From ffc8209ae30697fdccede12353dfa7f7f5aebffc Mon Sep 17 00:00:00 2001
From: Tom Gilder <tomgilder@users.mediawiki.org>
Date: Wed, 26 Oct 2005 10:59:44 +0000
Subject: [PATCH] (*fanfare*) added scripting to save the position of the edit
 box scrollbar on preview

---
 includes/EditPage.php    |  8 ++++++--
 skins/common/wikibits.js | 18 ++++++++++++++++++
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/includes/EditPage.php b/includes/EditPage.php
index 8e22eb036e..f8730411ab 100644
--- a/includes/EditPage.php
+++ b/includes/EditPage.php
@@ -318,6 +318,9 @@ class EditPage {
 
 			$this->edittime = $request->getVal( 'wpEdittime' );
 			$this->starttime = $request->getVal( 'wpStarttime' );
+
+			$this->scrolltop = htmlentities( $request->getVal( 'wpScrolltop' ) );
+
 			if( is_null( $this->edittime ) ) {
 				# If the form is incomplete, force to preview.
 				wfDebug( "$fname: Form data appears to be incomplete\n" );
@@ -844,7 +847,7 @@ END
 		$wgOut->addHTML( <<<END
 $recreate
 {$commentsubject}
-<textarea tabindex='1' accesskey="," name="wpTextbox1" rows='{$rows}'
+<textarea tabindex='1' accesskey="," name="wpTextbox1" id="wpTextbox1" rows='{$rows}'
 cols='{$cols}'{$ew} $hidden>
 END
 . htmlspecialchars( $this->safeUnicodeOutput( $this->textbox1 ) ) .
@@ -870,7 +873,8 @@ END
 		$wgOut->addHTML( "
 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
 <input type='hidden' value=\"{$this->starttime}\" name=\"wpStarttime\" />\n
-<input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n" );
+<input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n
+<input type='hidden' value=\"{$this->scrolltop}\" name=\"wpScrolltop\" id=\"wpScrolltop\" />\n" );
 
 		if ( $wgUser->isLoggedIn() ) {
 			/**
diff --git a/skins/common/wikibits.js b/skins/common/wikibits.js
index 32194ed816..4bb674ba33 100644
--- a/skins/common/wikibits.js
+++ b/skins/common/wikibits.js
@@ -32,6 +32,7 @@ function runOnloadHook()
     unhidetzbutton();
     tabbedprefs();
     akeytt();
+    scrollEditBox();
 
     // Run any added-on functions
     for ( var i = 0; i < onloadFuncts.length; i++ )
@@ -491,3 +492,20 @@ function considerChangingExpiryFocus() {
 	else
 		field.style.display = 'none';
 }
+
+function scrollEditBox() {
+
+  var editBoxEl = document.getElementById("wpTextbox1");
+  var scrollTopEl = document.getElementById("wpScrolltop");
+  var editFormEl = document.getElementById("editform");
+
+  if ( editBoxEl && scrollTopEl ) {
+
+    if (scrollTopEl.value) editBoxEl.scrollTop = scrollTopEl.value;
+    editFormEl.onsubmit = function() {
+      document.getElementById("wpScrolltop").value = document.getElementById("wpTextbox1").scrollTop;
+    }
+  }
+}
+
+hookEvent( "load", scrollEditBox );
\ No newline at end of file
-- 
2.20.1