160 lines
4.6 KiB
JavaScript
160 lines
4.6 KiB
JavaScript
"use strict";
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define(function (require, exports, module) {
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return {
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/**
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*
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*/
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charSources: '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_'.split(''),
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/**
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* 十进制 转 63进制
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* @param val
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* @constructor
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*/
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Parse10To63(val) {
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if (val <= 10) {
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return (val - 1) + "";
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}
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let sources = this.charSources;
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let result = [];
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let num = 0;
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let mx = 63, baseMix = 63;
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let tmp = 0;
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while (val > 0) {
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let mod = val % mx;
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if (num === 0) {
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tmp = mod - 1;
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result.push(sources[tmp])
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val = val - mod;
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} else {
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tmp = mod / (mx / baseMix);
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result.push(sources[tmp - 1])
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val = val - mod;
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}
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// 递增
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num++;
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mx = mx * baseMix;
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//log
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// console.log("mod: ", mod, " mx: ", mx, " val: ", val, " tmp: ", tmp)
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}
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return result.reverse().join('')
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},
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/**
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* 生成UUID
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* @param usn
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* @param docType
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* @returns {string}
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* @constructor
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*/
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Uuid(usn, docType = 0) {
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let sources = this.charSources;
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let radix = sources.length;
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let uuid = [];
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let myCrypto = window.crypto;
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//1. docIdPrefix长度3
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let docIdPrefix = "";
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if (myCrypto) {
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//生成一个 8位的数组，长度是 3
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let num = new Uint8Array(3);
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//随机生成
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myCrypto.getRandomValues(num);
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// console.log("Your lucky numbers:");
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for (let i = 0; i < 3; i++) {
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uuid[i] = sources[num[i] >> 2]
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}
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// docId + uid + docType + ts
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docIdPrefix = uuid.join('');
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} else {
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// Compact form
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for (let i = 0; i < 3; i++) uuid[i] = sources[0 | Math.random() * radix];
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docIdPrefix = uuid.join('');
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}
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//2. 基于 2024-11-03 16:37:38 1730623058 最大长度可自增
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let curTs4Sec = Date.parse(new Date()) / 1000 - 1730623058;
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let tsStr = this.Parse10To63(curTs4Sec);
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// console.log("curTs4Sec : ", curTs4Sec, " tsStr: ", tsStr)
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// docId(长度固定3) + uid(长度固定6) + docType(长度固定1) + ts(短期内1-6)
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return docIdPrefix + docType + usn + tsStr;
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},
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/**
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* 阻止默认事件
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* @constructor
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*/
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ProhibitDefaultEvent(event) {
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event.preventDefault()
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event.returnValue = false
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},
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/**
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* 获取 触发事件的元素
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* @param event
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* @constructor
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*/
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GetEventTarget(event) {
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return event.target
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},
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ParseEvent(e) {
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return e || window.event //标准化事件处理
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},
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GetKeyCode(event) {
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return event.keyCode || event.which || event.charCode
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},
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/**
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* 当前选区。 兼容不同浏览器
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* @returns {Selection|*}
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*/
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GetSelection() {
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return window.getSelection() || document.selection
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},
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/**
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* 是否是数字
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* @param value
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* @returns {boolean}
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*/
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IsNum(value) {
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return !isNaN(parseFloat(value)) && isFinite(value)
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},
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/**
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* 在节点node后面插入新节点newNode
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* @method InsertAfter
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* @param { Node } node 目标节点
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* @param { Node } newNode 新插入的节点， 该节点将置于目标节点之后
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* @return { Node } 新插入的节点
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*/
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InsertAfter(node, newNode) {
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return node.nextSibling
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? node.parentNode.insertBefore(newNode, node.nextSibling)
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: node.parentNode.appendChild(newNode)
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},
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TriggerFocus(selector) {
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const targetElement = document.querySelector(selector);
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if (document.createEvent) {
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const event = document.createEvent('HTMLEvents');
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event.initEvent('focus', true, false);
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targetElement.dispatchEvent(event);
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} else if (document.createEventObject) {
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//兼容IE
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targetElement.fireEvent('focus');
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}
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}
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}
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}); |