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A JQuery-Based mask Layer (mask)

Source: Internet
Author: User
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If ExtJs is used, you may know that many UI elements are integrated in ExtJs, which makes it easy for us to use. There are two methods, mask () and unmask (). These two methods add a mask layer and a notification message implementation on the specified element to improve the customer experience. Recently, when I was working on a project, I found that sometimes I need to introduce a relatively "large" Extjs to use these two methods, which is a bit uneconomical, therefore, jquery is used to implement a simple mask and unmask method to achieve this effect. As we all know, jquery is an excellent javascript framework, which is not only small but also easy to use. Now I gradually replace all or all the Code implemented by Extjs IN THE SYSTEM WITH Jquery for implementation. Well, I don't know much about it. On my code, this Code is based on the documentMask implemented by a friend on the Internet. It makes use more flexible and convenient.

Copy to ClipboardReference: [www.bkjia.com] (function (){
$. Extend ($. fn ,{
Mask: function (msg, maskDivClass ){
This. unmask ();
// Parameters
Var op = {
Opacity: 0.8,
Z: 10000,
Bgcolor: '# ccc'
};
Var original = $ (document. body );
Var position = {top: 0, left: 0 };
If (this [0] & this [0]! Invalid parameter Doc ument ){
Original = this;
Position = original. position ();
}
// Create a Mask layer and append it to the object
Var maskDiv =$ ('<div class = "maskdivgen"> </div> ');
MaskDiv. appendTo (original );
Var maskWidth = original. outerWidth ();
If (! MaskWidth ){
MaskWidth = original. width ();
}
Var maskHeight = original. outerHeight ();
If (! MaskHeight ){
MaskHeight = original. height ();
}
MaskDiv.css ({
Position: 'absolute ',
Top: position. top,
Left: position. left,
'Z-Index': op. z,
Width: maskWidth,
Height: maskHeight,
'Background-color': op. bgcolor,
Opacity: 0
});
If (maskDivClass ){
MaskDiv. addClass (maskDivClass );
}
If (msg ){
Var msgDiv = $ ('<div style = "position: absolute; border: # 6593cf 1px solid; padding: 2px; background: # ccca "> <div style =" line-height: 24px; border: # a3bad9 1px solid; background: white; padding: 2px 10px 2px 10px "> '+ msg +' </div> ');
MsgDiv. appendTo (maskDiv );
Var widthspace = (maskDiv. width ()-msgDiv. width ());
Var heightspace = (maskDiv. height ()-msgDiv. height ());
MsgDiv.css ({
Cursor: 'wait ',
Top :( heightspace/2-2 ),
Left :( widthspace/2-2)
});
}
MaskDiv. fadeIn ('quick', function (){
// Fade-in and fade-out effect bkjia.com
$ (This). fadeTo ('low', op. opacity );
})
Return maskDiv;
},
Unmask: function (){
Var original = $ (document. body );
If (this [0] & this [0]! Invalid parameter Doc ument ){
Original = $ (this [0]);
}
Original. find ("> div. maskdivgen"). fadeOut ('low', 0, function (){
$ (This). remove ();
});
}
});
})();

The following is the sample code:

<Html> 





Tip: the code can be modified before running!

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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