@lexical/react/LexicalCharacterLimitPlugin.prod.js

This package provides Lexical components and hooks for React applications.

/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */

"use strict";var e=require("@lexical/react/LexicalComposerContext"),t=require("react"),n=require("@lexical/overflow"),r=require("@lexical/text"),i=require("@lexical/utils"),o=require("lexical"),s=require("react/jsx-runtime");function l(e,s,l=Object.freeze({})){const{strlen:f=e=>e.length,remainingCharacters:g=()=>{}}=l;t.useEffect(()=>{e.hasNodes([n.OverflowNode])||function(e,...t){const n=new URL("https://lexical.dev/docs/error"),r=new URLSearchParams;r.append("code",e);for(const e of t)r.append("v",e);throw n.search=r.toString(),Error(`Minified Lexical error #${e}; visit ${n.toString()} for the full message or use the non-minified dev environment for full errors and additional helpful warnings.`)}(57)},[e]),t.useEffect(()=>{let t=e.getEditorState().read(r.$rootTextContent),l=0;return i.mergeRegister(e.registerTextContentListener(e=>{t=e}),e.registerUpdateListener(({dirtyLeaves:r,dirtyElements:u})=>{const d=e.isComposing(),h=r.size>0||u.size>0;if(d||!h)return;const m=f(t),x=m>s||null!==l&&l>s;if(g(s-m),null===l||x){const r=function(e,t,n){const r=Intl.Segmenter;let i=0,o=0;if("function"==typeof r){const s=(new r).segment(e);for(const{segment:e}of s){const r=o+n(e);if(r>t)break;o=r,i+=e.length}}else{const r=Array.from(e),s=r.length;for(let e=0;e<s;e++){const s=r[e],l=o+n(s);if(l>t)break;o=l,i+=s.length}}return i}(t,s,f);e.update(()=>{!function(e){const t=i.$dfs(),r=t.length;let s=0;for(let l=0;l<r;l+=1){const{node:r}=t[l],f=o.$isLeafNode(r)&&!i.$findMatchingParent(r,n.$isOverflowNode);if(n.$isOverflowNode(r)){const t=s;if(s+r.getTextContentSize()<=e){const e=r.getParent(),t=r.getPreviousSibling(),n=r.getNextSibling();i.$unwrapNode(r);const s=o.$getSelection();!o.$isRangeSelection(s)||s.anchor.getNode().isAttached()&&s.focus.getNode().isAttached()||(o.$isTextNode(t)?t.select():o.$isTextNode(n)?n.select():null!==e&&e.select())}else if(t<e){const n=r.getFirstDescendant(),s=t+(null!==n?n.getTextContentSize():0);(o.$isTextNode(n)&&n.isSimpleText()||s<=e)&&i.$unwrapNode(r)}}else if(f){const t=s;if(s+=r.getTextContentSize(),s>e&&!n.$isOverflowNode(r.getParent())){const n=o.$getSelection();let i;if(t<e&&o.$isTextNode(r)&&r.isSimpleText()){const[,n]=r.splitText(e-t);i=c(n)}else i=c(r);null!==n&&o.$setSelection(n),a(i)}}}}(r)},{tag:o.HISTORY_MERGE_TAG})}l=m}),e.registerCommand(o.DELETE_CHARACTER_COMMAND,e=>{const t=o.$getSelection();if(!o.$isRangeSelection(t))return!1;const n=t.anchor.getNode().getParent(),r=n?n.getParent():null,i=r?r.getNextSibling():null;return t.deleteCharacter(e),r&&r.isEmpty()?r.remove():o.$isElementNode(i)&&i.isEmpty()&&i.remove(),!0},o.COMMAND_PRIORITY_LOW))},[e,s,g,f])}function c(e){const t=n.$createOverflowNode();return e.replace(t),t.append(e),t}function a(e){const t=e.getPreviousSibling();if(!n.$isOverflowNode(t))return;const r=e.getFirstChild(),i=t.getChildren(),s=i.length;if(null===r)e.append(...i);else for(let e=0;e<s;e++)r.insertBefore(i[e]);const l=o.$getSelection();if(o.$isRangeSelection(l)){const n=l.anchor,r=n.getNode(),i=l.focus,o=n.getNode();r.is(t)?n.set(e.getKey(),n.offset,"element"):r.is(e)&&n.set(e.getKey(),s+n.offset,"element"),o.is(t)?i.set(e.getKey(),i.offset,"element"):o.is(e)&&i.set(e.getKey(),s+i.offset,"element")}t.remove()}let f=null;function g(e){const t=void 0===window.TextEncoder?null:(null===f&&(f=new window.TextEncoder),f);if(null===t){const t=encodeURIComponent(e).match(/%[89ABab]/g);return e.length+(t?t.length:0)}return t.encode(e).length}function u({remainingCharacters:e}){return s.jsx("span",{className:"characters-limit "+(e<0?"characters-limit-exceeded":""),children:e})}exports.CharacterLimitPlugin=function({charset:n="UTF-16",maxLength:r=5,renderer:i=u}){const[o]=e.useLexicalComposerContext(),[s,c]=t.useState(r),a=t.useMemo(()=>({remainingCharacters:c,strlen:e=>{if("UTF-8"===n)return g(e);if("UTF-16"===n)return e.length;throw new Error("Unrecognized charset")}}),[n]);return l(o,r,a),i({remainingCharacters:s})};