// Module ID: 5670
// Function ID: 5671
// Name: VelocityTracker
// Dependencies: [5638, 5639]

// Module 5670 (VelocityTracker)
import VelocityTracker from "_classCallCheck";

class VelocityTracker {
  constructor() {
    tmp = VelocityTracker(this, VelocityTracker);
    this.lastUpdateTime = Date.now();
    this.velocity = { x: 0, y: 0 };
    this.timeoutId = null;
    return;
  }
}
const items = [
  {
    key: "computeVelocity",
    value: function computeVelocity(arg0, absoluteLastScrollOffset, arg2, arg3) {
      let self = this;
      self = this;
      let closure_0 = arg3;
      this.cleanUp();
      const timestamp = Date.now();
      const diff = arg0 - absoluteLastScrollOffset;
      const result = diff / Math.max(1, timestamp - this.lastUpdateTime);
      this.lastUpdateTime = timestamp;
      let num = 0;
      if (arg2) {
        num = result;
      }
      this.velocity.x = num;
      let num2 = 0;
      if (!arg2) {
        num2 = result;
      }
      self.velocity.y = num2;
      arg3(self.velocity, false);
      self.timeoutId = setTimeout(() => {
        self.cleanUp();
        self.lastUpdateTime = Date.now();
        self.velocity.x = 0;
        self.velocity.y = 0;
        callback(self.velocity, true);
      }, 100);
    }
  },
  {
    key: "cleanUp",
    value: function cleanUp() {
      const self = this;
      if (null !== this.timeoutId) {
        const _clearTimeout = clearTimeout;
        clearTimeout(self.timeoutId);
        self.timeoutId = null;
      }
    }
  }
];

export const VelocityTracker = require("_createClass")(VelocityTracker, items);