From 0e81d2916831f394cfe03cad7a17f7dc19585b2d Mon Sep 17 00:00:00 2001
From: mourner <agafonkin@gmail.com>
Date: Fri, 2 Dec 2011 16:27:26 +0200
Subject: [PATCH] Fixed fast mouse wheel zoom when approaching min/max zoom

---
 CHANGELOG.md                   |  3 ++-
 src/handler/ScrollWheelZoom.js | 14 ++++++++------
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8e42ee37..96b86c4e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -44,8 +44,9 @@ Leaflet Changelog
 #### General bugfixes
 
  * Fixed a bug where `Circle` was rendered with incorrect radius (didn't take projection exagerration into account). [#331](https://github.com/CloudMade/Leaflet/issues/331)
+ * Fixed a bug where fast mouse wheel zoom worked incorrectly when approaching min/max zoom values.
  * Fixed a bug where map panning would stuck forever after releasing the mouse over an iframe or a flash object (thanks to [@sten82](https://github.com/sten82)). [#297](https://github.com/CloudMade/Leaflet/pull/297) [#64](https://github.com/CloudMade/Leaflet/issues/64)
- * Fixed a bug where mouse zoom worked incorrectly if map is inside scrolled container (partially by [@chrillo](https://github.com/chrillo)). [#206](https://github.com/CloudMade/Leaflet/issues/206)
+ * Fixed a bug where mouse wheel zoom worked incorrectly if map is inside scrolled container (partially by [@chrillo](https://github.com/chrillo)). [#206](https://github.com/CloudMade/Leaflet/issues/206)
  * Fixed a bug where it was possible to add the same listener twice. [#281](https://github.com/CloudMade/Leaflet/issues/281)
  * Fixed a bug where `Circle` was rendered with incorrect radius (didn't take projection exaggeration into account). [#331](https://github.com/CloudMade/Leaflet/issues/331)
  * Fixed a bug where `Marker` `setIcon` was not working properly (by [@marphi](https://github.com/marphi)). [#218](https://github.com/CloudMade/Leaflet/pull/218) [#311](https://github.com/CloudMade/Leaflet/issues/311)
diff --git a/src/handler/ScrollWheelZoom.js b/src/handler/ScrollWheelZoom.js
index 51137c39..ee544383 100644
--- a/src/handler/ScrollWheelZoom.js
+++ b/src/handler/ScrollWheelZoom.js
@@ -28,18 +28,20 @@ L.Handler.ScrollWheelZoom = L.Handler.extend({
 	},
 	
 	_performZoom: function() {
-		var delta = Math.round(this._delta);
+		var delta = Math.round(this._delta),
+			zoom = this._map.getZoom();
+
 		delta = Math.max(Math.min(delta, 4), -4);
+		delta = this._map._limitZoom(zoom + delta) - zoom;
+
 		this._delta = 0;
 		
 		if (!delta) { return; }
 		
-		var center = this._getCenterForScrollWheelZoom(this._lastMousePos, delta),
-			zoom = this._map.getZoom() + delta;
+		var newCenter = this._getCenterForScrollWheelZoom(this._lastMousePos, delta),
+			newZoom = zoom + delta;
 		
-		if (this._map._limitZoom(zoom) == this._map._zoom) { return; }
-
-		this._map.setView(center, zoom);
+		this._map.setView(newCenter, newZoom);
 	},
 	
 	_getCenterForScrollWheelZoom: function(mousePos, delta) {