tools/side_chain_tool/web/node_modules/jquery/src/effects/Tween.js

   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 } );