1 files changed, 41 insertions, 0 deletions
diff --git a/extlib/leaflet/src/dom/DomEvent.DoubleTap.js b/extlib/leaflet/src/dom/DomEvent.DoubleTap.js
new file mode 100644
index 00000000..08bd79b9
--- /dev/null
+++ b/extlib/leaflet/src/dom/DomEvent.DoubleTap.js
@@ -0,0 +1,41 @@
+L.Util.extend(L.DomEvent, {
+	// inspired by Zepto touch code by Thomas Fuchs
+	addDoubleTapListener: function(obj, handler, id) {
+		var last,
+			doubleTap = false,
+			delay = 250,
+			touch,
+			pre = '_leaflet_',
+			touchstart = 'touchstart',
+			touchend = 'touchend';
+		
+		function onTouchStart(e) {
+			if (e.touches.length != 1) return;
+			
+			var now = Date.now(), 
+				delta = now - (last || now);
+			
+			touch = e.touches[0];
+			doubleTap = (delta > 0 && delta <= delay);
+			last = now;
+		}
+		function onTouchEnd(e) {
+			if (doubleTap) {
+				touch.type = 'dblclick';
+				handler(touch);
+				last = null;
+			}
+		}
+		obj[pre + touchstart + id] = onTouchStart;
+		obj[pre + touchend + id] = onTouchEnd;
+		
+		obj.addEventListener(touchstart, onTouchStart, false);
+		obj.addEventListener(touchend, onTouchEnd, false);
+	},
+	
+	removeDoubleTapListener: function(obj, id) {
+		var pre = '_leaflet_';
+		obj.removeEventListener(obj, obj[pre + 'touchstart' + id], false);
+		obj.removeEventListener(obj, obj[pre + 'touchend' + id], false);
+	}
+});
+\ No newline at end of file