usfm-editor/dist/components/SelectionSeparator.js

A WYSIWYG editor component for USFM

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.SelectionSeparator = void 0;

var React = _interopRequireWildcard(require("react"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

/**
 * The user's selection cannot be expanded through this zero-width space. This partially solves the
 * problem where the user double- or triple-clicks on a word, causing the selection to span through
 * a non-contentEditable node (like a verse number or chapter number.) This works well when the
 * SelectionSeparator is added directly after a verse/chapter number; the user's selection stays
 * to the RIGHT of the number (i.e. within the desired verse). However, empirical obersvation shows that
 * placing the SelectionSeparator directly before a verse/chapter number does NOT prevent the case where
 * the user double/triple clicks on a word in the preceding verse, and the selection expands through the
 * next verse's verse number.
 *
 * Furthermore, placing the SelectionSeparator at the end of a verse node or the last editable node
 * within a verse (such as an inlineContainer or a paragraph) causes the visible cursor to disappear
 * when the selection is at the end of that node.
 *
 * Therefore, it is currently only recommended to place the SelectionSeparator directly after a
 * non-contentEditable node (such as a verse/chapter number). The directionality of the user's intended
 * selection can be inferred from the fact that any selection through the non-contentEditable node must
 * have originated to the LEFT of that node.
 */
const SelectionSeparator = () => /*#__PURE__*/React.createElement("span", {
  // Zero-width space ensures that selection stays to the right of the verse number
  className: "usfm-editor-no-select",
  contentEditable: false
}, "\u200B");

exports.SelectionSeparator = SelectionSeparator;