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singleton-dialog.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>Document</title>
<!-- <script src="http://code.jquery.com/jquery-latest.js"></script> -->
</head>
<body>
<div class="box">
<div id="dialogExample"></div>
</div>
<button onclick="openDialog()">打开</button>
<button onclick="closeDialog()">关闭</button>
<script>
function dialog(option) {
this.title = option.title;
this.id = option.id;
this.context = option.context;
this.open = false;
}
dialog.prototype.create = function() {
if (!this.open) {
var modal = document.getElementById(this.id);
modal.innerHTML = this.context;
this.modal = modal;
this.modal.style.display = 'none';
}
};
dialog.prototype.openItem = function() {
this.open = true;
this.modal.style.display = 'inline';
};
dialog.prototype.close = function() {
this.open = false;
this.modal.style.display = 'none';
};
var creatDialog = (function() {
var instance;
return {
getDialog: function(option) {
if (!instance) {
instance = new dialog(option);
}
return instance;
}
};
})();
// 具体弹框实例化例子
var dialogExample = {
setModal: null,
create: function(option) {
this.setModal = creatDialog.getDialog(option);
this.setModal.create();
},
open: function() {
this.setModal.openItem();
},
close: function() {
this.setModal.close();
}
};
dialogExample.create({
title: 'hello',
id: 'dialogExample',
context: "<div class='dialog-context'>这是一个弹框！</div>"
});
function openDialog() {
dialogExample.open();
}
function closeDialog() {
dialogExample.close();
}
</script>
<style type="text/css">
.box {
display: flex;
justify-content: center;
align-items: center;
width: 100%;
height: 100%;
}
.dialog-context {
width: 400px;
height: 200px;
text-align: center;
line-height: 50px;
position: fixed;
margin-left: -200px;
border: 1px solid #ccc;
background: #fff;
box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
transition: all 0.2s ease;
z-index: 999;
}
</style>
</body>
</html>