Configure ol.interaction.DragRotate with options

src/objectliterals.jsdoc

@@ -170,6 +170,11 @@
  *    click.
  */
 
+/**
+ * @typedef {Object} ol.interaction.DragRotateOptions
+ * @property {ol.interaction.ConditionType|undefined} condition Condition.
+ */
+
 /**
  * Interactions for the map. Default is true for all options.
  * @typedef {Object} ol.interaction.DefaultsOptions

src/ol/interaction/dragrotateinteraction.js

@@ -6,6 +6,7 @@ goog.require('ol.ViewHint');
 goog.require('ol.interaction.ConditionType');
 goog.require('ol.interaction.Drag');
 goog.require('ol.interaction.Interaction');
+goog.require('ol.interaction.condition');
 
 
 /**
@@ -18,9 +19,11 @@ ol.interaction.DRAGROTATE_ANIMATION_DURATION = 250;
 /**
  * @constructor
  * @extends {ol.interaction.Drag}
- * @param {ol.interaction.ConditionType} condition Condition.
+ * @param {ol.interaction.DragRotateOptions=} opt_options Options.
  */
-ol.interaction.DragRotate = function(condition) {
+ol.interaction.DragRotate = function(opt_options) {
+
+  var options = goog.isDef(opt_options) ? opt_options : {};
 
   goog.base(this);
 
@@ -28,7 +31,8 @@ ol.interaction.DragRotate = function(condition) {
    * @private
    * @type {ol.interaction.ConditionType}
    */
-  this.condition_ = condition;
+  this.condition_ = goog.isDef(options.condition) ?
+      options.condition : ol.interaction.condition.altShiftKeysOnly;
 
   /**
    * @private

src/ol/interaction/interactiondefaults.js

@@ -31,8 +31,7 @@ ol.interaction.defaults = function(opt_options, opt_interactions) {
   var altShiftDragRotate = goog.isDef(options.altShiftDragRotate) ?
       options.altShiftDragRotate : true;
   if (altShiftDragRotate) {
-    interactions.push(new ol.interaction.DragRotate(
-        ol.interaction.condition.altShiftKeysOnly));
+    interactions.push(new ol.interaction.DragRotate());
   }
 
   var doubleClickZoom = goog.isDef(options.doubleClickZoom) ?