rollback.js
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rollback.js
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	/*!
	* JavaScript for:
	* - rollback confirmation prompt
	* - firing the postEdit hook upon a successful rollback edit
	*/
	( function () {
	// If a rollback was successful, RollbackAction.php will export wgRollbackSuccess
	const wgRollbackSuccess = mw.config.get( 'wgRollbackSuccess' );
	if ( wgRollbackSuccess ) {
	mw.loader.using( 'mediawiki.action.view.postEdit', () => {
	// wgCurRevisionId is set to the revision of the rollback
	// in OutputPage::getJSVars. wgRevisionId is 0, since we're looking at
	// the success page for the rollback and not the content of the page.
	// It might make sense to display a success message in a toast, like other
	// implementations of the postEdit hook, but for now we just want to
	// enable code that relies on postEdit firing to know that an edit
	// was made.
	mw.hook( 'postEdit' ).fire();
	} );
	}

	if ( Number( mw.user.options.get( 'showrollbackconfirmation' ) ) !== 1 ) {
	// Support both 1 or "1" (T54542)
	return;
	}

	function postRollback( url ) {
	$( '<form>' )
	.attr( {
	action: url,
	method: 'post'
	} )
	.appendTo( document.body )
	.trigger( 'submit' );
	}

	$( '#mw-content-text' ).confirmable( {
	i18n: {
	confirm: mw.msg( 'rollback-confirmation-confirm' ),
	yes: mw.msg( 'rollback-confirmation-yes' ),
	no: mw.msg( 'rollback-confirmation-no' )
	},
	delegate: '.mw-rollback-link a[data-mw="interface"]',
	handler: function ( e ) {
	e.preventDefault();
	postRollback( $( this ).attr( 'href' ) );
	}
	} );

	}() );