From 3ae083f5cfcc558c5fa796a54af723d8d0373518 Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Thu, 5 Mar 2015 12:17:53 -0800
Subject: [PATCH] Suppress click event following compass gesture (fixes #1055)

---
 js/ui/control/navigation.js |  6 ++++++
 js/util/browser/dom.js      | 13 +++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/js/ui/control/navigation.js b/js/ui/control/navigation.js
index 9ded33a22ae..13fce8c3399 100644
--- a/js/ui/control/navigation.js
+++ b/js/ui/control/navigation.js
@@ -59,6 +59,7 @@ Navigation.prototype = util.inherit(Control, {
 
         this._map.setBearing(this._map.getBearing() - d);
         this._prevX = e.screenX;
+        this._moved = true;
 
         e.preventDefault();
     },
@@ -67,6 +68,11 @@ Navigation.prototype = util.inherit(Control, {
         document.removeEventListener('mousemove', this._onCompassMove);
         document.removeEventListener('mouseup', this._onCompassUp);
         DOM.enableDrag();
+
+        if (this._moved) {
+            this._moved = false;
+            DOM.suppressClick();
+        }
     },
 
     _createButton: function(className, fn) {
diff --git a/js/util/browser/dom.js b/js/util/browser/dom.js
index de5f43363ef..95a5ffe5ab4 100644
--- a/js/util/browser/dom.js
+++ b/js/util/browser/dom.js
@@ -35,3 +35,16 @@ var transformProp = testProp(['transform', 'WebkitTransform']);
 exports.setTransform = function(el, value) {
     el.style[transformProp] = value;
 };
+
+// Suppress the next click, but only if it's immediate.
+function suppressClick(e) {
+    e.preventDefault();
+    e.stopPropagation();
+    window.removeEventListener('click', suppressClick, true);
+}
+exports.suppressClick = function() {
+    window.addEventListener('click', suppressClick, true);
+    window.setTimeout(function() {
+        window.removeEventListener('click', suppressClick, true);
+    }, 0);
+};