mediawiki-extensions-Visual.../modules/ve/dm/nodes/ve.dm.MWTemplateNode.js

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/*!
* VisualEditor DataModel MWTemplateNode class.
*
* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* DataModel MediaWiki template node.
*
* @class
* @abstract
* @extends ve.dm.LeafNode
* @mixins ve.dm.GeneratedContentNode
*
* @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.MWTemplateNode = function VeDmMWTemplateNode( length, element ) {
// Parent constructor
ve.dm.LeafNode.call( this, 0, element );
// Mixin constructors
ve.dm.GeneratedContentNode.call( this );
};
/* Inheritance */
ve.inheritClass( ve.dm.MWTemplateNode, ve.dm.LeafNode );
ve.mixinClass( ve.dm.MWTemplateNode, ve.dm.GeneratedContentNode );
/* Static members */
ve.dm.MWTemplateNode.static.name = 'mwTemplate';
ve.dm.MWTemplateNode.static.matchTagNames = null;
ve.dm.MWTemplateNode.static.matchRdfaTypes = [
'mw:Object/Template',
// We're interested in all nodes that have mw:Object/Template, even if they also have other mw:
// types. So we match all mw: types, then use a matchFunction to assert that mw:Object/Template
// is in there.
/^mw:/
];
ve.dm.MWTemplateNode.static.matchFunction = function ( domElement ) {
return ve.indexOf( 'mw:Object/Template',
( domElement.getAttribute( 'typeof' ) || '' ).split( ' ' )
) !== -1;
};
ve.dm.MWTemplateNode.static.getHashObject = function ( dataElement ) {
return {
type: dataElement.type,
mw: dataElement.attributes.mw
};
};
ve.dm.MWTemplateNode.static.toDataElement = function ( domElements, converter ) {
var dataElement,
mw = JSON.parse( domElements[0].getAttribute( 'data-mw' ) ),
isInline = this.isHybridInline( domElements, converter ),
type = isInline ? 'mwTemplateInline' : 'mwTemplateBlock';
dataElement = {
'type': type,
'attributes': {
'mw': mw,
'mwOriginal': ve.copyObject( mw )
}
};
this.storeDomElements( dataElement, domElements, converter.getStore() );
return dataElement;
};
ve.dm.MWTemplateNode.static.toDomElements = function ( dataElement, doc, converter ) {
var span, index;
if ( ve.compare( dataElement.attributes.mw, dataElement.attributes.mwOriginal ) ) {
// If the template is unchanged just send back the original dom elements so selser can skip over it
index = converter.getStore().indexOfHash( ve.getHash( this.getHashObject( dataElement ) ) );
// The object in the store is also used for rendering so return a copy
return ve.copyArray( converter.getStore().value( index ) );
} else {
span = doc.createElement( 'span' );
// All we need to send back to Parsoid is the original template marker,
// with a reconstructed data-mw property.
span.setAttribute( 'typeof', 'mw:Object/Template' );
span.setAttribute( 'data-mw', JSON.stringify( dataElement.attributes.mw ) );
return [ span ];
}
};
/**
* Escape a template parameter. Helper function for getWikitext().
* @param {string} param Parameter value
* @returns {string} Escaped parameter value
*/
ve.dm.MWTemplateNode.static.escapeParameter = function ( param ) {
var match, input = param, output = '', inNowiki = false;
while ( input.length > 0 ) {
match = input.match( /(?:\}\})+|\|+|<\/?nowiki>|<nowiki\s*\/>/ );
if ( !match ) {
output += input;
break;
}
output += input.substr( 0, match.index );
input = input.substr( match.index + match[0].length );
if ( inNowiki ) {
if ( match[0] === '</nowiki>' ) {
inNowiki = false;
output += match[0];
} else {
output += match[0];
}
} else {
if ( match[0] === '<nowiki>' ) {
inNowiki = true;
output += match[0];
} else if ( match[0] === '</nowiki>' || match[0].match( /<nowiki\s*\/>/ ) ) {
output += match[0];
} else {
output += '<nowiki>' + match[0] + '</nowiki>';
}
}
}
return output;
};
/* Methods */
/**
* Get the wikitext for this template invocation.
*
* @method
* @returns {string} Wikitext like `{{foo|1=bar|baz=quux}}`
*/
ve.dm.MWTemplateNode.prototype.getWikitext = function () {
var i, len, part, template, param,
content = this.getAttribute( 'mw' ),
wikitext = '';
// Normalize to multi template format
if ( content.params ) {
content = { 'parts': [ { 'template': content } ] };
}
// Build wikitext from content
for ( i = 0, len = content.parts.length; i < len; i++ ) {
part = content.parts[i];
if ( part.template ) {
// Template
template = part.template;
wikitext += '{{' + template.target.wt;
for ( param in template.params ) {
wikitext += '|' + param + '=' +
this.constructor.static.escapeParameter( template.params[param].wt );
}
wikitext += '}}';
} else {
// Plain wikitext
wikitext += part;
}
}
return wikitext;
};
/* Concrete subclasses */
/**
* DataModel MediaWiki template block node.
*
* @class
* @extends ve.dm.MWTemplateNode
* @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.MWTemplateBlockNode = function VeDmMWTemplateBlockNode( length, element ) {
// Parent constructor
ve.dm.MWTemplateNode.call( this, length, element );
};
ve.inheritClass( ve.dm.MWTemplateBlockNode, ve.dm.MWTemplateNode );
ve.dm.MWTemplateBlockNode.static.matchTagNames = [];
ve.dm.MWTemplateBlockNode.static.name = 'mwTemplateBlock';
/**
* DataModel MediaWiki template inline node.
*
* @class
* @extends ve.dm.MWTemplateNode
* @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.MWTemplateInlineNode = function VeDmMWTemplateInlineNode( length, element ) {
// Parent constructor
ve.dm.MWTemplateNode.call( this, length, element );
};
ve.inheritClass( ve.dm.MWTemplateInlineNode, ve.dm.MWTemplateNode );
ve.dm.MWTemplateInlineNode.static.matchTagNames = [];
ve.dm.MWTemplateInlineNode.static.name = 'mwTemplateInline';
ve.dm.MWTemplateInlineNode.static.isContent = true;
/* Registration */
ve.dm.modelRegistry.register( ve.dm.MWTemplateNode );
ve.dm.modelRegistry.register( ve.dm.MWTemplateBlockNode );
ve.dm.modelRegistry.register( ve.dm.MWTemplateInlineNode );