mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-09-26 19:56:49 +00:00
ea274c94cd
This allows the use of the preload and preloadparams query parameters. They should behave as they do in the old editor, loading substituted content in visual and source modes. Bug: T51622 Change-Id: I522fb5b480d17912f6d6116be6aa043ead855b52
298 lines
9.9 KiB
JavaScript
298 lines
9.9 KiB
JavaScript
/*!
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* VisualEditor MediaWiki ArticleTargetLoader.
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*
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* @copyright 2011-2017 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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* Target loader.
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*
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* Light-weight loader that loads ResourceLoader modules for VisualEditor
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* and HTML and page data from the API. Also handles plugin registration.
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*
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* @class mw.libs.ve.targetLoader
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* @singleton
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*/
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( function () {
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var prefName, prefValue,
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uri = new mw.Uri(),
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conf = mw.config.get( 'wgVisualEditorConfig' ),
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pluginCallbacks = [],
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modules = [ 'ext.visualEditor.articleTarget' ]
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// Add modules from $wgVisualEditorPluginModules
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.concat( conf.pluginModules.filter( mw.loader.getState ) );
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// Provide the new wikitext editor
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if (
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conf.enableWikitext &&
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(
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mw.user.options.get( 'visualeditor-newwikitext' ) ||
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uri.query.veaction === 'editsource'
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) &&
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mw.loader.getState( 'ext.visualEditor.mwwikitext' )
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) {
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modules.push( 'ext.visualEditor.mwwikitext' );
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}
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// Allow signing posts in select namespaces
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if ( conf.signatureNamespaces.length ) {
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modules.push( 'ext.visualEditor.mwsignature' );
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}
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// Add preference modules
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for ( prefName in conf.preferenceModules ) {
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prefValue = mw.user.options.get( prefName );
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// Check "0" (T89513)
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if ( prefValue && prefValue !== '0' ) {
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modules.push( conf.preferenceModules[ prefName ] );
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}
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}
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mw.libs.ve = mw.libs.ve || {};
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mw.libs.ve.targetLoader = {
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/**
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* Add a plugin module or callback.
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*
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* If a module name is passed, that module will be loaded alongside the other modules.
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*
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* If a callback is passed, it will be executed after the modules have loaded. The callback
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* may optionally return a jQuery.Promise; if it does, loading won't be complete until
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* that promise is resolved.
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*
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* @param {string|Function} plugin Plugin module name or callback
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*/
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addPlugin: function ( plugin ) {
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if ( typeof plugin === 'string' ) {
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modules.push( plugin );
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} else if ( $.isFunction( plugin ) ) {
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pluginCallbacks.push( plugin );
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}
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},
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/**
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* Load modules needed for VisualEditor, as well as plugins.
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*
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* This loads the base VE modules as well as any registered plugin modules.
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* Once those are loaded, any registered plugin callbacks are executed,
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* and we wait for all promises returned by those callbacks to resolve.
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*
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* @return {jQuery.Promise} Promise resolved when the loading process is complete
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*/
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loadModules: function () {
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ve.track( 'trace.moduleLoad.enter' );
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return mw.loader.using( modules )
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.then( function () {
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ve.track( 'trace.moduleLoad.exit' );
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pluginCallbacks.push( ve.init.platform.getInitializedPromise.bind( ve.init.platform ) );
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// Execute plugin callbacks and collect promises
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return $.when.apply( $, pluginCallbacks.map( function ( callback ) {
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return callback();
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} ) );
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} );
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},
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/**
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* Request the page data and various metadata from the MediaWiki API (which will use
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* Parsoid or RESTBase).
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*
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* @param {string} mode Target mode: 'visual' or 'source'
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* @param {string} pageName Page name to request
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* @param {Object} [options] Options
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* @param {number|string} [options.section] Section to edit, number or 'new' (currently just source mode)
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* @param {number} [options.oldId] Old revision ID. Current if omitted.
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* @param {string} [options.targetName] Optional target name for tracking
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* @param {boolean} [options.modified] The page was been modified before loading (e.g. in source mode)
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* @param {string} [options.wikitext] Wikitext to convert to HTML. The original document is fetched if undefined.
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* @param {string} [preload] Name of a page to use as preloaded content if pageName is empty
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* @param {Array} [preloadparams] Parameters to substitute into preload if it's used
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* @return {jQuery.Promise} Abortable promise resolved with a JSON object
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*/
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requestPageData: function ( mode, pageName, options ) {
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if ( mode === 'source' ) {
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return this.requestWikitext( pageName, options );
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} else {
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return this.requestParsoidData( pageName, options );
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}
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},
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/**
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* Request the page HTML and various metadata from the MediaWiki API (which will use
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* Parsoid or RESTBase).
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*
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* @param {string} pageName See #requestPageData
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* @param {Object} [options] See #requestPageData
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* @return {jQuery.Promise} Abortable promise resolved with a JSON object
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*/
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requestParsoidData: function ( pageName, options ) {
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var start, apiXhr, restbaseXhr, apiPromise, restbasePromise, dataPromise, pageHtmlUrl, headers,
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switched = false,
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fromEditedState = false,
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data = {
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action: 'visualeditor',
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paction: ( conf.fullRestbaseUrl || conf.restbaseUrl ) ? 'metadata' : 'parse',
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page: pageName,
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uselang: mw.config.get( 'wgUserLanguage' ),
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editintro: uri.query.editintro,
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preload: options.preload,
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preloadparams: options.preloadparams
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};
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options = options || {};
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// Only request the API to explicitly load the currently visible revision if we're restoring
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// from oldid. Otherwise we should load the latest version. This prevents us from editing an
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// old version if an edit was made while the user was viewing the page and/or the user is
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// seeing (slightly) stale cache.
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if ( options.oldId !== undefined ) {
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data.oldid = options.oldId;
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}
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// Load DOM
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start = ve.now();
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ve.track( 'trace.apiLoad.enter' );
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apiXhr = new mw.Api().get( data );
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apiPromise = apiXhr.then( function ( data, jqxhr ) {
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ve.track( 'trace.apiLoad.exit' );
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ve.track( 'mwtiming.performance.system.apiLoad', {
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bytes: $.byteLength( jqxhr.responseText ),
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duration: ve.now() - start,
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cacheHit: /hit/i.test( jqxhr.getResponseHeader( 'X-Cache' ) ),
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targetName: options.targetName
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} );
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return data;
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} );
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if ( conf.fullRestbaseUrl || conf.restbaseUrl ) {
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ve.track( 'trace.restbaseLoad.enter' );
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// Should be synchronised with ApiVisualEditor.php
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headers = {
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Accept: 'text/html; charset=utf-8; profile="mediawiki.org/specs/html/1.2.0"',
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'Api-User-Agent': 'VisualEditor-MediaWiki/' + mw.config.get( 'wgVersion' )
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};
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// Convert specified Wikitext to HTML
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if (
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// wikitext can be an empty string
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options.wikitext !== undefined &&
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!$( '[name=wpSection]' ).val()
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) {
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if ( conf.fullRestbaseUrl ) {
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pageHtmlUrl = conf.fullRestbaseUrl + 'v1/transform/wikitext/to/html/';
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} else {
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pageHtmlUrl = conf.restbaseUrl.replace( 'v1/page/html/', 'v1/transform/wikitext/to/html/' );
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}
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switched = true;
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fromEditedState = options.modified;
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window.onbeforeunload = null;
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$( window ).off( 'beforeunload' );
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restbaseXhr = $.ajax( {
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url: pageHtmlUrl + encodeURIComponent( pageName ) +
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( data.oldid === undefined ? '' : '/' + data.oldid ),
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type: 'POST',
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data: {
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title: pageName,
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oldid: data.oldid,
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wikitext: options.wikitext,
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stash: 'true'
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},
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headers: headers,
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dataType: 'text'
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} );
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} else {
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// Fetch revision
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if ( conf.fullRestbaseUrl ) {
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pageHtmlUrl = conf.fullRestbaseUrl + 'v1/page/html/';
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} else {
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pageHtmlUrl = conf.restbaseUrl;
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}
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restbaseXhr = $.ajax( {
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url: pageHtmlUrl + encodeURIComponent( pageName ) +
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( data.oldid === undefined ? '' : '/' + data.oldid ) + '?redirect=false',
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type: 'GET',
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headers: headers,
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dataType: 'text'
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} );
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}
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restbasePromise = restbaseXhr.then(
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function ( data, status, jqxhr ) {
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ve.track( 'trace.restbaseLoad.exit' );
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ve.track( 'mwtiming.performance.system.restbaseLoad', {
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bytes: $.byteLength( jqxhr.responseText ),
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duration: ve.now() - start,
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targetName: options.targetName
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} );
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return [ data, jqxhr.getResponseHeader( 'etag' ) ];
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},
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function ( xhr, code, _ ) {
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if ( xhr.status === 404 ) {
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// Page does not exist, so let the user start with a blank document.
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return $.Deferred().resolve( [ '', undefined ] ).promise();
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} else {
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mw.log.warn( 'RESTBase load failed: ' + xhr.statusText );
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return $.Deferred().reject( code, xhr, _ ).promise();
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}
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}
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);
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dataPromise = $.when( apiPromise, restbasePromise )
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.then( function ( apiData, restbaseData ) {
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if ( apiData.visualeditor ) {
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if ( restbaseData[ 0 ] || !apiData.visualeditor.content ) {
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// If we have actual content loaded, use it.
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// Otherwise, allow fallback content if present.
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// If no fallback content, this will give us an empty string for
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// content, which is desirable.
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apiData.visualeditor.content = restbaseData[ 0 ];
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apiData.visualeditor.etag = restbaseData[ 1 ];
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}
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apiData.visualeditor.switched = switched;
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apiData.visualeditor.fromEditedState = fromEditedState;
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}
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return apiData;
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} )
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.promise( { abort: function () {
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apiXhr.abort();
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restbaseXhr.abort();
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} } );
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} else {
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dataPromise = apiPromise.promise( { abort: apiXhr.abort } );
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}
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return dataPromise;
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},
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/**
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* Request the page wikitext and various metadata from the MediaWiki API.
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*
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* @param {string} pageName See #requestPageData
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* @param {Object} [options] See #requestPageData
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* @return {jQuery.Promise} Abortable promise resolved with a JSON object
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*/
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requestWikitext: function ( pageName, options ) {
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var data = {
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action: 'visualeditor',
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paction: 'wikitext',
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page: pageName,
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uselang: mw.config.get( 'wgUserLanguage' ),
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editintro: uri.query.editintro,
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preload: options.preload,
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preloadparams: options.preloadparams
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};
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// section should never really be undefined, but check just in case
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if ( options.section !== null && options.section !== undefined ) {
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data.section = options.section;
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}
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if ( options.oldId !== undefined ) {
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data.oldid = options.oldId;
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}
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return new mw.Api().get( data );
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}
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};
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}() );
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