@sms-frontend/components
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SMS Design React UI Library.
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JavaScript
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
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function verb(n) { return function (v) { return step([n, v]); }; }
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var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
if (ar || !(i in from)) {
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
};
import React, { forwardRef, useContext, useRef, useState, useCallback, } from 'react';
import Checkbox from '../Checkbox';
import cs from '../_util/classNames';
import { isFunction } from '../_util/is';
import IconCaretDown from '../../icon/react-icon/IconCaretDown';
import IconDragDotVertical from '../../icon/react-icon/IconDragDotVertical';
import IconLoading from '../../icon/react-icon/IconLoading';
import IconFile from '../../icon/react-icon/IconFile';
import { ConfigContext } from '../ConfigProvider';
import IconHover from '../_class/icon-hover';
import { TreeContext } from './context';
import AnimationNode from './animation';
import throttleByRaf from '../_util/throttleByRaf';
function TreeNode(props, ref) {
var _a, _b, _c;
var _this = this;
var treeContext = useContext(TreeContext);
var getPrefixCls = useContext(ConfigContext).getPrefixCls;
// const prevProps: NodeProps = usePrevious(props) || {};
var nodeTitleRef = useRef();
var _d = __read(useState({
isAllowDrop: true,
isDragOver: false,
dragPosition: 0,
isDragging: false,
}), 2), state = _d[0], setState = _d[1];
var _e = props._key, _key = _e === void 0 ? '' : _e, title = props.title, icon = props.icon, checkable = props.checkable, selected = props.selected, disabled = props.disabled, disableCheckbox = props.disableCheckbox, isLeaf = props.isLeaf, draggable = props.draggable, expanded = props.expanded, showLine = props.showLine, loading = props.loading, _f = props.selectable, selectable = _f === void 0 ? true : _f;
var prefixCls = getPrefixCls('tree-node');
var classNames = cs(prefixCls, (_a = {},
_a[prefixCls + "-selected"] = selected,
_a[prefixCls + "-is-leaf"] = isLeaf,
_a[prefixCls + "-expanded"] = expanded,
_a[prefixCls + "-disabled-selectable"] = !selectable,
_a[prefixCls + "-disabled"] = disabled,
_a[prefixCls + "-draggable"] = draggable,
_a), props.className);
var icons = (function () {
var treeIcons = isFunction(treeContext.icons) ? treeContext.icons(props) : treeContext.icons;
var propsIcons = isFunction(props.icons) ? props.icons(props) : props.icons;
return __assign(__assign({}, treeIcons), propsIcons);
})();
var setExpand = useCallback(function (newExpand) {
if (newExpand === expanded) {
return;
}
treeContext.onExpand && treeContext.onExpand(newExpand, _key);
}, [expanded, treeContext.onExpand]);
var switchExpandStatus = useCallback(function () { return __awaiter(_this, void 0, void 0, function () {
var isLeaf, expanded;
var _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
isLeaf = props.isLeaf, expanded = props.expanded;
if (isLeaf) {
return [2 /*return*/];
}
if (!(!((_a = props.childrenData) === null || _a === void 0 ? void 0 : _a.length) && isFunction(treeContext.loadMore) && !expanded)) return [3 /*break*/, 2];
return [4 /*yield*/, treeContext.loadMore(props)];
case 1:
_b.sent();
return [3 /*break*/, 3];
case 2:
setExpand(!expanded);
_b.label = 3;
case 3: return [2 /*return*/];
}
});
}); }, [props, setExpand, treeContext.loadMore]);
var getPrefixIcon = function () {
if (loading) {
return 'loadingIcon' in icons ? icons.loadingIcon : React.createElement(IconLoading, null);
}
var icon = null;
var needIconHover = false;
if (!isLeaf) {
var defaultIcon = showLine ? (React.createElement("span", { className: prefixCls + "-" + (expanded ? 'minus' : 'plus') + "-icon" })) : (React.createElement(IconCaretDown, null));
icon = 'switcherIcon' in icons ? icons.switcherIcon : defaultIcon;
needIconHover = !showLine;
}
else if (showLine) {
icon = 'switcherIcon' in icons ? icons.switcherIcon : React.createElement(IconFile, null);
needIconHover = true;
}
if (icon) {
icon = (React.createElement("span", { className: prefixCls + "-switcher-icon", onClick: switchExpandStatus }, icon));
return needIconHover ? React.createElement(IconHover, { prefix: prefixCls }, icon) : icon;
}
};
var updateDragOverState = useCallback(throttleByRaf(function (e) {
var dom = nodeTitleRef.current;
if (!dom)
return;
var rect = dom.getBoundingClientRect();
var offsetY = window.pageYOffset + rect.top;
var pageY = e.pageY;
var gapHeight = rect.height / 4;
var diff = pageY - offsetY;
var position = diff < gapHeight ? -1 : diff < rect.height - gapHeight ? 0 : 1;
var isAllowDrop = treeContext.allowDrop(props, position);
setState(__assign(__assign({}, state), { isAllowDrop: isAllowDrop, isDragOver: true, dragPosition: position }));
treeContext.onNodeDragOver && treeContext.onNodeDragOver(e, props, position);
}), [treeContext.onNodeDragOver]);
return (React.createElement(React.Fragment, null,
React.createElement("div", { style: props.style, className: classNames, ref: ref },
React.createElement("span", { className: prefixCls + "-indent" }, __spreadArray([], __read(Array(props._level)), false).map(function (_, i) {
var _a;
return (React.createElement("span", { className: cs(prefixCls + "-indent-block", (_a = {},
_a[prefixCls + "-indent-block-lineless"] = props._lineless && props._lineless[i],
_a)), key: i }));
})),
React.createElement("span", { className: cs(prefixCls + "-switcher", (_b = {},
_b[prefixCls + "-switcher-expanded"] = expanded,
_b)) }, getPrefixIcon()),
checkable ? (React.createElement(Checkbox, { disabled: disableCheckbox || disabled, value: _key, indeterminate: props.indeterminated, checked: props.checked, onChange: function (checked, e) {
var disableCheckbox = props.disableCheckbox, disabled = props.disabled;
if (disableCheckbox || disabled) {
return;
}
treeContext.onCheck && treeContext.onCheck(checked, _key, e);
} })) : null,
React.createElement("span", { ref: nodeTitleRef, className: cs(prefixCls + "-title", (_c = {},
_c[prefixCls + "-title-draggable"] = draggable,
_c[prefixCls + "-title-gap-top"] = state.isDragOver && state.isAllowDrop && state.dragPosition < 0,
_c[prefixCls + "-title-gap-bottom"] = state.isDragOver && state.isAllowDrop && state.dragPosition > 0,
_c[prefixCls + "-title-highlight"] = !state.isDragging &&
state.isDragOver &&
state.isAllowDrop &&
state.dragPosition === 0,
_c[prefixCls + "-title-dragging"] = state.isDragging,
_c[prefixCls + "-title-block"] = props.blockNode,
_c)), onClick: function (e) {
var onSelect = treeContext.onSelect;
!props.disabled && selectable && onSelect && onSelect(_key, e);
}, draggable: draggable, onDrop: function (e) {
e.stopPropagation();
e.preventDefault();
treeContext.onNodeDrop && treeContext.onNodeDrop(e, props, state.dragPosition);
updateDragOverState.cancel();
setState(__assign(__assign({}, state), { isDragOver: false, dragPosition: 0 }));
}, onDragStart: function (e) {
if (!draggable)
return;
e.stopPropagation();
// 当前节点正在被拖拽
setState(__assign(__assign({}, state), { isDragging: true }));
treeContext.onNodeDragStart && treeContext.onNodeDragStart(e, props);
try {
// ie throw error
// firefox-need-it
e.dataTransfer.setData('text/plain', '');
}
catch (error) {
// empty
}
}, onDragEnd: function (e) {
if (!draggable)
return;
e.stopPropagation();
updateDragOverState.cancel();
setState(__assign(__assign({}, state), { isDragOver: false, isDragging: false }));
treeContext.onNodeDragEnd && treeContext.onNodeDragEnd(e, props);
}, onDragOver: function (e) {
e.preventDefault();
e.stopPropagation();
e.persist();
updateDragOverState(e);
}, onDragLeave: function (e) {
if (!draggable)
return;
e.stopPropagation();
updateDragOverState.cancel();
setState(__assign(__assign({}, state), { isDragOver: false }));
treeContext.onNodeDragLeave && treeContext.onNodeDragLeave(e, props);
} },
icon && React.createElement("span", { className: prefixCls + "-icon " + prefixCls + "-custom-icon" }, icon),
React.createElement("span", { className: prefixCls + "-title-text" }, isFunction(treeContext.renderTitle) ? treeContext.renderTitle(props) : title),
draggable && (React.createElement("span", { className: prefixCls + "-icon " + prefixCls + "-drag-icon" }, 'dragIcon' in icons ? icons.dragIcon : React.createElement(IconDragDotVertical, null)))),
isFunction(treeContext.renderExtra) && treeContext.renderExtra(props)),
React.createElement(AnimationNode, __assign({}, props))));
}
var TreeNodeComponent = forwardRef(TreeNode);
TreeNodeComponent.displayName = 'TreeNode';
export default React.memo(TreeNodeComponent);