mediawiki-extensions-Visual.../modules/ve/dm/metaitems/ve.dm.AlienMetaItem.js
Catrope a835c03bc1 Change MetaNodes to MetaItems
Rather than meta-things being special kinds of nodes, they are now a
separate class of things (MetaItems) along with Nodes and Annotations.

* Created a generic ve.dm.MetaItem that meta items inherit from.
  There will be actual instances of this class as well in the upcoming
  meta group code.
* Renamed MetaNode to AlienMetaItem, MWMetaNode to MWMetaItem,
  'metaBlock'/'metaInline' to 'alienMeta'
* Created a MetaItemFactory, handle meta items in the ModelRegistry
* Kill ve.dm.Node.static.isMeta, now obsolete

ve.dm.Converter:
* Pass in the MetaItemFactory
* Look up data element types in the ModelRegistry rather than the
  NodeFactory, because they can be either nodes or meta items
* Document createDataElement() and make explicit that modelClass can be
  either a node or a meta item
* Handle meta items in getDataFromDom()
* In getDomFromData(), check the MetaItemFactory as well as the NodeFactory

Change-Id: I893709c6f3aa00f85c1b905b70f9f4e597bdeada
2013-03-14 23:35:50 -07:00

72 lines
2.1 KiB
JavaScript

/*!
* VisualEditor DataModel AlienMetaItem class.
*
* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* DataModel alien meta item.
*
* @class
* @extends ve.dm.MetaItem
* @constructor
* @param {Object} element Reference to element in meta-linmod
*/
ve.dm.AlienMetaItem = function VeDmAlienMetaItem( element ) {
// Parent constructor
ve.dm.MetaItem.call( this, element );
};
/* Inheritance */
ve.inheritClass( ve.dm.AlienMetaItem, ve.dm.MetaItem );
/* Static Properties */
ve.dm.AlienMetaItem.static.name = 'alienMeta';
ve.dm.AlienMetaItem.static.matchTagNames = [ 'meta', 'link' ];
ve.dm.AlienMetaItem.static.toDataElement = function ( domElements ) {
var firstDomElement = domElements[0],
isLink = firstDomElement.nodeName.toLowerCase() === 'link',
keyAttr = isLink ? 'rel' : 'property',
valueAttr = isLink ? 'href' : 'content',
dataElement = {
'type': 'alienMeta',
'attributes': {
'style': isLink ? 'link' : 'meta',
'key': firstDomElement.getAttribute( keyAttr )
}
};
if ( firstDomElement.hasAttribute( valueAttr ) ) {
dataElement.attributes.value = firstDomElement.getAttribute( valueAttr );
}
return dataElement;
};
ve.dm.AlienMetaItem.static.toDomElements = function ( dataElement ) {
var style = dataElement.attributes && dataElement.attributes.style || 'meta',
isLink = style === 'link',
tag = isLink ? 'link' : 'meta',
keyAttr = isLink ? 'rel' : 'property',
valueAttr = isLink ? 'href' : 'content',
domElement;
if ( style === 'comment' ) {
return [ document.createComment( dataElement.attributes && dataElement.attributes.text || '' ) ];
}
domElement = document.createElement( tag );
if ( dataElement.attributes && dataElement.attributes.key !== null ) {
domElement.setAttribute( keyAttr, dataElement.attributes.key );
}
if ( dataElement.attributes && dataElement.attributes.value ) {
domElement.setAttribute( valueAttr, dataElement.attributes.value );
}
return [ domElement ];
};
/* Registration */
ve.dm.modelRegistry.register( ve.dm.AlienMetaItem );