From 364e0c9de3cb5f0c4971c50b0b1d6b0600ac22a2 Mon Sep 17 00:00:00 2001
From: Marcel Gerber <mg.hain@gmx.de>
Date: Thu, 29 May 2014 01:45:11 +0200
Subject: [PATCH] Don't allow creating empty file filters

---
 src/search/FileFilters.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/search/FileFilters.js b/src/search/FileFilters.js
index df0c52a0e0e..2dbbf8f1f90 100644
--- a/src/search/FileFilters.js
+++ b/src/search/FileFilters.js
@@ -330,6 +330,18 @@ define(function (require, exports, module) {
             });
         }
         
+        // Code to enable/disable the OK button at the bottom of dialog (whether filter is empty or not)
+        var $primaryBtn = dialog.getElement().find(".primary");
+
+        function updatePrimaryButton() {
+            var trimmedValue = $editField.val().trim();
+
+            $primaryBtn.prop("disabled", !trimmedValue.length);
+        }
+
+        $editField.on("input", updatePrimaryButton);
+        updatePrimaryButton();
+
         if (_context) {
             $editField.on("input", _.debounce(updateFileCount, 400));
             updateFileCount();