src/src/fx/easing/Linear.js

   1 /**
   2  * @private
   3  */
   4 Ext.define('Ext.fx.easing.Linear', {
   5
   6     extend: 'Ext.fx.easing.Abstract',
   7
   8     alias: 'easing.linear',
   9
  10     config: {
  11         duration: 0,
  12         endValue: 0
  13     },
  14
  15     updateStartValue: function(startValue) {
  16         this.distance = this.getEndValue() - startValue;
  17     },
  18
  19     updateEndValue: function(endValue) {
  20         this.distance = endValue - this.getStartValue();
  21     },
  22
  23     getValue: function() {
  24         var deltaTime = Ext.Date.now() - this.getStartTime(),
  25             duration = this.getDuration();
  26
  27         if (deltaTime > duration) {
  28             this.isEnded = true;
  29             return this.getEndValue();
  30         }
  31         else {
  32             return this.getStartValue() + ((deltaTime / duration) * this.distance);
  33         }
  34     }
  35 });