纯js封装一个多功能弹出框

时间：2023-08-22 22:37:00 1sma22at3g抑制二极管

没有别的帮助css可直接调用代码和图片资源。

请勿转载原创内容。

请注意，不要直接复制文章中的包装代码，因为编辑器，无论如何编辑，它都会修改代码。包装代码的下载地址代码的下载地址（无积分）

先上效果图

弹出一个类似的prompt的输入框：

点击确定后，获取输入内容。点击取消并关闭弹出框。

2.弹出自动消失的提示框:

3.弹出错误提示框:

4.弹出普通消息框:

5.弹出询问框:

6、等待框

封装实现：

function showmsgbox(id) {  this.obj = id;  this.result = ""; } showmsgbox.prototype = {  style: function (style) {   switch (style) {    case "wrong":    case "error":     infostyle =      'data:image/svg xml,
      ';     break;    case "right":     infostyle = 'data:image/svg xml,
      ';     break;    case "loading":    case "showLoading":     infostyle =      'data:image/gif;base64,R0lGODlhgACAAKIAAP///93d3bu7u5mZmQAA/wAAAAAAAAAAACH/C05FVFNDQVBFMi4wAwEAAAAh QQFBQAEACwCAAIAfAB8AAAD/0i63P4wygYqmDjrzbtflvWNZGliYXiubKuloivPLlzReD7al 7/Eh5wSFQIi8hHYBkwHUmD6CD5YTJLz49USuVYraRsZ7vtar7XnQ1Kjpoz6LRHvGlz35O4nEPP2O94EnpNc2sef1OBGIOFMId/inB6jSmPdpGScR19EoiYmZobnBCIiZ95k6KGGp6ni4wvqxilrqBfqo6skLW2YBmjDa28r6Eosp27w8Rov8ekycqoqUHODrTRvXsQwArC2NLF29UM19/LtxO5yJd4Au4CK7DUNxPebG4e7 8n8iv2WmQ66BtoYpo/dvfacBjIkITBE9DGlMvAsOIIZjIUAixliv9ixYZVtLUos5GjwI8gzc3iCGghypQqrbFsme8lwZgLZtIcYfNmTJ34WPTUZw5oRxdD9w0z6iOpO15MgTh1BTTJUKos39jE o/KS64IFVmsFfYT0aU7capdy7at27dw48qdS7eu3bt480I02vUbX2F/JxYNDImw4GiGE/P9qbhxVpWOI/eFKtlNZbWXuzlmG1mv58 gQ4seTbq06dOoU6vGQZJy0FNlMcV czhQ7SQmYd8eMhPs5BxVdfcGEtV3buDBXQ fURxx8oM6MT9P Fh6dOrH2zavc13u9JXVJb520Vp8dvC76wXMuN5Sepm/1WtkEZHDefnzR9Qvsd9 /wi8 en3X0ntYVcSdAE UN4zs7ln24CaLagghIxBaGF8kFGoIYV Ybghh841GIyI5ICIFoklJsigihmimJOLEbLYIYwxSgigiZ 8l2KB 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				break;
			case 'confirm':
				infostyle = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACQAAAAkCAMAAADW3miqAAAABGdBTUEAALGPC/xhBQAAACBjSFJN AAB6JQAAgIMAAPn/AACA6QAAdTAAAOpgAAA6mAAAF2+SX8VGAAAAY1BMVEX///8/lf8/lf8/lf8/ lf8/lf8/lf8/lf8/lf8/lf8/lf8/lf8/lf8/lf8/lf8/lf8/lf9Xov+31//z+P/b6/+Hvf9j qf/D3v9LnP9vsP97tv+fyv/n8v/P5P+TxP+r0P+uPsg8AAAAEHRSTlMAGliOvOD3K4DRAWjNGIyY FB538gAAAAFiS0dEAIgFHUgAAAAJcEhZcwAACxMAAAsTAQCanBgAAAAHdElNRQfmBR4PAwktQlG5 AAABCElEQVQ4y8WU2RKCMAxFtQsiuESJqIjV//9KAds0XRx50vvCBM60yU3CYvE/LYVUuii0kmL5 AVmVayCty1UGqeoNBNrUVcxsd5Bot42YPWS0D6iKzjkcG8RT687iN9aOOQ/IqIuNa1aXy/naYNN2 txNib7P3NZbuoB6xe7N3+6YkD8kfYz8aROeXc1VQOYgmgkBYSBLUdefp6a8DaSEV+/OgxAGUhXTE tINTFGgLFSFzG5grRUUWGupnDEHhdQ9sDizU2cR7fPJQJRZMaZuWhzIxMyORtCUVtcU3OBU12I/K qKdhibNR8UMHY3OND9jQsfENoWB8Zy3CvJWat5zz1nxy9fsP4xd6AcvoLo6BSLErAAAAJXRFWHRk YXRlOmNyZWF0ZQAyMDIyLTA1LTMwVDEyOjAzOjA5KzAzOjAw3pV8TwAAACV0RVh0ZGF0ZTptb2Rp ZnkAMjAyMi0wNS0zMFQxMjowMzowOSswMzowMK/IxPMAAAAASUVORK5CYII='
				break;
			case "info":
			default:
				infostyle =
					'data:image/svg+xml,%3Csvg%20width%3D%2224%22%20height%3D%2224%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%3Cpath%20class="error"%20d%3D%22M12%2022C6.477%2022%202%2017.523%202%2012S6.477%202%2012%202s10%204.477%2010%2010-4.477%2010-10%2010zm-.763-15.864l.11%207.596h1.305l.11-7.596h-1.525zm.759%2010.967c.512%200%20.902-.383.902-.882%200-.5-.39-.882-.902-.882a.878.878%200%2000-.896.882c0%20.499.396.882.896.882z%22%2F%3E%3C%2Fsvg%3E';
		}
		return infostyle;
	},
	show: function (message, style, config) {
		if (typeof config == 'undefined') {
			config = {};
		}
		var timeout = 1;
		var msg = document.createElement("div");
		if (typeof (config.timeout) == 'undefined') {
			try {
				var regex = /(<([^>]+)>)/gi;
				var final = message.replace(regex, "");
				timeout = final.length * 0.25;
			} catch (e) {
				timeout = 2.0;
			}
		} else {
			if (config.timeout > 300) {
				timeout  = config.timeout / 1000
			} else {
				timeout = config.timeout;
			}
		}
		rnd = Math.random() * 1000;
		msg.id = rnd;
		this.obj = msg;
		this.id = rnd;

		infostyle = this.style(style);
		var width_str = ""
		if (window.innerWidth > 500) {
			width_str = "width: fit-content; margin:0 auto;max-width:35%;"
		} else {
			width_str = "width: fit-content; margin:0 auto;max-width:85%;"
		}
		var html = ''
		if(style == '' || typeof style == 'undefined'){
			style = 'info';
		}
		if (style == 'right' || style == 'wrong' || style == 'error' || style == 'confirm' || style == 'info') {
			html = '
'
			if(style == 'confirm' || style == 'error' || style == 'wrong' || style == 'info'){
				html += '' + message + '
';
				if (typeof config.button != 'undefined') {
					for (var x in config.button) {
						html += '' + config.button[x] + ''
					}
				} else {
					html += '确定';
				}
				html += "";
			} else {
				html += '' + message + '';
			}
		} else if (style == 'loading') {
			html = '
' + message + ''
		} else if(style == 'input'){
			html = '
'
			html += '' + message  + '
';
			if (typeof config.button != 'undefined') {
				for (var x in config.button) {
					html += '' + config.button[x] + ''
				}
			} else {
				html += '取消';
				html += '确定';
			}
			html += "";	
		}
		
		html += ''
		msg.innerHTML = html;
		document.body.appendChild(msg);

		var btns = document.getElementsByClassName('btn_' + rnd);
		if (style == 'confirm' || style == 'error' || style == 'info' || style == 'wrong') {
			for (var x in btns) {
				if (typeof btns[x] == 'object') {
					btns[x].addEventListener('click', function (e) {
						try {
							var btn_rnd = this.getAttribute('data-rnd');
							document.body.removeChild(document.getElementById(btn_rnd));
						} catch (e) {
							
						}
						if (typeof config.click != 'undefined') {
							config.click(this.getAttribute('data-btn_index'));
						}
					});
				}
			}
		}
		if (style == 'input') {
			for (var x in btns) {
				if (typeof btns[x] == 'object') {
					var that = this;
					btns[x].addEventListener('click', function (e) {
						var inp_val = document.getElementById('input' + rnd).value;
						try {
							var btn_rnd = this.getAttribute('data-rnd');
							document.body.removeChild(document.getElementById(btn_rnd));
						} catch (e) {
							
						}
						if (typeof config.click != 'undefined') {
							that.result = inp_val;
							config.click(this.getAttribute('data-btn_index'));
						}
					});
				}
			}
			var textbox = document.getElementById('input' + rnd);
			var n = textbox.value.length
			textbox.focus();
			if (navigator.userAgent.indexOf("MSIE") == -1) {
				document.getElementById('input' + rnd).setSelectionRange(n, n);				
			} else {
				var range = document.selection.createRange();
				var textRange = textbox.createTextRange();
				textRange.moveStart('character', n);
				textRange.collapse();
				textRange.select();
			}
		}
		if (style == 'right') {
			document.getElementById('cover_' + rnd).addEventListener('click', function (e) {
				try {
					var btn_rnd = this.getAttribute('data-rnd');
					document.body.removeChild(document.getElementById(btn_rnd));
				} catch (e) {
					
				}
			});
			setTimeout(function () {
				if(document.getElementById(rnd)){
					document.body.removeChild(msg);
				}
				if (typeof config.redirect != 'undefined') {
					location.href = config.redirect;
				}
			}, timeout * 1000);
		}
		return this;
	},
	close: function (who) {
		console.log(who)
		document.body.removeChild(document.getElementById(who.id));
	},
	showtext: function (text) {
		try {
			document.getElementById('wm_content_' + this.id).innerHTML = text;
		} catch (e) {
			console.error("catched error:" + e);
		}
	}
};
var msgbox = new showmsgbox();

为了使用起来更加方便，封装的代码直接实例化了对象。在这个情况下，尽量不要一次弹出2个及以上的弹窗。如果需要这样做，请自行实例化一个对象，使用此对象弹出窗口。例如：var mymsgbox = new showmsgbox();

mymsgbox.show("aaa')

使用方法：

说明：right类型的弹窗，可以自动关闭，也可以通过点击遮罩层关闭，也可以点击图标关闭。其它类型的弹窗，必须点击弹出窗口上的按钮关闭弹窗。

关于参数timeout的单位，如果你觉得是毫秒，它就是毫秒，如果你觉得是秒，它就是秒。你说了算。不必纠结。比如你想2秒关闭弹窗，你即可以写2，也可以写2000

调用方法始终只有一个，也就是 show()。

参数有三个：

第一个是要显示的内容。

第二个是弹窗类型，有以下几种类型：

'right':正确提示。
'error'：错误提示。
'info'：普通信息。
'confirm'：确认框
'loading' : 加载中
‘input’：内容输入框

第三个参数为json对象。可写的配置请看下面的示例。

1、弹出一个自动关闭的窗口

msgbox.show("操作成功", 'right');

如果希望用户点击之后跳转其它页面，请在第三个参数里写"redirect"，例如：

msgbox.show("操作成功", 'right', {'redirect': 'https://blog.csdn.net/'});

注意事项：你可以在第三个参数中，指定 timeout 参数（和redirect同级），来决定这个弹窗多久之后自动关闭。若不指定，系统根据字数的多少计算出多久之后自动关闭。计算规则为 4个汉字为一秒。并且用户点击遮罩层可以自主关闭弹窗。

2、弹出一个错误提示窗口

msgbox.show("操作失败", 'error')

上面是最简单的调用。系统会给出一个确定按钮。点击后关闭弹窗。如果想玩点花样，可以这样调用：

msgbox.show("对不起，操作失败", 'error', {
        button:['算了吧', '重试一下'],
        click: function(e){
            if(e == 0){
                alert('你点的 算了吧');
            } else if(e == 1){
                msgbox.show("你点的 重试一下");
            }
        }
    });

即在第三个参数中，传入你希望显示的按钮button(它是数组)，以及点击按钮后的回调函数click

click函数的参数 e 是你点的第几个按钮。这个第几个按钮，是根据上面按钮数组的索引返回的。可以根据e来判断用户点击了哪个按钮。

3、弹出一个类似prompt的输入框

msgbox.show("请输入姓名", "input", {
        button: ['取消', '确定'],
        default: "WormJan",
        click:function(e){
            msgbox.show("你点的第" + e + "个按钮");
            if(e == 1){
                alert("输入的名字是" + msgbox.result)
            } else{
                alert("取消操作")
            }
        }
    })

注意：如果不需要指定默认的值，第三个参数中可以省略default 参数。只指定 button 和 click即可。如果不指定button，系统默认会给一个取消和一个确定按钮。

4、弹出一个等待框：

var loading = msgbox.show("正在拉屎，请稍候", 'loading');

msgbox.showtext("拉完屎了，什么事？");

注意：showtext 用于更改等待时显示的内容。当然如果不喜欢可以不写。反正等待的不是你是用户。这里有一个非常重要的一点，如果你一次弹出了两个窗口，比如一个正确提示一个等待框，如果使用默认的对象（即msgbox），可能不会在等待框上显示文本变化。如果有这个需求，墙裂建议新定义一个对象来显示这个等待框。例如：

var msg = new showmsgbox();
    var loading = msg.show("正在拉屎，请稍候", 'loading');
    setTimeout(function(){
        msg.showtext("爽，拉完了");
        setTimeout(function(){
            msg.close(loading)
        }, 1000)
    }, 1000)
    
    msgbox.show("请输入姓名", "input", {
        button: ['取消', '确定'],
        default: "WormJan",
        click:function(e){
            msgbox.show("你点的第" + e + "个按钮");
            if(e == 1){
                alert("输入的名字是" + msgbox.result)
            }
        }
    })

这时候，两个弹窗就互不影响了。

询问框和普通消息框如何使用，在你认真阅读了上面的内容后，我相信即使我不写示例代码，你已经可以自己写了。

我先去拉屎了，有问题请评论留言。

封装代码下载地址：

纯js封装一个多功能弹出框，兼容PC和移动端-Javascript文档类资源-CSDN下载

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纯js封装一个多功能弹出框

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