把警示窗改为显示在页面右上角，显示几秒后会自动关闭。用鼠标点按窗口会立即关闭，并把内容拷贝到系统剪贴簿。
当前为
// ==UserScript==
// @name elegant alert()
// @name:zh-CN 优雅的 alert()
// @name:zh-TW 優雅的 alert()
// @description:en Customized alert box at the top right corner, auto close in a few seconds. Click on the alert box will close it immediately and copy the alert message to clipboard.
// @description:zh-CN 把警示窗改为显示在页面右上角，显示几秒后会自动关闭。用鼠标点按窗口会立即关闭，并把内容拷贝到系统剪贴簿。
// @description:zh-TW 把警示窗改為顯示在頁面右上角，顯示幾秒後會自動關閉。用滑鼠點按窗口會立即關閉，並把內容複製到系統剪貼簿。
// @namespace https://greasyfork.org/zh-TW/users/393133-evan-tseng
// @author Evan Tseng
// @version 1.03
// @include http://*
// @include https://*
// @run-at document-start
// @grant none
// @description Customized alert box at the top right corner, auto close in a few seconds. Click on the alert box will close it immediately and copy the alert message to clipboard.
// ==/UserScript==
(async function() {
'use strict';
const boxFont = '400 14pt Helvetica',
boxFontColor = '#220',
boxColor = 'rgba(240,240,210,.85)',
boxHoverColor = 'rgba(255,255,230,.85)',
popBgColor = '#F00',
countdownColor1 = 'rgba(0,0,255,.12)',
countdownColor2 = 'rgba(80,0,255,.12)',
duration = "6000";
var alertWrap = null;
const ElegantAlertBox = function(msg){
if(!alertWrap) {
const css = '@media screen and (min-width: 200px) { .elegantAlertBoxWrapper { max-width: 75%; right:5mm } }'+
'@media screen and (min-width: 800px) { .elegantAlertBoxWrapper { max-width: 400px; right:10mm} }'+
'.elegantAlertBoxWrapper { position:fixed; top:8mm; text-align:right; z-index:2147483647; -webkit-user-select:none; user-select:none }'+
'.elegantAlertBoxWrapper>div { float:right; clear: right; position:relative; font:'+ boxFont +'; line-height:1.4; color:'+ boxFontColor +'; background:'+ popBgColor +'; max-height:0; padding:2px 2mm; margin-bottom:1.5mm; overflow:scroll; border-radius:5px; opacity:0; cursor:pointer; box-shadow:inset 0 0 0 1px rgba(255,255,255,.8), 0 1px 2mm rgba(0,0,0,.7); backdrop-filter:blur(2px); -webkit-backdrop-filter:blur(2px); }'+
'.elegantAlertBoxWrapper>div>.eaBar { position: absolute; left:0; top:0; width:100%; height:100%; background:'+ countdownColor1 +'; border-radius: 3px }'+
'.elegantAlertBoxWrapper>.eaNormal { background:'+ boxColor +'; opacity:1; max-height:4.7em; transition:max-height 0s, opacity 0s, background .2s 0s }'+
'.elegantAlertBoxWrapper>.eaNormal>.eaBar, .elegantAlertBoxWrapper>.eaClose>.eaBar { background: '+ countdownColor2 +'; width:0; transition:' + duration + 'ms linear}'+
'.elegantAlertBoxWrapper>.eaClose { background:'+ boxColor +'; opacity:0; max-height:0; padding:0 2mm; margin:0; transition: .6s }'+
'.elegantAlertBoxWrapper>.eaNormal:hover { background:'+ boxHoverColor +'; z-index:2; box-shadow:inset 0 0 0 1px rgba(255,255,255,.8), 0 1px 2mm rgba(0,0,0,.8); transition: .1s }'+
'.elegantAlertBoxWrapper>.eaNormal:active { box-shadow:0 0 0 1px #777, inset 0 1px 2px #555 }',
cssStyle = document.createElement('style');
if(cssStyle.styleSheet) cssStyle.styleSheet.cssText = css;
else cssStyle.appendChild(document.createTextNode(css));
document.querySelector('head').appendChild(cssStyle);
alertWrap = document.createElement('div');
alertWrap.setAttribute("class", "elegantAlertBoxWrapper");
document.body.appendChild(alertWrap);
}
this.exist = true;
this.createBox = function(text){
var box = this,
alBox = document.createElement('div');
alBox.innerHTML = '<div class="eaBar"></div>' + text;
alBox.onclick = function(){
window.Clipboard.copy(text);
box.close();
};
return alBox;
};
this.show = function(){
var box = this;
setTimeout(function(){
box.elm.setAttribute("class", "eaNormal");
setTimeout(function(){
if(box.exist) box.close();
}, duration);
},60);
};
this.close = function(){
var box = this;
box.elm.setAttribute("class", "eaClose");
setTimeout(function(){
if(box.exist) {
alertWrap.removeChild(box.elm);
box.exist = false;
}
}, 1000);
};
this.elm = this.createBox(msg);
alertWrap.appendChild(this.elm);
this.show();
return this.elm;
};
window.Clipboard = (function(window, document, navigator) {
var textArea, copy;
function isOS() {
return navigator.userAgent.match(/ipad|iphone/i);
}
function createTextArea(text) {
textArea = document.createElement('textArea');
textArea.value = text;
document.body.appendChild(textArea);
}
function selectText() {
var range,
selection;
if (isOS()) {
range = document.createRange();
range.selectNodeContents(textArea);
selection = window.getSelection();
selection.removeAllRanges();
selection.addRange(range);
textArea.setSelectionRange(0, -1);
} else {
textArea.select();
}
}
function copyToClipboard() {
document.execCommand('copy');
document.body.removeChild(textArea);
}
copy = function(text) {
createTextArea(text);
selectText();
copyToClipboard();
};
return {
copy: copy
};
})(window, document, navigator);
window.alert = async function(message){
if(document.body) {
var alertBox = new ElegantAlertBox(message);
}
else {
setTimeout(function(){
window.alert(message);
}, 500);
}
};
})();