mediawiki-extensions-Visual.../modules/ve-mw/ve.MWutils.js
Ed Sanders a22b9c8ea3 Fix fragment links in preview
Bug: T212554
Change-Id: Ic9b8f14c377b0dd43aa648983fac27272a64b66f
2019-01-18 14:39:00 +00:00

178 lines
6.1 KiB
JavaScript

/*!
* VisualEditor MediaWiki utilities.
*
* @copyright 2011-2019 VisualEditor Team and others; see http://ve.mit-license.org
*/
/**
* @class ve
*/
/**
* Decode a URI component into a mediawiki article title
*
* N.B. Illegal article titles can result from fairly reasonable input (e.g. "100%25beef");
* see https://phabricator.wikimedia.org/T137847 .
*
* @param {string} s String to decode
* @param {boolean} [preserveUnderscores] Don't convert underscores to spaces
* @return {string} Decoded string, or original string if decodeURIComponent failed
*/
ve.decodeURIComponentIntoArticleTitle = function ( s, preserveUnderscores ) {
try {
s = decodeURIComponent( s );
} catch ( e ) {
return s;
}
if ( preserveUnderscores ) {
return s;
}
return s.replace( /_/g, ' ' );
};
/**
* Unwrap Parsoid sections
*
* @param {HTMLElement} element Parent element, e.g. document body
*/
ve.unwrapParsoidSections = function ( element ) {
Array.prototype.forEach.call( element.querySelectorAll( 'section[data-mw-section-id]' ), function ( section ) {
var parent = section.parentNode;
while ( section.firstChild ) {
parent.insertBefore( section.firstChild, section );
}
parent.removeChild( section );
} );
};
/**
* Strip legacy (non-HTML5) IDs; typically found as section IDs inside
* headings.
*
* @param {HTMLElement} element Parent element, e.g. document body
*/
ve.stripParsoidFallbackIds = function ( element ) {
Array.prototype.forEach.call( element.querySelectorAll( 'span[typeof="mw:FallbackId"][id]:empty' ), function ( legacySpan ) {
legacySpan.parentNode.removeChild( legacySpan );
} );
};
/**
* Fix fragment links which should be relative to the current document
*
* This prevents these links from trying to navigate to another page,
* or open in a new window.
*
* Call this after ve.targetLinksToNewWindow, as it removes the target attribute.
* Call this after LinkCache.styleParsoidElements, as it breaks that method by including the query string.
*
* @param {HTMLElement} element Parent element, e.g. document body
* @param {mw.Title} title Current title, only links to this title will be normalized
* @param {string} [prefix] Prefix to add to fragment and target ID to avoid collisions
*/
ve.fixFragmentLinks = function ( container, docTitle, prefix ) {
var docTitleText = docTitle.getPrefixedText();
prefix = prefix || '';
Array.prototype.forEach.call( container.querySelectorAll( 'a[href*="#"]' ), function ( el ) {
var target, title,
fragment = new mw.Uri( el.href ).fragment,
targetData = ve.dm.MWInternalLinkAnnotation.static.getTargetDataFromHref( el.href, el.ownerDocument );
if ( targetData.isInternal ) {
title = mw.Title.newFromText( targetData.title );
if ( title && title.getPrefixedText() === docTitleText ) {
if ( !fragment ) {
// Special case for empty fragment, even if prefix set
el.setAttribute( 'href', '#' );
} else {
if ( prefix ) {
target = container.querySelector( '#' + $.escapeSelector( fragment ) );
// There may be multiple links to a specific target, so check the target
// hasn't already been fixed (in which case it would be null)
if ( target ) {
target.setAttribute( 'id', prefix + fragment );
}
}
el.setAttribute( 'href', '#' + prefix + fragment );
}
el.removeAttribute( 'target' );
}
}
} );
};
/**
* Expand a string of the form jquery.foo,bar|jquery.ui.baz,quux to
* an array of module names like [ 'jquery.foo', 'jquery.bar',
* 'jquery.ui.baz', 'jquery.ui.quux' ]
*
* Implementation of ResourceLoaderContext::expandModuleNames
* TODO: Consider upstreaming this to MW core.
*
* @param {string} moduleNames Packed module name list
* @return {string[]} Array of module names
*/
ve.expandModuleNames = function ( moduleNames ) {
var modules = [];
moduleNames.split( '|' ).forEach( function ( group ) {
var matches, prefix, suffixes;
if ( group.indexOf( ',' ) === -1 ) {
// This is not a set of modules in foo.bar,baz notation
// but a single module
modules.push( group );
} else {
// This is a set of modules in foo.bar,baz notation
matches = group.match( /(.*)\.([^.]*)/ );
if ( !matches ) {
// Prefixless modules, i.e. without dots
modules = modules.concat( group.split( ',' ) );
} else {
// We have a prefix and a bunch of suffixes
prefix = matches[ 1 ];
suffixes = matches[ 2 ].split( ',' ); // [ 'bar', 'baz' ]
suffixes.forEach( function ( suffix ) {
modules.push( prefix + '.' + suffix );
} );
}
}
} );
return modules;
};
/**
* Split Parsoid resource name into the href prefix and the page title.
*
* @param {string} resourceName Resource name, from a `href` or `resource` attribute
* @return {Object} Object with the following properties:
* @return {string} return.title Full page title in text form (with namespace, and spaces instead of underscores)
* @return {string} return.hrefPrefix Href prefix like './' or '../'
* @return {string} return.rawTitle Everything following `hrefPrefix` in input, unprocessed
*/
ve.parseParsoidResourceName = function ( resourceName ) {
// Resource names are always prefixed with './' to prevent the MediaWiki namespace from being
// interpreted as a URL protocol, consider e.g. 'href="./File:Foo.png"'. If this resource name
// came from a page that is a subpage, it is also prefixed with appropriate number of '../'.
// (We accept input without the prefix, so this can also take plain page titles.)
var matches = resourceName.match( /^((?:\.\.?\/)*)(.*)$/ );
return {
// '%' and '?' are valid in page titles, but normally URI-encoded. This also changes underscores
// to spaces.
title: ve.decodeURIComponentIntoArticleTitle( matches[ 2 ] ),
rawTitle: matches[ 2 ],
hrefPrefix: matches[ 1 ]
};
};
/**
* Extract the page title from a Parsoid resource name.
*
* @param {string} resourceName Resource name, from a `href` or `resource` attribute
* @return {string} Full page title in text form (with namespace, and spaces instead of underscores)
*/
ve.normalizeParsoidResourceName = function ( resourceName ) {
return ve.parseParsoidResourceName( resourceName ).title;
};