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-rw-r--r--src/effects/Tween.js15
-rw-r--r--test/unit/tween.js8
2 files changed, 7 insertions, 16 deletions
diff --git a/src/effects/Tween.js b/src/effects/Tween.js
index d26ddd918..47f15a947 100644
--- 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
index 28fcfad25..f66aa37b6 100644
--- 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"