From 2e69aaab1d31b440dfb65303d4bcd995b55d35b1 Mon Sep 17 00:00:00 2001
From: Kunal Mehta <legoktm@gmail.com>
Date: Tue, 30 Jun 2015 22:31:14 -0700
Subject: [PATCH] SpecialChangeContentModel: Use autocomplete for title field

Change-Id: I766da59e6cbf7ed8f887d1a684ea9e284e9cf67e
---
 .../specials/SpecialChangeContentModel.php    | 23 +++++--------------
 languages/i18n/en.json                        |  1 -
 languages/i18n/qqq.json                       |  1 -
 3 files changed, 6 insertions(+), 19 deletions(-)

diff --git a/includes/specials/SpecialChangeContentModel.php b/includes/specials/SpecialChangeContentModel.php
index 7647999813..cce5da5c12 100644
--- a/includes/specials/SpecialChangeContentModel.php
+++ b/includes/specials/SpecialChangeContentModel.php
@@ -44,22 +44,10 @@ class SpecialChangeContentModel extends FormSpecialPage {
 			// No form input yet
 			return true;
 		}
-		try {
-			$titleObj = Title::newFromTextThrow( $title );
-		} catch ( MalformedTitleException $e ) {
-			$msg = $this->msg( $e->getErrorMessage() );
-			$params = $e->getErrorMessageParameters();
-			if ( $params ) {
-				$msg->params( $params );
-			}
-			return $msg->parse();
-		}
-		if ( !$titleObj->canExist() ) {
-			return $this->msg(
-				'changecontentmodel-title-cantexist',
-				$titleObj->getPrefixedText()
-			)->escaped();
-		}
+
+		// Already validated by HTMLForm, but if not, throw
+		// and exception instead of a fatal
+		$titleObj = Title::newFromTextThrow( $title );
 
 		$this->oldRevision = Revision::newFromTitle( $titleObj ) ?: false;
 
@@ -79,7 +67,8 @@ class SpecialChangeContentModel extends FormSpecialPage {
 		$that = $this;
 		$fields = array(
 			'pagetitle' => array(
-				'type' => 'text',
+				'type' => 'title',
+				'creatable' => true,
 				'name' => 'pagetitle',
 				'default' => $this->par,
 				'label-message' => 'changecontentmodel-title-label',
diff --git a/languages/i18n/en.json b/languages/i18n/en.json
index 1fdd75d7b8..97f131014d 100644
--- a/languages/i18n/en.json
+++ b/languages/i18n/en.json
@@ -1950,7 +1950,6 @@
 	"changecontentmodel-success-title": "The content model was changed",
 	"changecontentmodel-success-text": "The content type of [[:$1]] has been changed.",
 	"changecontentmodel-cannot-convert": "The content on [[:$1]] cannot be converted to a type of $2.",
-	"changecontentmodel-title-cantexist": "It is not possible to have a page at $1.",
 	"changecontentmodel-nodirectediting": "The $1 content model does not support direct editing",
 	"log-name-contentmodel": "Content model change log",
 	"log-description-contentmodel": "Events related to the content models of a page",
diff --git a/languages/i18n/qqq.json b/languages/i18n/qqq.json
index 872a89f39c..4137931f72 100644
--- a/languages/i18n/qqq.json
+++ b/languages/i18n/qqq.json
@@ -2121,7 +2121,6 @@
 	"changecontentmodel-success-title": "Title of the success page of the change content model special page",
 	"changecontentmodel-success-text": "Message telling user that their change has been successfully done.\n* $1 - Target page title",
 	"changecontentmodel-cannot-convert": "Error message shown if the content model cannot be changed to the specified type. $1 is the page title, $2 is the localized content model name.",
-	"changecontentmodel-title-cantexist": "Error message shown if the page the user provided is a special page.\n\nParameters:\n* $1 - the page title which cannot exist",
 	"changecontentmodel-nodirectediting": "Error message shown if the content model does not allow for direct editing. $1 is the localized name of the content model.",
 	"log-name-contentmodel": "{{doc-logpage}}\n\nTitle of [[Special:Log/contentmodel]].",
 	"log-description-contentmodel": "Text in [[Special:Log/contentmodel]].",
-- 
2.20.1