linkmore-design
Version:
🌈 🚀lm组件库。🚀
205 lines (200 loc) • 10.5 kB
JavaScript
import _typeof from "@babel/runtime/helpers/esm/typeof";
import _extends from "@babel/runtime/helpers/esm/extends";
import _defineProperty from "@babel/runtime/helpers/esm/defineProperty";
import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
import _objectWithoutProperties from "@babel/runtime/helpers/esm/objectWithoutProperties";
import _toConsumableArray from "@babel/runtime/helpers/esm/toConsumableArray";
var _excluded = ["prefixCls", "bordered", "showCount", "maxLength", "className", "style", "size", "disabled", "onCompositionStart", "onCompositionEnd", "onChange", "status"];
import classNames from 'classnames';
import RcTextArea from 'rc-textarea';
import useMergedState from 'rc-util/lib/hooks/useMergedState';
import omit from 'rc-util/lib/omit';
import * as React from 'react';
import { ConfigContext } from "../config-provider";
import DisabledContext from "../config-provider/DisabledContext";
import SizeContext from "../config-provider/SizeContext";
import { FormItemInputContext } from "../form/context";
import { getMergedStatus, getStatusClassNames } from "../_util/statusUtils";
import ClearableLabeledInput from "./ClearableLabeledInput";
import { fixControlledValue, resolveOnChange, triggerFocus } from "./Input";
function fixEmojiLength(value, maxLength) {
return _toConsumableArray(value || '').slice(0, maxLength).join('');
}
function setTriggerValue(isCursorInEnd, preValue, triggerValue, maxLength) {
var newTriggerValue = triggerValue;
if (isCursorInEnd) {
// 光标在尾部，直接截断
newTriggerValue = fixEmojiLength(triggerValue, maxLength);
} else if (_toConsumableArray(preValue || '').length < triggerValue.length && _toConsumableArray(triggerValue || '').length > maxLength) {
// 光标在中间，如果最后的值超过最大值，则采用原先的值
newTriggerValue = preValue;
}
return newTriggerValue;
}
var TextArea = /*#__PURE__*/React.forwardRef(function (_ref, ref) {
var _classNames;
var customizePrefixCls = _ref.prefixCls,
_ref$bordered = _ref.bordered,
bordered = _ref$bordered === void 0 ? true : _ref$bordered,
_ref$showCount = _ref.showCount,
showCount = _ref$showCount === void 0 ? false : _ref$showCount,
maxLength = _ref.maxLength,
className = _ref.className,
style = _ref.style,
customizeSize = _ref.size,
customDisabled = _ref.disabled,
onCompositionStart = _ref.onCompositionStart,
onCompositionEnd = _ref.onCompositionEnd,
onChange = _ref.onChange,
customStatus = _ref.status,
props = _objectWithoutProperties(_ref, _excluded);
var _React$useContext = React.useContext(ConfigContext),
getPrefixCls = _React$useContext.getPrefixCls,
direction = _React$useContext.direction;
var size = React.useContext(SizeContext);
// ===================== Disabled =====================
var disabled = React.useContext(DisabledContext);
var mergedDisabled = customDisabled !== null && customDisabled !== void 0 ? customDisabled : disabled;
var _React$useContext2 = React.useContext(FormItemInputContext),
contextStatus = _React$useContext2.status,
hasFeedback = _React$useContext2.hasFeedback,
isFormItemInput = _React$useContext2.isFormItemInput,
feedbackIcon = _React$useContext2.feedbackIcon;
var mergedStatus = getMergedStatus(contextStatus, customStatus);
var innerRef = React.useRef(null);
var clearableInputRef = React.useRef(null);
var _React$useState = React.useState(false),
_React$useState2 = _slicedToArray(_React$useState, 2),
compositing = _React$useState2[0],
setCompositing = _React$useState2[1];
var oldCompositionValueRef = React.useRef();
var oldSelectionStartRef = React.useRef(0);
var _useMergedState = useMergedState(props.defaultValue, {
value: props.value
}),
_useMergedState2 = _slicedToArray(_useMergedState, 2),
value = _useMergedState2[0],
setValue = _useMergedState2[1];
var hidden = props.hidden;
var handleSetValue = function handleSetValue(val, callback) {
if (props.value === undefined) {
setValue(val);
callback === null || callback === void 0 ? void 0 : callback();
}
};
// =========================== Value Update ===========================
// Max length value
var hasMaxLength = Number(maxLength) > 0;
var onInternalCompositionStart = function onInternalCompositionStart(e) {
setCompositing(true);
// 拼音输入前保存一份旧值
oldCompositionValueRef.current = value;
// 保存旧的光标位置
oldSelectionStartRef.current = e.currentTarget.selectionStart;
onCompositionStart === null || onCompositionStart === void 0 ? void 0 : onCompositionStart(e);
};
var onInternalCompositionEnd = function onInternalCompositionEnd(e) {
setCompositing(false);
var triggerValue = e.currentTarget.value;
if (hasMaxLength) {
var _oldCompositionValueR;
var isCursorInEnd = oldSelectionStartRef.current >= maxLength + 1 || oldSelectionStartRef.current === ((_oldCompositionValueR = oldCompositionValueRef.current) === null || _oldCompositionValueR === void 0 ? void 0 : _oldCompositionValueR.length);
triggerValue = setTriggerValue(isCursorInEnd, oldCompositionValueRef.current, triggerValue, maxLength);
}
// Patch composition onChange when value changed
if (triggerValue !== value) {
handleSetValue(triggerValue);
resolveOnChange(e.currentTarget, e, onChange, triggerValue);
}
onCompositionEnd === null || onCompositionEnd === void 0 ? void 0 : onCompositionEnd(e);
};
var handleChange = function handleChange(e) {
var triggerValue = e.target.value;
if (!compositing && hasMaxLength) {
// 1. 复制粘贴超过maxlength的情况 2.未超过maxlength的情况
var isCursorInEnd = e.target.selectionStart >= maxLength + 1 || e.target.selectionStart === triggerValue.length || !e.target.selectionStart;
triggerValue = setTriggerValue(isCursorInEnd, value, triggerValue, maxLength);
}
handleSetValue(triggerValue);
resolveOnChange(e.currentTarget, e, onChange, triggerValue);
};
// ============================== Reset ===============================
var handleReset = function handleReset(e) {
var _innerRef$current, _innerRef$current2, _innerRef$current2$re;
handleSetValue('');
(_innerRef$current = innerRef.current) === null || _innerRef$current === void 0 ? void 0 : _innerRef$current.focus();
resolveOnChange((_innerRef$current2 = innerRef.current) === null || _innerRef$current2 === void 0 ? void 0 : (_innerRef$current2$re = _innerRef$current2.resizableTextArea) === null || _innerRef$current2$re === void 0 ? void 0 : _innerRef$current2$re.textArea, e, onChange);
};
var prefixCls = getPrefixCls('input', customizePrefixCls);
React.useImperativeHandle(ref, function () {
var _innerRef$current3;
return {
resizableTextArea: (_innerRef$current3 = innerRef.current) === null || _innerRef$current3 === void 0 ? void 0 : _innerRef$current3.resizableTextArea,
focus: function focus(option) {
var _innerRef$current4, _innerRef$current4$re;
triggerFocus((_innerRef$current4 = innerRef.current) === null || _innerRef$current4 === void 0 ? void 0 : (_innerRef$current4$re = _innerRef$current4.resizableTextArea) === null || _innerRef$current4$re === void 0 ? void 0 : _innerRef$current4$re.textArea, option);
},
blur: function blur() {
var _innerRef$current5;
return (_innerRef$current5 = innerRef.current) === null || _innerRef$current5 === void 0 ? void 0 : _innerRef$current5.blur();
}
};
});
var textArea = /*#__PURE__*/React.createElement(RcTextArea, _extends({}, omit(props, ['allowClear']), {
disabled: mergedDisabled,
className: classNames((_classNames = {}, _defineProperty(_classNames, "".concat(prefixCls, "-borderless"), !bordered), _defineProperty(_classNames, className, className && !showCount), _defineProperty(_classNames, "".concat(prefixCls, "-sm"), size === 'small' || customizeSize === 'small'), _defineProperty(_classNames, "".concat(prefixCls, "-lg"), size === 'large' || customizeSize === 'large'), _classNames), getStatusClassNames(prefixCls, mergedStatus)),
style: showCount ? {
resize: style === null || style === void 0 ? void 0 : style.resize
} : style,
prefixCls: prefixCls,
onCompositionStart: onInternalCompositionStart,
onChange: handleChange,
onCompositionEnd: onInternalCompositionEnd,
ref: innerRef
}));
var val = fixControlledValue(value);
if (!compositing && hasMaxLength && (props.value === null || props.value === undefined)) {
// fix #27612 将value转为数组进行截取，解决 '😂'.length === 2 等emoji表情导致的截取乱码的问题
val = fixEmojiLength(val, maxLength);
}
// TextArea
var textareaNode = /*#__PURE__*/React.createElement(ClearableLabeledInput, _extends({
disabled: mergedDisabled
}, props, {
prefixCls: prefixCls,
direction: direction,
inputType: "text",
value: val,
element: textArea,
handleReset: handleReset,
ref: clearableInputRef,
bordered: bordered,
status: customStatus,
style: showCount ? undefined : style
}));
// Only show text area wrapper when needed
if (showCount || hasFeedback) {
var _classNames2;
var valueLength = _toConsumableArray(val).length;
var dataCount = '';
if (_typeof(showCount) === 'object') {
dataCount = showCount.formatter({
value: val,
count: valueLength,
maxLength: maxLength
});
} else {
dataCount = "".concat(valueLength).concat(hasMaxLength ? " / ".concat(maxLength) : '');
}
return /*#__PURE__*/React.createElement("div", {
hidden: hidden,
className: classNames("".concat(prefixCls, "-textarea"), (_classNames2 = {}, _defineProperty(_classNames2, "".concat(prefixCls, "-textarea-rtl"), direction === 'rtl'), _defineProperty(_classNames2, "".concat(prefixCls, "-textarea-show-count"), showCount), _defineProperty(_classNames2, "".concat(prefixCls, "-textarea-in-form-item"), isFormItemInput), _classNames2), getStatusClassNames("".concat(prefixCls, "-textarea"), mergedStatus, hasFeedback), className),
style: style,
"data-count": dataCount
}, textareaNode, hasFeedback && /*#__PURE__*/React.createElement("span", {
className: "".concat(prefixCls, "-textarea-suffix")
}, feedbackIcon));
}
return textareaNode;
});
export default TextArea;