bc518174
 王天杨
提交两个项目文件
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = void 0;
var _propTypes = _interopRequireDefault(require("prop-types"));
var _react = _interopRequireDefault(require("react"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
function _extends() { _extends = Object.assign || 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 _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }
function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
var Masonry = /*#__PURE__*/function (_React$Component) {
_inheritsLoose(Masonry, _React$Component);
function Masonry() {
var _this;
_this = _React$Component.call(this) || this;
_this.state = {
columns: [],
childRefs: [],
hasDistributed: false
};
return _this;
}
var _proto = Masonry.prototype;
_proto.componentDidUpdate = function componentDidUpdate() {
if (!this.state.hasDistributed && !this.props.sequential) this.distributeChildren();
};
Masonry.getDerivedStateFromProps = function getDerivedStateFromProps(props, state) {
var children = props.children,
columnsCount = props.columnsCount;
var hasColumnsChanged = columnsCount !== state.columns.length;
if (state && children === state.children && !hasColumnsChanged) return null;
return _extends({}, Masonry.getEqualCountColumns(children, columnsCount), {
children: children,
hasDistributed: false
});
};
_proto.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {
return nextProps.children !== this.state.children || nextProps.columnsCount !== this.props.columnsCount;
};
_proto.distributeChildren = function distributeChildren() {
var _this2 = this;
var _this$props = this.props,
children = _this$props.children,
columnsCount = _this$props.columnsCount;
var columnHeights = Array(columnsCount).fill(0);
var isReady = this.state.childRefs.every(function (ref) {
return ref.current.getBoundingClientRect().height;
});
if (!isReady) return;
var columns = Array.from({
length: columnsCount
}, function () {
return [];
});
var validIndex = 0;
_react["default"].Children.forEach(children, function (child) {
if (child && _react["default"].isValidElement(child)) {
// .current is undefined if ref was passed to a functional component without forwardRef
// now passing ref into a wrapper div so it should always be defined
var childHeight = _this2.state.childRefs[validIndex].current.getBoundingClientRect().height;
var minHeightColumnIndex = columnHeights.indexOf(Math.min.apply(Math, columnHeights));
columnHeights[minHeightColumnIndex] += childHeight;
columns[minHeightColumnIndex].push(child);
validIndex++;
}
});
this.setState(function (p) {
return _extends({}, p, {
columns: columns,
hasDistributed: true
});
});
};
Masonry.getEqualCountColumns = function getEqualCountColumns(children, columnsCount) {
var columns = Array.from({
length: columnsCount
}, function () {
return [];
});
var validIndex = 0;
var childRefs = [];
_react["default"].Children.forEach(children, function (child) {
if (child && _react["default"].isValidElement(child)) {
var ref = _react["default"].createRef();
childRefs.push(ref);
columns[validIndex % columnsCount].push( /*#__PURE__*/_react["default"].createElement("div", {
style: {
display: "flex",
justifyContent: "stretch"
},
key: validIndex,
ref: ref
}, child) // React.cloneElement(child, {ref}) // cannot attach refs to functional components without forwardRef
);
validIndex++;
}
});
return {
columns: columns,
childRefs: childRefs
};
};
_proto.renderColumns = function renderColumns() {
var _this$props2 = this.props,
gutter = _this$props2.gutter,
itemTag = _this$props2.itemTag,
itemStyle = _this$props2.itemStyle;
return this.state.columns.map(function (column, i) {
return _react["default"].createElement(itemTag, {
key: i,
style: _extends({
display: "flex",
flexDirection: "column",
justifyContent: "flex-start",
alignContent: "stretch",
flex: 1,
width: 0,
gap: gutter
}, itemStyle)
}, column.map(function (item) {
return item;
}));
});
};
_proto.render = function render() {
var _this$props3 = this.props,
gutter = _this$props3.gutter,
className = _this$props3.className,
style = _this$props3.style,
containerTag = _this$props3.containerTag;
return _react["default"].createElement(containerTag, {
style: _extends({
display: "flex",
flexDirection: "row",
justifyContent: "center",
alignContent: "stretch",
boxSizing: "border-box",
width: "100%",
gap: gutter
}, style),
className: className
}, this.renderColumns());
};
return Masonry;
}(_react["default"].Component);
Masonry.propTypes = process.env.NODE_ENV !== "production" ? {
children: _propTypes["default"].oneOfType([_propTypes["default"].arrayOf(_propTypes["default"].node), _propTypes["default"].node]).isRequired,
columnsCount: _propTypes["default"].number,
gutter: _propTypes["default"].string,
className: _propTypes["default"].string,
style: _propTypes["default"].object,
containerTag: _propTypes["default"].string,
itemTag: _propTypes["default"].string,
itemStyle: _propTypes["default"].object,
sequential: _propTypes["default"].bool
} : {};
Masonry.defaultProps = {
columnsCount: 3,
gutter: "0",
className: null,
style: {},
containerTag: "div",
itemTag: "div",
itemStyle: {},
sequential: false
};
var _default = Masonry;
exports["default"] = _default;
module.exports = exports.default;
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