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4bb582bdd8
* Improve Tab behaviour in read-only mode * Remove Tab shortcuts from Markdown configuration GitOrigin-RevId: 9eb804fcf820b37b371b1c351cfbdf7bff1ced89
50 lines
1.4 KiB
TypeScript
50 lines
1.4 KiB
TypeScript
import { EditorSelection } from '@codemirror/state'
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import { getIndentUnit, indentString, indentUnit } from '@codemirror/language'
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import { EditorView } from '@codemirror/view'
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export const indentMore = (view: EditorView) => {
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if (view.state.readOnly) {
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return false
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}
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view.dispatch(
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view.state.changeByRange(range => {
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const doc = view.state.doc
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const changes = []
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if (range.empty) {
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// insert space(s) at the cursor
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const line = doc.lineAt(range.from)
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const unit = getIndentUnit(view.state)
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const offset = range.from - line.from
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const cols = unit - (offset % unit)
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const insert = indentString(view.state, cols)
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changes.push({ from: range.from, insert })
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} else {
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// indent selected lines
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const insert = view.state.facet(indentUnit)
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let previousLineNumber = -1
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for (let pos = range.from; pos <= range.to; pos++) {
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const line = doc.lineAt(pos)
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if (previousLineNumber === line.number) {
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continue
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}
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changes.push({ from: line.from, insert })
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previousLineNumber = line.number
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}
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}
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const changeSet = view.state.changes(changes)
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return {
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changes: changeSet,
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range: EditorSelection.range(
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changeSet.mapPos(range.anchor, 1),
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changeSet.mapPos(range.head, 1)
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),
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}
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})
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)
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return true
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}
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