From b97496009b800e843c91893da374cf886b0a420f Mon Sep 17 00:00:00 2001
From: nightwing <amirjanyan@gmail.com>
Date: Sun, 7 Jul 2013 12:48:53 +0400
Subject: [PATCH] scrollPastEnd

---
 lib/ace/virtual_renderer.js | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/lib/ace/virtual_renderer.js b/lib/ace/virtual_renderer.js
index 6ed5a01d..b70d6906 100644
--- a/lib/ace/virtual_renderer.js
+++ b/lib/ace/virtual_renderer.js
@@ -848,7 +848,7 @@ var VirtualRenderer = function(container, theme) {
         
         var hideScrollbars = this.$size.height <= 2 * this.lineHeight;
         var screenLines = this.session.getScreenLength()
-        var maxHeight =  screenLines * this.lineHeight;
+        var maxHeight = screenLines * this.lineHeight;
 
         var offset = this.scrollTop % this.lineHeight;
         var minHeight = this.$size.scrollerHeight + this.lineHeight;
@@ -864,6 +864,9 @@ var VirtualRenderer = function(container, theme) {
             this.scrollBarH.setVisible(horizScroll);
         }
         
+        if (!this.$maxLines && this.$scrollPastEnd)
+            maxHeight += (this.$size.scrollerHeight - this.lineHeight) * this.$scrollPastEnd;
+
         var vScroll = !hideScrollbars && (this.$vScrollBarAlwaysVisible ||
             this.$size.scrollerHeight - maxHeight < 0);
         var vScrollChanged = this.$vScroll !== vScroll;
@@ -1579,9 +1582,23 @@ config.defineOptions(VirtualRenderer.prototype, "renderer", {
         }
     },
     minLines: {
-        set: function(name) {        
+        set: function(val) {
             this.updateFull();
         }
+    },
+    scrollPastEnd: {
+        set: function(val) {
+            if (val == true)
+                val = 1;
+            else if (val == false)
+                val = 0;
+            if (this.$scrollPastEnd == val)
+                return;
+            this.$scrollPastEnd = val;
+            this.$loop.schedule(this.CHANGE_SCROLL);
+        },
+        initialValue: 1,
+        handlesSet: true
     }
 });