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Filename : track.js
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"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Track = void 0;
var _react = _interopRequireDefault(require("react"));
var _classnames = _interopRequireDefault(require("classnames"));
var _innerSliderUtils = require("./utils/innerSliderUtils");
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _extends() { _extends = Object.assign ? Object.assign.bind() : function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a 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, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); Object.defineProperty(subClass, "prototype", { writable: false }); if (superClass) _setPrototypeOf(subClass, superClass); }
function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : String(i); }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
// given specifications/props for a slide, fetch all the classes that need to be applied to the slide
var getSlideClasses = function getSlideClasses(spec) {
  var slickActive, slickCenter, slickCloned;
  var centerOffset, index;
  if (spec.rtl) {
    index = spec.slideCount - 1 - spec.index;
  } else {
    index = spec.index;
  }
  slickCloned = index < 0 || index >= spec.slideCount;
  if (spec.centerMode) {
    centerOffset = Math.floor(spec.slidesToShow / 2);
    slickCenter = (index - spec.currentSlide) % spec.slideCount === 0;
    if (index > spec.currentSlide - centerOffset - 1 && index <= spec.currentSlide + centerOffset) {
      slickActive = true;
    }
  } else {
    slickActive = spec.currentSlide <= index && index < spec.currentSlide + spec.slidesToShow;
  }
  var focusedSlide;
  if (spec.targetSlide < 0) {
    focusedSlide = spec.targetSlide + spec.slideCount;
  } else if (spec.targetSlide >= spec.slideCount) {
    focusedSlide = spec.targetSlide - spec.slideCount;
  } else {
    focusedSlide = spec.targetSlide;
  }
  var slickCurrent = index === focusedSlide;
  return {
    "slick-slide": true,
    "slick-active": slickActive,
    "slick-center": slickCenter,
    "slick-cloned": slickCloned,
    "slick-current": slickCurrent // dubious in case of RTL
  };
};
var getSlideStyle = function getSlideStyle(spec) {
  var style = {};
  if (spec.variableWidth === undefined || spec.variableWidth === false) {
    style.width = spec.slideWidth;
  }
  if (spec.fade) {
    style.position = "relative";
    if (spec.vertical) {
      style.top = -spec.index * parseInt(spec.slideHeight);
    } else {
      style.left = -spec.index * parseInt(spec.slideWidth);
    }
    style.opacity = spec.currentSlide === spec.index ? 1 : 0;
    style.zIndex = spec.currentSlide === spec.index ? 999 : 998;
    if (spec.useCSS) {
      style.transition = "opacity " + spec.speed + "ms " + spec.cssEase + ", " + "visibility " + spec.speed + "ms " + spec.cssEase;
    }
  }
  return style;
};
var getKey = function getKey(child, fallbackKey) {
  return child.key || fallbackKey;
};
var renderSlides = function renderSlides(spec) {
  var key;
  var slides = [];
  var preCloneSlides = [];
  var postCloneSlides = [];
  var childrenCount = _react["default"].Children.count(spec.children);
  var startIndex = (0, _innerSliderUtils.lazyStartIndex)(spec);
  var endIndex = (0, _innerSliderUtils.lazyEndIndex)(spec);
  _react["default"].Children.forEach(spec.children, function (elem, index) {
    var child;
    var childOnClickOptions = {
      message: "children",
      index: index,
      slidesToScroll: spec.slidesToScroll,
      currentSlide: spec.currentSlide
    };

    // in case of lazyLoad, whether or not we want to fetch the slide
    if (!spec.lazyLoad || spec.lazyLoad && spec.lazyLoadedList.indexOf(index) >= 0) {
      child = elem;
    } else {
      child = /*#__PURE__*/_react["default"].createElement("div", null);
    }
    var childStyle = getSlideStyle(_objectSpread(_objectSpread({}, spec), {}, {
      index: index
    }));
    var slideClass = child.props.className || "";
    var slideClasses = getSlideClasses(_objectSpread(_objectSpread({}, spec), {}, {
      index: index
    }));
    // push a cloned element of the desired slide
    slides.push( /*#__PURE__*/_react["default"].cloneElement(child, {
      key: "original" + getKey(child, index),
      "data-index": index,
      className: (0, _classnames["default"])(slideClasses, slideClass),
      tabIndex: "-1",
      "aria-hidden": !slideClasses["slick-active"],
      style: _objectSpread(_objectSpread({
        outline: "none"
      }, child.props.style || {}), childStyle),
      onClick: function onClick(e) {
        child.props && child.props.onClick && child.props.onClick(e);
        if (spec.focusOnSelect) {
          spec.focusOnSelect(childOnClickOptions);
        }
      }
    }));

    // if slide needs to be precloned or postcloned
    if (spec.infinite && spec.fade === false) {
      var preCloneNo = childrenCount - index;
      if (preCloneNo <= (0, _innerSliderUtils.getPreClones)(spec)) {
        key = -preCloneNo;
        if (key >= startIndex) {
          child = elem;
        }
        slideClasses = getSlideClasses(_objectSpread(_objectSpread({}, spec), {}, {
          index: key
        }));
        preCloneSlides.push( /*#__PURE__*/_react["default"].cloneElement(child, {
          key: "precloned" + getKey(child, key),
          "data-index": key,
          tabIndex: "-1",
          className: (0, _classnames["default"])(slideClasses, slideClass),
          "aria-hidden": !slideClasses["slick-active"],
          style: _objectSpread(_objectSpread({}, child.props.style || {}), childStyle),
          onClick: function onClick(e) {
            child.props && child.props.onClick && child.props.onClick(e);
            if (spec.focusOnSelect) {
              spec.focusOnSelect(childOnClickOptions);
            }
          }
        }));
      }
      key = childrenCount + index;
      if (key < endIndex) {
        child = elem;
      }
      slideClasses = getSlideClasses(_objectSpread(_objectSpread({}, spec), {}, {
        index: key
      }));
      postCloneSlides.push( /*#__PURE__*/_react["default"].cloneElement(child, {
        key: "postcloned" + getKey(child, key),
        "data-index": key,
        tabIndex: "-1",
        className: (0, _classnames["default"])(slideClasses, slideClass),
        "aria-hidden": !slideClasses["slick-active"],
        style: _objectSpread(_objectSpread({}, child.props.style || {}), childStyle),
        onClick: function onClick(e) {
          child.props && child.props.onClick && child.props.onClick(e);
          if (spec.focusOnSelect) {
            spec.focusOnSelect(childOnClickOptions);
          }
        }
      }));
    }
  });
  if (spec.rtl) {
    return preCloneSlides.concat(slides, postCloneSlides).reverse();
  } else {
    return preCloneSlides.concat(slides, postCloneSlides);
  }
};
var Track = exports.Track = /*#__PURE__*/function (_React$PureComponent) {
  _inherits(Track, _React$PureComponent);
  var _super = _createSuper(Track);
  function Track() {
    var _this;
    _classCallCheck(this, Track);
    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }
    _this = _super.call.apply(_super, [this].concat(args));
    _defineProperty(_assertThisInitialized(_this), "node", null);
    _defineProperty(_assertThisInitialized(_this), "handleRef", function (ref) {
      _this.node = ref;
    });
    return _this;
  }
  _createClass(Track, [{
    key: "render",
    value: function render() {
      var slides = renderSlides(this.props);
      var _this$props = this.props,
        onMouseEnter = _this$props.onMouseEnter,
        onMouseOver = _this$props.onMouseOver,
        onMouseLeave = _this$props.onMouseLeave;
      var mouseEvents = {
        onMouseEnter: onMouseEnter,
        onMouseOver: onMouseOver,
        onMouseLeave: onMouseLeave
      };
      return /*#__PURE__*/_react["default"].createElement("div", _extends({
        ref: this.handleRef,
        className: "slick-track",
        style: this.props.trackStyle
      }, mouseEvents), slides);
    }
  }]);
  return Track;
}(_react["default"].PureComponent);