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custom folding finally

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This commit is contained in:
Víctor Losada Hernández
2026-03-26 12:42:26 +01:00
parent b45795fac2
commit ad50be45c6
1 changed files with 47 additions and 23 deletions
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70
client/components/codeEditor/codeEditor.jsx
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@@ -100,23 +100,8 @@ const customHighlightPlugin = ViewPlugin.fromClass(
// ######################### FOLDING ###############################
import { foldService } from '@codemirror/language';
class FoldPreviewWidget extends WidgetType {
constructor(text) {
super();
this.text = text;
}
toDOM() {
console.log(this.text);
const span = document.createElement('span');
span.className = 'cm-fold-placeholder';
span.textContent = this.text;
return span;
}
}
const homebreweryFold = foldService.of((state, lineStart)=>{
const doc = state.doc;
const matcher = /^(?=\\page(?:break)?(?: *{[^\n{}]*})?$)/m;
@@ -133,24 +118,58 @@ const homebreweryFold = foldService.of((state, lineStart)=>{
if(endLine === startLine.number) return null;
const widgetObject = { from: startLine.from, to: doc.line(endLine).to };
console.log(widgetObject);
return widgetObject;
});
import { codeFolding } from '@codemirror/language';
function getFoldPreview(state, from, to) {
const doc = state.doc;
const startLine = doc.lineAt(from).number;
const endLine = doc.lineAt(to).number;
// If the current line has text, do not generate a preview
if (doc.line(startLine).text.trim().length > 0) {
return `↤ Lines ${startLine}-${endLine} ↦`;
}
let preview = '';
for (let i = startLine.number; i <= endLine; i++) {
for (let i = startLine + 1; i <= endLine; i++) {
const text = doc.line(i).text.trim();
if(text.length > 0) {
if (text.length > 0) {
preview = text;
break;
}
}
if(!preview) preview = `Lines ${startLine.number}-${endLine}`;
if (!preview) preview = `Lines ${startLine}-${endLine}`;
preview = preview.replace('{', '').trim();
if(preview.length > 50) preview = `${preview.slice(0, 50)}...`;
preview = `↤ ${preview} ↦`;
if (preview.length > 50) preview = `${preview.slice(0, 50)}...`;
return { from: startLine.from, to: doc.line(endLine).to, placeholder: new FoldPreviewWidget(preview) };
return `↤ ${preview} ↦`;
}
const hbFolding = codeFolding({
preparePlaceholder : (state, range)=>{
return getFoldPreview(state, range.from, range.to);
},
placeholderDOM(view, onclick, prepared) {
const span = document.createElement('span');
span.className = 'cm-fold-placeholder';
span.textContent = prepared;
span.onclick = onclick;
span.style.color = '#989898';
return span;
}
});
// ######################### COMPONENT #############################
const CodeEditor = forwardRef(
@@ -225,11 +244,16 @@ const CodeEditor = forwardRef(
languageExtension,
highlightActiveLine(),
highlightActiveLineGutter(),
keymap.of(foldKeymap),
foldGutter(),
lineNumbers(),
homebreweryFold,
hbFolding,
keymap.of(foldKeymap),
foldGutter({
openText : '▾',
closedText : '▸'
}),
themeCompartment.of(themeExtension), // 👈 key line
syntaxHighlighting(highlightStyle),