base dragrotateinteraction on pointer interaction

src/ol/interaction/dragboxinteraction.js

@@ -63,7 +63,8 @@ goog.inherits(ol.DragBoxEvent, goog.events.Event);
 
 /**
  * Allows the user to zoom the map by clicking and dragging on the map,
- * when the shift key is held down.
+ * normally combined with an {@link ol.events.condition} that limits
+ * it to when the shift key is held down.
  *
  * This interaction is only supported for mouse devices.
  *
@@ -107,25 +108,11 @@ ol.interaction.DragBox = function(opt_options) {
 goog.inherits(ol.interaction.DragBox, ol.interaction.PointerInteraction);
 
 
-/**
- * Returns true if the pointer event is generated by a mouse pointer.
- * @param {ol.MapBrowserPointerEvent} mapBrowserEvent
- * @return {boolean}
- */
-ol.interaction.DragBox.prototype.isMousePointer =
-    function(mapBrowserEvent) {
-  /* pointerId must be 1 for mouse devices,
-   * see: http://www.w3.org/Submission/pointer-events/#pointerevent-interface
-   */
-  return mapBrowserEvent.pointerEvent.pointerId == 1;
-};
-
-
 /**
  * @inheritDoc
  */
 ol.interaction.DragBox.prototype.handlePointerDrag = function(mapBrowserEvent) {
-  if (!this.isMousePointer(mapBrowserEvent)) {
+  if (!ol.events.condition.mouseOnly(mapBrowserEvent)) {
     return;
   }
 
@@ -154,7 +141,7 @@ ol.interaction.DragBox.prototype.onBoxEnd = goog.nullFunction;
  */
 ol.interaction.DragBox.prototype.handlePointerUp =
     function(mapBrowserEvent) {
-  if (!this.isMousePointer(mapBrowserEvent)) {
+  if (!ol.events.condition.mouseOnly(mapBrowserEvent)) {
     return false;
   }
 
@@ -177,7 +164,7 @@ ol.interaction.DragBox.prototype.handlePointerUp =
  */
 ol.interaction.DragBox.prototype.handlePointerDown =
     function(mapBrowserEvent) {
-  if (!this.isMousePointer(mapBrowserEvent)) {
+  if (!ol.events.condition.mouseOnly(mapBrowserEvent)) {
     return false;
   }