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| 1 | +import React, { useRef, useEffect, useState } from 'react'; |
| 2 | + |
| 3 | +import { basicSetup } from 'codemirror'; |
| 4 | +import { EditorState, Compartment } from '@codemirror/state'; |
| 5 | +import { EditorView, keymap, lineNumbers, placeholder, Decoration, ViewPlugin, MatchDecorator } from '@codemirror/view'; |
| 6 | +import { indentWithTab, history } from '@codemirror/commands'; |
| 7 | +//import { json } from '@codemirror/lang-json'; |
| 8 | +import { defaultKeymap } from '@codemirror/commands'; |
| 9 | +import { syntaxHighlighting, defaultHighlightStyle, HighlightStyle, StreamLanguage } from '@codemirror/language'; |
| 10 | +import { autocompletion, CompletionContext } from '@codemirror/autocomplete'; |
| 11 | +import { tags, styleTags } from '@lezer/highlight'; |
| 12 | + |
| 13 | +// Define the autocomplete function |
| 14 | +const myCompletions = (context) => { |
| 15 | + let word = context.matchBefore(/{{\w*$/); |
| 16 | + if (!word) return null; |
| 17 | + |
| 18 | + return { |
| 19 | + from: word.from, |
| 20 | + options: [ |
| 21 | + { label: '{{example1}}', type: 'keyword' }, |
| 22 | + { label: '{{example2}}', type: 'variable' }, |
| 23 | + { label: '{{example3}}', type: 'text' }, |
| 24 | + ], |
| 25 | + }; |
| 26 | +}; |
| 27 | + |
| 28 | +// Configure the autocomplete extension |
| 29 | +const myAutocomplete = autocompletion({ |
| 30 | + override: [myCompletions], |
| 31 | + activateOnTyping: true, |
| 32 | +}); |
| 33 | + |
| 34 | +// Custom styles to hide scrollbar |
| 35 | +const hideScrollbar = EditorView.theme({ |
| 36 | + '.cm-scroller': { |
| 37 | + overflowX: 'auto', |
| 38 | + overflowY: 'hidden', |
| 39 | + whiteSpace: 'nowrap', |
| 40 | + scrollbarWidth: 'none' /* For Firefox */, |
| 41 | + }, |
| 42 | + '.cm-content': { |
| 43 | + padding: '0', // Adjust padding to fit your needs |
| 44 | + overflow: 'auto', |
| 45 | + }, |
| 46 | + '.cm-scroller::-webkit-scrollbar': { |
| 47 | + display: 'none' /* For Chrome, Safari, and Opera */, |
| 48 | + }, |
| 49 | + '.cm-line': { |
| 50 | + padding: '0', // Adjust padding to fit your needs |
| 51 | + }, |
| 52 | + '&': { |
| 53 | + height: 'auto', // Adjust height to auto for single-line input |
| 54 | + }, |
| 55 | + '.cm-placeholder': { |
| 56 | + color: '#aaa', // Placeholder text color |
| 57 | + }, |
| 58 | +}); |
| 59 | + |
| 60 | +// Rebind the Enter key to do nothing |
| 61 | +const rebindEnterKey = keymap.of([ |
| 62 | + { |
| 63 | + key: 'Enter', |
| 64 | + run: () => true, // Return true to prevent the default action |
| 65 | + }, |
| 66 | +]); |
| 67 | + |
| 68 | +// Create a MatchDecorator to highlight {{text}} strings |
| 69 | +const decorator = new MatchDecorator({ |
| 70 | + // Regular expression to match {{text}} strings |
| 71 | + regexp: /{{[^}]*}}/g, |
| 72 | + decoration: Decoration.mark({ class: 'highlight' }), |
| 73 | +}); |
| 74 | + |
| 75 | +// View plugin to apply the MatchDecorator |
| 76 | +const highlightPlugin = ViewPlugin.fromClass( |
| 77 | + class { |
| 78 | + constructor(view) { |
| 79 | + this.decorations = decorator.createDeco(view); |
| 80 | + } |
| 81 | + update(update) { |
| 82 | + this.decorations = decorator.updateDeco(update, this.decorations); |
| 83 | + } |
| 84 | + }, |
| 85 | + { |
| 86 | + decorations: (v) => v.decorations, |
| 87 | + }, |
| 88 | +); |
| 89 | + |
| 90 | +// Custom styles for highlighting |
| 91 | +const highlightStyle = EditorView.baseTheme({ |
| 92 | + '.highlight': { |
| 93 | + color: 'brown', |
| 94 | + }, |
| 95 | +}); |
| 96 | + |
| 97 | +export const TextEditor = ({ id, placeHolder, onChangeHandler, name, value, disableState }) => { |
| 98 | + const editor1 = useRef(); |
| 99 | + const [view, setView] = useState(null); |
| 100 | + |
| 101 | + if (view) { |
| 102 | + if (value != view.state.doc.toString()) { |
| 103 | + view.dispatch({ changes: { from: 0, to: view.state.doc.length, insert: value } }); |
| 104 | + } |
| 105 | + } |
| 106 | + |
| 107 | + const onUpdate = EditorView.updateListener.of((v) => { |
| 108 | + if (onChangeHandler) { |
| 109 | + onChangeHandler(v.state.doc.toString()); |
| 110 | + } |
| 111 | + }); |
| 112 | + |
| 113 | + useEffect(() => { |
| 114 | + const state = EditorState.create({ |
| 115 | + doc: value, |
| 116 | + extensions: [ |
| 117 | + //EditorView.lineWrapping, |
| 118 | + placeholder(placeHolder), |
| 119 | + myAutocomplete, |
| 120 | + //basicSetup, |
| 121 | + keymap.of([defaultKeymap, indentWithTab]), |
| 122 | + onUpdate, |
| 123 | + //EditorState.readOnly.of(props.readOnly || false), |
| 124 | + history(), |
| 125 | + hideScrollbar, |
| 126 | + rebindEnterKey, |
| 127 | + highlightPlugin, |
| 128 | + highlightStyle, |
| 129 | + ], |
| 130 | + }); |
| 131 | + |
| 132 | + const view = new EditorView({ state, parent: editor1.current }); |
| 133 | + setView(view); |
| 134 | + |
| 135 | + return () => { |
| 136 | + view.destroy(); |
| 137 | + setView(null); |
| 138 | + }; |
| 139 | + }, []); |
| 140 | + |
| 141 | + const mainStyles = |
| 142 | + 'nodrag nowheel block w-3/4 rounded border border-slate-700 bg-background-light p-2.5 text-sm outline-none'; |
| 143 | + const intentStyles = disableState ? 'cursor-not-allowed text-slate-400' : 'text-slate-900'; |
| 144 | + |
| 145 | + return <div ref={editor1} className={`${mainStyles} ${intentStyles}`}></div>; |
| 146 | +}; |
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