mediawiki-extensions-Relate.../resources/ext.relatedArticles.readMore.bootstrap/RelatedPagesGateway.js
Jon Robson 911d78e8ee [organization] organize file by module
Follow up to I9442b0336e22ca795cc06f76068215266fe81271

Bug: T306228
Change-Id: Ifb1f1937009b098999471cfa5e820a063dc5a4a0
2022-04-18 08:37:22 -07:00

128 lines
3.8 KiB
JavaScript

/**
* @class RelatedPagesGateway
* @param {mw.Api} api
* @param {string} currentPage the page that the editorCuratedPages relate to
* @param {Array|null} editorCuratedPages a list of pages curated by editors for the current page
* @param {boolean} useCirrusSearch whether to hit the API when no editor-curated pages are available
* @param {boolean} [onlyUseCirrusSearch=false] whether to ignore the list of editor-curated pages
* @param {boolean|string} [descriptionSource=false] source to get the page description from
*/
function RelatedPagesGateway(
api,
currentPage,
editorCuratedPages,
useCirrusSearch,
onlyUseCirrusSearch,
descriptionSource
) {
this.api = api;
this.currentPage = currentPage;
this.useCirrusSearch = useCirrusSearch;
this.descriptionSource = descriptionSource;
if ( onlyUseCirrusSearch ) {
editorCuratedPages = [];
}
this.editorCuratedPages = editorCuratedPages || [];
}
OO.initClass( RelatedPagesGateway );
/**
* @ignore
* @param {Object} result
* @return {Array}
*/
function getPages( result ) {
return result && result.query && result.query.pages ? result.query.pages : [];
}
/**
* Gets the related pages for the current page.
*
* If there are related pages assigned to this page using the `related`
* parser function, then they are returned.
*
* If there aren't any related pages assigned to the page, then the
* CirrusSearch extension's {@link https://www.mediawiki.org/wiki/Help:CirrusSearch#morelike: "morelike:" feature}
* is used. If the CirrusSearch extension isn't installed, then the API
* call will fail gracefully and no related pages will be returned.
* Thus the dependency on the CirrusSearch extension is soft.
*
* Related pages will have the following information:
*
* * The ID of the page corresponding to the title
* * The thumbnail, if any
* * The page description, if any
*
* @method
* @param {number} limit of pages to get. Should be between 1-20.
* @return {jQuery.Promise}
*/
RelatedPagesGateway.prototype.getForCurrentPage = function ( limit ) {
var parameters = {
action: 'query',
formatversion: 2,
prop: 'pageimages',
piprop: 'thumbnail',
pithumbsize: 160 // FIXME: Revert to 80 once pithumbmode is implemented
},
// Enforce limit
relatedPages = this.editorCuratedPages.slice( 0, limit );
switch ( this.descriptionSource ) {
case 'wikidata':
parameters.prop += '|description';
break;
case 'textextracts':
parameters.prop += '|extracts';
parameters.exsentences = '1';
parameters.exintro = '1';
parameters.explaintext = '1';
break;
case 'pagedescription':
parameters.prop += '|pageprops';
parameters.ppprop = 'description';
break;
}
if ( relatedPages.length ) {
parameters.pilimit = relatedPages.length;
parameters.continue = '';
parameters.titles = relatedPages;
} else if ( this.useCirrusSearch ) {
parameters.pilimit = limit;
parameters.generator = 'search';
parameters.gsrsearch = 'morelike:' + this.currentPage;
parameters.gsrnamespace = '0';
parameters.gsrlimit = limit;
parameters.gsrqiprofile = 'classic_noboostlinks';
// Currently, if you're logged in, then the API uses your language by default ard so responses
// are always private i.e. they shouldn't be cached in a shared cache and can be cached by the
// browser.
//
// By make the API use the language of the content rather than that of the user, the API
// reponse is made public, i.e. they can be cached in a shared cache.
//
// See T97096 for more detail and discussion.
parameters.uselang = 'content';
// Instruct shared caches that the response will become stale in 24 hours.
parameters.smaxage = 86400;
// Instruct the browser that the response will become stale in 24 hours.
parameters.maxage = 86400;
} else {
return $.Deferred().resolve( [] );
}
return this.api.get( parameters )
.then( getPages );
};
module.exports = RelatedPagesGateway;