mobinge/dist/snapdraggable.js

Client-heavy webcomic site display system

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };

var _reactDraggable = require('react-draggable');

var _reactDraggable2 = _interopRequireDefault(_reactDraggable);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var SnapDraggable = function (_Draggable) {
  _inherits(SnapDraggable, _Draggable);

  function SnapDraggable(props) {
    _classCallCheck(this, SnapDraggable);

    var _this = _possibleConstructorReturn(this, (SnapDraggable.__proto__ || Object.getPrototypeOf(SnapDraggable)).call(this, props));

    _this.state.x = -props.startX;
    _this.timeout = false;
    props.mover.draggable(_this);
    return _this;
  }

  _createClass(SnapDraggable, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      _get(SnapDraggable.prototype.__proto__ || Object.getPrototypeOf(SnapDraggable.prototype), 'componentDidMount', this).call(this);
    }
  }, {
    key: 'snapDistance',
    value: function snapDistance(distance) {
      this.snapTo(this.getLimit(this.state.x - distance));
    }
  }, {
    key: 'snapTo',
    value: function snapTo() {
      var newX = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.state.x;

      var _this2 = this;

      var newY = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.state.y;
      var ongoing = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

      if (isNaN(newX)) {
        throw 'Destination not a number.';
      }
      var moveInterval = 10;
      if (this.state.x == newX && this.state.y == newY) {
        this.timeout = false;
        return;
      }
      var newPosition = {
        x: this.getTickDestination(this.state.x, newX),
        y: this.getTickDestination(this.state.y, newY)
      };
      this.setState(newPosition);
      if (ongoing || !this.timeout) {
        this.timeout = setTimeout(function () {
          return _this2.snapTo(newX, newY, true);
        }, moveInterval);
      }
    }
  }, {
    key: 'getLimit',
    value: function getLimit(newX) {
      newX = Math.min(newX, this.props.bounds.right);
      newX = Math.max(newX, this.props.bounds.left);
      return newX;
    }

    // The distance to move between two numbers in a tick.

  }, {
    key: 'getTickDestination',
    value: function getTickDestination(current, goal) {
      var lastSnap = 8;
      var distance = Math.abs(current - goal);
      var steps = 12;
      if (distance < lastSnap) {
        return goal;
      }
      return goal > current ? current + distance / steps : current - distance / steps;
    }
  }]);

  return SnapDraggable;
}(_reactDraggable2.default);

exports.default = SnapDraggable;