mirror of
https://github.com/naturalcrit/homebrewery.git
synced 2026-03-27 14:38:11 +00:00
370 lines
12 KiB
JavaScript
370 lines
12 KiB
JavaScript
/*eslint max-lines: ["warn", {"max": 500, "skipBlankLines": true, "skipComments": true}]*/
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import './editor.less';
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import React from 'react';
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import createReactClass from 'create-react-class';
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import _ from 'lodash';
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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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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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const Editor = createReactClass({
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displayName : 'Editor',
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getDefaultProps : function() {
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return {
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brew : {
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text : '',
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style : ''
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},
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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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currentEditorCursorPageNum : 1,
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currentEditorViewPageNum : 1,
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currentBrewRendererPageNum : 1,
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};
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},
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getInitialState : function() {
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return {
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editorTheme : this.props.editorTheme,
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view : 'text', //'text', 'style', 'meta', 'snippet'
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snippetBarHeight : 26,
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};
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},
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editor : React.createRef(null),
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codeEditor : React.createRef(null),
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isText : function() {return this.state.view == 'text';},
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isStyle : function() {return this.state.view == 'style';},
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isMeta : function() {return this.state.view == 'meta';},
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isSnip : function() {return this.state.view == 'snippet';},
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componentDidMount : function() {
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document.getElementById('BrewRenderer').addEventListener('keydown', this.handleControlKeys);
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document.addEventListener('keydown', this.handleControlKeys);
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const editorTheme = window.localStorage.getItem(EDITOR_THEME_KEY);
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if(editorTheme) {
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this.setState({
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editorTheme : editorTheme
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});
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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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this.resizeObserver = new ResizeObserver((entries)=>{
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const height = document.querySelector('.editor > .snippetBar').offsetHeight;
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this.setState({ snippetBarHeight: height });
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});
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this.resizeObserver.observe(snippetBar);
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},
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componentDidUpdate : function(prevProps, prevState, snapshot) {
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if(prevProps.moveBrew !== this.props.moveBrew)
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this.brewJump();
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if(prevProps.moveSource !== this.props.moveSource)
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this.sourceJump();
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if(this.props.liveScroll) {
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if(prevProps.currentBrewRendererPageNum !== this.props.currentBrewRendererPageNum) {
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this.sourceJump(this.props.currentBrewRendererPageNum, false);
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} else if(prevProps.currentEditorViewPageNum !== this.props.currentEditorViewPageNum) {
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this.brewJump(this.props.currentEditorViewPageNum, false);
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} else if(prevProps.currentEditorCursorPageNum !== this.props.currentEditorCursorPageNum) {
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this.brewJump(this.props.currentEditorCursorPageNum, false);
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}
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}
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},
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componentWillUnmount() {
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if(this.resizeObserver) this.resizeObserver.disconnect();
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},
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handleControlKeys : function(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) this.brewJump();
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if(e.keyCode == LEFTARROW_KEY) this.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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updateCurrentCursorPage : function(lineNumber) {
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const lines = this.props.brew.text.split('\n').slice(0, lineNumber);
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const pageRegex = this.props.brew.renderer == 'V3' ? PAGEBREAK_REGEX_V3 : /\\page/;
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const currentPage = lines.reduce((count, line)=>count + (pageRegex.test(line) ? 1 : 0), 1);
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this.props.onCursorPageChange(currentPage);
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},
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updateCurrentViewPage : function(topLine) {
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const lines = this.props.brew.text.split('\n').slice(0, topLine);
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const pageRegex = this.props.brew.renderer == 'V3' ? PAGEBREAK_REGEX_V3 : /\\page/;
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const currentPage = lines.reduce((count, line)=>count + (pageRegex.test(line) ? 1 : 0), 1);
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this.props.onViewPageChange(currentPage);
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},
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handleInject : function(injectText){
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this.codeEditor.current?.injectText(injectText, false);
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},
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handleViewChange : function(newView){
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this.props.setMoveArrows(newView === 'text');
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this.setState({
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view : newView
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}, ()=>{
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this.codeEditor.current?.codeMirror?.focus();
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});
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},
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brewJump : function(targetPage=this.props.currentEditorCursorPageNum, smooth=true){
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if(!window || !this.isText() || isJumping)
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return;
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// Get current brewRenderer scroll position and calculate target position
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const brewRenderer = 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.getElementById(`p${targetPage}`).getBoundingClientRect().top;
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let scrollingTimeout;
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const checkIfScrollComplete = ()=>{ // Prevent interrupting a scroll in progress if user clicks multiple times
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clearTimeout(scrollingTimeout); // Reset the timer every time a scroll event occurs
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scrollingTimeout = setTimeout(()=>{
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isJumping = false;
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brewRenderer.removeEventListener('scroll', checkIfScrollComplete);
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}, 150); // If 150 ms pass without a brewRenderer scroll event, assume scrolling is done
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};
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isJumping = true;
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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; //Do a little bounce before scrolling
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const bounceDelay = 100;
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const scrollDelay = 500;
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if(!this.throttleBrewMove) {
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this.throttleBrewMove = _.throttle((currentPos, bouncePos, targetPos)=>{
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brewRenderer.scrollTo({ top: currentPos + bouncePos, behavior: 'smooth' });
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setTimeout(()=>{
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brewRenderer.scrollTo({ top: currentPos + targetPos, behavior: 'smooth', block: 'start' });
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}, bounceDelay);
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}, scrollDelay, { leading: true, trailing: false });
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};
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this.throttleBrewMove(currentPos, bouncePos, targetPos);
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} else {
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brewRenderer.scrollTo({ top: currentPos + targetPos, behavior: 'instant', block: 'start' });
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}
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},
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sourceJump : function(targetPage=this.props.currentBrewRendererPageNum, smooth=true){
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if(!this.isText() || isJumping)
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return;
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const textSplit = this.props.renderer == 'V3' ? PAGEBREAK_REGEX_V3 : /\\page/;
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const textString = this.props.brew.text.split(textSplit).slice(0, targetPage-1).join(textSplit);
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const targetLine = textString.match('\n') ? textString.split('\n').length : 1;
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const editor = this.codeEditor.current;
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let currentY = editor.getScrollTop();
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const targetY = editor.getLineTop(targetLine);
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let scrollingTimeout;
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const checkIfScrollComplete = ()=>{ // Prevent interrupting a scroll in progress if user clicks multiple times
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clearTimeout(scrollingTimeout); // Reset the timer every time a scroll event occurs
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scrollingTimeout = setTimeout(()=>{
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isJumping = false;
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}, 150); // If 150 ms pass without a scroll event, assume scrolling is done
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};
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isJumping = true;
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checkIfScrollComplete();
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if(smooth) {
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//Scroll 1/10 of the way every 10ms until 1px off.
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const incrementalScroll = setInterval(()=>{
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currentY += (targetY - currentY) / 10;
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editor.scrollToY(currentY);
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if(Math.abs(targetY - currentY) < 1) {
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editor.scrollToY(targetY);
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editor.setCursorToLine(targetLine);
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clearInterval(incrementalScroll);
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}
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}, 10);
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} else {
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editor.scrollToY(targetY);
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editor.setCursorToLine(targetLine);
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}
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},
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//Called when there are changes to the editor's dimensions
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update : function(){},
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updateEditorTheme : function(newTheme){
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window.localStorage.setItem(EDITOR_THEME_KEY, newTheme);
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this.setState({
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editorTheme : newTheme
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});
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},
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//Called by CodeEditor after document switch, so Snippetbar can refresh UndoHistory
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rerenderParent : function (){
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this.forceUpdate();
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},
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renderEditor : function(){
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if(this.isText()){
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return <>
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<CodeEditor key='codeEditor'
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ref={this.codeEditor}
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language='gfm'
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tab='brewText'
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view={this.state.view}
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value={this.props.brew.text}
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onChange={this.props.onBrewChange('text')}
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onCursorChange={(line)=>this.updateCurrentCursorPage(line)}
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onViewChange={(line)=>this.updateCurrentViewPage(line)}
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editorTheme={this.state.editorTheme}
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renderer={this.props.brew.renderer}
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rerenderParent={this.rerenderParent}
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style={{ height: `calc(100% - ${this.state.snippetBarHeight}px)` }} />
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</>;
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}
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if(this.isStyle()){
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return <>
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<CodeEditor key='codeEditor'
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ref={this.codeEditor}
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language='css'
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tab='brewStyles'
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view={this.state.view}
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value={this.props.brew.style ?? DEFAULT_STYLE_TEXT}
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onChange={this.props.onBrewChange('style')}
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enableFolding={true}
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editorTheme={this.state.editorTheme}
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renderer={this.props.brew.renderer}
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rerenderParent={this.rerenderParent}
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style={{ height: `calc(100% - ${this.state.snippetBarHeight}px)` }} />
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</>;
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}
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if(this.isMeta()){
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return <>
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<CodeEditor key='codeEditor'
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view={this.state.view}
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style={{ display: 'none' }}
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rerenderParent={this.rerenderParent} />
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<MetadataEditor
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metadata={this.props.brew}
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themeBundle={this.props.themeBundle}
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onChange={this.props.onBrewChange('metadata')}
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reportError={this.props.reportError}
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userThemes={this.props.userThemes}/>
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</>;
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}
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if(this.isSnip()){
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if(!this.props.brew.snippets) { this.props.brew.snippets = DEFAULT_SNIPPET_TEXT; }
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return <>
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<CodeEditor key='codeEditor'
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ref={this.codeEditor}
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language='gfm'
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tab='brewSnippets'
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view={this.state.view}
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value={this.props.brew.snippets}
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onChange={this.props.onBrewChange('snippets')}
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enableFolding={true}
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editorTheme={this.state.editorTheme}
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renderer={this.props.brew.renderer}
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rerenderParent={this.rerenderParent}
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style={{ height: `calc(100% -${this.state.snippetBarHeight}px)` }} />
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</>;
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}
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},
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redo : function(){
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return this.codeEditor.current?.redo();
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},
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historySize : function(){
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return this.codeEditor.current?.historySize();
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},
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undo : function(){
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return this.codeEditor.current?.undo();
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},
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foldCode : function(){
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return this.codeEditor.current?.foldAllCode();
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},
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unfoldCode : function(){
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return this.codeEditor.current?.unfoldAllCode();
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},
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render : function(){
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return (
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<div className='editor' ref={this.editor}>
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<SnippetBar
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brew={this.props.brew}
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view={this.state.view}
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onViewChange={this.handleViewChange}
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onInject={this.handleInject}
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showEditButtons={this.props.showEditButtons}
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renderer={this.props.renderer}
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theme={this.props.brew.theme}
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undo={this.undo}
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redo={this.redo}
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foldCode={this.foldCode}
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unfoldCode={this.unfoldCode}
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historySize={this.historySize()}
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currentEditorTheme={this.state.editorTheme}
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updateEditorTheme={this.updateEditorTheme}
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themeBundle={this.props.themeBundle}
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cursorPos={this.codeEditor.current?.getCursorPosition() || {}}
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updateBrew={this.props.updateBrew}
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/>
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{this.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; |