mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-16 10:59:56 +00:00
420 lines
10 KiB
JavaScript
420 lines
10 KiB
JavaScript
/*!
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* VisualEditor DataModel MWTemplateModel class.
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*
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* @copyright 2011-2020 VisualEditor Team and others; see AUTHORS.txt
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* @license The MIT License (MIT); see LICENSE.txt
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*/
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/**
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* Represents a template invocation that's part of a (possibly unbalanced) sequence of template
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* invocations and raw wikitext snippets. Meant to be an item in a {@see ve.dm.MWTransclusionModel}.
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* Holds a back-reference to it's parent.
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*
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* Holds a reference to the specification of the template, i.e. how the template is documented via
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* TemplateData. The actual invocation might be entirely different, missing parameters as well as
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* containing undocumented ones.
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*
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* @class
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* @extends ve.dm.MWTransclusionPartModel
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*
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* @constructor
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* @param {ve.dm.MWTransclusionModel} transclusion Transclusion
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* @param {Object} target Template target
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* @param {string} target.wt Original wikitext of target
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* @param {string} [target.href] Hypertext reference to target
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*/
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ve.dm.MWTemplateModel = function VeDmMWTemplateModel( transclusion, target ) {
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// Parent constructor
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ve.dm.MWTemplateModel.super.call( this, transclusion );
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// Properties
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this.target = target;
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// TODO: Either here or in uses of this constructor we need to validate the title
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this.title = target.href ? mw.libs.ve.normalizeParsoidResourceName( target.href ) : null;
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this.sequence = null;
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this.params = {};
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this.spec = new ve.dm.MWTemplateSpecModel( this );
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this.originalData = null;
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};
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/* Inheritance */
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OO.inheritClass( ve.dm.MWTemplateModel, ve.dm.MWTransclusionPartModel );
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/* Events */
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/**
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* @event add
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* @param {ve.dm.MWParameterModel} param Added param
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*/
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/**
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* @event remove
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* @param {ve.dm.MWParameterModel} param Removed param
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*/
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/* Static Methods */
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/**
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* Create from data.
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*
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* Data is in the format provided by Parsoid.
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*
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* @param {ve.dm.MWTransclusionModel} transclusion Transclusion template is in
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* @param {Object} data Template data
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* @return {ve.dm.MWTemplateModel} New template model
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*/
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ve.dm.MWTemplateModel.newFromData = function ( transclusion, data ) {
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var key,
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template = new ve.dm.MWTemplateModel( transclusion, data.target );
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for ( key in data.params ) {
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template.addParameter(
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new ve.dm.MWParameterModel( template, key, data.params[ key ].wt )
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);
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}
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template.setOriginalData( data );
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return template;
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};
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/**
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* Create from name.
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*
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* Name is equivalent to what would be entered between double brackets, defaulting to the Template
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* namespace, using a leading colon to access other namespaces.
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*
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* @param {ve.dm.MWTransclusionModel} transclusion Transclusion template is in
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* @param {string|mw.Title} name Template name
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* @return {ve.dm.MWTemplateModel|null} New template model
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*/
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ve.dm.MWTemplateModel.newFromName = function ( transclusion, name ) {
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var href, title,
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templateNs = mw.config.get( 'wgNamespaceIds' ).template;
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if ( name instanceof mw.Title ) {
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title = name;
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name = title.getRelativeText( templateNs );
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} else {
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title = mw.Title.newFromText( name, templateNs );
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}
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if ( title !== null ) {
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href = title.getPrefixedText();
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return new ve.dm.MWTemplateModel( transclusion, { href: href, wt: name } );
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}
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return null;
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};
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/* Methods */
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/**
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* Get template target.
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*
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* @return {Object} Template target
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*/
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ve.dm.MWTemplateModel.prototype.getTarget = function () {
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return this.target;
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};
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/**
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* Get template title.
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*
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* @return {string|null} Template title, if available
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*/
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ve.dm.MWTemplateModel.prototype.getTitle = function () {
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return this.title;
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};
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/**
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* Get template specification.
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*
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* @return {ve.dm.MWTemplateSpecModel} Template specification
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*/
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ve.dm.MWTemplateModel.prototype.getSpec = function () {
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return this.spec;
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};
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/**
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* Get all params.
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*
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* @return {Object.<string,ve.dm.MWParameterModel>} Parameters keyed by name
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*/
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ve.dm.MWTemplateModel.prototype.getParameters = function () {
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return this.params;
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};
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/**
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* Get a parameter.
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*
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* @param {string} name Parameter name
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* @return {ve.dm.MWParameterModel} Parameter
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*/
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ve.dm.MWTemplateModel.prototype.getParameter = function ( name ) {
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return this.params[ name ];
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};
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/**
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* Check if a parameter exists.
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*
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* @param {string} name Parameter name
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* @return {boolean} Parameter exists
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*/
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ve.dm.MWTemplateModel.prototype.hasParameter = function ( name ) {
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var i, len, primaryName, names;
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// Check if name (which may be an alias) is present in the template
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if ( this.params[ name ] ) {
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return true;
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}
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// Check if the name is known at all
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if ( this.spec.isParameterKnown( name ) ) {
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primaryName = this.spec.getParameterName( name );
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// Check for primary name (may be the same as name)
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if ( this.params[ primaryName ] ) {
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return true;
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}
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// Check for other aliases (may include name)
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names = this.spec.getParameterAliases( primaryName );
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for ( i = 0, len = names.length; i < len; i++ ) {
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if ( this.params[ names[ i ] ] ) {
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return true;
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}
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}
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}
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return false;
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};
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/**
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* Get ordered list of parameter names.
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*
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* Numeric names, whether strings or real numbers, are placed at the beginning, followed by
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* alphabetically sorted names.
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*
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* @return {string[]} List of parameter names
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*/
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ve.dm.MWTemplateModel.prototype.getParameterNames = function () {
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var i, len, index, paramOrder, paramNames;
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if ( !this.sequence ) {
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paramOrder = this.spec.getParameterOrder();
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paramNames = Object.keys( this.params );
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this.sequence = [];
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// Known parameters first
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for ( i = 0, len = paramOrder.length; i < len; i++ ) {
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index = paramNames.indexOf( paramOrder[ i ] );
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if ( index !== -1 ) {
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this.sequence.push( paramOrder[ i ] );
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paramNames.splice( index, 1 );
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}
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}
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// Unknown parameters in alpha-numeric order second, empty string at the very end
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paramNames.sort( function ( a, b ) {
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var aIsNaN = isNaN( a ),
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bIsNaN = isNaN( b );
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if ( a === '' ) {
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return 1;
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}
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if ( b === '' ) {
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return -1;
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}
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if ( aIsNaN && bIsNaN ) {
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// Two strings
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return a < b ? -1 : a === b ? 0 : 1;
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}
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if ( aIsNaN ) {
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// A is a string
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return 1;
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}
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if ( bIsNaN ) {
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// B is a string
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return -1;
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}
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// Two numbers
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return a - b;
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} );
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ve.batchPush( this.sequence, paramNames );
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}
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return this.sequence;
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};
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/**
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* Get parameter from its ID.
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*
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* @param {string} id Parameter ID
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* @return {ve.dm.MWParameterModel|null} Parameter with matching ID, null if no parameters match
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*/
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ve.dm.MWTemplateModel.prototype.getParameterFromId = function ( id ) {
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var name;
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for ( name in this.params ) {
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if ( this.params[ name ].getId() === id ) {
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return this.params[ name ];
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}
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}
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return null;
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};
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/**
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* Add a parameter to template.
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*
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* @param {ve.dm.MWParameterModel} param Parameter to add
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* @fires add
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*/
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ve.dm.MWTemplateModel.prototype.addParameter = function ( param ) {
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var name = param.getName();
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this.sequence = null;
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this.params[ name ] = param;
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this.spec.fillFromTemplate();
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param.connect( this, { change: [ 'emit', 'change' ] } );
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this.emit( 'add', param );
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this.emit( 'change' );
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};
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/**
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* Remove parameter from template.
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*
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* @param {ve.dm.MWParameterModel} param Parameter to remove
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* @fires remove
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*/
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ve.dm.MWTemplateModel.prototype.removeParameter = function ( param ) {
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if ( param ) {
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this.sequence = null;
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delete this.params[ param.getName() ];
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param.disconnect( this );
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this.emit( 'remove', param );
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this.emit( 'change' );
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}
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};
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/**
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* @inheritdoc
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*/
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ve.dm.MWTemplateModel.prototype.addPromptedParameters = function () {
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var i, len, name, j, aliases, aliasLen, foundAlias,
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addedCount = 0,
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spec = this.getSpec(),
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names = spec.getParameterNames();
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for ( i = 0, len = names.length; i < len; i++ ) {
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name = names[ i ];
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aliases = spec.getParameterAliases( name );
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foundAlias = false;
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for ( j = 0, aliasLen = aliases.length; j < aliasLen; j++ ) {
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if ( Object.prototype.hasOwnProperty.call( this.params, aliases[ j ] ) ) {
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foundAlias = true;
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break;
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}
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}
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if (
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!foundAlias &&
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!this.params[ name ] &&
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(
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spec.isParameterRequired( name ) ||
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spec.isParameterSuggested( name )
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)
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) {
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this.addParameter( new ve.dm.MWParameterModel( this, names[ i ] ) );
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addedCount++;
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}
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}
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return addedCount;
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};
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/**
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* Set original data, to be used as a base for serialization.
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*
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* @param {Object} data Original data
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*/
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ve.dm.MWTemplateModel.prototype.setOriginalData = function ( data ) {
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this.originalData = data;
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};
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/**
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* @inheritdoc
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*/
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ve.dm.MWTemplateModel.prototype.serialize = function () {
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var name, origName,
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origData = this.originalData || {},
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origParams = origData.params || {},
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template = { target: this.getTarget(), params: {} },
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spec = this.getSpec(),
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params = this.getParameters();
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for ( name in params ) {
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if ( name === '' ) {
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continue;
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}
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if (
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// Don't add empty parameters (T101075)
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params[ name ].getValue() === '' &&
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// …unless they were present before the edit
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!Object.prototype.hasOwnProperty.call( origParams, name ) &&
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// …unless they are required (T276989)
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!( spec.isParameterKnown( name ) && spec.isParameterRequired( name ) )
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) {
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continue;
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}
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origName = params[ name ].getOriginalName();
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template.params[ origName ] = ve.extendObject(
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{},
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origParams[ origName ],
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{ wt: params[ name ].getValue() }
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);
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}
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// Performs a non-deep extend, so this won't reintroduce
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// deleted parameters (T75134)
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template = ve.extendObject( {}, origData, template );
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return { template: template };
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};
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/**
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* @inheritdoc
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*/
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ve.dm.MWTemplateModel.prototype.getWikitext = function () {
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var param,
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wikitext = this.getTarget().wt,
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params = this.getParameters();
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for ( param in params ) {
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if ( param === '' ) {
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continue;
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}
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wikitext += '|' + param + '=' +
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ve.dm.MWTransclusionNode.static.escapeParameter( params[ param ].getValue() );
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}
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return '{{' + wikitext + '}}';
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};
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/**
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* @inheritDoc
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*/
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ve.dm.MWTemplateModel.prototype.isEmpty = function () {
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var params = this.getParameters();
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return Object.keys( params ).every( function ( name ) {
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// There is always an unnamed placeholder at the start
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if ( !name ) {
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return true;
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}
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var param = params[ name ];
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var value = param.getValue();
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// Check that the value has not been set, or is indistinguishable from
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// the automatically-set value. See `MWParameterModel.getValue`
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return value === '' || value === param.getAutoValue();
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} );
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};
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