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Conditionally deregister touchend listener

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Éric Lemoine
2013-12-17 17:20:25 +01:00
parent a2b24d86f9
commit 0e75e971d9
1 changed files with 13 additions and 7 deletions
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20
src/ol/mapbrowserevent.js
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@@ -398,12 +398,15 @@ ol.MapBrowserEventHandler.prototype.handleTouchStart_ = function(browserEvent) {
this.down_ = browserEvent;
this.dragged_ = false;
this.dragListenerKeys_ = [
goog.events.listen(goog.global.document, goog.events.EventType.TOUCHMOVE,
this.handleTouchMove_, false, this),
goog.events.listen(goog.global.document, goog.events.EventType.TOUCHEND,
this.handleTouchEnd_, false, this)
];
if (goog.isNull(this.dragListenerKeys_)) {
this.dragListenerKeys_ = [
goog.events.listen(goog.global.document, goog.events.EventType.TOUCHMOVE,
this.handleTouchMove_, false, this),
goog.events.listen(goog.global.document, goog.events.EventType.TOUCHEND,
this.handleTouchEnd_, false, this)
];
}
// FIXME check if/when this is necessary
browserEvent.preventDefault();
@@ -436,7 +439,10 @@ ol.MapBrowserEventHandler.prototype.handleTouchEnd_ = function(browserEvent) {
var newEvent = new ol.MapBrowserEvent(
ol.MapBrowserEvent.EventType.TOUCHEND, this.map_, browserEvent);
this.dispatchEvent(newEvent);
goog.array.forEach(this.dragListenerKeys_, goog.events.unlistenByKey);
if (browserEvent.getBrowserEvent().targetTouches.length === 0) {
goog.array.forEach(this.dragListenerKeys_, goog.events.unlistenByKey);
this.dragListenerKeys_ = null;
}
if (!this.dragged_) {
goog.asserts.assert(!goog.isNull(this.down_));
this.emulateClick_(this.down_);