@stimulus-library/mixins/dist/use_text_selection.js

A library of useful controllers for Stimulus

import { useEventListener } from "./use_event_listener";
export function useTextSelection(controller, handler) {
    handler = handler.bind(controller);
    const onSelectionChange = () => {
        const selection = window.getSelection();
        handler(selection);
    };
    const { teardown: unwatch } = useEventListener(controller, window.document, "selectionchange", onSelectionChange);
    const teardown = () => {
        unwatch();
    };
    return {
        teardown,
    };
}