From 6faa0650bc59a9d24cd07b90f90f7c9aae30e0bd Mon Sep 17 00:00:00 2001
From: zepumph <michael.kauzmann@colorado.edu>
Date: Mon, 29 Jul 2019 14:23:53 -0800
Subject: [PATCH] create layoutStrategyCenteredInScreen, KeyboardHelpDialog to
 use it, https://github.com/phetsims/gravity-force-lab/issues/144

---
 js/Dialog.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/js/Dialog.js b/js/Dialog.js
index 8d51ee97..2e08b190 100644
--- a/js/Dialog.js
+++ b/js/Dialog.js
@@ -376,6 +376,12 @@ define( require => {
     focusCloseButton() {
       this.closeButton.focus();
     }
+  }, {
+
+    // @public - Center in the screenBounds (doesn't include the navigation bar)
+    layoutStrategyCenteredInScreen: function( dialog, simBounds, screenBounds, scale ) {
+      dialog.center = screenBounds.center.times( 1.0 / scale );
+    }
   } );