matrix-react-sdk/lib/components/views/rooms/wysiwyg_composer/hooks/useComposerFunctions.js

SDK for matrix.org using React

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useComposerFunctions = useComposerFunctions;
var _react = require("react");
var _selection = require("../utils/selection");
/*
Copyright 2024 New Vector Ltd.
Copyright 2022 The Matrix.org Foundation C.I.C.

SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
Please see LICENSE files in the repository root for full details.
*/

function useComposerFunctions(ref, setContent) {
  return (0, _react.useMemo)(() => ({
    clear: () => {
      if (ref.current) {
        ref.current.innerHTML = "";
      }
    },
    insertText: text => {
      const selection = document.getSelection();
      if (ref.current && selection) {
        const content = ref.current.innerHTML;
        const {
          anchorOffset,
          focusOffset
        } = selection;
        ref.current.innerHTML = `${content.slice(0, anchorOffset)}${text}${content.slice(focusOffset)}`;
        (0, _selection.setSelection)({
          anchorNode: ref.current.firstChild,
          anchorOffset: anchorOffset + text.length,
          focusNode: ref.current.firstChild,
          focusOffset: focusOffset + text.length,
          isForward: true
        });
        setContent(ref.current.innerHTML);
      }
    }
  }), [ref, setContent]);
}
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