mirror of
https://github.com/naturalcrit/homebrewery.git
synced 2026-09-20 16:42:58 +00:00
395 lines
10 KiB
React
395 lines
10 KiB
React
/*eslint max-lines: ["warn", {"max": 500, "skipBlankLines": true, "skipComments": true}]*/
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import './editor.less';
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import React, { useState, useRef, useEffect, forwardRef, useImperativeHandle } from 'react';
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import dedent from 'dedent';
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import CodeEditor from '@components/codeEditor/codeEditor.jsx';
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import SnippetBar from './snippetbar/snippetbar.jsx';
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import MetadataEditor from './metadataEditor/metadataEditor.jsx';
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const EDITOR_THEME_KEY = 'HB_editor_theme';
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import defaultCM5Theme from '@themes/codeMirror/default.js';
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import darkbrewery from '@themes/codeMirror/darkbrewery.js';
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import cm5Themes from 'codemirror-5-themes';
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const themes = { default: defaultCM5Theme, ...cm5Themes, darkbrewery };
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const EditorThemes = Object.entries(themes)
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.filter(([name, value])=>Array.isArray(value) && !name.endsWith('Init') && !name.endsWith('Style'))
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.map(([name])=>name);
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//const PAGEBREAK_REGEX_V3 = /^(?=\\page(?:break)?(?: *{[^\n{}]*})?$)/m;
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//const SNIPPETBREAK_REGEX_V3 = /^\\snippet\ .*$/;
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const DEFAULT_STYLE_TEXT = dedent`
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/*=======--- Example CSS styling ---=======*/
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/* Any CSS here will apply to your document! */
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.myExampleClass {
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color: black;
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}`;
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const DEFAULT_SNIPPET_TEXT = dedent`
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\snippet example snippet
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The text between \`\snippet title\` lines will become a snippet of name \`title\` as this example provides.
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This snippet is accessible in the brew tab, and will be inherited if the brew is used as a theme.
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`;
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let isJumping = false;
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let jumpSource = null;
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const Editor = forwardRef(
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(
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{
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brew = {},
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onBrewChange = ()=>{},
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reportError = ()=>{},
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onCursorPageChange = ()=>{},
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onViewPageChange = ()=>{},
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editorTheme = 'default',
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renderer = 'legacy',
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moveBrew,
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moveSource,
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liveScroll,
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setMoveArrows,
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updateBrew,
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showEditButtons,
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themeBundle,
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userThemes,
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currentEditorCursorPageNum = 1,
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currentEditorViewPageNum = 1,
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currentBrewRendererPageNum = 1,
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},
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ref,
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)=>{
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const [currentEditorTheme, setEditorTheme] = useState(editorTheme);
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const [view, setView] = useState('text'); // 'text', 'style', 'meta', 'snippet'
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const [snippetBarHeight, setSnippetBarHeight] = useState(26);
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const editor = useRef(null);
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const codeEditor = useRef(null);
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const throttleBrewMove = useRef(null);
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const isText = ()=>isView('text');
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const isStyle = ()=>isView('style');
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const isMeta = ()=>isView('meta');
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const isSnip = ()=>isView('snippet');
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const isView = (name)=>view === name;
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//componentDidMount equivalent
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useEffect(()=>{
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const brewRenderer = document.getElementById('BrewRenderer');
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brewRenderer.onload = ()=>brewRenderer.contentDocument?.addEventListener('keydown', handleControlKeys);
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document.addEventListener('keydown', handleControlKeys);
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const editorTheme = window.localStorage.getItem(EDITOR_THEME_KEY);
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if(editorTheme && EditorThemes.includes(editorTheme)) {
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setEditorTheme(editorTheme);
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} else {
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setEditorTheme('default');
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}
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const snippetBar = document.querySelector('.editor > .snippetBar');
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if(!snippetBar) return;
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const resizeObserver = new ResizeObserver((entries)=>{
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const height = document.querySelector('.editor > .snippetBar').offsetHeight;
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setSnippetBarHeight(height);
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});
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resizeObserver.observe(snippetBar);
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//ComponentWillUnmount equivalent
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return ()=>{
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if(resizeObserver) resizeObserver.disconnect();
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};
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}, []);
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const previousProps = useRef({
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moveBrew,
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moveSource,
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currentBrewRendererPageNum,
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currentEditorViewPageNum,
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currentEditorCursorPageNum,
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});
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//componentDidUpdate Equivalent
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useEffect(()=>{
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const prev = previousProps.current;
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if(prev.moveBrew !== moveBrew) {
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brewJump();
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}
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if(prev.moveSource !== moveSource) {
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sourceJump();
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}
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if(liveScroll) {
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if(prev.currentBrewRendererPageNum !== currentBrewRendererPageNum) {
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sourceJump(currentBrewRendererPageNum, false);
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} else if(prev.currentEditorViewPageNum !== currentEditorViewPageNum) {
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brewJump(currentEditorViewPageNum, false);
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} else if(prev.currentEditorCursorPageNum !== currentEditorCursorPageNum) {
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brewJump(currentEditorCursorPageNum, false);
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}
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}
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previousProps.current = {
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moveBrew,
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moveSource,
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currentBrewRendererPageNum,
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currentEditorViewPageNum,
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currentEditorCursorPageNum,
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};
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}, [
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moveBrew,
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moveSource,
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liveScroll,
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currentBrewRendererPageNum,
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currentEditorViewPageNum,
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currentEditorCursorPageNum,
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]);
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const handleControlKeys = (e)=>{
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if(!(e.ctrlKey && e.metaKey && e.shiftKey)) return;
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const LEFTARROW_KEY = 37;
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const RIGHTARROW_KEY = 39;
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if(e.keyCode == RIGHTARROW_KEY) brewJump();
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if(e.keyCode == LEFTARROW_KEY) sourceJump();
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if(e.keyCode == LEFTARROW_KEY || e.keyCode == RIGHTARROW_KEY) {
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e.stopPropagation();
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e.preventDefault();
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}
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};
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const updateCurrentCursorPage = (pageNumber)=>{
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onCursorPageChange(pageNumber);
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};
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const updateCurrentViewPage = (pageNumber)=>{
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onViewPageChange(pageNumber);
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};
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const handleInject = (injectText)=>{
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codeEditor.current?.injectText(injectText);
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};
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const handleViewChange = (newView)=>{
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setMoveArrows(newView === 'text');
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setView(newView);
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};
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useEffect(()=>{
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codeEditor.current?.focus();
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}, [view]);
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const brewJump = (targetPage = currentEditorCursorPageNum, smooth = true)=>{
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if(!window || !isText() || isJumping || jumpSource === 'source') return;
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const brewRenderer =
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window.frames['BrewRenderer'].contentDocument.getElementsByClassName('brewRenderer')[0];
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const currentPos = brewRenderer.scrollTop;
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const targetPos = window.frames['BrewRenderer'].contentDocument
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.getElementById(`p${targetPage}`)
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.getBoundingClientRect().top;
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let scrollingTimeout;
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const checkIfScrollComplete = ()=>{
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clearTimeout(scrollingTimeout);
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scrollingTimeout = setTimeout(()=>{
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isJumping = false;
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jumpSource = null;
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brewRenderer.removeEventListener('scroll', checkIfScrollComplete);
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}, 150);
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};
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isJumping = true;
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jumpSource = 'brew';
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checkIfScrollComplete();
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brewRenderer.addEventListener('scroll', checkIfScrollComplete);
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if(smooth) {
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const bouncePos = targetPos >= 0 ? -30 : 30;
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const bounceDelay = 100;
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const scrollDelay = 500;
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if(!throttleBrewMove.current) {
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throttleBrewMove.current = _.throttle(
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(currentPos, bouncePos, targetPos)=>{
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brewRenderer.scrollTo({
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top : currentPos + bouncePos,
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behavior : 'smooth',
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});
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setTimeout(()=>{
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brewRenderer.scrollTo({
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top : currentPos + targetPos,
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behavior : 'smooth',
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block : 'start',
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});
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}, bounceDelay);
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},
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scrollDelay,
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{
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leading : true,
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trailing : false,
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},
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);
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}
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throttleBrewMove.current(currentPos, bouncePos, targetPos);
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} else {
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brewRenderer.scrollTo({
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top : currentPos + targetPos,
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behavior : 'instant',
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block : 'start',
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});
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}
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};
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const sourceJump = (targetPage = currentBrewRendererPageNum, smooth = true)=>{
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if(!isText() || isJumping || jumpSource === 'brew') return;
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const editor = codeEditor.current;
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if(!editor) return;
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jumpSource = 'source';
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editor.scrollToPage(targetPage);
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setTimeout(()=>{
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jumpSource = null;
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}, 200);
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};
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const updateEditorTheme = (newTheme)=>{
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window.localStorage.setItem(EDITOR_THEME_KEY, newTheme);
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setEditorTheme(newTheme);
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};
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const renderEditor = ()=>{
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if(isText()) {
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return (
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<>
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<CodeEditor
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key='codeEditor'
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ref={codeEditor}
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language='gfm'
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tab='brewText'
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view={view}
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value={brew.text}
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onChange={onBrewChange('text')}
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onCursorChange={(page)=>updateCurrentCursorPage(page)}
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onViewChange={(page)=>updateCurrentViewPage(page)}
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editorTheme={currentEditorTheme}
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renderer={brew.renderer}
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style={{ height: `calc(100% - ${snippetBarHeight}px)` }}
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/>
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</>
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);
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}
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if(isStyle()) {
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return (
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<>
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<CodeEditor
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key='codeEditor'
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ref={codeEditor}
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language='css'
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tab='brewStyles'
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view={view}
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value={brew.style ?? DEFAULT_STYLE_TEXT}
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onChange={onBrewChange('style')}
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editorTheme={currentEditorTheme}
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renderer={brew.renderer}
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style={{ height: `calc(100% - ${snippetBarHeight}px)` }}
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/>
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</>
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);
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}
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if(isMeta()) {
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return (
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<>
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<CodeEditor key='codeEditor' view={view} style={{ display: 'none' }} />
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<MetadataEditor
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metadata={brew}
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themeBundle={themeBundle}
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onChange={onBrewChange('metadata')}
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reportError={reportError}
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userThemes={userThemes}
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/>
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</>
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);
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}
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if(isSnip()) {
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if(!brew.snippets) {
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brew.snippets = DEFAULT_SNIPPET_TEXT;
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}
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return (
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<>
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<CodeEditor
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key='codeEditor'
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ref={codeEditor}
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language='gfm'
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tab='brewSnippets'
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view={view}
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value={brew.snippets}
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onChange={onBrewChange('snippets')}
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enableFolding={true}
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editorTheme={currentEditorTheme}
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renderer={brew.renderer}
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style={{ height: `calc(100% - 25px)` }}
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/>
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</>
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);
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}
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};
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useImperativeHandle(ref, ()=>({
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update : ()=>{},
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undo : ()=>codeEditor.current?.undo(),
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redo : ()=>codeEditor.current?.redo(),
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foldCode : ()=>codeEditor.current?.foldAll(),
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unfoldCode : ()=>codeEditor.current?.unfoldAll(),
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historySize : ()=>codeEditor.current?.historySize(),
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}));
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return (
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<div className='editor' ref={editor}>
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<SnippetBar
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brew={brew}
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view={view}
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onViewChange={handleViewChange}
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onInject={handleInject}
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showEditButtons={showEditButtons}
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renderer={renderer}
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theme={brew.theme}
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undo={undo}
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redo={redo}
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foldCode={foldCode}
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unfoldCode={unfoldCode}
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historySize={historySize()}
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currentEditorTheme={currentEditorTheme}
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updateEditorTheme={updateEditorTheme}
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themeBundle={themeBundle}
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cursorPos={codeEditor.current?.getCursorPosition() || {}}
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updateBrew={updateBrew}
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/>
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{renderEditor()}
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</div>
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);
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},
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);
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export default Editor;
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