mirror of
https://github.com/naturalcrit/homebrewery.git
synced 2025-12-24 20:42:43 +00:00
233 lines
7.0 KiB
JavaScript
233 lines
7.0 KiB
JavaScript
/*eslint max-lines: ["warn", {"max": 300, "skipBlankLines": true, "skipComments": true}]*/
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require('./brewRenderer.less');
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const React = require('react');
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const { useState, useRef, useEffect } = React;
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const _ = require('lodash');
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const MarkdownLegacy = require('naturalcrit/markdownLegacy.js');
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const Markdown = require('naturalcrit/markdown.js');
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const ErrorBar = require('./errorBar/errorBar.jsx');
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//TODO: move to the brew renderer
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const RenderWarnings = require('homebrewery/renderWarnings/renderWarnings.jsx');
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const NotificationPopup = require('./notificationPopup/notificationPopup.jsx');
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const Frame = require('react-frame-component').default;
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const dedent = require('dedent-tabs').default;
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const Themes = require('themes/themes.json');
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const PAGE_HEIGHT = 1056;
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const INITIAL_CONTENT = dedent`
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<!DOCTYPE html><html><head>
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<link href="//use.fontawesome.com/releases/v5.15.1/css/all.css" rel="stylesheet" />
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<link href="//fonts.googleapis.com/css?family=Open+Sans:400,300,600,700" rel="stylesheet" type="text/css" />
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<link href='/homebrew/bundle.css' rel='stylesheet' />
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<base target=_blank>
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</head><body style='overflow: hidden'><div></div></body></html>`;
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//v=====----------------------< Brew Page Component >---------------------=====v//
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const BrewPage = (props)=>{
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props = {
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contents : '',
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index : 0,
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...props
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};
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return <div className={props.className} id={`p${props.index + 1}`} >
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<div className='columnWrapper' dangerouslySetInnerHTML={{ __html: props.contents }} />
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</div>;
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};
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//v=====--------------------< Brew Renderer Component >-------------------=====v//
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const renderedPages = [];
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let rawPages = [];
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const BrewRenderer = (props)=>{
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props = {
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text : '',
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style : '',
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renderer : 'legacy',
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theme : '5ePHB',
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lang : '',
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errors : [],
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currentEditorPage : 0,
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...props
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};
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const [state, setState] = useState({
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viewablePageNumber : 0,
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height : PAGE_HEIGHT,
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isMounted : false,
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visibility : 'hidden',
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});
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const mainRef = useRef(null);
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if(props.renderer == 'legacy') {
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rawPages = props.text.split('\\page');
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} else {
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rawPages = props.text.split(/^\\page$/gm);
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}
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useEffect(()=>{ // Unmounting steps
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return ()=>{window.removeEventListener('resize', updateSize);};
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}, []);
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const updateSize = ()=>{
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setState((prevState)=>({
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...prevState,
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height : mainRef.current.parentNode.clientHeight,
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}));
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};
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const handleScroll = (e)=>{
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const target = e.target;
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setState((prevState)=>({
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...prevState,
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viewablePageNumber : Math.floor(target.scrollTop / target.scrollHeight * rawPages.length)
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}));
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};
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const shouldRender = (index)=>{
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if(!state.isMounted) return false;
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if(Math.abs(index - state.viewablePageNumber) <= 3)
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return true;
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if(index + 1 == props.currentEditorPage)
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return true;
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return false;
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};
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const sanitizeScriptTags = (content)=>{
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return content
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.replace(/<script/ig, '<script')
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.replace(/<\/script>/ig, '</script>');
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};
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const renderPageInfo = ()=>{
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return <div className='pageInfo' ref={mainRef}>
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<div>
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{props.renderer}
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</div>
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<div>
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{state.viewablePageNumber + 1} / {rawPages.length}
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</div>
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</div>;
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};
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const renderDummyPage = (index)=>{
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return <div className='phb page' id={`p${index + 1}`} key={index}>
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<i className='fas fa-spinner fa-spin' />
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</div>;
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};
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const renderStyle = ()=>{
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if(!props.style) return;
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const cleanStyle = sanitizeScriptTags(props.style);
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//return <div style={{ display: 'none' }} dangerouslySetInnerHTML={{ __html: `<style>@layer styleTab {\n${sanitizeScriptTags(props.style)}\n} </style>` }} />;
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return <div style={{ display: 'none' }} dangerouslySetInnerHTML={{ __html: `<style> ${cleanStyle} </style>` }} />;
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};
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const renderPage = (pageText, index)=>{
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let cleanPageText = sanitizeScriptTags(pageText);
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if(props.renderer == 'legacy') {
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const html = MarkdownLegacy.render(cleanPageText);
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return <BrewPage className='page phb' index={index} key={index} contents={html} />;
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} else {
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cleanPageText += `\n\n \n\\column\n `; //Artificial column break at page end to emulate column-fill:auto (until `wide` is used, when column-fill:balance will reappear)
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const html = Markdown.render(cleanPageText);
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return <BrewPage className='page' index={index} key={index} contents={html} />;
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}
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};
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const renderPages = ()=>{
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if(props.errors && props.errors.length)
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return renderedPages;
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if(rawPages.length != renderedPages.length) // Re-render all pages when page count changes
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renderedPages.length = 0;
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_.forEach(rawPages, (page, index)=>{
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if((shouldRender(index) || !renderedPages[index]) && typeof window !== 'undefined'){
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renderedPages[index] = renderPage(page, index); // Render any page not yet rendered, but only re-render those in PPR range
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}
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});
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return renderedPages;
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};
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const frameDidMount = ()=>{ //This triggers when iFrame finishes internal "componentDidMount"
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setTimeout(()=>{ //We still see a flicker where the style isn't applied yet, so wait 100ms before showing iFrame
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updateSize();
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window.addEventListener('resize', updateSize);
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renderPages(); //Make sure page is renderable before showing
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setState((prevState)=>({
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...prevState,
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isMounted : true,
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visibility : 'visible'
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}));
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}, 100);
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};
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const emitClick = ()=>{ // Allow clicks inside iFrame to interact with dropdowns, etc. from outside
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if(!window || !document) return;
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document.dispatchEvent(new MouseEvent('click'));
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};
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const rendererPath = props.renderer == 'V3' ? 'V3' : 'Legacy';
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const themePath = props.theme ?? '5ePHB';
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const baseThemePath = Themes[rendererPath][themePath].baseTheme;
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return (
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<>
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{/*render dummy page while iFrame is mounting.*/}
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{!state.isMounted
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? <div className='brewRenderer' onScroll={handleScroll}>
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<div className='pages'>
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{renderDummyPage(1)}
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</div>
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</div>
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: null}
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{/*render in iFrame so broken code doesn't crash the site.*/}
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<Frame id='BrewRenderer' initialContent={INITIAL_CONTENT}
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style={{ width: '100%', height: '100%', visibility: state.visibility }}
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contentDidMount={frameDidMount}
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onClick={()=>{emitClick();}}
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>
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<div className={'brewRenderer'}
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onScroll={handleScroll}
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style={{ height: state.height }}>
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<ErrorBar errors={props.errors} />
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<div className='popups'>
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<RenderWarnings />
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<NotificationPopup />
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</div>
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<link href={`/themes/${rendererPath}/Blank/style.css`} rel='stylesheet'/>
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{baseThemePath &&
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<link href={`/themes/${rendererPath}/${baseThemePath}/style.css`} rel='stylesheet'/>
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}
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<link href={`/themes/${rendererPath}/${themePath}/style.css`} rel='stylesheet'/>
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{/* Apply CSS from Style tab and render pages from Markdown tab */}
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{state.isMounted
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&&
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<>
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{renderStyle()}
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<div className='pages' lang={`${props.lang || 'en'}`}>
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{renderPages()}
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</div>
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</>
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}
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</div>
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</Frame>
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{renderPageInfo()}
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</>
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);
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};
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module.exports = BrewRenderer;
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