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Handle unlistening in base class

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This commit is contained in:
Tom Payne
2013-04-05 20:54:27 +02:00
parent 06bcab8374
commit 25eb18d2c8
3 changed files with 17 additions and 37 deletions
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16
src/ol/control/dragboxcontrol.js
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@@ -42,12 +42,6 @@ ol.control.DragBox = function(dragBoxOptions) {
*/
this.startCoordinate_ = dragBoxOptions.startCoordinate;
/**
* @private
* @type {?number}
*/
this.dragListenKey_ = null;
goog.base(this, {
element: element,
map: dragBoxOptions.map
@@ -61,19 +55,15 @@ goog.inherits(ol.control.DragBox, ol.control.Control);
* @inheritDoc
*/
ol.control.DragBox.prototype.setMap = function(map) {
if (!goog.isNull(this.dragListenKey_)) {
goog.events.unlistenByKey(this.dragListenKey_);
this.dragListenKey_ = null;
}
goog.base(this, 'setMap', map);
if (!goog.isNull(map)) {
this.startPixel_ = map.getPixelFromCoordinate(this.startCoordinate_);
goog.asserts.assert(goog.isDef(this.startPixel_));
goog.style.setPosition(this.element, this.startPixel_);
goog.style.setBorderBoxSize(this.element, new ol.Size(0, 0));
this.dragListenKey_ = goog.events.listen(
map, ol.MapBrowserEvent.EventType.DRAG, this.updateBox_, false, this);
this.listenerKeys.push(goog.events.listen(
map, ol.MapBrowserEvent.EventType.DRAG, this.updateBox_, false, this));
}
goog.base(this, 'setMap', map);
};