MediaWiki:Common.js/pagediff.js

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if ( typeof pagediff == 'undefined' ) { // Guard against double inclusions

	var pagediff = {

		callback: function( jsonobj ) {
			if ( jsonobj && jsonobj.query ) {
				var revid1 = 0;
				var revid2 = 0;
				for ( var page in jsonobj.query.pages ) {
					var p = jsonobj.query.pages[page];
					if ( !revid1 ) {
						revid1 = p.revisions[0].revid;
					} else {
						revid2 = p.revisions[0].revid;
					}
				}
			}
			location.href = mw.config.get('wgScript') + '?title=' + mw.util.wikiUrlencode( 'User:Thesevenseas/Pagediff'  ) + '&oldid=' + revid1 + '&diff=' + revid2;
		},
		setup: function() {
			var page1 = mw.util.getParamValue( 'oldpage' );
			var page2 = mw.util.getParamValue( 'newpage' );
			mw.loader.load( mw.config.get('wgServer') + wgScriptPath + '/api.php?format=json&action=query&prop=revisions&rvprop=ids&titles=' +
				encodeURIComponent( page1 ) + '|' + encodeURIComponent( page2 ) +
				'&callback=pagediff.callback' );
		}
	};
	pagediff.setup();
}