elegant alert()

Display a non-blocking alert box at the top right corner, and automatically close after a few seconds. Click on the alert box will close it immediately and copy the alert message to clipboard.

Ajankohdalta 18.6.2021. Katso uusin versio.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name				elegant alert()
// @name:zh-CN			优雅的 alert()
// @name:zh-TW			優雅的 alert()
// @description			Display a non-blocking alert box at the top right corner, and automatically close after 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				1.07
// @include				*://*
// @run-at				document-start
// @grant				none
// ==/UserScript==

(function() {
	'use strict';
	const boxFont = '400 5mm sans-serif',
		  boxFontColor = '#220',
		  boxColor = 'rgba(240,240,210,.85)',
		  boxHoverColor = 'rgba(255,255,255,.85)',
		  popFontColor = '#8FF',
		  popBgColor = '#b00',
		  countdownColor = 'rgba(0,0,255,.1)',
		  duration = 6300; // micro second

	const css = '@media screen and (max-width: 600pt) { .elegantAlertBoxWrapper>div { max-width:75vw } }'+
		  '@media screen and (min-width: 600pt) { .elegantAlertBoxWrapper>div { max-width:450pt } }'+
		  '.elegantAlertBoxWrapper { position:fixed; top:3mm; right:2mm; padding:5mm; max-height:calc(100vh - 13mm); z-index:2147483647; -webkit-user-select:none; user-select:none; }'+
		  '.elegantAlertBoxWrapper>div { position:relative; float:right; clear:right; font:'+ boxFont +'; line-height:1.25; color:'+ popFontColor +'; background:'+ popBgColor +'; min-height:1.25em; padding:2px 2mm; margin-bottom:1.5mm; overflow:auto; 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:'+ countdownColor +'; border-radius: 3px }'+
		  '.elegantAlertBoxWrapper>.pop { color:'+ boxFontColor +'; background:'+ boxColor +'; opacity:1; max-height:10em; animation: pulse1 .3s 1 }'+
		  '.elegantAlertBoxWrapper>.eaNormal { color:'+ boxFontColor +'; background:'+ boxColor +'; opacity:1; max-height:10em; }'+
		  '.elegantAlertBoxWrapper>.eaNormal>.eaBar, .elegantAlertBoxWrapper>.eaClose>.eaBar { width:0; transition:' + duration + 'ms linear}'+
		  '.elegantAlertBoxWrapper>.eaClose { background:'+ boxColor +'; opacity:0; min-height:0; max-height:0; padding:0 2mm; margin:0; transition: .6s linear }'+
		  '.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); animation: pulse2 .2s 1 }'+
		  '.elegantAlertBoxWrapper>.eaNormal:active { box-shadow:0 0 0 1px #777, inset 0 1px 2px #555; transform:scale(0.97); transition: .1s }'+
		  '@keyframes pulse1 { 0% { opacity:0.8 } 16% { color: ' + popFontColor + '; background: ' + popBgColor + '; transform: scale(1.2) } 50% { opacity:1; transform: scale(1.02) } 100% { } }'+
		  '@keyframes pulse2 { 25% { left: -2px; } 75% { left: 1px } }',
		  cssStyle = document.createElement('style');
	if(cssStyle.styleSheet)	cssStyle.styleSheet.cssText = css;
	else	cssStyle.appendChild(document.createTextNode(css));
	document.querySelector('head').appendChild(cssStyle);

	var alertWrap = null;
	const ElegantAlertBox = function(msg){
		if(!alertWrap) {
			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');
			alertWrap.appendChild(alBox);
			alBox.innerHTML = '<div class="eaBar"></div>' + text;
			alBox.setAttribute('class', 'pop');
			alBox.onclick = function(){
				let tmp = document.createElement('textArea');
				tmp.value = text;
				document.body.appendChild(tmp);
				tmp.select();
				document.execCommand('copy');
				tmp.remove();
				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);
			}, 500);
		};
		this.close = function(){
			var box = this;
			box.elm.setAttribute('class', 'eaClose');
			setTimeout(function(){
				if(box.exist) {
					box.elm.remove();
					if(!alertWrap.hasChildNodes()) {
						alertWrap.remove();
						alertWrap = null
					}
					box.elm = null;
					box.exist = false;
				}
			}, 1000);
		};
		this.elm = this.createBox(msg);
		this.show();
	};

	window.alert = function(message){
		if(document.body)	new ElegantAlertBox(message);
		else	setTimeout(function(){ window.alert(message); }, 250);
	};

})();