From d42d88c198d24f5569a6ea67f2d35c587b1416c0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89ric=20Lemoine?= <eric.lemoine@gmail.com>
Date: Mon, 4 Mar 2013 20:30:15 +0100
Subject: [PATCH] Animate rotation when releasing mouse or fingers

---
 src/ol/interaction/dragrotateinteraction.js  |  9 ++++++++-
 src/ol/interaction/touchrotateinteraction.js | 11 ++++++++++-
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/ol/interaction/dragrotateinteraction.js b/src/ol/interaction/dragrotateinteraction.js
index 90b92c0be5..d4036be9c1 100644
--- a/src/ol/interaction/dragrotateinteraction.js
+++ b/src/ol/interaction/dragrotateinteraction.js
@@ -6,6 +6,12 @@ goog.require('ol.interaction.ConditionType');
 goog.require('ol.interaction.Drag');
 
 
+/**
+ * @define {number} Animation duration.
+ */
+ol.interaction.DRAGROTATE_ANIMATION_DURATION = 250;
+
+
 
 /**
  * @constructor
@@ -62,7 +68,8 @@ ol.interaction.DragRotate.prototype.handleDragEnd = function(mapBrowserEvent) {
   // FIXME supports View2D only
   var view = map.getView();
   goog.asserts.assert(view instanceof ol.View2D);
-  view.rotate(map, view.getRotation());
+  view.rotate(map, view.getRotation(), undefined,
+      ol.interaction.DRAGROTATE_ANIMATION_DURATION);
   view.setHint(ol.ViewHint.INTERACTING, -1);
 };
 
diff --git a/src/ol/interaction/touchrotateinteraction.js b/src/ol/interaction/touchrotateinteraction.js
index be084f7db0..a3a6e14dfe 100644
--- a/src/ol/interaction/touchrotateinteraction.js
+++ b/src/ol/interaction/touchrotateinteraction.js
@@ -8,6 +8,14 @@ goog.require('ol.ViewHint');
 goog.require('ol.interaction.Touch');
 
 
+/**
+ * @define {number} Animation duration.
+ */
+ol.interaction.TOUCHROTATE_ANIMATION_DURATION = 250;
+
+
+
+/**
 
 /**
  * @constructor
@@ -104,7 +112,8 @@ ol.interaction.TouchRotate.prototype.handleTouchEnd =
     var map = mapBrowserEvent.map;
     var view = map.getView();
     if (this.rotating_) {
-      view.rotate(map, view.getRotation());
+      view.rotate(map, view.getRotation(), undefined,
+          ol.interaction.TOUCHROTATE_ANIMATION_DURATION);
     }
     view.setHint(ol.ViewHint.INTERACTING, -1);
     return false;