Merge pull request #822 from t3chguy/BaseDialog_restore_focus

Remember element that was in focus before rendering dialog

src/components/views/dialogs/BaseDialog.js

@@ -47,6 +47,16 @@ export default React.createClass({
         children: React.PropTypes.node,
     },
 
+    componentWillMount: function() {
+        this.priorActiveElement = document.activeElement;
+    },
+
+    componentWillUnmount: function() {
+        if (this.priorActiveElement !== null) {
+            this.priorActiveElement.focus();
+        }
+    },
+
     _onKeyDown: function(e) {
         if (e.keyCode === KeyCode.ESCAPE) {
             e.stopPropagation();