1 files changed, 89 insertions, 0 deletions
diff --git a/www/wiki/extensions/MultimediaViewer/resources/mmv/provider/mmv.provider.ThumbnailInfo.js b/www/wiki/extensions/MultimediaViewer/resources/mmv/provider/mmv.provider.ThumbnailInfo.js
new file mode 100644
index 00000000..45b6cdef
--- /dev/null
+++ b/www/wiki/extensions/MultimediaViewer/resources/mmv/provider/mmv.provider.ThumbnailInfo.js
@@ -0,0 +1,89 @@
+/*
+ * 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/>.
+ */
+
+( function ( mw, oo, $ ) {
+
+	/**
+	 * Gets thumbnail information.
+	 *
+	 * See https://www.mediawiki.org/wiki/API:Properties#imageinfo_.2F_ii
+	 *
+	 * @class mw.mmv.provider.ThumbnailInfo
+	 * @extends mw.mmv.provider.Api
+	 * @constructor
+	 * @param {mw.Api} api
+	 * @param {Object} [options]
+	 * @cfg {number} [maxage] cache expiration time, in seconds
+	 *  Will be used for both client-side cache (maxage) and reverse proxies (s-maxage)
+	 */
+	function ThumbnailInfo( api, options ) {
+		mw.mmv.provider.Api.call( this, api, options );
+	}
+	oo.inheritClass( ThumbnailInfo, mw.mmv.provider.Api );
+
+	/**
+	 * 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 {number} width thumbnail width in pixels
+	 * @param {number} height thumbnail height in pixels
+	 * @return {jQuery.Promise.<mw.mmv.model.Thumbnail>}
+	 */
+	ThumbnailInfo.prototype.get = function ( file, width, height ) {
+		var provider = this,
+			cacheKey = file.getPrefixedDb() + '|' + ( width || '' ) + '|' + ( height || '' );
+
+		return this.getCachedPromise( cacheKey, function () {
+			return provider.apiGetWithMaxAge( {
+				action: 'query',
+				prop: 'imageinfo',
+				titles: file.getPrefixedDb(),
+				iiprop: 'url',
+				iiurlwidth: width, // mw.Api will omit null/undefined parameters
+				iiurlheight: height
+			} ).then( function ( data ) {
+				return provider.getQueryPage( file, data );
+			} ).then( function ( page ) {
+				var imageInfo;
+				if ( page.imageinfo && page.imageinfo[ 0 ] ) {
+					imageInfo = page.imageinfo[ 0 ];
+					if ( imageInfo.thumburl && imageInfo.thumbwidth && imageInfo.thumbheight ) {
+						return $.Deferred().resolve(
+							new mw.mmv.model.Thumbnail(
+								imageInfo.thumburl,
+								imageInfo.thumbwidth,
+								imageInfo.thumbheight
+							)
+						);
+					} else {
+						return $.Deferred().reject( 'error in provider, thumb info not found' );
+					}
+				} else if ( page.missing === '' && page.imagerepository === '' ) {
+					return $.Deferred().reject( 'file does not exist: ' + file.getPrefixedDb() );
+				} else {
+					return $.Deferred().reject( 'unknown error' );
+				}
+			} );
+		} );
+	};
+
+	mw.mmv.provider.ThumbnailInfo = ThumbnailInfo;
+}( mediaWiki, OO, jQuery ) );