From a26ea0bf8283c4fd9ecff990bef9bf2b63ec0d26 Mon Sep 17 00:00:00 2001
From: Derk-Jan Hartman <hartman.wiki@gmail.com>
Date: Thu, 12 Mar 2015 22:28:28 +0100
Subject: [PATCH] LivePreview: Support section=new for preview

Reproduce the new section behavior for the full submit preview.
Diffing will require a bit more additional work in Api.

Bug: T84877
Change-Id: Iec71fdc7ba09f91683214f3d65472ea2f72a06b1
---
 resources/Resources.php                       |  1 +
 .../mediawiki.action.edit.preview.js          | 26 +++++++++++++------
 2 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/resources/Resources.php b/resources/Resources.php
index 2b12c7a6d3..69a6ff7149 100644
--- a/resources/Resources.php
+++ b/resources/Resources.php
@@ -1095,6 +1095,7 @@ return array(
 			'otherlanguages',
 			'tooltip-p-lang',
 			'summary-preview',
+			'subject-preview',
 			'parentheses',
 		),
 	),
diff --git a/resources/src/mediawiki.action/mediawiki.action.edit.preview.js b/resources/src/mediawiki.action/mediawiki.action.edit.preview.js
index 4c6ca12ba1..c86f7c5255 100644
--- a/resources/src/mediawiki.action/mediawiki.action.edit.preview.js
+++ b/resources/src/mediawiki.action/mediawiki.action.edit.preview.js
@@ -11,14 +11,18 @@
 		var isDiff, api, request, postData, copySelectors, section,
 			$wikiPreview, $wikiDiff, $editform, $copyElements, $spinner;
 
-		e.preventDefault();
-
 		isDiff = ( e.target.name === 'wpDiff' );
 		$wikiPreview = $( '#wikiPreview' );
 		$wikiDiff = $( '#wikiDiff' );
 		$editform = $( '#editform' );
 		section = $editform.find( '[name="wpSection"]' ).val();
 
+		// Show changes for a new section is not yet supported
+		if ( isDiff && section === 'new' ) {
+			return;
+		}
+		e.preventDefault();
+
 		// Show #wikiPreview if it's hidden to be able to scroll to it
 		// (if it is hidden, it's also empty, so nothing changes in the rendering)
 		$wikiPreview.show();
@@ -65,6 +69,14 @@
 			summary: $editform.find( '#wpSummary' ).textSelection( 'getContents' )
 		};
 
+		if ( section !== '' ) {
+			postData.sectionpreview = '';
+			if ( section === 'new' ) {
+				postData.section = section;
+				postData.sectiontitle = postData.summary;
+			}
+		}
+
 		if ( isDiff ) {
 			$wikiPreview.hide();
 
@@ -104,9 +116,6 @@
 				prop: 'text|displaytitle|modules|categorieshtml|templates|langlinks|limitreporthtml',
 				disableeditsection: true
 			} );
-			if ( section !== '' ) {
-				postData.sectionpreview = '';
-			}
 			request = api.post( postData );
 			request.done( function ( response ) {
 				var li, newList, $content, $parent, $list;
@@ -186,12 +195,13 @@
 			} );
 		}
 		request.done( function ( response ) {
+			var isSubject = ( section === 'new' ),
+				summaryMsg = isSubject ? 'subject-preview' : 'summary-preview';
 			if ( response.parse.parsedsummary ) {
-				// TODO implement special behavior for section === 'new'
 				$editform.find( '.mw-summary-preview' )
 					.empty()
 					.append(
-						mw.message( 'summary-preview' ).parse(),
+						mw.message( summaryMsg ).parse(),
 						' ',
 						$( '<span>' ).addClass( 'comment' ).html(
 							// There is no equivalent to rawParams
@@ -238,7 +248,7 @@
 		}
 
 		if ( !$( '.mw-summary-preview' ).length ) {
-			$( '.editCheckboxes' ).before(
+			$( '#wpSummary' ).after(
 				$( '<div>' ).addClass( 'mw-summary-preview' )
 			);
 		}
-- 
2.20.1