Allow freehand drawing without a modifier key

externs/olx.js

@@ -2695,6 +2695,16 @@ olx.interaction.DrawOptions.prototype.geometryName;
 olx.interaction.DrawOptions.prototype.condition;
 
 
+/**
+ * Operate in freehand mode for lines, polygons, and circles.  This makes the
+ * interaction always operate in freehand mode and takes precedence over any
+ * `freehandCondition` option.
+ * @type {boolean|undefined}
+ * @api
+ */
+olx.interaction.DrawOptions.prototype.freehand;
+
+
 /**
  * Condition that activates freehand drawing for lines and polygons. This
  * function takes an {@link ol.MapBrowserEvent} and returns a boolean to

src/ol/interaction/draw.js

@@ -251,8 +251,13 @@ ol.interaction.Draw = function(options) {
    * @private
    * @type {ol.EventsConditionType}
    */
-  this.freehandCondition_ = options.freehandCondition ?
-      options.freehandCondition : ol.events.condition.shiftKeyOnly;
+  this.freehandCondition_;
+  if (options.freehand) {
+    this.freehandCondition_ = ol.events.condition.always;
+  } else {
+    this.freehandCondition_ = options.freehandCondition ?
+        options.freehandCondition : ol.events.condition.shiftKeyOnly;
+  }
 
   ol.events.listen(this,
       ol.Object.getChangeEventType(ol.interaction.Interaction.Property.ACTIVE),
@@ -319,15 +324,15 @@ ol.interaction.Draw.handleEvent = function(mapBrowserEvent) {
  * @private
  */
 ol.interaction.Draw.handleDownEvent_ = function(event) {
-  if (this.condition_(event)) {
-    this.downPx_ = event.pixel;
-    return true;
-  } else if (this.freehand_) {
+  if (this.freehand_) {
     this.downPx_ = event.pixel;
     if (!this.finishCoordinate_) {
       this.startDrawing_(event);
     }
     return true;
+  } else if (this.condition_(event)) {
+    this.downPx_ = event.pixel;
+    return true;
   } else {
     return false;
   }