From d154cb552692e2cf009dacedf488b95f1478d028 Mon Sep 17 00:00:00 2001
From: Mark Holmquist <mtraceur@member.fsf.org>
Date: Fri, 1 Aug 2014 11:49:48 -0700
Subject: [PATCH] Add window close warning to Special:Upload

Change-Id: I43bf828654d342893a19656ddd4151c2558d2f63
---
 resources/Resources.php                       |  1 +
 .../mediawiki.special.upload.js               | 26 +++++++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/resources/Resources.php b/resources/Resources.php
index a82260c09f..56032164be 100644
--- a/resources/Resources.php
+++ b/resources/Resources.php
@@ -1344,6 +1344,7 @@ return array(
 			'mediawiki.libs.jpegmeta',
 			'mediawiki.Title',
 			'mediawiki.util',
+			'mediawiki.confirmCloseWindow',
 		),
 	),
 	'mediawiki.special.userlogin.common.styles' => array(
diff --git a/resources/src/mediawiki.special/mediawiki.special.upload.js b/resources/src/mediawiki.special/mediawiki.special.upload.js
index 286befcc6d..04bc97879d 100644
--- a/resources/src/mediawiki.special/mediawiki.special.upload.js
+++ b/resources/src/mediawiki.special/mediawiki.special.upload.js
@@ -562,4 +562,30 @@
 		}
 	} );
 
+	$( function () {
+		// Prevent losing work
+		var allowCloseWindow,
+			$uploadForm = $( '#mw-upload-form' );
+
+		if ( !mw.user.options.get( 'useeditwarning' ) ) {
+			// If the user doesn't want edit warnings, don't set things up.
+			return;
+		}
+
+		$uploadForm.data( 'origtext', $uploadForm.serialize() );
+
+		allowCloseWindow = mw.confirmCloseWindow( {
+			test: function () {
+				return $( '#wpUploadFile' ).get( 0 ).files.length !== 0 ||
+					$uploadForm.data( 'origtext' ) !== $uploadForm.serialize();
+			},
+
+			message: mw.msg( 'editwarning-warning' ),
+			namespace: 'uploadwarning'
+		} );
+
+		$uploadForm.submit( function () {
+			allowCloseWindow();
+		} );
+	} );
 }( mediaWiki, jQuery ) );
-- 
2.20.1