mediawiki-extensions-Visual.../modules/ve/dm/nodes/ve.dm.MetaNode.js
Ed Sanders edcaaf9edc Use static.name once for ce and dm nodes
Add a static.name property to ce nodes and make sure both ce
and dm nodes always use the static.name property in constructors
and registration calls.

The result of this is that any given node type should now only
appear once in the code as a string.

Bug: 45701
Change-Id: Ibf31de16ab28ad58209c1443cd74f93dda278998
2013-03-07 17:19:39 -08:00

111 lines
3.1 KiB
JavaScript

/*!
* VisualEditor DataModel MetaNode class.
*
* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* DataModel meta node.
*
* @class
* @abstract
* @extends ve.dm.LeafNode
* @constructor
* @param {number} [length] Length of content data in document; ignored and overridden to 0
* @param {Object} [element] Reference to element in linear model
*/
ve.dm.MetaNode = function VeDmMetaNode( length, element ) {
// Parent constructor
ve.dm.LeafNode.call( this, 0, element );
};
/* Inheritance */
ve.inheritClass( ve.dm.MetaNode, ve.dm.LeafNode );
/* Static Properties */
ve.dm.MetaNode.static.name = 'meta';
ve.dm.MetaNode.static.isMeta = true;
ve.dm.MetaNode.static.matchTagNames = [ 'meta', 'link' ];
ve.dm.MetaNode.static.toDataElement = function ( domElements, context ) {
var firstDomElement = domElements[0],
isLink = firstDomElement.nodeName.toLowerCase() === 'link',
keyAttr = isLink ? 'rel' : 'property',
valueAttr = isLink ? 'href' : 'content',
dataElement = {
'type': context.expectingContent ? 'metaInline' : 'metaBlock',
'attributes': {
'style': isLink ? 'link' : 'meta',
'key': firstDomElement.getAttribute( keyAttr )
}
};
if ( firstDomElement.hasAttribute( valueAttr ) ) {
dataElement.attributes.value = firstDomElement.getAttribute( valueAttr );
}
return dataElement;
};
ve.dm.MetaNode.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 ];
};
/* Concrete subclasses */
/**
* DataModel metaBlock node.
*
* @class
* @abstract
* @extends ve.dm.LeafNode
* @constructor
* @param {number} [length] Length of content data in document; ignored and overridden to 0
* @param {Object} [element] Reference to element in linear model
*/
ve.dm.MetaBlockNode = function VeDmMetaBlockNode( length, element ) {
// Parent constructor
ve.dm.MetaNode.call( this, length, element );
};
ve.inheritClass( ve.dm.MetaBlockNode, ve.dm.MetaNode );
ve.dm.MetaBlockNode.static.name = 'metaBlock';
ve.dm.MetaInlineNode = function VeDmMetaInlineNode( length, element ) {
// Parent constructor
ve.dm.MetaNode.call( this, length, element );
};
ve.inheritClass( ve.dm.MetaInlineNode, ve.dm.MetaNode );
ve.dm.MetaInlineNode.static.name = 'metaInline';
ve.dm.MetaInlineNode.static.isContent = true;
/* Registration */
ve.dm.modelRegistry.register( ve.dm.MetaNode );
ve.dm.modelRegistry.register( ve.dm.MetaBlockNode );
ve.dm.modelRegistry.register( ve.dm.MetaInlineNode );