Primero, echemos un vistazo al efecto del mensaje emergente:
el código de implementación principal se divide en tres partes
1. Parte CSS. Esta parte define principalmente el estilo, que es la apariencia que vemos. El código principal:
/* - 弹窗 */
notice{
top: 0;left: 0;right: 0;z-index: 10;padding: 1em;position: fixed;user-select: none;pointer-events: none;}
.myth-notice{
color: var(--white);display: table;background: #333;border-radius: 3em;pointer-events: auto;margin: 0 auto 1em auto;box-shadow: 0 5px 5px -2px rgba(0, 0, 0, .2);animation: fade-small-large .3s both;-webkit-animation: fade-small-large .3s both;}
.myth-notice.remove{
animation: fade-in-top .3s both reverse;
-webkit-animation: fade-in-top .3s both reverse;
}
/* -- 弹窗颜色 */
.myth-notice.red{
color: var(--red-color);
background: var(--red);
}
.myth-notice.yellow{
color: var(--yellow-color);
background: var(--yellow);
}
.myth-notice.blue{
color: var(--blue-color);
background: var(--blue);
}
.myth-notice.green{
color: var(--green-color);
background: var(--green);
}
.myth-notice > span{
padding: .5em 1em;
display: table-cell;
vertical-align: middle;
}
.myth-notice .close{
cursor: pointer;
border-radius: 0 1em 1em 0;
transition: background .3s;
}
.myth-notice .close:hover{
background: rgba(0, 0, 0, .1);
}
.myth-notice .close:after{
content: '×';
font: inherit;
}
2. Parte de JavaScript. En esta parte, nos damos cuenta principalmente de que al hacer clic en el botón se muestran diferentes ventanas emergentes de mensajes según las diferentes entradas. Las funciones incluyen cerrar automáticamente el cuadro emergente de mensajes y cerrar manualmente el cuadro emergente de mensajes; los estilos incluyen rojo, amarillo, azul, verde y negro. Cinco mensajes emergentes, los códigos son los siguientes:
; //JavaScript 弱语法的特点,如果前面刚好有个函数没有以";"结尾,那么可能会有语法错误
var myth = (function(selector) {
'use strict';
Array.prototype.remove = function(val) {
var index = this.indexOf(val);
if (index > -1) {
this.splice(index, 1);
}
};
var _myth = function(selector) {
//如果默认参数不设置，自动赋值document
if (!selector) {
selector = document;
}
//获取selector数据类型，代码后面序号1有详细用法解释
var selectorType = typeof(selector);
//根据selector数据类型，进行同操作,代码后面序号2有详细用法解释
switch (selectorType) {
case 'string': //如果是字符串类型，使用querySelectorAll获取selector对象，结果记录到reObj内
var doms = document.querySelectorAll(selector); //通过该方法查找HMTL中select对象，代码后面序号2有详细用法解释
//reObj是个数据对象，目前设置了两个属性：dom是Javascript数据对象，length表示doms对象数量
var reObj = {
dom: doms,
length: doms.length
};
break;
case 'object': //如果是object类型，结果直接记录到reObj内
var reObj = {
dom: [selector],
length: 1
};
break;
default: //除了上述两种类型外，其它返回null对象
return null;
}
reObj.__proto__ = mythExtends;
//__proto__：表示一个对象拥有的内置属性，是JS内部使用寻找原型链的属性。可以理解为它是一个指针，用于指向创建它的函数对象的原型对象prototype（即构造函数的prototype），简单理解为“为reObj添加了一些扩展属性，myth(selector)选择对象后，可以进一步执行mythExtends中的方法。
return reObj;
};
//myth(selector)对象的扩展方法
var mythExtends = {
create:function(tag,prop){
var obj=document.createElement(tag)
//alert(prop)
if (prop) {
if(prop.id) obj.id = prop.id;
if(prop.src) obj.src = prop.src;
if(prop.href) obj.href = prop.href;
if(prop.class) obj.className = prop.class;
if(prop.text) obj.innerText = prop.text;
if(prop.html) obj.innerHTML = prop.html;
if(prop.parent) prop.parent.appendChild(obj);;
}
return obj;
},
showInfo:function(content, attr){
if(!document.querySelector("body > notice"))
{
this.create('notice',{
parent:document.body});
}
var item = this.create("div", {
class: "myth-notice", html: "<span class='content'>" + content + "</span>",parent:document.querySelector("body > notice")});
if(attr && attr.color){
item.classList.add(attr.color);
}
if(attr && attr.time){
setTimeout(this.notice_remove.bind(null,item), attr.time)
}
else{
var close = this.create("span", {
class: "close", parent: item});
var that = this;
close.onclick = function(e){
that.notice_remove(item);
}
}
},
notice_remove:function(item){
item.classList.add("remove");
if(document.querySelector("body > notice"))
{
item.remove()
}
},
infoTip:function(content, attr){
var that = this;
this.click(function(){
that.showInfo(content,attr);
});
},
/* dom 元素遍历 */
each: function(callBack) {
if (!callBack) {
return;
}
for (var i = 0; i < this.length; i++) {
this.dom[i].index = i;
callBack(this.dom[i]); //返回每一个dom对象
}
},
// 设置或读取html
html: function(html) {
if (this.length < 1) {
return this;
}
//设置HTML
if (typeof(html) != 'undefined') {
for (var i = 0; i < this.length; i++) {
this.dom[i].innerHTML = html;
}
return this;
}
//读取HTML
try {
return this.dom[0].innerHTML;
} catch (e) {
return null;
}
},
/*读取或设置属性开始*/
attr: function(attrName, val) {
if (val) {
this.setAttr(attrName, val);
} else {
return this.getAttr(attrName);
}
},
getAttr: function(attrName) {
try {
return this.dom[0].getAttribute(attrName);
} catch (e) {
console.log(_lang.domEmpty);
return null;
}
},
setAttr: function(attrName, val) {
for (var i = 0; i < this.length; i++) {
this.dom[i].setAttribute(attrName, val);
}
return this;
},
/*读取或设置属性结束*/
/* 样式操作开始 */
css: function(csses) {
for (var i = 0; i < this.length; i++) {
var styles = this.dom[i].style;
for (var k in csses) {
styles[k] = csses[k];
}
}
return this;
},
hasClass: function(cls) {
if (this.length != 1) {
return false;
}
return this.dom[0].className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'));
},
addClass: function(cls) {
for (var i = 0; i < this.length; i++) {
if (!this.dom[i].className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'))) {
this.dom[i].className += " " + cls;
}
}
return this;
},
removeClass: function(cls) {
var reg = new RegExp('(\\s|^)' + cls + '(\\s|$)');
for (var i = 0; i < this.length; i++) {
this.dom[i].className = this.dom[i].className.replace(reg, ' ');
}
return this;
},
/* 样式操作结束 */
// 隐藏元素。isAnimate为真，动画方式隐藏元素
hide: function(isAnimate) {
for (var i = 0; i < this.length; i++) {
if (isAnimate) {
var ctdom = myth(this.dom[i]);
ctdom.addClass('myth-fade-out');
setTimeout(function() {
ctdom.dom[0].style.display = 'none';
ctdom.removeClass('myth-fade-out');
}, 300);
} else {
this.dom[i].style.display = 'none';
}
}
return this;
},
// 显示元素 isAnimate为真，动画方式显示元素
show: function(isAnimate) {
for (var i = 0; i < this.length; i++) {
if (isAnimate) {
var ctdom = _myth(this.dom[i]);
ctdom.addClass('myth-fade-in');
setTimeout(function() {
ctdom.dom[0].style.display = 'block';
ctdom.removeClass('myth-fade-in');
}, 300);
} else {
this.dom[i].style.display = 'block';
}
}
return this;
},
// 单击事件
click: function(callBack) {
for (var i = 0; i < this.length; i++) {
if (callBack == undefined) {
_myth(this.dom[i]).trigger('click');
}
this.dom[i].addEventListener('click', callBack);
}
},
setWidth: function(swidth) {
//设置myth(selector)对象宽度
this.dom[0].style.width = swidth;
},
getWidth: function() {
//获取myth(selector)对象宽度
return this.dom[0].offsetWidth;
},
setHeight: function(sheight) {
//设置myth(selector)对象高度
this.dom[0].style.height = sheight;
},
getHeight: function() {
//获取myth(selector)对象高度
return this.dom[0].offsetHeight;
},
appendChild:function(aobject){
this.dom[0].appendChild(aobject);
},
config:function(opts, options) {
//默认参数
if (!opts) return options;
for (var key in opts) {
if (!!opts[key]) {
options[key] = opts[key];
}
}
return options;
}
}
_myth.version = 'myth 1.0'; //设置版本
return _myth;
})(document);
3. Parte HTML, esta parte es cómo usar el código de la primera y segunda parte.
Una es introducir código CSS y código JavaScript.
<link rel="stylesheet" href="css/myth.css">
<script src="js/myth.js"></script>
El segundo es el código de visualización THML.
<div class="mythBox mid">
<br/>
手动关闭的提示信息：<button class="btn red" id="infoTrip1">红色信息提示</button>
<button class="btn blue" id="infoTrip2">红色信息提示</button>
<button class="btn green" id="infoTrip3">红色信息提示</button>
<button class="btn yellow" id="infoTrip4">红色信息提示</button>
<button class="btn " id="infoTrip5">默认消息提示</button>
<br/><br/>
自动关闭的提示信息：<button class="btn blue" id="infoTrip6">自动关闭信息提示</button>
</div>
El tercero es el código de llamada JavaScript.
<script type="text/javascript">
myth('#infoTrip1').infoTip('数据加载完毕....',{
color:'red'});
myth('#infoTrip2').infoTip('数据加载完毕....',{
color:'blue'});
myth('#infoTrip3').infoTip('数据加载完毕....',{
color:'green'});
myth('#infoTrip4').infoTip('数据加载完毕....',{
color:'yellow'});
myth('#infoTrip5').infoTip('数据加载完毕....');
myth('#infoTrip6').infoTip('数据加载完毕....',{
color:'blue',time:3000});
</script>
Vale eso es todo.
Descarga del código fuente: haga clic