@delon/util
Version:
Universal toolset of ng-alain.
312 lines (305 loc) • 9.95 kB
JavaScript
import extend from 'extend';
import { DOCUMENT } from '@angular/common';
import * as i0 from '@angular/core';
import { inject, Injectable } from '@angular/core';
import { BehaviorSubject, share, filter, isObservable } from 'rxjs';
/**
* Gets the value at `path` of `object`, like `_.get` in lodash.
*
* 类似 `_.get`，根据 `path` 获取安全值
*/
function deepGet(obj, path, defaultValue) {
if (!obj || path == null || path.length === 0)
return defaultValue;
if (!Array.isArray(path)) {
path = ~path.indexOf('.') ? path.split('.') : [path];
}
if (path.length === 1) {
const checkObj = obj[path[0]];
return typeof checkObj === 'undefined' ? defaultValue : checkObj;
}
const res = path.reduce((o, k) => (o || {})[k], obj);
return typeof res === 'undefined' ? defaultValue : res;
}
/**
* Base on [extend](https://github.com/justmoon/node-extend) deep copy.
*
* 基于 [extend](https://github.com/justmoon/node-extend) 的深度拷贝
*
* NOTE: Don't a lot of recursion, maybe performance issues
*/
function deepCopy(obj) {
const result = extend(true, {}, { _: obj });
return result._;
}
/**
* Deep merge object.
*
* 深度合并对象
*
* @param original 原始对象
* @param arrayProcessMethod 数组处理方式
* - `true` 表示替换新值，不管新值为哪种类型
* - `false` 表示会合并整个数组（将旧数据与新数据合并成新数组）
* @param objects 要合并的对象
*/
function deepMergeKey(original, arrayProcessMethod, ...objects) {
if (Array.isArray(original) || typeof original !== 'object')
return original;
const isObject = (v) => typeof v === 'object';
const merge = (target, obj) => {
Object.keys(obj)
.filter(key => key !== '__proto__' && Object.prototype.hasOwnProperty.call(obj, key))
.forEach(key => {
const fromValue = obj[key];
const toValue = target[key];
if (Array.isArray(toValue)) {
target[key] = arrayProcessMethod ? fromValue : [...toValue, ...fromValue];
}
else if (typeof fromValue === 'function') {
target[key] = fromValue;
}
else if (fromValue != null && isObject(fromValue) && toValue != null && isObject(toValue)) {
target[key] = merge(toValue, fromValue);
}
else {
target[key] = deepCopy(fromValue);
}
});
return target;
};
objects.filter(v => v != null && isObject(v)).forEach(v => merge(original, v));
return original;
}
/**
* Deep merge object.
*
* 深度合并对象
*/
function deepMerge(original, ...objects) {
return deepMergeKey(original, false, ...objects);
}
const record = {};
const PREFIX = '[@DELON]:';
function notRecorded(...args) {
const asRecord = args.reduce((acc, c) => acc + c.toString(), '');
if (record[asRecord]) {
return false;
}
else {
record[asRecord] = true;
return true;
}
}
function consoleCommonBehavior(consoleFunc, ...args) {
if ((typeof ngDevMode === 'undefined' || ngDevMode) && notRecorded(...args)) {
consoleFunc(...args);
}
}
// Warning should only be printed in dev mode and only once.
const warn = (...args) => consoleCommonBehavior((...arg) => console.warn(PREFIX, ...arg), ...args);
const warnDeprecation = (...args) => {
if (typeof ngDevMode === 'undefined' || ngDevMode) {
return () => { };
}
const stack = new Error().stack;
return consoleCommonBehavior((...arg) => console.warn(PREFIX, 'deprecated:', ...arg, stack), ...args);
};
// Log should only be printed in dev mode.
const log = (...args) => {
if (typeof ngDevMode === 'undefined' || ngDevMode) {
console.log(PREFIX, ...args);
}
};
/**
* `LazyService` delay loading JS or CSS files.
*
* 延迟加载资源（js 或 css）服务
*/
class LazyService {
doc = inject(DOCUMENT);
list = {};
cached = {};
_notify = new BehaviorSubject([]);
get change() {
return this._notify.asObservable().pipe(share(), filter(ls => ls.length !== 0));
}
clear() {
this.list = {};
this.cached = {};
}
attachAttributes(el, attributes) {
if (attributes == null)
return;
Object.entries(attributes).forEach(([key, value]) => {
el.setAttribute(key, value);
});
}
/**
* Load script or style files
*/
load(paths) {
if (!Array.isArray(paths)) {
paths = [paths];
}
const promises = [];
paths
.map(v => (typeof v !== 'object' ? { path: v } : v))
.forEach(item => {
if (item.path.endsWith('.js')) {
promises.push(this.loadScript(item.path, item.options));
}
else {
promises.push(this.loadStyle(item.path, item.options));
}
});
return Promise.all(promises).then(res => {
this._notify.next(res);
return Promise.resolve(res);
});
}
loadScript(path, innerContent, attributes) {
const options = typeof innerContent === 'object'
? innerContent
: {
innerContent,
attributes
};
return new Promise(resolve => {
if (this.list[path] === true) {
resolve({ ...this.cached[path], status: 'loading' });
return;
}
this.list[path] = true;
const onSuccess = (item) => {
this.cached[path] = item;
resolve(item);
this._notify.next([item]);
};
const node = this.doc.createElement('script');
node.type = 'text/javascript';
node.src = path;
this.attachAttributes(node, options.attributes);
if (options.innerContent) {
node.innerHTML = options.innerContent;
}
node.onload = () => onSuccess({
path,
status: 'ok'
});
node.onerror = error => onSuccess({
path,
status: 'error',
error
});
this.doc.getElementsByTagName('head')[0].appendChild(node);
});
}
loadStyle(path, rel, innerContent, attributes) {
const options = typeof rel === 'object'
? rel
: {
rel,
innerContent,
attributes
};
return new Promise(resolve => {
if (this.list[path] === true) {
resolve(this.cached[path]);
return;
}
this.list[path] = true;
const node = this.doc.createElement('link');
node.rel = options.rel ?? 'stylesheet';
node.type = 'text/css';
node.href = path;
this.attachAttributes(node, options.attributes);
if (options.innerContent) {
node.innerHTML = options.innerContent;
}
this.doc.getElementsByTagName('head')[0].appendChild(node);
const item = {
path,
status: 'ok'
};
this.cached[path] = item;
resolve(item);
});
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "20.1.2", ngImport: i0, type: LazyService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "20.1.2", ngImport: i0, type: LazyService, providedIn: 'root' });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "20.1.2", ngImport: i0, type: LazyService, decorators: [{
type: Injectable,
args: [{ providedIn: 'root' }]
}] });
function throwError(msg, actual, expected, comparison) {
if (typeof ngDevMode === 'undefined' || ngDevMode) {
throw new Error(`ASSERTION ERROR: ${msg}${comparison == null ? '' : ` [Expected=> ${expected} ${comparison} ${actual} <=Actual]`}`);
}
}
/**
* Assert whether the expression and throw an error into console in dev mode
*
* 断言表达式是否符合预期，并在开发模式下会在控制台抛出一个错误
*/
function assert(expression, msg) {
if (!expression) {
throwError(msg);
}
}
/**
* Assert whether empty (`null` or `undefined`)
*
* 断言是否空值（`null` 或 `undefined`）
*/
function assertEmpty(actual, msg) {
if (actual == null) {
throwError(msg, typeof actual, 'NULL', '==');
}
}
/**
* Assert whether `number` type
*
* 断言是否 `number` 类型
*/
function assertNumber(actual, msg) {
if (!(typeof actual === 'number')) {
throwError(msg, typeof actual, 'number', '===');
}
}
/**
* Assert whether `string` type
*
* 断言是否 `string` 类型
*/
function assertString(actual, msg) {
if (!(typeof actual === 'string')) {
throwError(msg, actual === null ? 'null' : typeof actual, 'string', '===');
}
}
/**
* Assert whether `array` type
*
* 断言是否 `array` 类型
*/
function assertArray(actual, msg) {
if (!Array.isArray(actual)) {
throwError(msg, actual === null ? 'null' : typeof actual, 'array', '===');
}
}
/**
* Assert whether `Observable` type
*
* 断言是否 `Observable` 类型
*/
function assertObservable(obj, msg) {
if (!isObservable(obj)) {
throwError(msg, obj === null ? 'null' : typeof obj, 'Observable', '===');
}
}
/**
* Generated bundle index. Do not edit.
*/
export { LazyService, PREFIX, assert, assertArray, assertEmpty, assertNumber, assertObservable, assertString, deepCopy, deepGet, deepMerge, deepMergeKey, log, warn, warnDeprecation };
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