From 812cb7fb123e769205ebefa8ad95f6847ea0c44f Mon Sep 17 00:00:00 2001
From: Tim Schaub <tim.schaub@gmail.com>
Date: Thu, 7 Nov 2013 11:02:04 -0700
Subject: [PATCH 1/2] Leave the down_ event set

The other "up" type listeners (for touch and pointer) do not set this to null.  This event can be of use to a click listener that might want to compare the down position to the click event's position.
---
 src/ol/mapbrowserevent.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/ol/mapbrowserevent.js b/src/ol/mapbrowserevent.js
index bbcd79cb54..b9e991bc82 100644
--- a/src/ol/mapbrowserevent.js
+++ b/src/ol/mapbrowserevent.js
@@ -221,7 +221,6 @@ ol.MapBrowserEventHandler.prototype.handleMouseUp_ = function(browserEvent) {
       var newEvent = new ol.MapBrowserEvent(
           ol.MapBrowserEvent.EventType.DRAGEND, this.map_, browserEvent);
       this.dispatchEvent(newEvent);
-      this.down_ = null;
     } else if (browserEvent.isMouseActionButton()) {
       this.emulateClick_(browserEvent);
     }

From 22fb4182361f7ddad34d90bf2be19c854914f373 Mon Sep 17 00:00:00 2001
From: Tim Schaub <tim.schaub@gmail.com>
Date: Thu, 7 Nov 2013 11:21:01 -0700
Subject: [PATCH 2/2] Provide a method to get the most recent down type event

This will allow interactions to conditionally handle later events based on the down event.
---
 src/ol/mapbrowserevent.js            | 11 ++++++++++
 test/spec/ol/mapbrowserevent.test.js | 32 ++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/src/ol/mapbrowserevent.js b/src/ol/mapbrowserevent.js
index b9e991bc82..e1fc29b01d 100644
--- a/src/ol/mapbrowserevent.js
+++ b/src/ol/mapbrowserevent.js
@@ -185,6 +185,17 @@ ol.MapBrowserEventHandler = function(map) {
 goog.inherits(ol.MapBrowserEventHandler, goog.events.EventTarget);
 
 
+/**
+ * Get the last "down" type event.  This will be set on mousedown,
+ * touchstart, and pointerdown.
+ * @return {goog.events.BrowserEvent} The most recent "down" type event (or null
+ * if none have occurred).
+ */
+ol.MapBrowserEventHandler.prototype.getDown = function() {
+  return this.down_;
+};
+
+
 /**
  * @param {goog.events.BrowserEvent} browserEvent Browser event.
  * @private
diff --git a/test/spec/ol/mapbrowserevent.test.js b/test/spec/ol/mapbrowserevent.test.js
index cf2b385fc7..6dde480390 100644
--- a/test/spec/ol/mapbrowserevent.test.js
+++ b/test/spec/ol/mapbrowserevent.test.js
@@ -51,8 +51,40 @@ describe('ol.MapBrowserEventHandler', function() {
     });
 
   });
+
+  describe('#getDown()', function() {
+
+    var handler;
+    beforeEach(function() {
+      handler = new ol.MapBrowserEventHandler(new ol.Map({}));
+    });
+
+    it('returns null if no "down" type event has been handled', function() {
+      expect(handler.getDown()).to.be(null);
+    });
+
+    it('returns an event after handleMouseDown_ has been called', function() {
+      var event = new goog.events.BrowserEvent({});
+      handler.handleMouseDown_(event);
+      expect(handler.getDown()).to.be(event);
+    });
+
+    it('returns an event after handlePointerDown_ has been called', function() {
+      var event = new goog.events.BrowserEvent({});
+      handler.handlePointerDown_(event);
+      expect(handler.getDown()).to.be(event);
+    });
+
+    it('returns an event after handleTouchStart_ has been called', function() {
+      var event = new goog.events.BrowserEvent({});
+      handler.handleTouchStart_(event);
+      expect(handler.getDown()).to.be(event);
+    });
+
+  });
 });
 
 goog.require('goog.events');
+goog.require('goog.events.BrowserEvent');
 goog.require('ol.Map');
 goog.require('ol.MapBrowserEventHandler');