getLines and getScreenLines, handle detaching/reattaching widgets.

README.md

@@ -403,6 +403,9 @@ parameter must be a string.
 - **shiftLine(i)** - shift a line off the top of the content.
 - **pushLine(lines)** - push a line onto the bottom of the content.
 - **popLine(i)** - pop a line off the bottom of the content.
+- **getLines()** - an array containing the content lines.
+- **getScreenLines()** - an array containing the lines as they are displayed on
+  the screen.
 
 
 #### Box (from Element)

lib/widget.js

@@ -3518,6 +3518,14 @@ Element.prototype.popLine = function(n) {
   return this.deleteLine(this._clines.fake.length - 1, n);
 };
 
+Element.prototype.getLines = function() {
+  return this._clines.fake.slice();
+};
+
+Element.prototype.getScreenLines = function() {
+  return this._clines.slice();
+};
+
 /**
  * Box
  */
@@ -3889,7 +3897,7 @@ ScrollableBox.prototype.resetScroll = function() {
   return this.emit('scroll');
 };
 
-ScrollableBox.prototype.getScrollHeight = function(s) {
+ScrollableBox.prototype.getScrollHeight = function() {
   return Math.max(this._clines.length, this._scrollBottom());
 };
 
@@ -4278,6 +4286,11 @@ List.prototype.pick = function(callback) {
   var focused = this.screen.focused;
   if (focused && focused._done) focused._done('stop');
   this.screen.saveFocus();
+
+  //var parent = this.parent;
+  //this.detach();
+  //parent.append(this);
+
   this.focus();
   this.show();
   this.screen.render();
@@ -5458,6 +5471,10 @@ Prompt.prototype.type = function(text, value, callback) {
     value = '';
   }
 
+  //var parent = this.parent;
+  //this.detach();
+  //parent.append(this);
+
   this.show();
   this.setContent(' ' + text);
 
@@ -5540,6 +5557,10 @@ Question.prototype.ask = function(text, callback) {
   var self = this;
   var press, okay, cancel;
 
+  //var parent = this.parent;
+  //this.detach();
+  //parent.append(this);
+
   this.show();
   this.setContent(' ' + text);
 
@@ -5609,9 +5630,9 @@ Message.prototype.display = function(text, time, callback) {
   if (time == null) time = 3;
   //time = time || 3;
 
-  var parent = this.parent;
+  //var parent = this.parent;
-  this.detach();
+  //this.detach();
-  parent.append(this);
+  //parent.append(this);
 
   if (this.scrollable) {
     this.screen.saveFocus();
@@ -5712,6 +5733,10 @@ Loading.prototype.type = 'loading';
 Loading.prototype.load = function(text) {
   var self = this;
 
+  //var parent = this.parent;
+  //this.detach();
+  //parent.append(this);
+
   this.show();
   this.setContent(text);