waveform-playlist-nartj/lib/track/states/FadeInState.js

Multiple track web audio editor and player with waveform preview

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));

var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));

var _conversions = require("../../utils/conversions");

var _default = /*#__PURE__*/function () {
  function _default(track) {
    (0, _classCallCheck2["default"])(this, _default);
    this.track = track;
  }

  (0, _createClass2["default"])(_default, [{
    key: "setup",
    value: function setup(samplesPerPixel, sampleRate) {
      this.samplesPerPixel = samplesPerPixel;
      this.sampleRate = sampleRate;
    }
  }, {
    key: "click",
    value: function click(e) {
      var startX = e.offsetX;
      var time = (0, _conversions.pixelsToSeconds)(startX, this.samplesPerPixel, this.sampleRate);

      if (time > this.track.getStartTime() && time < this.track.getEndTime()) {
        this.track.ee.emit('fadein', time - this.track.getStartTime(), this.track);
      }
    }
  }], [{
    key: "getClass",
    value: function getClass() {
      return '.state-fadein';
    }
  }, {
    key: "getEvents",
    value: function getEvents() {
      return ['click'];
    }
  }]);
  return _default;
}();

exports["default"] = _default;