From d9630a8820246267ae559e6e37067e56f34266c6 Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Tue, 5 Mar 2013 10:10:04 -0800
Subject: [PATCH] Only do the delete hack if it's the first key press

This avoids unexpectedly deleting when you spam backspace
to clear a failed search query.
---
 index.html              | 1 +
 js/id/ui/preset_grid.js | 2 +-
 js/lib/d3.one.js        | 1 +
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/index.html b/index.html
index 43de200cc..ad038f359 100644
--- a/index.html
+++ b/index.html
@@ -27,6 +27,7 @@
         <script src='js/lib/d3.trigger.js'></script>
         <script src='js/lib/d3.keybinding.js'></script>
         <script src='js/lib/d3.clip.js'></script>
+        <script src='js/lib/d3.one.js'></script>
         <script src='js/lib/d3-compat.js'></script>
         <script src='js/lib/bootstrap-tooltip.js'></script>
         <script src='js/lib/rtree.js'></script>
diff --git a/js/id/ui/preset_grid.js b/js/id/ui/preset_grid.js
index 03d81ad67..628a094f5 100644
--- a/js/id/ui/preset_grid.js
+++ b/js/id/ui/preset_grid.js
@@ -26,7 +26,7 @@ iD.ui.PresetGrid = function(context) {
         var search = searchwrap.append('input')
             .attr('class', 'preset-grid-search')
             .attr('type', 'search')
-            .on('keydown', function() {
+            .one('keydown', function() {
                 // hack to let delete shortcut work when search is autofocused
                 if (search.property('value').length === 0 &&
                     (d3.event.keyCode === d3.keybinding.keyCodes['⌫'] ||
diff --git a/js/lib/d3.one.js b/js/lib/d3.one.js
index cf4b54723..b28bd2c58 100644
--- a/js/lib/d3.one.js
+++ b/js/lib/d3.one.js
@@ -5,4 +5,5 @@ d3.selection.prototype.one = function (type, listener, capture) {
         listener.apply(this, arguments);
     }
     target.on(typeOnce, one, capture);
+    return this;
 };