Remove ol.DRAG_BOX_HYSTERESIS_PIXELS define and add option

src/ol/index.js

@@ -47,12 +47,6 @@ ol.DEFAULT_TILE_SIZE = 256;
 ol.DEFAULT_WMS_VERSION = '1.3.0';
 
 
-/**
- * @define {number} Hysteresis pixels.
- */
-ol.DRAG_BOX_HYSTERESIS_PIXELS = 8;
-
-
 /**
  * @define {boolean} Enable the Canvas renderer.  Default is `true`. Setting
  *     this to false at compile time in advanced mode removes all code

src/ol/interaction/dragbox.js

@@ -8,15 +8,6 @@ goog.require('ol.interaction.Pointer');
 goog.require('ol.render.Box');
 
 
-/**
- * @const
- * @type {number}
- */
-ol.DRAG_BOX_HYSTERESIS_PIXELS_SQUARED =
-    ol.DRAG_BOX_HYSTERESIS_PIXELS *
-    ol.DRAG_BOX_HYSTERESIS_PIXELS;
-
-
 /**
  * @classdesc
  * Allows the user to draw a vector box by clicking and dragging on the map,
@@ -50,6 +41,12 @@ ol.interaction.DragBox = function(opt_options) {
    */
   this.box_ = new ol.render.Box(options.className || 'ol-dragbox');
 
+  /**
+   * @type {number}
+   * @private
+   */
+  this.minArea_ = options.minArea !== undefined ? options.minArea : 64;
+
   /**
    * @type {ol.Pixel}
    * @private
@@ -82,12 +79,10 @@ ol.inherits(ol.interaction.DragBox, ol.interaction.Pointer);
  * @param {ol.Pixel} endPixel The end pixel of the box.
  * @return {boolean} Whether or not the boxend condition should be fired.
  */
-ol.interaction.DragBox.defaultBoxEndCondition = function(mapBrowserEvent,
-    startPixel, endPixel) {
+ol.interaction.DragBox.defaultBoxEndCondition = function(mapBrowserEvent, startPixel, endPixel) {
   var width = endPixel[0] - startPixel[0];
   var height = endPixel[1] - startPixel[1];
-  return width * width + height * height >=
-      ol.DRAG_BOX_HYSTERESIS_PIXELS_SQUARED;
+  return width * width + height * height >= this.minArea_;
 };