Allow clicks to be stopped while drawing

src/ol/interaction/draw.js

@@ -97,6 +97,14 @@ ol.interaction.Draw = function(options) {
    */
   this.mode_ = ol.interaction.Draw.getMode_(this.type_);
 
+  /**
+   * Stop click, singleclick, and doubleclick events from firing during drawing.
+   * Default is `false`.
+   * @type {boolean}
+   * @private
+   */
+  this.stopClick_ = !!options.stopClick;
+
   /**
    * The number of points that must be drawn before a polygon ring or line
    * string can be finished.  The default is 3 for polygon rings and 2 for
@@ -384,6 +392,9 @@ ol.interaction.Draw.handleUpEvent_ = function(event) {
     this.finishCoordinate_ = null;
     this.abortDrawing_();
   }
+  if (!pass && this.stopClick_) {
+    event.stopPropagation();
+  }
   return pass;
 };