From 8edc2be103920a7ca31b6627c751c09bd278add9 Mon Sep 17 00:00:00 2001
From: simonseyock <simonseyock@gmail.com>
Date: Thu, 1 Dec 2016 16:06:13 +0100
Subject: [PATCH] Added hitTolerance to TranslateInteraction

---
 externs/olx.js                  | 13 ++++++++++++-
 src/ol/interaction/select.js    |  4 ++++
 src/ol/interaction/translate.js | 31 ++++++++++++++++++++++++++++++-
 3 files changed, 46 insertions(+), 2 deletions(-)

diff --git a/externs/olx.js b/externs/olx.js
index 8056fa3203..30411d8546 100644
--- a/externs/olx.js
+++ b/externs/olx.js
@@ -2910,7 +2910,8 @@ olx.interaction.ExtentOptions.prototype.wrapX;
 /**
  * @typedef {{
  *     features: (ol.Collection.<ol.Feature>|undefined),
- *     layers: (undefined|Array.<ol.layer.Layer>|function(ol.layer.Layer): boolean)
+ *     layers: (undefined|Array.<ol.layer.Layer>|function(ol.layer.Layer): boolean),
+ *     hitTolerance: (number|undefined)
  * }}
  */
 olx.interaction.TranslateOptions;
@@ -2937,6 +2938,16 @@ olx.interaction.TranslateOptions.prototype.features;
 olx.interaction.TranslateOptions.prototype.layers;
 
 
+/**
+ * Hit-detection tolerance. Pixels inside the radius around the given position
+ * will be checked for features. This only works for the canvas renderer and
+ * not for WebGL.
+ * @type {number|undefined}
+ * @api
+ */
+olx.interaction.TranslateOptions.prototype.hitTolerance;
+
+
 /**
  * @typedef {{condition: (ol.EventsConditionType|undefined),
  *     duration: (number|undefined),
diff --git a/src/ol/interaction/select.js b/src/ol/interaction/select.js
index dbcd376efc..55d6f6c740 100644
--- a/src/ol/interaction/select.js
+++ b/src/ol/interaction/select.js
@@ -82,6 +82,10 @@ ol.interaction.Select = function(opt_options) {
   this.filter_ = options.filter ? options.filter :
       ol.functions.TRUE;
 
+  /**
+   * @private
+   * @type {number}
+   */
   this.hitTolerance_ = options.hitTolerance ? options.hitTolerance : 0;
 
   var featureOverlay = new ol.layer.Vector({
diff --git a/src/ol/interaction/translate.js b/src/ol/interaction/translate.js
index b1aade1db1..68f0864b0f 100644
--- a/src/ol/interaction/translate.js
+++ b/src/ol/interaction/translate.js
@@ -70,6 +70,12 @@ ol.interaction.Translate = function(opt_options) {
    */
   this.layerFilter_ = layerFilter;
 
+  /**
+   * @private
+   * @type {number}
+   */
+  this.hitTolerance_ = options.hitTolerance ? options.hitTolerance : 0;
+
   /**
    * @type {ol.Feature}
    * @private
@@ -198,11 +204,34 @@ ol.interaction.Translate.prototype.featuresAtPixel_ = function(pixel, map) {
           return feature;
         }
       }, this, {
-        layerFilter: this.layerFilter_
+        layerFilter: this.layerFilter_,
+        hitTolerance: this.hitTolerance_
       });
 };
 
 
+/**
+ * Returns the Hit-detection tolerance.
+ * @returns {number} Hit tolerance.
+ * @api
+ */
+ol.interaction.Translate.prototype.getHitTolerance = function() {
+  return this.hitTolerance_;
+};
+
+
+/**
+ * Hit-detection tolerance. Pixels inside the radius around the given position
+ * will be checked for features. This only works for the canvas renderer and
+ * not for WebGL.
+ * @param {number} hitTolerance Hit tolerance.
+ * @api
+ */
+ol.interaction.Translate.prototype.setHitTolerance = function(hitTolerance) {
+  this.hitTolerance_ = hitTolerance;
+};
+
+
 /**
  * @classdesc
  * Events emitted by {@link ol.interaction.Translate} instances are instances of