From 4b8833942c7edaf9d2bf5f1137100c1f86413cfc Mon Sep 17 00:00:00 2001
From: Rob Moen <rmoen@wikimedia.org>
Date: Wed, 20 Jun 2012 16:20:17 -0700
Subject: [PATCH] If user is anonymous, mw.page.watch is not loaded.  Only call
 method if module is loaded.

Change-Id: Ieb549b701f05f1dab322baa79d59366225f42727
---
 .../ve/init/targets/ve.init.ViewPageTarget.js | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/modules/ve/init/targets/ve.init.ViewPageTarget.js b/modules/ve/init/targets/ve.init.ViewPageTarget.js
index a4aa9323a1..516bf3ebc5 100644
--- a/modules/ve/init/targets/ve.init.ViewPageTarget.js
+++ b/modules/ve/init/targets/ve.init.ViewPageTarget.js
@@ -191,14 +191,17 @@ ve.init.ViewPageTarget.prototype.onSave = function( html ) {
 		// This is a page creation, refresh the page
 		window.location.href = this.viewUri;
 	} else {
-		// Update the watch link to match the state of 'watch checkbox' in save dialog
-		var watchPage = this.$saveDialog
-			.find( '#ve-init-viewPageTarget-saveDialog-watchList')
-			.prop( 'checked' );
-		mw.page.watch.updateWatchLink(
-			$('#ca-watch a, #ca-unwatch a'),
-			watchPage === true ? 'unwatch': 'watch'
-		);
+		// Update watch link to match 'watch checkbox' in save dialog.
+		// User logged in if module loaded.
+		if ( mw.page.watch !== undefined ) {
+			var watchPage = this.$saveDialog
+				.find( '#ve-init-viewPageTarget-saveDialog-watchList')
+				.prop( 'checked' );
+			mw.page.watch.updateWatchLink(
+				$('#ca-watch a, #ca-unwatch a'),
+				watchPage === true ? 'unwatch': 'watch'
+			);
+		}
 		this.hideSaveDialog();
 		this.resetSaveDialog();
 		this.replacePageContent( html );