save/restore focus.

README.md

@@ -197,6 +197,8 @@ The screen on which every other node renders.
 - **focusNext()** - focus next element in the index.
 - **focusPush(element)** - push element on the focus stack (equivalent to `screen.focused = el`).
 - **focusPop()/focusLast()** - pop element off the focus stack.
+- **saveFocus()** - save the focused element.
+- **restoreFocus()** - restore the saved focused element.
 
 
 #### Element (from Node)

lib/widget.js

@@ -675,6 +675,17 @@ Screen.prototype.focusPop = function() {
   return this.history.pop();
 };
 
+Screen.prototype.saveFocus = function() {
+  return this._savedFocus = this.focused;
+};
+
+Screen.prototype.restoreFocus = function() {
+  if (!this._savedFocus) return;
+  this._savedFocus.focus();
+  delete this._savedFocus;
+  return this.focused;
+};
+
 Screen.prototype.__defineGetter__('focused', function() {
   return this.history[this.history.length-1];
 });