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Javascript jQuery plug-in exercises

Source: Internet
Author: User
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Simplified Plugin:
SimplePlugin.htm:
Copy codeThe Code is as follows:
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Title> simplified plug-in </title>
<Script type = "text/ecmascript" src = "../js/jquery-1.2.6.js"> </script>
<Script type = "text/ecmascript" src = ".../js/jquery. SimplePlugin. js"> </script>
<Script type = "text/ecmascript">
$ (Function (){
$ ("Input"). click (function (){
$ ("Body"). dialog ();
})
});
Function f (){
$ ("Body"). find ("# MaskID"). hide (1000 );
$ ("Body"). find ("# DivDialog"). hide (1000 );
}
</Script>
</Head>
<Body>
<Input type = "button" value = "hi plugin"/>
</Body>
</Html>


Jquery. SimplePlugin. js:

Copy codeThe Code is as follows:
$. Fn. dialog = function (){
This. MaskDiv = function () // customize a function
{
// Create a masked background. The transparency is not set here for simplicity. ZIndex determines the mask.
$ ("Body"). append ("<div ID = MaskID> </div> ");
$ ("Body"). find ("# MaskID"). width ("888px"). height ("666px ")
. Css ({position: "absolute", top: "0px", left: "0px", background: "# ccc", zIndex: "10000 "});
}
This. MaskDiv (); // call a custom function.
$ ("Body "). append ("<div ID = DivDialog style = 'display: none '> <ul> <li> prompt </li> </ul> <input type = 'button' value = 'close' onclick = 'f (); '/> </div> ");
Var obj = $ ("body"). find ("# DivDialog ");
Obj. width ("200px"). height ("200px ");
Obj.css ({position: "absolute", top: "100px", left: "100px", background: "# FFCC66", zIndex: "10001 "}). show ("slow ");

Return this;
}

Complete plug-ins:
Myplugin.html:

Copy codeThe Code is as follows:
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"/>
<Title> exercise jQuery plug-in </title>
<Script type = "text/ecmascript" src = "../js/jquery-1.2.6.js"> </script>
<Script type = "text/ecmascript" src = "../js/jquery. firstplugin. js"> </script>
<Script type = "text/ecmascript" src = "../js/jquery. dialog. js"> </script>
<Style type = 'text/css '>
* {Padding: 0; margin: 0}/* this row style must be added. Otherwise, a BUG may occur. */

# MyDiv {
Position: absolute;
Width: 200px;
Height: 200px;
Font-size: 12px;
Background: #666;
Border: 1px solid #000;
Z-index: 10001;
Display: none;
Text-align: center;
}
</Style>
<Script type = "text/ecmascript">
$ (Document). ready (function (){
$ ("Input"). click (function (){
$ ("Body"). dialog ();
})
})
</Script>
</Head>

<Body>
<Div>
<Input type = "button" value = "hi plugin"/>
</Div>
</Body>
</Html>

Jquery. dialog. js:
Copy codeThe Code is as follows:
// JScript File
$. Fn. dialog = function (){
This. MaskDiv = function () // customize a function
{
Var wnd = $ (window), doc = $ (document );
If (wnd. height ()> doc. height () {// when the height is less than one screen
WHeight = wnd. height ();
} Else {// when the height is greater than one screen
WHeight = doc. height ();
}
// Create a mask background
$ ("Body"). append ("<div ID = MaskID> </div> ");
$ ("Body"). find ("# MaskID"). width (wnd. width (). height (wHeight)
. Css ({position: "absolute", top: "0px", left: "0px", background: "# ccc", filter: "Alpha (opacity = 90 );", opacity: "0.3", zIndex: "10000 "});
}
This. sPosition = function (obj) // customize a function with Parameters
{
Var MyDiv_w = parseInt (obj. width ());
Var MyDiv_h = parseInt (obj. height ());

Var width = parseInt ($ (document). width ());
Var height = parseInt ($ (window). height ());
Var left = parseInt ($ (document). scrollLeft ());
Var top = parseInt ($ (document). scrollTop ());

Var Div_topposition = top + (height/2)-(MyDiv_h/2); // calculate the top margin
Var Div_leftposition = left + (width/2)-(MyDiv_w/2); // calculate the left margin
Return Array (Div_topposition, Div_leftposition );
}
This. MaskDiv ();
$ ("Body "). append ("<div ID = DivDialog style = 'display: none'> <ul> <li> prompt </li> </ul> </div> ");
Var obj = $ ("body"). find ("# DivDialog ");
Obj. width ("200px"). height ("200px ");
PosT = this. sPosition (obj );
Obj.css ({position: "absolute", top: PosT [0] + "px", left: PosT [1] + "px", background: "# FFCC66", zIndex: "10001 "}). show ("slow ");
Return this;
}

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