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35 lines
958 B
TypeScript
35 lines
958 B
TypeScript
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import { SelectionRange, StateEffect } from '@codemirror/state'
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import { ViewPlugin } from '@codemirror/view'
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export const textSelectedEffect = StateEffect.define<SelectionRange>()
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export const textSelected = ViewPlugin.define(view => {
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function mouseUpListener() {
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if (!view.state.selection.main.empty) {
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view.dispatch({
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effects: textSelectedEffect.of(view.state.selection.main),
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})
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}
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}
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function keyUpListener(event: KeyboardEvent) {
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if (
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(event.shiftKey || event.key === 'Meta') &&
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!view.state.selection.main.empty
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) {
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view.dispatch({
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effects: textSelectedEffect.of(view.state.selection.main),
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})
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}
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}
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view.dom.addEventListener('mouseup', mouseUpListener)
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view.dom.addEventListener('keyup', keyUpListener)
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return {
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destroy() {
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view.dom.removeEventListener('mouseup', mouseUpListener)
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view.dom.removeEventListener('keyup', keyUpListener)
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},
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}
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})
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