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/*!
* VisualEditor DataModel MWNowikiAnnotation class.
*
* @copyright See AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* DataModel MediaWiki nowiki annotation
*
* Represents `<nowiki>` tags (in HTML as `<span typeof="mw:Nowiki">`) and unwraps them when they change
* so as to retrigger Parsoid's escaping mechanism.
*
* @class
* @extends ve.dm.Annotation
* @constructor
* @param {Object} element [description]
*/
ve.dm.MWNowikiAnnotation = function VeDmMWNowikiAnnotation() {
// Parent constructor
ve.dm.MWNowikiAnnotation.super.apply( this, arguments );
};
/* Inheritance */
OO.inheritClass( ve.dm.MWNowikiAnnotation, ve.dm.Annotation );
/* Static Properties */
ve.dm.MWNowikiAnnotation.static.name = 'mwNowiki';
ve.dm.MWNowikiAnnotation.static.matchRdfaTypes = [ 'mw:Nowiki' ];
ve.dm.MWNowikiAnnotation.static.toDomElements = function ( dataElement, doc, converter, childDomElements ) {
const originalDomElements = converter.getStore().value( dataElement.originalDomElementsHash ),
originalChildren = originalDomElements && originalDomElements[ 0 ] && originalDomElements[ 0 ].childNodes,
domElement = document.createElement( 'span' );
let contentsChanged = false;
// Determine whether the contents changed
if ( !originalChildren || childDomElements.length !== originalChildren.length ) {
contentsChanged = true;
} else {
for ( let i = 0, len = originalChildren.length; i < len; i++ ) {
if ( !originalChildren[ i ].isEqualNode( childDomElements[ i ] ) ) {
contentsChanged = true;
break;
}
}
}
// If the contents changed, unwrap, otherwise, restore
if ( contentsChanged ) {
return [];
}
domElement.setAttribute( 'typeof', 'mw:Nowiki' );
return [ domElement ];
};
/* Registration */
ve.dm.modelRegistry.register( ve.dm.MWNowikiAnnotation );
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