Mercurial > nebulaweb3

comparison default/node_modules/jquery/src/effects/Tween.js @ 0:1d038bc9b3d2 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Up:default
author Liny <dev@neowd.com>
date Sat, 31 May 2025 09:21:51 +0800
parents
children
comparison
equal deleted inserted replaced
-1:000000000000 0:1d038bc9b3d2
1 define( [
2 "../core",
3 "../css"
4 ], function( jQuery ) {
5
6 "use strict";
7
8 function Tween( elem, options, prop, end, easing ) {
9 return new Tween.prototype.init( elem, options, prop, end, easing );
10 }
11 jQuery.Tween = Tween;
12
13 Tween.prototype = {
14 constructor: Tween,
15 init: function( elem, options, prop, end, easing, unit ) {
16 this.elem = elem;
17 this.prop = prop;
18 this.easing = easing || jQuery.easing._default;
19 this.options = options;
20 this.start = this.now = this.cur();
21 this.end = end;
22 this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
23 },
24 cur: function() {
25 var hooks = Tween.propHooks[ this.prop ];
26
27 return hooks && hooks.get ?
28 hooks.get( this ) :
29 Tween.propHooks._default.get( this );
30 },
31 run: function( percent ) {
32 var eased,
33 hooks = Tween.propHooks[ this.prop ];
34
35 if ( this.options.duration ) {
36 this.pos = eased = jQuery.easing[ this.easing ](
37 percent, this.options.duration * percent, 0, 1, this.options.duration
38 );
39 } else {
40 this.pos = eased = percent;
41 }
42 this.now = ( this.end - this.start ) * eased + this.start;
43
44 if ( this.options.step ) {
45 this.options.step.call( this.elem, this.now, this );
46 }
47
48 if ( hooks && hooks.set ) {
49 hooks.set( this );
50 } else {
51 Tween.propHooks._default.set( this );
52 }
53 return this;
54 }
55 };
56
57 Tween.prototype.init.prototype = Tween.prototype;
58
59 Tween.propHooks = {
60 _default: {
61 get: function( tween ) {
62 var result;
63
64 // Use a property on the element directly when it is not a DOM element,
65 // or when there is no matching style property that exists.
66 if ( tween.elem.nodeType !== 1 ||
67 tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
68 return tween.elem[ tween.prop ];
69 }
70
71 // Passing an empty string as a 3rd parameter to .css will automatically
72 // attempt a parseFloat and fallback to a string if the parse fails.
73 // Simple values such as "10px" are parsed to Float;
74 // complex values such as "rotate(1rad)" are returned as-is.
75 result = jQuery.css( tween.elem, tween.prop, "" );
76
77 // Empty strings, null, undefined and "auto" are converted to 0.
78 return !result || result === "auto" ? 0 : result;
79 },
80 set: function( tween ) {
81
82 // Use step hook for back compat.
83 // Use cssHook if its there.
84 // Use .style if available and use plain properties where available.
85 if ( jQuery.fx.step[ tween.prop ] ) {
86 jQuery.fx.step[ tween.prop ]( tween );
87 } else if ( tween.elem.nodeType === 1 &&
88 ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null ||
89 jQuery.cssHooks[ tween.prop ] ) ) {
90 jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
91 } else {
92 tween.elem[ tween.prop ] = tween.now;
93 }
94 }
95 }
96 };
97
98 // Support: IE <=9 only
99 // Panic based approach to setting things on disconnected nodes
100 Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
101 set: function( tween ) {
102 if ( tween.elem.nodeType && tween.elem.parentNode ) {
103 tween.elem[ tween.prop ] = tween.now;
104 }
105 }
106 };
107
108 jQuery.easing = {
109 linear: function( p ) {
110 return p;
111 },
112 swing: function( p ) {
113 return 0.5 - Math.cos( p * Math.PI ) / 2;
114 },
115 _default: "swing"
116 };
117
118 jQuery.fx = Tween.prototype.init;
119
120 // Back compat <1.8 extension point
121 jQuery.fx.step = {};
122
123 } );