Effects: Remove additional parameters of easings

mr21 · mgol · commit b7a7dea95f84 · 2015-09-07T22:07:32.000+02:00
Fixes gh-2367 Closes gh-2376
diff --git a/src/effects/Tween.js b/src/effects/Tween.js
@@ -27,17 +27,12 @@ Tween.prototype = {
 			Tween.propHooks._default.get( this );
 	},
 	run: function( percent ) {
-		var eased,
-			hooks = Tween.propHooks[ this.prop ];
+		var hooks = Tween.propHooks[ this.prop ];
 
-		if ( this.options.duration ) {
-			this.pos = eased = jQuery.easing[ this.easing ](
-				percent, this.options.duration * percent, 0, 1, this.options.duration
-			);
-		} else {
-			this.pos = eased = percent;
-		}
-		this.now = ( this.end - this.start ) * eased + this.start;
+		this.pos = this.options.duration ?
+			jQuery.easing[ this.easing ]( percent ) :
+			percent;
+		this.now = ( this.end - this.start ) * this.pos + this.start;
 
 		if ( this.options.step ) {
 			this.options.step.call( this.elem, this.now, this );
diff --git a/test/unit/tween.js b/test/unit/tween.js
@@ -160,8 +160,7 @@ QUnit.test( "jQuery.Tween - Plain Object", function( assert ) {
 
 	assert.equal( tween.now, 90, "Calculated tween" );
 
-	assert.ok( easingSpy.calledWith( 0.1, 0.1 * testOptions.duration, 0, 1, testOptions.duration ),
-		"...using jQuery.easing.linear with back-compat arguments" );
+	assert.ok( easingSpy.calledWith( 0.1 ), "...using jQuery.easing.linear" );
 	assert.equal( testObject.test, 90, "Set value" );
 
 	tween.run( 1 );
@@ -200,10 +199,7 @@ QUnit.test( "jQuery.Tween - Element", function( assert ) {
 	eased = 100 - ( jQuery.easing.swing( 0.1 ) * 100 );
 	assert.equal( tween.now, eased, "Calculated tween" );
 
-	assert.ok(
-		easingSpy.calledWith( 0.1, 0.1 * testOptions.duration, 0, 1, testOptions.duration ),
-		"...using jQuery.easing.linear with back-compat arguments"
-	);
+	assert.ok( easingSpy.calledWith( 0.1 ), "...using jQuery.easing.linear" );
 	assert.equal(
 		parseFloat( testElement.style.height ).toFixed( 2 ),
 		eased.toFixed( 2 ), "Set value"
