测简单好用）

2024-04-23 21:04:32 前端知识 前端哥 973 820 我要收藏

目录

一、实现效果

二、直接上全部代码

三、附上当前版本的viewer.min.css的代码

四、当前版本的viewer.min.js的代码

五、viewer.js介绍

六、浏览器兼容

七、更多配置

一、实现效果

二、直接上全部代码

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <link rel="stylesheet" href="./viewer.min.css" />
    <script type="text/javascript" src="./viewer.min.js"></script>
  </head>
  <body>
    <div id="content">
      <img src="./img1.jpg" alt="" />
      <img src="./img2.jpg" alt="" />
      <img src="./img3.jpg" alt="" />
      <img src="./img4.jpg" alt="" />
      <img src="./img5.jpg" alt="" />
      <img src="./img6.jpg" alt="" />
      <img src="./img7.jpg" alt="" />
    </div>

    <script type="text/javascript">
      window.addEventListener("DOMContentLoaded", function () {
        var container = document.getElementById("content");
        var viewr = new Viewer(container, {
          url: "data-original",
          fullscreen: false, // 不需要全屏
          title: false, //不需要文件标题
        });
      });
    </script>
  </body>
</html>

三、附上当前版本的viewer.min.css的代码

/*!
 * Viewer.js v0.3.1
 * https://github.com/fengyuanchen/viewerjs
 *
 * Copyright (c) 2015-2016 Fengyuan Chen
 * Released under the MIT license
 *
 * Date: 2016-02-02T11:35:36.273Z
 */.viewer-container,.viewer-navbar{background-color:#000;overflow:hidden}.viewer-canvas,.viewer-container,.viewer-footer,.viewer-player{right:0;bottom:0;left:0}.viewer-button,.viewer-canvas,.viewer-container,.viewer-footer,.viewer-list,.viewer-navbar,.viewer-open,.viewer-title,.viewer-toolbar,.viewer-toolbar>li{overflow:hidden}.viewer-close:before,.viewer-flip-horizontal:before,.viewer-flip-vertical:before,.viewer-fullscreen-exit:before,.viewer-fullscreen:before,.viewer-next:before,.viewer-one-to-one:before,.viewer-play:before,.viewer-prev:before,.viewer-reset:before,.viewer-rotate-left:before,.viewer-rotate-right:before,.viewer-zoom-in:before,.viewer-zoom-out:before{font-size:0;line-height:0;display:block;width:20px;height:20px;color:transparent;background-image:url(data:image/png;base64,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);background-repeat:no-repeat}.viewer-zoom-in:before{content:'Zoom In';background-position:0 0}.viewer-zoom-out:before{content:'Zoom Out';background-position:-20px 0}.viewer-one-to-one:before{content:'One to One';background-position:-40px 0}.viewer-reset:before{content:'Reset';background-position:-60px 0}.viewer-prev:before{content:'Previous';background-position:-80px 0}.viewer-play:before{content:'Play';background-position:-100px 0}.viewer-next:before{content:'Next';background-position:-120px 0}.viewer-rotate-left:before{content:'Rotate Left';background-position:-140px 0}.viewer-rotate-right:before{content:'Rotate Right';background-position:-160px 0}.viewer-flip-horizontal:before{content:'Flip Horizontal';background-position:-180px 0}.viewer-flip-vertical:before{content:'Flip Vertical';background-position:-200px 0}.viewer-fullscreen:before{content:'Enter Full Screen';background-position:-220px 0}.viewer-fullscreen-exit:before{content:'Exit Full Screen';background-position:-240px 0}.viewer-close:before{content:'Close';background-position:-260px 0}.viewer-container{font-size:0;line-height:0;position:absolute;top:0;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;background-color:rgba(0,0,0,.5);direction:ltr!important;-ms-touch-action:none;touch-action:none;-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none}.viewer-container ::-moz-selection,.viewer-container::-moz-selection{background-color:transparent}.viewer-container ::selection,.viewer-container::selection{background-color:transparent}.viewer-container img{display:block;width:100%;min-width:0!important;max-width:none!important;height:auto;min-height:0!important;max-height:none!important}.viewer-player,.viewer-tooltip{display:none;position:absolute}.viewer-canvas{position:absolute;top:0}.viewer-canvas>img{width:auto;max-width:90%!important;height:auto;margin:15px auto}.viewer-footer{position:absolute;text-align:center}.viewer-navbar{background-color:rgba(0,0,0,.5)}.viewer-list{-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box;height:50px;margin:0;padding:1px 0}.viewer-list>li{font-size:0;line-height:0;float:left;overflow:hidden;width:30px;height:50px;cursor:pointer;opacity:.5;color:transparent;filter:alpha(opacity=50)}.viewer-list>li+li{margin-left:1px}.viewer-list>.viewer-active{opacity:1;filter:alpha(opacity=100)}.viewer-player{top:0;cursor:none;background-color:#000}.viewer-player>img{position:absolute;top:0;left:0}.viewer-toolbar{width:280px;margin:0 auto 5px;padding:3px 0}.viewer-toolbar>li{float:left;width:24px;height:24px;cursor:pointer;border-radius:50%;background-color:#000;background-color:rgba(0,0,0,.5)}.viewer-toolbar>li:hover{background-color:#000;background-color:rgba(0,0,0,.8)}.viewer-toolbar>li:before{margin:2px}.viewer-toolbar>li+li{margin-left:1px}.viewer-toolbar>.viewer-play{width:30px;height:30px;margin-top:-3px;margin-bottom:-3px}.viewer-toolbar>.viewer-play:before{margin:5px}.viewer-tooltip{font-size:12px;line-height:20px;top:50%;left:50%;width:50px;height:20px;margin-top:-10px;margin-left:-25px;text-align:center;color:#fff;border-radius:10px;background-color:#000;background-color:rgba(0,0,0,.8)}.viewer-title{font-size:12px;line-height:1;display:inline-block;max-width:90%;margin:0 5% 5px;white-space:nowrap;text-overflow:ellipsis;opacity:.8;color:#ccc;filter:alpha(opacity=80)}.viewer-title:hover{opacity:1;filter:alpha(opacity=100)}.viewer-button{position:absolute;top:-40px;right:-40px;width:80px;height:80px;cursor:pointer;border-radius:50%;background-color:#000;background-color:rgba(0,0,0,.5)}.viewer-button:before{position:absolute;bottom:15px;left:15px}.viewer-fixed{position:fixed}.viewer-show{display:block}.viewer-hide{display:none}.viewer-invisible{visibility:hidden}.viewer-move{cursor:move;cursor:-webkit-grab;cursor:-moz-grab;cursor:grab}.viewer-fade{opacity:0;filter:alpha(opacity=0)}.viewer-in{opacity:1;filter:alpha(opacity=100)}.viewer-transition{-webkit-transition:all .3s ease-out;-o-transition:all .3s ease-out;transition:all .3s ease-out}@media (max-width:767px){.viewer-hide-xs-down{display:none}}@media (max-width:991px){.viewer-hide-sm-down{display:none}}@media (max-width:1199px){.viewer-hide-md-down{display:none}}

四、当前版本的viewer.min.js的代码

/*!
 * Viewer.js v0.3.1
 * https://github.com/fengyuanchen/viewerjs
 *
 * Copyright (c) 2015-2016 Fengyuan Chen
 * Released under the MIT license
 *
 * Date: 2016-02-02T11:35:52.542Z
 */
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t=this,i=t.options,n=t.image,a=t.viewerData,o=t.footer.offsetHeight,r=a.width,s=Xe(a.height-o,o),u=t.imageData||{};q(n,function(n,a){var o,c,d=n/a,m=r,f=s;s*d>r?f=r/d:m=s*d,m=Fe(.9*m,n),f=Fe(.9*f,a),c={naturalWidth:n,naturalHeight:a,aspectRatio:d,ratio:m/n,width:m,height:f,left:(r-m)/2,top:(s-f)/2},o=h({},c),i.rotatable&&(c.rotate=u.rotate||0,o.rotate=0),i.scalable&&(c.scaleX=u.scaleX||1,c.scaleY=u.scaleY||1,o.scaleX=1,o.scaleY=1),t.imageData=c,t.initialImageData=o,l(e)&&e()})},renderImage:function(e){var t=this,i=t.image,n=t.imageData,a=M(n);g(i,{width:n.width,height:n.height,marginLeft:n.left,marginTop:n.top,WebkitTransform:a,msTransform:a,transform:a}),l(e)&&(t.transitioning?k(i,fe,e,!0):e())},resetImage:function(){var e=this;e.image&&(P(e.image),e.image=null)},start:function(e){var t=this,i=Y(e),n=i.target;"img"===n.tagName.toLowerCase()&&(t.target=n,t.show())},click:function(e){var t=this,i=Y(e),n=i.target,a=z(n,"action"),o=t.imageData;switch(a){case"mix":t.isPlayed?t.stop():t.options.inline?t.isFulled?t.exit():t.full():t.hide();break;case"view":t.view(z(n,"index"));break;case"zoom-in":t.zoom(.1,!0);break;case"zoom-out":t.zoom(-.1,!0);break;case"one-to-one":t.toggle();break;case"reset":t.reset();break;case"prev":t.prev();break;case"play":t.play();break;case"next":t.next();break;case"rotate-left":t.rotate(-90);break;case"rotate-right":t.rotate(90);break;case"flip-horizontal":t.scaleX(-o.scaleX||-1);break;case"flip-vertical":t.scaleY(-o.scaleY||-1);break;default:t.isPlayed&&t.stop()}},load:function(){var e=this,t=e.options,i=e.image,n=e.viewerData;e.timeout&&(clearTimeout(e.timeout),e.timeout=!1),y(i,ae),i.style.cssText="width:0;height:0;margin-left:"+n.width/2+"px;margin-top:"+n.height/2+"px;max-width:none!important;visibility:visible;",e.initImage(function(){x(i,oe,t.transition),x(i,ie,t.movable),e.renderImage(function(){e.isViewed=!0,L(e.element,ke)})})},loadImage:function(e){var t=Y(e),i=t.target,n=i.parentNode,a=n.offsetWidth||30,o=n.offsetHeight||50,r=!!z(i,"filled");q(i,function(e,t){var n=e/t,s=a,l=o;o*n>a?r?s=o*n:l=a/n:r?l=a/n:s=o*n,g(i,{width:s,height:l,marginLeft:(a-s)/2,marginTop:(o-l)/2})})},resize:function(){var e=this;e.initContainer(),e.initViewer(),e.renderViewer(),e.renderList(),e.isViewed&&e.initImage(function(){e.renderImage()}),e.isPlayed&&f(S(e.player,"img"),function(t){k(t,he,v(e.loadImage,e),!0),L(t,he)})},wheel:function(e){var t=this,i=Y(e),n=Number(t.options.zoomRatio)||.1,a=1;t.isViewed&&(T(i),t.wheeling||(t.wheeling=!0,setTimeout(function(){t.wheeling=!1},50),i.deltaY?a=i.deltaY>0?1:-1:i.wheelDelta?a=-i.wheelDelta/120:i.detail&&(a=i.detail>0?1:-1),t.zoom(-a*n,!0,i)))},keydown:function(e){var t=this,i=Y(e),n=t.options,a=i.keyCode||i.which||i.charCode;if(t.isFulled&&n.keyboard)switch(a){case 27:t.isPlayed?t.stop():n.inline?t.isFulled&&t.exit():t.hide();break;case 32:t.isPlayed&&t.stop();break;case 37:t.prev();break;case 38:T(i),t.zoom(n.zoomRatio,!0);break;case 39:t.next();break;case 40:T(i),t.zoom(-n.zoomRatio,!0);break;case 48:case 49:(i.ctrlKey||i.shiftKey)&&(T(i),t.toggle())}},mousedown:function(e){var t,i,n=this,a=n.options,o=Y(e),r=a.movable?"move":!1,s=o.touches;if(n.isViewed){if(s){if(t=s.length,t>1){if(!a.zoomable||2!==t)return;i=s[1],n.startX2=i.pageX,n.startY2=i.pageY,r="zoom"}else n.isSwitchable()&&(r="switch");i=s[0]}r&&(T(o),n.action=r,n.startX=i?i.pageX:o.pageX,n.startY=i?i.pageY:o.pageY)}},mousemove:function(e){var t,i,n=this,a=n.options,o=Y(e),r=n.action,s=n.image,l=o.touches;if(n.isViewed){if(l){if(t=l.length,t>1){if(!a.zoomable||2!==t)return;i=l[1],n.endX2=i.pageX,n.endY2=i.pageY}i=l[0]}r&&(T(o),"move"===r&&a.transition&&p(s,oe)&&y(s,oe),n.endX=i?i.pageX:o.pageX,n.endY=i?i.pageY:o.pageY,n.change(o))}},mouseup:function(e){var t=this,i=Y(e),n=t.action;n&&(T(i),"move"===n&&t.options.transition&&b(t.image,oe),t.action=!1)},show:function(){var e,t=this,i=t.options,n=t.element;return i.inline||t.transitioning?t:(t.isBuilt||t.build(),e=t.viewer,l(i.show)&&k(n,ye,i.show,!0),L(n,ye)===!1?t:(b(t.body,Z),y(e,$),k(n,xe,function(){t.view(t.target?d(t.target,c(t.images)):t.index),t.target=!1},!0),i.transition?(t.transitioning=!0,b(e,oe),_(e),k(e,fe,v(t.shown,t),!0),b(e,te)):(b(e,te),t.shown()),t))},hide:function(){var e=this,t=e.options,i=e.element,n=e.viewer;return t.inline||e.transitioning||!e.isShown?e:(l(t.hide)&&k(i,ze,t.hide,!0),L(i,ze)===!1?e:(e.isViewed&&t.transition?(e.transitioning=!0,k(e.image,fe,function(){k(n,fe,v(e.hidden,e),!0),y(n,te)},!0),e.zoomTo(0,!1,!1,!0)):(y(n,te),e.hidden()),e))},view:function(e){var t,i,n,a,o,r=this,s=r.element,l=r.title,u=r.canvas;return e=Number(e)||0,!r.isShown||r.isPlayed||0>e||e>=r.length||r.isViewed&&e===r.index?r:L(s,Ee)===!1?r:(i=r.items[e],n=S(i,"img")[0],a=z(n,"originalUrl"),o=n.getAttribute("alt"),t=W.createElement("img"),t.src=a,t.alt=o,r.image=t,r.isViewed&&y(r.items[r.index],ne),b(i,ne),r.isViewed=!1,r.index=e,r.imageData=null,b(u,ae),A(u),N(u,t),r.renderList(),A(l),k(s,ke,function(){var e=r.imageData,t=e.naturalWidth,i=e.naturalHeight;C(l,o+" ("+t+" × "+i+")")},!0),t.complete?r.load():(k(t,he,v(r.load,r),!0),r.timeout&&clearTimeout(r.timeout),r.timeout=setTimeout(function(){y(t,ae),r.timeout=!1},1e3)),r)},prev:function(){var e=this;return e.view(Xe(e.index-1,0)),e},next:function(){var e=this;return e.view(Fe(e.index+1,e.length-1)),e},move:function(e,t){var i=this,n=i.imageData;return i.moveTo(o(e)?e:n.left+Number(e),o(t)?t:n.top+Number(t)),i},moveTo:function(e,t){var i=this,n=i.imageData,r=!1;return o(t)&&(t=e),e=Number(e),t=Number(t),i.isViewed&&!i.isPlayed&&i.options.movable&&(a(e)&&(n.left=e,r=!0),a(t)&&(n.top=t,r=!0),r&&i.renderImage()),i},zoom:function(e,t,i){var n=this,a=n.imageData;return e=Number(e),e=0>e?1/(1-e):1+e,n.zoomTo(a.width*e/a.naturalWidth,t,i),n},zoomTo:function(e,t,i,n){var o,r,s,l,u=this,c=u.options,d=.01,m=100,f=u.imageData;return e=Xe(0,e),a(e)&&u.isViewed&&!u.isPlayed&&(n||c.zoomable)&&(n||(d=Xe(d,c.minZoomRatio),m=Fe(m,c.maxZoomRatio),e=Fe(Xe(e,d),m)),e>.95&&1.05>e&&(e=1),o=f.naturalWidth*e,r=f.naturalHeight*e,i?(s=F(u.viewer),l=i.touches?X(i.touches):{pageX:i.pageX,pageY:i.pageY},f.left-=(o-f.width)*((l.pageX-s.left-f.left)/f.width),f.top-=(r-f.height)*((l.pageY-s.top-f.top)/f.height)):(f.left-=(o-f.width)/2,f.top-=(r-f.height)/2),f.width=o,f.height=r,f.ratio=e,u.renderImage(),t&&u.tooltip()),u},rotate:function(e){var t=this;return t.rotateTo((t.imageData.rotate||0)+Number(e)),t},rotateTo:function(e){var t=this,i=t.imageData;return e=Number(e),a(e)&&t.isViewed&&!t.isPlayed&&t.options.rotatable&&(i.rotate=e,t.renderImage()),t},scale:function(e,t){var i=this,n=i.imageData,r=!1;return o(t)&&(t=e),e=Number(e),t=Number(t),i.isViewed&&!i.isPlayed&&i.options.scalable&&(a(e)&&(n.scaleX=e,r=!0),a(t)&&(n.scaleY=t,r=!0),r&&i.renderImage()),i},scaleX:function(e){var t=this;return t.scale(e,t.imageData.scaleY),t},scaleY:function(e){var t=this;return t.scale(t.imageData.scaleX,e),t},play:function(){var e,t=this,i=t.options,n=t.player,o=v(t.loadImage,t),r=[],s=0,l=0;return!t.isShown||t.isPlayed?t:(i.fullscreen&&t.requestFullscreen(),t.isPlayed=!0,b(n,K),f(t.items,function(e,t){var a=S(e,"img")[0],u=W.createElement("img");u.src=z(a,"originalUrl"),u.alt=a.getAttribute("alt"),s++,b(u,ee),x(u,oe,i.transition),p(e,ne)&&(b(u,te),l=t),r.push(u),k(u,he,o,!0),N(n,u)}),a(i.interval)&&i.interval>0&&(e=function(){t.playing=setTimeout(function(){y(r[l],te),l++,l=s>l?l:0,b(r[l],te),e()},i.interval)},s>1&&e()),t)},stop:function(){var e=this,t=e.player;return e.isPlayed?(e.options.fullscreen&&e.exitFullscreen(),e.isPlayed=!1,clearTimeout(e.playing),y(t,K),A(t),e):e},full:function(){var e=this,t=e.options,i=e.viewer,n=e.image,a=e.list;return!e.isShown||e.isPlayed||e.isFulled||!t.inline?e:(e.isFulled=!0,b(e.body,Z),b(e.button,se),t.transition&&(y(n,oe),y(a,oe)),b(i,U),i.setAttribute("style",""),g(i,{zIndex:t.zIndex}),e.initContainer(),e.viewerData=h({},e.containerData),e.renderList(),e.initImage(function(){e.renderImage(function(){t.transition&&setTimeout(function(){b(n,oe),b(a,oe)},0)})}),e)},exit:function(){var e=this,t=e.options,i=e.viewer,n=e.image,a=e.list;return e.isFulled?(e.isFulled=!1,y(e.body,Z),y(e.button,se),t.transition&&(y(n,oe),y(a,oe)),y(i,U),g(i,{zIndex:t.zIndexInline}),e.viewerData=h({},e.parentData),e.renderViewer(),e.renderList(),e.initImage(function(){e.renderImage(function(){t.transition&&setTimeout(function(){b(n,oe),b(a,oe)},0)})}),e):e},tooltip:function(){var e=this,t=e.options,i=e.tooltipBox,n=e.imageData;return e.isViewed&&!e.isPlayed&&t.tooltip?(C(i,Ne(100*n.ratio)+"%"),e.tooltiping?clearTimeout(e.tooltiping):t.transition?(e.fading&&L(i,fe),b(i,K),b(i,ee),b(i,oe),_(i),b(i,te)):b(i,K),e.tooltiping=setTimeout(function(){t.transition?(k(i,fe,function(){y(i,K),y(i,ee),y(i,oe),e.fading=!1},!0),y(i,te),e.fading=!0):y(i,K),e.tooltiping=!1},1e3),e):e},toggle:function(){var e=this;return 1===e.imageData.ratio?e.zoomTo(e.initialImageData.ratio,!0):e.zoomTo(1,!0),e},reset:function(){var e=this;return e.isViewed&&!e.isPlayed&&(e.imageData=h({},e.initialImageData),e.renderImage()),e},update:function(){var e,t=this,i=[];return t.isImg&&!t.element.parentNode?t.destroy():(t.length=t.images.length,t.isBuilt&&(f(t.items,function(e,n){var a=S(e,"img")[0],o=t.images[n];o?o.src!==a.src&&i.push(n):i.push(n)}),g(t.list,{width:"auto"}),t.initList(),t.isShown&&(t.length?t.isViewed&&(e=d(t.index,i),e>=0?(t.isViewed=!1,t.view(Xe(t.index-(e+1),0))):b(t.items[t.index],ne)):(t.image=null,t.isViewed=!1,t.index=0,t.imageData=null,A(t.canvas),A(t.title)))),t)},destroy:function(){var e=this,t=e.element;return e.options.inline?e.unbind():(e.isShown&&e.unbind(),I(t,ge,e._start)),e.unbuild(),E(t,j),e},shown:function(){var e=this,t=e.options,i=e.element;e.transitioning=!1,e.isFulled=!0,e.isShown=!0,e.isVisible=!0,e.render(),e.bind(),l(t.shown)&&k(i,xe,t.shown,!0),L(i,xe)},hidden:function(){var e=this,t=e.options,i=e.element;e.transitioning=!1,e.isViewed=!1,e.isFulled=!1,e.isShown=!1,e.isVisible=!1,e.unbind(),y(e.body,Z),b(e.viewer,$),e.resetList(),e.resetImage(),l(t.hidden)&&k(i,De,t.hidden,!0),L(i,De)},requestFullscreen:function(){var e=this,t=W.documentElement;!e.isFulled||W.fullscreenElement||W.mozFullScreenElement||W.webkitFullscreenElement||W.msFullscreenElement||(t.requestFullscreen?t.requestFullscreen():t.msRequestFullscreen?t.msRequestFullscreen():t.mozRequestFullScreen?t.mozRequestFullScreen():t.webkitRequestFullscreen&&t.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT))},exitFullscreen:function(){var e=this;e.isFulled&&(W.exitFullscreen?W.exitFullscreen():W.msExitFullscreen?W.msExitFullscreen():W.mozCancelFullScreen?W.mozCancelFullScreen():W.webkitExitFullscreen&&W.webkitExitFullscreen())},change:function(e){var t=this,i=t.endX-t.startX,n=t.endY-t.startY;switch(t.action){case"move":t.move(i,n);break;case"zoom":t.zoom(function(e,t,i,n){var a=Ve(e*e+t*t),o=Ve(i*i+n*n);return(o-a)/a}(Se(t.startX-t.startX2),Se(t.startY-t.startY2),Se(t.endX-t.endX2),Se(t.endY-t.endY2)),!1,e),t.startX2=t.endX2,t.startY2=t.endY2;break;case"switch":t.action="switched",Se(i)>Se(n)&&(i>1?t.prev():-1>i&&t.next())}t.startX=t.endX,t.startY=t.endY},isSwitchable:function(){var e=this,t=e.imageData,i=e.viewerData;return t.left>=0&&t.top>=0&&t.width<=i.width&&t.height<=i.height}},O.DEFAULTS={inline:!1,button:!0,navbar:!0,title:!0,toolbar:!0,tooltip:!0,movable:!0,zoomable:!0,rotatable:!0,scalable:!0,transition:!0,fullscreen:!0,keyboard:!0,interval:5e3,minWidth:200,minHeight:100,zoomRatio:.1,minZoomRatio:.01,maxZoomRatio:100,zIndex:2015,zIndexInline:0,url:"src",build:null,built:null,show:null,shown:null,hide:null,hidden:null,view:null,viewed:null},O.TEMPLATE='<div class="viewer-container"><div class="viewer-canvas"></div><div class="viewer-footer"><div class="viewer-title"></div><ul class="viewer-toolbar"><li class="viewer-zoom-in" data-action="zoom-in"></li><li class="viewer-zoom-out" data-action="zoom-out"></li><li class="viewer-one-to-one" data-action="one-to-one"></li><li class="viewer-reset" data-action="reset"></li><li class="viewer-prev" data-action="prev"></li><li class="viewer-play" data-action="play"></li><li class="viewer-next" data-action="next"></li><li class="viewer-rotate-left" data-action="rotate-left"></li><li class="viewer-rotate-right" data-action="rotate-right"></li><li class="viewer-flip-horizontal" data-action="flip-horizontal"></li><li class="viewer-flip-vertical" data-action="flip-vertical"></li></ul><div class="viewer-navbar"><ul class="viewer-list"></ul></div></div><div class="viewer-tooltip"></div><div class="viewer-button" data-action="mix"></div><div class="viewer-player"></div></div>';var Re=e.Viewer;return O.noConflict=function(){return e.Viewer=Re,O},O.setDefaults=function(e){h(O.DEFAULTS,e)},"function"==typeof define&&define.amd&&define("viewer",[],function(){return O}),t||(e.Viewer=O),O});

五、viewer.js介绍

Viewer.js 是一款强大的图片查看器，像门户网站一般都会有各自的图片查看器，如果您正需要一款强大的图片查看器，也许 Viewer.js 是一个很好的选择。Viewer.js 有以下特点：

  • 支持移动设备触摸事件
  • 支持响应式
  • 支持放大/缩小
  • 支持旋转（类似微博的图片旋转）
  • 支持水平/垂直翻转
  • 支持图片移动
  • 支持键盘
  • 支持全屏幻灯片模式（可做屏保）
  • 支持缩略图
  • 支持标题显示
  • 支持多种自定义事件

六、浏览器兼容

IE

Edge

Chrome

Firefox

Opera

Safari

IE8+ ✔Edge ✔Chrome ✔Firefox ✔Opera ✔Safari ✔

注意：JS 版本兼容 IE9+，jQuery 版本兼容 IE8+。

七、更多配置

名称类型默认值说明
inline布尔值false启用 inline 模式
button布尔值true显示右上角关闭按钮（jQuery 版本无效）
navbar布尔值/整型true显示缩略图导航
title布尔值/整型true显示当前图片的标题（现实 alt 属性及图片尺寸）
toolbar布尔值/整型true显示工具栏
tooltip布尔值true显示缩放百分比
movable布尔值true图片是否可移动
zoomable布尔值true图片是否可缩放
rotatable布尔值true图片是否可旋转
scalable布尔值true图片是否可翻转
transition布尔值true使用 CSS3 过度
fullscreen布尔值true播放时是否全屏
keyboard布尔值true是否支持键盘
interval整型5000播放间隔，单位为毫秒
zoomRatio浮点型0.1鼠标滚动时的缩放比例
minZoomRatio浮点型0.01最小缩放比例
maxZoomRatio数字100最大缩放比例
zIndex数字2015设置图片查看器 modal 模式时的 z-index
zIndexInline数字0设置图片查看器 inline 模式时的 z-index
url字符串/函数src设置大图片的 url
build函数null回调函数，具体查看演示
built函数null回调函数，具体查看演示
show函数null回调函数，具体查看演示
shown函数null回调函数，具体查看演示
hide函数null回调函数，具体查看演示
hidden函数null回调函数，具体查看演示
view函数null回调函数，具体查看演示
viewed函数null回调函数，具体查看演示

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