@lobehub/editor
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A powerful and extensible rich text editor built on Meta's Lexical framework, providing a modern editing experience with React integration.
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JavaScript
function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
import { $getSelection, $isRangeSelection, getDOMSelection } from 'lexical';
/**
* Get the text content of the editor up to the anchor point of the selection.
* Get the text content before the anchor point of the selection
* @param selection Selection object from Lexical editor
* @returns
*/
export function getTextUpToAnchor(selection) {
var anchor = selection.anchor;
if (anchor.type !== 'text') {
return null;
}
var anchorNode = anchor.getNode();
if (!anchorNode.isSimpleText()) {
return null;
}
var anchorOffset = anchor.offset;
return anchorNode.getTextContent().slice(0, anchorOffset);
}
/**
*
* @param editor Lexical editor instance
* Get the text content before the selection anchor point in the editor
* @returns
*/
export function getQueryTextForSearch(editor) {
var text = null;
editor.getEditorState().read(function () {
var selection = $getSelection();
if (!$isRangeSelection(selection)) {
return;
}
text = getTextUpToAnchor(selection);
});
return text;
}
export function tryToPositionRange(leadOffset, range, editorWindow) {
var domSelection = getDOMSelection(editorWindow);
if (domSelection === null || !domSelection.isCollapsed) {
return false;
}
var anchorNode = domSelection.anchorNode;
var startOffset = leadOffset;
var endOffset = domSelection.anchorOffset;
if (anchorNode === null || endOffset === null) {
return false;
}
try {
range.setStart(anchorNode, startOffset);
range.setEnd(anchorNode, endOffset);
} catch (_unused) {
return false;
}
return true;
}
// Got from https://stackoverflow.com/a/42543908/2013580
export function getScrollParent(element, includeHidden) {
// Return element itself on server side as fallback
if (typeof document === 'undefined') {
return element;
}
var style = getComputedStyle(element);
var excludeStaticParent = style.position === 'absolute';
var overflowRegex = includeHidden ? /(auto|scroll|hidden)/ : /(auto|scroll)/;
if (style.position === 'fixed') {
return document.body;
}
for (var parent = element; parent = parent.parentElement;) {
style = getComputedStyle(parent);
if (excludeStaticParent && style.position === 'static') {
continue;
}
if (overflowRegex.test(style.overflow + style.overflowY + style.overflowX)) {
return parent;
}
}
return document.body;
}
export var scrollIntoViewIfNeeded = function scrollIntoViewIfNeeded(target) {
// Skip on server side
if (typeof window === 'undefined' || typeof document === 'undefined') {
return;
}
var typeaheadContainerNode = document.getElementById('typeahead-menu');
if (!typeaheadContainerNode) {
return;
}
var typeaheadRect = typeaheadContainerNode.getBoundingClientRect();
if (typeaheadRect.top + typeaheadRect.height > window.innerHeight) {
typeaheadContainerNode.scrollIntoView({
block: 'center'
});
}
if (typeaheadRect.top < 0) {
typeaheadContainerNode.scrollIntoView({
block: 'center'
});
}
target.scrollIntoView({
block: 'nearest'
});
};
export var PUNCTUATION = '\\.,\\+\\*\\?\\$\\@\\|#{}\\(\\)\\^\\-\\[\\]\\\\/!%\'"~=<>_:;';
export function getBasicTypeaheadTriggerMatch(trigger, _ref) {
var _ref$minLength = _ref.minLength,
minLength = _ref$minLength === void 0 ? 0 : _ref$minLength,
_ref$maxLength = _ref.maxLength,
maxLength = _ref$maxLength === void 0 ? 75 : _ref$maxLength,
_ref$punctuation = _ref.punctuation,
punctuation = _ref$punctuation === void 0 ? PUNCTUATION : _ref$punctuation,
_ref$allowWhitespace = _ref.allowWhitespace,
allowWhitespace = _ref$allowWhitespace === void 0 ? false : _ref$allowWhitespace;
return function (text) {
// When whitespace is not allowed, we need to ensure the regex stops at whitespace
var validCharsSuffix = allowWhitespace ? '' : '\\s';
var validChars = '[^' + trigger + punctuation + validCharsSuffix + ']';
// Create regex that matches from trigger to either end of string OR whitespace (when not allowed)
var regexPattern = allowWhitespace ? '(^|\\s|\\()(' + '[' + trigger + ']' + '((?:' + validChars + '){0,' + maxLength + '})' + ')$' : '(^|\\s|\\()(' + '[' + trigger + ']' + '((?:' + validChars + ')*?)' + ')(?=\\s|$)';
var TypeaheadTriggerRegex = new RegExp(regexPattern);
var match = TypeaheadTriggerRegex.exec(text);
if (match !== null) {
var maybeLeadingWhitespace = match[1];
var matchingString = match[3];
// Check length constraints
if (matchingString.length >= minLength && matchingString.length <= maxLength) {
return {
leadOffset: match.index + maybeLeadingWhitespace.length,
matchingString: matchingString,
replaceableString: match[2]
};
}
}
return null;
};
}
/**
* Walk backwards along user input and forward through entity title to try
* and replace more of the user's text with entity.
*/
function getFullMatchOffset(documentText, entryText, offset) {
var triggerOffset = offset;
for (var i = triggerOffset; i <= entryText.length; i++) {
if (documentText.slice(-i) === entryText.slice(0, Math.max(0, i))) {
triggerOffset = i;
}
}
return triggerOffset;
}
/**
* Split Lexical TextNode and return a new TextNode only containing matched text.
* Common use cases include: removing the node, replacing with a new node.
*/
export function $splitNodeContainingQuery(match) {
var selection = $getSelection();
if (!$isRangeSelection(selection) || !selection.isCollapsed()) {
return null;
}
var anchor = selection.anchor;
if (anchor.type !== 'text') {
return null;
}
var anchorNode = anchor.getNode();
if (!anchorNode.isSimpleText()) {
return null;
}
var selectionOffset = anchor.offset;
var textContent = anchorNode.getTextContent().slice(0, selectionOffset);
var characterOffset = match.replaceableString.length;
var queryOffset = getFullMatchOffset(textContent, match.matchingString, characterOffset);
var startOffset = selectionOffset - queryOffset;
if (startOffset < 0) {
return null;
}
var newNode;
if (startOffset === 0) {
var _anchorNode$splitText = anchorNode.splitText(selectionOffset);
var _anchorNode$splitText2 = _slicedToArray(_anchorNode$splitText, 1);
newNode = _anchorNode$splitText2[0];
} else {
var _anchorNode$splitText3 = anchorNode.splitText(startOffset, selectionOffset);
var _anchorNode$splitText4 = _slicedToArray(_anchorNode$splitText3, 2);
newNode = _anchorNode$splitText4[1];
}
return newNode;
}