antd
Version:
An enterprise-class UI design language and React-based implementation
329 lines (310 loc) • 14.8 kB
JavaScript
import _extends from 'babel-runtime/helpers/extends';
import _defineProperty from 'babel-runtime/helpers/defineProperty';
import _classCallCheck from 'babel-runtime/helpers/classCallCheck';
import _createClass from 'babel-runtime/helpers/createClass';
import _possibleConstructorReturn from 'babel-runtime/helpers/possibleConstructorReturn';
import _inherits from 'babel-runtime/helpers/inherits';
var __rest = this && this.__rest || function (s, e) {
var t = {};
for (var p in s) {
if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0) t[p] = s[p];
}if (s != null && typeof Object.getOwnPropertySymbols === "function") for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
if (e.indexOf(p[i]) < 0) t[p[i]] = s[p[i]];
}return t;
};
import * as React from 'react';
import RcCascader from 'rc-cascader';
import arrayTreeFilter from 'array-tree-filter';
import classNames from 'classnames';
import omit from 'omit.js';
import KeyCode from 'rc-util/es/KeyCode';
import Input from '../input';
import Icon from '../icon';
function highlightKeyword(str, keyword, prefixCls) {
return str.split(keyword).map(function (node, index) {
return index === 0 ? node : [React.createElement(
'span',
{ className: prefixCls + '-menu-item-keyword', key: 'seperator' },
keyword
), node];
});
}
function defaultFilterOption(inputValue, path) {
return path.some(function (option) {
return option.label.indexOf(inputValue) > -1;
});
}
function defaultRenderFilteredOption(inputValue, path, prefixCls) {
return path.map(function (_ref, index) {
var label = _ref.label;
var node = label.indexOf(inputValue) > -1 ? highlightKeyword(label, inputValue, prefixCls) : label;
return index === 0 ? node : [' / ', node];
});
}
function defaultSortFilteredOption(a, b, inputValue) {
function callback(elem) {
return elem.label.indexOf(inputValue) > -1;
}
return a.findIndex(callback) - b.findIndex(callback);
}
var defaultDisplayRender = function defaultDisplayRender(label) {
return label.join(' / ');
};
var Cascader = function (_React$Component) {
_inherits(Cascader, _React$Component);
function Cascader(props) {
_classCallCheck(this, Cascader);
var _this = _possibleConstructorReturn(this, (Cascader.__proto__ || Object.getPrototypeOf(Cascader)).call(this, props));
_this.handleChange = function (value, selectedOptions) {
_this.setState({ inputValue: '' });
if (selectedOptions[0].__IS_FILTERED_OPTION) {
var unwrappedValue = value[0];
var unwrappedSelectedOptions = selectedOptions[0].path;
_this.setValue(unwrappedValue, unwrappedSelectedOptions);
return;
}
_this.setValue(value, selectedOptions);
};
_this.handlePopupVisibleChange = function (popupVisible) {
if (!('popupVisible' in _this.props)) {
_this.setState({
popupVisible: popupVisible,
inputFocused: popupVisible,
inputValue: popupVisible ? _this.state.inputValue : ''
});
}
var onPopupVisibleChange = _this.props.onPopupVisibleChange;
if (onPopupVisibleChange) {
onPopupVisibleChange(popupVisible);
}
};
_this.handleInputBlur = function () {
_this.setState({
inputFocused: false
});
};
_this.handleInputClick = function (e) {
var _this$state = _this.state,
inputFocused = _this$state.inputFocused,
popupVisible = _this$state.popupVisible;
// Prevent `Trigger` behaviour.
if (inputFocused || popupVisible) {
e.stopPropagation();
e.nativeEvent.stopImmediatePropagation();
}
};
_this.handleKeyDown = function (e) {
if (e.keyCode === KeyCode.BACKSPACE) {
e.stopPropagation();
}
};
_this.handleInputChange = function (e) {
var inputValue = e.target.value;
_this.setState({ inputValue: inputValue });
};
_this.setValue = function (value) {
var selectedOptions = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
if (!('value' in _this.props)) {
_this.setState({ value: value });
}
var onChange = _this.props.onChange;
if (onChange) {
onChange(value, selectedOptions);
}
};
_this.clearSelection = function (e) {
e.preventDefault();
e.stopPropagation();
if (!_this.state.inputValue) {
_this.setValue([]);
_this.handlePopupVisibleChange(false);
} else {
_this.setState({ inputValue: '' });
}
};
_this.saveInput = function (node) {
_this.input = node;
};
_this.state = {
value: props.value || props.defaultValue || [],
inputValue: '',
inputFocused: false,
popupVisible: props.popupVisible,
flattenOptions: props.showSearch && _this.flattenTree(props.options, props.changeOnSelect)
};
return _this;
}
_createClass(Cascader, [{
key: 'componentWillReceiveProps',
value: function componentWillReceiveProps(nextProps) {
if ('value' in nextProps) {
this.setState({ value: nextProps.value || [] });
}
if ('popupVisible' in nextProps) {
this.setState({ popupVisible: nextProps.popupVisible });
}
if (nextProps.showSearch && this.props.options !== nextProps.options) {
this.setState({ flattenOptions: this.flattenTree(nextProps.options, nextProps.changeOnSelect) });
}
}
}, {
key: 'getLabel',
value: function getLabel() {
var _props = this.props,
options = _props.options,
_props$displayRender = _props.displayRender,
displayRender = _props$displayRender === undefined ? defaultDisplayRender : _props$displayRender;
var value = this.state.value;
var unwrappedValue = Array.isArray(value[0]) ? value[0] : value;
var selectedOptions = arrayTreeFilter(options, function (o, level) {
return o.value === unwrappedValue[level];
});
var label = selectedOptions.map(function (o) {
return o.label;
});
return displayRender(label, selectedOptions);
}
}, {
key: 'flattenTree',
value: function flattenTree(options, changeOnSelect) {
var _this2 = this;
var ancestor = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : [];
var flattenOptions = [];
options.forEach(function (option) {
var path = ancestor.concat(option);
if (changeOnSelect || !option.children || !option.children.length) {
flattenOptions.push(path);
}
if (option.children) {
flattenOptions = flattenOptions.concat(_this2.flattenTree(option.children, changeOnSelect, path));
}
});
return flattenOptions;
}
}, {
key: 'generateFilteredOptions',
value: function generateFilteredOptions(prefixCls) {
var _this3 = this;
var _props2 = this.props,
showSearch = _props2.showSearch,
notFoundContent = _props2.notFoundContent;
var _showSearch$filter = showSearch.filter,
filter = _showSearch$filter === undefined ? defaultFilterOption : _showSearch$filter,
_showSearch$render = showSearch.render,
render = _showSearch$render === undefined ? defaultRenderFilteredOption : _showSearch$render,
_showSearch$sort = showSearch.sort,
sort = _showSearch$sort === undefined ? defaultSortFilteredOption : _showSearch$sort;
var _state = this.state,
flattenOptions = _state.flattenOptions,
inputValue = _state.inputValue;
var filtered = flattenOptions.filter(function (path) {
return filter(_this3.state.inputValue, path);
}).sort(function (a, b) {
return sort(a, b, inputValue);
});
if (filtered.length > 0) {
return filtered.map(function (path) {
return {
__IS_FILTERED_OPTION: true,
path: path,
label: render(inputValue, path, prefixCls),
value: path.map(function (o) {
return o.value;
}),
disabled: path.some(function (o) {
return o.disabled;
})
};
});
}
return [{ label: notFoundContent, value: 'ANT_CASCADER_NOT_FOUND', disabled: true }];
}
}, {
key: 'focus',
value: function focus() {
this.input.focus();
}
}, {
key: 'blur',
value: function blur() {
this.input.blur();
}
}, {
key: 'render',
value: function render() {
var _classNames, _classNames2, _classNames3;
var props = this.props,
state = this.state;
var prefixCls = props.prefixCls,
inputPrefixCls = props.inputPrefixCls,
children = props.children,
placeholder = props.placeholder,
size = props.size,
disabled = props.disabled,
className = props.className,
style = props.style,
allowClear = props.allowClear,
_props$showSearch = props.showSearch,
showSearch = _props$showSearch === undefined ? false : _props$showSearch,
otherProps = __rest(props, ["prefixCls", "inputPrefixCls", "children", "placeholder", "size", "disabled", "className", "style", "allowClear", "showSearch"]);
var value = state.value;
var sizeCls = classNames((_classNames = {}, _defineProperty(_classNames, inputPrefixCls + '-lg', size === 'large'), _defineProperty(_classNames, inputPrefixCls + '-sm', size === 'small'), _classNames));
var clearIcon = allowClear && !disabled && value.length > 0 || state.inputValue ? React.createElement(Icon, { type: 'cross-circle', className: prefixCls + '-picker-clear', onClick: this.clearSelection }) : null;
var arrowCls = classNames((_classNames2 = {}, _defineProperty(_classNames2, prefixCls + '-picker-arrow', true), _defineProperty(_classNames2, prefixCls + '-picker-arrow-expand', state.popupVisible), _classNames2));
var pickerCls = classNames(className, prefixCls + '-picker', (_classNames3 = {}, _defineProperty(_classNames3, prefixCls + '-picker-with-value', state.inputValue), _defineProperty(_classNames3, prefixCls + '-picker-disabled', disabled), _defineProperty(_classNames3, prefixCls + '-picker-' + size, !!size), _classNames3));
// Fix bug of https://github.com/facebook/react/pull/5004
// and https://fb.me/react-unknown-prop
var inputProps = omit(otherProps, ['onChange', 'options', 'popupPlacement', 'transitionName', 'displayRender', 'onPopupVisibleChange', 'changeOnSelect', 'expandTrigger', 'popupVisible', 'getPopupContainer', 'loadData', 'popupClassName', 'filterOption', 'renderFilteredOption', 'sortFilteredOption', 'notFoundContent']);
var options = props.options;
if (state.inputValue) {
options = this.generateFilteredOptions(prefixCls);
}
// Dropdown menu should keep previous status until it is fully closed.
if (!state.popupVisible) {
options = this.cachedOptions;
} else {
this.cachedOptions = options;
}
var dropdownMenuColumnStyle = {};
var isNotFound = (options || []).length === 1 && options[0].value === 'ANT_CASCADER_NOT_FOUND';
if (isNotFound) {
dropdownMenuColumnStyle.height = 'auto'; // Height of one row.
}
// The default value of `matchInputWidth` is `true`
var resultListMatchInputWidth = showSearch.matchInputWidth === false ? false : true;
if (resultListMatchInputWidth && state.inputValue && this.input) {
dropdownMenuColumnStyle.width = this.input.input.offsetWidth;
}
var input = children || React.createElement(
'span',
{ style: style, className: pickerCls },
React.createElement(
'span',
{ className: prefixCls + '-picker-label' },
this.getLabel()
),
React.createElement(Input, _extends({}, inputProps, { ref: this.saveInput, prefixCls: inputPrefixCls, placeholder: value && value.length > 0 ? undefined : placeholder, className: prefixCls + '-input ' + sizeCls, value: state.inputValue, disabled: disabled, readOnly: !showSearch, autoComplete: 'off', onClick: showSearch ? this.handleInputClick : undefined, onBlur: showSearch ? this.handleInputBlur : undefined, onKeyDown: this.handleKeyDown, onChange: showSearch ? this.handleInputChange : undefined })),
clearIcon,
React.createElement(Icon, { type: 'down', className: arrowCls })
);
return React.createElement(
RcCascader,
_extends({}, props, { options: options, value: value, popupVisible: state.popupVisible, onPopupVisibleChange: this.handlePopupVisibleChange, onChange: this.handleChange, dropdownMenuColumnStyle: dropdownMenuColumnStyle }),
input
);
}
}]);
return Cascader;
}(React.Component);
export default Cascader;
Cascader.defaultProps = {
prefixCls: 'ant-cascader',
inputPrefixCls: 'ant-input',
placeholder: 'Please select',
transitionName: 'slide-up',
popupPlacement: 'bottomLeft',
options: [],
disabled: false,
allowClear: true,
notFoundContent: 'Not Found'
};