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medium-zoom.1.0.8.min.js

medium-zoom.1.0.8.min.js 9.4 KB
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  1. /*! medium-zoom 1.0.8 | MIT License | https://github.com/francoischalifour/medium-zoom */
    2. 

  2. !function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).mediumZoom=t()}(this,(function(){"use strict";var e=Object.assign||function(e){for(var t=1;t<arguments.length;t++){var o=arguments[t];for(var n in o)Object.prototype.hasOwnProperty.call(o,n)&&(e[n]=o[n])}return e},t=function(e){return"IMG"===e.tagName},o=function(e){return e&&1===e.nodeType},n=function(e){return".svg"===(e.currentSrc||e.src).substr(-4).toLowerCase()},i=function(e){try{return Array.isArray(e)?e.filter(t):function(e){return NodeList.prototype.isPrototypeOf(e)}(e)?[].slice.call(e).filter(t):o(e)?[e].filter(t):"string"==typeof e?[].slice.call(document.querySelectorAll(e)).filter(t):[]}catch(e){throw new TypeError("The provided selector is invalid.\nExpects a CSS selector, a Node element, a NodeList or an array.\nSee: https://github.com/francoischalifour/medium-zoom")}},r=function(e){var t=document.createElement("div");return t.classList.add("medium-zoom-overlay"),t.style.background=e,t},d=function(e){var t=e.getBoundingClientRect(),o=t.top,n=t.left,i=t.width,r=t.height,d=e.cloneNode(),a=window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop||0,m=window.pageXOffset||document.documentElement.scrollLeft||document.body.scrollLeft||0;return d.removeAttribute("id"),d.style.position="absolute",d.style.top=o+a+"px",d.style.left=n+m+"px",d.style.width=i+"px",d.style.height=r+"px",d.style.transform="",d},a=function(t,o){var n=e({bubbles:!1,cancelable:!1,detail:void 0},o);if("function"==typeof window.CustomEvent)return new CustomEvent(t,n);var i=document.createEvent("CustomEvent");return i.initCustomEvent(t,n.bubbles,n.cancelable,n.detail),i};return function(e,t){void 0===t&&(t={});var o=t.insertAt;if(e&&"undefined"!=typeof document){var n=document.head||document.getElementsByTagName("head")[0],i=document.createElement("style");i.type="text/css","top"===o&&n.firstChild?n.insertBefore(i,n.firstChild):n.appendChild(i),i.styleSheet?i.styleSheet.cssText=e:i.appendChild(document.createTextNode(e))}}(".medium-zoom-overlay{position:fixed;top:0;right:0;bottom:0;left:0;opacity:0;transition:opacity .3s;will-change:opacity}.medium-zoom--opened .medium-zoom-overlay{cursor:pointer;cursor:zoom-out;opacity:1}.medium-zoom-image{cursor:pointer;cursor:zoom-in;transition:transform .3s cubic-bezier(.2,0,.2,1)!important}.medium-zoom-image--hidden{visibility:hidden}.medium-zoom-image--opened{position:relative;cursor:pointer;cursor:zoom-out;will-change:transform}"),function t(m){var l=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},c=window.Promise||function(e){function t(){}e(t,t)},u=function(e){var t=e.target;t!==N?-1!==x.indexOf(t)&&w({target:t}):E()},s=function(){if(!A&&k.original){var e=window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop||0;Math.abs(S-e)>T.scrollOffset&&setTimeout(E,150)}},f=function(e){var t=e.key||e.keyCode;"Escape"!==t&&"Esc"!==t&&27!==t||E()},p=function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},n=t;if(t.background&&(N.style.background=t.background),t.container&&t.container instanceof Object&&(n.container=e({},T.container,t.container)),t.template){var i=o(t.template)?t.template:document.querySelector(t.template);n.template=i}return T=e({},T,n),x.forEach((function(e){e.dispatchEvent(a("medium-zoom:update",{detail:{zoom:j}}))})),j},g=function(){var o=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};return t(e({},T,o))},v=function(){for(var e=arguments.length,t=Array(e),o=0;o<e;o++)t[o]=arguments[o];var n=t.reduce((function(e,t){return[].concat(e,i(t))}),[]);return n.filter((function(e){return-1===x.indexOf(e)})).forEach((function(e){x.push(e),e.classList.add("medium-zoom-image")})),O.forEach((function(e){var t=e.type,o=e.listener,i=e.options;n.forEach((function(e){e.addEventListener(t,o,i)}))})),j},h=function(){for(var e=arguments.length,t=Array(e),o=0;o<e;o++)t[o]=arguments[o];k.zoomed&&E();var n=t.length>0?t.reduce((function(e,t){return[].concat(e,i(t))}),[]):x;return n.forEach((function(e){e.classList.remove("medium-zoom-image"),e.dispatchEvent(a("medium-zoom:detach",{detail:{zoom:j}}))})),x=x.filter((function(e){return-1===n.indexOf(e)})),j},z=function(e,t){var o=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};return x.forEach((function(n){n.addEventListener("medium-zoom:"+e,t,o)})),O.push({type:"medium-zoom:"+e,listener:t,options:o}),j},y=function(e,t){var o=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};return x.forEach((function(n){n.removeEventListener("medium-zoom:"+e,t,o)})),O=O.filter((function(o){return!(o.type==="medium-zoom:"+e&&o.listener.toString()===t.toString())})),j},b=function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},i=t.target,r=function(){var t={width:document.documentElement.clientWidth,height:document.documentElement.clientHeight,left:0,top:0,right:0,bottom:0},i=void 0,r=void 0;if(T.container)if(T.container instanceof Object)i=(t=e({},t,T.container)).width-t.left-t.right-2*T.margin,r=t.height-t.top-t.bottom-2*T.margin;else{var d=(o(T.container)?T.container:document.querySelector(T.container)).getBoundingClientRect(),a=d.width,m=d.height,l=d.left,c=d.top;t=e({},t,{width:a,height:m,left:l,top:c})}i=i||t.width-2*T.margin,r=r||t.height-2*T.margin;var u=k.zoomedHd||k.original,s=n(u)?i:u.naturalWidth||i,f=n(u)?r:u.naturalHeight||r,p=u.getBoundingClientRect(),g=p.top,v=p.left,h=p.width,z=p.height,y=Math.min(Math.max(h,s),i)/h,b=Math.min(Math.max(z,f),r)/z,E=Math.min(y,b),w="scale("+E+") translate3d("+((i-h)/2-v+T.margin+t.left)/E+"px, "+((r-z)/2-g+T.margin+t.top)/E+"px, 0)";k.zoomed.style.transform=w,k.zoomedHd&&(k.zoomedHd.style.transform=w)};return new c((function(e){if(i&&-1===x.indexOf(i))e(j);else{if(k.zoomed)e(j);else{if(i)k.original=i;else{if(!(x.length>0))return void e(j);var t=x;k.original=t[0]}if(k.original.dispatchEvent(a("medium-zoom:open",{detail:{zoom:j}})),S=window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop||0,A=!0,k.zoomed=d(k.original),document.body.appendChild(N),T.template){var n=o(T.template)?T.template:document.querySelector(T.template);k.template=document.createElement("div"),k.template.appendChild(n.content.cloneNode(!0)),document.body.appendChild(k.template)}if(k.original.parentElement&&"PICTURE"===k.original.parentElement.tagName&&k.original.currentSrc&&(k.zoomed.src=k.original.currentSrc),document.body.appendChild(k.zoomed),window.requestAnimationFrame((function(){document.body.classList.add("medium-zoom--opened")})),k.original.classList.add("medium-zoom-image--hidden"),k.zoomed.classList.add("medium-zoom-image--opened"),k.zoomed.addEventListener("click",E),k.zoomed.addEventListener("transitionend",(function t(){A=!1,k.zoomed.removeEventListener("transitionend",t),k.original.dispatchEvent(a("medium-zoom:opened",{detail:{zoom:j}})),e(j)})),k.original.getAttribute("data-zoom-src")){k.zoomedHd=k.zoomed.cloneNode(),k.zoomedHd.removeAttribute("srcset"),k.zoomedHd.removeAttribute("sizes"),k.zoomedHd.removeAttribute("loading"),k.zoomedHd.src=k.zoomed.getAttribute("data-zoom-src"),k.zoomedHd.onerror=function(){clearInterval(m),console.warn("Unable to reach the zoom image target "+k.zoomedHd.src),k.zoomedHd=null,r()};var m=setInterval((function(){k.zoomedHd.complete&&(clearInterval(m),k.zoomedHd.classList.add("medium-zoom-image--opened"),k.zoomedHd.addEventListener("click",E),document.body.appendChild(k.zoomedHd),r())}),10)}else if(k.original.hasAttribute("srcset")){k.zoomedHd=k.zoomed.cloneNode(),k.zoomedHd.removeAttribute("sizes"),k.zoomedHd.removeAttribute("loading");var l=k.zoomedHd.addEventListener("load",(function(){k.zoomedHd.removeEventListener("load",l),k.zoomedHd.classList.add("medium-zoom-image--opened"),k.zoomedHd.addEventListener("click",E),document.body.appendChild(k.zoomedHd),r()}))}else r()}}}))},E=function(){return new c((function(e){if(!A&&k.original){A=!0,document.body.classList.remove("medium-zoom--opened"),k.zoomed.style.transform="",k.zoomedHd&&(k.zoomedHd.style.transform=""),k.template&&(k.template.style.transition="opacity 150ms",k.template.style.opacity=0),k.original.dispatchEvent(a("medium-zoom:close",{detail:{zoom:j}})),k.zoomed.addEventListener("transitionend",(function t(){k.original.classList.remove("medium-zoom-image--hidden"),document.body.removeChild(k.zoomed),k.zoomedHd&&document.body.removeChild(k.zoomedHd),document.body.removeChild(N),k.zoomed.classList.remove("medium-zoom-image--opened"),k.template&&document.body.removeChild(k.template),A=!1,k.zoomed.removeEventListener("transitionend",t),k.original.dispatchEvent(a("medium-zoom:closed",{detail:{zoom:j}})),k.original=null,k.zoomed=null,k.zoomedHd=null,k.template=null,e(j)}))}else e(j)}))},w=function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=e.target;return k.original?E():b({target:t})},L=function(){return T},H=function(){return x},C=function(){return k.original},x=[],O=[],A=!1,S=0,T=l,k={original:null,zoomed:null,zoomedHd:null,template:null};"[object Object]"===Object.prototype.toString.call(m)?T=m:(m||"string"==typeof m)&&v(m),T=e({margin:0,background:"#fff",scrollOffset:40,container:null,template:null},T);var N=r(T.background);document.addEventListener("click",u),document.addEventListener("keyup",f),document.addEventListener("scroll",s),window.addEventListener("resize",E);var j={open:b,close:E,toggle:w,update:p,clone:g,attach:v,detach:h,on:z,off:y,getOptions:L,getImages:H,getZoomedImage:C};return j}}));
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