From c260bb9a027bdc01f8f6c1231c14c84effcbbfa8 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Sun, 9 Jun 2013 15:52:22 -0500
Subject: [PATCH] add focus history.

---
 lib/widget.js | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/lib/widget.js b/lib/widget.js
index 49399d3..4818181 100644
--- a/lib/widget.js
+++ b/lib/widget.js
@@ -142,7 +142,8 @@ function Screen(options) {
     bottom: this.bottom = 0
   };
 
-  this.focused = null;
+  //this.focused = null;
+  this.history = [];
   this.clickable = [];
   this.input = [];
   this.grabKeys = false;
@@ -449,6 +450,26 @@ Screen.prototype.focusNext = function() {
   return this.focus(1);
 };
 
+Screen.prototype.focusPush = function(el) {
+  if (this.history.length === 10) {
+    this.history.shift();
+  }
+  this.history.push(el);
+};
+
+Screen.prototype.focusLast =
+Screen.prototype.focusPop = function() {
+  return this.history.pop();
+};
+
+Screen.prototype.__defineGetter__('focused', function() {
+  return this.history[this.history.length-1];
+});
+
+Screen.prototype.__defineSetter__('focused', function(el) {
+  return this.focusPush(el);
+});
+
 Screen.prototype.clearRegion = function(xi, xl, yi, yl) {
   return this.fillRegion(this.dattr, ' ', xi, xl, yi, yl);
 };