mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/MultimediaViewer
synced 2024-09-29 21:28:12 +00:00
ead038c34f
Make sure it is easy to debug when one of the promises rejects (and causes the whole promise chain to fail). I'm not really happy with this, but still seemed better than adding the same boilerplate error logging code to each provider one-by-one. Change-Id: Idd2b638f012ef2ff250e350e2f6a60bb8b81899b Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/268
84 lines
3 KiB
JavaScript
84 lines
3 KiB
JavaScript
/*
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* This file is part of the MediaWiki extension MultimediaViewer.
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*
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* MultimediaViewer is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* MultimediaViewer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with MultimediaViewer. If not, see <http://www.gnu.org/licenses/>.
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*/
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( function ( mw, oo, $ ) {
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/**
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* Gets thumbnail information.
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* See https://www.mediawiki.org/wiki/API:Properties#imageinfo_.2F_ii
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* @class mw.mmv.provider.ThumbnailInfo
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* @extends mw.mmv.provider.Api
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* @constructor
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* @param {mw.Api} api
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*/
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function ThumbnailInfo( api ) {
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mw.mmv.provider.Api.call( this, api );
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}
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oo.inheritClass( ThumbnailInfo, mw.mmv.provider.Api );
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/**
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* Runs an API GET request to get the thumbnail info for the specified size.
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* The thumbnail always has the same aspect ratio as the full image.
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* One of width or height can be null; if both are set, the API will return the largest
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* thumbnail which fits into a width x height bounding box (or the full-sized image - whichever
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* is smaller).
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* @param {mw.Title} file
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* @param {number} width thumbnail width in pixels
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* @param {number} height thumbnail height in pixels
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* @return {jQuery.Promise.<mw.mmv.model.Thumbnail>}
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*/
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ThumbnailInfo.prototype.get = function( file, width, height ) {
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var provider = this,
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cacheKey = file.getPrefixedDb() + '|' + ( width || '' ) + '|' + ( height || '' );
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return this.getCachedPromise( cacheKey, function () {
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return provider.api.get( {
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action: 'query',
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prop: 'imageinfo',
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titles: file.getPrefixedDb(),
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iiprop: 'url',
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iiurlwidth: width, // mw.Api will omit null/undefined parameters
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iiurlheight: height,
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format: 'json'
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} ).then( function( data ) {
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return provider.getQueryPage( file, data );
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} ).then( function( page ) {
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if ( page.imageinfo && page.imageinfo[0] ) {
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var imageInfo = page.imageinfo[0];
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if ( imageInfo.thumburl && imageInfo.thumbwidth && imageInfo.thumbheight ) {
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return $.Deferred().resolve(
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new mw.mmv.model.Thumbnail(
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imageInfo.thumburl,
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imageInfo.thumbwidth,
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imageInfo.thumbheight
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)
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);
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} else {
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return $.Deferred().reject( 'error in provider, thumb info not found' );
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}
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} else if ( page.missing === '' && page.imagerepository === '' ) {
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return $.Deferred().reject( 'file does not exist: ' + file.getPrefixedDb() );
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} else {
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return $.Deferred().reject( 'unknown error' );
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}
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} );
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} );
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};
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mw.mmv.provider.ThumbnailInfo = ThumbnailInfo;
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}( mediaWiki, OO, jQuery ) );
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