mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-12-11 22:16:15 +00:00
dbc696124f
Temporarily disable prefer-const as this requires manual fixing. Change-Id: I477b69a57e8d33535c6fc71dba196a8605780725
379 lines
13 KiB
JavaScript
379 lines
13 KiB
JavaScript
/*!
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* Parsoid utilities.
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*
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* @copyright See AUTHORS.txt
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*/
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mw.libs.ve = mw.libs.ve || {};
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/**
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* Decode a URI component into a mediawiki article title
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*
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* N.B. Illegal article titles can result from fairly reasonable input (e.g. "100%25beef");
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* see https://phabricator.wikimedia.org/T137847 .
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*
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* @param {string} s String to decode
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* @param {boolean} [preserveUnderscores=false] Don't convert underscores to spaces
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* @return {string} Decoded string, or original string if decodeURIComponent failed
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*/
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mw.libs.ve.decodeURIComponentIntoArticleTitle = function ( s, preserveUnderscores ) {
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try {
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s = decodeURIComponent( s );
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} catch ( e ) {
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return s;
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}
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if ( preserveUnderscores ) {
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return s;
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}
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return s.replace( /_/g, ' ' );
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};
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/**
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* Unwrap Parsoid sections
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*
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* data-mw-section-id attributes are copied to the first child (the heading) during
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* this step so that we can place the cursor in the correct place when section editing.
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* These attributes **must be removed** before being sent back to Parsoid to avoid
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* unnecessary re-serialization.
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*
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* @param {HTMLElement} element Parent element, e.g. document body
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* @param {string} [keepSection] Section to keep
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*/
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mw.libs.ve.unwrapParsoidSections = function ( element, keepSection ) {
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Array.prototype.forEach.call( element.querySelectorAll( 'section[data-mw-section-id]' ), ( section ) => {
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const parent = section.parentNode,
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sectionId = section.getAttribute( 'data-mw-section-id' );
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// Copy section ID to first child (should be a heading)
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// Pseudo-sections (with negative section IDs) may not have a heading
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if ( sectionId !== null && +sectionId > 0 ) {
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section.firstChild.setAttribute( 'data-mw-section-id', sectionId );
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}
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if ( keepSection !== undefined && sectionId === keepSection ) {
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return;
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}
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while ( section.firstChild ) {
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parent.insertBefore( section.firstChild, section );
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}
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parent.removeChild( section );
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} );
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};
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/**
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* Strip legacy (non-HTML5) IDs; typically found as section IDs inside
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* headings.
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*
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* @param {HTMLElement} element Parent element, e.g. document body
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*/
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mw.libs.ve.stripParsoidFallbackIds = function ( element ) {
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Array.prototype.forEach.call( element.querySelectorAll( 'span[typeof="mw:FallbackId"][id]:empty' ), ( legacySpan ) => {
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legacySpan.parentNode.removeChild( legacySpan );
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} );
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};
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mw.libs.ve.restbaseIdRegExp = /^mw[a-zA-Z0-9\-_]{2,6}$/;
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mw.libs.ve.stripRestbaseIds = function ( doc ) {
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const restbaseIdRegExp = mw.libs.ve.restbaseIdRegExp;
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Array.prototype.forEach.call( doc.querySelectorAll( '[id^="mw"]' ), ( element ) => {
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if ( restbaseIdRegExp.test( element.id ) ) {
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element.removeAttribute( 'id' );
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}
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} );
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};
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/**
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* Re-duplicate deduplicated TemplateStyles, for correct rendering when editing a section or
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* when templates are removed during the edit.
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*
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* @param {HTMLElement} element Parent element, e.g. document body
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*/
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mw.libs.ve.reduplicateStyles = function ( element ) {
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Array.prototype.forEach.call( element.querySelectorAll( 'link[rel~="mw-deduplicated-inline-style"]' ), ( link ) => {
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const href = link.getAttribute( 'href' );
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if ( !href || href.slice( 0, 'mw-data:'.length ) !== 'mw-data:' ) {
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return;
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}
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const key = href.slice( 'mw-data:'.length );
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const style = element.querySelector( 'style[data-mw-deduplicate="' + key + '"]' );
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if ( !style ) {
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return;
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}
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const newStyle = link.ownerDocument.createElement( 'style' );
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newStyle.setAttribute( 'data-mw-deduplicate', key );
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// Copy content from the old `style` node (for rendering)
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for ( let i = 0; i < style.childNodes.length; i++ ) {
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newStyle.appendChild( style.childNodes[ i ].cloneNode( true ) );
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}
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// Copy attributes from the old `link` node (for selser)
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Array.prototype.forEach.call( link.attributes, ( attr ) => {
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if ( attr.name !== 'rel' && attr.name !== 'href' ) {
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newStyle.setAttribute( attr.name, attr.value );
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}
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} );
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link.parentNode.replaceChild( newStyle, link );
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} );
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Array.prototype.forEach.call( element.querySelectorAll( 'style[data-mw-deduplicate]:empty' ), ( style ) => {
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const key = style.getAttribute( 'data-mw-deduplicate' );
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const firstStyle = element.querySelector( 'style[data-mw-deduplicate="' + key + '"]' );
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if ( !firstStyle || firstStyle === style ) {
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return;
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}
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// Copy content from the first matching `style` node (for rendering)
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for ( let i = 0; i < firstStyle.childNodes.length; i++ ) {
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style.appendChild( firstStyle.childNodes[ i ].cloneNode( true ) );
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}
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} );
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};
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/**
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* De-duplicate TemplateStyles, like Parsoid does.
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*
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* @param {HTMLElement} element Parent element, e.g. document body
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*/
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mw.libs.ve.deduplicateStyles = function ( element ) {
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/**
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* Check whether `node` is in a fosterable position. (Nodes in these positions may be moved
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* elsewhere in the DOM by the HTML5 parsing algorithm, if they don't have the right tag name.)
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* https://html.spec.whatwg.org/#appropriate-place-for-inserting-a-node
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*
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* @private
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* @param {Node|null} node
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* @return {boolean}
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*/
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function isFosterablePosition( node ) {
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const fosterablePositions = [ 'table', 'thead', 'tbody', 'tfoot', 'tr' ];
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return node && fosterablePositions.indexOf( node.parentNode.nodeName.toLowerCase() ) !== -1;
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}
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const styleTagKeys = {};
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Array.prototype.forEach.call( element.querySelectorAll( 'style[data-mw-deduplicate]' ), ( style ) => {
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const key = style.getAttribute( 'data-mw-deduplicate' );
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if ( !styleTagKeys[ key ] ) {
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// Not a dupe
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styleTagKeys[ key ] = true;
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return;
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}
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if ( !isFosterablePosition( style ) ) {
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// Dupe - replace with a placeholder <link> reference
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const link = style.ownerDocument.createElement( 'link' );
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link.setAttribute( 'rel', 'mw-deduplicated-inline-style' );
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link.setAttribute( 'href', 'mw-data:' + key );
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// Copy attributes from the old `link` node (for selser)
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Array.prototype.forEach.call( style.attributes, ( attr ) => {
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if ( attr.name !== 'rel' && attr.name !== 'data-mw-deduplicate' ) {
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link.setAttribute( attr.name, attr.value );
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}
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} );
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style.parentNode.replaceChild( link, style );
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} else {
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// Duplicate style tag found in fosterable position.
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// Not deduping it (to avoid corruption when the resulting HTML is parsed: T299767),
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// but emptying out the style tag for consistency with Parsoid.
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// Parsoid says it does this for performance reasons.
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style.innerHTML = '';
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}
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} );
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};
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/**
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* Fix fragment links which should be relative to the current document
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*
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* This prevents these links from trying to navigate to another page,
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* or open in a new window.
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*
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* Call this after ve.targetLinksToNewWindow, as it removes the target attribute.
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* Call this after LinkCache.styleParsoidElements, as it breaks that method by including the query string.
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*
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* @param {HTMLElement} container Parent element, e.g. document body
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* @param {mw.Title} docTitle Current title, only links to this title will be normalized
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* @param {string} [prefix] Prefix to add to fragment and target ID to avoid collisions
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*/
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mw.libs.ve.fixFragmentLinks = function ( container, docTitle, prefix ) {
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const docTitleText = docTitle.getPrefixedText();
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prefix = prefix || '';
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Array.prototype.forEach.call( container.querySelectorAll( 'a[href*="#"]' ), ( el ) => {
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let fragment = null;
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if ( el.getAttribute( 'href' )[ 0 ] === '#' ) {
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// Legacy parser
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fragment = el.getAttribute( 'href' ).slice( 1 );
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} else {
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// Parsoid HTML
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const targetData = mw.libs.ve.getTargetDataFromHref( el.href, el.ownerDocument );
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if ( targetData.isInternal ) {
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const title = mw.Title.newFromText( targetData.title );
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if ( title && title.getPrefixedText() === docTitleText ) {
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fragment = new URL( el.href ).hash.slice( 1 );
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}
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}
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}
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if ( fragment !== null ) {
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if ( !fragment ) {
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// Special case for empty fragment, even if prefix set
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el.setAttribute( 'href', '#' );
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} else {
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if ( prefix ) {
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const target = container.querySelector( '#' + $.escapeSelector( fragment ) );
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// There may be multiple links to a specific target, so check the target
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// hasn't already been fixed (in which case it would be null)
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if ( target ) {
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target.setAttribute( 'id', prefix + fragment );
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target.setAttribute( 'data-mw-id-fixed', '' );
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}
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}
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el.setAttribute( 'href', '#' + prefix + fragment );
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}
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el.removeAttribute( 'target' );
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}
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} );
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// Remove any section heading anchors which weren't fixed above (T218492)
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Array.prototype.forEach.call( container.querySelectorAll( 'h1, h2, h3, h4, h5, h6' ), ( el ) => {
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if ( el.hasAttribute( 'id' ) && !el.hasAttribute( 'data-mw-id-fixed' ) ) {
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el.removeAttribute( 'id' );
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}
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} );
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};
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/**
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* @typedef {Object} TargetData
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* @memberof mw.libs.ve
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* @property {string} title The title of the internal link (if the href is internal)
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* @property {boolean} isInternal True if the href pointed to the local wiki, false if href is external
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*/
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/**
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* Parse URL to get title it points to.
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*
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* @param {string} href
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* @param {HTMLDocument} doc Document whose base URL to use
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* @return {mw.libs.ve.TargetData} Information about the given href
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*/
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mw.libs.ve.getTargetDataFromHref = function ( href, doc ) {
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function regexEscape( str ) {
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return str.replace( /([.?*+^$[\]\\(){}|-])/g, '\\$1' );
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}
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function returnExternalData() {
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return { isInternal: false };
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}
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function returnInternalData( titleish ) {
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// This value doesn't necessarily come from Parsoid (and it might not have the "./" prefix), but
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// this method will work fine.
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const data = mw.libs.ve.parseParsoidResourceName( titleish );
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data.isInternal = true;
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return data;
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}
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const url = new URL( href, doc.baseURI );
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// Equivalent to `ve.init.platform.getExternalLinkUrlProtocolsRegExp()`, which can not be called here
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const externalLinkUrlProtocolsRegExp = new RegExp( '^(' + mw.config.get( 'wgUrlProtocols' ) + ')', 'i' );
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// We don't want external links that don't start with a registered external URL protocol
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// (to avoid generating 'javascript:' URLs), so treat it as internal
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if ( !externalLinkUrlProtocolsRegExp.test( url.toString() ) ) {
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return returnInternalData( url.toString() );
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}
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// Strip red link query parameters
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if ( url.searchParams.get( 'action' ) === 'edit' && url.searchParams.get( 'redlink' ) === '1' ) {
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url.searchParams.delete( 'action' );
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url.searchParams.delete( 'redlink' );
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}
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// Count remaining query parameters
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const keys = [];
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url.searchParams.forEach( ( val, key ) => {
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keys.push( key );
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} );
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const queryLength = keys.length;
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const relativeHref = url.toString().replace( /^https?:/i, '' );
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// Check if this matches the server's script path (as used by red links)
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const scriptBase = new URL( mw.config.get( 'wgScript' ), doc.baseURI ).toString().replace( /^https?:/i, '' );
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if ( relativeHref.indexOf( scriptBase ) === 0 ) {
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if ( queryLength === 1 && url.searchParams.get( 'title' ) ) {
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return returnInternalData( url.searchParams.get( 'title' ) + url.hash );
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}
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}
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// Check if this matches the server's article path
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const articleBase = new URL( mw.config.get( 'wgArticlePath' ), doc.baseURI ).toString().replace( /^https?:/i, '' );
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const articleBaseRegex = new RegExp( regexEscape( articleBase ).replace( regexEscape( '$1' ), '(.*)' ) );
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const matches = relativeHref.match( articleBaseRegex );
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if ( matches ) {
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if ( queryLength === 0 && matches && matches[ 1 ].split( '#' )[ 0 ].indexOf( '?' ) === -1 ) {
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// Take the relative path
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return returnInternalData( matches[ 1 ] );
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}
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}
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// Doesn't match any of the known URL patterns, or has extra parameters
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return returnExternalData();
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};
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/**
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* Encode a page title into a Parsoid resource name.
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*
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* @param {string} title
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* @return {string}
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*/
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mw.libs.ve.encodeParsoidResourceName = function ( title ) {
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// Parsoid: Sanitizer::sanitizeTitleURI, Env::makeLink
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const idx = title.indexOf( '#' );
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let anchor = null;
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if ( idx !== -1 ) {
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anchor = title.slice( idx + 1 );
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title = title.slice( 0, idx );
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}
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let encodedTitle = title.replace( /[%? [\]#|<>]/g, ( match ) => mw.util.wikiUrlencode( match ) );
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if ( anchor !== null ) {
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encodedTitle += '#' + mw.util.escapeIdForLink( anchor );
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}
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return './' + encodedTitle;
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};
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/**
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* @typedef ParsedResource
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* @memberof mw.libs.ve
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* @property {string} title Full page title in text form (with namespace, and spaces instead of underscores)
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*/
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/**
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* Split Parsoid resource name into the href prefix and the page title.
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*
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* @param {string} resourceName Resource name, from a `href` or `resource` attribute
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* @return {mw.libs.ve.ParsedResource} Parsed resource name
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*/
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mw.libs.ve.parseParsoidResourceName = function ( resourceName ) {
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// Resource names are always prefixed with './' to prevent the MediaWiki namespace from being
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// interpreted as a URL protocol, consider e.g. 'href="./File:Foo.png"'.
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// (We accept input without the prefix, so this can also take plain page titles.)
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const matches = resourceName.match( /^(\.\/|)(.*)$/ );
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return {
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// '%' and '?' are valid in page titles, but normally URI-encoded. This also changes underscores
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// to spaces.
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title: mw.libs.ve.decodeURIComponentIntoArticleTitle( matches[ 2 ] )
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};
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};
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/**
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* Extract the page title from a Parsoid resource name.
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*
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* @param {string} resourceName Resource name, from a `href` or `resource` attribute
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* @return {string} Full page title in text form (with namespace, and spaces instead of underscores)
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*/
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mw.libs.ve.normalizeParsoidResourceName = function ( resourceName ) {
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return mw.libs.ve.parseParsoidResourceName( resourceName ).title;
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};
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