mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/MultimediaViewer
synced 2024-12-21 04:12:52 +00:00
89 lines
3.2 KiB
JavaScript
89 lines
3.2 KiB
JavaScript
/*
|
|
* This file is part of the MediaWiki extension MultimediaViewer.
|
|
*
|
|
* MultimediaViewer is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* MultimediaViewer is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with MultimediaViewer. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
const Api = require( './mmv.provider.Api.js' );
|
|
const Thumbnail = require( '../model/mmv.model.Thumbnail.js' );
|
|
|
|
/**
|
|
* Gets thumbnail information.
|
|
*
|
|
* See https://www.mediawiki.org/wiki/API:Properties#imageinfo_.2F_ii
|
|
*/
|
|
class ThumbnailInfo extends Api {
|
|
/**
|
|
* @param {mw.Api} api
|
|
* @param {Object} [options]
|
|
* @param {number} [options.maxage] cache expiration time, in seconds
|
|
* Will be used for both client-side cache (maxage) and reverse proxies (s-maxage)
|
|
*/
|
|
constructor( api, options ) {
|
|
super( api, options );
|
|
}
|
|
|
|
/**
|
|
* Runs an API GET request to get the thumbnail info for the specified size.
|
|
* The thumbnail always has the same aspect ratio as the full image.
|
|
* One of width or height can be null; if both are set, the API will return the largest
|
|
* thumbnail which fits into a width x height bounding box (or the full-sized image - whichever
|
|
* is smaller).
|
|
*
|
|
* @param {mw.Title} file
|
|
* @param {string} sampleUrl a thumbnail URL for the same file (but with different size).
|
|
* @param {number} width thumbnail width in pixels
|
|
* @param {number} height thumbnail height in pixels
|
|
* @return {jQuery.Promise.<Thumbnail>}
|
|
*/
|
|
get( file, sampleUrl, width, height ) {
|
|
const match = sampleUrl.match( /(lang|page)([\d\-a-z]+)-(\d+)px/ ); // multi lingual SVG or PDF page
|
|
const iiurlparam = match ? `${ match[ 1 ] }${ match[ 2 ] }-${ width }px` : undefined;
|
|
const cacheKey = [ file.getPrefixedDb(), width || '', height || '', iiurlparam || '' ].join();
|
|
|
|
return this.getCachedPromise( cacheKey, () => this.apiGetWithMaxAge( {
|
|
formatversion: 2,
|
|
action: 'query',
|
|
prop: 'imageinfo',
|
|
titles: file.getPrefixedDb(),
|
|
iiprop: 'url',
|
|
iiurlparam,
|
|
iiurlwidth: width,
|
|
iiurlheight: height
|
|
} ).then( ( data ) => this.getQueryPage( data ) ).then( ( page ) => {
|
|
let imageInfo;
|
|
if ( page.imageinfo && page.imageinfo[ 0 ] ) {
|
|
imageInfo = page.imageinfo[ 0 ];
|
|
if ( imageInfo.thumburl && imageInfo.thumbwidth && imageInfo.thumbheight ) {
|
|
return $.Deferred().resolve(
|
|
new Thumbnail(
|
|
imageInfo.thumburl,
|
|
imageInfo.thumbwidth,
|
|
imageInfo.thumbheight
|
|
)
|
|
);
|
|
} else {
|
|
return $.Deferred().reject( 'error in provider, thumb info not found' );
|
|
}
|
|
} else if ( page.missing === true && page.imagerepository === '' ) {
|
|
return $.Deferred().reject( `file does not exist: ${ file.getPrefixedDb() }` );
|
|
} else {
|
|
return $.Deferred().reject( 'unknown error' );
|
|
}
|
|
} ) );
|
|
}
|
|
}
|
|
|
|
module.exports = ThumbnailInfo;
|