react-slick
Version:
React port of slick carousel
227 lines (224 loc) • 12.5 kB
JavaScript
;
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);