From dfe918e339dc2c1d4adef0bfa0f850b387964326 Mon Sep 17 00:00:00 2001
From: nightwing <amirjanyan@gmail.com>
Date: Mon, 1 Oct 2012 17:12:42 +0400
Subject: [PATCH] fix line highlight on the last line  Issue #934

---
 lib/ace/edit_session.js | 33 +++++++++++++++++++++++++--------
 lib/ace/editor.js       | 32 ++++++++++++++------------------
 2 files changed, 39 insertions(+), 26 deletions(-)

diff --git a/lib/ace/edit_session.js b/lib/ace/edit_session.js
index a739b677..d24888da 100644
--- a/lib/ace/edit_session.js
+++ b/lib/ace/edit_session.js
@@ -375,14 +375,7 @@ var EditSession = function(text, mode) {
         token.start = c - token.value.length;
         return token;
     };
-
-    this.highlight = function(re) {
-        if (!this.$searchHighlight) {
-            var highlight = new SearchHighlight(null, "ace_selected-word", "text");
-            this.$searchHighlight = this.addDynamicMarker(highlight);
-        }
-        this.$searchHighlight.setRegexp(re);
-    }
+ 
     /**
     * EditSession.setUndoManager(undoManager)
     * - undoManager (UndoManager): The new undo manager
@@ -736,6 +729,30 @@ var EditSession = function(text, mode) {
         return inFront ? this.$frontMarkers : this.$backMarkers;
     };
 
+    this.highlight = function(re) {
+        if (!this.$searchHighlight) {
+            var highlight = new SearchHighlight(null, "ace_selected-word", "text");
+            this.$searchHighlight = this.addDynamicMarker(highlight);
+        }
+        this.$searchHighlight.setRegexp(re);
+    }
+    
+    // experimental
+    this.highlightLines = function(startRow, endRow, clazz, inFront) {
+        if (typeof endRow != "number") {
+            clazz = endRow;
+            endRow = startRow;
+        }
+        if (!clazz)
+            clazz = "ace_step";
+        
+        var range = new Range(startRow, 0, endRow, Infinity);
+        
+        var id = this.addMarker(range, clazz, "fullLine", inFront);
+        range.id = id;
+        return range;
+    },
+   
     /*
      * Error:
      *  {
diff --git a/lib/ace/editor.js b/lib/ace/editor.js
index 937e0e73..16588ec0 100644
--- a/lib/ace/editor.js
+++ b/lib/ace/editor.js
@@ -481,28 +481,24 @@ var Editor = function(renderer, session) {
     this.$updateHighlightActiveLine = function() {
         var session = this.getSession();
 
-        if (session.$highlightLineMarker)
-            session.removeMarker(session.$highlightLineMarker);
-
-        session.$highlightLineMarker = null;
-
+        var highlight;
         if (this.$highlightActiveLine) {
-            var cursor = this.getCursorPosition();
-            var foldLine = this.session.getFoldLine(cursor.row);
+            if ((this.$selectionStyle != "line" || !this.selection.isMultiLine()))
+                highlight = this.getCursorPosition();
+        }
 
-            if ((this.getSelectionStyle() != "line" || !this.selection.isMultiLine())) {
-                var range;
-                if (foldLine) {
-                    range = new Range(foldLine.start.row, 0, foldLine.end.row + 1, 0);
-                } else {
-                    range = new Range(cursor.row, 0, cursor.row+1, 0);
-                }
-                session.$highlightLineMarker = session.addMarker(range, "ace_active-line", "background");
-            }
+        if (session.$highlightLineMarker && !highlight) {
+            session.removeMarker(session.$highlightLineMarker.id);
+            session.$highlightLineMarker = null;
+        } else if (!session.$highlightLineMarker && highlight) {
+            session.$highlightLineMarker = session.highlightLines(highlight.row, highlight.row, "ace_active-line");
+        } else if (highlight) {
+            session.$highlightLineMarker.start.row = highlight.row;
+            session.$highlightLineMarker.end.row = highlight.row;
+            session._emit("changeBackMarker");
         }
     };
 
-
     this.onSelectionChange = function(e) {
         var session = this.session;
 
@@ -2126,4 +2122,4 @@ var Editor = function(renderer, session) {
 
 
 exports.Editor = Editor;
-});
\ No newline at end of file
+});