From 1721ca8a0cfba112440a18011e1dcc8004fff4d2 Mon Sep 17 00:00:00 2001
From: nightwing <amirjanyan@gmail.com>
Date: Thu, 13 Nov 2014 23:57:10 +0400
Subject: [PATCH 1/3] fix unwanted scrolling into view of hidden textarea

---
 lib/ace/keyboard/textinput.js  |  9 ++++++++-
 lib/ace/mouse/mouse_handler.js |  6 ++----
 lib/ace/virtual_renderer.js    | 14 ++++++++------
 3 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/lib/ace/keyboard/textinput.js b/lib/ace/keyboard/textinput.js
index 1e6b057e..c0902e27 100644
--- a/lib/ace/keyboard/textinput.js
+++ b/lib/ace/keyboard/textinput.js
@@ -75,7 +75,14 @@ var TextInput = function(parentNode, host) {
         host.onFocus(e);
         resetSelection();
     });
-    this.focus = function() { text.focus(); };
+    this.focus = function() {
+        text.style.position = "fixed";
+        text.style.top = "-10000000px";
+        text.focus();
+        setTimeout(function() {
+            text.style.position = "";
+        }, 0);
+    };
     this.blur = function() { text.blur(); };
     this.isFocused = function() {
         return isFocused;
diff --git a/lib/ace/mouse/mouse_handler.js b/lib/ace/mouse/mouse_handler.js
index 9cf26721..d032e687 100644
--- a/lib/ace/mouse/mouse_handler.js
+++ b/lib/ace/mouse/mouse_handler.js
@@ -47,10 +47,8 @@ var MouseHandler = function(editor) {
     new DefaultGutterHandler(this);
     new DragdropHandler(this);
     
-    var focusEditor = function(e) { 
-        if (!editor.isFocused() && editor.textInput)
-            editor.textInput.moveToMouse(e);
-        editor.focus() 
+    var focusEditor = function(e) {
+        editor.focus();
     };
     
     var mouseTarget = editor.renderer.getMouseEventTarget();
diff --git a/lib/ace/virtual_renderer.js b/lib/ace/virtual_renderer.js
index 820b054d..99f41731 100644
--- a/lib/ace/virtual_renderer.js
+++ b/lib/ace/virtual_renderer.js
@@ -634,9 +634,12 @@ var VirtualRenderer = function(container, theme) {
         var posLeft = this.$cursorLayer.$pixelPos.left;
         posTop -= config.offset;
 
+        var style = this.textarea.style;
         var h = this.lineHeight;
-        if (posTop < 0 || posTop > config.height - h)
+        if (posTop < 0 || posTop > config.height - h) {
+            style.top = style.left = "0";
             return;
+        }
 
         var w = this.characterWidth;
         if (this.$composition) {
@@ -649,11 +652,10 @@ var VirtualRenderer = function(container, theme) {
             posLeft = this.$size.scrollerWidth - w;
 
         posLeft += this.gutterWidth;
-
-        this.textarea.style.height = h + "px";
-        this.textarea.style.width = w + "px";
-        this.textarea.style.left = Math.min(posLeft, this.$size.scrollerWidth - w) + "px";
-        this.textarea.style.top = Math.min(posTop, this.$size.height - h) + "px";
+        style.height = h + "px";
+        style.width = w + "px";
+        style.left = Math.min(posLeft, this.$size.scrollerWidth - w) + "px";
+        style.top = Math.min(posTop, this.$size.height - h) + "px";
     };
 
     /**

From 7326de2a486cae5a5246c18ff7ace53de28bf3d5 Mon Sep 17 00:00:00 2001
From: nightwing <amirjanyan@gmail.com>
Date: Fri, 14 Nov 2014 00:56:28 +0400
Subject: [PATCH 2/3] reset cached scroll values when resizing

this is needed since scrollTop of scrollbar element can be reset to 0
when ace is moved in the document.
---
 lib/ace/virtual_renderer.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/ace/virtual_renderer.js b/lib/ace/virtual_renderer.js
index 99f41731..ae438ae8 100644
--- a/lib/ace/virtual_renderer.js
+++ b/lib/ace/virtual_renderer.js
@@ -375,6 +375,9 @@ var VirtualRenderer = function(container, theme) {
 
         if (this.resizing)
             this.resizing = 0;
+        // reset cached values on scrollbars, needs to be removed when switching to non-native scrollbars
+        // see https://github.com/ajaxorg/ace/issues/2195
+        this.scrollBarV.scrollLeft = this.scrollBarV.scrollTop = null;
     };
     
     this.$updateCachedSize = function(force, gutterWidth, width, height) {

From bf7eba22535aed74e4fff3d60aeafff8ada39b1c Mon Sep 17 00:00:00 2001
From: nightwing <amirjanyan@gmail.com>
Date: Fri, 14 Nov 2014 01:27:59 +0400
Subject: [PATCH 3/3] fix focusing window with click on ie

---
 lib/ace/mouse/mouse_handler.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/ace/mouse/mouse_handler.js b/lib/ace/mouse/mouse_handler.js
index d032e687..6b331eee 100644
--- a/lib/ace/mouse/mouse_handler.js
+++ b/lib/ace/mouse/mouse_handler.js
@@ -48,6 +48,10 @@ var MouseHandler = function(editor) {
     new DragdropHandler(this);
     
     var focusEditor = function(e) {
+        // because we have to call event.preventDefault() any window on ie and iframes 
+        // on other browsers do not get focus, so we have to call window.focus() here
+        if (!document.hasFocus || !document.hasFocus())
+            window.focus();
         editor.focus();
     };