@antmjs/vantui
Version:
一套适用于Taro3及React的vantui组件库
207 lines (205 loc) • 9.15 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = exports.InfiniteScroll = void 0;
var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));
var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));
var _taro = require("@tarojs/taro");
var _components = require("@tarojs/components");
var _react = require("react");
var _loading = require("../loading");
var _defaultProps = require("../default-props");
var _jsxRuntime = require("react/jsx-runtime");
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { (0, _defineProperty2.default)(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
var clsPrefix = "van-infinite-scroll";
var compInitIndex = 0;
function InfiniteScroll_(props, ref) {
var _useState = (0, _react.useState)((0, _defaultProps.get)().InfiniteScroll),
_useState2 = (0, _slicedToArray2.default)(_useState, 1),
d = _useState2[0];
var _d$props = _objectSpread(_objectSpread({}, d), props),
renderLoading = _d$props.renderLoading,
renderComplete = _d$props.renderComplete,
renderError = _d$props.renderError,
parentClassName = _d$props.parentClassName,
loadMore = _d$props.loadMore,
_d$props$className = _d$props.className,
className = _d$props$className === void 0 ? '' : _d$props$className,
_d$props$completeText = _d$props.completeText,
completeText = _d$props$completeText === void 0 ? '没有更多了～' : _d$props$completeText,
_d$props$loadingText = _d$props.loadingText,
loadingText = _d$props$loadingText === void 0 ? '加载中...' : _d$props$loadingText,
_d$props$errorText = _d$props.errorText,
errorText = _d$props$errorText === void 0 ? '加载失败' : _d$props$errorText,
_d$props$reloadText = _d$props.reloadText,
reloadText = _d$props$reloadText === void 0 ? '重新加载' : _d$props$reloadText;
var _useState3 = (0, _react.useState)('loading'),
_useState4 = (0, _slicedToArray2.default)(_useState3, 2),
status = _useState4[0],
setStatus = _useState4[1];
var _useState5 = (0, _react.useState)(false),
_useState6 = (0, _slicedToArray2.default)(_useState5, 2),
onRequest = _useState6[0],
setOnRequest = _useState6[1];
var contentObserver = (0, _react.useRef)();
var _useState7 = (0, _react.useState)(compInitIndex++),
_useState8 = (0, _slicedToArray2.default)(_useState7, 1),
compIndex = _useState8[0];
var thisDom = (0, _react.useRef)();
var _useState9 = (0, _react.useState)(0),
_useState10 = (0, _slicedToArray2.default)(_useState9, 2),
forceKey = _useState10[0],
setForceKey = _useState10[1]; // 解决IntersectionObserver中执行loadmore时无法拿到最新的俩是state
var reset = (0, _react.useCallback)(function (needLoad) {
return new Promise(function (resolve) {
(0, _taro.nextTick)(function () {
if (needLoad) setForceKey(Date.now());else setForceKey(0);
setStatus('loading');
setOnRequest(false);
resolve(null);
});
});
}, []);
var _loadMore = (0, _react.useCallback)( /*#__PURE__*/function () {
var _ref = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(immediately) {
var _status;
return _regenerator.default.wrap(function _callee$(_context) {
while (1) switch (_context.prev = _context.next) {
case 0:
if (!(!onRequest && status === 'loading' || immediately)) {
_context.next = 6;
break;
}
setOnRequest(true);
_context.next = 4;
return loadMore();
case 4:
_status = _context.sent;
// 确保等待渲染任务执行完成
setTimeout(function () {
(0, _taro.nextTick)(function () {
setStatus(_status);
setOnRequest(false);
});
}, 60);
case 6:
case "end":
return _context.stop();
}
}, _callee);
}));
return function (_x) {
return _ref.apply(this, arguments);
};
}(), [loadMore, onRequest, status]);
(0, _react.useEffect)(function () {
return function () {
reset();
};
// eslint-disable-next-line react-hooks/exhaustive-deps
}, []);
(0, _react.useEffect)(function () {
if (forceKey !== 0) _loadMore();
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [forceKey]);
var initObserveH5 = (0, _react.useCallback)(function () {
var options = {
threshold: [0.6]
};
if (parentClassName) options.root = document.getElementsByClassName(parentClassName)[0];
var contentObserver_ = new IntersectionObserver(function (res) {
var target = res[0];
if (target && target.intersectionRatio >= 0.6) {
setForceKey(Math.random() + target.time);
}
}, options);
contentObserver.current = contentObserver_;
contentObserver.current.observe(thisDom.current);
}, [parentClassName]);
var initObserve = (0, _react.useCallback)(function () {
if (contentObserver.current != null) {
contentObserver.current.disconnect();
}
if (process.env.TARO_ENV === 'h5') {
return initObserveH5();
}
var pages = (0, _taro.getCurrentPages)();
var curePage = pages[pages.length - 1];
var _createIntersectionObserver = curePage.createIntersectionObserver;
if (process.env.TARO_ENV === 'alipay' || process.env.TARO_ENV === 'dd') {
_createIntersectionObserver = _taro.createIntersectionObserver;
}
var contentObserver_ = _createIntersectionObserver({
thresholds: [0.6]
});
contentObserver.current = contentObserver_;
if (parentClassName) {
contentObserver.current.relativeTo(".".concat(parentClassName));
} else {
contentObserver.current.relativeToViewport({
bottom: 0
});
}
contentObserver.current.observe(".".concat(clsPrefix).concat(compIndex), function (res) {
if (res.intersectionRatio > 0) {
setForceKey(Math.random() + res.time);
}
});
}, [compIndex, initObserveH5, parentClassName]);
(0, _react.useEffect)(function () {
setTimeout(function () {
initObserve();
}, 66);
return function () {
if (contentObserver.current != null) {
contentObserver.current.disconnect();
}
};
// eslint-disable-next-line react-hooks/exhaustive-deps
}, []);
var retry = (0, _react.useCallback)(function () {
reset();
_loadMore(true);
}, [_loadMore, reset]);
(0, _react.useImperativeHandle)(ref, function () {
return {
reset: reset
};
});
return /*#__PURE__*/(0, _jsxRuntime.jsxs)(_components.View, {
className: "".concat(clsPrefix, " ").concat(clsPrefix).concat(compIndex, " ").concat(className),
ref: thisDom,
children: [status === 'loading' && /*#__PURE__*/(0, _jsxRuntime.jsx)(_jsxRuntime.Fragment, {
children: renderLoading || /*#__PURE__*/(0, _jsxRuntime.jsx)(_loading.Loading, {
size: 24,
className: "".concat(clsPrefix, "-loading"),
children: loadingText
})
}), status === 'complete' && /*#__PURE__*/(0, _jsxRuntime.jsx)(_jsxRuntime.Fragment, {
children: renderComplete || /*#__PURE__*/(0, _jsxRuntime.jsx)(_components.View, {
className: "".concat(clsPrefix, "-complete"),
children: completeText
})
}), status === 'error' && /*#__PURE__*/(0, _jsxRuntime.jsx)(_jsxRuntime.Fragment, {
children: renderError || /*#__PURE__*/(0, _jsxRuntime.jsxs)(_components.View, {
className: "".concat(clsPrefix, "-error"),
children: [/*#__PURE__*/(0, _jsxRuntime.jsx)(_components.Text, {
children: errorText
}), /*#__PURE__*/(0, _jsxRuntime.jsx)(_components.Text, {
className: "reload-btn",
onClick: retry,
children: reloadText
})]
})
})]
});
}
var InfiniteScroll = /*#__PURE__*/(0, _react.forwardRef)(InfiniteScroll_);
exports.InfiniteScroll = InfiniteScroll;
var _default = InfiniteScroll;
exports.default = _default;