javascript Demo模态窗口_Javascript教程-查字典教程网

下面这个Demo支持回调，可以直接引用modalDialog.js使用,不存在任何Jquery的影子

global.js

复制代码代码如下:

window.js = new myJs(); //为了避免名称重复我们换个名称,附加一个myJs对像到window对象上，然后我们在页面中调用window.js

//js对象

function myJs() {

this.x = 10;

}

//下面我们对myJs进行扩展

myJs.prototype.alert = function (msg) { alert(msg); } //一个alert方法测试调用js.alert('弹出提示');

//获取制定Id的dom对象

myJs.prototype.$ = function (id) { return document.getElementById(id); }

myJs.prototype.bodyWidth = document.documentElement.clientWidth;

myJs.prototype.bodyHeight = document.documentElement.clientHeight;

myJs.prototype.body = document.body;

modalDialog.js 文件代码如下:

代码

复制代码代码如下:

//Modaldialog

function modalDialog() {

this.uri ="about:blank"; //地址

this.title = null; //标题

this.width = 400; //默认宽

this.height = 300; //默认高

this.borderColor = "black"; //边框颜色

this.borderWidth = 2; //边框宽度

this.callback = null; //回调方法

this.background = "black";

this.titleBackground = "silver";

}

modalDialog.prototype.url = this.uri; //这样不用扩展也是可以的但是在页面中只能提示找不到这个属性

modalDialog.prototype.title = this.title;

modalDialog.prototype.width = this.width;

modalDialog.prototype.height = this.height;

modalDialog.prototype.background = this.background;

modalDialog.prototype.borderWidth = this.borderWidth;

modalDialog.prototype.borderColor = this.borderColor;

modalDialog.prototype.titleBackground = this.titleBackground;

modalDialog.prototype.callback = this.callback;

//触发回调方法

modalDialog.prototype.call = function (callback) { if (callback != null) callback(this); if (this.callback != null) this.callback(); }

//显示

modalDialog.prototype.show = function () {

var js = window.js;

//在里面实现显示的细节

var x = js.bodyWidth, y = js.bodyHeight;

//先创建一个层遮罩整个body

var zdiv = "zdiv"; //遮罩层id

document.body.innerHTML += "<div id='" + zdiv + "' + x + "px;height:" + y + "px;background-color:" +

this.background + ";position:absolute;top:0;left:0;" +

"filter:alpha(opacity=80);opacity:0.8;z-index:'></div>";

var mdiv = "mdiv"; //模态窗口层id

document.body.innerHTML += "<div id='" + mdiv + "' + this.width + "px;height:" + this.height + "px;" +

"border:solid " + this.borderWidth + "px " + this.borderColor + ";z-index:20;position:absolute;top:" +

(y - this.height) / 2 + ";left:" + (x - this.width) / 2 + ";'>" +

//加上标题

(this.title != null ? "<div + this.titleBackground + ";line-height:30px;padding:0 10px;width:100%'>" + this.title + "</div>" : "") +

"<div><iframe src='" + this.uri + "' frameborder='0' scrolling='no' + (this.width) + "px;height:" +

(this.title != null ? this.height - 30 : this.height) + "px;'></iframe></div></div>";

}

modalDialog.prototype.close = function () {

document.body.removeChild(window.js.$("mdiv"));

document.body.removeChild(window.js.$("zdiv"));

}

default.html 页面上创建modalDialog

代码

复制代码代码如下:

<head>

<title>模态窗口Demo</title>

var md; //用于页面回调

var uri = "/test.html";

function showModalDialog() {

//处理打开模态窗口

var m = new modalDialog();

m.uri = uri;

m.title = "模态窗口";

m.background = "white";

m.borderColor = "orange";

m.borderWidth = 2;

m.titleBackground = "gold";

m.callback = function () { m.close(); }

// m.call(); 这个回调方法在modalDialog的Uri中调用

m.show();

md = m;

}

</script>

</style>

</head>

<body>

<div>

用javascript+css实现ModalDialog<br />

Jquery框架里面有个插件也可以实现这种效果，不过我们说的是自己实现

<br />

</div>

</body>

</html>

在modalDialog页面中使用window.parent.md.call()触发回调函数

文件打包查字典教程网下载