如今絕大多數網站都不用自帶的alert和confirm了,由於界面太生硬了。所以這個插件就這樣產生了...javascript
來看插件的實現代碼吧:css
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(
function
() {
$.MsgBox = {
Alert:
function
(title, msg) {
GenerateHtml(
"alert"
, title, msg);
btnOk();
//alert只是彈出消息,所以不必用到回調函數callback
btnNo();
},
Confirm:
function
(title, msg, callback) {
GenerateHtml(
"confirm"
, title, msg);
btnOk(callback);
btnNo();
}
}
//生成Html
var
GenerateHtml =
function
(type, title, msg) {
var
_html =
""
;
_html +=
'<div id="mb_box"></div><div id="mb_con"><span id="mb_tit">'
+ title +
'</span>'
;
_html +=
'<a id="mb_ico">x</a><div id="mb_msg">'
+ msg +
'</div><div id="mb_btnbox">'
;
if
(type ==
"alert"
) {
_html +=
'<input id="mb_btn_ok" type="button" value="肯定" />'
;
}
if
(type ==
"confirm"
) {
_html +=
'<input id="mb_btn_ok" type="button" value="肯定" />'
;
_html +=
'<input id="mb_btn_no" type="button" value="取消" />'
;
}
_html +=
'</div></div>'
;
//必須先將_html添加到body,再設置Css樣式
$(
"body"
).append(_html); GenerateCss();
}
//生成Css
var
GenerateCss =
function
() {
$(
"#mb_box"
).css({ width:
'100%'
, height:
'100%'
, zIndex:
'99999'
, position:
'fixed'
,
filter:
'Alpha(opacity=60)'
, backgroundColor:
'black'
, top:
'0'
, left:
'0'
, opacity:
'0.6'
});
$(
"#mb_con"
).css({ zIndex:
'999999'
, width:
'400px'
, position:
'fixed'
,
backgroundColor:
'White'
, borderRadius:
'15px'
});
$(
"#mb_tit"
).css({ display:
'block'
, fontSize:
'14px'
, color:
'#444'
, padding:
'10px 15px'
,
backgroundColor:
'#DDD'
, borderRadius:
'15px 15px 0 0'
,
borderBottom:
'3px solid #009BFE'
, fontWeight:
'bold'
});
$(
"#mb_msg"
).css({ padding:
'20px'
, lineHeight:
'20px'
,
borderBottom:
'1px dashed #DDD'
, fontSize:
'13px'
});
$(
"#mb_ico"
).css({ display:
'block'
, position:
'absolute'
, right:
'10px'
, top:
'9px'
,
border:
'1px solid Gray'
, width:
'18px'
, height:
'18px'
, textAlign:
'center'
,
lineHeight:
'16px'
, cursor:
'pointer'
, borderRadius:
'12px'
, fontFamily:
'微軟雅黑'
});
$(
"#mb_btnbox"
).css({ margin:
'15px 0 10px 0'
, textAlign:
'center'
});
$(
"#mb_btn_ok,#mb_btn_no"
).css({ width:
'85px'
, height:
'30px'
, color:
'white'
, border:
'none'
});
$(
"#mb_btn_ok"
).css({ backgroundColor:
'#168bbb'
});
$(
"#mb_btn_no"
).css({ backgroundColor:
'gray'
, marginLeft:
'20px'
});
//右上角關閉按鈕hover樣式
$(
"#mb_ico"
).hover(
function
() {
$(
this
).css({ backgroundColor:
'Red'
, color:
'White'
});
},
function
() {
$(
this
).css({ backgroundColor:
'#DDD'
, color:
'black'
});
});
var
_widht = document.documentElement.clientWidth;
//屏幕寬
var
_height = document.documentElement.clientHeight;
//屏幕高
var
boxWidth = $(
"#mb_con"
).width();
var
boxHeight = $(
"#mb_con"
).height();
//讓提示框居中
$(
"#mb_con"
).css({ top: (_height - boxHeight) / 2 +
"px"
, left: (_widht - boxWidth) / 2 +
"px"
});
}
//肯定按鈕事件
var
btnOk =
function
(callback) {
$(
"#mb_btn_ok"
).click(
function
() {
$(
"#mb_box,#mb_con"
).remove();
if
(
typeof
(callback) ==
'function'
) {
callback();
}
});
}
//取消按鈕事件
var
btnNo =
function
() {
$(
"#mb_btn_no,#mb_ico"
).click(
function
() {
$(
"#mb_box,#mb_con"
).remove();
});
}
})();
|
Html代碼結構以下,js裏面拼接的不直觀,給出以下:html
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<
div
id
=
"mb_box"
></
div
>
<
div
id
=
"mb_con"
>
<
span
id
=
"mb_tit"
>title</
span
><
a
id
=
"mb_ico"
>x</
a
>
<
div
id
=
"mb_msg"
>msg</
div
>
<
div
id
=
"mb_btnbox"
>
<
input
id
=
"mb_btn_ok"
type
=
"button"
value
=
"肯定"
/>
<
input
id
=
"mb_btn_no"
type
=
"button"
value
=
"取消"
/>
</
div
>
</
div
>
|
mb_box爲半透明遮罩層,將整個頁面遮住,禁止操做;mb_con爲提示框。之因此沒把mb_con放在mb_box裏面,是由於若是放裏面的話,對mb_box設置的透明度會影響到mb_con,使mb_con也會變成透明的。以前也試過background-color:rgba(),惋惜ie8及如下版本不支持。因此仍是把mb_con拿到外面來了,經過設置z-index使其mb_box的上面。java
爲了使插件使用方便,特地的沒有用到圖片,全是經過css來控制界面效果,使用時,引用一個js文件就能夠了。css樣式在js中寫死了,這點可能不太靈活,但使用卻很方便若是你對界面樣式不滿意或者與你網站的色彩風格不一致,那隻能自行修改了。jquery
因爲彈出層(div)沒法作到像原始的alert和confirm那樣作到頁面阻塞效果,所以只能經過 回調函數 來進行模擬。也由於這個緣由,後臺數據操做只能經過回調函數配合ajax來完成的。ajax
Demo以下:app
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<
head
>
<
title
>模擬alert和confirm提示框</
title
>
</
head
>
<
body
>
<
input
id
=
"add"
type
=
"button"
value
=
"添加"
/>
<
input
id
=
"delete"
type
=
"button"
value
=
"刪除"
/>
<
input
id
=
"update"
type
=
"button"
value
=
"修改"
/>
<
script
src
=
"../js/jquery-1.4.1.min.js"
type
=
"text/javascript"
></
script
>
<
script
src
=
"../js/jquery.similar.msgbox.js"
type
=
"text/javascript"
></
script
>
<
script
type
=
"text/javascript"
>
$("#add").bind("click", function () {
$.MsgBox.Alert("消息", "哈哈,添加成功!");
});
//回調函數能夠直接寫方法function(){}
$("#delete").bind("click", function () {
$.MsgBox.Confirm("舒適提示", "執行刪除後將沒法恢復,肯定繼續嗎?舒適提示", function () { alert("你竟然真的刪除了..."); });
});
function test() {
alert("你點擊了肯定,進行了修改");
}
//也能夠傳方法名 test
$("#update").bind("click", function () {
$.MsgBox.Confirm("舒適提示", "肯定要進行修改嗎?", test);
});
//固然你也能夠不給回調函數,點擊肯定後什麼也不作,只是關閉彈出層
//$("#update").bind("click", function () { $.MsgBox.Confirm("舒適提示", "肯定要進行修改嗎?"); });
</
script
>
</
body
>
</
html
>
|
代碼量並很少,若有什麼疑問能夠留言 :)函數