@lexical/html
Version:
This package contains HTML helpers and functionality for Lexical.
10 lines (8 loc) • 3.43 kB
JavaScript
/**
* 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/selection"),n=require("@lexical/utils"),t=require("lexical");function o(l,i,r,s=null){let c=null===s||i.isSelected(s);const d=t.$isElementNode(i)&&i.excludeFromCopy("html");let u=i;null!==s&&t.$isTextNode(i)&&(u=e.$sliceSelectedTextNodeContent(s,i,"clone"));const a=t.$isElementNode(u)?u.getChildren():[],f=t.getRegisteredNode(l,u.getType());let m;m=f&&void 0!==f.exportDOM?f.exportDOM(l,u):u.exportDOM(l);const{element:h,after:p}=m;if(!h)return!1;const g=document.createDocumentFragment();for(let e=0;e<a.length;e++){const n=a[e],r=o(l,n,g,s);!c&&t.$isElementNode(i)&&r&&i.extractWithChild(n,s,"html")&&(c=!0)}if(c&&!d){if((n.isHTMLElement(h)||t.isDocumentFragment(h))&&h.append(g),r.append(h),p){const e=p.call(u,h);e&&(t.isDocumentFragment(h)?h.replaceChildren(e):h.replaceWith(e))}}else r.append(g);return c}const l=new Set(["STYLE","SCRIPT"]);function i(e,o,s,c,d=new Map,u){let a=[];if(l.has(e.nodeName))return a;let f=null;const m=function(e,n){const{nodeName:t}=e,o=n._htmlConversions.get(t.toLowerCase());let l=null;if(void 0!==o)for(const n of o){const t=n(e);null!==t&&(null===l||(l.priority||0)<=(t.priority||0))&&(l=t)}return null!==l?l.conversion:null}(e,o),h=m?m(e):null;let p=null;if(null!==h){p=h.after;const n=h.node;if(f=Array.isArray(n)?n[n.length-1]:n,null!==f){for(const[,e]of d)if(f=e(f,u),!f)break;f&&a.push(...Array.isArray(n)?n:[f])}null!=h.forChild&&d.set(e.nodeName,h.forChild)}const g=e.childNodes;let N=[];const $=(null==f||!t.$isRootOrShadowRoot(f))&&(null!=f&&t.$isBlockElementNode(f)||c);for(let e=0;e<g.length;e++)N.push(...i(g[e],o,s,$,new Map(d),f));return null!=p&&(N=p(N)),n.isBlockDomNode(e)&&(N=r(e,N,$?()=>{const e=new t.ArtificialNode__DO_NOT_USE;return s.push(e),e}:t.$createParagraphNode)),null==f?N.length>0?a=a.concat(N):n.isBlockDomNode(e)&&function(e){if(null==e.nextSibling||null==e.previousSibling)return!1;return t.isInlineDomNode(e.nextSibling)&&t.isInlineDomNode(e.previousSibling)}(e)&&(a=a.concat(t.$createLineBreakNode())):t.$isElementNode(f)&&f.append(...N),a}function r(e,n,o){const l=e.style.textAlign,i=[];let r=[];for(let e=0;e<n.length;e++){const s=n[e];if(t.$isBlockElementNode(s))l&&!s.getFormat()&&s.setFormat(l),i.push(s);else if(r.push(s),e===n.length-1||e<n.length-1&&t.$isBlockElementNode(n[e+1])){const e=o();e.setFormat(l),e.append(...r),i.push(e),r=[]}}return i}exports.$generateHtmlFromNodes=function(e,n){if("undefined"==typeof document||"undefined"==typeof window&&void 0===global.window)throw new Error("To use $generateHtmlFromNodes in headless mode please initialize a headless browser implementation such as JSDom before calling this function.");const l=document.createElement("div"),i=t.$getRoot().getChildren();for(let t=0;t<i.length;t++){o(e,i[t],l,n)}return l.innerHTML},exports.$generateNodesFromDOM=function(e,n){const o=t.isDOMDocumentNode(n)?n.body.childNodes:n.childNodes;let r=[];const s=[];for(const n of o)if(!l.has(n.nodeName)){const t=i(n,e,s,!1);null!==t&&(r=r.concat(t))}return function(e){for(const n of e)n.getNextSibling()instanceof t.ArtificialNode__DO_NOT_USE&&n.insertAfter(t.$createLineBreakNode());for(const n of e){const e=n.getChildren();for(const t of e)n.insertBefore(t);n.remove()}}(s),r};