8 lines
15 KiB
JavaScript
8 lines
15 KiB
JavaScript
/**
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* apng-canvas v2.1.2
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*
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* @copyright 2011-2019 David Mzareulyan
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* @link https://github.com/davidmz/apng-canvas
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* @license MIT
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*/
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!function i(o,a,s){function u(n,t){if(!a[n]){if(!o[n]){var e="function"==typeof require&&require;if(!t&&e)return e(n,!0);if(c)return c(n,!0);throw new Error("Cannot find module '"+n+"'")}var r=a[n]={exports:{}};o[n][0].call(r.exports,function(t){var e=o[n][1][t];return u(e||t)},r,r.exports,i,o,a,s)}return a[n].exports}for(var c="function"==typeof require&&require,t=0;t<s.length;t++)u(s[t]);return u}({1:[function(Y,n,r){(function(G,q){var t,e;t=this,e=function(){"use strict";function u(t){return"function"==typeof t}var n=Array.isArray?Array.isArray:function(t){return"[object Array]"===Object.prototype.toString.call(t)},r=0,e=void 0,i=void 0,a=function(t,e){l[r]=t,l[r+1]=e,2===(r+=2)&&(i?i(d):g())};var t="undefined"!=typeof window?window:void 0,o=t||{},s=o.MutationObserver||o.WebKitMutationObserver,c="undefined"==typeof self&&void 0!==G&&"[object process]"==={}.toString.call(G),f="undefined"!=typeof Uint8ClampedArray&&"undefined"!=typeof importScripts&&"undefined"!=typeof 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e=c[0].getImageData(0,0,this.width,this.height);t.putImageData(e,0,0)}c.push(t),t._apng_animation=this},this.removeContext=function(t){var e=c.indexOf(t);-1!==e&&(c.splice(e,1),0===c.length&&this.rewind(),"_apng_animation"in t&&delete t._apng_animation)},this.isPlayed=function(){return s},this.isFinished=function(){return u};var r=this,i=0,o=0,a=null,s=!1,u=!1,c=[],e=function(t){for(;s&&i<=t;)n(t);s&&requestAnimationFrame(e)},n=function(t){var e=o++%r.frames.length,n=r.frames[e];if(0==r.numPlays||o/r.frames.length<=r.numPlays){for(0==e&&(c.forEach(function(t){t.clearRect(0,0,r.width,r.height)}),a=null,2==n.disposeOp&&(n.disposeOp=1)),a&&1==a.disposeOp?c.forEach(function(t){t.clearRect(a.left,a.top,a.width,a.height)}):a&&2==a.disposeOp&&c.forEach(function(t){t.putImageData(a.iData,a.left,a.top)}),(a=n).iData=null,2==a.disposeOp&&(a.iData=c[0].getImageData(n.left,n.top,n.width,n.height)),0==n.blendOp&&c.forEach(function(t){t.clearRect(n.left,n.top,n.width,n.height)}),c.forEach(function(t){t.drawImage(n.img,n.left,n.top)}),0==i&&(i=t);t>i+r.playTime;)i+=r.playTime;i+=n.delay}else u=!(s=!1)}}},{}],4:[function(t,e,n){"use strict";for(var a=new Uint32Array(256),r=0;r<256;r++){for(var i=r,o=0;o<8;o++)i=1&i?3988292384^i>>>1:i>>>1;a[r]=i}e.exports=function(t,e,n){for(var r=-1,i=e=e||0,o=e+(n=n||t.length-e);i<o;i++)r=r>>>8^a[255&(r^t[i])];return-1^r}},{}],5:[function(a,t,e){(function(t){"use strict";var e=a("./support-test"),n=a("./parser"),r=a("./loader"),i=t.APNG={};i.checkNativeFeatures=e.checkNativeFeatures,i.ifNeeded=e.ifNeeded,i.parseBuffer=function(t){return n(t)};var o={};i.parseURL=function(t){return t in o||(o[t]=r(t).then(n)),o[t]},i.animateContext=function(t,e){return i.parseURL(t).then(function(t){return t.addContext(e),t.play(),t})},i.animateImage=function(s){return s.setAttribute("data-is-apng","progress"),i.parseURL(s.src).then(function(t){s.setAttribute("data-is-apng","yes");var e=document.createElement("canvas");e.width=t.width,e.height=t.height,Array.prototype.slice.call(s.attributes).forEach(function(t){-1==["alt","src","usemap","ismap","data-is-apng","width","height"].indexOf(t.nodeName)&&e.setAttributeNode(t.cloneNode(!1))}),e.setAttribute("data-apng-src",s.src),""!=s.alt&&e.appendChild(document.createTextNode(s.alt));var n="",r="",i=0,o="";""!=s.style.width&&"auto"!=s.style.width?n=s.style.width:s.hasAttribute("width")&&(n=s.getAttribute("width")+"px"),""!=s.style.height&&"auto"!=s.style.height?r=s.style.height:s.hasAttribute("height")&&(r=s.getAttribute("height")+"px"),""!=n&&""==r&&(i=parseFloat(n),o=n.match(/\D+$/)[0],r=Math.round(e.height*i/e.width)+o),""!=r&&""==n&&(i=parseFloat(r),o=r.match(/\D+$/)[0],n=Math.round(e.width*i/e.height)+o),e.style.width=n,e.style.height=r;var a=s.parentNode;a.insertBefore(e,s),a.removeChild(s),t.addContext(e.getContext("2d")),t.play()},function(){s.setAttribute("data-is-apng","no")})},i.releaseCanvas=function(t){var e=t.getContext("2d");"_apng_animation"in e&&e._apng_animation.removeContext(e)}}).call(this,"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./loader":6,"./parser":7,"./support-test":8}],6:[function(t,e,n){"use strict";var i=i||t("es6-promise").Promise;e.exports=function(r){return new i(function(t,e){var n=new XMLHttpRequest;n.open("GET",r),n.responseType="arraybuffer",n.onload=function(){200==this.status?t(this.response):e(this)},n.send()})}},{"es6-promise":1}],7:[function(t,e,n){"use strict";var r=r||t("es6-promise").Promise,m=t("./animation"),o=t("./crc32"),g=new Uint8Array([137,80,78,71,13,10,26,10]);e.exports=function(t){var A=new Uint8Array(t);return new r(function(t,e){for(var n=0;n<g.length;n++)if(g[n]!=A[n])return void e("Not a PNG file (invalid file signature)");var r=!1;if(w(A,function(t){return"acTL"!=t||!(r=!0)}),r){var a=[],s=[],u=null,c=null,f=new m;if(w(A,function(t,e,n,r){switch(t){case"IHDR":u=e.subarray(n+8,n+8+r),f.width=y(e,n+8),f.height=y(e,n+12);break;case"acTL":f.numPlays=y(e,n+8+4);break;case"fcTL":c&&f.frames.push(c),(c={}).width=y(e,n+8+4),c.height=y(e,n+8+8),c.left=y(e,n+8+12),c.top=y(e,n+8+16);var i=_(e,n+8+20),o=_(e,n+8+22);0==o&&(o=100),c.delay=1e3*i/o,c.delay<=10&&(c.delay=100),f.playTime+=c.delay,c.disposeOp=b(e,n+8+24),c.blendOp=b(e,n+8+25),c.dataParts=[];break;case"fdAT":c&&c.dataParts.push(e.subarray(n+8+4,n+8+r));break;case"IDAT":c&&c.dataParts.push(e.subarray(n+8,n+8+r));break;case"IEND":s.push(E(e,n,12+r));break;default:a.push(E(e,n,12+r))}}),c&&f.frames.push(c),0!=f.frames.length)for(var i=0,o=new Blob(a),h=new Blob(s),l=0;l<f.frames.length;l++){c=f.frames[l];var d=[];d.push(g),u.set(P(c.width),0),u.set(P(c.height),4),d.push(x("IHDR",u)),d.push(o);for(var p=0;p<c.dataParts.length;p++)d.push(x("IDAT",c.dataParts[p]));d.push(h);var v=URL.createObjectURL(new Blob(d,{type:"image/png"}));delete c.dataParts,d=null,c.img=document.createElement("img"),c.img.onload=function(){URL.revokeObjectURL(this.src),++i==f.frames.length&&t(f)},c.img.onerror=function(){e("Image creation error")},c.img.src=v}else e("Not an animated PNG")}else e("Not an animated PNG")})};var w=function(t,e){var n=8;do{var r=y(t,n),i=a(t,n+4,4),o=e(i,t,n,r);n+=12+r}while(!1!==o&&"IEND"!=i&&n<t.length)},y=function(t,e){var n=0;n+=t[0+e]<<24>>>0;for(var r=1;r<4;r++)n+=t[r+e]<<8*(3-r);return n},_=function(t,e){for(var n=0,r=0;r<2;r++)n+=t[r+e]<<8*(1-r);return n},b=function(t,e){return t[e]},E=function(t,e,n){var r=new Uint8Array(n);return r.set(t.subarray(e,e+n)),r},a=function(t,e,n){var r=Array.prototype.slice.call(t.subarray(e,e+n));return String.fromCharCode.apply(String,r)},P=function(t){return[t>>>24&255,t>>>16&255,t>>>8&255,255&t]},x=function(t,e){var n=t.length+e.length,r=new Uint8Array(new ArrayBuffer(n+8));r.set(P(e.length),0),r.set(function(t){for(var e=[],n=0;n<t.length;n++)e.push(t.charCodeAt(n));return e}(t),4),r.set(e,8);var i=o(r,4,n);return r.set(P(i),n+4),r}},{"./animation":3,"./crc32":4,"es6-promise":1}],8:[function(o,a,t){(function(t){"use strict";var e,n,r=r||o("es6-promise").Promise,i=(e=function(e){var n=document.createElement("canvas"),r={TypedArrays:"ArrayBuffer"in t,BlobURLs:"URL"in t,requestAnimationFrame:"requestAnimationFrame"in t,pageProtocol:"http:"==location.protocol||"https:"==location.protocol,canvas:"getContext"in document.createElement("canvas"),APNG:!1};if(r.canvas){var i=new Image;i.onload=function(){var t=n.getContext("2d");t.drawImage(i,0,0),r.APNG=0===t.getImageData(0,0,1,1).data[3],e(r)},i.src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAACGFjVEwAAAABAAAAAcMq2TYAAAANSURBVAiZY2BgYPgPAAEEAQB9ssjfAAAAGmZjVEwAAAAAAAAAAQAAAAEAAAAAAAAAAAD6A+gBAbNU+2sAAAARZmRBVAAAAAEImWNgYGBgAAAABQAB6MzFdgAAAABJRU5ErkJggg=="}else e(r)},n=null,function(t){return n=n||new r(e),t&&n.then(t),n});a.exports={checkNativeFeatures:i,ifNeeded:function(r){return void 0===r&&(r=!1),i().then(function(t){if(t.APNG&&!r)reject();else{var e=!0;for(var n in t)t.hasOwnProperty(n)&&"APNG"!=n&&(e=e&&t[n])}})}}}).call(this,"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"es6-promise":1}]},{},[5]); |