replace CSS transitions in pan animations with frames

build/deps.js

@@ -227,19 +227,13 @@ var deps = {
 	AnimationPan: {
 		src: [
 			'dom/DomEvent.js',
-			'dom/PosAnimation.js',
+			'dom/PosAnimation.Timer.js',
 			'map/anim/Map.PanAnimation.js'
 			],
 		heading: 'Animation',
 		desc: 'Core panning animation support.'
 	},
 
-	AnimationTimer: {
-		src: ['dom/PosAnimation.Timer.js'],
-		deps: ['AnimationPan'],
-		desc: 'Timer-based pan animation fallback for browsers that don\'t support CSS3 transitions.'
-	},
-
 	AnimationZoom: {
 		src: [
 			'map/anim/Map.ZoomAnimation.js',

spec/suites/dom/PosAnimationSpec.js

@@ -1,27 +0,0 @@
-describe('PosAnimation', function () {
-	var el;
-
-	beforeEach(function () {
-		el = document.createElement('div');
-		this.subject = new L.PosAnimation();
-		this.subject._el = el;
-	});
-
-	describe('#_onStep', function () {
-		it("sets element position and fires step event if it is able to get current position", function () {
-			var point = new L.Point(5, 5, true);
-			sinon.stub(this.subject, '_getPos').returns(point);
-			this.subject.fire = sinon.stub();
-			this.subject._onStep();
-			expect(this.subject.fire.withArgs('step').calledOnce).to.be(true);
-			expect(L.DomUtil.getPosition(this.subject._el)).to.be(point);
-		});
-
-		it('stops transition if a position returned', function () {
-			sinon.stub(this.subject, '_onTransitionEnd');
-			sinon.stub(this.subject, '_getPos').returns(undefined);
-			this.subject._onStep();
-			expect(this.subject._onTransitionEnd.calledOnce).to.be(true);
-		});
-	});
-});

src/dom/PosAnimation.Timer.js

@@ -1,9 +1,8 @@
 /*
- * L.PosAnimation fallback implementation that powers Leaflet pan animations
+ * L.PosAnimation powers Leaflet pan animations internally.
- * in browsers that don't support CSS3 Transitions.
  */
 
-L.PosAnimation = L.DomUtil.TRANSITION ? L.PosAnimation : L.PosAnimation.extend({
+L.PosAnimation = L.Evented.extend({
 
 	run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number])
 		this.stop();