5 lines
No EOL
12 KiB
JavaScript
5 lines
No EOL
12 KiB
JavaScript
/*! rasterizeHTML.js - v1.3.1 - 2023-07-06
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* http://www.github.com/cburgmer/rasterizeHTML.js
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* Copyright (c) 2023 Christoph Burgmer; Licensed MIT */
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!function(o,i){void 0===o&&void 0!==window&&(o=window),"function"==typeof define&&define.amd?define(["url","xmlserializer","sane-domparser-error","inlineresources"],function(e,t,n,r){return o.rasterizeHTML=i(e,t,n,r)}):"object"==typeof module&&module.exports?module.exports=i(require("url"),require("xmlserializer"),require("sane-domparser-error"),require("inlineresources")):o.rasterizeHTML=i(o.url,o.xmlserializer,o.sanedomparsererror,o.inlineresources)}(this,function(e,t,n,r){var o=function(n){"use strict";var o={},t=[];o.joinUrl=function(e,t){return e?n.resolve(e,t):t},o.getConstantUniqueIdFor=function(e){return t.indexOf(e)<0&&t.push(e),t.indexOf(e)},o.clone=function(e){var t,n={};for(t in e)e.hasOwnProperty(t)&&(n[t]=e[t]);return n};return o.parseOptionalParameters=function(e){var t,n,r={canvas:null,options:{}};return null==e[0]||(t=e[0],"object"==typeof(n=t)&&null!==n&&Object.prototype.toString.apply(t).match(/\[object 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r=e.querySelector(t),o=":"+n,t="rasterizehtml"+n;r&&(c[n]?i.addClassNameRecursively(r,t):i.addClassName(r,t),i.rewriteCssSelectorWith(e,o,"."+t))},e.persistInputValues=function(e){function t(e){return"checkbox"===e.type||"radio"===e.type}var n=e.querySelectorAll("input"),e=e.querySelectorAll("textarea");r(n).filter(t).forEach(function(e){e.checked?e.setAttribute("checked",""):e.removeAttribute("checked")}),r(n).filter(function(e){return!t(e)}).forEach(function(e){e.setAttribute("value",e.value)}),r(e).forEach(function(e){e.textContent=e.value})},e.rewriteTagNameSelectorsToLowerCase=function(e){i.lowercaseCssTypeSelectors(e,i.findHtmlOnlyNodeNames(e))},e}(function(){"use strict";function c(e){return Array.prototype.slice.call(e)}var n={};n.addClassName=function(e,t){e.className+=" "+t},n.addClassNameRecursively=function(e,t){n.addClassName(e,t),e.parentNode!==e.ownerDocument&&n.addClassNameRecursively(e.parentNode,t)};function r(e,t,o){var i="((?:^|[^.#:\\w])|(?=\\W))("+t.join("|")+")(?=\\W|$)";c(e.querySelectorAll("style")).forEach(function(e){var t,n;void 0===e.sheet&&(t=e,n=document.implementation.createHTMLDocument(""),(r=document.createElement("style")).textContent=t.textContent,n.body.appendChild(r),t.sheet=r.sheet);var r=c(e.sheet.cssRules).filter(function(e){return e.selectorText&&new RegExp(i,"i").test(e.selectorText)});r.length&&(r.forEach(function(e){var t,n=e.selectorText.replace(new RegExp(i,"gi"),function(e,t,n){return t+o(n)});n!==e.selectorText&&(t=n,e=(n=e).cssText.replace(/^[^\{]+/,""),u(n,t+" "+e))}),e.textContent=a(e.sheet.cssRules))})}var u=function(e,t){var n=e.parentStyleSheet,e=c(n.cssRules).indexOf(e);n.insertRule(t,e+1),n.deleteRule(e)},a=function(e){return c(e).reduce(function(e,t){return e+t.cssText},"")};return n.rewriteCssSelectorWith=function(e,t,n){r(e,[t],function(){return n})},n.lowercaseCssTypeSelectors=function(e,t){r(e,t,function(e){return e.toLowerCase()})},n.findHtmlOnlyNodeNames=function(e){for(var t,n=e.ownerDocument.createTreeWalker(e,NodeFilter.SHOW_ELEMENT),r={},o={};t=n.currentNode.tagName.toLowerCase(),"http://www.w3.org/1999/xhtml"===n.currentNode.namespaceURI?r[t]=!0:o[t]=!0,n.nextNode(););return Object.keys(r).filter(function(e){return!o[e]})},n}()),i=function(a,f,t,m){"use strict";var e={};e.executeJavascript=function(s,l){return new Promise(function(t){function n(){m.document.getElementsByTagName("body")[0].removeChild(r)}function e(){var e=r.contentDocument;t({document:e,errors:i,cleanUp:n})}var r=function(e,t,n,r){t=e.createElement(t);return t.style.visibility="hidden",t.style.width=n+"px",t.style.height=r+"px",t.style.position="absolute",t.style.top=-1e4-r+"px",t.style.left=-1e4-n+"px",e.getElementsByTagName("body")[0].appendChild(t),t}(m.document,"iframe",l.width,l.height),o=s.outerHTML,i=[],c=l.executeJsTimeout||0,u=r.contentWindow.XMLHttpRequest,a=f.finishNotifyingXhr(u),u=f.baseUrlRespectingXhr(a,l.baseUrl);r.onload=function(){var t;(0<(t=c)?new Promise(function(e){setTimeout(e,t)}):Promise.resolve()).then(a.waitForRequestsToFinish).then(e)},r.contentDocument.open(),r.contentWindow.XMLHttpRequest=u,r.contentWindow.onerror=function(e){i.push({resourceType:"scriptExecution",msg:e})},r.contentDocument.write("<!DOCTYPE html>"),r.contentDocument.write(o),r.contentDocument.close()})};function s(e,t,n,r,o){var i,c,u,a=Math.max(e.scrollWidth,e.clientWidth),s=Math.max(e.scrollHeight,e.clientHeight),l=t?(i=(l=function(e,t){var n=e.querySelector(t);if(n)return n;if(e.ownerDocument.querySelector(t)===e)return e;throw{message:"Clipping selector not found"}}(e,t).getBoundingClientRect()).top,c=l.left,u=l.width,l.height):(c=i=0,u=a,s);return l={width:u,height:l},r=r,o=o,r={width:Math.max(l.width*o,n),height:Math.max(l.height*o,r)},e=m.getComputedStyle(e.ownerDocument.documentElement).fontSize,{left:c,top:i,width:r.width,height:r.height,viewportWidth:a,viewportHeight:s,rootFontSize:e}}e.calculateDocumentContentSize=function(c,u){return new Promise(function(n,r){var e,t,o=u.zoom||1,i=function(e,t,n){e=Math.floor(e/n),n=Math.floor(t/n);return function(e,t,n){e=e.createElement("iframe");return e.style.width=t+"px",e.style.height=n+"px",e.style.visibility="hidden",e.style.position="absolute",e.style.top=-1e4-n+"px",e.style.left=-1e4-t+"px",e.style.borderWidth=0,e.sandbox="allow-same-origin",e.scrolling="no",e}(m.document,e,n)}(u.width,u.height,o);m.document.getElementsByTagName("body")[0].appendChild(i),i.onload=function(){var e,t=i.contentDocument;try{e=s(function(e,t){e=e.tagName;return t.querySelector(e)}(c,t),u.clip,u.width,u.height,o),n(e)}catch(e){r(e)}finally{m.document.getElementsByTagName("body")[0].removeChild(i)}},i.contentDocument.open(),i.contentDocument.write("<!DOCTYPE html>"),i.contentDocument.write("html"===(t=(e=c).tagName.toLowerCase())||"body"===t?e.outerHTML:'<body style="margin: 0;">'+e.outerHTML+"</body>"),i.contentDocument.close()})},e.parseHtmlFragment=function(e){var t=m.document.implementation.createHTMLDocument("");t.documentElement.innerHTML=e;t=t.querySelector("body").firstChild;if(!t)throw"Invalid source";return t};e.parseHTML=function(e){var t=m.document.implementation.createHTMLDocument("");return t.documentElement.innerHTML=e,function(e,t){var n,r,o,i=/<html((?:\s+[^>]*)?)>/im.exec(t),t=m.document.implementation.createHTMLDocument("");if(i)for(i="<div"+i[1]+"></div>",t.documentElement.innerHTML=i,r=t.querySelector("div"),n=0;n<r.attributes.length;n++)o=r.attributes[n],e.documentElement.setAttribute(o.name,o.value)}(t,e),t};function n(e){try{return t.failOnParseError(e)}catch(e){throw{message:"Invalid source",originalError:e}}}e.validateXHTML=function(e){e=(new DOMParser).parseFromString(e,"application/xml");n(e)};function r(c,u){return new Promise(function(e,t){function n(e){t({message:"Unable to load page",originalError:e})}var r=new window.XMLHttpRequest,o=a.joinUrl(u.baseUrl,c),i=(i=o,"none"===(o=u.cache)||"repeated"===o?i+"?_="+(l=null===l||"repeated"!==o?Date.now():l):i);r.addEventListener("load",function(){200===r.status||0===r.status?e(r.responseXML):n(r.statusText)},!1),r.addEventListener("error",function(e){n(e)},!1);try{r.open("GET",i,!0),r.responseType="document",r.send(null)}catch(e){n(e)}})}var l=null;return e.loadDocument=function(e,t){return r(e,t).then(n)},e}(o,i,n,window),n=function(r){"use strict";function o(e,t){return t?URL.createObjectURL(new Blob([e],{type:"image/svg+xml"})):"data:image/svg+xml;charset=utf-8,"+encodeURIComponent(e)}function c(e){e instanceof Blob&&URL.revokeObjectURL(e)}function i(o){return new Promise(function(t,e){var n=document.createElement("canvas"),r=new Image;r.onload=function(){var e=n.getContext("2d");try{e.drawImage(r,0,0),n.toDataURL("image/png"),t(!0)}catch(e){t(!1)}},r.onerror=e,r.src=o})}function u(t){return(e=void 0===e?n():e).then(function(e){return o(t,e)})}var e,t={},a='<svg xmlns="http://www.w3.org/2000/svg" width="1" height="1"><foreignObject></foreignObject></svg>',n=function(){return new Promise(function(t,e){var n;(function(){if(r.Blob)try{return new Blob(["<b></b>"],{type:"text/xml"}),!0}catch(e){}return!1})()&&r.URL?(n=o(a,!0),i(n).then(function(e){return c(n),!e&&i(o(a,!1)).then(function(e){return e})},function(){return!1}).then(function(e){t(!e)},function(){e()})):t(!1)})};return t.renderSvg=function(i){return new Promise(function(e,t){function n(){r&&c(r)}var r,o=new Image;o.onload=function(){o.onload=null,o.onerror=null,n(),e(o)},o.onerror=function(){n(),t()},u(i).then(function(e){r=e,o.src=r},t)})},t}(window);return function(o,i,c){"use strict";var u={};u.drawDocument=function(){var e=arguments[0],t=Array.prototype.slice.call(arguments,1),n=o.parseOptionalParameters(t),r=e.documentElement||e;return c.rasterize(r,n.canvas,(e=(t=n).canvas,r=t.options,n=e?e.width:300,e=e?e.height:200,e={width:void 0!==r.width?r.width:n,height:void 0!==r.height?r.height:e},(t=o.clone(t.options)).width=e.width,t.height=e.height,t))};u.drawHTML=function(){var e=arguments[0],t=Array.prototype.slice.call(arguments,1),t=o.parseOptionalParameters(t);return function(e,t,n){e=i.parseHTML(e);return u.drawDocument(e,t,n)}(e,t.canvas,t.options)};function n(t,n,r){return i.loadDocument(t,r).then(function(e){e=function(e,t,n){var r=document.implementation.createHTMLDocument("");r.replaceChild(e.documentElement,r.documentElement);e=n?o.clone(n):{};return n.baseUrl||(e.baseUrl=t),{document:r,options:e}}(e,t,r);return u.drawDocument(e.document,n,e.options)})}return u.drawURL=function(){var e=arguments[0],t=Array.prototype.slice.call(arguments,1),t=o.parseOptionalParameters(t);return n(e,t.canvas,t.options)},u}(o,i,function(o,i,c,r,e,u){"use strict";function a(t){return e.renderSvg(t).then(function(e){return{image:e,svg:t}},function(e){throw l(e)})}function s(e,t,n){return r.drawDocumentAsSvg(e,n).then(a).then(function(e){return t&&function(e,t){try{t.getContext("2d").drawImage(e,0,0)}catch(e){throw l(e)}}(e.image,t),e})}var t={},l=function(e){return{message:"Error rendering page",originalError:e}};return t.rasterize=function(e,n,r){var t=o.clone(r);return t.inlineScripts=!0===r.executeJs,u.inlineReferences(e,t).then(function(t){return r.executeJs?i.executeJavascript(e,r).then(function(e){var t=e.document;return c.persistInputValues(t),{document:t,errors:e.errors,cleanUp:e.cleanUp}}).then(function(e){return{element:e.document.documentElement,errors:t.concat(e.errors),cleanUp:e.cleanUp}}):{element:e,errors:t,cleanUp:function(){}}}).then(function(t){return s(t.element,n,r).then(function(e){return t.cleanUp(),{image:e.image,svg:e.svg,errors:t.errors}})})},t}(o,i,e,function(c,r,u){"use strict";function a(t){var e=Object.keys(t);return e.length?" 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