@alifd/next
Version:
A configurable component library for web built on React.
61 lines (60 loc) • 2.31 kB
JavaScript
export var getWidth = function (elem) {
var width = elem &&
typeof elem.getBoundingClientRect === 'function' &&
elem.getBoundingClientRect().width;
if (width) {
width = +width.toFixed(6);
}
return width || 0;
};
export var normalizeToArray = function (items) {
if (items) {
if (Array.isArray(items)) {
return items;
}
return [items];
}
return [];
};
export var isSibling = function (currentPos, targetPos) {
var currentNums = currentPos.split('-').slice(0, -1);
var targetNums = targetPos.split('-').slice(0, -1);
return (currentNums.length === targetNums.length &&
currentNums.every(function (num, index) {
return num === targetNums[index];
}));
};
export var isAncestor = function (currentPos, targetPos) {
var currentNums = currentPos.split('-');
var targetNums = targetPos.split('-');
return (currentNums.length > targetNums.length &&
targetNums.every(function (num, index) {
return num === currentNums[index];
}));
};
export var isAvailablePos = function (refPos, targetPos, _p2n) {
var _a = _p2n[targetPos], type = _a.type, disabled = _a.disabled;
return isSibling(refPos, targetPos) && ((type === 'item' && !disabled) || type === 'submenu');
};
export var getFirstAvaliablelChildKey = function (parentPos, _p2n) {
var pos = Object.keys(_p2n).find(function (p) { return isAvailablePos("".concat(parentPos, "-0"), p, _p2n); });
return pos ? _p2n[pos].key : null;
};
/**
* 如果 key 在 SelectedKeys 的选中链上（例如 SelectedKeys 是 ['0-1-2'], key 是 0-1），那么返回 true
*
* selectMode?: string; 当前的选择模式，一般为 multiple single
* selectedKeys?: string[]; 选中的 key 值
* k2n?: object[] mapping;
* _key?: string; 待测试的 key 值
*
* @returns bool 当前元素是否有孩子被选中
*/
export var getChildSelected = function (_a) {
var selectMode = _a.selectMode, selectedKeys = _a.selectedKeys, _k2n = _a._k2n, _key = _a._key;
if (!_k2n) {
return false;
}
var _keyPos = "".concat(_k2n[_key] && _k2n[_key].pos, "-");
return (!!selectMode && selectedKeys.some(function (key) { return _k2n[key] && _k2n[key].pos.indexOf(_keyPos) === 0; }));
};